Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pump suction type reverse circulation deepwater super-thick silt stratum large-diameter drilling and pile grouting construction technology
The invention discloses a pump suction type reverse circulation deepwater super-thick silt stratum large-diameter drilling pile grouting construction technology. The construction method comprises the following steps: (1) construction preparation: driving a circulating drilling machine to move through a crawler-type bearing vehicle, laying a steel plate at a position to be constructed of the bearing vehicle, moving the bearing vehicle to a specified position, aligning the circulating drilling machine with a drilling position, and pre-digging a circulating pool; (2) hole cleaning is conducted through a circulating drilling machine, specifically, the pile side soil bearing capacity is checked, the automatic embedding depth of the steel casing is determined, and pre-punching is conducted through the circulating drilling machine according to the embedding depth; 3, the steel pile casing is installed, specifically, the steel pile casing is placed in a drilled hole, and after the steel pile casing reaches the bottom of the hole, the position of the steel pile casing is adjusted, and it is guaranteed that the steel pile casing is vertically upward. According to the method, the hole collapse phenomenon is effectively reduced, so that the situation of slurry and gravel leakage is avoided, the drilling operation efficiency is improved, and the construction period is greatly shortened.
本发明公开了泵吸式反循环深水超厚粉砂地层大直径钻孔灌桩施工工艺，步骤如下：步骤1）：施工准备：通过履带式承载车带动循环钻孔机移动，并在承载车要施工的位置铺垫钢板，将承载车移动至指定位置，将循环钻孔机与钻孔位置对齐，并预挖设循环池；步骤2）：循环钻孔机清孔：对桩侧土承载力进行验算，确定钢护筒自动的埋置深度，根据埋置深度用循环钻孔机进行预打孔；步骤3）：安装钢护筒：将钢护筒放入打好的孔中，待护筒到达孔底后，调整护筒的位置，保证护筒竖直向上。本发明有效降低塌孔现象，从而避免了泥浆和砂石漏失的情况发生，提高钻孔作业的效率，大大减少了施工的周期。
Pump suction type reverse circulation deepwater super-thick silt stratum large-diameter drilling and pile grouting construction technology
The invention discloses a pump suction type reverse circulation deepwater super-thick silt stratum large-diameter drilling pile grouting construction technology. The construction method comprises the following steps: (1) construction preparation: driving a circulating drilling machine to move through a crawler-type bearing vehicle, laying a steel plate at a position to be constructed of the bearing vehicle, moving the bearing vehicle to a specified position, aligning the circulating drilling machine with a drilling position, and pre-digging a circulating pool; (2) hole cleaning is conducted through a circulating drilling machine, specifically, the pile side soil bearing capacity is checked, the automatic embedding depth of the steel casing is determined, and pre-punching is conducted through the circulating drilling machine according to the embedding depth; 3, the steel pile casing is installed, specifically, the steel pile casing is placed in a drilled hole, and after the steel pile casing reaches the bottom of the hole, the position of the steel pile casing is adjusted, and it is guaranteed that the steel pile casing is vertically upward. According to the method, the hole collapse phenomenon is effectively reduced, so that the situation of slurry and gravel leakage is avoided, the drilling operation efficiency is improved, and the construction period is greatly shortened.
本发明公开了泵吸式反循环深水超厚粉砂地层大直径钻孔灌桩施工工艺，步骤如下：步骤1）：施工准备：通过履带式承载车带动循环钻孔机移动，并在承载车要施工的位置铺垫钢板，将承载车移动至指定位置，将循环钻孔机与钻孔位置对齐，并预挖设循环池；步骤2）：循环钻孔机清孔：对桩侧土承载力进行验算，确定钢护筒自动的埋置深度，根据埋置深度用循环钻孔机进行预打孔；步骤3）：安装钢护筒：将钢护筒放入打好的孔中，待护筒到达孔底后，调整护筒的位置，保证护筒竖直向上。本发明有效降低塌孔现象，从而避免了泥浆和砂石漏失的情况发生，提高钻孔作业的效率，大大减少了施工的周期。
Pump suction type reverse circulation deepwater super-thick silt stratum large-diameter drilling and pile grouting construction technology
泵吸式反循环深水超厚粉砂地层大直径钻孔灌桩施工工艺
ZHANG QINGHAO (Autor:in) / WANG DALONG (Autor:in) / MA YUYANG (Autor:in) / WANG DEHUA (Autor:in) / HAM KYOUNG-TAE (Autor:in) / WU SHIJIAN (Autor:in) / CHEN XUEFENG (Autor:in) / GAO PENGFEI (Autor:in) / LI KUN (Autor:in) / LU TONGWEI (Autor:in)
10.11.2023
Patent
Elektronische Ressource
Chinesisch
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