Deviation rectifying method and structure for inclined prestress pipe pile

Abstract

The invention discloses a deviation rectifying method and structure for an inclined prestress pipe pile. When deviation rectifying is conducted on the inclined pipe pile, the method comprises the following steps that firstly, cushion layer repairing is conducted; secondly, deviation rectifying positioning is conducted; thirdly, pipe pile body hole cleaning is conducted; fourthly, pipe pile side soil taking is conducted; fifthly, a jack is arranged in place, and the pile is pushed to move; sixthly, mixture filling is conducted; and seventhly, pipe pile hole core filling is conducted, in other words, a pre-fabricated reinforcement cage is installed in pile holes through hoisting equipment, and concrete is poured in the pile holes to conduct pipe pile hole core filling. The deviation rectifying method and structure have the beneficial effects of being easy to construct and low in manufacturing cost and also have the beneficial effect of being high in safety. The prestress pipe pile subjected to deviation rectifying through the deviation rectifying method and structure can completely reach the national safety code standard. The deviation rectifying method and structure are especially suitable for conducting deviation rectifying treatment on first-kind and second-kind inclined pipe piles in which the pipe pile inclination degree exceeds the standard and the integrity of pile bodies of the inclined pipe piles is quite complete, wherein the first-kind piles and the second-kind piles are classified according to the small strain detection result of the piles.

Description

technical field [0001] The invention relates to a deviation correction method and structure of an inclined prestressed pipe pile, belonging to the technical field of deviation correction of building foundation pipe piles. Background technique [0002] The inclination of prestressed pipe piles is an engineering problem often encountered in projects in weak geological conditions. Poor geological conditions, thick silty soil layers, chaotic piling routes, insufficient protection for finished piles, improper excavation of foundation pits for building foundations, and irregular push loads will all cause tilting of prestressed pipe piles. According to the "Code for Acceptance of Foundation Construction Quality" and design drawings: After the pipe pile is inclined, the deviation of the inclination of the inclined pile shall not be greater than 15% of the tangent value of the inclination angle (the inclination angle of the pipe pile is the longitudinal centerline of the pile and the...

AI Technical Summary

Problems solved by technology

Because this type of pile is completed under the premise of exceeding the regulations, this method in the prior art often has potential safety hazards and acceptance risks, and is uncontrollable.

At present, when the inclination index of the pipe pile exceeds the limit, the above-mentioned conservative method is used in the prior art to repair the pile foundation. Uncontrollable safety hazards, and there are still problems such as difficult construction and high cost, so the existing treatment method for inclined prestressed pipe piles is still not ideal enough to meet the needs of use

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