Leaking stoppage method for foundation pit

A plugging method and foundation pit technology, applied in the direction of infrastructure engineering, construction, etc., can solve problems such as difficult sealing, brick walls toppled down, and slow brick-laying speed, so as to achieve less consumption, less use of equipment, and less waste of construction period Effect

Inactive Publication Date: 2012-07-25
天津建岩岩土工程有限公司
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  • Application Information

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Problems solved by technology

The limitations of this method are: the brick wall cannot be firmly engaged with the support piles, and the bottom of the brick wall is still soft powder sand, and when the water pressure outside the foundation pit increases, the brick wall will b

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  • Leaking stoppage method for foundation pit
  • Leaking stoppage method for foundation pit
  • Leaking stoppage method for foundation pit

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Embodiment Construction

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] see Figures 4 to 7 Shown, the water-stop curtain plugging method of the present invention may further comprise the steps:

[0032] 1) Ascertain the location of the leakage area 4 between the water-stop curtain 1 and the support pile 3. The leakage region 4 can be detected and located by special instruments in the prior art, such as groundwater detectors or leak listeners. In the embodiment of the present invention, several exploration holes 5 (the diameter of the exploration holes 5 can be about 10 cm) are drilled near the gap positions between adjacent support piles inside the foundation pit, and the rock core structure in the exploration holes 5 is obtained and compared with them. The degree of porosity, the explorator...

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Abstract

The invention discloses a leaking stoppage method for a foundation pit, which can avoid shortcomings of a leaking stoppage method for a foundation pit in the prior art, is simple in step, few in consumption and fine in leaking stoppage effect, and can fast complete leaking stoppage. The leaking stoppage method includes following steps: 1) determining the position of a leaking region between a water-stopping curtain and a supporting pile; 2) downwards drilling at least one hole to the leaking region from the construction ground over the leaking region; 3) feeding filling sacs into the leaking region via the drilled holes; and 4) filling fillers into the filling sacs and leading the filling sacs to be expanded in the leaking region until leaking stoppage is finished. The leaking stoppage method for the foundation pit can fast stop leaking in the leaking region within a short time, saves operation time, and reduces waste of a work period. An operation environment is simple, and operation needs to be performed on the construction ground only and is convenient; and fewer devices are used, consumption of leaking stoppage materials is low, leaking stoppage is finished at one step fundamentally, and a leaking stoppage effect is good.

Description

technical field [0001] The invention relates to a method for waterproofing and anti-seepage in the construction field, in particular to a method for plugging leakage of foundation pits. Background technique [0002] Foundation pits located below the groundwater table need to take measures to drain groundwater during construction. When the aquifer is rich in water and difficult to drain, or precipitation may cause damage such as deformation of surrounding buildings, a curtain water-stop solution is often used. As a waterproof facility for underground foundation pits, the water-stop curtain is the general term for the water-stop series around the main body of the project. For some not very deep foundation pits, its foundation pit enclosure is divided into three parts. One part is the retaining pile, which mainly acts as a retaining wall. The form may be a reinforced concrete pile or other forms of piles. There is a certain gap between the piles, but they can retain the soil. ...

Claims

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Application Information

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IPC IPC(8): E02D19/16
Inventor 林威
Owner 天津建岩岩土工程有限公司
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