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Construction method for embedding pile into rock
The invention discloses a construction method for embedding a pile into a rock. The construction method comprises the following steps that (1), preparation is carried out before construction; (2), a pile frame and a double-power-head drilling machine are installed and debugged; (3), the long spiral drilling tool drills, and a casing pipe performs follow-up cutting; (4), a long spiral drill rod is lifted, and a drilling tool is replaced with a down-the-hole hammer; (5), the down-the-hole hammer impacts into the rock, and the sleeve rotates reversely to perform follow-up cutting; (6), the down-the-hole hammer impacts into the rock, and the sleeve rotates reversely to perform follow-up cutting to reach the hole forming depth; (7), the down-the-hole hammer is lifted out of the ground, and the casing pipe keeps the stratum; (8), a prestressed pipe pile is pressed into the inner wall of the casing pipe; (9), the casing pipe is rotationally pulled out; (10), the prestressed pipe pile is hammered and sinks; and (11), concrete is pumped to the inner wall of the casing pipe, and curing is carried out according to requirements to form the rock-entering planting pile. According to the construction method for embedding the pile into the rock, the construction capacity of a long spiral drilling machine under the complex address condition is improved, synchronous construction of hole forming and hole cleaning is achieved, hole wall collapse or water inflow is prevented, serious pollution of slurry to the environment is overcome, the pile forming quality is effectively controlled, and the operation efficiency is effectively improved.
一种入岩植桩的施工方法，包括以下步骤：1）施工前准备；2）桩架、双动力头钻机安装调试；3）长螺旋钻具钻进、套管跟进切削；4）长螺旋钻杆提升，钻具更换成潜孔锤；5）潜孔锤冲击入岩、套管反转跟进切削；6）潜孔锤冲击入岩、套管反转跟进切削达到成孔深度；7）潜孔锤提升出地面、套管留置地层；8）预应力管桩压入套管内壁；9）套管旋转拔出；10）预应力管桩锤击沉桩；11）向套管内壁泵送混凝土，按要求养护形成入岩植桩。本发明入岩植桩的施工方法提高长螺旋钻机在复杂地址条件下的施工能力，实现成孔和清孔同步施工，防止孔壁坍塌或进水，克服泥浆对环境对的严重污染，有效控制成桩质量和提高作业效率。
Construction method for embedding pile into rock
The invention discloses a construction method for embedding a pile into a rock. The construction method comprises the following steps that (1), preparation is carried out before construction; (2), a pile frame and a double-power-head drilling machine are installed and debugged; (3), the long spiral drilling tool drills, and a casing pipe performs follow-up cutting; (4), a long spiral drill rod is lifted, and a drilling tool is replaced with a down-the-hole hammer; (5), the down-the-hole hammer impacts into the rock, and the sleeve rotates reversely to perform follow-up cutting; (6), the down-the-hole hammer impacts into the rock, and the sleeve rotates reversely to perform follow-up cutting to reach the hole forming depth; (7), the down-the-hole hammer is lifted out of the ground, and the casing pipe keeps the stratum; (8), a prestressed pipe pile is pressed into the inner wall of the casing pipe; (9), the casing pipe is rotationally pulled out; (10), the prestressed pipe pile is hammered and sinks; and (11), concrete is pumped to the inner wall of the casing pipe, and curing is carried out according to requirements to form the rock-entering planting pile. According to the construction method for embedding the pile into the rock, the construction capacity of a long spiral drilling machine under the complex address condition is improved, synchronous construction of hole forming and hole cleaning is achieved, hole wall collapse or water inflow is prevented, serious pollution of slurry to the environment is overcome, the pile forming quality is effectively controlled, and the operation efficiency is effectively improved.
一种入岩植桩的施工方法，包括以下步骤：1）施工前准备；2）桩架、双动力头钻机安装调试；3）长螺旋钻具钻进、套管跟进切削；4）长螺旋钻杆提升，钻具更换成潜孔锤；5）潜孔锤冲击入岩、套管反转跟进切削；6）潜孔锤冲击入岩、套管反转跟进切削达到成孔深度；7）潜孔锤提升出地面、套管留置地层；8）预应力管桩压入套管内壁；9）套管旋转拔出；10）预应力管桩锤击沉桩；11）向套管内壁泵送混凝土，按要求养护形成入岩植桩。本发明入岩植桩的施工方法提高长螺旋钻机在复杂地址条件下的施工能力，实现成孔和清孔同步施工，防止孔壁坍塌或进水，克服泥浆对环境对的严重污染，有效控制成桩质量和提高作业效率。
Construction method for embedding pile into rock
一种入岩植桩的施工方法
WU GUOMING (author) / LI JUN (author) / XU LEI (author) / SONG YUANLAI (author) / HUANG CONG (author) / ZENG FANSHENG (author) / WU JIPING (author) / CHE WEIBO (author)
2022-01-25
Patent
Electronic Resource
Chinese
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