CN105672370B - A kind of underground engineering water pressure control system - Google Patents

A kind of underground engineering water pressure control system Download PDF

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Publication number
CN105672370B
CN105672370B CN201610160422.4A CN201610160422A CN105672370B CN 105672370 B CN105672370 B CN 105672370B CN 201610160422 A CN201610160422 A CN 201610160422A CN 105672370 B CN105672370 B CN 105672370B
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China
Prior art keywords
pressure control
control system
water pressure
captation
pipe
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CN201610160422.4A
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CN105672370A (en
Inventor
顾国荣
郭星宇
陈晖�
杨砚宗
王克文
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Shanghai Changkai Geotechnical Engineering Co Ltd
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Shanghai Changkai Geotechnical Engineering Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/10Protective 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
    • E02D31/12Protective 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 kind of underground engineering water pressure control system, the water pressure control system both ends are connected to captation and outlet pipeline, it is characterized in that the water pressure control system includes at least two vertical tubes and along the spaced at least transverse tube of the vertical tube, the two vertical tube base openings are connected with the captation and the outlet pipeline respectively, each transverse tube both ends are connected with two vertical tubes respectively, and are provided with controlled valve on each transverse tube.It is an advantage of the invention that, water pressure control system is simple in construction, can effectively control the underground water head size under sole plate, it is ensured that basement sole plate hydrostatic water table is stable, quicksand, sealing be not reliable for sluicing, in addition it is simple and efficient to handle, and there is the advantages of maintenance clean facilitates.

Description

A kind of underground engineering water pressure control system
Technical field
The invention belongs to underground engineering technical field, and in particular to a kind of underground engineering water pressure control system.
Background technology
Due to the influence of underground water, hydraulic pressure is excessive, and underground engineering is often related to anti-floating problem, and anti-floating is general in engineering By setting anti-floating pile or anchor pole, increase counterweight etc. to realize.But because of uplift pile or anchor pole failure or Anti-floating design safety stock Less, superstructure load fails to apply completely, and water pressure suffered by the appearance of some engineerings is more than the situation of dead load, shows as Foundation floating, partial structurtes beam, post cracking etc., has a strong impact on the safety and normal use of underground engineering in itself.
Effective hydraulic pressure treatment measures must be taken after there is above mentioned problem, because original uplift pile or anchor pole arrangement are tight Close, quantity is more, and the method operating space reinforced by benefit anti-floating pile or the anchor pole of routine has been unsatisfactory for requiring, in addition Benefit sets anti-floating pile or anchor pole and still descends water head beyond control, it is impossible to adjusts hydraulic pressure as needed, the danger of foundation floating is still So exist, therefore there is operability, can effectively control the Novel engineering scheme of hydraulic pressure to need to be proposed.
The content of the invention
According to the deficiencies of the prior art described above, It is an object of the present invention to provide a kind of underground engineering hydraulic pressure control system System, the water pressure control system both ends connect captation and outlet pipeline respectively, by by vertical tube and positioned at different height The hydraulic pressure control pipeline that transverse tube is formed, freely to control required sluicing to depressurize size, so that it is guaranteed that underground engineering water pressure exists In controlled range.
The object of the invention is realized and completed by following technical scheme:
A kind of underground engineering water pressure control system, the water pressure control system both ends are connected to captation and gone out Water lines, it is characterised in that the water pressure control system includes at least two vertical tubes and along the vertical tube spaced at least one Transverse tube, the two vertical tube base openings are connected with the captation and the outlet pipeline respectively, each transverse tube both ends point It is not connected with two vertical tubes, and controlled valve is provided with each transverse tube.
The captation is vertically arranged collector well pipe.
The captation is made up of collector pipe, overcoat chimney filter and the filtrate that is filled between the two, described to catchment Pipe upper end is connected with the water pressure control system.
The water pressure control system is provided with non-return valve and controlled valve with the captation interface.
The captation is suitable for reading to be also associated with a well-flushing pipe, and the well-flushing pipe is provided with a controlled valve.
It is an advantage of the invention that water pressure control system is simple in construction, the underground water head under sole plate can be effectively controlled Size, it is ensured that underground engineering hydrostatic water table is stable, sluice not quicksand, sealing are reliable, simple and efficient to handle in addition, and with maintenance The advantages of easy to clean.
Brief description of the drawings
Fig. 1 is water pressure control system schematic diagram in the present invention;
Fig. 2 is filtering captation schematic diagram in the present invention.
Embodiment
The feature of the present invention and other correlated characteristics are described in further detail by embodiment below in conjunction with accompanying drawing, with It is easy to the understanding of technical staff of the same trade:
Such as Fig. 1-2, mark 10-60 is respectively in figure:Sole plate 10, basic well slot 101, seal ring 102, microdilatancy are prevented Ooze concrete 103, waterstop 104;Soil layer 11;Filter captation 20, overcoat chimney filter 201, collector pipe 202, filtrate 203;Enter Water lines 30, water inlet pipe 301, water inlet pipe 302, check valve 303, controlled valve 304, controlled valve 305, well-flushing pipe 306;Carefully Pipe 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 407th, controlled valve 408, controlled valve 409, controlled valve 410, controlled valve 411;Outlet pipeline 50, outlet pipe 501, flow 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, deeper applied to embedded depth of foundation Underground engineering in, its sole plate artesian head is larger, for sole plate anti-floating require higher, the water pressure control system By special process pore-forming, filtration underground captation is set, collector well pipe inserts close layer of sand;Structure upper is drainage channel, And it is connected with catch pit;When well head head height exceedes safe altitude, underground water is entered upper by the drainage of bottom collector well pipe Portion's drainage channel, catch pit is finally imported, the decompression that voluntarily sluices is realized, so that it is guaranteed that basement bottom board water pressure is in controlled range It is interior, to ensure bottom plate safety.
As shown in Figure 1, 2, the water pressure control system both ends in the present embodiment connect filtering captation 20 and collection respectively Puddle 60, wherein, filtering captation 20 is arranged in the lower section soil body of sole plate 10 and quantity is no less than 1 group, the present embodiment In altogether in sole plate 10 lower section set two groups;Water pressure control system is arranged at the top of sole plate 10, and its both ends is distinguished It is connected with filtering captation 20 and catch pit 60.
As shown in Figure 1, 2, filtering captation 20 is located in the soil layer 11 of the lower section of sole plate 10, and specially one vertically sets The collector well pipe put, it is made up of overcoat chimney filter 201, collector pipe 202 and the filtrate 203 that is filled in both gaps, in addition, should The tapered construction in bottom of collector well pipe, in favor of being pressed into designated depth;A well-flushing pipe is circumscribed with the upper end of collector pipe 202 306, controlled valve 305 is installed on the well-flushing pipe 306.
As shown in figure 1, water pressure control system is successively by inlet pipeline 30, hydraulic pressure control pipeline 40 and the institute of outlet pipeline 50 Composition:
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 the same as 202 connection suitable for reading of collector pipe in foregoing filtration captation 20, water inlet Branch pipe 302 is located at the side of water inlet pipe 301 and coupled logical, foregoing controlled valve 304 and check valve 303 be arranged at into In water branch pipe 302, the check valve 303 provides single flow direction, makes the underground water in water inlet pipe 301 can only be from water inlet pipe 301 to entering The direction of water branch pipe 302 is flowed, and prevents underground water reverse backflow, entrainment air from entering in water inlet pipe 301 and collector pipe 202, avoids Air produces chemical action, fouling and clogging pipeline with the mineral matter in underground water;
Hydraulic pressure control pipeline 40 is arranged at the top of sole plate 10, including two vertical tubes, 401 and 402, four transverse tubes 403-406;Wherein, the lower end of vertical tube 401 is connected with water inlet pipe 302, and the lower end of vertical tube 402 is then connected with outlet pipeline 50 Logical, each transverse tube 403-406 is vertically arranged at different height from bottom to top, and the both ends of transverse tube respectively with vertical tube 401 and vertical tube 402 are connected, and controlled valve 407-410 is respectively arranged with each transverse tube 403-406;It should be noted that in the present embodiment, it is horizontal The both ends of pipe 403 are connected with the lower end of vertical tube 401 and the lower end of vertical tube 402 respectively, and controlled valve 411 is provided with vertical tube 401, are opened Height of the closing valve 411 between transverse tube 403 and transverse tube 404;
Outlet pipeline 50 is located at the top of sole plate 10, including outlet pipe 501 and flowmeter 502, wherein, outlet pipe 501 water inlets then access the depth below of water level face 601 of catch pit 60 with the connection of the lower end of vertical tube 402, delivery port, to avoid it from going out Produce fouling due to the effect of air and mineral matter at the mouth of a river and block delivery port;Flowmeter 502 is installed on outlet pipe 501 In, to measure bleeder quantity, monitoring level of ground water and hydraulic pressure.
As shown in Figure 1, 2, the installation of water pressure control system and application method comprise the following steps in the present embodiment:
(1)Spilled water hole is opened up on the sole plate 10 of existing underground engineering to be depressurized, then on sole plate 10 Basic well slot 101 is opened up, is carried out using drilling equipment in soil layer 11 using sleeve pipe retaining wall into well operations, to set filtering to catchment Device 20, after pulling out sleeve pipe, a seal ring 102 is set around collector pipe 202 in the bottom of sole plate 10, and in sole plate 10 Top around cell wall set one circle waterstop 104, afterwards in basic well slot 101 using microdilatancy impervious concrete 103 it is extensive Multiple sole plate 10;
(2)Inlet pipeline 30, hydraulic pressure control pipeline 40, outlet pipeline 50 and catch pit 60 are set gradually afterwards, are completed The installation of sluicing depressurized system;
(3)When in use, the controlled valve 304 of inlet pipeline 30 is in opening;Converged by filtering captation 20 Collect the underground water in the lower section soil layer 11 of sole plate 10, underground water is by the filtrate between overcoat chimney filter 201 and collector pipe 202 Physical impurity in 203 filtering undergrounds;After underground water collects via collector pipe 202, the water inlet pipe in inflow inlet pipeline 30 301, water inlet pipe 302 is then gone to, after check valve 303, is continued to flow into hydraulic pressure control pipeline 40, according to required control Underground water head size, select one of them in the corresponding controlled valve 407-410 opened, then can be voltage-controlled by Groundwater Make in 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, i.e.,:
If underground water hydraulic pressure, which need to sluice, is decompressed to the height no more than transverse tube 403, closing switch valve 411, open Controlled valve 407 on transverse tube 403, make subsurface flow after transverse tube 403, flowed into through outlet pipe 501 in catch pit 60;
If underground water hydraulic pressure, which need to sluice, is decompressed to the height no more than transverse tube 404, closing switch valve 407, open Controlled valve 411 and controlled valve 408, make subsurface flow after transverse tube 404, flowed into through outlet pipe 501 in catch pit 60;
If underground water hydraulic pressure, which need to sluice, is decompressed to the height no more than transverse tube 405, closing switch valve 407 and 408, Controlled valve 411 and controlled valve 409 are opened, makes subsurface flow after transverse tube 405, catch pit 60 is flowed into through outlet pipe 501 In;
If underground water hydraulic pressure, which need to sluice, be decompressed to the height no more than transverse tube 406, closing switch valve 407,408 with And 409, controlled valve 411 and controlled valve 410 are opened, makes subsurface flow after transverse tube 406, flows into and collects through outlet pipe 501 In puddle 60;
(4)When needing to carry out well-flushing to filtering captation 20, the controlled valve 304 on closing water inlet pipe 302, together Controlled valve 305 on Shi Kaiqi well-flushings pipe 306, the lower end of tubule 31 is inserted in well-flushing pipe 306, upper end connection high-pressure hydraulic pump, Tubule 31 stretches to more than the bottom surface of collector pipe 202 of filtering captation 20 slightly, is washed by water by external high-pressure hydraulic pump to mistake Filter captation 20 and carry out well-flushing, the upper end that well-flushing pipe 306 can also be directly connected by high-pressure water pipe is washed by water to filtering collection The well-flushing of water installations 20, prevent that filtering the soil body fine grained aggregation caused by long-term use of captation 20 blocks treatment hole.
(5)When need to be to water inlet pipe 302, hydraulic pressure control pipeline 40, vertical tube 401~402, transverse tube 403~406, outlet pipe When road 50, outlet pipe 501 carry out clean and maintenance, opening and closing can be combined by controlled valve and realized.

Claims (5)

1. a kind of underground engineering water pressure control system, the water pressure control system both ends are connected to captation and water outlet Pipeline, it is characterised in that the water pressure control system is horizontal including at least two vertical tubes and along the vertical tube spaced at least one Pipe, the two vertical tube base openings are connected with the captation and the outlet pipeline respectively, each transverse tube both ends difference It is connected with two vertical tubes, and controlled valve is provided with each transverse tube.
2. a kind of underground engineering water pressure control system according to claim 1, it is characterised in that the captation is Vertically arranged collector well pipe.
A kind of 3. underground engineering water pressure control system according to claim 1 or 2, it is characterised in that the captation It is made up of collector pipe, overcoat chimney filter and the filtrate that is filled between the two, the collector pipe upper end and the hydraulic pressure control System is connected.
A kind of 4. underground engineering water pressure control system according to claim 1, it is characterised in that the hydraulic pressure control system System is provided with non-return valve and controlled valve with the captation interface.
5. a kind of underground engineering water pressure control system according to claim 1, it is characterised in that on the captation Mouth is also associated with a well-flushing pipe, and the well-flushing pipe is provided with a controlled valve.
CN201610160422.4A 2016-03-21 2016-03-21 A kind of underground engineering water pressure control system Active CN105672370B (en)

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CN201610160422.4A CN105672370B (en) 2016-03-21 2016-03-21 A kind of underground engineering water pressure control system

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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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CN105672370A CN105672370A (en) 2016-06-15
CN105672370B true CN105672370B (en) 2017-12-12

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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

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