CN215053135U - Water-rich area foundation ditch electric osmosis water-proof wall - Google Patents
Water-rich area foundation ditch electric osmosis water-proof wall Download PDFInfo
- Publication number
- CN215053135U CN215053135U CN202023219174.7U CN202023219174U CN215053135U CN 215053135 U CN215053135 U CN 215053135U CN 202023219174 U CN202023219174 U CN 202023219174U CN 215053135 U CN215053135 U CN 215053135U
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- electroosmosis
- water
- electroosmotic
- block
- wall
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000005370 electroosmosis Methods 0.000 claims abstract description 82
- 230000005540 biological transmission Effects 0.000 claims description 21
- 239000003673 groundwater Substances 0.000 abstract description 25
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a rich water area foundation ditch electric osmosis bulkhead, include: the electroosmosis wall comprises a plurality of electroosmosis plates, the electroosmosis plates are arranged at the bottom of a foundation pit to be excavated at intervals, each electroosmosis plate comprises a plurality of electroosmosis blocks which are spliced with each other, each electroosmosis block comprises a frame and two conductive plates, the top and the bottom of the frame are respectively provided with one conductive plate, the conductive plate positioned at the top of the frame is an anode plate, and the other conductive plate is a cathode plate; and a power supply device electrically connected with the electroosmosis wall through a power line. The electroosmosis wall comprises a plurality of electroosmosis plates, the electroosmosis plates are arranged at the bottom of the foundation pit to be excavated at intervals, and each electroosmosis plate comprises a plurality of electroosmosis blocks which are spliced with each other; and a power supply device electrically connected with the electroosmosis wall through a power line. Adopt the utility model discloses an electroosmosis wall can switch on waterproofly when the foundation ditch excavation, avoids excessive pump drainage groundwater, and after the outage, the groundwater flow direction of recoverable effectively protects the groundwater resource.
Description
Technical Field
The utility model relates to a construction technical field, in particular to rich water area foundation ditch electric osmosis bulkhead.
Background
The traditional water-rich pressure-bearing area generally adopts the side wall of a foundation pit to arrange a waterproof curtain when water is prevented, the waterproof curtain is combined with a support, underground water in the range of the foundation pit is separated from underground water systems outside the foundation pit to form an independent water area, and a dewatering well is adopted to pump, drain and dewater in the dewatering process. However, karst fracture water is often widely distributed in areas with more underground water, karst channels at the bottom of a foundation pit are complex and sometimes have thinner water-resisting layers, so that the water-resisting effect at the bottom of the foundation pit is poor, the traditional water-stopping curtain needs to be combined with the water-stopping curtain and the foundation pit internal and external simultaneous precipitation in order to achieve the effect of the precipitation at the bottom of the foundation pit, the hydraulic gradient is formed, the underground water level is lower than the bottom of the foundation pit to meet the construction requirement, but the method needs to continuously pump and discharge the underground water, huge waste is caused to underground water resources, huge hidden danger is brought to areas needing underground water protection, a large amount of energy is consumed to continuously pump and discharge the underground water, excessive waste of underground water resources is also caused, overlarge ground surface settlement can be caused in the process of excessively pumping and discharging the underground water, and the influence on peripheral buildings is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rich water area foundation ditch electroosmosis bulkhead to overcome current foundation ditch and adopt the precipitation mode of constantly extracting groundwater in succession, cause huge extravagant shortcoming to groundwater resources.
In order to achieve the above object, the utility model provides a rich water area foundation ditch electroosmosis bulkhead, include: the electroosmosis wall comprises a plurality of electroosmosis plates, the plurality of electroosmosis plates are arranged at the bottom of a foundation pit to be excavated at intervals, each electroosmosis plate comprises a plurality of electroosmosis blocks which are spliced with each other, each electroosmosis block comprises a frame and two conductive plates, the top and the bottom of the frame are respectively provided with one conductive plate, the conductive plate positioned at the top of the frame is an anode plate, and the other conductive plate is a cathode plate; and a power supply device electrically connected with the electroosmosis wall through a power line.
Preferably, in the above technical solution, each of the electroosmosis blocks is connected to the power transmission line, the power transmission line includes an anode power transmission line and a cathode power transmission line, the anode plate of each of the electroosmosis blocks is connected to the anode power transmission line, the cathode plate is connected to the cathode power transmission line, and each of the electroosmosis blocks is connected to the power supply device through the anode power transmission line and the cathode power transmission line.
Preferably, in the above technical solution, each of the electroosmosis blocks is provided with a plurality of water permeable holes uniformly distributed.
Preferably, in the above technical solution, the frame of each electroosmosis block is a rectangular parallelepiped frame structure.
Preferably, in the above technical solution, the frame of each electroosmosis block is a concrete structure.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses an electric osmosis wall includes a plurality of electric osmosis board, a plurality of electric osmosis board spaced sets up in the bottom of treating the foundation ditch of excavation, but the circular telegram is waterproof when the foundation ditch excavation, the electric field stagnant water curtain of formation can cover whole foundation ditch, can effectively block groundwater infiltration foundation ditch, even also can play the stagnant water effect in the place of not laying the electric osmosis wall, avoid excessive pump drainage groundwater, after the outage, interval between the electric osmosis board can supply groundwater to flow, resume groundwater flow direction, effectively protect the groundwater resource, can adapt to various complicated geological conditions and environmental condition, be particularly in the confined water, karst fracture water is under the abundanter geological condition, the stagnant water effect is showing especially.
2. The utility model discloses a frame of every electroosmosis piece is concrete structure, improves the bulk strength of electroosmosis piece, ensures its intensity index at the push pipe operation process, and after burying the soil body of foundation ditch bottom, can bear upper portion water pressure and upper portion soil pressure, guarantees the normal work of electroosmosis wall.
Drawings
Fig. 1 is a schematic structural diagram of the foundation pit electroosmosis waterproof wall in the water-rich area according to the utility model.
Fig. 2 is a sectional view a-a in fig. 1.
Fig. 3 is a schematic structural view of an electroosmotic block according to the present invention.
Fig. 4 is a schematic top view of fig. 3 according to the present invention.
Description of the main reference numerals:
1-ground, 2-underground water level, 3-waterproof curtain, 4-underground water level after precipitation, 5-underground water level in foundation pit, 6-electroosmosis plate, 7-working well, 8-cathode power transmission line, 9-anode power transmission line, 10-power supply device, 11-foundation pit, 12-permeable hole, 13-conductive plate and 14-framework.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 to 4 are schematic structural views illustrating an electroosmosis waterproof wall for a foundation pit in a water-rich area, which includes an electroosmosis wall and a power supply device 10 according to a preferred embodiment of the present invention. Referring to fig. 1 and 4, the electroosmosis wall includes a plurality of electroosmosis plates 6, the plurality of electroosmosis plates 6 are disposed at intervals at the bottom of a foundation pit 11 to be excavated, each electroosmosis plate 6 includes a plurality of electroosmosis blocks spliced with each other, each electroosmosis block includes a frame 14 and two conductive plates 13, the top and the bottom of the frame 14 are respectively provided with one conductive plate 13, wherein the conductive plate 13 positioned at the top of the frame 14 is an anode plate, the other conductive plate 13 is a cathode plate, and a power supply device 10 is connected to the electroosmosis wall through a power line to supply power to the electroosmosis wall. The utility model discloses an electroosmosis wall can be switched on waterproofly when foundation ditch 11 excavates, and the electric field stagnant water curtain that forms can cover whole foundation ditch 11, can effectively block groundwater infiltration foundation ditch 11, even also can play the stagnant water effect in the place of not laying the electroosmosis wall to drop groundwater level 5 in the foundation ditch to below the design elevation, namely after the electroosmosis wall switches on, can drop groundwater level 5 in the foundation ditch to behind the precipitation on groundwater level 4, and make behind the precipitation groundwater level 4 be located below the design elevation, avoid excessively pumping drainage groundwater; after power failure, the interval between the electroosmosis plates 6 can be used for underground water to flow, the flow direction of the underground water is recovered, underground water resources are effectively protected, various complex geological conditions and environmental conditions can be adapted, and particularly, the effect is particularly obvious under the geological conditions that confined water and karst fracture water are rich.
Referring to fig. 1 to 4, preferably, each electroosmotic block is connected with a power line, the power line comprises an anode power line 9 and a cathode power line 8, the anode plate of each electroosmotic block is connected with the anode power line 9, the cathode plate of each electroosmotic block is connected with the cathode power line 8, each electroosmotic block is connected with a power supply device 10 through the anode power line 9 and the cathode power line 8, namely, each electroosmotic block is connected with the anode power line 9 and the cathode power line 8 and is connected with the power supply device 10 through the anode power line 9 and the cathode power line 8, and power on and power off of each electroosmotic block are controlled independently.
Referring to fig. 3 and 4, preferably, the frame 14 of each electroosmosis block is of a rectangular frame structure to facilitate installation of the electroosmosis block, and the frame 14 of each electroosmosis block is of a concrete structure, that is, two conductive plates 13 of each electroosmosis block are symmetrically arranged up and down, and edges of a rectangular parallelepiped surrounded by the two conductive plates 13 are formed by concrete pouring, so that the overall strength of the electroosmosis block is improved, the strength index of the electroosmosis block in the pipe jacking operation process is guaranteed, and after the electroosmosis block is buried in soil, the electroosmosis block can bear upper water pressure and upper soil pressure, and normal operation of the electroosmosis wall is guaranteed.
Referring to fig. 3 and 4, preferably, each electroosmosis block is provided with a plurality of water permeable holes 12 which are uniformly distributed, that is, the upper and lower conductive plates 13 of each electroosmosis block are provided with water permeable holes 12, so as to facilitate the circulation of groundwater, and after the construction of the foundation pit 11 is completed, the power supply of the electroosmosis wall is cut off, so that the mobility of groundwater is further improved, the original flow direction of groundwater is recovered, and the destruction of groundwater resources is avoided.
Referring to fig. 1 to 4, a construction method of an electro-osmotic waterproof wall of a foundation pit in a water-rich area includes the following steps:
(1) construction preparation: geological exploration is carried out, the foundation pit 11 to be excavated, the geological condition and the underground water distribution condition of the periphery of the foundation pit are explored, the approximate depth of the underground water level 3 is judged, the specific depth of the bottom plate to be waterproof is set according to a foundation pit construction design drawing, namely according to actual requirements, and an electroosmosis block is manufactured in advance according to the foundation pit construction design drawing.
(2) Excavating a working well 7: and (3) fixed points are arranged at the positions without underground water distribution at the periphery of the foundation pit 11 at certain intervals, and a working well 7 is excavated at the fixed points.
(3) Installing an electroosmosis wall: and (3) the electroosmosis blocks of each electroosmosis plate 6 are pushed into the bottom of the foundation pit 11 one by one at the bottom of each working well 7 through a pipe jacking machine, and after all the electroosmosis plates 6 are installed in place, all the electroosmosis plates 6 are connected with the power supply device 10 by penetrating through the corresponding working wells 7 through power transmission lines.
(4) Excavating a foundation pit 11: backfilling all the working wells 7 before excavating the foundation pit 11, paying attention to the protection of the power transmission line in the backfilling process, and compacting and backfilling soil according to the regulation; and arranging a waterproof curtain 3 on the side wall of the foundation pit 11 to form a closed space with the electroosmosis wall at the bottom, then excavating the foundation pit 11 under the power-on state of the electroosmosis wall, manufacturing a foundation pit bottom plate at the bottom of the foundation pit 11, carrying out bottom sealing on the foundation pit 11, and finally disconnecting the power supply of the electroosmosis wall.
Referring to fig. 1 to 4, preferably, in step (2), when excavating the working wells 7 along the periphery of the foundation pit 11, lining and erecting supports are timely constructed in the working wells 7 to prevent the working wells 7 from collapsing, the diameter of the excavated working wells 7 is not less than 2m, and the distance between two adjacent working wells 7 is not less than 20 m.
Referring to fig. 1 to 4, preferably, in step (3), each electroosmosis block is connected with a power line, when each electroosmosis block of the electroosmosis plate 6 is installed at the bottom of the foundation pit 11 one by one at the bottom of the working well 7, the power line of each electroosmosis block is distributed along the installation hole where the pipe jacking machine travels, after all the electroosmosis blocks are installed, the power lines of all the electroosmosis blocks penetrate through the corresponding working well 7 and extend to the ground 1 so as to be connected with the power supply device 10, and then the installation hole is blocked; wherein the push pressure of the push bench is not more than 100T, and the push speed is not more than 5 mm/min.
Adopt the utility model discloses an electric osmosis water-proof wall and construction method thereof can adopt the electric osmosis wall circular telegram drainage of foundation ditch 11 bottom, do not need pump drainage groundwater in succession, reduce energy consumption and cost, prevent that the earth's surface from subsiding by a wide margin, improve the security performance, the electric osmosis wall is after the disconnection power supply, clearance between the electric osmosis board 6 and the hole 12 of permeating water on the electric osmosis board 6 all can supply groundwater to flow, resume groundwater originally to flow to, protect the groundwater resource, the higher area of demand has showing the advantage to groundwater protection.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (5)
1. The utility model provides a rich water area foundation ditch electric osmosis bulkhead which characterized in that includes:
the electroosmosis wall comprises a plurality of electroosmosis plates, the plurality of electroosmosis plates are arranged at the bottom of a foundation pit to be excavated at intervals, each electroosmosis plate comprises a plurality of electroosmosis blocks which are spliced with each other, each electroosmosis block comprises a frame and two conductive plates, the top and the bottom of the frame are respectively provided with one conductive plate, the conductive plate positioned at the top of the frame is an anode plate, and the other conductive plate is a cathode plate; and
and the power supply device is electrically connected with the electroosmosis wall through a power transmission line.
2. The electroosmotic water-proof wall for foundation pits in water-rich areas according to claim 1, wherein each electroosmotic block is connected with the power transmission line, the power transmission line comprises an anode power transmission line and a cathode power transmission line, the anode plate of each electroosmotic block is connected with the anode power transmission line, the cathode plate of each electroosmotic block is connected with the cathode power transmission line, and each electroosmotic block is connected with the power supply device through the anode power transmission line and the cathode power transmission line.
3. The electroosmotic water-proof wall for the foundation pit in the water-rich area according to claim 1, wherein each electroosmotic block is provided with a plurality of uniformly distributed water-permeable holes.
4. The electroosmotic water-proof wall for the foundation pit in the water-rich area according to claim 1, wherein the frame of each electroosmotic block is a cuboid frame structure.
5. The electroosmotic bulkhead of a foundation pit in a water-rich area according to claim 1, wherein the frame of each electroosmotic block is a concrete structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023219174.7U CN215053135U (en) | 2020-12-28 | 2020-12-28 | Water-rich area foundation ditch electric osmosis water-proof wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023219174.7U CN215053135U (en) | 2020-12-28 | 2020-12-28 | Water-rich area foundation ditch electric osmosis water-proof wall |
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| Publication Number | Publication Date |
|---|---|
| CN215053135U true CN215053135U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023219174.7U Expired - Fee Related CN215053135U (en) | 2020-12-28 | 2020-12-28 | Water-rich area foundation ditch electric osmosis water-proof wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681351A (en) * | 2020-12-28 | 2021-04-20 | 济南轨道交通集团有限公司 | Foundation pit electroosmosis waterproof wall in water-rich area and construction method thereof |
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2020
- 2020-12-28 CN CN202023219174.7U patent/CN215053135U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681351A (en) * | 2020-12-28 | 2021-04-20 | 济南轨道交通集团有限公司 | Foundation pit electroosmosis waterproof wall in water-rich area and construction method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20211207 |