Water seepage control construction method for karst water-rich geological underground structure waterproof construction

Abstract

The invention relates to the field of basement water-rich geological structure waterproof construction, in particular to a water seepage control construction method for karst water-rich geological underground structure waterproof construction. The problem that waterproof construction is affected due to the fact that existing underground structure waterproof construction only focuses on construction self-waterproofing and is poor in waterproof effect and water pressure and waterways of foundation pit water seepage always exist. The water seepage control construction method includes the steps of water seepage control on baseboard waterproof construction, waterproofing and water draining of baseboards and continuous wall corners, water seepage control on wall waterproof construction, water seepage control on portal waterproof construction, and water seepage control on waterproof construction of expansion joints and post-cast strips. A water seepage control technique at positions such as the baseboards, station structure side walls, the expansion joints and the post-cast strips is realized, structure waterproof performance is improved, waterproof construction is ensured to be performed in a water-free environment, quality of waterproof construction and cement construction under the karst water-rich geological conditions is guaranteed, simplicity and convenience in technological operation are realized, and the water seepage control construction method is wide in application range, reliable in technology, high in superiority and convenient to popularize and apply.

Description

technical field [0001] The invention relates to the field of structural waterproof construction of base water-rich geology, in particular to a water seepage control construction method for waterproof construction of underground structures in karst water-rich geology. Background technique [0002] It is known that there are two sources of water leakage during the waterproof construction of underground structures, such as figure 1 As shown, one is that the water from the rock crevice, karst water or sand layer flows upwards from the bottom of the wall, commonly known as piping; the other is the leakage of the diaphragm wall, which is easy to seal and has no influence on the base water in actual construction. It's serious. like figure 2 As shown, the water pressure of the bottom water in the gap between the diaphragm wall and the structural wall will replace the water pressure of the seepage of the diaphragm wall, making the design waterproof system invalid, and the impact o...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing underground structure waterproofing construction is mainly based on the self-waterproofing of the structure, the waterproofing effect is poor, and the water pressure and waterway of foundation pit seepage always exist and affect the waterproofing construction, it provides a waterproofing method for karst water-rich geological underground structures. Construction methods for water seepage control

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