Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of deep rock drilling occlusive pile of segmented construction
The invention belongs to the technical field of underground foundation pit engineering envelop enclosure construction, and particularly relates to a construction method of a deep rock drilling occlusive pile of segmented construction. The method comprises the following steps that (1) an intense weathering soil and rock layer is drilled to form holes; (2) a rotary drilling rig drills holes, and a punching and grabbing bucket cleans the holes; (3) a weak weathering hard rock layer is drilled to form holes; (4) a reducing reinforcement cage is mounted; (5) the reducing reinforcement cage is usedfor pouring concrete to form a pile; and (6) a sleeve pipe is pulled out. By means of the construction method, the technical difficulty of deep rock drilling occlusive pile construction in a high-strength hard rock stratum can be overcome, the construction footage is quick, the quality of a pile forming place and disturbance to surroundings can be effectively controlled, meanwhile, settling and deviation of surrounding buildings and pipelines can be effectively controlled, and the problems about water prevention and stress are solved.
本发明属于地下基坑工程围护结构施工技术领域，具体涉及一种分段施工深入岩钻孔咬合桩的施工方法，包括如下步骤：步骤(1)强风化土岩层钻进成孔；步骤(2)旋挖钻机钻孔，冲抓斗清孔；步骤(3)微风化硬岩层钻进成孔；步骤(4)安装变径钢筋笼；步骤(5)利用变径钢筋笼浇筑混凝土成桩；步骤(6)拔出套管。该施工方法能够克服在高强度硬岩地层中的深入岩钻孔咬合桩施工的技术难度，施工进尺快，并且能够有效控制成桩地质量及对周边环境的扰动，同时可有效控制周边构建筑物及管线的沉降和偏移，解决防水和受力问题。
Construction method of deep rock drilling occlusive pile of segmented construction
The invention belongs to the technical field of underground foundation pit engineering envelop enclosure construction, and particularly relates to a construction method of a deep rock drilling occlusive pile of segmented construction. The method comprises the following steps that (1) an intense weathering soil and rock layer is drilled to form holes; (2) a rotary drilling rig drills holes, and a punching and grabbing bucket cleans the holes; (3) a weak weathering hard rock layer is drilled to form holes; (4) a reducing reinforcement cage is mounted; (5) the reducing reinforcement cage is usedfor pouring concrete to form a pile; and (6) a sleeve pipe is pulled out. By means of the construction method, the technical difficulty of deep rock drilling occlusive pile construction in a high-strength hard rock stratum can be overcome, the construction footage is quick, the quality of a pile forming place and disturbance to surroundings can be effectively controlled, meanwhile, settling and deviation of surrounding buildings and pipelines can be effectively controlled, and the problems about water prevention and stress are solved.
本发明属于地下基坑工程围护结构施工技术领域，具体涉及一种分段施工深入岩钻孔咬合桩的施工方法，包括如下步骤：步骤(1)强风化土岩层钻进成孔；步骤(2)旋挖钻机钻孔，冲抓斗清孔；步骤(3)微风化硬岩层钻进成孔；步骤(4)安装变径钢筋笼；步骤(5)利用变径钢筋笼浇筑混凝土成桩；步骤(6)拔出套管。该施工方法能够克服在高强度硬岩地层中的深入岩钻孔咬合桩施工的技术难度，施工进尺快，并且能够有效控制成桩地质量及对周边环境的扰动，同时可有效控制周边构建筑物及管线的沉降和偏移，解决防水和受力问题。
Construction method of deep rock drilling occlusive pile of segmented construction
一种分段施工深入岩钻孔咬合桩的施工方法
LI YUJIANG (Autor:in) / XIE CHUNLAI (Autor:in) / HUANG RONGJI (Autor:in) / CAI GANG (Autor:in) / YANG JIAN (Autor:in) / ZHOU XUEBIN (Autor:in) / LIAO JIE (Autor:in) / JIANG WEIQIANG (Autor:in) / DONG HAILONG (Autor:in) / XU CHENGHAN (Autor:in)
19.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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