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A platform for research: civil engineering, architecture and urbanism
Underground pile foundation clearing construction method under complex environment
The invention relates to the technical field of building construction, in particular to an underground pile foundation clearing construction method under a complex environment. The method includes thefollowing steps that bearing table breaking is performed on a pile foundation, a pile head is cleared out, and the pile hole center position is measured according to the pile head; a drilling rig isinstalled above a pile hole so that a drill bit of the drilling rig and the pile hole center position in step 1 can be aligned; a pile casing is pressed onto the pile foundation, the drilling rig is started to break pile foundation concrete, and the breaking depth does not exceed the press-in depth of the pile casing; pile foundation rebars and slag blocks remaining in the pile casing are clearedaway; the pile hole depth is measured after clearing is completed; and according to the measured pile hole depth, a guide pipe in a corresponding depth is laid down into the pile hole, mortar is poured in the guide pipe, the pile casing and the guide pipe in the pile hole are pulled out at the same time in the pouring process, and the lower ends of the pile casing and the guide pipe are both located below the pouring face in the pull-out process. It is guaranteed that in the pile foundation breaking process, the surrounding building is not affected, and the structural stability of the pile hole after backfilling is guaranteed.
本发明涉及建筑施工技术领域，具体涉及一种复杂环境下的地下桩基清除施工方法，其步骤如下，对桩基进行承台破除，清理出桩头，依据桩头测量出桩孔中心位置；在桩孔上方安装钻机，使钻机的钻头与所述步骤1中的桩孔中心位置对齐；将护筒压入到桩基上，启动钻机对桩基混凝土进行破除，破除深度不超过护筒的压入深度；清理护筒内残留的桩基钢筋及渣块；清理完成后测量桩孔深度；依据测量出的桩孔深度，在桩孔中下放相应深度的导管，在导管中浇筑砂浆，浇筑过程中同时拔出桩孔中的护筒和导管，在拔出过程使护筒和导管的下端均位于浇筑面以下。保证了桩基破除过程中周围构建筑物不受影响，而且保证回填后的桩孔结构稳定。
Underground pile foundation clearing construction method under complex environment
The invention relates to the technical field of building construction, in particular to an underground pile foundation clearing construction method under a complex environment. The method includes thefollowing steps that bearing table breaking is performed on a pile foundation, a pile head is cleared out, and the pile hole center position is measured according to the pile head; a drilling rig isinstalled above a pile hole so that a drill bit of the drilling rig and the pile hole center position in step 1 can be aligned; a pile casing is pressed onto the pile foundation, the drilling rig is started to break pile foundation concrete, and the breaking depth does not exceed the press-in depth of the pile casing; pile foundation rebars and slag blocks remaining in the pile casing are clearedaway; the pile hole depth is measured after clearing is completed; and according to the measured pile hole depth, a guide pipe in a corresponding depth is laid down into the pile hole, mortar is poured in the guide pipe, the pile casing and the guide pipe in the pile hole are pulled out at the same time in the pouring process, and the lower ends of the pile casing and the guide pipe are both located below the pouring face in the pull-out process. It is guaranteed that in the pile foundation breaking process, the surrounding building is not affected, and the structural stability of the pile hole after backfilling is guaranteed.
本发明涉及建筑施工技术领域，具体涉及一种复杂环境下的地下桩基清除施工方法，其步骤如下，对桩基进行承台破除，清理出桩头，依据桩头测量出桩孔中心位置；在桩孔上方安装钻机，使钻机的钻头与所述步骤1中的桩孔中心位置对齐；将护筒压入到桩基上，启动钻机对桩基混凝土进行破除，破除深度不超过护筒的压入深度；清理护筒内残留的桩基钢筋及渣块；清理完成后测量桩孔深度；依据测量出的桩孔深度，在桩孔中下放相应深度的导管，在导管中浇筑砂浆，浇筑过程中同时拔出桩孔中的护筒和导管，在拔出过程使护筒和导管的下端均位于浇筑面以下。保证了桩基破除过程中周围构建筑物不受影响，而且保证回填后的桩孔结构稳定。
Underground pile foundation clearing construction method under complex environment
一种复杂环境下的地下桩基清除施工方法
YAN SHIYOU (author) / CHEN YONGGUANG (author) / CHEN QIANG (author) / JIANG QIAO (author) / MIAO YUTAO (author) / HU BIN (author) / TAN BIN (author)
2020-05-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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