CN107806083B - Soft soil foundation reinforcement treatment water collection strong drainage device - Google Patents
Soft soil foundation reinforcement treatment water collection strong drainage device Download PDFInfo
- Publication number
- CN107806083B CN107806083B CN201710867112.0A CN201710867112A CN107806083B CN 107806083 B CN107806083 B CN 107806083B CN 201710867112 A CN201710867112 A CN 201710867112A CN 107806083 B CN107806083 B CN 107806083B
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- Prior art keywords
- water collecting
- water
- soft soil
- collecting pipe
- collecting tube
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 167
- 239000002689 soil Substances 0.000 title claims abstract description 42
- 230000002787 reinforcement Effects 0.000 title claims abstract description 14
- 239000011148 porous material Substances 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims abstract description 9
- 239000012466 permeate Substances 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 4
- 210000003437 trachea Anatomy 0.000 claims description 4
- 238000007596 consolidation process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a strong water collecting and draining device for soft soil foundation reinforcement treatment, which comprises a permeable filter tube, a water collecting tube and a water collecting cylinder body, wherein the bottom end of the water collecting tube is provided with a one-way valve, the inner cavity of the water collecting tube is provided with a partition piece, the inner cavity of the water collecting tube at the bottom end of a pressurizing air tube is communicated with the inner cavity of the water collecting tube, the top end of the pressurizing air tube extends out to be connected with a booster pump, the top end of the water collecting tube is connected with an extending drain pipe, under the action of water pressure difference between the inner cavity of the water collecting tube and surrounding soft soil, pore water in soft soil enters an annular cavity through the permeable filter tube and enters the water collecting tube through the one-way valve, when the water level in the water collecting tube is higher, the booster pump works, the pressure of the water is boosted to the lower part of the inner cavity of the water collecting tube through the pressurizing air tube, so that the partition piece is upwards moved, and water gathered in the upper part of the inner cavity of the water collecting tube is outwards discharged through the drain pipe, thereby reducing the water level in the water collecting tube, forming water pressure difference again, repeating in this way, and forming pulse drainage, and achieving the effect of rapid drainage consolidation of soft soil foundation from top to bottom.
Description
Technical Field
The invention relates to the technical field of soft soil foundation reinforcement engineering, in particular to a water collecting and strong draining device for soft soil foundation reinforcement treatment.
Background
In the prior art, soft soil foundation reinforcement is usually carried out by adopting a pre-pressing drainage consolidation method, wherein the pre-pressing drainage consolidation method mainly comprises a vacuum pre-pressing method and a preloading pre-pressing method, when soft soil foundation reinforcement treatment is carried out by adopting the vacuum pre-pressing method or the preloading pre-pressing method and the like, a vertical sand well or a drainage plate is generally arranged in the soft soil foundation to serve as a drainage channel, drainage consolidation occurs under the dead load of the preloading materials or the pre-pressing of the vacuum load, so that pore water in the soft soil foundation is discharged outwards through the drainage channel, the pore water pressure is slowly dissipated, the effective stress is slowly increased, the foundation strength is gradually increased, and the foundation consolidation settlement is mostly eliminated in the construction period, thereby improving the bearing capacity of the soft soil foundation and reducing post-construction settlement.
However, when the pile-load pre-compaction or the vacuum pre-compaction is performed, the generation and the transmission of stress difference in soft soil are slow, and the lower soft soil consolidation is difficult to be realized rapidly. The problems of long construction period, high construction cost, large sedimentation amplitude after construction and the like are caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing the soft soil foundation reinforcement treatment water collection strong drainage device which can realize rapid drainage consolidation and reduce the construction period.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a soft soil foundation consolidates and handles strong drainage device of catchment, including inserting the filter tube that permeates water that reaches the soft soil foundation that treats and the water collecting pipe of suit in the filter tube that permeates water, there is annular cavity between filter tube and the water collecting pipe that permeates water, the filter tube bottom that permeates water is connected with the water collecting cylinder, the water collecting pipe bottom is equipped with the check valve and has predetermined distance with the water collecting cylinder bottom, the water collecting pipe inner chamber is equipped with the separator that is used for separating into upper and lower two parts with the water collecting pipe inner chamber, there is little clearance between separator and the water collecting pipe inner wall, be located permeate water outside the filter tube bottom and the pressure boost trachea that the water collecting pipe inner chamber lower part is linked together, the pressure boost trachea top stretches out and links to each other with the booster pump, the water collecting pipe top is connected with the drain pipe that stretches out.
Further, a bracket for supporting the partition is provided in the inner cavity of the water collecting pipe so that a predetermined distance is provided between the partition and the check valve.
Further, the top end of the water collecting cylinder body is higher than the bottom end of the water collecting pipe.
Further, the water permeable filter tube wall array is distributed with water permeable pore channels and is coated with a water permeable filter membrane.
Further, the top end of the water collecting pipe extends out and is connected with a vacuum pump.
The beneficial effects are that: in this soft soil foundation consolidates processing catchment strong drainage device, filter tube permeates water and catchment pipe is beaten into the soft soil foundation after, owing to there is water pressure difference between catchment pipe inner chamber and the weak soil around, pore water in the weak soil, under the effect of water pressure difference, permeate water in the filter tube gets into annular cavity and get into the catchment pipe through the check valve, when the water level is higher in the catchment pipe makes water pressure difference reduce, booster pump work, the partial pressure boost under the water-collecting pipe inner chamber is gone up to the partition piece, will gather the water extrusion outside the drain pipe at the water-collecting pipe inner chamber, reduce the water level in the water-collecting pipe, thereby form water pressure difference again between water-collecting pipe inner chamber and weak soil around, make pore water ooze again from soft soil and flow into the water-collecting pipe in, so repeatedly, form pulsed drainage, reach the effect of soft soil foundation from top to bottom quick drainage concretion.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the present invention.
Detailed Description
Referring to fig. 1, the strong water drainage device for soft soil foundation reinforcement treatment of the present invention comprises a water permeable filter pipe 10 inserted into a soft soil foundation to be treated and a water collecting pipe 20 sleeved in the water permeable filter pipe 10, wherein the water permeable filter pipe 10 is composed of rigid pipes, water permeable pore canals are distributed on the pipe wall in an array manner and are covered with a water permeable filter membrane on the outer wall, an annular cavity 11 is arranged between the water permeable filter pipe 10 and the water collecting pipe 20, pore water in the soft soil foundation can permeate into the annular cavity 11 through the water permeable filter membrane, the bottom of the water permeable filter pipe 10 is connected with a water collecting cylinder 30, the bottom wall and the side wall of the water collecting cylinder 30 are sealed and watertight, and the water collecting cylinder 30 and the water permeable filter pipe 10 can be formed into a whole; of course, the diameter of the permeable filtering tube 10 can be designed to be smaller than that of the water collecting cylinder 30, the bottom of the permeable filtering tube 10 is inserted into the water collecting cylinder 30, the side wall of the bottom of the permeable filtering tube 10 is provided with a permeable slotted hole so that water flow can flow radially, the bottom end of the water collecting tube 20 is provided with a one-way valve 21 and a preset distance from the bottom end of the water collecting cylinder 30, the one-way valve 21 only enables water or air to enter the inner cavity of the water collecting tube 20 from bottom to top, but not flow reversely, and water permeated into the annular cavity 11 is converged in the water collecting cylinder 30 and enters the water collecting tube 20 through the one-way valve 21. Wherein the top of the water collecting cylinder 30 is higher than the bottom of the water collecting pipe 20, i.e. higher than the check valve 21.
The inner cavity of the water collecting pipe 20 is provided with a separating piece 22 capable of moving up and down, a tiny gap exists between the separating piece 22 and the inner wall of the water collecting pipe 20, the separating piece 22 is not in sealing connection, the inner cavity of the water collecting pipe 20 is divided into an upper part and a lower part, a pressurizing air pipe 23 with the bottom end communicated with the lower part of the inner cavity of the water collecting pipe 20 is arranged outside the water permeable filter pipe 10, the bottom end of the pressurizing air pipe 23 sequentially penetrates through the water permeable filter pipe 10, the water collecting cylinder 30 is in sealing connection with the water collecting pipe 20, the connecting position is located between the separating piece 22 and the one-way valve 21, and preferably, the inner cavity of the water collecting pipe 20 is provided with a bracket (not shown) for supporting the separating piece, and the bracket enables the separating piece 22 and the one-way valve 21 to have a preset distance. The top end of the pressurizing air pipe 23 extends out to be connected with an external pressurizing pump (not shown), the pressurizing pump works, the pressurizing air flow pressurizes the lower part of the inner cavity of the water collecting pipe 20 through the pressurizing air pipe 23, the partitioning piece 22 is driven to move upwards under the action of the pressurizing air flow, although a tiny gap exists between the partitioning piece 22 and the inner wall of the water collecting pipe 20, and the pressurizing air flow can not flow out through the tiny gap under the instant pressurizing action due to the tiny gap is small, and the pressurizing air flow can still drive the partitioning piece 22 to move upwards.
The top end of the water collecting pipe 20 is connected with a drain pipe 24 which extends outwards, when the water level in the water collecting pipe 20 is higher, the partition 22 moves upwards, and the water in the upper part of the inner cavity of the water collecting pipe 20 can be extruded and pushed to be discharged outwards through the drain pipe 24.
The concrete working process of the water collecting and strong drainage device for reinforcing the soft soil foundation is as follows: after the permeable filter tube 10 and the water collecting tube 20 are driven into the soft soil foundation, as no water exists in the inner cavity of the water collecting tube 20, strong water pressure difference is generated between the inner cavity of the water collecting tube 20 and surrounding soft soil, under the action of the water pressure difference, pore water enters the annular cavity 11 through the permeable filter tube 10 and flows into the water collecting tube 30 from top to bottom, the pore water is converged in the water collecting tube 30, the water level continuously rises, then enters the inner cavity of the water collecting tube 20 through the one-way valve 21, when the water level in the water collecting tube 20 gradually rises to reduce the water pressure difference, the booster pump works, the booster pump pressurizes the lower part of the inner cavity of the water collecting tube 20 through the booster pipe 23, so that the partition 22 moves upwards, the water in the inner cavity of the water collecting tube 20 is discharged outwards through the drain pipe 24, the water level in the water collecting tube 20 is reduced, the water pressure difference is formed between the inner cavity of the water collecting tube 20 and surrounding soft soil again, the pore water is enabled to flow into the water collecting tube 20 from the soft soil again, the repeated in such a manner, the water is continuously discharged outwards, and the water in the water collecting tube 20 is concentrated continuously, the soft soil foundation is rapidly solidified, and the effect of water is achieved.
Referring to fig. 2, of course, the strong water collecting and draining device for soft soil foundation reinforcement treatment of the present invention may also be used in cooperation with a vacuum preloading drainage consolidation system, specifically, the top end of the water collecting pipe 20 is connected with a vacuum pipe, and is connected with an external vacuum pump (not shown), when the vacuum pump works, negative pressure can be generated in the inner cavity of the water collecting pipe 20, so that pore water in the soft soil foundation is quickly drained into the water collecting pipe 20 under the dual effects of water pressure difference and negative pressure, and the time for pore water seepage to enter the water collecting pipe 20 is shortened, thereby shortening the whole drainage consolidation construction period and improving the construction efficiency.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (5)
1. The utility model provides a soft soil foundation consolidates and handles strong drainage device of catchmenting which characterized in that: including inserting the filter tube that permeates water that reaches the weak soil foundation that treats and the water collecting pipe of suit in the filter tube that permeates water, there is annular cavity between filter tube and the water collecting pipe that permeates water, the filter tube bottom that permeates water is connected with the water collecting cylinder, the water collecting pipe bottom is equipped with the check valve and has predetermined distance with the water collecting cylinder bottom, the water collecting pipe inner chamber is equipped with the separator that is used for dividing into upper and lower two parts with the water collecting pipe inner chamber, there is little clearance between separator and the water collecting pipe inner wall, be located permeate water outside the filter tube bottom is linked together with the water collecting pipe inner chamber lower part's pressure boost trachea, the pressure boost trachea top stretches out and links to each other with the booster pump, the water collecting pipe top is connected with the drain pipe that stretches out.
2. The strong water collecting and draining device for soft soil foundation reinforcement treatment according to claim 1, wherein: a bracket for supporting the partition member is arranged in the inner cavity of the water collecting pipe so that a preset distance is reserved between the partition member and the one-way valve.
3. The strong water collecting and draining device for soft soil foundation reinforcement treatment according to claim 1, wherein: the top of the water collecting cylinder is higher than the bottom of the water collecting pipe.
4. The strong water collecting and draining device for soft soil foundation reinforcement treatment according to claim 1, wherein: the wall array of the water permeable filter tube is provided with water permeable pore channels and is coated with a water permeable filter membrane.
5. The strong water collecting and draining device for soft soil foundation reinforcement treatment according to claim 1, wherein: the top end of the water collecting pipe extends out and is connected with a vacuum pump.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710867112.0A CN107806083B (en) | 2017-09-22 | 2017-09-22 | Soft soil foundation reinforcement treatment water collection strong drainage device |
| PCT/CN2017/107911 WO2019056473A1 (en) | 2017-09-22 | 2017-10-27 | Enhanced catchment drainage device for soft soil foundation reinforcement treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710867112.0A CN107806083B (en) | 2017-09-22 | 2017-09-22 | Soft soil foundation reinforcement treatment water collection strong drainage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107806083A CN107806083A (en) | 2018-03-16 |
| CN107806083B true CN107806083B (en) | 2024-05-14 |
Family
ID=61584461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710867112.0A Active CN107806083B (en) | 2017-09-22 | 2017-09-22 | Soft soil foundation reinforcement treatment water collection strong drainage device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107806083B (en) |
| WO (1) | WO2019056473A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681046B (en) * | 2020-12-26 | 2022-08-26 | 中国民用航空飞行学院 | Airport roadbed drainage structure |
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| JP2002242170A (en) * | 2001-02-16 | 2002-08-28 | Hazama Gumi Ltd | Foundation improvement work by vacuum consolidation |
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2017
- 2017-09-22 CN CN201710867112.0A patent/CN107806083B/en active Active
- 2017-10-27 WO PCT/CN2017/107911 patent/WO2019056473A1/en active Application Filing
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| JP2002242170A (en) * | 2001-02-16 | 2002-08-28 | Hazama Gumi Ltd | Foundation improvement work by vacuum consolidation |
| CN1865601A (en) * | 2005-05-16 | 2006-11-22 | 胡鸣群 | Compact consolidation drainage method for soft ground and collector well pipe therefor |
| CN200964580Y (en) * | 2006-10-31 | 2007-10-24 | 韩凤来 | Plugging-proof checking type water drainer |
| CN101082216A (en) * | 2007-07-13 | 2007-12-05 | 柳自道 | Soft soil foundation pipe-embedded vacuum drainage method |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019056473A1 (en) | 2019-03-28 |
| CN107806083A (en) | 2018-03-16 |
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