CN105672370A - Water pressure control system for underground engineering - Google Patents
Water pressure control system for underground engineering Download PDFInfo
- Publication number
- CN105672370A CN105672370A CN201610160422.4A CN201610160422A CN105672370A CN 105672370 A CN105672370 A CN 105672370A CN 201610160422 A CN201610160422 A CN 201610160422A CN 105672370 A CN105672370 A CN 105672370A
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- Prior art keywords
- pressure control
- control system
- water
- water pressure
- captation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
Abstract
The invention discloses a water pressure control system for underground engineering. The two ends of the water pressure control system are connected with a water collecting device and a water outlet pipeline. The water pressure control system is characterized by comprising at least two vertical pipes and at least on cross pipe arranged along the vertical pipes in a spaced manner; and bottom openings of the two vertical pipes communicate with the water collecting device and the water outlet pipeline, the two ends of each cross pipe communicate with the two vertical pipes, and a switching valve is arranged on each cross pipe. The water pressure control system has the beneficial effects that the water pressure control system is simple in structure, the size of a water head of underground water below a foundation bottom plate can be effectively controlled, and it is ensured that the anti-floating water level of the basement foundation bottom plate is stable, no sand flows in the water release process, and water stop is reliable; and in addition, operation is easy, convenient and fast, and maintenance and cleaning are convenient.
Description
Technical field
The invention belongs to underground engineering technical field, be specifically related to a kind of underground engineering water pressure control system.
Background technology
Due to the impact of subsoil water, hydraulic pressure is excessive, and underground engineering often relates to anti-floating problem, and in engineering, anti-floating is typically via arranging anti-floating pile or anchor pole, increase counterweight etc. realize. But lost efficacy because of uplift pile or anchor pole or Anti-floating design safety stock was less, superstructure load fails to apply completely, there is the suffered water pressure situation more than dead load in some engineerings, show as foundation floating, partial structurtes beam, post cracking etc., have a strong impact on the safety of underground engineering itself and normally use.
Effective hydraulic pressure treatment measures must be taked after the problems referred to above occur, owing to original uplift pile or anchor pole are arranged closely, quantity is more, the method working place being undertaken reinforcing by conventional benefit anti-floating pile or anchor pole has been unsatisfactory for requirement, additionally benefit sets anti-floating pile or anchor pole still descends water head beyond control, can not regulating hydraulic pressure as required, the danger of foundation floating yet suffers from, and therefore has operability, can effectively control the Novel engineering scheme of hydraulic pressure and need to be proposed.
Summary of the invention
It is an object of the invention to according to above-mentioned the deficiencies in the prior art part, a kind of underground engineering water pressure control system is provided, these water pressure control system two ends connect captation and outlet pipeline respectively, by by vertical tube and be positioned at the hydraulic pressure control pipeline that the transverse tube of differing heights forms, freely to control the required decompression size that sluices, so that it is guaranteed that underground engineering water pressure is in controlled range.
The object of the invention realizes being completed by techniques below scheme:
A kind of underground engineering water pressure control system, described water pressure control system two ends are connected to captation and outlet pipeline, it is characterized in that described water pressure control system includes at least two vertical tubes and along the spaced at least one transverse tube of described vertical tube, described in two, vertical tube base opening is connected with described captation and described outlet pipeline respectively, each described transverse tube two ends are connected with vertical tube described in two respectively, and are provided with controlled valve on each described transverse tube.
Described captation is vertically arranged collector well pipe.
Described captation is by collector pipe, overcoat chimney filter and is filled in filtrate between the two and is formed, and described collector pipe upper end is connected with described water pressure control system.
Described water pressure control system and described captation seam are provided with non-return valve and controlled valve.
The described captation well-flushing pipe that is also associated with suitable for reading, described well-flushing pipe is provided with a controlled valve.
It is an advantage of the invention that, water pressure control system simple in construction, can effectively control the underground water head size under sole plate, it is ensured that underground engineering hydrostatic water table is stable, sluice not quicksand, sealing are reliable, in addition simple and efficient to handle, and there is the convenient advantage of maintenance clean.
Accompanying drawing explanation
Fig. 1 is water pressure control system schematic diagram in the present invention;
Fig. 2 is filtration captation schematic diagram in the present invention.
Detailed description of the invention
Inventive feature and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, in order to the understanding of technical staff of the same trade:
In Fig. 1-2, figure, labelling 10-60 is respectively as follows: sole plate 10, basis well slot 101, seal ring 102, microdilatancy impervious concrete 103, waterstop 104; Soil layer 11; Filter captation 20, overcoat chimney filter 201, collector pipe 202, filtrate 203; Inlet pipeline 30, water inlet pipe 301, water inlet pipe 302, check valve 303, controlled valve 304, controlled valve 305, well-flushing pipe 306; Tubule 31; Hydraulic pressure control pipeline 40, vertical tube 401, vertical tube 402, transverse tube 403, transverse tube 404, transverse tube 405, transverse tube 406, controlled valve 407, controlled valve 408, controlled valve 409, controlled valve 410, controlled valve 411; Outlet pipeline 50, outlet pipe 501, effusion meter 502; Catch pit 60, water level face 601.
Embodiment: the present embodiment is specifically related to a kind of underground engineering water pressure control system, it is applied in the underground engineering that embedded depth of foundation is deeper, its sole plate artesian head is bigger, anti-floating for sole plate requires higher, this water pressure control system passes through special process pore-forming, arranging filtration underground captation, collector well pipe inserts close layer of sand; Structure upper is drainage channel, and is connected with catch pit; When well head head height exceedes safe altitude, subsoil water enters top drainage channel by bottom collector well pipe drain, finally imports catch pit, it is achieved sluice decompression voluntarily, so that it is guaranteed that basement bottom board water pressure is in controlled range, to ensure base plate safety.
As shown in Figure 1, 2, water pressure control system two ends in the present embodiment connect filtration captation 20 and catch pit 60 respectively, wherein, filter captation 20 and be arranged at below sole plate 10 in the soil body and quantity is no less than 1 group, the present embodiment is arranged below two groups in sole plate 10 altogether; Water pressure control system is arranged at above sole plate 10, and its two ends are connected with filtration captation 20 and catch pit 60 respectively.
As shown in Figure 1, 2, filter captation 20 and be arranged in the soil layer 11 below sole plate 10, it is specially a vertically arranged collector well pipe, it is made up of overcoat chimney filter 201, collector pipe 202 and the filtrate 203 that is filled in both gaps, in addition, the tapered structure in bottom of this collector well pipe, is beneficial to press-in designated depth; It is circumscribed with a well-flushing pipe 306 in the upper end of collector pipe 202, this well-flushing pipe 306 is provided with controlled valve 305.
As it is shown in figure 1, water pressure control system is made up of inlet pipeline 30, hydraulic pressure control pipeline 40 and outlet pipeline 50 successively:
Inlet pipeline 30 is arranged at the top of sole plate 10, including water inlet pipe 301, water inlet pipe 302, controlled valve 304 and check valve 303;Wherein, water inlet pipe 301 is with collector pipe 202 connection suitable for reading in foregoing filtration captation 20, water inlet pipe 302 is positioned at the side of water inlet pipe 301 and coupled logical, aforesaid controlled valve 304 and check valve 303 are arranged in water inlet pipe 302, this check valve 303 provides the single flow direction, make the subsoil water in water inlet pipe 301 can only be flowed to water inlet pipe 302 direction by water inlet pipe 301, prevent subsoil water reverse backflow, entrapped air from entering in water inlet pipe 301 and collector pipe 202, air is avoided to produce chemical action, fouling and clogging pipeline with the mineral in subsoil water;
Hydraulic pressure control pipeline 40 is arranged at the top of sole plate 10, including two vertical tubes 401 and 402, four transverse tube 403-406; Wherein, the lower end of vertical tube 401 is connected with water inlet pipe 302, the lower end of vertical tube 402 is then connected with outlet pipeline 50, each transverse tube 403-406 is vertically arranged at differing heights from bottom to top, and the two ends of transverse tube connect with vertical tube 401 and vertical tube 402 respectively, each transverse tube 403-406 is respectively arranged with controlled valve 407-410; It should be noted that in the present embodiment, transverse tube 403 two ends connect with vertical tube 401 lower end and vertical tube 402 lower end respectively, and are provided with controlled valve 411 on vertical tube 401, the controlled valve 411 height between transverse tube 403 and transverse tube 404;
Outlet pipeline 50 is positioned at the top of sole plate 10, including outlet pipe 501 and effusion meter 502, wherein, outlet pipe 501 water inlet connects with vertical tube 402 lower end, water level face 601 depth below in outlet then access set puddle 60, to avoid its water outlet to produce fouling due to the effect of air and mineral and block outlet; Effusion meter 502 is installed in outlet pipe 501, in order to measure bleeder quantity, monitoring level of ground water and hydraulic pressure.
As shown in Figure 1, 2, in the present embodiment, the installation of water pressure control system and using method comprise the steps:
(1) on the sole plate 10 of existing underground engineering, offer spilled water hole to reduce pressure, then on sole plate 10, offer basis well slot 101, drilling equipment is adopted to utilize sleeve pipe retaining wall to carry out into well operations in soil layer 11, to arrange filtration captation 20, after pulling out sleeve pipe, a seal ring 102 is set around collector pipe 202 in the bottom of sole plate 10, and at the top of sole plate 10, one circle waterstop 104 is set around cell wall, adopt microdilatancy impervious concrete 103 to recover sole plate 10 in the well slot 101 of basis afterwards;
(2) set gradually inlet pipeline 30, hydraulic pressure control pipeline 40, outlet pipeline 50 and catch pit 60 after, complete the installation of sluicing depressurized system;
(3) in use, the controlled valve 304 of inlet pipeline 30 is in opening; By filtering the subsoil water that captation 20 collects below sole plate 10 in soil layer 11, the physical impurity in subsoil water filtrate 203 filtering underground between overcoat chimney filter 201 and collector pipe 202; After subsoil water collects via collector pipe 202, flow into the water inlet pipe 301 in inlet pipeline 30, then water inlet pipe 302 is gone to, after check valve 303, continue to flow in hydraulic pressure control pipeline 40, the underground water head size according to required control, select one of them in the controlled valve 407-410 of correspondence unlatching, then can by subsoil water hydraulic pressure control at height residing for its corresponding transverse tube, to reach the deadweight of reasonable balance underground engineering and the purpose of buoyancy force of underground water, it may be assumed that
If subsoil water hydraulic pressure need to be sluiced the height being decompressed to less than transverse tube 403, then closing switch valve 411, open the controlled valve 407 on transverse tube 403, make subsurface flow after transverse tube 403, flow in catch pit 60 through outlet pipe 501;
If subsoil water hydraulic pressure need to be sluiced the height being decompressed to less than transverse tube 404, then closing switch valve 407, open controlled valve 411 and controlled valve 408, make subsurface flow after transverse tube 404, flow in catch pit 60 through outlet pipe 501;
If subsoil water hydraulic pressure need to be sluiced the height being decompressed to less than transverse tube 405, then closing switch valve 407 and 408, open controlled valve 411 and controlled valve 409, make subsurface flow after transverse tube 405, flow in catch pit 60 through outlet pipe 501;
If subsoil water hydraulic pressure need to be sluiced the height being decompressed to less than transverse tube 406, then closing switch valve 407,408 and 409, open controlled valve 411 and controlled valve 410, make subsurface flow after transverse tube 406, flow in catch pit 60 through outlet pipe 501;
(4) when filtration captation 20 is carried out well-flushing by needs, close the controlled valve 304 on water inlet pipe 302, open the controlled valve 305 on well-flushing pipe 306 simultaneously, tubule 31 lower end is inserted in well-flushing pipe 306, upper end connects high-pressure hydraulic pump, tubule 31 stretches to more than collector pipe 202 bottom surface filtering captation 20 slightly, well-flushing is carried out to filtering captation 20 by external high-pressure hydraulic pump bath, can also directly be undertaken washing by water to filtering captation 20 well-flushing by the upper end of high-pressure water pipe connection well-flushing pipe 306, prevent filtering captation 20 and block treatment hole because life-time service causes soil body fine grained to assemble.
(5) when being carried out safeguarding to water inlet pipe 302, hydraulic pressure control pipeline 40, vertical tube 401～402, transverse tube 403～406, outlet pipeline 50, outlet pipe 501, controlled valve combination opening and closing can be passed through and realize.
Claims (5)
1. a underground engineering water pressure control system, described water pressure control system two ends are connected to captation and outlet pipeline, it is characterized in that described water pressure control system includes at least two vertical tubes and along the spaced at least one transverse tube of described vertical tube, described in two, vertical tube base opening is connected with described captation and described outlet pipeline respectively, each described transverse tube two ends are connected with vertical tube described in two respectively, and are provided with controlled valve on each described transverse tube.
2. a kind of underground engineering water pressure control system according to claim 1, it is characterised in that described captation is vertically arranged collector well pipe.
3. a kind of underground engineering water pressure control system according to claim 1 and 2, it is characterized in that described captation by collector pipe, overcoat chimney filter and is filled in filtrate between the two and is formed, described collector pipe upper end is connected with described water pressure control system.
4. a kind of underground engineering water pressure control system according to claim 1, it is characterised in that described water pressure control system and described captation seam are provided with non-return valve and controlled valve.
5. a kind of underground engineering water pressure control system according to claim 1, it is characterised in that the described captation well-flushing pipe that is also associated with suitable for reading, described well-flushing pipe is provided with a controlled valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160422.4A CN105672370B (en) | 2016-03-21 | 2016-03-21 | A kind of underground engineering water pressure control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160422.4A CN105672370B (en) | 2016-03-21 | 2016-03-21 | A kind of underground engineering water pressure control system |
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| Publication Number | Publication Date |
|---|---|
| CN105672370A true CN105672370A (en) | 2016-06-15 |
| CN105672370B CN105672370B (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610160422.4A Active CN105672370B (en) | 2016-03-21 | 2016-03-21 | A kind of underground engineering water pressure control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018006185A1 (en) * | 2016-07-05 | 2018-01-11 | 章致一 | Device for controlling excess pore water pressure in rock and soil layer |
| CN107794954A (en) * | 2017-09-15 | 2018-03-13 | 合肥工业大学 | A kind of anti-floating sluicing pressure relief |
| CN112982463A (en) * | 2021-02-24 | 2021-06-18 | 中国十七冶集团有限公司 | System and method for reducing buoyancy of underground engineering |
| CN116840125A (en) * | 2023-07-05 | 2023-10-03 | 长安大学 | Device and method for testing water permeability anisotropy of road base granule |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2876183Y (en) * | 2006-03-29 | 2007-03-07 | 河海大学 | Open slot inner pipe pressure expanding type pressure reducing well pipe |
| KR100753556B1 (en) * | 2006-03-31 | 2007-08-30 | 박옥교 | De-pressure drainage method and the system |
| CN101139841A (en) * | 2006-09-04 | 2008-03-12 | 洪钟堙 | Apparatus for draining subsurface water |
| CN205530389U (en) * | 2016-03-21 | 2016-08-31 | 上海长凯岩土工程有限公司 | Water pressure control system for underground works |
-
2016
- 2016-03-21 CN CN201610160422.4A patent/CN105672370B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2876183Y (en) * | 2006-03-29 | 2007-03-07 | 河海大学 | Open slot inner pipe pressure expanding type pressure reducing well pipe |
| KR100753556B1 (en) * | 2006-03-31 | 2007-08-30 | 박옥교 | De-pressure drainage method and the system |
| CN101139841A (en) * | 2006-09-04 | 2008-03-12 | 洪钟堙 | Apparatus for draining subsurface water |
| CN205530389U (en) * | 2016-03-21 | 2016-08-31 | 上海长凯岩土工程有限公司 | Water pressure control system for underground works |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018006185A1 (en) * | 2016-07-05 | 2018-01-11 | 章致一 | Device for controlling excess pore water pressure in rock and soil layer |
| CN107794954A (en) * | 2017-09-15 | 2018-03-13 | 合肥工业大学 | A kind of anti-floating sluicing pressure relief |
| CN112982463A (en) * | 2021-02-24 | 2021-06-18 | 中国十七冶集团有限公司 | System and method for reducing buoyancy of underground engineering |
| CN116840125A (en) * | 2023-07-05 | 2023-10-03 | 长安大学 | Device and method for testing water permeability anisotropy of road base granule |
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| Publication number | Publication date |
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| CN105672370B (en) | 2017-12-12 |
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