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A platform for research: civil engineering, architecture and urbanism
Construction method of composite foundation of large-tonnage crawler crane
The invention relates to a construction method of a composite foundation of a large-tonnage crawler crane. The construction method comprises the following steps of construction preparation; platform widening and fabricated retaining wall construction; and railway business line isolation protection system construction. The construction method of the composite foundation of the large-tonnage crawlercrane has the beneficial effects that a large-tonnage crawler crane operation activity area is reinforced by adopting a composite piled raft foundation formed by combining the cast-in-situ bored piles and profile steel, the bearing capacity of the foundation can be improved to the maximum extent, foundation settlement can be reduced, and the adverse effect on a railway business line can be reduced, accurate positioning of the profile steel can be achieved by adopting a profile steel positioning system, the difficulty of site construction is reduced, the engineering quality and efficiency canbe improved advantageously, and the hole forming edge of a stress release hole adopts steel casing for wall protection, so that the hole collapse phenomenon in the construction process is effectivelyavoided, and the hole forming quality of the stress release hole is ensured, the steel casing is easy to assemble and recyclable, grooves and convex grooves are formed, the fixing is conducted throughhigh-strength bolts, the installing and uninstalling difficulty is reduced, the splicing stability is good, and the construction efficiency is high.
本发明涉及一种大吨位履带吊车复合式基础的施工方法，包括：施工准备；站台拓宽，装配式挡墙施工；铁路营业线隔离保护体系施工。本发明的有益效果是：采用钻孔灌注桩与型钢组合的复合式桩筏基础对大吨位履带吊车作业活动区域进行加固，能最大限度的提高地基的承载力，降低地基沉降，减小对铁路营业线的不良影响，同时采用型钢定位系统，可实现型钢的精准定位，降低了现场施工的难度，有助于提高工程质量和效率；应力释放孔边成孔边采用钢护筒护壁，有效避免了施工过程中出现的坍孔现象，确保了应力释放孔的成孔质量；钢护筒为易拼装可回收式，通过设置凹槽和凸槽，采用高强螺栓固定，降低了安装与拆卸的难度，拼接稳定性好，施工效率高。
Construction method of composite foundation of large-tonnage crawler crane
The invention relates to a construction method of a composite foundation of a large-tonnage crawler crane. The construction method comprises the following steps of construction preparation; platform widening and fabricated retaining wall construction; and railway business line isolation protection system construction. The construction method of the composite foundation of the large-tonnage crawlercrane has the beneficial effects that a large-tonnage crawler crane operation activity area is reinforced by adopting a composite piled raft foundation formed by combining the cast-in-situ bored piles and profile steel, the bearing capacity of the foundation can be improved to the maximum extent, foundation settlement can be reduced, and the adverse effect on a railway business line can be reduced, accurate positioning of the profile steel can be achieved by adopting a profile steel positioning system, the difficulty of site construction is reduced, the engineering quality and efficiency canbe improved advantageously, and the hole forming edge of a stress release hole adopts steel casing for wall protection, so that the hole collapse phenomenon in the construction process is effectivelyavoided, and the hole forming quality of the stress release hole is ensured, the steel casing is easy to assemble and recyclable, grooves and convex grooves are formed, the fixing is conducted throughhigh-strength bolts, the installing and uninstalling difficulty is reduced, the splicing stability is good, and the construction efficiency is high.
本发明涉及一种大吨位履带吊车复合式基础的施工方法，包括：施工准备；站台拓宽，装配式挡墙施工；铁路营业线隔离保护体系施工。本发明的有益效果是：采用钻孔灌注桩与型钢组合的复合式桩筏基础对大吨位履带吊车作业活动区域进行加固，能最大限度的提高地基的承载力，降低地基沉降，减小对铁路营业线的不良影响，同时采用型钢定位系统，可实现型钢的精准定位，降低了现场施工的难度，有助于提高工程质量和效率；应力释放孔边成孔边采用钢护筒护壁，有效避免了施工过程中出现的坍孔现象，确保了应力释放孔的成孔质量；钢护筒为易拼装可回收式，通过设置凹槽和凸槽，采用高强螺栓固定，降低了安装与拆卸的难度，拼接稳定性好，施工效率高。
Construction method of composite foundation of large-tonnage crawler crane
大吨位履带吊车复合式基础的施工方法
LIAN LIANGLIANG (author) / ZHANG ZHENGSHAN (author) / YIN HUASONG (author) / LI YUNLONG (author) / ZHANG ZHICHUN (author) / DI BO (author) / ZHAO LONG (author) / LYU JIANDA (author) / ZENG YONGMING (author) / GAO CHUNPENG (author)
2020-06-09
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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