A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Post-insertion unbonded steel strand U-shaped pipe pressure-bearing type uplift pile and construction method thereof
The invention relates to a post-insertion unbonded steel strand U-shaped pipe pressure-bearing type uplift pile and a construction method thereof. A drilling machine hole forming and concrete pouring pile forming process is adopted in uplift pile construction, before initial setting of pile body concrete, a hammer pipe is adopted to insert an unbonded steel strand and U-shaped pipe pressure-bearing component combined body into a specified elevation position in a concrete pile body, and finally the unbonded steel strand is tensioned and locked at the top of the pile, the interior of a foundation or the upper portion of the foundation through an anchor plate and an anchorage device. The post-insertion technology is adopted, the construction speed is high, the U-shaped pipe pressure-bearing component is easy and convenient to install, an anchor head and the anchorage device do not need to be installed at the lower end, the construction quality is good, and the pile body uplift bearing capacity is high. Compared with a common uplift pile, the problem of pile body cracks does not need to be considered, the using amount of main materials is small, and the manufacturing cost is low; and compared with an anti-floating anchor rod, the pile body is made of concrete, the quality is more reliable than that of cement paste or mortar adopted by the anti-floating anchor rod, and a main material protection layer is large in thickness, higher in bearing capacity and better in durability.
本申请涉及一种后插无粘结钢绞线U型管承压型抗拔桩及其施工方法。抗拔桩施工采用钻机成孔灌注混凝土成桩工艺，在桩身混凝土初凝前采用锤管将无粘结钢绞线和U型管承压构件组合体后插入到混凝土桩身内指定标高位置，最后通过锚板和锚具将无粘结钢绞线张拉锁定在桩顶部、基础内部或基础上部。本申请采用后插工艺，施工速度快，U型管承压构件安装简便，下端部无需安装锚头锚具，施工质量好，桩身抗拔承载力高。与普通抗拔桩相比，本申请无需考虑桩身裂缝问题，主材用量少，造价低；与抗浮锚杆相比，本申请桩身材料采用混凝土，比抗浮锚杆采用的水泥浆或砂浆质量更可靠，主材保护层厚度大，承载力更高，耐久性更好。
Post-insertion unbonded steel strand U-shaped pipe pressure-bearing type uplift pile and construction method thereof
The invention relates to a post-insertion unbonded steel strand U-shaped pipe pressure-bearing type uplift pile and a construction method thereof. A drilling machine hole forming and concrete pouring pile forming process is adopted in uplift pile construction, before initial setting of pile body concrete, a hammer pipe is adopted to insert an unbonded steel strand and U-shaped pipe pressure-bearing component combined body into a specified elevation position in a concrete pile body, and finally the unbonded steel strand is tensioned and locked at the top of the pile, the interior of a foundation or the upper portion of the foundation through an anchor plate and an anchorage device. The post-insertion technology is adopted, the construction speed is high, the U-shaped pipe pressure-bearing component is easy and convenient to install, an anchor head and the anchorage device do not need to be installed at the lower end, the construction quality is good, and the pile body uplift bearing capacity is high. Compared with a common uplift pile, the problem of pile body cracks does not need to be considered, the using amount of main materials is small, and the manufacturing cost is low; and compared with an anti-floating anchor rod, the pile body is made of concrete, the quality is more reliable than that of cement paste or mortar adopted by the anti-floating anchor rod, and a main material protection layer is large in thickness, higher in bearing capacity and better in durability.
本申请涉及一种后插无粘结钢绞线U型管承压型抗拔桩及其施工方法。抗拔桩施工采用钻机成孔灌注混凝土成桩工艺，在桩身混凝土初凝前采用锤管将无粘结钢绞线和U型管承压构件组合体后插入到混凝土桩身内指定标高位置，最后通过锚板和锚具将无粘结钢绞线张拉锁定在桩顶部、基础内部或基础上部。本申请采用后插工艺，施工速度快，U型管承压构件安装简便，下端部无需安装锚头锚具，施工质量好，桩身抗拔承载力高。与普通抗拔桩相比，本申请无需考虑桩身裂缝问题，主材用量少，造价低；与抗浮锚杆相比，本申请桩身材料采用混凝土，比抗浮锚杆采用的水泥浆或砂浆质量更可靠，主材保护层厚度大，承载力更高，耐久性更好。
Post-insertion unbonded steel strand U-shaped pipe pressure-bearing type uplift pile and construction method thereof
后插无粘结钢绞线U型管承压型抗拔桩及其施工方法
ZHANG DONGGANG (author) / ZHANG ZHEN (author) / FENG LU (author) / LI SHUAI (author) / GU ERYONG (author) / TANG WEI (author) / WANG LEI (author) / XU SHAOJUN (author) / ZHAO BI (author) / HU NA (author)
2021-07-16
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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