PHC pipe-pile pile-anchor combined support water stop construction method

Abstract

The present invention relates to a PHC tube pile-anchor combination supporting water-stopping construction method which can effectively settle the problems of no security in the downhole operation, settlement or split of building at the circumference of the building pit, and the damage to the underground conduit and pipeline of the city. The method comprises the steps of firstly preparing a PHC tube pile static pressure supporting pile, measuring and aligning, arranging the piling machine to the position, checking the precast pile, hoisting the precast pile, stabilizing the pile, pressing the pile, pile feeding, then producing a deep mixing pile, clearing the barrier on the ground, positioning the deep-layer mixer, adjusting to horizontal, premixing and subsiding to the reinforcing depth, preparing the cement slurry, spraying and mixing for lifting to the slurry stopping surface, repeatedly mixing for subsiding to the reinforcing depth, injecting the slurry or mixing for lifting to the slurry stopping surface; and lastly preparing soil-nail wall and maintaining the concrete surface. The invention has the advantages of strong supporting capability, broad application sphere, combining the functions of supporting, water stopping and the like, lower fabricating cost, easy and shortcut construction, being safe and reliable, and tremendous economic and social benefit.

Description

1. Technical field [0001] The invention relates to the construction field, in particular to a construction method for PHC pipe pile, pile and anchor combined support and water stop. 2. Background technology [0002] With the rapid development of urbanization in our country, buildings have transitioned from multi-storey to high-rise. Especially in the past ten years, the buildings in large and medium-sized cities have been dominated by buildings with more than ten floors, and the number of high-rise buildings has gradually increased. The overall technical level of the construction industry has been improved. It has been greatly improved. In order to adapt to the current development situation, the use of advanced new technologies in construction has become a common problem, but at the same time there are also problems of one kind or another. The hectic scene of pumping and piling up soil at the digging pile site and the unsafe underground operations, the settlement or cracks o...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation and the actual needs of the construction industry, the purpose of the present invention is to provide a PHC pile-pile-anchor combined support and water-stop construction method, which can effectively solve the problem of unsafe underground operations, settlement or cracks in buildings around foundation pits, urban underground pipelines, etc. 1. The problem of pipeline damage, the technical solution to it is, first of all, prepare the PHC pipe pile static pressure support pile, the method is: measure and set out the line, put the pile driver in place, check the prefabricated pile, lift the prefabricated pile, stabilize the pile, press Pile, sending pile; making deep mixing pile, the method is: clearing the ground, positioning and leveling the deep mixing machine, pre-mixing and sinking to the reinforcement depth, preparing cement slurry, stirring while spraying and lifting to the stop slurry surface, repeated mixing and sinking To the reinforcement depth, spray grout or stir to lift to the grout stop surface; finally prepare the soil nail wall (prestressed anchor) method is: earthwork excavation, measurement, setting out, drilling, pressure grouting, curing, tensioning (limited to Prestressed anchor), anchor head (anchor) locking, binding steel mesh, shotcrete, concrete surface maintenance

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