Construction method for tube-sinking cast-in-situ pile

Abstract

The invention discloses a construction method for a tube-sinking cast-in-situ pile. The construction method for the tube-sinking cast-in-situ pile comprises the following steps that: (1) carrying outa reconnaissance survey on a terrain, and working out a pile sinking scheme; (2) cleaning sundries, including weeds, trees, garbage and the like, on the ground; (3) placing a machine to a specific place; (4) measuring a technical performance index by a worker; (5) ensuring that a number of tested piles is not smaller than two; (6) positioning a place where pile sinking needs to be carried out, anddrawing a positioned central point; (7) aiming at the positioned central point by the pile tip of the pile to correct the pile; and (8) in a pile sinking process, enabling the worker to move backwards while the worker drives the pile so as to prevent the worker to be in contact with a constructed pile position in a pile sinking process, and positioning the driven pile to prevent the driven pile from deviating. After primary scheme drafting, the ground is tested, then, secondary scheme drafting is carried out to avoid problem complication in a subsequent pile driving process, piles are pulledout at a constant speed to control concrete to enter pile holes, and therefore, a purpose that the pile holes are full of the concrete is realized.

Description

technical field [0001] The invention relates to the field of sinking tube grouting piles, in particular to a construction method of sinking tube grouting piles. Background technique [0002] Immersed tube cast-in-situ pile is one of many types of pile foundations in civil engineering. It adopts steel pipes (ie, sleeves) that match the design size of the piles, and sinks them into the soil after the pile tips are placed on the ends. [0003] In the process of pile driving, traditional sinking pipe grouting piles will have pile driving deviation, and the pile sinking will be carried out directly after a plan is drawn up, which will lead to complications in the subsequent pile driving process, and uneven pile pulling speed will occur during pile pulling, resulting in subsequent When concrete is added, voids appear in the pile holes. Contents of the invention [0004] The purpose of the present invention is to provide a construction method for sinking pipe grouting piles, whi...