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A layered backfill sealing method for foundation pit gushing water based on protecting karst water channels

A layered backfill and karst water technology, which is applied in filling, infrastructure engineering, construction, etc., can solve the problems of unrecoverable karst water channels, loss of spring water gushing, waste of groundwater resources, etc.

Active Publication Date: 2021-05-07
JINAN RAILWAY TRANSPORT GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the forced precipitation scheme has problems such as difficult precipitation and waste of groundwater resources; the grouting plugging scheme mostly uses composite double-fluid grout, which has poor water blocking effect and will adversely affect groundwater quality; foundation pit backfilling is It will cause irreversible damage to the karst water channel; in summary, the conventional scheme has a greater impact on the groundwater volume and water quality, and will cause irreversible damage to the karst water channel, which may cause irreparable losses to the gushing of spring water

Method used

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  • A layered backfill sealing method for foundation pit gushing water based on protecting karst water channels
  • A layered backfill sealing method for foundation pit gushing water based on protecting karst water channels
  • A layered backfill sealing method for foundation pit gushing water based on protecting karst water channels

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[0031] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0032] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0033] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present i...

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Abstract

The invention relates to a layered backfill sealing method for foundation pit water gushing based on the protection of karst water channels: when the foundation pit is dug to the point where karst water gushes along the karst water channel inside the foundation pit, a permeable layer with water permeability is laid on the bottom of the foundation pit , and then lay a water-resisting layer above the permeable layer to block the gushing water. The plugging method of the present invention will not damage the flow of karst water, and has significant social and economic benefits for protecting karst water channels.

Description

technical field [0001] The invention relates to the technical field of underground construction engineering, in particular to a layered backfilling and sealing method for foundation pit gushing water based on protecting karst water channels. Background technique [0002] With the development of the city, the engineering construction continues to expand underground, and the underground engineering construction process is bound to face the problem of conflict with the karst water channel. On the premise of protecting the karst water channel, the core issue of protecting the spring water is to block the groundwater. one. [0003] The inventor found that at present, there is no relevant invention patent at home and abroad to propose a protective solution to solve the karst water runoff channel encountered in underground engineering construction. In the actual construction process, forced precipitation, grouting plugging or backfilling of foundation pits are often used. Among th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D19/06E02D19/12E02D17/18
CPCE02D17/18E02D19/06E02D19/12E02D2300/002E02D2300/0029
Inventor 李罡赵子寅李虎武朝军鲁卫东
Owner JINAN RAILWAY TRANSPORT GRP CO LTD