A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prestressed pipe pile pulling-out construction method
The invention relates to a construction method for pulling out a prestressed pipe pile. The construction method comprises the steps of customizing a steel sleeve, driving the steel sleeve, precipitating and recycling slurry, pulling out the prestressed pipe pile, and backfilling, compacting and grouting a pile hole. The device has the beneficial effects that a customized steel sleeve bottom reinforcing technology is adopted, and the inverted triangular rib plates are adopted for reinforcing the bottom of the steel sleeve, so that the effect of reinforcing the steel sleeve is achieved, and meanwhile the device serves as a ground breaking auxiliary device; the high-pressure water pipe and the high-pressure air pipe are adopted at the bottom to form a high-pressure water-air curtain liquefied soil body, and the problem that a steel sleeve is difficult to drive is solved; a technology of treating and recycling slurry by using a three-stage sedimentation tank is adopted, and a filling material after the prestressed pipe pile is pulled out is processed and prepared by treating and recycling slurry solids by using the three-stage sedimentation tank, so that the construction cost is saved; a steel sleeve obstacle handling technology is adopted, and the problem that construction is hindered when a steel sleeve encounters obstacles in the steel sleeve driving process is solved through cooperation of a drilling machine and a drilling guide frame.
本发明涉及一种预应力管桩拔除施工方法，包括步骤：定制钢套筒、钢套筒打设、泥浆沉淀循环利用、预应力管桩拔除、桩孔回填压密注浆。本发明的有益效果是：采用定制化钢套筒底部加固技术，采用倒三角肋板对钢套筒底部进行加固，起到加固钢套筒的效果同时作为破土辅助装置；在底部采用高压水管和高压气管形成高压水气幕液化土体，解决了钢套筒打设困难的问题；采用三级沉淀池处置循环利用泥浆技术，预应力管桩拔除后填充料由三级沉淀池处置循环后泥浆固体物加工制成，节约了施工成本；采用钢套管遇障碍物处置技术，通过钻机和钻孔导向架配合解决钢套管打设过程中遇障碍物阻碍施工的问题。
Prestressed pipe pile pulling-out construction method
The invention relates to a construction method for pulling out a prestressed pipe pile. The construction method comprises the steps of customizing a steel sleeve, driving the steel sleeve, precipitating and recycling slurry, pulling out the prestressed pipe pile, and backfilling, compacting and grouting a pile hole. The device has the beneficial effects that a customized steel sleeve bottom reinforcing technology is adopted, and the inverted triangular rib plates are adopted for reinforcing the bottom of the steel sleeve, so that the effect of reinforcing the steel sleeve is achieved, and meanwhile the device serves as a ground breaking auxiliary device; the high-pressure water pipe and the high-pressure air pipe are adopted at the bottom to form a high-pressure water-air curtain liquefied soil body, and the problem that a steel sleeve is difficult to drive is solved; a technology of treating and recycling slurry by using a three-stage sedimentation tank is adopted, and a filling material after the prestressed pipe pile is pulled out is processed and prepared by treating and recycling slurry solids by using the three-stage sedimentation tank, so that the construction cost is saved; a steel sleeve obstacle handling technology is adopted, and the problem that construction is hindered when a steel sleeve encounters obstacles in the steel sleeve driving process is solved through cooperation of a drilling machine and a drilling guide frame.
本发明涉及一种预应力管桩拔除施工方法，包括步骤：定制钢套筒、钢套筒打设、泥浆沉淀循环利用、预应力管桩拔除、桩孔回填压密注浆。本发明的有益效果是：采用定制化钢套筒底部加固技术，采用倒三角肋板对钢套筒底部进行加固，起到加固钢套筒的效果同时作为破土辅助装置；在底部采用高压水管和高压气管形成高压水气幕液化土体，解决了钢套筒打设困难的问题；采用三级沉淀池处置循环利用泥浆技术，预应力管桩拔除后填充料由三级沉淀池处置循环后泥浆固体物加工制成，节约了施工成本；采用钢套管遇障碍物处置技术，通过钻机和钻孔导向架配合解决钢套管打设过程中遇障碍物阻碍施工的问题。
Prestressed pipe pile pulling-out construction method
预应力管桩拔除施工方法
JIANG LIBING (author) / WANG JIANFENG (author) / YUE LIZHANG (author) / WANG XINQUAN (author) / ZHEN LIANG (author) / CHENG SHIYANG (author) / TAO LI (author) / HOU YU (author) / ZHANG TAO (author)
2023-08-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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