Cast-in-place pile construction method capable of automatically adapting to soil layer

Abstract

The invention provides a cast-in-place pile construction method capable of automatically adapting to a soil layer, and belongs to the technical field of civil engineering. The cast-in-place pile construction method comprises the following steps that A, punching is carried out, in the pile rod feeding process, water washing is carried out on the hole wall of a pile hole synchronously, and easy-flowing silt on the hole wall is stripped; the flushing pressure generally follows the following rules: the closer to the bottom of the pile hole is, the higher the flushing pressure is; b, water pumping is conducted, specifically, after punching is completed, a mud-water mixture left in the pile hole is pumped away; c, a reinforcement cage is lowered in; and D, concrete is poured, and construction of a cast-in-place pile is completed after the concrete is solidified. The method has the advantages of a short construction period, high efficiency and the like.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and relates to a pile filling method that automatically adapts to soil layers. Background technique [0002] The basic steps in the construction of cast-in-place piles are: drilling, clearing the holes, lowering the reinforcement cage, and pouring concrete. The interlayer of sand and soil is produced in the component, which affects the strength of the pile body. The existing general method is: after the drilling is completed, repeatedly pour clean water into the hole to clean the bottom and wall of the hole, so that the easy-flowing sediment is mixed into the water to form sewage, and then the sewage is drawn out, and repeated speculations are repeated many times. Cleaning up the pile hole to the hole wall and bottom only leaves relatively hard rock and soil. This method not only prolongs the construction period, but also makes the construction difficult when the pile hole passes throu...

AI Technical Summary

Problems solved by technology

The existing general method is: after the drilling is completed, repeatedly pour clean water into the hole to clean the bottom and wall of the hole, so that the easy-flowing sediment is mixed into the water to form sewage, and then the sewage is drawn out, and repeated speculations are repeated many times. Cleaning up the pile hole to the hole wall and bottom only leaves relatively hard rock and soil. This method not only prolongs the construction period, but also makes the construction difficult when the pile hole passes through a complex multi-layer geological structure. In some cases, immersed pipes are required. Guard hole

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