CN114251108A - Rapid grouting hole sealing device for tunnel lining structure and using method - Google Patents

Abstract

Translated fromChinese

本发明公开了一种隧道衬砌结构快速注浆封孔装置及使用方法，涉及建筑施工技术领域，解决了现有注浆导管无法循环使用以及安装过程中易出现注浆深度变化的问题，注浆深度不会发生变化，保证了注浆效果，具体方案为：包括注浆导管，所述注浆导管两端分别为注浆口和注浆入口，注浆导管上靠近注浆口的一端依次套接有封孔机构和外套钢管，注浆导管的另一端设有旋转限位机构；所述旋转限位机构由轴承和弹簧构成，所述轴承固定套设在外套钢管靠近注浆入口的一端，弹簧的一端与轴承的外壁固定连接，弹簧的另一端与注浆导管注浆入口端的外壁固定连接。

The invention discloses a rapid grouting hole sealing device for a tunnel lining structure and a method for using the same, which relate to the technical field of building construction and solve the problems that the existing grouting conduit cannot be recycled and the grouting depth is easily changed during installation. The depth will not change, ensuring the grouting effect. The specific scheme is: including a grouting conduit, the two ends of the grouting conduit are respectively a grouting port and a grouting inlet, and the end of the grouting conduit close to the grouting port is sleeved in turn. The hole sealing mechanism and the outer steel pipe are connected, and the other end of the grouting conduit is provided with a rotation limit mechanism; the rotation limit mechanism is composed of a bearing and a spring, and the bearing is fixedly sleeved on one end of the outer steel pipe close to the grouting inlet, One end of the spring is fixedly connected with the outer wall of the bearing, and the other end of the spring is fixedly connected with the outer wall of the grouting inlet end of the grouting conduit.

Description

Rapid grouting hole sealing device for tunnel lining structure and using method

Technical Field

The invention relates to the technical field of building construction, in particular to a rapid grouting hole sealing device for a tunnel lining structure and a using method thereof.

Background

The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Grouting refers to a method of injecting some curable grout into cracks or pores of a geotechnical ground by using a proper method in the building engineering, and improving the physical and mechanical properties thereof by means of replacement, filling, extrusion and the like. In the existing grouting construction, the grouting process is usually completed by a grouting machine, which is a device driven by a grouting pump or a grouting piston as a core and used for injecting grout into a filling area through a grouting pipeline.

The inventor finds that the grouting pipelines used at present are all circular pipe structures, and due to the deviation of the hole diameter of the drilled hole, a gap exists between the drilled hole and the grouting pipeline, so that the gap can cause the leakage of grouting pressure during grouting, the pressure cannot meet the requirement, and the grouting effect is poor; and current inflation formula slip casting pipe can avoid the problem in gap, nevertheless can't recycle, and inflation formula slip casting pipe is mostly the sheathed tube structure, moves the inflation that realizes the inflation stopper through sheathed tube twisting, in the slip casting in-process thick liquid can get into the gap between the sleeve pipe, can influence sheathed tube use after the thick liquid solidifies, and current inflation formula slip casting pipe can't guarantee the fixed of slip casting pipe position when handheld twisting moves the sleeve pipe for the slip casting degree of depth changes, leads to the slip casting effect poor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a rapid grouting hole sealing device for a tunnel lining structure and a using method thereof.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the invention provides a rapid grouting hole sealing device for a tunnel lining structure, which comprises a grouting guide pipe, wherein a grouting opening and a grouting inlet are respectively arranged at two ends of the grouting guide pipe, a hole sealing mechanism and a jacket steel pipe are sequentially sleeved at one end, close to the grouting opening, of the grouting guide pipe, and a rotation limiting mechanism is arranged at the other end of the grouting guide pipe;

rotatory stop gear comprises bearing and spring, the fixed cover of bearing is established at the overcoat steel pipe and is close to the one end of slip casting entry, the one end of spring and the outer wall fixed connection of bearing, the other end of spring and the outer wall fixed connection of slip casting pipe slip casting entry end.

As a further technical scheme, the grouting guide pipe is connected with the outer steel sleeve pipe through threads, and the length of the outer steel sleeve pipe is smaller than that of the grouting guide pipe.

As a further technical scheme, the hole sealing mechanism is composed of a stopper and an expansion rubber pipe, the stopper is fixedly arranged at one end, close to a grouting opening, of a grouting guide pipe, and the expansion rubber pipe is sleeved on the grouting guide pipe.

As a further technical scheme, the expansion rubber pipe is positioned between the stop head and the outer sleeve steel pipe, and the expansion rubber pipe is in an extruded expansion state when the outer sleeve steel pipe is in a screwing state.

As a further technical scheme, the rotary limiting mechanism is also provided with a telescopic rubber hose for shielding slurry overflowing from the grouting inlet.

As a further technical scheme, one end of the telescopic rubber hose is fixedly connected with the outer wall of the bearing, and the other end of the telescopic rubber hose is fixedly connected with the outer wall of the grouting inlet end of the grouting guide pipe.

As a further technical scheme, the telescopic rubber hose is positioned at the lower end of the spring.

As a further technical scheme, a valve is arranged at a grouting inlet of the grouting guide pipe and used for starting and stopping grouting work, and controlling grouting amount and grouting speed.

As a further technical scheme, the springs are uniformly arranged along the circumferential direction of the grouting guide pipe.

In a second aspect, the invention provides a use method based on the rapid grouting hole sealing device for the tunnel lining structure, and the use method specifically comprises the following steps:

placing the grouting guide pipe into the drill hole, so that the distance between a grouting opening and the bottom of the drill hole meets the requirement of grouting depth;

screwing in the outer sleeve steel pipe, and extruding the expansion rubber pipe under the coordination of the stop head to expand the expansion rubber pipe;

connecting the grouting inlet end of the grouting guide pipe with grouting equipment, punching a valve, and closing the valve after grouting is finished;

and after the slurry is solidified, the outer sleeve steel pipe is screwed back to reset, and the quick grouting hole sealing device is taken out for reuse.

The beneficial effects of the invention are as follows:

(1) according to the invention, the expansion rubber pipe is expanded through the matching of the outer sleeve steel pipe and the stop head, and the expanded rubber pipe is used for isolating the drilled hole from the external environment, so that the leakage of grouting pressure is avoided, and the grouting effect is ensured; meanwhile, the expansion rubber pipe is used for isolating the grout in the drill hole from the outer sleeve steel pipe, so that the grout cannot enter between the outer sleeve steel pipe and the grouting guide pipe in the grouting process, the damage of the grout solidification to the device is avoided, and the recycling effect is ensured.

(2) According to the invention, the rotary limiting mechanism is arranged at the grouting inlet end of the grouting guide pipe, and the movement of the grouting guide pipe is prevented by the tension of the spring in the rotary limiting mechanism, so that the grouting guide pipe cannot move outwards from a drilled hole in the process of screwing in the outer sleeve steel pipe, the grouting depth cannot be changed, and the grouting effect is ensured.

(3) The bearing is sleeved and fixedly arranged on the outer sleeve steel pipe, the connection between the spring and the outer sleeve steel pipe is realized by the bearing, the spring cannot rotate along with the outer sleeve steel pipe under the action of the bearing, the winding of the spring is avoided, and the spring cannot exceed the elastic limit of the spring due to the rotary stretching is ensured.

(4) According to the invention, the bearing, the outer sleeve steel pipe and the grouting guide pipe are sleeved by the telescopic rubber hose, so that the slurry flowing out from the grouting inlet in the grouting process is prevented from entering the gap between the outer sleeve steel pipe and the grouting guide pipe and the bearing, the grouting hole sealing device is not damaged due to the solidification of the slurry, and the recycling effect of the grouting hole sealing device is ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic overall structure diagram of a rapid grouting hole sealing device for a tunnel lining structure according to one or more embodiments of the invention;

FIG. 2 is a schematic illustration of a retaining head according to one or more embodiments of the present disclosure;

FIG. 3 is a schematic illustration of an installation of an expanded rubber tube and a grouting conduit according to one or more embodiments of the invention;

FIG. 4 is a schematic illustration of an installation of a fixed bearing according to one or more embodiments of the present disclosure;

in the figure: the mutual spacing or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;

wherein, 1, grouting guide pipe; 2. a stopper; 3. expanding the rubber tube; 4. sleeving a steel pipe outside; 5. a bearing; 6. a flexible rubber hose; 7. a spring; 8. and (4) a valve.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

As introduced by the background technology, the expansion type grouting pipe used at present cannot be recycled, and the position of the grouting pipe cannot be fixed when the sleeve is screwed by hands, so that the grouting depth is changed, and the grouting effect is poor.

Example 1

In a typical embodiment of the present invention, as shown in fig. 1 to 4, a rapid grouting hole sealing device for a tunnel lining structure is provided, which comprises agrouting guide pipe 1, ajacket steel pipe 4, a hole sealing mechanism and a rotation limiting mechanism, wherein two ends of the grouting guide pipe are respectively a grouting opening and a grouting inlet, one end of thegrouting guide pipe 1 close to the grouting opening is sequentially sleeved with the hole sealing mechanism and thejacket steel pipe 4, and the other end of thegrouting guide pipe 1 is provided with the rotation limiting mechanism.

Specifically, the length of the outersleeve steel pipe 4 is smaller than that of thegrouting guide pipe 1, the outersleeve steel pipe 4 is sleeved on thegrouting guide pipe 1 and forms a sleeve structure with thegrouting guide pipe 1, threads are arranged on the outer wall of thegrouting guide pipe 1, threads are also arranged on the inner wall of the outersleeve steel pipe 4, and thegrouting guide pipe 1 and the outersleeve steel pipe 4 are rotatably connected through cooperation between the threads.

A hole sealing mechanism is arranged between thegrouting guide pipe 1 and the outersleeve steel pipe 4, and specifically, the hole sealing mechanism is composed of astop head 2 and anexpansion rubber pipe 3.

Thestop head 2 is sleeved on thegrouting guide pipe 1 and fixedly arranged, thestop head 2 is positioned at one end close to a grouting opening of thegrouting guide pipe 1, the grouting opening of thegrouting guide pipe 1 is arranged at one side of thestop head 2, and theouter steel pipe 4 is arranged at the other side of thestop head 2.

Be equipped withinflation rubber tube 3 betweenfender head 2 and theovercoat steel pipe 4,inflation rubber tube 3 cover is established on the outer wall ofslip casting pipe 1 betweenfender head 2 and theovercoat steel pipe 4, and the grout flows out from the gap between hole and the slip casting pipe during the prevention slip casting to the shutoff of hole of mainly used.

Specifically, when precession overcoatsteel pipe 4,overcoat steel pipe 4 can promote theexpansion rubber pipe 3 and remove, and the effect that blocks ofcooperation retaining head 2,expansion rubber pipe 3 can be by the extrusion inflation to block up the space between slip casting pipe and the hole, make the thick liquid can not flow from the space, and can utilize theexpansion rubber pipe 3 after the inflation to realize the fixed of slip casting hole sealing device position.

Theexpansion rubber tube 3 also plays a role in protecting the grouting hole sealing device, and after theexpansion rubber tube 3 expands, the contact between the outersleeve steel tube 4 and the grout can be blocked, so that the grout is prevented from entering a gap between the outersleeve steel tube 4 and thegrouting guide tube 1 in the grouting process, and the grouting hole sealing device is ensured to be recycled.

It will be understood that the length of the expandedrubber tube 3 is selected according to the actual hole diameter, as long as the expanded rubber tube can isolate the hole from the space outside thestopper 2, and is not limited herein.

The one end thatslip casting pipe 1 kept away from the slip casting mouth is the slip casting entry, and the slip casting entrance ofslip casting pipe 1 is equipped withvalve 8 for start-stop, the control of slip casting volume and slip casting speed of slip casting work, and rotatory stop gear sets up betweenvalve 8 and stop 2 and is close tovalve 8, mainly used restrictionslip casting pipe 1's removal.

Specifically, rotatory stop gear comprises bearing 5,scalable rubber hose 6 and spring 7, and bearing 5 cover is established atovercoat steel pipe 4 and is kept away from the one end of keeping away from dog 2 (also can understand thatovercoat steel pipe 3 is close to the one end ofslip casting pipe 1 slip casting entry), and the inner circle inner wall ofbearing 5 and the outer wall fixed connection ofovercoat steel pipe 4, and spring 7 one end is fixed to be set up on the outer wall of 1 slip casting entry end of slip casting pipe, and the other end of spring 7 and the outer wall fixed connection of bearing 5 outer lane.

The setting of spring 7 can provide the pulling force at the precession in-process of overcoatsteel pipe 4 to the slip casting entry end ofslip casting pipe 1 to avoidslip casting pipe 1 to move to the hole outward because of the precession ofovercoat steel pipe 4, guaranteed that the slip casting degree of depth can not change, and need not artificial position to slipcasting pipe 1 and restrict, simplified the operation and guaranteed positioning accuracy.

In order to guarantee that the force on the grouting inlet end of thegrouting guide pipe 1 is balanced, the springs 7 are arranged in a plurality and evenly arranged along the circumferential direction of thegrouting guide pipe 1, and the number of the springs 7 is selected according to actual requirements.

The setting ofbearing 5 can guarantee the fixed of spring 7 position for spring 7 can not rotate along withovercoat steel pipe 4, thereby has avoided the winding between a plurality of springs 7, and guarantees that spring 7 can not surpass its elasticity limit because of rotating tensile.

Atelescopic rubber hose 6 is also arranged between the spring 7 and the grouting guide pipe, and the mounting mode of thetelescopic rubber hose 6 is similar to that of the spring 7.

Thetelescopic rubber hose 6 is sleeved on thegrouting guide pipe 1 and thebearing 5, specifically, one end of thetelescopic rubber hose 6 is fixedly arranged on the outer wall of the grouting inlet end of thegrouting guide pipe 1, and the other end of thetelescopic rubber hose 6 is fixedly connected with the outer wall of the outer ring of thebearing 5.

Scalable rubber hose 6 can follow the removal ofovercoat steel pipe 4 and stretch, mainly used gets up the protection with the gap andbearing 5 betweenovercoat steel pipe 4 and theslip casting pipe 1, avoids the slip casting in-process from the slip casting entrance outflow in entering the gap and thebearing 5 betweenovercoat steel pipe 4 and theslip casting pipe 1 for slip casting hole sealing device can not be because of the solidification of thick liquid and damage, has guaranteed the used cycle of slip casting hole sealing device.

In a similar way, the position of thetelescopic rubber hose 6 can be fixed by the arrangement of thebearing 5, so that thetelescopic rubber hose 6 cannot rotate along with the outersleeve steel pipe 4, and thetelescopic rubber hose 6 cannot exceed the stretching limit thereof due to the stretching in rotation.

Example 2

In another exemplary embodiment of the present application, a method for using the rapid grouting hole sealing device for a tunnel lining structure according toembodiment 1 is provided, which includes the following specific steps:

firstly, placing the rapid grouting hole sealing device into a drill hole, so that the distance between a grouting opening and the bottom of the drill hole meets the requirement of grouting depth;

secondly, screwing in anouter steel sleeve 4, extruding theexpansion rubber tube 3 under the coordination of thestop head 2 to expand theexpansion rubber tube 3, and isolating the drilled hole from the outer space by utilizing theexpansion rubber tube 3;

then connecting the grouting inlet end of thegrouting guide pipe 1 with grouting equipment, clamping thevalve 8 for grouting, and closing thevalve 8 to stop grouting after grouting is finished;

and finally, after the slurry is solidified, the outersleeve steel pipe 4 is screwed back to reset, and the quick grouting hole sealing device is taken out for reuse.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

Translated fromChinese

1.一种隧道衬砌结构快速注浆封孔装置,其特征在于，包括注浆导管，所述注浆导管两端分别为注浆口和注浆入口，注浆导管上靠近注浆口的一端依次套接有封孔机构和外套钢管，注浆导管的另一端设有旋转限位机构；1. A tunnel lining structure rapid grouting and sealing device, characterized in that it comprises a grouting conduit, the two ends of the grouting conduit are respectively a grouting port and a grouting inlet, and one end of the grouting conduit is close to the grouting port The hole sealing mechanism and the outer steel pipe are sleeved in sequence, and the other end of the grouting conduit is provided with a rotation limit mechanism;所述旋转限位机构由轴承和弹簧构成，所述轴承固定套设在外套钢管靠近注浆入口的一端，弹簧的一端与轴承的外壁固定连接，弹簧的另一端与注浆导管注浆入口端的外壁固定连接。The rotation limiting mechanism is composed of a bearing and a spring, the bearing is fixedly sleeved on one end of the outer steel pipe near the grouting inlet, one end of the spring is fixedly connected with the outer wall of the bearing, and the other end of the spring is connected to the grouting inlet end of the grouting conduit. External wall fixed connection.2.如权利要求1所述的一种隧道衬砌结构快速注浆封孔装置,其特征在于，所述注浆导管与外套钢管之间通过螺纹连接，外套钢管长度小于注浆导管。2 . The rapid grouting and hole sealing device for tunnel lining structure according to claim 1 , wherein the grouting conduit and the outer steel pipe are connected by threads, and the length of the outer steel pipe is smaller than that of the grouting conduit. 3 .3.如权利要求1所述的一种隧道衬砌结构快速注浆封孔装置,其特征在于，所述封孔机构由挡头和膨胀橡胶管构成，所述挡头固定设置在注浆导管上靠近注浆口的一端，所述膨胀橡胶管套设在注浆导管上。3. The fast grouting hole sealing device for tunnel lining structure according to claim 1, wherein the hole sealing mechanism is composed of a stopper head and an expansion rubber tube, and the stopper head is fixedly arranged on the grouting conduit Near one end of the grouting port, the expanded rubber tube is sleeved on the grouting conduit.4.如权利要求3所述的一种隧道衬砌结构快速注浆封孔装置,其特征在于，所述膨胀橡胶管位于挡头与外套钢管之间，所述外套钢管在旋进状态下，膨胀橡胶管处于受挤压的膨胀状态。4. The fast grouting and sealing device for tunnel lining structure according to claim 3, wherein the expanded rubber tube is located between the stop head and the outer casing steel pipe, and the outer casing steel pipe expands under the precession state. The rubber tube is in a compressed and expanded state.5.如权利要求1所述的一种隧道衬砌结构快速注浆封孔装置,其特征在于，所述旋转限位机构还设有可伸缩橡胶软管，用于遮挡注浆入口溢出的浆液。5 . The rapid grouting and hole sealing device for tunnel lining structure according to claim 1 , wherein the rotation limiting mechanism is further provided with a retractable rubber hose, which is used to block the overflowing slurry from the grouting inlet. 6 .6.如权利要求5所述的一种隧道衬砌结构快速注浆封孔装置,其特征在于，可伸缩橡胶软管的一端与轴承的外壁固定连接，可伸缩橡胶软管的另一端与注浆导管注浆入口端的外壁固定连接。6. A quick grouting and sealing device for tunnel lining structure according to claim 5, wherein one end of the retractable rubber hose is fixedly connected to the outer wall of the bearing, and the other end of the retractable rubber hose is connected to the grouting The outer wall of the grouting inlet end of the conduit is fixedly connected.7.如权利要求5所述的一种隧道衬砌结构快速注浆封孔装置,其特征在于，所述可伸缩橡胶软管位于弹簧下端。7 . The rapid grouting and hole sealing device for tunnel lining structure according to claim 5 , wherein the retractable rubber hose is located at the lower end of the spring. 8 .8.如权利要求1所述的一种隧道衬砌结构快速注浆封孔装置,其特征在于，所述注浆导管的注浆入口处设有阀门，用于注浆工作的启停、注浆量及注浆速度的控制。8. The fast grouting hole sealing device for tunnel lining structure according to claim 1, wherein a valve is provided at the grouting inlet of the grouting conduit for starting and stopping of grouting work, grouting Quantity and grouting speed control.9.如权利要求1所述的一种隧道衬砌结构快速注浆封孔装置,其特征在于，所述弹簧设有若干个，沿注浆导管周向均匀设置。9 . The rapid grouting hole sealing device for tunnel lining structure according to claim 1 , wherein the springs are provided with a plurality of them, which are uniformly arranged along the circumferential direction of the grouting conduit. 10 .10.如权利要求1-9任一项所述的一种隧道衬砌结构快速注浆封孔装置的使用方法,其特征在于，具体如下：10. The using method of a tunnel lining structure quick grouting hole sealing device according to any one of claims 1-9, characterized in that, the details are as follows:将注浆导管放入钻孔内，使得注浆口与钻孔底部之间的距离满足注浆深度要求；Put the grouting conduit into the borehole so that the distance between the grouting port and the bottom of the borehole meets the grouting depth requirement;旋进外套钢管，在挡头的配合下挤压膨胀橡胶管，使得膨胀橡胶管膨胀；Screw into the outer steel pipe, and squeeze the expansion rubber tube under the cooperation of the stopper, so that the expansion rubber tube expands;将注浆导管的注浆入口端与灌浆设备连接，打卡阀门，注浆完成后关闭阀门；Connect the grouting inlet end of the grouting conduit to the grouting equipment, punch the valve, and close the valve after the grouting is completed;待浆液凝固后，旋回外套钢管将其复位，取出快速注浆封孔装置待重复使用。After the grout is solidified, the outer casing steel pipe is rotated to reset it, and the rapid grouting hole sealing device is taken out for repeated use.

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