Waterproof construction method of pile head of anchor rod static pressure pile

Abstract

The invention discloses a waterproof construction method of a pile head of an anchor rod static pressure pile. The method comprises the following steps that a base plate cushion layer is constructed; steel plate waterproof casing pipes are embedded; a waterproof system is constructed; base plate reinforcing steel bars are bundled, concrete is poured, so that a structural base plate is formed, and a pile pressing hole is reserved; after the concrete strength of the structural base plate meets the requirement, the static pressure pile is pressed to be constructed to a projected depth; pile splicing construction of the static pressure pile is carried out; pile breaking and sealing construction of the static pressure pile is conducted; after the pile end of the static pressure pile is completely closed, a base plate top face waterproof layer is constructed. By means of the waterproof construction method of the pile head of the anchor rod static pressure pile, the technical problem of waterproof construction at the joint of the subsurface structure self-waterproofing base plate and the pile head of the anchor rod static pressure pile is solved, due to design of the steel plate waterproof casing pipes, additional arrangement of a waterproof paint layer, optimization of the mode of the pile pressing hole and the like, a foundation is reinforced, watertightness is also strongly guaranteed, operation is simple in the constructing process, construction is convenient and fast, constructing efficiency can be improved, meanwhile, structural attractiveness is guaranteed, and the popularization and application prospect is wide.

Description

Technical field [0001] The invention belongs to the field of waterproofing of the bottom plate of an underground space project, and specifically relates to a waterproof construction method of an anchor static pressure pile pile head. Background technique [0002] Since most municipal projects are comprehensive hub buildings that integrate rail transit, public transportation hubs, social parking lots and elevated roads, complex loads will cause uneven foundation settlement, and the construction area of ​​underground space projects is large, and extremes may be encountered locally. Poor geological conditions, so after the completion of the foundation slab construction of the supporting underground project, local foundation reinforcement is required for the parts with extremely poor geological conditions. Because the local foundation reinforcement construction is carried out after the foundation slab is completed, the large-scale machinery does not have working space, and the local ...

AI Technical Summary

Problems solved by technology

However, after the construction of local foundation reinforcement anchor static pressure piles is completed, the waterproofing of the lower waterproof membrane layer and the self-waterproof concrete layer of the bottom plate has failed, and only the top waterproof layer of the bottom plate is left to function. Water seepage often occurs in the location

The reason is that the waterproofing at the pile head nodes of the anchor static pressure pile was ignored during the construction. Although the structural foundation has been reinforced, there are problems with waterproofing, which has a negative impact on the use and function of the structure.

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