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Overturn stability verification method and system for power transmission pole foundation
The invention discloses an overturn stability verification method and system for a power transmission pole foundation, and the method and system are suitable for the calculation of a straight-column stepped foundation or a straight-column plate-type foundation of an excavation backfill-type foundation, and the method comprises the steps: determining an overturn angle of an uplift soil body at oneside of the power transmission pole foundation; based on the overturn angle, determining the dead weight of the soil body above the foundation slab of the power transmission pole; determining the sumof the dead weight of the soil body above the power transmission pole foundation slab and the dead weight of the power transmission pole foundation; and according to the balance of the external load calculation force acting on the foundation, determining whether the overturn stability requirement is met or not. According to the method, during overturn stability calculation, the sum of the soil body over the foundation and the soil body pulled up from one side of the foundation is considered, when the foundation enters an overturning sliding state, the soil body on one side of the foundation participates in overturn stability verification, part of overturn moment is offset through the soil weight, and the overturn influence of the external load of the foundation on the foundation is reduced.
本发明公开了一种输电杆基础的倾覆稳定校验方法及系统，适用于对开挖回填类基础的直柱台阶式基础或直柱板式基础的计算，所述方法包括：确定输电杆基础一侧上拔土体的倾覆角；基于所述倾覆角，确定输电杆基础底板以上的土体自重；确定所述输电杆基础底板以上的土体自重与输电杆基础自重之和；根据作用于基础上的外荷载计算力的平衡，确定是否满足倾覆稳定要求。本发明在倾覆稳定计算时，考虑基础正上方土体和基础一侧上拔的土体之和，基础在进入倾覆滑移状态时，基础的一侧土体参与倾覆稳定校验，利用该部分土重抵消一部分倾覆力矩，减少基础外荷载对基础本身的倾覆影响。
Overturn stability verification method and system for power transmission pole foundation
The invention discloses an overturn stability verification method and system for a power transmission pole foundation, and the method and system are suitable for the calculation of a straight-column stepped foundation or a straight-column plate-type foundation of an excavation backfill-type foundation, and the method comprises the steps: determining an overturn angle of an uplift soil body at oneside of the power transmission pole foundation; based on the overturn angle, determining the dead weight of the soil body above the foundation slab of the power transmission pole; determining the sumof the dead weight of the soil body above the power transmission pole foundation slab and the dead weight of the power transmission pole foundation; and according to the balance of the external load calculation force acting on the foundation, determining whether the overturn stability requirement is met or not. According to the method, during overturn stability calculation, the sum of the soil body over the foundation and the soil body pulled up from one side of the foundation is considered, when the foundation enters an overturning sliding state, the soil body on one side of the foundation participates in overturn stability verification, part of overturn moment is offset through the soil weight, and the overturn influence of the external load of the foundation on the foundation is reduced.
本发明公开了一种输电杆基础的倾覆稳定校验方法及系统，适用于对开挖回填类基础的直柱台阶式基础或直柱板式基础的计算，所述方法包括：确定输电杆基础一侧上拔土体的倾覆角；基于所述倾覆角，确定输电杆基础底板以上的土体自重；确定所述输电杆基础底板以上的土体自重与输电杆基础自重之和；根据作用于基础上的外荷载计算力的平衡，确定是否满足倾覆稳定要求。本发明在倾覆稳定计算时，考虑基础正上方土体和基础一侧上拔的土体之和，基础在进入倾覆滑移状态时，基础的一侧土体参与倾覆稳定校验，利用该部分土重抵消一部分倾覆力矩，减少基础外荷载对基础本身的倾覆影响。
Overturn stability verification method and system for power transmission pole foundation
一种输电杆基础的倾覆稳定校验方法及系统
ZHAO GUANGTAI (author) / LIN QINGHAI (author) / JIN SHU (author) / CAO DANJING (author) / XU ZAIGEN (author) / ZHANG LIJUAN (author) / FU JIANMING (author) / LEI QIANG (author) / SU DING (author) / ZHENG HEHUA (author)
2020-12-15
Patent
Electronic Resource
Chinese
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