Water conservancy project foundation pit tube well combined light well point dewatering and drainage method

A light well point and water conservancy engineering technology, applied in infrastructure engineering, construction, etc., can solve the problems of difficult operation, high construction cost, low drainage efficiency, etc., to improve efficiency and quality, simplify construction volume, and improve efficiency. Effect

Inactive Publication Date: 2019-05-10
JIANGSU PROVINCE WATER ENG SCI TECH CONSULTING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when carrying out construction work on water conservancy buildings such as wharfs and dams, during the excavation of foundation pits, due to the relatively close distance between the location of the foundation pit and the surface water body, the groundwater level at the location of the foundation pit construction is relatively high. On the one hand, it is extremely It is easy to cause surface water to seep into the foundation pit, and on the other hand, cause the groundwater level to be higher than the bottom of the foundation pit, resulting in serious water accumulation in the foundation pit, which seriously affects the efficiency and quality of foundation pit construction. To solve this problem, mainly The drainage of the foundation pit is carried out by means of pumping and drainage to meet the needs of engineering construction, but this construction drainage method is difficult to operate, the construction cost is high, and the drainage efficiency is relatively low, which seriously affects the efficiency of engineering construction. At the same time, the current The drainage method adopted will also have a great impact on the structure of the foundation pit, resulting in a great impact on the efficiency and quality of the foundation pit construction operation. To solve this problem, it is urgent to develop a new foundation pit drainage construction method. to meet the needs of actual use

Method used

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  • Water conservancy project foundation pit tube well combined light well point dewatering and drainage method
  • Water conservancy project foundation pit tube well combined light well point dewatering and drainage method
  • Water conservancy project foundation pit tube well combined light well point dewatering and drainage method

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Effect test

Embodiment 1

[0037] like figure 1 and 2 As shown, a water conservancy engineering foundation pit tube well combined with light well point drainage method, comprising the following steps:

[0038] The first step is the geological data collection of the foundation pit. First, the construction data such as the foundation pit, depth, area, distance from the adjacent surface water body, and head difference between the adjacent surface water body and the construction data of the building to be constructed are obtained, and then the location of the foundation pit for construction is obtained. Geological structure data, and at the same time obtain the water level change data, surface precipitation data and surface evaporation data of the groundwater level at the corresponding location of the foundation pit within 6 consecutive months before construction, and finally classify and summarize the obtained data, and draw data statistics List and geological profile of foundation pit construction locati...

Embodiment 2

[0065] like figure 1 and 2 As shown, a water conservancy engineering foundation pit tube well combined with light well point drainage method, comprising the following steps:

[0066] The first step is the geological data collection of the foundation pit. First, the construction data such as the foundation pit, depth, area, distance from the adjacent surface water body, and head difference between the adjacent surface water body and the construction data of the building to be constructed are obtained, and then the location of the foundation pit for construction is obtained. Geological structure data, and at the same time obtain the water level change data, surface precipitation data and surface evaporation data of the groundwater level corresponding to the foundation pit for at least 6 consecutive months before construction, and finally classify and summarize the obtained data, and draw the data Statistical list and geological profile of foundation pit construction location; ...

Embodiment 3

[0093] like figure 1 and 2 Shown, and take Zaohe station project construction wharf foundation pit construction as example the technical scheme of the present invention is described.

[0094] A water conservancy project foundation pit tube well combined with light well point drainage method, comprising the following steps:

[0095]The first step is the geological data collection of the foundation pit. The bottom elevation of the foundation pit excavation of the construction wharf of the Zaohe Station project is 14.7m, and the water level outside the embankment of the adjacent Luoma Lake is 22.4m, with a water head difference of 7.7m. The soil layer distribution of the wharf foundation is as follows: the surface layer is grayish-yellow silty clay, with an average elevation of 21.3-19.9m and a permeability coefficient of 81.6m / d; the second layer is gray silty clay, partially heavy silty loam, and the average elevation 19.9-14.7m, permeability coefficient is 22.5m / d; the third...

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Abstract

The invention relates to a water conservancy project foundation pit tube well combined light well point dewatering and drainage method. The method comprises four steps of foundation pit geological data collection, tube well layout scheme design and check, tube well water yield check and tube well construction operation. Compared with a traditional drainage construction technology, on one hand, theconstruction amount of drainage construction operation is effectively simplified, the construction operation efficiency is improved, the operation cost of drainage construction and drainage operationis effectively reduced, on the other hand, the efficiency of foundation pit drainage operation is effectively improved, the influence of construction drainage on engineering construction is reduced,and the efficiency and quality of foundation pit construction operation are improved.

Description

technical field [0001] The invention relates to a water conservancy project foundation pit pipe well combined with light well point drainage method, which belongs to the technical field of water conservancy construction. Background technique [0002] At present, when carrying out construction work on water conservancy buildings such as wharfs and dams, during the excavation of foundation pits, due to the relatively close distance between the location of the foundation pit and the surface water body, the groundwater level at the location of the foundation pit construction is relatively high. On the one hand, it is extremely It is easy to cause surface water to seep into the foundation pit, and on the other hand, cause the groundwater level to be higher than the bottom of the foundation pit, resulting in serious water accumulation in the foundation pit, which seriously affects the efficiency and quality of foundation pit construction. To solve this problem, mainly The drainage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/10
Inventor 周喜武陈学东任玉彬周治刚吴保林
Owner JIANGSU PROVINCE WATER ENG SCI TECH CONSULTING
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