A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Power transmission line spiral single anchor foundation pull-shear coupling test method
The invention provides a pull-shear coupling test method for a spiral single anchor foundation of a power transmission line. The test method comprises the following steps: converting a standard value of ultimate bearing capacity of axial tension borne by a single anchor and a standard value of ultimate bearing capacity of shear force borne by the single anchor under a test coordinate system; designing vertical and horizontal bearing capacities provided by the concrete counter-force pile; calculating the size of a loading main beam according to a two-end hinging and mid-span concentrated load model; the size of a horizontal counter-force supporting steel beam and the size of a vertical counter-force supporting steel beam are calculated according to a two-end cantilever load model; a horizontal displacement meter and a vertical displacement meter are arranged on the test screw anchor horizontal conversion plate; and carrying out pulling shear coupling loading on the test screw anchor, and testing the bearing capacity of the test screw anchor. A coherent loading system for outdoor on-site pulling shear coupling of the spiral anchor foundation is developed, and synchronous loading of upward pulling and horizontal loads under the outdoor on-site condition can be achieved; the design value of the screw anchor can be effectively verified, and a basis is provided for operation reliability evaluation of the screw anchor.
本发明提供了一种输电线路螺旋单锚基础拔剪耦合试验方法，试验方法包括：对单锚承受的轴拉力极限承载力标准值和单锚承受的剪切力极限承载力标准值进行试验坐标系下的转换；设计混凝土反力桩所能提供的竖向和水平承载力；按照两端铰接、跨中集中荷载模型计算加载主梁的尺寸；按照两端悬臂荷载模型计算水平反力支撑钢梁的尺寸和竖向反力支撑钢梁的尺寸；在试验螺旋锚水平转换板上布置水平位移计和竖向位移计；对试验螺旋锚进行拔剪耦合加载，测试试验螺旋锚的承载力。开发了螺旋锚基础户外现场拔剪耦合的同调加载系统，能够实现在户外现场条件下上拔和水平荷载的同步加载；能够有效对螺旋锚的设计值进行验证，为螺旋锚的运行可靠性评估提供依据。
Power transmission line spiral single anchor foundation pull-shear coupling test method
The invention provides a pull-shear coupling test method for a spiral single anchor foundation of a power transmission line. The test method comprises the following steps: converting a standard value of ultimate bearing capacity of axial tension borne by a single anchor and a standard value of ultimate bearing capacity of shear force borne by the single anchor under a test coordinate system; designing vertical and horizontal bearing capacities provided by the concrete counter-force pile; calculating the size of a loading main beam according to a two-end hinging and mid-span concentrated load model; the size of a horizontal counter-force supporting steel beam and the size of a vertical counter-force supporting steel beam are calculated according to a two-end cantilever load model; a horizontal displacement meter and a vertical displacement meter are arranged on the test screw anchor horizontal conversion plate; and carrying out pulling shear coupling loading on the test screw anchor, and testing the bearing capacity of the test screw anchor. A coherent loading system for outdoor on-site pulling shear coupling of the spiral anchor foundation is developed, and synchronous loading of upward pulling and horizontal loads under the outdoor on-site condition can be achieved; the design value of the screw anchor can be effectively verified, and a basis is provided for operation reliability evaluation of the screw anchor.
本发明提供了一种输电线路螺旋单锚基础拔剪耦合试验方法，试验方法包括：对单锚承受的轴拉力极限承载力标准值和单锚承受的剪切力极限承载力标准值进行试验坐标系下的转换；设计混凝土反力桩所能提供的竖向和水平承载力；按照两端铰接、跨中集中荷载模型计算加载主梁的尺寸；按照两端悬臂荷载模型计算水平反力支撑钢梁的尺寸和竖向反力支撑钢梁的尺寸；在试验螺旋锚水平转换板上布置水平位移计和竖向位移计；对试验螺旋锚进行拔剪耦合加载，测试试验螺旋锚的承载力。开发了螺旋锚基础户外现场拔剪耦合的同调加载系统，能够实现在户外现场条件下上拔和水平荷载的同步加载；能够有效对螺旋锚的设计值进行验证，为螺旋锚的运行可靠性评估提供依据。
Power transmission line spiral single anchor foundation pull-shear coupling test method
一种输电线路螺旋单锚基础拔剪耦合试验方法
GU LIANGYU (author) / HE SONGYANG (author) / HE WENJUN (author) / LI LEI (author) / YU BO (author) / WU YIMIN (author) / MA HAIYUN (author) / XUE FENG (author) / WANG XINGQIAN (author) / HAN DAGANG (author)
2023-08-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2025
| European Patent Office | 2023
Construction method of jet grouting spiral anchor rod pile for power transmission line foundation
| European Patent Office | 2024
Straight-inclined combined tree-root-shaped spiral anchor foundation for power transmission line
| European Patent Office | 2023
Anchor foundation for reinforcing power transmission line foundation
| European Patent Office | 2021