A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pile body drilling device capable of preventing hole collapse and construction method
The invention relates to the technical field of pile foundation construction, in particular to a pile body drilling device capable of preventing hole collapse and a construction method.The pile body drilling device comprises a drill rod device and a double-layer cylindrical structure formed by an inner-layer drill rod and an outer-layer drill rod, and a first drill bit is arranged at the bottom end of the inner-layer drill rod; the anti-sloughing hole and reducing structure is provided with a slurry storage barrel and a plurality of slurry conveying pipes, the slurry storage barrel is located in the hollow portion between the inner-layer drill rod and the outer-layer drill rod, one end of each slurry conveying pipe is connected with the slurry storage barrel, the other end of each slurry conveying pipe is converted into a horizontal state by additionally arranging a bent pipe, a grouting pipe is arranged at the end of each slurry conveying pipe, and the horizontal section of each slurry conveying pipe is telescopic; a plurality of grouting holes are evenly formed in a pipe body of the grouting pipe, and a second drill bit is arranged at the end of the grouting pipe. The side wall hole collapse can be prevented while drilling and pile forming are conducted, diameter changing can be achieved under the condition that the drill bit is not changed, and the construction efficiency is improved.
本发明涉及桩基施工技术领域，尤其是一种可防塌孔的桩体钻进装置及施工方法，包括钻杆装置，由内层钻杆和外层钻杆形成的双层筒形结构，所述内层钻杆底端设有第一钻头；防塌孔及变径结构，具有位于所述内层钻杆和所述外层钻杆间中空部位的储浆桶和若干输浆管，所述输浆管一端与所述储浆桶连接，另一端通过增设弯管转换为水平状态且端部设有注浆管，水平段的所述输浆管可伸缩，所述注浆管管身设有均匀布置的若干注浆孔且其端部设有第二钻头；本发明能在钻进成桩的同时防止侧壁塌孔，并能在不改变钻头的情况下实现变径，提高施工效率。
Pile body drilling device capable of preventing hole collapse and construction method
The invention relates to the technical field of pile foundation construction, in particular to a pile body drilling device capable of preventing hole collapse and a construction method.The pile body drilling device comprises a drill rod device and a double-layer cylindrical structure formed by an inner-layer drill rod and an outer-layer drill rod, and a first drill bit is arranged at the bottom end of the inner-layer drill rod; the anti-sloughing hole and reducing structure is provided with a slurry storage barrel and a plurality of slurry conveying pipes, the slurry storage barrel is located in the hollow portion between the inner-layer drill rod and the outer-layer drill rod, one end of each slurry conveying pipe is connected with the slurry storage barrel, the other end of each slurry conveying pipe is converted into a horizontal state by additionally arranging a bent pipe, a grouting pipe is arranged at the end of each slurry conveying pipe, and the horizontal section of each slurry conveying pipe is telescopic; a plurality of grouting holes are evenly formed in a pipe body of the grouting pipe, and a second drill bit is arranged at the end of the grouting pipe. The side wall hole collapse can be prevented while drilling and pile forming are conducted, diameter changing can be achieved under the condition that the drill bit is not changed, and the construction efficiency is improved.
本发明涉及桩基施工技术领域，尤其是一种可防塌孔的桩体钻进装置及施工方法，包括钻杆装置，由内层钻杆和外层钻杆形成的双层筒形结构，所述内层钻杆底端设有第一钻头；防塌孔及变径结构，具有位于所述内层钻杆和所述外层钻杆间中空部位的储浆桶和若干输浆管，所述输浆管一端与所述储浆桶连接，另一端通过增设弯管转换为水平状态且端部设有注浆管，水平段的所述输浆管可伸缩，所述注浆管管身设有均匀布置的若干注浆孔且其端部设有第二钻头；本发明能在钻进成桩的同时防止侧壁塌孔，并能在不改变钻头的情况下实现变径，提高施工效率。
Pile body drilling device capable of preventing hole collapse and construction method
一种可防塌孔的桩体钻进装置及施工方法
DIAO XUHAN (author) / LU YIZHE (author) / HAN JIANYONG (author) / YUE QINGXIA (author) / SHI WEI (author) / LI XIAONAN (author) / YANG MINGSEN (author) / CHEN JIYAO (author)
2023-12-01
Patent
Electronic Resource
Chinese
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