Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method adopting rock-socketed drill bit to be matched with air-entrapping type long auger drilling press-grouting pile
The invention belongs to the technical field of drilling press-grouting pile construction application, and particularly relates to a construction method adopting a rock-socketed drill bit to be matched with an air-entrapping type long spiral drilling press-grouting pile. Comprising a long spiral drill rod, the long spiral drill rod comprises a drill rod body and a drill bit arranged at the bottom of the drill rod body, spiral blades are arranged on the drill rod body, and a high-pressure air pipe is arranged in the drill rod body. The rock-socketed capability of the hard alloy cutting pick is fully utilized, the rock-socketed effect is achieved, and the drilling efficiency is improved. Through the arrangement of the high-pressure spray head, high-pressure air in the air compressor is sent to the bottom of the drill bit, and the drill rod is isolated from the hole wall according to the air isolation principle, so that the problems that drilling cannot be conducted due to pasting and the drill rod is locked are solved.
本发明属于钻孔压灌桩施工应用技术领域，尤其涉及一种采用嵌岩钻头配合加气式长螺旋钻孔压灌桩施工方法。包括长螺旋钻杆，所述长螺旋钻杆包括钻杆本体以及设置在钻杆本体底部的钻头，所述钻杆本体上设置有螺旋叶片，所述钻杆本体内设置有高压气管，本发明通过对现有的长螺旋钻杆的结构进行改进，利用在钻头上镶嵌硬质合金截齿，以充分利用合硬质合金截齿的嵌岩能力，达到入岩效果，提高钻进效率；通过高压喷头的设置，将空气压缩机内的高压气体送至钻头底部，利用空气隔离原理将钻杆与孔壁隔离，以解决糊钻不进尺、钻杆抱死问题。
Construction method adopting rock-socketed drill bit to be matched with air-entrapping type long auger drilling press-grouting pile
The invention belongs to the technical field of drilling press-grouting pile construction application, and particularly relates to a construction method adopting a rock-socketed drill bit to be matched with an air-entrapping type long spiral drilling press-grouting pile. Comprising a long spiral drill rod, the long spiral drill rod comprises a drill rod body and a drill bit arranged at the bottom of the drill rod body, spiral blades are arranged on the drill rod body, and a high-pressure air pipe is arranged in the drill rod body. The rock-socketed capability of the hard alloy cutting pick is fully utilized, the rock-socketed effect is achieved, and the drilling efficiency is improved. Through the arrangement of the high-pressure spray head, high-pressure air in the air compressor is sent to the bottom of the drill bit, and the drill rod is isolated from the hole wall according to the air isolation principle, so that the problems that drilling cannot be conducted due to pasting and the drill rod is locked are solved.
本发明属于钻孔压灌桩施工应用技术领域，尤其涉及一种采用嵌岩钻头配合加气式长螺旋钻孔压灌桩施工方法。包括长螺旋钻杆，所述长螺旋钻杆包括钻杆本体以及设置在钻杆本体底部的钻头，所述钻杆本体上设置有螺旋叶片，所述钻杆本体内设置有高压气管，本发明通过对现有的长螺旋钻杆的结构进行改进，利用在钻头上镶嵌硬质合金截齿，以充分利用合硬质合金截齿的嵌岩能力，达到入岩效果，提高钻进效率；通过高压喷头的设置，将空气压缩机内的高压气体送至钻头底部，利用空气隔离原理将钻杆与孔壁隔离，以解决糊钻不进尺、钻杆抱死问题。
Construction method adopting rock-socketed drill bit to be matched with air-entrapping type long auger drilling press-grouting pile
采用嵌岩钻头配合加气式长螺旋钻孔压灌桩施工方法
LI LIANGLIANG (Autor:in) / ZHANG JIANBO (Autor:in) / XUE FALING (Autor:in) / FENG XIAODONG (Autor:in) / CUI XIANGDONG (Autor:in) / GAI YU (Autor:in) / ZHOU WEISHENG (Autor:in) / ZHANG ZHAOLEI (Autor:in) / WEI XIANGJIANG (Autor:in) / LIU WEIMIN (Autor:in)
09.08.2024
Patent
Elektronische Ressource
Chinesisch
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