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Vacuum foundation pit deep well dewatering equipment

A deep well dewatering and foundation pit technology, which is applied in infrastructure engineering, separation methods, construction, etc., can solve the problems of one-time investment, the inability of dewatering treatment and damage to the foundation pit at the same time, to achieve better benefits and prevent impurities from entering The effect of vacuum pump

Pending Publication Date: 2022-05-10
SHANGHAI CHANGKAI GEOTECHN ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The difficulty of the deep well point dewatering equipment in the prior art is that as the depth of the well increases, the difficulty of pumping water increases, and the submersible pump is difficult to dive. Multiple foundation pits cannot be dewatered at the same time, and the one-time investment is large, and the operating cost is high. There is a lot of material loss, and the use effect is not ideal, and there are many impurities in the foundation pit, which will affect the operation of the precipitation equipment, and even cause damage

Method used

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  • Vacuum foundation pit deep well dewatering equipment
  • Vacuum foundation pit deep well dewatering equipment
  • Vacuum foundation pit deep well dewatering equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A deep well dewatering device for a vacuum foundation pit, comprising an original foundation pit 1 and a downcomer 2, the downcomer 2 is buried in the original foundation pit 1, and the top of the downcomer 2 is sealed, and a deep well inlet pipe 5 is inserted into the downcomer 2, And the top of the deep well water inlet pipe 5 extends to the outside of the original foundation pit 1 and is connected with a vacuum pump 4. The vacuum pump 4 is also connected with a water outlet pipe 6. The inner wall of the downcomer 2 is provided with water seepage holes 7 at equal distances from bottom to bottom. The top of the foundation pit 1 is sealed with a miscellaneous net tube 3, and the bottom of the miscellaneous net tube 3 is provided with a water filter layer 301, the downcomer 2 runs through the middle part of the miscellaneous net tube 3, and the top of the miscellaneous net tube 3 is provided with a A water inlet, and a sealing cover 20 is arranged in the water inlet, and ...

Embodiment 2

[0032] The difference from Embodiment 1 is that it also includes the following content:

[0033] The leverage mechanism includes a first gear 11, a reel 12, a swing lever 13, a coil 14, an inelastic rope 15, a second gear 16 and an opening and closing plate 17. The first gear 11 is fixedly mounted on the screw rod 9, and the downcomer 2 The inner wall of the downcomer 2 is rotatably equipped with a linkage shaft, and the reel 12 is fixedly mounted on the linkage shaft. The inner wall of the downcomer 2 is rotatably equipped with two symmetrically arranged swing rods 13, and the swing rod 13 is fixedly equipped with a coil 14, which is non-elastic. One end of the rope 15 is wound on the reel 14, and the other end of the non-elastic rope 15 is wound on the reel 12. The swing lever 13 is also fixedly equipped with a horizontally resettable opening and closing plate 17, and the second gear 16 It is fixedly installed on the linkage shaft, and the second gear 16 meshes with the firs...

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Abstract

The vacuum foundation pit deep well dewatering equipment comprises an original foundation pit and a dewatering pipe, the dewatering pipe is buried in the original foundation pit, the top of the dewatering pipe is arranged in a sealed mode, a deep well water inlet pipe is inserted into the dewatering pipe, the top end of the deep well water inlet pipe extends out of the original foundation pit and is connected with a vacuum pump, and the vacuum pump is further connected with a water outlet pipe. According to the vacuum foundation pit deep well dewatering equipment, water of an original foundation pit enters the dewatering pipe through the small water seepage holes, so that the water level of the original foundation pit is equal to the water level in the dewatering pipe, the vacuum pump is started when dewatering treatment is needed, the vacuum pump pumps the water in the dewatering pipe through the deep well water inlet pipe, and then the water in the dewatering pipe is discharged through the water outlet pipe; and if water in two or more original foundation pits needs to be drained, one end of the vacuum water distribution pipe is connected with the deep well water inlet pipe through the two-way sleeve, and the other end of the vacuum water distribution pipe extends into the dewatering pipe of another original foundation pit, so that synchronous dewatering treatment can be carried out on the multiple original foundation pits at the same time, and the benefit is better.

Description

technical field [0001] The invention relates to the technical field of foundation construction engineering, in particular to a deep well dewatering device for a vacuum foundation pit. Background technique [0002] Deep foundation pit excavation is an important construction procedure for modern large-scale underground structures. Reducing the groundwater level in the foundation pit is also called groundwater control. The higher the groundwater level of the environment, the deeper the depth required for the foundation, and the greater the difficulty of its construction. In order to prevent changes in the underground surroundings from causing harm to the environment and facilities around the foundation pit, deep wells are generally used to lower the groundwater level to solve such technical problems and special equipment is used. [0003] The difficulty of the deep well point dewatering equipment in the prior art is that as the depth of the well increases, the difficulty of pu...

Claims

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Application Information

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IPC IPC(8): E02D19/10E02D19/06B01D29/35B01D29/64
CPCE02D19/10E02D19/06B01D29/35B01D29/6423
Inventor 冯恒北潘虎陆旺王晨瑄汪海江付尚彦曹诚锐牛磊
Owner SHANGHAI CHANGKAI GEOTECHN ENG