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A platform for research: civil engineering, architecture and urbanism
Method for avoiding secondary drilling of cast-in-situ bored pile
The invention discloses a method for avoiding secondary drilling of a cast-in-situ bored pile, a detection cage soil cutter is arranged, the detection cage soil cutter comprises a column body, a semicircular plate and a connecting rod, the column body is made of reinforced concrete, the bottom end of the column body is conical, the other parts of the column body are cylindrical, a pre-embedded lifting lug is mounted in the center of the top end of the column body, and pre-embedded plates are symmetrically mounted on two sides of the lower part of the column body; a connecting plate is arranged in the center of the inner arc face of each semicircular plate, the semicircular plates are detachably and fixedly connected to the embedded plate through the connecting plates and connecting rods, the two semicircular plates define a whole cylinder, the column body is located in the center of the cylinder, and the size of the cylinder is the design size of a pile hole. When the initial hole forming depth of the pile hole reaches the designed depth, the detection cage soil cutter is lifted up and aligned to the position over the pile hole, then the detection cage soil cutter is released, the detection cage soil cutter falls into the pile hole, under the action of self weight and acceleration, soil protruding inwards in the pile hole is cut off through the cylinder, and the cut-off soil is discharged during secondary hole cleaning. According to the method, secondary drilling is avoided, and construction time and materials are saved.
本发明公开一种避免钻孔灌注桩二次钻孔的方法，设置探笼切土器，探笼切土器包括柱体、半圆板和连杆，柱体由钢筋混凝土制成，柱体的底端为圆锥形、其余部位为圆柱形，柱体的顶端中心安装预埋吊耳、下部两侧对称安装预埋板，半圆板的内弧面中心位置设有连接板，半圆板通过连接板和连杆可拆卸地固连在预埋板上，两个半圆板合围成整个圆筒，柱体位于圆筒中心，圆筒尺寸为桩孔设计尺寸；当桩孔初次成孔达到设计深度时，吊起探笼切土器并使之对准桩孔正上方，然后释放探笼切土器，探笼切土器落入桩孔内，在自重以及加速度的作用下，利用圆筒切除桩孔内向内突出的土体，切除的土体在二次清孔时排出。本方法避免二次钻孔，节约施工时间和材料。
Method for avoiding secondary drilling of cast-in-situ bored pile
The invention discloses a method for avoiding secondary drilling of a cast-in-situ bored pile, a detection cage soil cutter is arranged, the detection cage soil cutter comprises a column body, a semicircular plate and a connecting rod, the column body is made of reinforced concrete, the bottom end of the column body is conical, the other parts of the column body are cylindrical, a pre-embedded lifting lug is mounted in the center of the top end of the column body, and pre-embedded plates are symmetrically mounted on two sides of the lower part of the column body; a connecting plate is arranged in the center of the inner arc face of each semicircular plate, the semicircular plates are detachably and fixedly connected to the embedded plate through the connecting plates and connecting rods, the two semicircular plates define a whole cylinder, the column body is located in the center of the cylinder, and the size of the cylinder is the design size of a pile hole. When the initial hole forming depth of the pile hole reaches the designed depth, the detection cage soil cutter is lifted up and aligned to the position over the pile hole, then the detection cage soil cutter is released, the detection cage soil cutter falls into the pile hole, under the action of self weight and acceleration, soil protruding inwards in the pile hole is cut off through the cylinder, and the cut-off soil is discharged during secondary hole cleaning. According to the method, secondary drilling is avoided, and construction time and materials are saved.
本发明公开一种避免钻孔灌注桩二次钻孔的方法，设置探笼切土器，探笼切土器包括柱体、半圆板和连杆，柱体由钢筋混凝土制成，柱体的底端为圆锥形、其余部位为圆柱形，柱体的顶端中心安装预埋吊耳、下部两侧对称安装预埋板，半圆板的内弧面中心位置设有连接板，半圆板通过连接板和连杆可拆卸地固连在预埋板上，两个半圆板合围成整个圆筒，柱体位于圆筒中心，圆筒尺寸为桩孔设计尺寸；当桩孔初次成孔达到设计深度时，吊起探笼切土器并使之对准桩孔正上方，然后释放探笼切土器，探笼切土器落入桩孔内，在自重以及加速度的作用下，利用圆筒切除桩孔内向内突出的土体，切除的土体在二次清孔时排出。本方法避免二次钻孔，节约施工时间和材料。
Method for avoiding secondary drilling of cast-in-situ bored pile
避免钻孔灌注桩二次钻孔的方法
LI MINGHAO (author) / DING GUOQUAN (author) / LIU JIANNAN (author)
2024-03-15
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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