Underground water control method for backfilled sediment layer

A control method and groundwater technology, applied in construction, infrastructure engineering and other directions, can solve the problems of many obstacles, strong water permeability, foundation pit excavation and construction cannot be carried out, etc., to achieve the effect of simple process principle and ease of land use tension

Inactive Publication Date: 2016-02-24
CHINA MCC20 GRP CORP
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Problems solved by technology

[0002] With the vigorous development of my country's construction industry, the construction land is increasingly scarce. Many new projects will choose the backfill area. When the backfill area is backfilled in the early construction or for other purposes, most of the backfill has a large number of lumpy objects or construction waste. The muck soil layer has the characteristics of strong water permeability, many obstacles, pre-installed enclosures and difficulties in underground drainage facilities, etc., so that a large amount of groundwater will continue to pour in during the excavation of the foundation pit, making the excavation and construction of the foundation pit in this area impossible. conduct

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  • Underground water control method for backfilled sediment layer
  • Underground water control method for backfilled sediment layer

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Embodiment Construction

[0017] The present invention is further illustrated below by specific examples.

[0018] Such as figure 1 , figure 2 Shown, a kind of groundwater control method of backfilling slag inclusion soil layer, comprises the following steps:

[0019] Step 1. Measure and locate around the excavation area of ​​the foundation pit, set the groundwater control dam body excavation mark, and set out the line;

[0020] Step 2, excavating the dam body;

[0021] specifically,

[0022] Step 2.1, excavating a section of the dam body along the predetermined position,

[0023] Step 2.2, one end in the excavation section is provided with a drainage pump to remove the collected water in the excavation section of the dam body;

[0024] Step 2.3, filling the other end of the excavation section with clay for compaction, and so on to form the entire dam body 1;

[0025] Step 3, while excavating the dam body 1, pre-bury the downfall pipe well 2 beside the dam body, wherein, when backfilling the dam...

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Abstract

The invention relates to the field of civil engineering, in particular to an underground water control method for a backfilled sediment layer. The underground water control method for the backfilled sediment layer includes the steps that firstly, the periphery of a foundation pit excavation area is measured and positioned, an underground water control dam body excavation mark is set, and line is paid off; secondly, a dam body is excavated; thirdly, while the dam body is excavated, a dewatering tube well is buried near the dam body in advance, and backfill filter materials are arranged on the periphery of the dewatering tube well during backfilling of the dam body; fourthly, the second step and the third step are repeated until the whole dam body is formed, accumulated water in the foundation pit area is drained through the dewatering tube well, and internal structure construction is carried out after excavation of a foundation pit. The underground water control method for the backfilled sediment layer is simple in technical principle, convenient to operate and wide in application range and can be applied to tidal flat areas of rivers and sea, and the problem of shortage of construction land is relieved.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a groundwater control method for backfilling a slag-containing soil layer. Background technique [0002] With the vigorous development of my country's construction industry, the construction land is increasingly scarce. Many new projects will choose the backfill area. When the backfill area is backfilled in the early construction or for other purposes, most of the backfill has a large number of lumpy objects or construction waste. The muck soil layer has the characteristics of strong water permeability, many obstacles, pre-installed enclosures and difficulties in underground drainage facilities, etc., so that a large amount of groundwater will continue to pour in during the excavation of the foundation pit, making the excavation and construction of the foundation pit in this area impossible. conduct. Contents of the invention [0003] The object of the present invention is to pr...

Claims

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Application Information

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IPC IPC(8): E02D19/10
CPCE02D19/10
Inventor杨前
OwnerCHINA MCC20 GRP CORP