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A platform for research: civil engineering, architecture and urbanism
Construction method for rotary excavating cast-in-place pile steel casing hole forming
The invention relates to the technical field of building construction, and particularly discloses a construction method for rotary excavating cast-in-place pile steel casing hole forming, which comprises the following steps: step 1, measuring and positioning, rotary excavating a pre-drilled hole, and arranging an initial section steel casing below a vibratory hammer; 2, a rotary drilling rig is adopted for drilling rock soil in the outer-layer steel casing; 3, the secondary steel casing is placed at the hole opening, the secondary steel casing is hoisted by means of a hoisting machine, the secondary steel casing is aligned with the primary steel casing, and the secondary steel casing is connected with the primary steel casing; fourthly, the second step and the third step are repeated till the drilled hole reaches the set depth; 5, hole cleaning and final hole measurement are carried out; 6, a reinforcement cage is manufactured and lowered; and 7, a concrete guide pipe is installed, concrete is poured in a segmented mode, and the steel casing is pulled out in a segmented mode. The invention aims to solve the problem that a steel casing cannot be smoothly pulled out due to the fact that time is not well controlled in the construction process of a steel casing pore-forming pile when a rotary excavating cast-in-place pile steel casing pore-forming pile is adopted for pore-forming.
本申请涉及建筑施工技术领域，具体公开了一种旋挖灌注桩钢护筒成孔的施工方法，包括步骤1：测量定位，旋挖预钻孔，振动锤下设初段钢护筒；步骤2：采用旋挖钻机对外层钢护筒内的岩土进行钻孔；步骤3：将次段钢护筒放置于孔口处，借助吊装机械将次段钢护筒吊装，并使次段钢护筒与初段钢护筒对正，将次段钢护筒与初段钢护筒进行连接；步骤4：重复步骤2、步骤3直到钻孔达到设定深度；步骤5：清孔、终孔测量；步骤6：制作并下放钢筋笼；步骤7：安装混凝土导管，进行混凝土分段浇筑，并分段拔出钢护筒。本专利的目的在于解决基采用旋挖灌注桩钢护筒成孔时，在钢护筒成孔桩施工过程中会因为未控制好时间，存在钢护筒不能顺利拔出的问题。
Construction method for rotary excavating cast-in-place pile steel casing hole forming
The invention relates to the technical field of building construction, and particularly discloses a construction method for rotary excavating cast-in-place pile steel casing hole forming, which comprises the following steps: step 1, measuring and positioning, rotary excavating a pre-drilled hole, and arranging an initial section steel casing below a vibratory hammer; 2, a rotary drilling rig is adopted for drilling rock soil in the outer-layer steel casing; 3, the secondary steel casing is placed at the hole opening, the secondary steel casing is hoisted by means of a hoisting machine, the secondary steel casing is aligned with the primary steel casing, and the secondary steel casing is connected with the primary steel casing; fourthly, the second step and the third step are repeated till the drilled hole reaches the set depth; 5, hole cleaning and final hole measurement are carried out; 6, a reinforcement cage is manufactured and lowered; and 7, a concrete guide pipe is installed, concrete is poured in a segmented mode, and the steel casing is pulled out in a segmented mode. The invention aims to solve the problem that a steel casing cannot be smoothly pulled out due to the fact that time is not well controlled in the construction process of a steel casing pore-forming pile when a rotary excavating cast-in-place pile steel casing pore-forming pile is adopted for pore-forming.
本申请涉及建筑施工技术领域，具体公开了一种旋挖灌注桩钢护筒成孔的施工方法，包括步骤1：测量定位，旋挖预钻孔，振动锤下设初段钢护筒；步骤2：采用旋挖钻机对外层钢护筒内的岩土进行钻孔；步骤3：将次段钢护筒放置于孔口处，借助吊装机械将次段钢护筒吊装，并使次段钢护筒与初段钢护筒对正，将次段钢护筒与初段钢护筒进行连接；步骤4：重复步骤2、步骤3直到钻孔达到设定深度；步骤5：清孔、终孔测量；步骤6：制作并下放钢筋笼；步骤7：安装混凝土导管，进行混凝土分段浇筑，并分段拔出钢护筒。本专利的目的在于解决基采用旋挖灌注桩钢护筒成孔时，在钢护筒成孔桩施工过程中会因为未控制好时间，存在钢护筒不能顺利拔出的问题。
Construction method for rotary excavating cast-in-place pile steel casing hole forming
一种旋挖灌注桩钢护筒成孔的施工方法
ZHA GUANGJIAN (author) / LIU XUEYANG (author) / MA MINGHUI (author) / TANG JIKUI (author) / SHI JIANGWEI (author) / XU DENGFEI (author) / NAN YANG (author) / LUO YI (author) / XIONG SHOUHUI (author)
2024-07-23
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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