A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for improving horizontal bearing capacity of tubular pile in photovoltaic power station
The invention discloses a construction method for improving the horizontal bearing capacity of a tubular pile in a photovoltaic power station, which comprises the following steps of: sinking a prefabricated tubular pile to a designed elevation, sleeving a rotary excavating and reaming device on the outer diameter of the prefabricated tubular pile, and driving a steel pipe rotating main shaft to rotate and push downwards under the action of a traction power device; a rotary excavating blade on a steel pipe rotary excavating main shaft cuts a soil body on the periphery of a pipe pile, a rotary excavating reaming device moves up and down and moves out the cut soil body, a hollow annular cylinder is formed on the periphery of the pipe pile within a certain range below the ground, the hollow annular cylinder is filled with filler with the strength higher than that of undisturbed soil, and the filler and the pipe pile form a composite pile. The effective diameter of the pipe pile is increased, so that the horizontal bearing capacity of the pipe pile is improved. The method solves the technical problems that the horizontal bearing capacity and the uplift bearing capacity of small-diameter tubular piles in a photovoltaic power station are insufficient, meanwhile, the situation that large-diameter tubular piles are adopted due to the horizontal bearing capacity and the like is avoided, the foundation manufacturing cost is reduced, and the market competitiveness is improved.
本发明公开了一种用于光伏电站提高管桩水平承载力的施工方法，预制管桩沉桩至设计标高，将旋挖扩孔装置套在预制管桩的外径上，在牵引动力装置的作用下，带动钢管旋转主轴旋转并向下推进，钢管旋挖主轴上的旋挖刀片切割管桩周边的土体，旋挖扩孔装置上下移动并将所切割土体移出，地面以下一定范围内管桩周边形成空心环状圆柱体，在空心环状圆柱体内填充强度比原状土强度高的填充物，填充物与管桩形成复合桩，增加管桩的有效直径，从而提高管桩的水平承载力。本发明方法解决了光伏电站中小直径管桩水平承载力、抗拔承载力不足等技术问题，同时避免因水平承载力等采用大直径管桩，减少基础造价，提高市场竞争力。
Construction method for improving horizontal bearing capacity of tubular pile in photovoltaic power station
The invention discloses a construction method for improving the horizontal bearing capacity of a tubular pile in a photovoltaic power station, which comprises the following steps of: sinking a prefabricated tubular pile to a designed elevation, sleeving a rotary excavating and reaming device on the outer diameter of the prefabricated tubular pile, and driving a steel pipe rotating main shaft to rotate and push downwards under the action of a traction power device; a rotary excavating blade on a steel pipe rotary excavating main shaft cuts a soil body on the periphery of a pipe pile, a rotary excavating reaming device moves up and down and moves out the cut soil body, a hollow annular cylinder is formed on the periphery of the pipe pile within a certain range below the ground, the hollow annular cylinder is filled with filler with the strength higher than that of undisturbed soil, and the filler and the pipe pile form a composite pile. The effective diameter of the pipe pile is increased, so that the horizontal bearing capacity of the pipe pile is improved. The method solves the technical problems that the horizontal bearing capacity and the uplift bearing capacity of small-diameter tubular piles in a photovoltaic power station are insufficient, meanwhile, the situation that large-diameter tubular piles are adopted due to the horizontal bearing capacity and the like is avoided, the foundation manufacturing cost is reduced, and the market competitiveness is improved.
本发明公开了一种用于光伏电站提高管桩水平承载力的施工方法，预制管桩沉桩至设计标高，将旋挖扩孔装置套在预制管桩的外径上，在牵引动力装置的作用下，带动钢管旋转主轴旋转并向下推进，钢管旋挖主轴上的旋挖刀片切割管桩周边的土体，旋挖扩孔装置上下移动并将所切割土体移出，地面以下一定范围内管桩周边形成空心环状圆柱体，在空心环状圆柱体内填充强度比原状土强度高的填充物，填充物与管桩形成复合桩，增加管桩的有效直径，从而提高管桩的水平承载力。本发明方法解决了光伏电站中小直径管桩水平承载力、抗拔承载力不足等技术问题，同时避免因水平承载力等采用大直径管桩，减少基础造价，提高市场竞争力。
Construction method for improving horizontal bearing capacity of tubular pile in photovoltaic power station
一种用于光伏电站提高管桩水平承载力的施工方法
CHEN CHANGCHUAN (author) / ZHANG ZHONG (author) / JI LEI (author) / WANG YUSHENG (author) / WEI JIASHENG (author)
2024-04-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
PHC tubular pile horizontal bearing capacity testing method
| European Patent Office | 2020
Photovoltaic pile foundation horizontal bearing capacity enhancing structure
| European Patent Office | 2024
| European Patent Office | 2022
Device for improving vertical bearing capacity of tubular pile and construction method thereof
| European Patent Office | 2024
Photovoltaic power generation support pile horizontal bearing capacity detection device and method
| European Patent Office | 2021