CN115324179A

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Info

Publication number: CN115324179A
Application number: CN202211007877.4A
Authority: CN
Inventors: 李道明; 汪金卫; 余国平; 袁永强; 曾宪坤; 张建军; 陶喆; 肖利兴; 赵自越
Original assignee: Nerin Environmental Technology Co ltd; China Nerin Engineering Co Ltd
Current assignee: Nerin Environmental Technology Co ltd; China Nerin Engineering Co Ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-11-11
Anticipated expiration: 2042-08-22
Also published as: CN115324179B

Abstract

The invention discloses an underground sewage intercepting and discharging system with integrated pumping and gravity flow functions, belonging to the technical field of underground sewage intercepting and discharging, and the technical scheme is characterized by comprising a slag blocking dam, wherein the slag blocking dam is positioned at the upstream of a sewage reservoir and is a water-tight dam body; the intercepting wall is positioned at the upstream of the slag blocking dam, is an underground wall body which is arranged below the ground and is high at two sides and low in the middle of the bottom, and is a seepage guide channel which is positioned at the upstream of the intercepting wall and is a groove which is dug below the ground and is used for communicating the refuse dump and the intercepting wall; and the collecting and draining well is vertically arranged at a low-lying position in the middle of the water intercepting wall. The interception and drainage system does not depend on pumping and drainage facilities any more, can effectively reduce the energy consumption of the pumping and drainage facilities, and can collect the underground sewage more comprehensively, quickly and efficiently.

Description

Translated fromChinese

一种具有泵抽及自流一体化功能的地下污水截排系统An underground sewage interception and drainage system with integrated functions of pumping and self-flowing

技术领域technical field

本发明涉及地下污水截排技术领域，特别涉及一种具有泵抽及自流一体化功能的地下污水截排系统。The invention relates to the technical field of underground sewage interception and drainage, in particular to an underground sewage interception and drainage system with integrated functions of pumping and artesian flow.

背景技术Background technique

金属矿山尤其是露天开采为主的铜矿山，在进行开采的过程中需要剥离大量的表层土及废石，往自然的山沟进行堆放，从而形成排土场。由于占地面积大以及当时的环保要求，早期建设的排土场底部都没有进行防渗，而铜矿山排土场内的土石一般含硫化物和重金属比较高，长期暴露在空气中经氧化和雨水作用后会产生含重金属的酸性水往下渗，最终造成排土场下游地下水污染。近些年随着国家对环保的重视程度越来越高，尤其是对地下水的保护，陆续出台颁布了一系列相关的政策和法规，其中提出了要加强矿山地下水污染源头预防和风险管控，而矿山地下水污染源头主要就是排土场产生的污水，因此，为有效管控矿山地下水污染源头就需要对排土场下游的地下污水尽可能靠前进行拦截并导排至污水库集中收集与处理，以免造成排土场下游地下水污染扩散。Metal mines, especially copper mines, which are mainly open-pit mining, need to strip a large amount of topsoil and waste rock during the mining process, and stack them in natural ravines to form a dump. Due to the large area and the environmental protection requirements at that time, the bottom of the early construction of the dump was not anti-seepage, and the soil and rocks in the copper mine dump generally contain relatively high sulfide and heavy metals, and are oxidized after long-term exposure to the air. After interacting with rainwater, acidic water containing heavy metals will seep down, eventually causing groundwater pollution downstream of the dump. In recent years, as the country pays more and more attention to environmental protection, especially the protection of groundwater, a series of related policies and regulations have been promulgated, which propose to strengthen the source prevention and risk control of groundwater pollution in mines, and The main source of groundwater pollution in mines is the sewage generated by dumps. Therefore, in order to effectively control the source of groundwater pollution in mines, it is necessary to intercept the underground sewage downstream of the dump as far as possible and guide it to the sewage reservoir for centralized collection and treatment to avoid Caused the spread of groundwater pollution downstream of the dump.

目前矿山排土场下游的地下污水截排系统主要是通过在污水库下游设置垂直帷幕，并在垂直帷幕的内侧设置单个渗水井或井群采用泵抽将污水抽回上游的污水库，或在垂直帷幕的内侧设置截获墙和收集井同样采用泵抽将污水抽回上游的污水库，但这样做的缺点也比较明显：At present, the underground sewage interception and drainage system downstream of the mine dump is mainly set up a vertical curtain downstream of the sewage reservoir, and a single seepage well or well group is installed inside the vertical curtain to pump the sewage back to the upstream sewage reservoir, or The interception wall and collection wells are set on the inner side of the vertical curtain to pump the sewage back to the upstream sewage reservoir, but the disadvantages of this method are also obvious:

1、高度依赖抽排设施，一旦抽排设施出现故障或停电时就无法进行污水抽排，从而容易造成地下污水扩散；1. It is highly dependent on the drainage facilities. Once the drainage facilities fail or the power is cut off, the sewage cannot be pumped and discharged, which will easily cause the underground sewage to spread;

2、仅通过抽排设施来抽排污水，能耗高；2. The sewage is pumped and discharged only through the pumping and drainage facilities, which consumes a lot of energy;

3、地下污水的收集效率还有较大的提升空间。3. There is still room for improvement in the collection efficiency of underground sewage.

发明内容Contents of the invention

针对现有技术中存在的问题，本发明的目的在于提供一种具有泵抽及自流一体化功能的地下污水截排系统，该种截排系统结合对污水的泵抽及自流功能为一体，可选择采用泵抽或自流的方式来抽排污水，不再高度依赖抽排设施，并且泵抽和自流排污还可以同步进行，从而能够有效降低抽排设施的能耗，另外，截水墙和导渗沟形成三维立体式的收集系统，能够更加全面、快速、高效地实现对地下污水的收集。Aiming at the problems existing in the prior art, the object of the present invention is to provide an underground sewage interception and drainage system with the integrated function of pumping and self-flowing. Choose to use pumping or self-flowing methods to pump and drain sewage, no longer highly dependent on pumping and drainage facilities, and pumping and self-flowing sewage can be carried out simultaneously, which can effectively reduce the energy consumption of pumping and drainage facilities. In addition, cutoff walls and guides The seepage ditch forms a three-dimensional collection system, which can collect underground sewage more comprehensively, quickly and efficiently.

本发明的上述技术目的是通过以下技术方案得以实现的：一种具有泵抽及自流一体化功能的地下污水截排系统，设于排土场与污水库之间，包括拦渣坝，所述拦渣坝位于所述污水库的上游，为不透水的坝体；截水墙，所述截水墙位于所述拦渣坝的上游，为设于地面以下、底部两侧高中间低的地下墙体；导渗沟，所述导渗沟位于所述截水墙的上游，为地面以下挖成、连通所述排土场与所述截水墙的沟槽；集排井，所述集排井竖立设置于所述截水墙中间的低洼处，所述集排井的侧壁上开设有用于与所述截水墙连通的花孔，所述集排井内还设有污水泵，所述污水泵的输出端通过管道通向所述污水库；导排管，所述导排管一端连接在所述集排井上，另一端穿过所述拦渣坝并通向所述污水库。The above-mentioned technical purpose of the present invention is achieved through the following technical solutions: an underground sewage interception and drainage system with integrated functions of pumping and artesian flow, which is located between the dump site and the sewage reservoir, including a slag dam, the The dam is located upstream of the sewage reservoir, and is an impermeable dam; the cutoff wall, the cutoff wall is located upstream of the dam, and is located below the ground, with two sides of the bottom being high and the middle low. Wall; seepage ditch, the seepage ditch is located upstream of the cutoff wall, and is a groove dug below the ground to connect the dump site and the cutoff wall; collection and drainage well, the collection and drainage well It is erected at the low-lying place in the middle of the cut-off wall, and the side wall of the collection and drainage well is provided with a flower hole for communicating with the cut-off wall. A sewage pump is also provided in the collection and drainage well, and the sewage The output end of the pump leads to the sewage reservoir through the pipeline; the drainage pipe, one end of the drainage pipe is connected to the collection and drainage well, and the other end passes through the slag retaining dam and leads to the sewage reservoir.

在一些实施例中，所述拦渣坝的表面和所述污水库的库底铺设有相互连接成整体的防渗膜。In some embodiments, the surface of the dam and the bottom of the sewage reservoir are laid with an anti-seepage membrane connected to each other as a whole.

在一些实施例中，所述防渗膜远离所述污水库的一端埋设并锚固于所述拦渣坝的坝脚以下，所述防渗膜还在位于所述拦渣坝坝顶的位置处设有锚固点。In some embodiments, the end of the anti-seepage membrane away from the sewage reservoir is embedded and anchored below the dam foot of the dam, and the anti-seepage membrane is also located at the crest of the dam With anchor point.

在一些实施例中，所述导排管穿过所述拦渣坝的同时还穿过所述防渗膜，并在所述防渗膜上留有贯穿口，所述贯穿口与所述导排管的外壁之间通过套筒来进行密封连接。In some embodiments, the drainage pipe passes through the slag dam and also passes through the anti-seepage membrane, and a through hole is left on the anti-seepage membrane, and the through hole is connected with the guide pipe. The outer walls of the row pipes are sealed and connected through sleeves.

在一些实施例中，所述导排管出水口的标高高于所述污水库的溢洪道底板标高。In some embodiments, the elevation of the outlet of the drainage pipe is higher than the elevation of the floor of the spillway of the sewage reservoir.

在一些实施例中，所述截水墙由导水填料充填而成，所述导渗沟内也充填有所述导水填料。In some embodiments, the cutoff wall is filled with water-conducting fillers, and the seepage guide ditch is also filled with the water-conducting fillers.

在一些实施例中，所述截水墙和所述导渗沟的所述导水填料上均铺设有粘土。In some embodiments, clay is laid on the water-conducting filler of the cut-off wall and the seepage ditch.

在一些实施例中，所述导水填料通过反滤透水性土工材料完全包裹。In some embodiments, the water-conducting filler is completely wrapped by reverse filtration water-permeable geotechnical material.

在一些实施例中，所述导渗沟内的所述导水填料中埋设有导渗管，所述导渗管连通所述排土场与所述集排井，所述导渗管的侧壁上开设有花孔。In some embodiments, a seepage pipe is buried in the water-conducting filler in the seepage guide ditch, and the seepage guide pipe communicates with the dump site and the collection and drainage well, and the side wall of the seepage guide pipe There are flower holes on the top.

在一些实施例中，所述集排井的底部标高低于所述截水墙、顶部标高高于所述粘土。In some embodiments, the bottom elevation of the collection and drainage well is lower than the cutoff wall, and the top elevation is higher than the clay.

综上所述，本发明具有以下有益效果：In summary, the present invention has the following beneficial effects:

与现有技术相比，本发明提供的一种具有泵抽及自流一体化功能的地下污水截排系统，可通过导渗沟和截水墙来形成三维立体式的地下污水收集系统，使地下污水的收集效率得到显著的提升，且除配备常规的泵抽设施外还可通过自流方式将地下污水导排至下游污水库，可任选泵抽或自流来进行排污，当然还可同时进行泵抽和自流排污，这样不仅能耗低而且保证率也高，且整个系统不再高度依赖抽排设施，极大降低了地下污水向下游扩散的风险。Compared with the prior art, the present invention provides an underground sewage interception and drainage system with integrated functions of pumping and artesian flow, which can form a three-dimensional underground sewage collection system through seepage ditch and cutoff wall, so that underground sewage The collection efficiency has been significantly improved, and in addition to being equipped with conventional pumping facilities, underground sewage can also be guided to the downstream sewage reservoir by gravity, and pumping or gravity can be selected for sewage discharge, of course, pumping can also be carried out at the same time And self-flowing sewage, which not only has low energy consumption but also has a high guarantee rate, and the whole system is no longer highly dependent on pumping and drainage facilities, which greatly reduces the risk of underground sewage spreading downstream.

附图说明Description of drawings

图1为本发明第一实施例中的具有泵抽及自流一体化功能的地下污水截排系统在矿山排土场下游中的俯视布局图；Fig. 1 is a top view layout diagram of the underground sewage interception and drainage system with integrated function of pumping and artesian flow in the downstream of the mine dump in the first embodiment of the present invention;

图2为沿图中A-A线的剖面图；Figure 2 is a sectional view along line A-A in the figure;

图3为沿图中B-B线的剖面图；Fig. 3 is a sectional view along the B-B line in the figure;

图4为沿图中C-C线的剖面图；Fig. 4 is a sectional view along line C-C in the figure;

图5为本发明第二实施例中的具有泵抽及自流一体化功能的地下污水截排系统在矿山排土场下游中的剖视布局图；Fig. 5 is the cross-sectional layout diagram of the underground sewage interception and drainage system with integrated function of pumping and artesian flow in the downstream of the mine dump in the second embodiment of the present invention;

图6为图5当中D-D线剖面图。FIG. 6 is a cross-sectional view along line D-D in FIG. 5 .

图中：1、拦渣坝；10、排土场；11、防渗膜；2、截水墙；20、污水库；3、导渗沟；30、导水填料；31、导渗管；4、集排井；40、反滤透水性土工材料；5、导排管；50、粘土；60、污水泵。In the figure: 1, slag dam; 10, dump site; 11, anti-seepage membrane; 2, cutoff wall; 20, sewage reservoir; 3, seepage ditch; 30, water-conducting filler; 31, seepage pipe; 4 , Collection and drainage well; 40, reverse filter water-permeable geotechnical material; 5, guide and drainage pipe; 50, clay; 60, sewage pump.

具体实施方式Detailed ways

为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的若干实施例。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本发明的公开内容更加透彻全面。In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

需要说明的是，当元件被称为“固设于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“上游”、“下游”、“底部”、“顶部”以及类似的表述只是为了说明的目的。It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upstream", "downstream", "bottom", "top" and similar expressions are used herein for the purpose of description only.

除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

实施例1Example 1

图1至图4所示为本发明实施例1中的具有泵抽及自流一体化功能的地下污水截排系统，本实施例为拦渣坝1上游没有淤积库容、已淤满从排土场10上流下来的泥沙及石渣、即将要进行封场绿化的情况(如图2所示)，本实施例中，截排系统设于排土场10与污水库20之间，用于拦截及导排矿山排土场10下游的地下污水，包括拦渣坝1、截水墙2、导渗沟3、集排井4以及导排管5。Figures 1 to 4 show the underground sewage interception and drainage system with integrated functions of pumping and artesian flow inEmbodiment 1 of the present invention. 10. The silt and gravel flowing down from the top will be closed for greening (as shown in Figure 2). And guide and drain the underground sewage downstream of themine dump site 10, including aslag check dam 1, acutoff wall 2, aseepage diversion ditch 3, a collection and drainage well 4 and a drainage pipe 5.

如图2所示，拦渣坝1位于污水库20的上游，采用粘性土筑坝而成，为不透水、用于拦渣及阻水的坝体，为了防渗，可在拦渣坝1的表面和污水库20的库底铺设有相互连接成整体的防渗膜11，防渗膜11可选用2.0mm厚的HDPE土工膜，为了对防渗膜11进行锚固，可将防渗膜11远离污水库20的一端(即防渗膜11位于拦渣坝1上游坡面坝底的一端)埋设并锚固于拦渣坝1的坝脚以下并低于集排井4底部以下至少1m，优选为1m，以实现更充分的防渗，同时减少开挖工程量，还可在防渗膜11位于拦渣坝1坝顶的位置处设置锚固点。As shown in Figure 2, theslag dam 1 is located at the upstream of thesewage reservoir 20, and is formed by building a dam with cohesive soil. The surface of thesewage reservoir 20 and the bottom of thesewage reservoir 20 are laid with an anti-seepage membrane 11 connected to each other as a whole. The anti-seepage membrane 11 can be selected from a 2.0mm thick HDPE geomembrane. In order to anchor the anti-seepage membrane 11, the anti-seepage membrane 11 can be One end away from the sewage reservoir 20 (that is, the end of the anti-seepage membrane 11 located at the bottom of the slope surface of thedam 1 upstream) is buried and anchored below the dam foot of thedam 1 and is lower than at least 1 m below the bottom of the collection and drainage well 4, preferably 1m, to achieve more sufficient anti-seepage, while reducing the amount of excavation, the anti-seepage membrane 11 can also be located at the position of thedam 1 crest set anchor point.

如图1-4所示，截水墙2位于拦渣坝1的上游，本实施例优选截水墙2平行于拦渣坝1的坝轴线设置，为设于地面以下、底部两侧高中间低、用于拦截地下污水的条形地下墙体，截水墙2底部两侧形成的坡度为2％，截水墙2的厚度为0.6～1m，本实施例优选为0.8m，深度为3～5m，本实施例优选为4m，截水墙2在垂直距离拦渣坝1上游坝脚3m的位置处进行布置，截水墙2从上至下依次由压实的粘土50层和导水填料30层充填而成，其中粘土50层厚1m并与地面标高齐平，压实度为0.9，粘土50层用于阻隔地表水进入截水墙2内，减少了地下污水产生量同时，还减轻了截排系统的负担，导水填料30层厚3m，导水填料30可由粒径为20～50mm的碎石构成，其被反滤透水性土工材料40包裹起来，本实施例优选为200g/m²的无纺土工布，以起到反滤作用，防止细颗粒带入截水墙或盲沟内造成淤堵，影响导排污水效果。As shown in Figures 1-4, thecutoff wall 2 is located upstream of thedam 1. In this embodiment, thecutoff wall 2 is preferably arranged parallel to the dam axis of thedam 1, and is located below the ground, on both sides of the bottom and in the middle. Low, strip-shaped underground wall for intercepting underground sewage, the slope formed on both sides of the bottom of the cut-offwall 2 is 2%, the thickness of the cut-offwall 2 is 0.6～1m, the preferred embodiment is 0.8m, and the depth is 3 ~ 5m, preferably 4m in this embodiment, thecutoff wall 2 is arranged at a position 3m away from the upstream dam foot of thedam 1 vertically, and thecutoff wall 2 is sequentially composed of 50 layers of compacted clay and water guide It is filled with 30 layers of filler, among which 50 layers of clay are 1m thick and level with the ground level, and the compaction degree is 0.9. The burden on the interception and drainage system is reduced. The thickness of the water-conductingfiller 30 is 3m. The water-conductingfiller 30 can be composed of crushed stones with a particle size of 20-50 mm, which is wrapped by the reverse filter water-permeablegeotechnical material 40, which is preferably 200 g in this embodiment. /m2 of non^- woven geotextiles to play the role of anti-filtration, to prevent fine particles from being brought into the cut-off wall or blind ditch to cause silting and affect the sewage drainage effect.

如图1、图2以及图4所示，导渗沟3位于截水墙2的上游，为地面以下挖成、沿纵坡坡向连通排土场10与截水墙2、用于收集及导排地下渗水的线形沟槽，导渗沟3的纵向坡度为2％，本实施例中的导渗沟3设有三条，三条导渗沟3在向截水墙2方向导排的路径中逐渐汇合成一条，整体呈三叉状或者“鱼刺”状排布(如图1所示)，导渗沟3的宽度为0.6～1m，本实施例中优选为1m，导渗沟3的深度为1～2m，本实施例中优选为2m，导渗沟3内从上至下依次为压实的粘土50和填充的导水填料30，其中粘土50层和导水填料30层的厚度均为1m，粘土50层压实度为0.9并与地面标高齐平，粘土50层用于阻隔地表水进入导渗沟3内，减少地下污水产生量同时，还减轻了截排系统的负担，导水填料30可由粒径为20～50mm的碎石构成，其被反滤透水性土工材料40包裹起来，本实施例优选为200g/m²的无纺土工布，以起到反滤作用，防止细颗粒带入截水墙或盲沟内造成淤堵，影响导排污水效果，为了加快污水导排，可在导渗沟3内的导水填料30中埋设有导渗管31，并将导渗管31连通排土场10与集排井4，导渗管31可选用DN200～DN315的HDPE管，本实施例优选为DN315的HDPE管，并在导渗管31的侧壁上开设有花孔，该花孔孔径为6mm～10mm，优选为10mm(如图2和图4所示)，导渗管31与集排井4最好采用密封性好的焊接来进行连接，焊接前需在集排井4上开设焊接孔，焊接孔的开孔孔径选定为315mm，该尺寸与导渗管31的管径一致即可。As shown in Fig. 1, Fig. 2 and Fig. 4, theseepage diversion ditch 3 is located at the upstream of thecutoff wall 2, dug below the ground, connecting thedump site 10 and thecutoff wall 2 along the longitudinal slope, and used for collecting and guiding The linear groove for draining underground water seepage, the vertical slope of theseepage ditch 3 is 2%, theseepage guide ditch 3 in the present embodiment is provided with three, and the threeseepage guide trenches 3 are gradually merged into a path in the direction of thecutoff wall 2 , the overall trident or "fishbone" shape arrangement (as shown in Figure 1), the width of theseepage ditch 3 is 0.6 ~ 1m, preferably 1m in this embodiment, the depth of theseepage ditch 3 is 1 ~ 2m, this implementation In the example, it is preferably 2m, and in theseepage ditch 3, from top to bottom, there are compactedclay 50 and water-conductingfiller 30 filled successively, wherein the thickness of 50 layers of clay and 30 layers of water-conducting filler is 1m, and 50 layers of clay are compacted The density is 0.9 and is flush with the ground level. The 50 layers of clay are used to prevent surface water from entering theseepage ditch 3, reducing the amount of underground sewage and reducing the burden on the interception and drainage system. 50mm of crushed stone, which is wrapped by reverse filter water-permeablegeotechnical material 40, this embodiment is preferably 200g/m² non-woven geotextiles, to play the role of reverse filter, to prevent fine particles from being brought into the cut-off wall or blind Blockage is caused in the ditch, which affects the sewage drainage effect. In order to speed up the drainage of sewage, aseepage guide 31 can be buried in thewater guide filler 30 in theseepage guide ditch 3, and theseepage guide 31 is connected to thedump site 10 and the collector. Drain well 4,seepage guide pipe 31 can choose the HDPE pipe of DN200～DN315, present embodiment preferably is the HDPE pipe of DN315, and is provided with flower hole on the side wall ofseepage guide pipe 31, and this flower hole aperture is 6mm～10mm , preferably 10mm (as shown in Figure 2 and Figure 4), theinfiltration pipe 31 and the drainage well 4 are preferably connected by welding with good sealing performance, and welding holes need to be opened on the drainage well 4 before welding, and the welding The opening aperture of hole is selected as 315mm, and this size is consistent with the pipe diameter ofpermeation tube 31 and gets final product.

为了使截水墙2中聚集的污水能够自然流入至集排井4中，需将集排井4竖立设置于截水墙2中间的低洼处，并在集排井4的侧壁上开设用于与截水墙2连通的花孔，并且花孔的分布位置与导水填料30层所在的位置重合，花孔最好呈梅花型布置，花孔的孔径为10～16mm，优选为16mm，集排井4是用于集水及导排的竖向管井，其可采用管径为DN630～DN1000的HDPE管，优选为DN630的HDPE管，为了安全和避免自然雨水流入集排井4内，集排井4配备有带锁的井盖，集排井4的底部还设有具有液位控制功能的具有自动启停功能的污水泵60，并且最好要求选用的污水泵60具有耐酸耐腐蚀的性能，污水泵60的输出端上连接有管道，管道从集排井4内伸出并通向污水库20，集排井4的底部标高低于截水墙2、顶部标高高于粘土50，具体的，集排井4地面以下深度为4～8m，露出地面的顶部标高不小于0.5m，底部标高低于截水墙2底部最低点不小于1m，而作为本实施例中的优选方案，集排井4的整体高度为6m，其中地面以下深度为5m，露出地面1m，底部标高低于截水墙2底部最低点1m(如图3所示)，如此设置让集排井4的井底始终低于截水墙2底部最低点的标高，使截水墙2中的污水能够更加彻底地随着重力渗流并汇集在集排井4内，以免污水在截水墙2中因无法及时排走而大量聚集，另外集排井4的顶部高于地面设置能够避免地表雨水流入集排井4中，由于本系统主要在于对地下污水的处理，如果地表雨水也进入本系统的话，不但增加污水量，而且给本系统的工作带来额外负担，因此需要将集排井4的顶部高于地面设置，以避免地表雨水流入集排井4中。In order to allow the sewage accumulated in thecutoff wall 2 to flow naturally into the collection and drainage well 4, the collection and drainage well 4 needs to be erected in the low-lying place in the middle of thecutoff wall 2, and a special purpose is opened on the side wall of the collection and drainage well 4. For the flower holes connected to the cut-offwall 2, and the distribution positions of the flower holes coincide with the positions of the 30 layers of water-conducting fillers, the flower holes are preferably arranged in a plum blossom shape, and the diameter of the flower holes is 10-16mm, preferably 16mm. The collection and drainage well 4 is a vertical tube well for water collection and drainage. It can use HDPE pipes with a pipe diameter of DN630 to DN1000, preferably DN630 HDPE pipes. In order to be safe and avoid natural rainwater from flowing into the collection and drainage well 4, The collection and drainage well 4 is equipped with a well cover with a lock, and the bottom of the collection and drainage well 4 is also equipped with asewage pump 60 with a liquid level control function and an automatic start-stop function. performance, the output end of thesewage pump 60 is connected with a pipeline, and the pipeline extends from the collection and drainage well 4 and leads to thesewage reservoir 20, the bottom elevation of the collection and drainage well 4 is lower than thecutoff wall 2, and the top elevation is higher than theclay 50, Specifically, the depth below the surface of the collection and drainage well 4 is 4-8m, the top elevation exposed on the ground is not less than 0.5m, and the bottom elevation is not less than 1m lower than the lowest point at the bottom of the cut-offwall 2. As a preferred solution in this embodiment, The overall height of the collection and drainage well 4 is 6m, wherein the depth below the ground is 5m, 1m above the ground, and the bottom elevation is lower than the lowest point 1m at the bottom of the cutoff wall 2 (as shown in Figure 3), so that the well of the collection and drainage well 4 is set The bottom is always lower than the elevation of the lowest point at the bottom of thecutoff wall 2, so that the sewage in thecutoff wall 2 can more thoroughly seep with gravity and collect in the collection and drainage well 4, so as to prevent the sewage from being unable to flow in time in thecutoff wall 2. Drain away and gather in a large number, and the top of collecting and discharging well 4 is higher than ground and can avoid surface rainwater to flow in collecting and discharging well 4 in addition, because this system mainly is to the treatment of underground sewage, if surface rainwater also enters this system, not only increase The amount of sewage, and it brings additional burden to the work of the system, so the top of the collection and drainage well 4 needs to be set higher than the ground, so as to avoid surface rainwater from flowing into the collection and drainage well 4.

如图1和图2所示，集排井4上还连接有导排管5，导排管5可采用管径为DN200～DN400的HDPE管，其管身不开孔，纵向坡度不小于1％，在本实施例中，导排管5可采用DN315的HDPE管，其纵向坡度可设为2％，集排井4和导排管5最好采用密封性好的焊接来进行连接，焊接前需在集排井4上开设焊接孔，焊接孔的开孔孔径选定为315mm，该尺寸与导排管5的管径一致即可，导排管5可埋设于粘土50层中，导排管5一端连接在集排井4上，另一端穿过拦渣坝1并通向污水库20，导排管5穿过拦渣坝1的同时还穿过防渗膜11，并在防渗膜11上留有贯穿口，贯穿口与导排管5的外壁之间可通过套筒来进行密封连接，即在导排管5上套设套筒，通过套筒与防渗膜11之间的热焊，来实现密封连接，套筒可采用2.0mm厚的HDPE材质制作而成，且为了避免污水倒灌，要让导排管5出水口的标高高于污水库20的溢洪道底板标高。As shown in Figure 1 and Figure 2, the drainage pipe 5 is also connected to the collection and drainage well 4, and the drainage pipe 5 can be a HDPE pipe with a pipe diameter of DN200-DN400. %, in the present embodiment, the HDPE pipe of DN315 can be used for the drainage pipe 5, and its longitudinal gradient can be set as 2%. Need to offer welding hole on the collecting and discharging well 4 before, the opening aperture of welding hole is selected as 315mm, this size is consistent with the pipe diameter of guiding pipe 5 and gets final product, and guiding pipe 5 can be buried inclay 50 layers, leading One end of the drainage pipe 5 is connected to the collection and drainage well 4, and the other end passes through theslag dam 1 and leads to thesewage reservoir 20. A through hole is left on the permeable membrane 11, and a sleeve can be used to seal the connection between the through hole and the outer wall of the drainage pipe 5, that is, a sleeve is sleeved on the drainage pipe 5, and the connection between the sleeve and the anti-seepage membrane 11 The heat welding between them is used to realize the sealed connection. The sleeve can be made of 2.0mm thick HDPE material, and in order to avoid sewage backflow, the elevation of the water outlet of the guide pipe 5 should be higher than the elevation of the spillway floor of thesewage reservoir 20.

通过以上技术方案，上游排土场10渗入地下的污水在多条导渗沟3的导流以及汇流的作用下，被逐渐引流导向至截水墙2，其中导渗沟3能够将地下污水快速导走，避免污水进一步向深处渗透，从而起到预先截排的作用，导渗沟3中的导渗管31则提供了一条高速导流通道，能够将污水直接导入至集排井4中，起到了进一步加速污水截排的作用，导渗沟3是水平向线性收集，截水墙2是竖向面的收集，二者共同构成三维立体式的地下污水收集截排系统，污水渗入截水墙2内之后，在重力的作用下将逐渐汇集至集排井4中，此时可通过污水泵60来将集排井4内的污水抽送至污水库20，也可随着集排井4内水位的升高，通过导排管5以自流的方式来将污水排送至污水库20，与现有技术相比，本系统可通过导渗沟3和截水墙2来形成三维立体式的地下污水收集系统，使地下污水的收集效率得到显著的提升，且除配备常规的泵抽设施外还可通过自流方式将地下污水导排至下游污水库20，可任选泵抽或自流来进行排污，当然还可同时进行泵抽和自流排污，这样不仅能耗低而且保证率也高，且整个系统不再高度依赖抽排设施，极大降低了地下污水向下游扩散的风险。Through the above technical solutions, the sewage infiltrated into the ground from theupstream dump site 10 is gradually diverted to thecutoff wall 2 under the diversion and confluence ofmultiple seepage ditches 3, wherein theseepage guide trenches 3 can quickly guide the underground sewage away , to prevent the sewage from infiltrating further into the depths, thereby playing the role of pre-interception and drainage, and theseepage guide pipe 31 in theseepage ditch 3 provides a high-speed diversion channel, which can directly guide the sewage into the collection and drainage well 4, which plays a role To further accelerate the effect of sewage interception and drainage, theseepage ditch 3 is for horizontal linear collection, and thecutoff wall 2 is for vertical collection. The two together form a three-dimensional underground sewage collection and interception system, and sewage seeps into thecutoff wall 2 Afterwards, under the action of gravity, it will be gradually collected in the collection and drainage well 4. At this time, the sewage in the collection and drainage well 4 can be pumped to thesewage reservoir 20 by thesewage pump 60, and it can also be used as the water level in the collection and drainage well 4 increases. Elevated, the sewage is discharged to thesewage reservoir 20 in a self-flowing manner through the drainage pipe 5. Compared with the prior art, this system can form a three-dimensional underground sewage collection through theseepage ditch 3 and thecutoff wall 2 system, the collection efficiency of underground sewage has been significantly improved, and in addition to being equipped with conventional pumping facilities, underground sewage can also be guided and discharged to thedownstream sewage reservoir 20 by gravity, and pumping or gravity can be selected for sewage discharge, of course Pumping and self-flowing sewage can also be carried out at the same time, which not only has low energy consumption but also has a high guarantee rate, and the whole system is no longer highly dependent on pumping and drainage facilities, which greatly reduces the risk of underground sewage spreading downstream.

实施例2Example 2

图5和图6所示为本发明实施例2中的具有泵抽及自流一体化功能的地下污水截排系统，本实施例为拦渣坝1上游留有淤积库容、尚未淤满从排土场10上流下来的泥沙及石渣、将来淤满后再进行封场绿化的情况(如图5所示)，本实施例与实施例1不同之处在于，本实施例中截水墙2和导渗沟3的导水填料30上均不铺设粘土50，本实施例中，并未在拦渣坝1的上游铺设大量粘土50，为从排土场10上流下来的泥沙及石渣提供了充足的淤积空间同时，能够快速将排土场10与拦渣坝1之间产生的地表污水收集，以免这些泥沙及石渣随着雨水四处流动而超出本污水截排系统的有效作用范围。Fig. 5 and Fig. 6 show the underground sewage intercepting and discharging system with pumping and artesian integration functions inEmbodiment 2 of the present invention. The silt and gravel flowing down on thefield 10 will be closed and greened after being silted up in the future (as shown in Figure 5). The difference between this embodiment andEmbodiment 1 is that thecutoff wall 2 in this embodiment All do not layclay 50 on the water-conductingfiller 30 ofseepage ditch 3, in the present embodiment, do not lay a large amount ofclay 50 at the upstream ofdam 1, provide for the silt and gravel that flow down fromdump site 10 At the same time, it can quickly collect the surface sewage generated between thedump site 10 and thedam 1, so as to prevent the sediment and gravel from flowing around with the rainwater and exceeding the effective range of the sewage interception and drainage system .

需要指出的是，本发明实施例2所提供的装置，其实现原理及产生的一些技术效果和第一实施例相同，为简要描述，本实施例未提及之处，可参考第一实施例中相应内容。It should be pointed out that the realization principle and some technical effects of the device provided byEmbodiment 2 of the present invention are the same as those of the first embodiment. For a brief description, reference can be made to the first embodiment corresponding content.

以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims

Translated fromChinese

1.一种具有泵抽及自流一体化功能的地下污水截排系统，设于排土场(10)与污水库(20)之间，其特征在于，包括：1. An underground sewage interception and drainage system with integrated functions of pumping and artesian flow, which is located between the dump site (10) and the sewage reservoir (20), is characterized in that it comprises:

拦渣坝(1)，所述拦渣坝(1)位于所述污水库(20)的上游，为不透水的坝体；A dam (1), the dam (1) is located upstream of the sewage reservoir (20), and is an impermeable dam body;

截水墙(2)，所述截水墙(2)位于所述拦渣坝(1)的上游，为设于地面以下、底部两侧高中间低的地下墙体；A cut-off wall (2), the cut-off wall (2) is located upstream of the slag check dam (1), and is an underground wall that is located below the ground and is high on both sides of the bottom and low in the middle;

导渗沟(3)，所述导渗沟(3)位于所述截水墙(2)的上游，为地面以下挖成、连通所述排土场(10)与所述截水墙(2)的沟槽；A seepage ditch (3), the seepage ditch (3) is located upstream of the cutoff wall (2), and is dug below the ground to communicate with the dump site (10) and the cutoff wall (2) groove;

集排井(4)，所述集排井(4)竖立设置于所述截水墙(2)中间的低洼处，所述集排井(4)的侧壁上开设有用于与所述截水墙(2)连通的花孔，所述集排井(4)内还设有污水泵(60)，所述污水泵(60)的输出端通过管道通向所述污水库(20)；The collection and drainage well (4), the collection and drainage well (4) is erected at the low-lying place in the middle of the described cutoff wall (2), and the side wall of the collection and drainage well (4) is provided with a A flower hole connected to the water wall (2), and a sewage pump (60) is also provided in the collection and drainage well (4), and the output end of the sewage pump (60) leads to the sewage reservoir (20) through a pipeline;

导排管(5)，所述导排管(5)一端连接在所述集排井(4)上，另一端穿过所述拦渣坝(1)并通向所述污水库(20)。A drainage pipe (5), one end of the drainage pipe (5) is connected to the collection well (4), and the other end passes through the slag dam (1) and leads to the sewage reservoir (20) .

2.根据权利要求1所述的一种具有泵抽及自流一体化功能的地下污水截排系统，其特征在于：所述导排管(5)出水口的标高高于所述污水库(20)的溢洪道底板标高。2. A kind of underground sewage interception and drainage system with pumping and artesian integration functions according to claim 1, characterized in that: the elevation of the water outlet of the guide pipe (5) is higher than that of the sewage reservoir (20 ) of the spillway floor level.

3.根据权利要求1所述的一种具有泵抽及自流一体化功能的地下污水截排系统，其特征在于：所述截水墙(2)由导水填料(30)充填而成，所述导渗沟(3)内也充填有所述导水填料(30)。3. The underground sewage interception and drainage system with integrated function of pumping and artesian flow according to claim 1, characterized in that: the cut-off wall (2) is filled with water-conducting filler (30), and the The water-conducting filler (30) is also filled in the seepage guide ditch (3).

4.根据权利要求3所述的一种具有泵抽及自流一体化功能的地下污水截排系统，其特征在于：所述截水墙(2)和所述导渗沟(3)的所述导水填料(30)上均铺设有粘土(50)。4. A kind of underground sewage interception and drainage system with pumping and artesian integration functions according to claim 3, characterized in that: the cut-off wall (2) and the guide of the seepage ditch (3) Clay (50) is laid on the water filler (30).

5.根据权利要求3-4任一所述的一种具有泵抽及自流一体化功能的地下污水截排系统，其特征在于：所述导渗沟(3)内的所述导水填料(30)中埋设有导渗管(31)，所述导渗管(31)连通所述排土场(10)与所述集排井(4)，所述导渗管(31)的侧壁上开设有花孔。5. According to any one of claims 3-4, an underground sewage interception and drainage system with integrated functions of pumping and artesian flow, characterized in that: the water-conducting filler (30) in the seepage-guiding ditch (3) ) is buried with a seepage pipe (31), and the seepage pipe (31) communicates with the dump site (10) and the collection and drainage well (4), and on the side wall of the seepage pipe (31) Open with flower holes.

6.根据权利要求4任一所述的一种具有泵抽及自流一体化功能的地下污水截排系统，其特征在于：所述集排井(4)的底部标高低于所述截水墙(2)、顶部标高高于所述粘土(50)和所述导水填料(30)。6. According to any one of claim 4, an underground sewage interception and drainage system with integrated function of pumping and artesian flow, characterized in that: the bottom elevation of the collection and drainage well (4) is lower than the cutoff wall (2), the elevation of the top is higher than the clay (50) and the water-conducting filler (30).