A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of civil engineering, and provides a prestressed pipe pile planting process which comprises the following steps: drilling a pile position, sinking a pile casing to a set depth, pouring concrete and lowering a prestressed pipe pile. And the pile casing is sunk to the set depth, the length of the pile casing is determined, the length of the pile casing is larger than or equal to the length from the pebble bed to the pile top, and after positioning is completed, the pile casing is sunk to the set depth through a vibratory hammer. According to the pile planting technology for the prestressed pipe pile, the enclosure effect of the pile casing is utilized, and the phenomenon of hole collapse or necking of a drilled hole is avoided. The cylindrical outer wall of the pile casing corresponding to the drill hole provides supporting force for the soil layer or the rock layer after drilling, the side wall of the drill hole highly backfilled with soil is prevented from collapsing, and the diameter shrinkage phenomenon is reduced. And meanwhile, a good pouring environment is formed for concrete pouring, in the concrete pouring process, the pile casing plays a role in isolation, and the situation that in the concrete pouring process, slurry leakage is likely to be caused, and consequently local body-filling rolling concrete is not compact is avoided.
本发明涉及土木工程的技术领域，提供一种预应力管桩植桩工艺，对桩位进行钻孔，将护筒下沉至设定深度，浇筑混凝土，下预应力管桩。将护筒下沉至设定深度，包括确定护筒的长度，护筒的长度大于或等于卵石层至桩顶的长度，定好位后，采用振动锤下沉护筒至设定深度。本发明所述的一种预应力管桩植桩工艺，利用护筒的围护作用，避免了钻孔塌孔或缩颈的现象。对应钻孔，护筒的圆柱形的外壁，为钻孔后的土层或岩层提供支撑力，防止高回填土质的钻孔的侧壁塌陷，减少缩径的现象；同时，为浇筑混凝土形成一个良好的浇筑环境，在浇筑混凝土过程中，护筒起到隔离的作用，避免混凝土浇筑过程中容易造成漏浆使得局部装身滚凝土不密实。
The invention relates to the technical field of civil engineering, and provides a prestressed pipe pile planting process which comprises the following steps: drilling a pile position, sinking a pile casing to a set depth, pouring concrete and lowering a prestressed pipe pile. And the pile casing is sunk to the set depth, the length of the pile casing is determined, the length of the pile casing is larger than or equal to the length from the pebble bed to the pile top, and after positioning is completed, the pile casing is sunk to the set depth through a vibratory hammer. According to the pile planting technology for the prestressed pipe pile, the enclosure effect of the pile casing is utilized, and the phenomenon of hole collapse or necking of a drilled hole is avoided. The cylindrical outer wall of the pile casing corresponding to the drill hole provides supporting force for the soil layer or the rock layer after drilling, the side wall of the drill hole highly backfilled with soil is prevented from collapsing, and the diameter shrinkage phenomenon is reduced. And meanwhile, a good pouring environment is formed for concrete pouring, in the concrete pouring process, the pile casing plays a role in isolation, and the situation that in the concrete pouring process, slurry leakage is likely to be caused, and consequently local body-filling rolling concrete is not compact is avoided.
本发明涉及土木工程的技术领域，提供一种预应力管桩植桩工艺，对桩位进行钻孔，将护筒下沉至设定深度，浇筑混凝土，下预应力管桩。将护筒下沉至设定深度，包括确定护筒的长度，护筒的长度大于或等于卵石层至桩顶的长度，定好位后，采用振动锤下沉护筒至设定深度。本发明所述的一种预应力管桩植桩工艺，利用护筒的围护作用，避免了钻孔塌孔或缩颈的现象。对应钻孔，护筒的圆柱形的外壁，为钻孔后的土层或岩层提供支撑力，防止高回填土质的钻孔的侧壁塌陷，减少缩径的现象；同时，为浇筑混凝土形成一个良好的浇筑环境，在浇筑混凝土过程中，护筒起到隔离的作用，避免混凝土浇筑过程中容易造成漏浆使得局部装身滚凝土不密实。
Pre-stressed pipe pile planting process
预应力管桩植桩工艺
FAN HUISONG (author)
2024-03-29
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
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Gründungen