Joint structure between ground and wall and sandy soil layer foundation pit construction method

Abstract

The invention provides a joint structure between ground and a wall and a sandy soil layer foundation pit construction method. A lock catch pipe is installed at the position of an H-steel connector and can effectively ensure bonding of the H-steel connector and have the effect of preventing concrete flowing around. In addition, wing plates are arranged on two sides of H-steel and can prevent a gap between the H-steel and a foundation pit groove wall from being overlarge and accordingly prevent concrete from easily flowing out of a groove section, and accordingly the water seepage and leakage problem at the joint position between the ground and the wall is solved. Furthermore, by adopting the sandy soil layer foundation pit construction method, good precipitation treatment can be performed on a foundation pit, the water seepage and leakage risk is avoided during construction, and the risk of deep foundation pit construction in a sandy soil layer can be further reduced.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a construction method for a joint structure between a ground wall and a deep foundation pit in a sandy soil layer. Background technique [0002] The construction of deep foundation pit is an underground concealed project, and there are certain risks. There are many unknowns in its construction. In some complex strata, especially in deep sandy soil layers, due to the water permeability of deep sandy soil layers Well, so it is easy to produce adverse geological phenomena such as quicksand under flowing water conditions. Water leakage at the ground-wall joints often occurs when deep foundation pits are constructed in this sandy soil. If the groundwater cannot be drained in time, there will be potential safety hazards during the excavation of the foundation pit and the difficulty of structural waterproofing will cause water leakage in structural walls and panels. [0003] At pr...

AI Technical Summary

Problems solved by technology

If the groundwater cannot be drained in time, there will be safety hazards during excavation of the foundation pit, and the construction of structural waterproofing will be difficult, resulting in water leakage in structural walls and panels.

[0003] At present, a set of well-guided construction technology has not been formed for deep foundation pit construction in sandy soil layers, and there is no good method for how to solve the water leakage phenomenon at the joints of the ground wall. easy to solve

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