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A platform for research: civil engineering, architecture and urbanism
Inclined foundation pile pull-back traction deviation correction method
The invention discloses an inclined foundation pile pull-back traction deviation correction method, which adopts a mode of drilling pressure relief and guiding on the rear side and the back side in the deviation direction of a pile foundation pile and pull-back traction on the top of the foundation pile to correct deviation, so that the damage rate of a pile body in the deviation correction process of a cast-in-place pile is reduced, the quality of the pile body is improved, and the deviation correction speed of the pile is accelerated. The flexural capacity of the pile foundation is calculated according to the offset pile foundation section, the concrete strength, reinforcing bars and other information, the maximum pull-back force is obtained through calculation according to the flexural capacity and the pull-back traction stress analysis condition, it is ensured that the bending moment borne by the pile foundation under the maximum pull-back force is smaller than the flexural capacity, and the pile foundation is prevented from being damaged. The problem that an existing pile foundation deviation rectifying technology is prone to causing damage to a pile body is solved.
本发明公开了一种倾斜基桩回拉牵引纠偏方法，采取桩基桩偏移方向的后侧背侧进行钻孔卸压和导向，基桩顶部回拉牵引的方式进行纠偏，降低了灌注桩纠偏过程中桩身的受损率，提高了桩身质量，加快了桩纠偏的速度。根据偏移的桩基截面、混凝土强度、配筋等信息计算桩基抗弯承载力，根据抗弯承载力及回拉牵引受力分析情况，计算获得最大回拉力，确保最大回拉力下桩基受到的弯矩小于抗弯承载力，避免桩基发生破坏。本发明解决了现有的桩基纠偏技术容易造成桩身损坏的问题。
Inclined foundation pile pull-back traction deviation correction method
The invention discloses an inclined foundation pile pull-back traction deviation correction method, which adopts a mode of drilling pressure relief and guiding on the rear side and the back side in the deviation direction of a pile foundation pile and pull-back traction on the top of the foundation pile to correct deviation, so that the damage rate of a pile body in the deviation correction process of a cast-in-place pile is reduced, the quality of the pile body is improved, and the deviation correction speed of the pile is accelerated. The flexural capacity of the pile foundation is calculated according to the offset pile foundation section, the concrete strength, reinforcing bars and other information, the maximum pull-back force is obtained through calculation according to the flexural capacity and the pull-back traction stress analysis condition, it is ensured that the bending moment borne by the pile foundation under the maximum pull-back force is smaller than the flexural capacity, and the pile foundation is prevented from being damaged. The problem that an existing pile foundation deviation rectifying technology is prone to causing damage to a pile body is solved.
本发明公开了一种倾斜基桩回拉牵引纠偏方法，采取桩基桩偏移方向的后侧背侧进行钻孔卸压和导向，基桩顶部回拉牵引的方式进行纠偏，降低了灌注桩纠偏过程中桩身的受损率，提高了桩身质量，加快了桩纠偏的速度。根据偏移的桩基截面、混凝土强度、配筋等信息计算桩基抗弯承载力，根据抗弯承载力及回拉牵引受力分析情况，计算获得最大回拉力，确保最大回拉力下桩基受到的弯矩小于抗弯承载力，避免桩基发生破坏。本发明解决了现有的桩基纠偏技术容易造成桩身损坏的问题。
Inclined foundation pile pull-back traction deviation correction method
倾斜基桩回拉牵引纠偏方法
ZHOU YANG (author) / ZHOU HAIGUI (author) / LIU MENGMENG (author) / HE WEIYONG (author) / ZHONG CHAO (author) / LIU JIANHUI (author)
2024-02-23
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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