Method for in-hole guiding deviation rectification and steel pipe column straightening based on one-column-one-pile back insertion method

Abstract

The invention relates to a method for in-hole guiding deviation rectification and steel pipe column straightening based on a one-column-one-pile back insertion method. The method comprises the steps that (1) a drilling machine is removed, and a hole opening is cleaned; (2) a 5-meter-long guiding deviation rectification device is placed in a long pile casing; (3) hydraulic oil pipe lines are connected; (4) a back insertion straightening device is placed, centered and leveled; (5) a hydraulic oil pipe of the in-hole guiding deviation rectification device is connected with a control console of the back insertion straightening device; (6) a steel pipe column is inserted into a hole to the position 50 cm higher than a concrete surface in the hole through the back insertion straightening device; (7) a support of the guiding deviation rectification device is unfolded and abuts against the outer wall of the steel pipe column; (8) the perpendicularity of the steel pipe column is adjusted; (9) the guiding deviation rectification device is locked; (10) the steel pipe column is inserted by a designed depth; (11) the perpendicularity of the steel pipe column is checked; (12) the guiding deviation rectification device is removed and hoisted away. According to the method for in-hole guiding deviation rectification and steel pipe column straightening based on the one-column-one-pile back insertion method, the difficulty in perpendicularity adjustment in the one-column-one-pile back insertion construction process is effectively reduced, and work efficiency and precision of steel pipe column straightening are improved.

Description

technical field [0001] The present invention relates to an in-hole guiding and correcting device and method based on the post-insertion method of one column and one pile, in particular to a method for straightening one column and one pile of steel pipe columns by simultaneously using the ground fulcrum and the underground hole guiding and correcting device . Background technique [0002] With the continuous development of new-type urbanization, urban land resources are becoming increasingly scarce, and high-rise, super high-rise buildings, transportation, and commercial facilities are increasingly turning to underground space development, which is different from the traditional excavation method of foundation pit excavation. In contrast, the upside-down method construction technology, which has many advantages such as reducing energy consumption, saving resources, shortening the total construction period, helping to protect the environment and making the on-site operating en...

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Problems solved by technology

[0005] The present invention aims to solve the problems of the existing one-column-one-pile steel pipe column straightening process such as short force arm, difficult adjustment, and low work efficiency, and proposes a method for guiding deviation correction in the hole and straightening steel pipe column based on the one-column-one-pile post-insertion method

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