技术领域technical field
本发明属于注浆试验技术领域，特别涉及一种一维微生物注浆加固粉土试验的装置及方法。The invention belongs to the technical field of grouting test, in particular to a device and method for one-dimensional microbial grouting reinforcement silt test.
背景技术Background technique
随着目前我国现代化进程的加快，在沿海城市建设的过程中，有大量的软土地基需要处理。注浆可对松软地层进行原位加固并改变其固有的物理力学性质，所以它广泛的应用于土木建筑工程中，现有的注浆系统多针对实际注浆操作和砂土注浆，对于实验室内粉土等性质较差的土体注浆实验的研究有一定的限制。With the acceleration of my country's modernization process, a large number of soft soil foundations need to be dealt with during the construction of coastal cities. Grouting can strengthen the soft strata in situ and change its inherent physical and mechanical properties, so it is widely used in civil engineering. The existing grouting systems are mostly aimed at actual grouting operations and sand grouting. For experiments There are certain limitations in the research of grouting experiments on soils with poor properties such as indoor silt.
进入21世纪以来，学科间交叉在处理一些前沿问题上展现出了强大的竞争力，利用微生物可以在多孔介质中生长、运移和繁殖等特性进行土体改性，不仅是全新的理论突破和技术创新，而且对生态环境和可持续发展将带来深远的影响。现有研究表明，微生物与周围环境介质间相互作用可以极大改善土体强度、刚度和渗透性等宏观力学性质周芳琴等探讨了由于环境因素变化诱发的微生物对坝基岩土体工程性质的影响。Fischer等发现巴氏芽胞杆菌（BacillusPasteurii）在砂土中可较快析出具有胶结作用的碳酸钙沉淀。然而目前大都数关于微生物加固土体的研究仅限于加固砂土，对微生物加固粉土的研究较少。但是现有研究表明利用微生物代谢产物对粉土进行工程改性，渗透试验及无侧限抗压强度试验表明相应工程指标均能得到显著改善。所以微生物加固粉土的研究前景非常广阔Since the beginning of the 21st century, interdisciplinarity has shown strong competitiveness in dealing with some cutting-edge issues. Using the characteristics of microorganisms to grow, migrate and reproduce in porous media for soil modification is not only a new theoretical breakthrough and Technological innovation will have a profound impact on the ecological environment and sustainable development. Existing studies have shown that the interaction between microorganisms and the surrounding environmental medium can greatly improve the macroscopic mechanical properties of soil such as strength, stiffness and permeability. Zhou Fangqin et al. discussed the influence of microorganisms induced by changes in environmental factors on the engineering properties of dam foundation rock and soil. Fischer et al. found that Bacillus Pasteurii can quickly precipitate calcium carbonate precipitates with cementation in sandy soil. However, most of the researches on soil reinforcement by microbes are limited to sandy soils, and there are few researches on silt soils by microbes. However, existing studies have shown that microbial metabolites are used for engineering modification of silt, and penetration tests and unconfined compressive strength tests show that the corresponding engineering indicators can be significantly improved. Therefore, the research prospect of microbial reinforcement of silt is very broad.
现有的室内试验注浆多为砂土注浆实验装置，且多为单向压力注浆，尚无复合压力注浆的实验装置用于粉土注浆加固实验。由于土体渗透系数较低，粉土注浆采用压力注浆的效果并不理想。由于实际工程的局限性，压力灌浆的注浆扩散半径的研究相对较难。Most of the existing indoor test grouting devices are sand grouting experimental devices, and most of them are unidirectional pressure grouting. There is no experimental device for compound pressure grouting for silt grouting reinforcement experiments. Due to the low permeability coefficient of soil, the effect of pressure grouting for silt grouting is not ideal. Due to the limitations of actual engineering, it is relatively difficult to study the grouting diffusion radius of pressure grouting.
发明内容Contents of the invention
发明目的：针对上述现有技术中存在的问题和不足，本发明提供一种一维微生物注浆加固粉土试验的装置及方法，从而可以提高注浆效果，加快土体处理的进程。Purpose of the invention: Aiming at the problems and deficiencies in the above-mentioned prior art, the present invention provides a device and method for one-dimensional microbial grouting reinforcement silt test, so as to improve the grouting effect and speed up the process of soil treatment.
技术方案：为实现上述目的，本发明采用的技术方案为：Technical scheme: in order to achieve the above object, the technical scheme adopted in the present invention is:
一种一维微生物注浆加固粉土试验的装置，包括模型槽4、压力供浆装置、回收桶5、水气分离装置6和真空泵7，所述压力供浆装置包括空气压力装置1和胶结液瓶3，所述模型槽4的顶部通过软管2连接胶结液瓶3，胶结液瓶3在通过软管2连接空气压力装置1，所述模型槽4的底部通过软管2分别连接回收桶5和水气分离装置6，所述水气分离装置6连接真空泵7，所述回收桶5上还连接有负压控制表8；所述模型槽4的顶部设置有盖板10，模型槽4内下端设置有带有若干个孔13的隔板11，且隔板11上铺设有滤纸12。A device for one-dimensional microbial grouting reinforcement silt test, including a model tank 4, a pressure slurry supply device, a recovery bucket 5, a water-gas separation device 6 and a vacuum pump 7, and the pressure slurry supply device includes an air pressure device 1 and a cementing Liquid bottle 3, the top of the model tank 4 is connected to the cementing liquid bottle 3 through the hose 2, the cementing liquid bottle 3 is connected to the air pressure device 1 through the hose 2, and the bottom of the model tank 4 is respectively connected to the recovery tube through the hose 2 Bucket 5 and water-gas separation device 6, described water-gas separation device 6 is connected with vacuum pump 7, is also connected with negative pressure control meter 8 on the described recycle bucket 5; The top of described model tank 4 is provided with cover plate 10, and model tank The lower end of the 4 is provided with a partition 11 with several holes 13, and a filter paper 12 is laid on the partition 11.
进一步的，所述模型槽4、回收桶5和水气分离装置6通过三通9相连。Further, the model tank 4 , the recovery bucket 5 and the water-gas separation device 6 are connected through a tee 9 .
进一步的，所述模型槽4顶部为外壁上设置有外螺纹，外螺纹旋进高度为10mm，外螺纹上装有盖板10，盖板10有机玻璃承压层厚度为10mm，且内有2mm厚的橡胶垫片，以保证模型槽4与盖板10之间的密封性；由于加了橡胶垫片，故实际旋进深度约为8mm。Further, the top of the model tank 4 is provided with an external thread on the outer wall, the screw-in height of the external thread is 10mm, and the cover plate 10 is installed on the external thread, the thickness of the plexiglass pressure-bearing layer of the cover plate 10 is 10mm, and there is a thickness of 2mm inside. The rubber gasket is used to ensure the sealing between the model groove 4 and the cover plate 10; due to the addition of the rubber gasket, the actual screw-in depth is about 8mm.
进一步的，所述模型槽4底部通过排水管连通回收桶5。Further, the bottom of the model tank 4 is connected to the recovery bucket 5 through a drain pipe.
进一步的，所述胶结液瓶3与空气压力装置1和模型槽4相接的软管2上均设置有双通14，且胶结液瓶3与空气压力装置1相接的软管2伸入胶结液瓶3内。Further, the hose 2 connecting the cementing liquid bottle 3 with the air pressure device 1 and the model tank 4 is provided with a double-way 14, and the flexible pipe 2 connecting the cementing liquid bottle 3 with the air pressure device 1 extends into In the cementing solution bottle 3.
进一步的，所述模型槽4为圆柱体模型槽。Further, the model tank 4 is a cylindrical model tank.
进一步的，所述模型槽4和隔板11的材质均为有机玻璃。Further, the mold tank 4 and the separator 11 are made of organic glass.
优选的，所述模型槽4的内腔直径为50mm，高为150mm；所述盖板10的厚度为20mm。Preferably, the cavity diameter of the mold tank 4 is 50mm, and the height is 150mm; the thickness of the cover plate 10 is 20mm.
一种一维微生物注浆加固粉土试验的方法，包括以下步骤：A method for one-dimensional microbial grouting reinforcement silt test, comprising the following steps:
步骤一、首先将土样和菌液搅拌均匀，并将其填充于模型槽4内的滤纸12上，盖紧盖板10；Step 1. Stir the soil sample and the bacterial solution evenly, fill them on the filter paper 12 in the model tank 4, and cover the cover plate 10 tightly;
步骤二、将模型槽4、压力供浆装置、水气分离装置6和真空泵7用软管2连接，并将回收桶5接于模型槽4的底部，将胶结液注入胶结液瓶3中；Step 2, connect the model tank 4, the pressure slurry supply device, the water-gas separation device 6 and the vacuum pump 7 with a hose 2, and connect the recovery bucket 5 to the bottom of the model tank 4, and inject the cementing liquid into the cementing liquid bottle 3;
步骤三、调节空气压力装置1和负压控制表8的压力至预定值；最后开启空气压力装置1和真空泵7，进行压力注浆；Step 3, adjust the pressure of the air pressure device 1 and the negative pressure control gauge 8 to a predetermined value; finally turn on the air pressure device 1 and the vacuum pump 7 to perform pressure grouting;
步骤四、待软管2中的胶结液全部进入模型槽4内，关闭真空泵7，空气压力装置1仍保持开启一段时间，以保证撤掉压力后胶结液不会回流；Step 4. After all the cementing liquid in the hose 2 enters the model tank 4, turn off the vacuum pump 7, and keep the air pressure device 1 open for a period of time to ensure that the cementing liquid will not flow back after the pressure is removed;
步骤五、重复步骤三和四若干次，将土样取出，检测加固效果。Step 5, repeat steps 3 and 4 several times, take out the soil sample, and check the reinforcement effect.
有益效果：与现有技术相比，本发明具有以下优点：Beneficial effect: compared with the prior art, the present invention has the following advantages:
正负压力均可调节，可研究不同压力注浆的注浆效果，通过正负压复合注浆的方法使得胶结液更加均匀的分布在土体中，加固效果更加均匀；注浆效率明显提高；且操作简单、方便实用。鉴于以往粉土注浆效果不理想的现状，本发明采用上压下吸的方法对粉土进行注浆，所述模型槽上部设计一抗压钢罩，下部设有一块带孔玻璃板，带孔玻璃板上放置滤纸，从而在带孔玻璃板下面所加得真空压力能够均匀分布在土体下表面。利用该装置对粉土进行注浆加固实验，可以设置各种菌液、不同压力等条件下的微生物加固土体效果的实验；操作简单、方便实用。The positive and negative pressure can be adjusted, and the grouting effect of different pressure grouting can be studied. Through the method of positive and negative pressure combined grouting, the cementing fluid is more evenly distributed in the soil, and the reinforcement effect is more uniform; the grouting efficiency is significantly improved; And the operation is simple, convenient and practical. In view of the unsatisfactory current situation of silt grouting in the past, the present invention adopts the method of pressing up and sucking down to grout the silt. A pressure-resistant steel cover is designed on the upper part of the model tank, and a glass plate with holes is arranged on the lower part, with Filter paper is placed on the perforated glass plate, so that the vacuum pressure applied under the perforated glass plate can be evenly distributed on the lower surface of the soil. Using the device to perform grouting reinforcement experiments on silt, it is possible to set up experiments on the effect of microbial reinforcement on soil under various bacterial liquids and different pressures; the operation is simple, convenient and practical.
附图说明Description of drawings
图1是本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2是本发明中模型槽的结构示意图；Fig. 2 is the structural representation of model groove among the present invention;
图3是本发明中多孔板的结构示意图；Fig. 3 is the structural representation of perforated plate in the present invention;
图4是本发明中胶结液瓶的结构示意图；Fig. 4 is the structural representation of cementing liquid bottle among the present invention;
其中：1-空气压力装置，2-软管，3-胶结液瓶，4-模型槽，5-回收桶，6-水气分离装置，7-真空泵，8-负压控制表，9-三通，10-盖子，11-隔板，12-滤纸，13-孔，14-双通。Among them: 1- air pressure device, 2- hose, 3- cementing liquid bottle, 4- model tank, 5- recovery bucket, 6- water and gas separation device, 7- vacuum pump, 8- negative pressure control table, 9- three Pass, 10-cover, 11-separator, 12-filter paper, 13-hole, 14-double pass.
具体实施方式detailed description
下面结合实施例对本发明作更进一步的说明。Below in conjunction with embodiment the present invention will be further described.
本发明的原理为：常规微生物加固土体灌浆条件下，由于粉土渗透性差，难以在较短的时间内灌浆完毕，而导致灌浆时中途堵塞，无法完成灌浆。空气压力灌浆装置的作用是提供100kPa左右的压力，以提供胶结液下渗的渗透力，使得注浆更加快速，有效。而抽真空装置则在模型槽4下部形成80kPa左右的负压，亦可加速胶结液的下渗速率，提高注浆效率。The principle of the present invention is: under the grouting condition of the conventional microbe-reinforced soil, due to the poor permeability of the silt, it is difficult to complete the grouting in a relatively short period of time, resulting in a blockage in the middle of the grouting, and the grouting cannot be completed. The function of the air pressure grouting device is to provide a pressure of about 100kPa to provide the penetrating force of the cementing fluid to seep down, making the grouting faster and more effective. The vacuum device forms a negative pressure of about 80kPa in the lower part of the model tank 4, which can also accelerate the infiltration rate of the cementing liquid and improve the grouting efficiency.
如图1-4所示，一种一维微生物注浆加固粉土试验的装置，包括模型槽4、压力供浆装置、回收桶5、水气分离装置6和真空泵7，所述压力供浆装置包括空气压力装置1和胶结液瓶3，所述模型槽4的顶部通过软管2连接胶结液瓶3，胶结液瓶3在通过软管2连接空气压力装置1，所述模型槽4的底部通过软管2分别连接回收桶5和水气分离装置6，所述水气分离装置6连接真空泵7，所述回收桶5上还连接有负压控制表8；所述模型槽4的顶部设置有盖板10，所述盖板10为抗压钢罩，模型槽4内下端设置有带有若干个孔13的隔板11，且隔板11上铺设有滤纸12，从而在带孔隔板下面所加得真空压力能够均匀分布在土体下表面。As shown in Figures 1-4, a device for one-dimensional microbial grouting reinforcement silt test includes a model tank 4, a pressure slurry supply device, a recovery bucket 5, a water-air separation device 6, and a vacuum pump 7. The pressure slurry supply The device includes an air pressure device 1 and a cementing liquid bottle 3, the top of the model tank 4 is connected to the cementing liquid bottle 3 through a hose 2, the cementing liquid bottle 3 is connected to the air pressure device 1 through the hose 2, and the model tank 4 The bottom is respectively connected to the recovery bucket 5 and the water-gas separation device 6 through the hose 2, the water-gas separation device 6 is connected to the vacuum pump 7, and the recovery bucket 5 is also connected to a negative pressure control meter 8; the top of the model tank 4 A cover plate 10 is provided, and the cover plate 10 is a pressure-resistant steel cover. The lower end of the mold tank 4 is provided with a partition 11 with several holes 13, and a filter paper 12 is laid on the partition 11, so that the partition with holes The vacuum pressure added under the plate can be evenly distributed on the lower surface of the soil.
所述模型槽4、回收桶5和水气分离装置6通过三通9相连，所述模型槽4底部通过排水管连通回收桶5。The model tank 4, the recovery bucket 5 and the water-air separation device 6 are connected through a tee 9, and the bottom of the model tank 4 is connected to the recovery bucket 5 through a drain pipe.
所述模型槽4顶部为外壁上设置有外螺纹，外螺纹旋进高度为10mm，外螺纹上装有盖板10，盖板10有机玻璃承压层厚度为10mm，且内有2mm厚的橡胶垫片，以保证模型槽4与盖板10之间的密封性；由于加了橡胶垫片，实际旋进深度约为8mm。The top of the model tank 4 is provided with an external thread on the outer wall, the screw-in height of the external thread is 10mm, and a cover plate 10 is installed on the external thread. The thickness of the pressure-bearing layer of the organic glass of the cover plate 10 is 10mm, and there is a rubber pad with a thickness of 2mm inside. sheet to ensure the sealing between the model groove 4 and the cover plate 10; due to the addition of rubber gaskets, the actual screw-in depth is about 8mm.
所述胶结液瓶3与空气压力装置1和模型槽4相接的软管2上均设置有双通14，且胶结液瓶3与空气压力装置1相接的软管2伸入胶结液瓶3内。The hose 2 connecting the cementing liquid bottle 3 with the air pressure device 1 and the model tank 4 is provided with a double pass 14, and the flexible pipe 2 connecting the cementing liquid bottle 3 with the air pressure device 1 extends into the cementing liquid bottle within 3.
所述模型槽4为圆柱体模型槽，模型槽4和隔板11的材质均为有机玻璃，所述模型槽4下部由一块多孔的有机玻璃板隔开，以保证下部抽真空的均匀性。The model tank 4 is a cylinder model tank, and the material of the model tank 4 and the dividing plate 11 is organic glass, and the bottom of the model tank 4 is separated by a porous organic glass plate to ensure the uniformity of vacuuming at the bottom.
所述模型槽4的内腔直径为50mm，高为150mm；所述盖板10的厚度为20mm。The cavity diameter of the mold tank 4 is 50 mm, and the height is 150 mm; the thickness of the cover plate 10 is 20 mm.
一种一维微生物注浆加固粉土试验的方法，包括以下步骤：A method for one-dimensional microbial grouting reinforcement silt test, comprising the following steps:
步骤一、土样制备：用烘干后的土样加入水，制成含水率为5%的土样；Step 1, soil sample preparation: add water to the dried soil sample to make a soil sample with a moisture content of 5%;
步骤二、菌液搅拌：在土样中加入体积为土体总孔隙体积50%-80%的菌液，搅拌均匀；Step 2. Stirring of the bacterial solution: add a bacterial solution whose volume is 50%-80% of the total pore volume of the soil to the soil sample, and stir evenly;
步骤三、土样装入模型槽：将一塑料薄板弯成圆柱形，切割成与模型槽4内部高度一致，并将卷曲的塑料薄板的底面与滤纸用胶带固定连接，再将其放入模型槽4中；将加入菌液后的土样装填入模型槽4内，每填3cm左右高度的土样，用工具对土体进行适当压实，以防止最后土体过松而计算所需土量无法完全填入模型槽4中，最后盖紧盖板10；Step 3. Put the soil sample into the model tank: bend a plastic thin plate into a cylindrical shape, cut it to be consistent with the height inside the model tank 4, and connect the bottom surface of the curled plastic thin plate to the filter paper with adhesive tape, and then put it into the model In tank 4; fill the soil sample after adding the bacterial solution into the model tank 4, fill the soil sample with a height of about 3 cm, and use tools to properly compact the soil to prevent the final soil from being too loose and the calculation required The amount of soil cannot be completely filled in the model groove 4, and finally the cover plate 10 is tightly covered;
步骤四、连接设备：将压力供浆装置、水气分离装置6和真空泵7用软管2连接，并将回收桶5接于模型槽4的底部，并检查个设备及其之间的气密性和牢固程度，由于整个管路系统中均有压力，所以气密性很重要，各个部件及软管的连接处都应缠一圈水胶带；Step 4. Connecting equipment: Connect the pressure slurry supply device, the water-air separation device 6 and the vacuum pump 7 with a hose 2, and connect the recovery bucket 5 to the bottom of the model tank 4, and check the airtightness between each device and the vacuum pump 7 Due to the pressure in the entire pipeline system, the airtightness is very important, and a circle of water tape should be wrapped around the connection of each component and hose;
步骤五、将胶结液注入胶结液瓶3中；Step 5, inject the cementing liquid into the cementing liquid bottle 3;
步骤六、注浆：首先在加压前真空泵7先空载预热5分钟；然后调节空气压力装置1和负压控制表8的压力至预定值；最后开启空气压力装置1和真空泵7，进行压力注浆；模型槽4上部以空气压力灌浆，同时下部以抽真空形成负压，加速胶结液的下渗速率。Step 6. Grouting: first, preheat the vacuum pump 7 without load for 5 minutes before pressurizing; then adjust the pressure of the air pressure device 1 and the negative pressure control meter 8 to a predetermined value; finally turn on the air pressure device 1 and the vacuum pump 7 to carry out Pressure grouting; the upper part of the model tank 4 is grouted with air pressure, while the lower part is vacuumed to form a negative pressure to accelerate the infiltration rate of the cementing liquid.
步骤七、待软管2中的胶结液全部进入模型槽4内，关闭真空泵7，空气压力装置1仍保持开启一段时间，以保证撤掉压力后胶结液不会回流；Step 7. After all the cementing liquid in the hose 2 enters the model tank 4, turn off the vacuum pump 7, and keep the air pressure device 1 open for a period of time to ensure that the cementing liquid will not flow back after the pressure is removed;
步骤八、根据试验计划进行若干次注浆后，将塑料薄板连带着土样抽出，检测加固效果。Step 8: After grouting several times according to the test plan, take out the plastic sheet together with the soil sample to test the reinforcement effect.
所述步骤三中土样装入模型槽还可以采用以下方式：先将滤纸放入模型槽4下部的隔板11上，再将土体和菌液搅拌均匀后填入模型槽内，再在土体上放一层滤纸，最后拧紧盖板10。In said step 3, the soil sample can also be loaded into the model tank in the following manner: first filter paper is put into the partition plate 11 at the bottom of the model tank 4, and then the soil and the bacterial liquid are stirred evenly and then filled into the model tank, and then placed in the model tank. Put one layer of filter paper on the soil body, and finally tighten the cover plate 10.
以上所述仅是本发明的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also possible. It should be regarded as the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467436.0ACN106153860B (en) | 2016-06-24 | 2016-06-24 | A kind of device and method of one-dimensional microorganism grouting and reinforcing silt test |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467436.0ACN106153860B (en) | 2016-06-24 | 2016-06-24 | A kind of device and method of one-dimensional microorganism grouting and reinforcing silt test |
| Publication Number | Publication Date |
|---|---|
| CN106153860Atrue CN106153860A (en) | 2016-11-23 |
| CN106153860B CN106153860B (en) | 2019-03-22 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610467436.0AExpired - Fee RelatedCN106153860B (en) | 2016-06-24 | 2016-06-24 | A kind of device and method of one-dimensional microorganism grouting and reinforcing silt test |
| Country | Link |
|---|---|
| CN (1) | CN106153860B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970181A (en)* | 2017-04-07 | 2017-07-21 | 河海大学 | A kind of drainage consolidation test device and method of grouting behind shaft or drift lining slurries in the earth formation |
| CN107064472A (en)* | 2017-03-29 | 2017-08-18 | 河海大学 | The experimental rig and test method of a kind of microorganism grouting and reinforcing cylinder sand sample |
| CN107255705A (en)* | 2017-07-24 | 2017-10-17 | 河海大学 | Microbial grouting test device and test method for uniform solidification of silt |
| CN108911605A (en)* | 2018-08-13 | 2018-11-30 | 重庆科技学院 | A kind of method that microorganism induction precipitation of calcium carbonate produces prefabricated drainage pipeline under subnormal ambient |
| CN109708941A (en)* | 2019-02-01 | 2019-05-03 | 贵州大学 | A kind of test device and test method for microbial solidified soil |
| CN109827823A (en)* | 2019-03-18 | 2019-05-31 | 四川农业大学 | A test device and method of use for cementing rock joint surface in stages by fluid |
| CN109959773A (en)* | 2019-04-01 | 2019-07-02 | 合肥工业大学 | A test device and method for demoulding microbial grouting to reinforce silt |
| CN110082506A (en)* | 2019-05-20 | 2019-08-02 | 南华大学 | A test reaction device and test reaction method |
| CN111334419A (en)* | 2020-03-27 | 2020-06-26 | 中山大学 | Microbial reinforcement reaction device, system and method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000028605A (en)* | 1998-07-14 | 2000-01-28 | Yamatake Corp | Lysimeter |
| JP2003049418A (en)* | 2001-08-06 | 2003-02-21 | Maruyama Kogyo Kk | Vacuum soil testing machine |
| CN101451986A (en)* | 2008-11-27 | 2009-06-10 | 浙江大学 | Novel slurry filling imitation device |
| CN103335876A (en)* | 2013-06-24 | 2013-10-02 | 河海大学 | Remoulding soft clay sample preparation device and method based on vacuum combined electron-osmosis effect |
| CN103336105A (en)* | 2013-06-18 | 2013-10-02 | 浙江工业大学 | Soft foundation treatment experiment device and method |
| CN103411869A (en)* | 2013-07-26 | 2013-11-27 | 合肥工业大学 | Negative pressure osmosis test device |
| CN103926394A (en)* | 2014-04-30 | 2014-07-16 | 山东大学 | Three-dimensional visible testing system and method of dynamic water grouting model |
| CN104264719A (en)* | 2014-09-03 | 2015-01-07 | 上海大学 | Vacuum preloading indoor model testing apparatus |
| CN104458425A (en)* | 2014-11-07 | 2015-03-25 | 西安建筑科技大学 | Grouting effect evaluation device for geotechnical engineering |
| CN105649003A (en)* | 2016-01-11 | 2016-06-08 | 河海大学 | Reinforcing device for reinforcing sand foundation through combination of microorganisms with vacuum drainage and reinforcing method of reinforcing device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000028605A (en)* | 1998-07-14 | 2000-01-28 | Yamatake Corp | Lysimeter |
| JP2003049418A (en)* | 2001-08-06 | 2003-02-21 | Maruyama Kogyo Kk | Vacuum soil testing machine |
| CN101451986A (en)* | 2008-11-27 | 2009-06-10 | 浙江大学 | Novel slurry filling imitation device |
| CN103336105A (en)* | 2013-06-18 | 2013-10-02 | 浙江工业大学 | Soft foundation treatment experiment device and method |
| CN103335876A (en)* | 2013-06-24 | 2013-10-02 | 河海大学 | Remoulding soft clay sample preparation device and method based on vacuum combined electron-osmosis effect |
| CN103411869A (en)* | 2013-07-26 | 2013-11-27 | 合肥工业大学 | Negative pressure osmosis test device |
| CN103926394A (en)* | 2014-04-30 | 2014-07-16 | 山东大学 | Three-dimensional visible testing system and method of dynamic water grouting model |
| CN104264719A (en)* | 2014-09-03 | 2015-01-07 | 上海大学 | Vacuum preloading indoor model testing apparatus |
| CN104458425A (en)* | 2014-11-07 | 2015-03-25 | 西安建筑科技大学 | Grouting effect evaluation device for geotechnical engineering |
| CN105649003A (en)* | 2016-01-11 | 2016-06-08 | 河海大学 | Reinforcing device for reinforcing sand foundation through combination of microorganisms with vacuum drainage and reinforcing method of reinforcing device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064472A (en)* | 2017-03-29 | 2017-08-18 | 河海大学 | The experimental rig and test method of a kind of microorganism grouting and reinforcing cylinder sand sample |
| CN106970181A (en)* | 2017-04-07 | 2017-07-21 | 河海大学 | A kind of drainage consolidation test device and method of grouting behind shaft or drift lining slurries in the earth formation |
| CN107255705A (en)* | 2017-07-24 | 2017-10-17 | 河海大学 | Microbial grouting test device and test method for uniform solidification of silt |
| CN108911605A (en)* | 2018-08-13 | 2018-11-30 | 重庆科技学院 | A kind of method that microorganism induction precipitation of calcium carbonate produces prefabricated drainage pipeline under subnormal ambient |
| CN108911605B (en)* | 2018-08-13 | 2020-07-17 | 重庆科技学院 | Method for producing prefabricated drainage pipeline by microorganism-induced calcium carbonate precipitation in negative pressure environment |
| CN109708941A (en)* | 2019-02-01 | 2019-05-03 | 贵州大学 | A kind of test device and test method for microbial solidified soil |
| CN109827823A (en)* | 2019-03-18 | 2019-05-31 | 四川农业大学 | A test device and method of use for cementing rock joint surface in stages by fluid |
| CN109827823B (en)* | 2019-03-18 | 2023-10-31 | 四川农业大学 | Test device capable of adopting fluid to stage cementing rock joint surface and use method |
| CN109959773A (en)* | 2019-04-01 | 2019-07-02 | 合肥工业大学 | A test device and method for demoulding microbial grouting to reinforce silt |
| CN109959773B (en)* | 2019-04-01 | 2021-07-13 | 合肥工业大学 | A test device and method for demoulding microbial grouting to reinforce silt |
| CN110082506A (en)* | 2019-05-20 | 2019-08-02 | 南华大学 | A test reaction device and test reaction method |
| CN111334419A (en)* | 2020-03-27 | 2020-06-26 | 中山大学 | Microbial reinforcement reaction device, system and method |
| Publication number | Publication date |
|---|---|
| CN106153860B (en) | 2019-03-22 |
| Publication | Publication Date | Title |
|---|---|---|
| CN106153860A (en) | A kind of device and method of one-dimensional microorganism grouting and reinforcing silt test | |
| CN106644625B (en) | A test method based on a low-strength microbial calcareous sand triaxial sample preparation device | |
| CN105527384B (en) | A kind of grouting simulation test device and its test method | |
| CN102707034B (en) | Indoor model testing device and testing method employing air-pressure splitting vacuum preloading method | |
| CN204898658U (en) | Be used for consolidating little biological glue knot sand pile of soft soil foundation | |
| CN106353480B (en) | The test method of the cementing fine grained soil of microorganism under negative pressure | |
| CN105891085A (en) | MICP (microbiologically induced calcium carbonate precipitation) cementing test device | |
| CN109323902A (en) | A kind of test device and test method for microbial cementation reinforcement of loess sample | |
| CN102733371B (en) | Closed direct-sucking sectional vacuum preloading foundation treatment method | |
| CN107356463A (en) | Microorganism grouting technique consolidates the laboratory testing rig and test method of residual soil | |
| CN111454726B (en) | Microbial capsule and construction technology applied to reinforcement of dangerous rock mass | |
| CN102493494A (en) | Method for sealing vertical cracks of basement concrete structures by using microbial grouting | |
| CN106771083B (en) | Microorganism reinforced sand column grouting device and test method thereof | |
| CN209182122U (en) | A test device for microbial gelation and reinforcement of loess samples | |
| CN109959773A (en) | A test device and method for demoulding microbial grouting to reinforce silt | |
| CN104452736B (en) | An intermittent vacuum preloading device and method for treating soft ground | |
| CN114370275A (en) | A bedrock anchor-grouting anti-seepage support structure and construction method thereof | |
| CN207197898U (en) | Microorganism grouting technique consolidates the laboratory testing rig of residual soil | |
| CN113155567A (en) | Hollow cylinder sample MICP curing sample preparation instrument and sample preparation method | |
| CN207193946U (en) | Utilize the device of microorganism induction generation calcium carbonate soil mass consolidation | |
| CN112816362A (en) | Variable multifunctional grouting and foundation reinforcing experimental equipment and method | |
| CN205301298U (en) | Slip casting analogue test device | |
| CN215004581U (en) | Sample preparation device based on activated carbon adsorption microorganism reinforcement sand | |
| CN111735702A (en) | A test device and test method for microbial gelation repairing natural loess joints | |
| CN108911605B (en) | Method for producing prefabricated drainage pipeline by microorganism-induced calcium carbonate precipitation in negative pressure environment |
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | Inventor after:Liu Zhiming Inventor after:Li Qimeng Inventor after:Yang Simeng Inventor after:Zhang Chaoxian Inventor after:Zhang Chengzhou Inventor after:Peng Jie Inventor before:Liu Zhiming Inventor before:Li Qimeng Inventor before:Yang Simeng Inventor before:Du Junyang Inventor before:Zhang Chaoxian Inventor before:Zhang Chengzhou Inventor before:Peng Jie | |
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20190322 | |
| CF01 | Termination of patent right due to non-payment of annual fee |