A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of prestressed pipe pile
The invention discloses a construction method of a prestressed pipe pile. The method comprises the steps that the prestressed pipe pile is sunk to a first target depth at a pile position in a foundation; placing a precast pile into the central hole channel of the prestressed pipe pile, and sinking the precast pile to a second target depth through the central hole channel; wherein the outer diameter of the precast pile is smaller than the inner diameter of the central hole channel; the second target depth is greater than the first target depth. According to the construction method of the prestressed pipe pile, the advantages of the prestressed pipe pile and variable cross-section lengthening are fully combined into a whole, the characteristic that the compression resistance stress of a pile body is large in the upper portion and small in the lower portion is fully considered, the prestressed pipe pile is firstly constructed, and then a small-cross-section precast pile is constructed through a center hole channel of the prestressed pipe pile; the prestressed pipe pile can effectively penetrate through hard plastic clay, interlayer silt, silt and pebble soil layers, the bearing capacity of the prestressed pipe pile is greatly improved, meanwhile, the work efficiency is improved, the cost is saved, and the environment is protected.
本发明公开了一种预应力管桩的施工方法，该方法包括在地基中的桩位处将预应力管桩沉入至第一目标深度；将预制桩置入所述预应力管桩的中心孔道内，经由所述中心孔道将所述预制桩沉入至第二目标深度；其中，所述预制桩的外径小于所述中心孔道的内径；所述第二目标深度大于所述第一目标深度。本申请提供的预应力管桩的施工方法，将预应力管桩和变截面接长的优势充分结合为一体，充分考虑桩身抗压受力上大下小的特点，先进行预应力管桩的施工，然后利用预应力管桩的中心孔道进行小截面的预制桩的施工，可有效穿越硬塑粘土、夹层粉土、粉砂及卵石土层，大幅提升预应力管桩的承载能力，同时实现工效的提高和成本的节约，保护环境。
Construction method of prestressed pipe pile
The invention discloses a construction method of a prestressed pipe pile. The method comprises the steps that the prestressed pipe pile is sunk to a first target depth at a pile position in a foundation; placing a precast pile into the central hole channel of the prestressed pipe pile, and sinking the precast pile to a second target depth through the central hole channel; wherein the outer diameter of the precast pile is smaller than the inner diameter of the central hole channel; the second target depth is greater than the first target depth. According to the construction method of the prestressed pipe pile, the advantages of the prestressed pipe pile and variable cross-section lengthening are fully combined into a whole, the characteristic that the compression resistance stress of a pile body is large in the upper portion and small in the lower portion is fully considered, the prestressed pipe pile is firstly constructed, and then a small-cross-section precast pile is constructed through a center hole channel of the prestressed pipe pile; the prestressed pipe pile can effectively penetrate through hard plastic clay, interlayer silt, silt and pebble soil layers, the bearing capacity of the prestressed pipe pile is greatly improved, meanwhile, the work efficiency is improved, the cost is saved, and the environment is protected.
本发明公开了一种预应力管桩的施工方法，该方法包括在地基中的桩位处将预应力管桩沉入至第一目标深度；将预制桩置入所述预应力管桩的中心孔道内，经由所述中心孔道将所述预制桩沉入至第二目标深度；其中，所述预制桩的外径小于所述中心孔道的内径；所述第二目标深度大于所述第一目标深度。本申请提供的预应力管桩的施工方法，将预应力管桩和变截面接长的优势充分结合为一体，充分考虑桩身抗压受力上大下小的特点，先进行预应力管桩的施工，然后利用预应力管桩的中心孔道进行小截面的预制桩的施工，可有效穿越硬塑粘土、夹层粉土、粉砂及卵石土层，大幅提升预应力管桩的承载能力，同时实现工效的提高和成本的节约，保护环境。
Construction method of prestressed pipe pile
一种预应力管桩的施工方法
CHU IN-DONG (author) / ZHU CHUNMING (author) / GAO WENSHENG (author) / LIN LI (author) / MENG JIAHUI (author) / SHENG ZHIQIANG (author) / SUN WEI (author) / REN XINJIAN (author) / ZHU ZHAOJING (author)
2022-08-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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