Recyclable foundation pit enclosure protection body water leakage rapid plugging device and its construction method

Abstract

The invention discloses a recyclable foundation pit enclosure protection body leaking fast dredging device and a construction method thereof. The quick dredging device includes a cylindrical outer permeable steel pipe and an inner permeable steel pipe, and the inner permeable steel pipe is nested in the outer permeable steel pipe. , the circular baffle is fixed on the metal sheet ring to close the front ends of the outer permeable steel pipe and the inner permeable steel pipe, the circular baffle is externally connected with a water outlet pipe connected with the inner cavity of the inner water permeable steel pipe, and a water control valve is installed on the water outlet pipe. The device combines the two treatment methods of dredging and plugging, quickly plugs the leaking point and discharges the groundwater in an orderly and efficient manner, reduces the soil water pressure, and at the same time prevents the danger of piping and quicksand, from the source of the disaster caused by the water-induced leakage of the foundation pit to solve the problem.

Description

Technical field [0001] The present invention belongs to the technical field of geotechnical engineering, in particular to an excaration foundation rapid circulation apparatus using the leakage sparse block construction method thereof. Background technique [0002] When the high water level in the Foundation Pit construction, due to changes in circumstances and reasons hydrogeological construction cold joints, pit water leakage will occur, to the post-construction inconvenience, delay the construction period, easily lead to accidents. In order to avoid leakage due to landslides caused by excavation, to ensure construction safety, to take a quick and effective method of blocking the thinning it is necessary. [0003] Leakage current pit has sealing treatment method and a water drainage tube intercept method hydrophobic. The former includes the following two measures: 1) seal curtain reinforcement: pressure rotary spray body outside the foundation pit for closure reinforcement, form...

AI Technical Summary

Problems solved by technology

This method causes waste of water resources, and at the same time, due to the lack of filtration, the groundwater will take away the fine particles in the soil, resulting in cavities in the soil layer, causing the slope of the foundation pit to collapse and the surface settlement outside the pit, which will have adverse effects on adjacent buildings

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