Drainage-type muck pond and multi-dimensional seepage and dehydration method of earth-pressure-balance shield muck

Abstract

The invention discloses a drainage-type muck pond and a multi-dimensional seepage and dehydration method of earth-pressure-balance shield muck. The drainage-type muck pond comprises a pond base used for being loaded with the muck, a sealing structure is arranged in an opening of the upper portion of the pond base and used for sealing the pond base fully loaded with the muck and making an pond baseinner cavity loaded with the muck be sealed, a bottom pipe network used for collecting water seeping downward from the muck from the lower portion is arranged on the bottom of the pond base inner cavity, and a suction and drainage device is connected onto the bottom pipe network, wherein the suction and drainage device is used for sucking outward the water collected in the bottom pipe network andmaking the balanced negative pressure be formed in the sealed cavity so that water in the muck can be forced to seep outward fast. Through the action of the vacuum negative pressure, drainage of themuck to the surrounding and the bottom is forced, and moisture which enters a channel of the suction and drainage device is sucked by the suction and drainage device for being drained outward, so thatthe water content of the muck in the sealed space is lowered, harmless treatment is achieved, and a foundation is laid for resource utilization; the method is suitable for dehydration treatment of all shield construction muck and muck with high water content.

Description

technical field [0001] The invention relates to the technical field of shield machine dregs treatment, in particular to a drainage type dregs pond. In addition, the present invention also relates to an earth pressure balance shield multi-dimensional seepage dewatering method for muck including the above-mentioned drainage muck pond. Background technique [0002] The earth pressure balance shield method is often used for subway excavation, and earth pressure balance shield dregs disposal has always been a difficult problem in subway construction. Compared with the muck excavated by methods such as drilling and blasting, the earth pressure balance shield muck has finer particles, higher moisture content, and greater harm. The traditional treatment method is generally to transport the muck to the designated muck disposal site for open-air stacking or landfill in the project backfill area, which has a series of disadvantages. First of all, various environmental and traffic saf...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a drainage type muck pond and an earth pressure balance shield muck multi-dimensional seepage dehydration method to solve the problem of high investment cost caused by the muddy water balance shield dreg treatment method , The technical problems of large area occupied by equipment and low efficiency of muck treatment

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