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A platform for research: civil engineering, architecture and urbanism
Long pile casing sleeve-free rotary excavating hard cutting secant pile hole-forming construction technology
The invention discloses a long-pile-casing casing-free rotary excavating hard cutting secant pile hole-forming construction technology. The technology comprises the following steps that S1, construction preparation is conducted; s2, a wave-shaped guide wall is formed; s3, guiding the pile casing; s4, the I-sequence pile holes are rotationally excavated; and S5, the II-sequence pile holes are rotationally excavated. The rotary drill is used for drilling holes and forming holes in rocks, and popularization and application of the secant pile in rock stratums are achieved; the guide pile casing and drill rod comprehensive guide technology is adopted to guarantee the drilling perpendicularity, good meshing between piles is achieved, and then a pile wall structure is formed; the problem that a traditional casing pipe drilling machine cannot drill in a hard rock stratum or is low in drilling efficiency is solved.
本发明是一种长护筒无套管旋挖硬切割咬合桩成孔施工工艺，其步骤如下：S1、施工准备；S2、波形导墙；S3、导向护筒；S4、旋挖Ⅰ序桩孔；S5、旋挖Ⅱ序桩孔。本发明使用旋挖钻钻孔、入岩成孔，实现咬合桩在岩层中的推广和应用；采用导向护筒和钻杆综合导向技术保证钻孔垂直度，实现桩间良好的咬合，进而形成桩墙结构；破解了传统的套管钻机在硬岩地层无法钻进或钻进效率低的难题。
Long pile casing sleeve-free rotary excavating hard cutting secant pile hole-forming construction technology
The invention discloses a long-pile-casing casing-free rotary excavating hard cutting secant pile hole-forming construction technology. The technology comprises the following steps that S1, construction preparation is conducted; s2, a wave-shaped guide wall is formed; s3, guiding the pile casing; s4, the I-sequence pile holes are rotationally excavated; and S5, the II-sequence pile holes are rotationally excavated. The rotary drill is used for drilling holes and forming holes in rocks, and popularization and application of the secant pile in rock stratums are achieved; the guide pile casing and drill rod comprehensive guide technology is adopted to guarantee the drilling perpendicularity, good meshing between piles is achieved, and then a pile wall structure is formed; the problem that a traditional casing pipe drilling machine cannot drill in a hard rock stratum or is low in drilling efficiency is solved.
本发明是一种长护筒无套管旋挖硬切割咬合桩成孔施工工艺，其步骤如下：S1、施工准备；S2、波形导墙；S3、导向护筒；S4、旋挖Ⅰ序桩孔；S5、旋挖Ⅱ序桩孔。本发明使用旋挖钻钻孔、入岩成孔，实现咬合桩在岩层中的推广和应用；采用导向护筒和钻杆综合导向技术保证钻孔垂直度，实现桩间良好的咬合，进而形成桩墙结构；破解了传统的套管钻机在硬岩地层无法钻进或钻进效率低的难题。
Long pile casing sleeve-free rotary excavating hard cutting secant pile hole-forming construction technology
一种长护筒无套管旋挖硬切割咬合桩成孔施工工艺
LIU YUHUI (author) / KANG DAYONG (author) / LUO FEI (author) / WANG SHUSHENG (author) / WANG HAIJUN (author) / LUO CHANGWEN (author) / YANG CHAOYUAN (author) / SI YANZHONG (author) / LI WEI (author) / ZHANG LIXIN (author)
2023-01-24
Patent
Electronic Resource
Chinese
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