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A platform for research: civil engineering, architecture and urbanism
Cast-in-place pile-prestressed pipe pile composite pile and construction method thereof
The invention discloses a cast-in-place pile-prestressed pipe pile composite pile and a construction method thereof. According to the composite pile, a cast-in-place pile is arranged on the lower portion of the composite pile, an equal-diameter prestressed pipe pile is arranged on the upper portion of the composite pile, a circle of reserved steel bars extending downwards are arranged at the bottom end of the prestressed pipe pile, a circle of anchoring steel bars extending upwards are arranged at the top end of the cast-in-place pile, the reserved steel bars are butted, welded and fixed on the anchoring steel bars to form a joint part of the prestressed pipe pile and the cast-in-place pile, and the joint part is poured by adopting micro-expansive concrete with the same grade as the cast-in-place pile. According to the composite pile, a part of the pile body is replaced by the prestressed pipe pile at the upper part of the cast-in-place pile, so that the construction cost is saved, the connection stability and coaxiality of the cast-in-place pile and the prestressed pipe pile are ensured, and the overall strength is ensured.
本发明公开了一种灌注桩‑预应力管桩复合桩及其施工方法，该复合桩下部为灌注桩、上部为等径的预应力管桩，预应力管桩底端设有一圈向下延伸的预留钢筋，灌注桩顶端设有一圈向上延伸的锚固钢筋，预留钢筋对接且焊接固定在锚固钢筋上形成预应力管桩和灌注桩的接头部分，接头部分采用与灌注桩相同等级的微膨胀混凝土浇筑。本发明在灌注桩上部采用预应力管桩替换一部分桩身，节约了工程造价，保证了灌注桩和预应力管桩的连接稳固和同轴度，确保了整体强度。
Cast-in-place pile-prestressed pipe pile composite pile and construction method thereof
The invention discloses a cast-in-place pile-prestressed pipe pile composite pile and a construction method thereof. According to the composite pile, a cast-in-place pile is arranged on the lower portion of the composite pile, an equal-diameter prestressed pipe pile is arranged on the upper portion of the composite pile, a circle of reserved steel bars extending downwards are arranged at the bottom end of the prestressed pipe pile, a circle of anchoring steel bars extending upwards are arranged at the top end of the cast-in-place pile, the reserved steel bars are butted, welded and fixed on the anchoring steel bars to form a joint part of the prestressed pipe pile and the cast-in-place pile, and the joint part is poured by adopting micro-expansive concrete with the same grade as the cast-in-place pile. According to the composite pile, a part of the pile body is replaced by the prestressed pipe pile at the upper part of the cast-in-place pile, so that the construction cost is saved, the connection stability and coaxiality of the cast-in-place pile and the prestressed pipe pile are ensured, and the overall strength is ensured.
本发明公开了一种灌注桩‑预应力管桩复合桩及其施工方法，该复合桩下部为灌注桩、上部为等径的预应力管桩，预应力管桩底端设有一圈向下延伸的预留钢筋，灌注桩顶端设有一圈向上延伸的锚固钢筋，预留钢筋对接且焊接固定在锚固钢筋上形成预应力管桩和灌注桩的接头部分，接头部分采用与灌注桩相同等级的微膨胀混凝土浇筑。本发明在灌注桩上部采用预应力管桩替换一部分桩身，节约了工程造价，保证了灌注桩和预应力管桩的连接稳固和同轴度，确保了整体强度。
Cast-in-place pile-prestressed pipe pile composite pile and construction method thereof
灌注桩-预应力管桩复合桩及其施工方法
ZHANG WU (author) / XIONG XIONG (author) / LIAO QIANKUN (author) / ZENG FANXIANG (author) / ZHU JINGJING (author) / CHEN JUN (author) / PAN XIYANG (author) / LUO JIARUI (author)
2021-09-21
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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