Seepage-proofing and seepage-resisting construction method for foundation pit close to river

A construction method and technology for foundation pits, which are applied in basic structure engineering, excavation, protection devices, etc., can solve problems such as unsatisfactory anti-seepage effect, inability to stop water seepage in foundation pits, and increase construction period, and achieve significant economic and social benefits. , The effect of reducing production time and saving materials

Inactive Publication Date: 2020-04-10
广西建工第五建筑工程集团有限公司
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Problems solved by technology

However, the anti-seepage effect of these construction methods is not ideal, and it cannot completely guarantee that the seepage of the f

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  • Seepage-proofing and seepage-resisting construction method for foundation pit close to river
  • Seepage-proofing and seepage-resisting construction method for foundation pit close to river
  • Seepage-proofing and seepage-resisting construction method for foundation pit close to river

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Embodiment Construction

[0028] A construction method for anti-seepage and anti-seepage of a foundation pit near a river. The construction method adopts the combination of the dye indicator method, the technology of sealing the permeable point of the closed container, the technology of pouring fine stone waterproof concrete in stages, and the technology of sealing the riverbed surface with waterproof concrete, and the water seepage is reduced. Block the seepage at the source to solve the water seepage problem; the main process of the construction process is: construction preparation → use the dye indicator method to determine the seepage of the karst cave at the bottom of the riverbed → close the vortex of the seepage with a closed container → pour fine water into the closed container in stages At the same time, pump water from the foundation pit → when the flowing water in the foundation pit is completely stopped, seal the surface of the river bed with waterproof concrete → lift the closed container aw...

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Abstract

The invention discloses a seepage-proofing and seepage-resisting construction method for a foundation pit close to a river. According to the construction method, a dye indication method, a technologyof sealing a water seepage point by using a sealed container, a technology of pouring fine stone waterproof concrete in different steps and a technology of sealing a river bed surface by using waterproof concrete are combined, and a water seepage opening is blocked from a water seepage source to solve the water seepage problem. The construction process mainly comprises the steps of carrying out construction preparation; determining a water seepage opening of a karst cave at the bottom of a river bed by using the dye indication method; sealing the vortex position of the water seepage opening through the sealed container; pouring the fine stone waterproof concrete into the sealed container in different steps; meanwhile, pumping water from the foundation pit; after flowing water in the foundation pit is completely stopped, sealing the river bed surface by using the waterproof concrete; and lifting the sealed container to leave the river surface. According to the construction method, the water seepage problem can be solved from the water seepage source, the water seepage point is directly blocked, ultra-large mechanical equipment or complex equipment is not needed, and the mechanical equipment used for construction is simple and is easy and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of building exhaust systems, in particular to an anti-seepage and anti-seepage construction method for foundation pits near rivers. Background technique [0002] In recent years, with the rapid development of urbanization in the country, large-scale construction projects have been carried out all over the country. During the foundation construction of buildings adjacent to the riverside / lakeside, the problem of infiltration of nearby river water into the foundation pit is often encountered. The karst landform features in Guangxi, Yunnan and other regions lead to a large number of underground karst caves in the area, and the surrounding water can easily infiltrate into the foundation pit through the karst caves. The traditional anti-seepage and anti-seepage construction methods include filling sandbags or laying double-row piles or water-stop steel sheet piles near the river surface to form a water-stop curta...

Claims

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Application Information

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IPC IPC(8): E02D17/02E02D31/02
CPCE02D17/02E02D31/02
Inventor 全海锋李荣芳班德富丁传声黄柳君
Owner 广西建工第五建筑工程集团有限公司
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