CN211180671U - Foundation pit dewatering water level control structure of weak permeability soil - Google Patents
Foundation pit dewatering water level control structure of weak permeability soil Download PDFInfo
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- CN211180671U CN211180671U CN202020275813.2U CN202020275813U CN211180671U CN 211180671 U CN211180671 U CN 211180671U CN 202020275813 U CN202020275813 U CN 202020275813U CN 211180671 U CN211180671 U CN 211180671U
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Abstract
The utility model discloses a foundation ditch precipitation water level control structure of weak permeability soil property relates to basement engineering technical field. The foundation pit dewatering water level control structure for the weak-permeability soil comprises a dewatering well, wherein a small-caliber water pump is arranged at the bottom of an inner cavity of the dewatering well, and the small-caliber water pump is communicated with a small-caliber water pipe. The foundation pit dewatering water level control structure of the weak permeability soil texture has the advantages that the drainage capacity is slightly larger than the seepage capacity by reducing the caliber of the dewatering pump, the water level control float and the power supply trigger are installed, the drainage time is prolonged as far as possible, the drainage capacity is slightly larger than the seepage capacity of underground water, the installation process is provided, the dewatering effect is achieved, the construction quality of underground structures in a deep foundation pit is guaranteed, the potential safety hazard of the slowly-permeated underground water to a side slope is eliminated, meanwhile, the construction efficiency is improved, and a series of protective measures which are adopted for generating the potential safety hazard to the side slope due to long-term slow water seepage are not needed.
Description
Technical Field
The utility model relates to a basement engineering technical field specifically is a foundation ditch precipitation water level control structure of weak permeability soil property.
Background
At present, with the development of economy, residents live more and more intensively, so that the cell scale is larger and larger, high-rise buildings are increased, and one or more layers of basements (civil air defense projects or basements) are generally arranged to meet the requirements of use functions. Before the basement foundation pit earthwork is excavated, the water level is required to be reduced to 1.000m below the basement foundation pit, and the foundation pit earthwork excavation can be carried out, so that the quality of the foundation pit earthwork excavation is guaranteed, and the safety of foundation pit side slope support can be guaranteed. The weak permeability soil quality is one of factors for preventing the high water level from being rapidly reduced, and how to adopt effective measures to increase the precipitation effect usually adopts the steps of increasing the precipitation and drainage time, increasing the lift of a drainage pump and increasing the number of precipitation wells. In the process of water drainage, water seepage is slow due to soil property, so that water can be drained for only a few minutes at a time, and then water drainage is carried out for a few hours again, and the water drainage effect cannot be achieved due to the circulation.
In the practice of deep foundation pit dewatering, project geological exploration reports can be referred to for achieving the dewatering effect, the depth and the number of dewatering wells are calculated, however, in the case of weak permeability soil quality, the caliber and the lift of a drainage pump need to be considered, the dewatering and drainage duration is controlled, the operation is complex, a large amount of labor expenditure is required, and inconvenience is brought to the use of a user.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a foundation ditch precipitation water level control structure of weak permeability soil property has solved in deep basal pit precipitation practice, for reaching the precipitation effect, can refer to project geological exploration report to through calculating the degree of depth and the number of precipitation well, then in the face of weak permeability soil property, still need consider the drain pump bore, lift, control long time of falling the drainage, the problem of the complicated and a large amount of manpower expenses that need of operation.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the foundation pit dewatering water level control structure comprises a dewatering well, wherein a small-caliber water pump is arranged at the bottom of an inner cavity of the dewatering well, the small-caliber water pump is communicated with a small-caliber water pipe, one end, far away from the small-caliber water pump, of the small-caliber water pipe penetrates through the top of the dewatering well and extends to the outside of the dewatering well, a power supply trigger is arranged at the upper opening of the dewatering well, a water level control float which is matched with the power supply trigger is arranged at the input end of the power supply trigger, and the water level control float is arranged in the dewatering well.
(III) advantageous effects
The utility model provides a foundation ditch precipitation water level control structure of weak permeability soil property. The method has the following beneficial effects: the foundation pit dewatering water level control structure of the weak permeability soil texture has the advantages that the drainage capacity is slightly larger than the seepage capacity by reducing the caliber of the dewatering pump, the water level control float and the power supply trigger are installed, the drainage time is prolonged as far as possible, the drainage capacity is slightly larger than the seepage capacity of underground water, the installation process is provided, the dewatering effect is achieved, the construction quality of underground structures in a deep foundation pit is guaranteed, the potential safety hazard of slowly-permeated underground water to side slopes is eliminated, and meanwhile, the construction efficiency is improved. A series of protective measures which are taken for generating potential safety hazards on the side slope due to long-term slow water seepage are not needed, the purposes of reducing the corrosion of underground water to underground structures and ensuring the construction quality are achieved, and good social reputation is obtained.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. dewatering wells; 2. a small-bore water pump; 3. a small-caliber water pipe; 4. controlling the water level to float; 5. and a power supply trigger.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a foundation ditch precipitation water level control structure of weak permeability soil property, includes precipitation well 1, the bottom of 1 inner chamber of precipitation well is provided with small-bore water pump 2, small-bore water pump 2 intercommunication has small-bore water pipe 3, the one end that small-bore water pipe 3 kept away from small-bore water pump 2 runs through the top of precipitation well 1 and extends to the outside of precipitation well 1, 1 mouth department of precipitation well is provided with power trigger 5, power trigger 5's input is provided with floats 4 rather than the water level control that the cooperation set up, water level control floats 4 and sets up in precipitation well 1.
When in work, the first step is as follows: as known from the accompanying drawings: according to the exploration report result, the water seepage amount of the soil is determined, and a small-caliber water pump 2 is installed in the precipitation well 1, so that the water yield is slightly larger than the underground water seepage amount.
Step two: and selecting a small-caliber water pipe 3 matched with the small-caliber water pump 2 and connecting the small-caliber water pipe to a drainage ditch at the top of the foundation pit.
Step three: a water level control float 4 is arranged in the precipitation well 1, a power supply trigger 5 is arranged at the upper opening of the precipitation well 1, and the water level control float 4 is connected with the power supply trigger 5 to control the working time of the small-caliber water pump 2.
In conclusion, the foundation pit dewatering water level control structure for the soil with weak permeability has the advantages that the drainage quantity is slightly larger than the seepage quantity by reducing the caliber of the dewatering and draining pump, the water level control float and the power supply trigger are installed, the drainage time is prolonged as much as possible, the drainage quantity is slightly larger than the seepage quantity of underground water, the installation process is provided, the dewatering effect is achieved, the construction quality of underground structures in a deep foundation pit is guaranteed, the potential safety hazard of slowly-permeating underground water to side slopes is eliminated, and meanwhile the construction efficiency is improved. A series of protective measures which are taken for generating potential safety hazards on the side slope due to long-term slow water seepage are not needed, the purposes of reducing the corrosion of underground water to underground structures and ensuring the construction quality are achieved, and good social reputation is obtained.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a foundation ditch precipitation water level control structure of weak permeability soil property, includes precipitation well (1), its characterized in that: the water level control device is characterized in that a small-diameter water pump (2) is arranged at the bottom of an inner cavity of the dewatering well (1), the small-diameter water pump (2) is communicated with a small-diameter water pipe (3), one end, far away from the small-diameter water pump (2), of the small-diameter water pipe (3) penetrates through the top of the dewatering well (1) and extends to the outside of the dewatering well (1), a power supply trigger (5) is arranged at the upper opening of the dewatering well (1), a water level control float (4) which is matched with the power supply trigger (5) is arranged at the input end of the power supply trigger (5), and the water level control float (4) is arranged in the dewatering.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020275813.2U CN211180671U (en) | 2020-03-09 | 2020-03-09 | Foundation pit dewatering water level control structure of weak permeability soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020275813.2U CN211180671U (en) | 2020-03-09 | 2020-03-09 | Foundation pit dewatering water level control structure of weak permeability soil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117848782A (en) * | 2024-03-05 | 2024-04-09 | 河南省新乡水文水资源测报分中心 | Hydrologic water resource groundwater organic pollutant sample collection device |
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2020
- 2020-03-09 CN CN202020275813.2U patent/CN211180671U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117848782A (en) * | 2024-03-05 | 2024-04-09 | 河南省新乡水文水资源测报分中心 | Hydrologic water resource groundwater organic pollutant sample collection device |
| CN117848782B (en) * | 2024-03-05 | 2024-05-28 | 河南省新乡水文水资源测报分中心 | Hydrologic water resource groundwater organic pollutant sample collection device |
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