CN105625483B - A kind of underground engineering hydraulic pressure control method - Google Patents
A kind of underground engineering hydraulic pressure control method Download PDFInfo
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- CN105625483B CN105625483B CN201610160425.8A CN201610160425A CN105625483B CN 105625483 B CN105625483 B CN 105625483B CN 201610160425 A CN201610160425 A CN 201610160425A CN 105625483 B CN105625483 B CN 105625483B
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- hydraulic pressure
- pressure control
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- pipeline
- transverse tube
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- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000001914 filtration Methods 0.000 claims abstract description 29
- 239000002689 soil Substances 0.000 claims abstract description 9
- 238000011010 flushing procedure Methods 0.000 claims description 19
- 210000005239 tubule Anatomy 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000002706 hydrostatic effect Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000007667 floating Methods 0.000 description 9
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 206010016825 Flushing Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of underground engineering hydraulic pressure control method, the hydraulic pressure control method comprises the following steps：At least one set of filtering captation is set in soil layer below the sole plate of the underground engineering；One hydraulic pressure control pipeline is set above the sole plate, the hydraulic pressure control pipeline connected with the filtering captation, the hydraulic pressure control pipeline includes some transverse tubes being vertically spaced apart；Controlled and required according to head height, the transverse tube for corresponding to the head height in the hydraulic pressure control pipeline is kept path, and make remaining described transverse tube shut-off, transverse tube discharge of the underground water through being opened in the hydraulic pressure control pipeline.It is an advantage of the invention that the hydraulic pressure control method depressurizes by sluicing, the underground water head size under sole plate can be effectively controlled, it is ensured that basement sole plate hydrostatic water table is stable, sluice not quicksand, sealing are reliable, and has the advantages of maintenance clean facilitates.
Description
Technical field
The invention belongs to underground engineering technical field, and in particular to a kind of underground engineering hydraulic pressure control method.
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 side
Method, the hydraulic pressure control method is by setting hydraulic pressure control pipeline, freely to control required sluicing to depressurize size, so that it is guaranteed that underground
Room water inrush coefficient is in controlled range.
The object of the invention is realized and completed by following technical scheme：
A kind of underground engineering hydraulic pressure control method, it is characterised in that the hydraulic pressure control method comprises the following steps：
At least one set of filtering captation is set below the sole plate of the underground engineering in soil layer；Set above the sole plate
A hydraulic pressure control pipeline is put, the hydraulic pressure control pipeline is connected with the filtering captation, the hydraulic pressure control pipeline bag
Include some transverse tubes being vertically spaced apart；Controlled and required according to head height, made in the hydraulic pressure control pipeline described in correspondence
The transverse tube of head height keeps path, and makes remaining described transverse tube shut-off, and underground water in the hydraulic pressure control pipeline through opening
The transverse tube discharge opened.
The hydraulic pressure control pipeline includes at least two vertical tubes and along spaced at least two transverse tube of the vertical tube, wherein
The one vertical tube lower end is as water inlet with the filtering captation connection, and another vertical tube lower end is as delivery port, respectively
The transverse tube both ends are connected with two vertical tubes respectively, and are provided with controlled valve on each transverse tube.
The filtering captation is vertically arranged collector well pipe.
The filtering captation is made up of collector pipe, overcoat chimney filter and the filtrate that is filled between the two, described
Collector pipe upper end is connected through the sole plate with hydraulic pressure control pipeline.
It is connected between the hydraulic pressure control pipeline and the filtering captation through inlet pipeline, in the inlet pipeline
It is provided with non-return valve and controlled valve.
Captation is suitable for reading is also associated with a well-flushing pipe for the filtering, and the well-flushing pipe is provided with a controlled valve；Right
When the filtering captation carries out well-flushing, the hydraulic pressure control pipeline is turned off, opens the switch valve on the well-flushing pipe
Door, the tubule that one, which is connected, high-pressure hydraulic pump stretch to the filtering captation bottom, open the high-pressure hydraulic pump and through institute
The water outlet of tubule high pressure is stated to carry out well-flushing to the filtering captation.
It is an advantage of the invention that the hydraulic pressure control method depressurizes by sluicing, the underground under sole plate can be effectively controlled
Water head size, it is ensured that basement sole plate hydrostatic water table is stable, sluice not quicksand, sealing are reliable, easy to operate fast in addition
Victory, and there is the advantages of maintenance clean facilitates.
Brief description of the drawings
Fig. 1 is the hydraulic pressure control Method And Principle schematic diagram of underground engineering in the present invention；
Fig. 2 is the schematic diagram for carrying out well-flushing in the present invention to filtering captation.
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 hydraulic pressure control method, is buried applied to basement
In deeper existing building, the sole plate artesian head of building is larger, requires higher for the anti-floating of sole plate,
The hydraulic pressure control method sets filtration underground captation, collector well pipe inserts close layer of sand by special process pore-forming；In structure
Portion is hydraulic pressure control pipeline, and is connected with catch pit；When well head head height exceedes safe altitude, underground water passes through bottom collection
Well Tube Drain enters top Water pressure controlled tubulation road, finally imports catch pit, the decompression that voluntarily sluices is realized, so that it is guaranteed that basement
Water inrush coefficient is in controlled range, to ensure sole plate safety.
As shown in Figure 1, 2, underground engineering hydraulic pressure control method specifically comprises the following steps in the present embodiment：
（1）Some positions are selected on the sole plate 10 of existing building and open up basic well slot 101, using drilling equipment
Carried out in soil layer 11 using sleeve pipe retaining wall into well operations, to set filtering captation in the lower section soil layer of sole plate 10
20, after pulling out sleeve pipe, a seal ring 102 is set around collector pipe 202 in the bottom of sole plate 10, and on the top of sole plate 10
Portion sets a circle waterstop 104 around cell wall, recovers base using microdilatancy impervious concrete 103 in basic well slot 101 afterwards
Plinth bottom plate 10；
Wherein, it is specially a vertically arranged collector well pipe to filter captation 20, by overcoat chimney filter 201, collector pipe 202
And the filtrate 203 being filled in both gaps forms, in addition, the tapered construction in the bottom of the collector well pipe, in favor of pressure
Enter the specified soil depth of the lower section of sole plate 10；A well-flushing pipe 306 is circumscribed with the upper end of collector pipe 202, the well-flushing pipe 306
On controlled valve 305 is installed；
（2）Catch pit 60 is dug in the opening position close to sole plate 10；
（3）In the top of sole plate 10 arrangement installation drainage pressure-reducing pipeline, 20 same catch pit of captation will be filtered
60 are connected, and the drainage pressure-reducing pipeline 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 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 as water inlet with water inlet pipe 302, and the lower end of vertical tube 402 is as water outlet
Mouth is connected with outlet pipeline 50, and each transverse tube 403-406 is vertically arranged at different height, and the both ends of transverse tube point from bottom to top
Do not connected with vertical tube 401 and vertical tube 402, controlled valve 407-410 is respectively arranged with each transverse tube 403-406；Need what is illustrated
It is that in the present embodiment, the both ends of transverse tube 403 connect with the lower end water inlet of vertical tube 401 and the lower end delivery port of vertical tube 402 respectively, and
Controlled valve 411, height of the controlled valve 411 between transverse tube 403 and transverse tube 404 are provided with vertical tube 401；
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；
（4）When sluice decompression, the controlled valve 304 of inlet pipeline 30 is in opening；Catchmented by filtering
Device 20 collects the underground water in the lower section soil layer 11 of sole plate 10, and underground water passes through between overcoat chimney filter 201 and collector pipe 202
The filtering underground of filtrate 203 in physical impurity；After underground water collects via collector pipe 202, flow into inlet pipeline 30
Water inlet pipe 301, water inlet pipe 302 is then gone to, after check valve 303, continued to flow into hydraulic pressure control pipeline 40, according to institute
The underground water head size that need to be controlled, select one of them in the corresponding controlled valve 407-410 opened, then can be by underground water
Sluicing is decompressed to the residing height of its corresponding transverse tube, to reach the purpose of reasonable balance building structure deadweight and buoyancy force of underground water, i.e.,：
If underground water, which need to sluice, is decompressed to the height no more than transverse tube 403, closing switch valve 411, transverse tube is opened
Controlled valve 407 on 403, make subsurface flow after transverse tube 403, flowed into through outlet pipe 501 in catch pit 60；
If underground water, which need to sluice, is decompressed to the height no more than transverse tube 404, closing switch valve 407, switch is opened
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, which need to sluice, is decompressed to the height no more than transverse tube 405, closing switch valve 407 and 408, open
Controlled valve 411 and controlled valve 409, make subsurface flow after transverse tube 405, flowed into through outlet pipe 501 in catch pit 60；
If underground water, which need to sluice, be decompressed to the height no more than transverse tube 406, closing switch valve 407,408 and
409, controlled valve 411 and controlled valve 410 are opened, makes subsurface flow after transverse tube 406, flows into and catchments through outlet pipe 501
In hole 60；
（5）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；
（6）When need to water inlet pipe 302, relief line 40, vertical tube 401~402, transverse tube 403~406, outlet pipeline 50,
When outlet pipe 501 carries out clean and maintenance, opening and closing can be combined by controlled valve and realized.
Claims (5)
1. a kind of underground engineering hydraulic pressure control method, it is characterised in that the hydraulic pressure control method comprises the following steps：Institute
State and at least one set of filtering captation is set below the sole plate of underground engineering in soil layer；Set above the sole plate
One hydraulic pressure control pipeline, the hydraulic pressure control pipeline is connected with the filtering captation, the hydraulic pressure control pipeline includes
At least two vertical tubes and along spaced at least two transverse tubes of the vertical tube, wherein a vertical tube lower end is as the same institute of water inlet
State filtering captation connection, another vertical tube lower end as delivery port, each transverse tube both ends respectively with two vertical tubes
It is connected, and controlled valve is provided with each transverse tube；Controlled and required according to head height, made in the hydraulic pressure control pipeline
The transverse tube of the corresponding head height keeps path, and makes remaining described transverse tube shut-off, and underground water is through the hydraulic pressure control
The transverse tube discharge opened in pipeline.
2. a kind of underground engineering hydraulic pressure control method according to claim 1, it is characterised in that described to filter the dress that catchments
It is set to vertically arranged collector well pipe.
3. a kind of underground engineering hydraulic pressure control method according to claim 1 or 2, it is characterised in that the filtering is catchmented
Device is made up of collector pipe, overcoat chimney filter and the filtrate that is filled between the two, and the base is run through in the collector pipe upper end
Plinth bottom plate is connected with hydraulic pressure control pipeline.
A kind of 4. underground engineering hydraulic pressure control method according to claim 1, it is characterised in that the Water pressure controlled tubulation
It is connected between road and the filtering captation through inlet pipeline, non-return valve and switch valve is provided with the inlet pipeline
Door.
5. a kind of underground engineering hydraulic pressure control method according to claim 1, it is characterised in that described to filter the dress that catchments
Put it is suitable for reading be also associated with a well-flushing pipe, the well-flushing pipe is provided with a controlled valve；Washed to the filtering captation
During well, the hydraulic pressure control pipeline is turned off, opens the controlled valve on the well-flushing pipe, one, which is connected, high-pressure hydraulic pump
Tubule stretches to the filtering captation bottom, opens the high-pressure hydraulic pump and through the tubule high pressure water outlet with to the mistake
Filter captation and carry out well-flushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160425.8A CN105625483B (en) | 2016-03-21 | 2016-03-21 | A kind of underground engineering hydraulic pressure control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160425.8A CN105625483B (en) | 2016-03-21 | 2016-03-21 | A kind of underground engineering hydraulic pressure control method |
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| Publication Number | Publication Date |
|---|---|
| CN105625483A CN105625483A (en) | 2016-06-01 |
| CN105625483B true CN105625483B (en) | 2017-11-21 |
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| CN201610160425.8A Active CN105625483B (en) | 2016-03-21 | 2016-03-21 | A kind of underground engineering hydraulic pressure control method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503364A (en) * | 2017-09-26 | 2017-12-22 | 中国科学院武汉岩土力学研究所 | Underground water depressurizes drainage arrangement and underground water decompression drainage system |
| CN108680236A (en) * | 2018-07-12 | 2018-10-19 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of method and device for preventing underground structure from anti-floating failure occur |
| CN109580374A (en) * | 2019-01-03 | 2019-04-05 | 同济大学 | Evaluate the continuous wall trench underground of layer of sand containing artesian water Centrifugal Model Test for Stability device |
| CN113250249B (en) * | 2021-05-17 | 2022-02-08 | 四川康久美建筑工程有限公司 | Construction method of existing building anti-floating system based on embedded self-advancing anchor rod |
| CN113944179B (en) * | 2021-10-31 | 2023-05-09 | 北京中岩大地科技股份有限公司 | Construction method of pumping drainage dewatering structure of existing basement |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| KR100710920B1 (en) * | 2006-09-04 | 2007-04-25 | 홍종인 | Apparatus for draining subsurface water |
| CN200996153Y (en) * | 2006-10-13 | 2007-12-26 | 中联工程顾问股份有限公司 | Water-pressure reducing structure of base board |
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Denomination of invention: A Water Pressure Control Method for Underground Engineering Effective date of registration: 20231115 Granted publication date: 20171121 Pledgee: Bank of Shanghai Limited by Share Ltd North Branch Pledgor: SHANGHAI CHANGKAI GEOTECHNICAL ENGINEERING Co.,Ltd. Registration number: Y2023310000742 |