Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hole-forming construction process for hard rock large-diameter hole pile
The invention discloses a hard rock large-diameter hole pile hole-forming construction process which adopts a method of combining a rotary drilling process with a blasting process to solve the problems of high worker operation intensity, low construction efficiency and poor safety in existing mountainous area large-diameter hole pile hole-forming construction. Core soil is taken from the center of a hole pile through a rotary drilling rig, and then shot holes are manually drilled in the periphery of the core soil of the section of the hole pile for loose blasting; secondary drilling is conducted through the rotary drilling rig to take out muck, meanwhile, the hole wall is cleaned for protection, and circulation is conducted in sequence till the designed hole depth is achieved, and hole pile hole forming construction is completed; large-diameter hole pile hole forming is carried out by combining rotary drilling machine drilling with the blasting technology, the construction efficiency is greatly improved, the overall construction progress of a bridge is accelerated, the manual operation intensity is reduced, and the safety risk is reduced; the construction cost and the energy consumption are low, and good popularization prospects and application values are achieved.
本申请公开了一种硬质岩大直径孔桩成孔施工工艺，采用旋挖钻结合爆破工艺的方法，以解决现有山区大直径孔桩成孔施工存在工人作业强度高、施工效率低以及安全性差的问题。本申请利用旋挖钻机先对孔桩中心处取核心土，然后利用人工在孔桩断面核心土外围钻设炮眼进行松动爆破；再利用旋挖钻机取进行二次钻进取出渣土，同时清理孔壁进行防护，依次循环直至设计孔深完成孔桩成孔施工；本申请采用旋挖机钻进结合爆破工艺进行大直径孔桩成孔，施工效率大大提升，桥梁整体施工进度加快，人工作业强度降低，安全风险减小；施工成本、能耗低，具有良好的推广前景和应用价值。
Hole-forming construction process for hard rock large-diameter hole pile
The invention discloses a hard rock large-diameter hole pile hole-forming construction process which adopts a method of combining a rotary drilling process with a blasting process to solve the problems of high worker operation intensity, low construction efficiency and poor safety in existing mountainous area large-diameter hole pile hole-forming construction. Core soil is taken from the center of a hole pile through a rotary drilling rig, and then shot holes are manually drilled in the periphery of the core soil of the section of the hole pile for loose blasting; secondary drilling is conducted through the rotary drilling rig to take out muck, meanwhile, the hole wall is cleaned for protection, and circulation is conducted in sequence till the designed hole depth is achieved, and hole pile hole forming construction is completed; large-diameter hole pile hole forming is carried out by combining rotary drilling machine drilling with the blasting technology, the construction efficiency is greatly improved, the overall construction progress of a bridge is accelerated, the manual operation intensity is reduced, and the safety risk is reduced; the construction cost and the energy consumption are low, and good popularization prospects and application values are achieved.
本申请公开了一种硬质岩大直径孔桩成孔施工工艺，采用旋挖钻结合爆破工艺的方法，以解决现有山区大直径孔桩成孔施工存在工人作业强度高、施工效率低以及安全性差的问题。本申请利用旋挖钻机先对孔桩中心处取核心土，然后利用人工在孔桩断面核心土外围钻设炮眼进行松动爆破；再利用旋挖钻机取进行二次钻进取出渣土，同时清理孔壁进行防护，依次循环直至设计孔深完成孔桩成孔施工；本申请采用旋挖机钻进结合爆破工艺进行大直径孔桩成孔，施工效率大大提升，桥梁整体施工进度加快，人工作业强度降低，安全风险减小；施工成本、能耗低，具有良好的推广前景和应用价值。
Hole-forming construction process for hard rock large-diameter hole pile
一种硬质岩大直径孔桩成孔施工工艺
ZHOU GUOYUN (Autor:in) / SONG GUANGCHENG (Autor:in) / ZHOU HAIBO (Autor:in) / YUE KEQIN (Autor:in) / SHI HONGWEI (Autor:in) / YE PEI (Autor:in) / GUAN CHENGPIAO (Autor:in)
07.11.2023
Patent
Elektronische Ressource
Chinesisch
Pre-righting hole-forming construction method for extremely-hard inclined rock large-diameter pile
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023
Hole-forming construction method for large-diameter pile foundation
| Europäisches Patentamt | 2024
Hard rock stratum square pile hole forming pouring construction method
| Europäisches Patentamt | 2021
In-pile guide hole auxiliary pile-forming construction method for large-diameter pipe pile
| Europäisches Patentamt | 2024