Construction method for forming hole in follow-up sleeve pile foundation

Abstract

The invention discloses a construction method for forming a hole in a follow-up sleeve pile foundation. The construction method specially comprises the following steps: 1, before the pile foundation is constructed, a site needing the pile foundation is subjected to smoothing construction by a laser levelling machine to form a smooth operation platform, after the construction is completed, a placing point is accurately measured by a measuring staff, and the pile center position is determined, and a crossed pile is driven to the measured position; and 2, the pile center position is subjected tosoil loosening by a soil loosening machine at the measured pile center position, wherein the soil loosening range diameter is 400-450 cm. The invention relates to the technical field of driven cast-in-place piles. According to the construction method, during the hole drilling process, noise generated in hole drilling is absorbed through the cooperation between a noise reducing sleeve and a supporting ring, the influence of too large noise generated in hole drilling on living environments of surrounding residents is avoided, meanwhile, double pumps are adopted to alternately replace mud in thehole, so that the phenomenon of hole drilling deviation due to soil property can be avoided.

Description

technical field [0001] The invention relates to the technical field of existing sinking pipe grouting piles, in particular to a hole-forming construction method for follow-up casing pile foundations. Background technique [0002] The existing immersed tube pile is one of many types of pile foundations in civil engineering. It adopts the steel pipe (casing) that is suitable for the design size of the pile, puts the pile tip on the end and sinks into the soil, hangs the steel skeleton in the casing, and then vibrates or hammers the pipe while pouring concrete , use the vibration when pulling out the pipe to tamp the concrete to form the required cast-in-place pile. This construction method is suitable for the situation where there is groundwater, quicksand and silt. Using hammering pile sinking equipment to sink pipes and pull pipes into piles is called hammering sinking pipe grouting piles. Using a vibrator to vibrate the immersed tube and pull it out to form a pile is cal...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a construction method for follow-up casing pile foundation hole formation, which solves the problem that every construction will affect the living environment of nearby residents, and the soil quality is often relatively hard when the casing is buried. However, the casing is damaged, the construction period is delayed, and at the same time, when the hammer is drilling, it is easily affected by the soil quality under the ground, which will cause the drilling to shift, and the following work cannot be carried out.