Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reverse circulation hole forming construction method
The invention relates to the technical field of cast-in-place pile construction, in particular to a reverse circulation hole-forming construction method which comprises the following steps of construction preparation, pile casing embedding, drilling hole-forming, slurry changing and hole cleaning and concrete pouring. And a reverse circulation pump sucks, changes slurry and cleans the drilled hole from top to bottom. Circulating slurry with drilling slag is sucked out through the reverse circulation drilling rod, the invalid labor of repeatedly grinding the drilling slag is greatly reduced, and the drilling efficiency can be greatly improved. Meanwhile, by means of the reverse circulation pump suction, slurry replacement and hole cleaning mode from top to bottom, the pump suction point position during hole cleaning is changed, the local slurry drilling slag slurry replacement and discharge effect is enhanced, and the operation efficiency and quality are effectively improved.
本申请涉及灌注桩施工的技术领域，尤其是涉及一种反循环成孔施工方法，其包括以下步骤，施工准备、埋设护筒、钻进成孔、换浆清孔和混凝土灌注：在换浆清孔时通过控制钻杆从上到下设置的若干通孔依序打开，对钻孔进行从上到下的反循环泵吸换浆清孔。本申请通过反循环钻杆吸出夹带钻碴的循环泥浆，大大减少重复碾磨钻碴的无效劳动，可使钻进效率大幅度提高。同时，本申请通过从上到下的反循环泵吸换浆清孔方式，改变了清孔时的泵吸点位，加强了对局部泥浆钻渣换浆排出效果，有效提高了作业效率和质量。
Reverse circulation hole forming construction method
The invention relates to the technical field of cast-in-place pile construction, in particular to a reverse circulation hole-forming construction method which comprises the following steps of construction preparation, pile casing embedding, drilling hole-forming, slurry changing and hole cleaning and concrete pouring. And a reverse circulation pump sucks, changes slurry and cleans the drilled hole from top to bottom. Circulating slurry with drilling slag is sucked out through the reverse circulation drilling rod, the invalid labor of repeatedly grinding the drilling slag is greatly reduced, and the drilling efficiency can be greatly improved. Meanwhile, by means of the reverse circulation pump suction, slurry replacement and hole cleaning mode from top to bottom, the pump suction point position during hole cleaning is changed, the local slurry drilling slag slurry replacement and discharge effect is enhanced, and the operation efficiency and quality are effectively improved.
本申请涉及灌注桩施工的技术领域，尤其是涉及一种反循环成孔施工方法，其包括以下步骤，施工准备、埋设护筒、钻进成孔、换浆清孔和混凝土灌注：在换浆清孔时通过控制钻杆从上到下设置的若干通孔依序打开，对钻孔进行从上到下的反循环泵吸换浆清孔。本申请通过反循环钻杆吸出夹带钻碴的循环泥浆，大大减少重复碾磨钻碴的无效劳动，可使钻进效率大幅度提高。同时，本申请通过从上到下的反循环泵吸换浆清孔方式，改变了清孔时的泵吸点位，加强了对局部泥浆钻渣换浆排出效果，有效提高了作业效率和质量。
Reverse circulation hole forming construction method
一种反循环成孔施工方法
WAN RUIFEN (Autor:in)
17.11.2023
Patent
Elektronische Ressource
Chinesisch
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