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Composite spiral anchor foundation for improving anti-overturning capacity of power transmission steel pipe pole
The composite spiral anchor foundation for improving the anti-overturning capacity of the steel pipe pole through power transmission comprises a main spiral anchor, a plurality of satellite spiral anchors are arranged at the upper end of the main spiral anchor in the circumferential direction at intervals, and connecting steel beams are arranged between the main spiral anchor and the satellite spiral anchors; the connecting steel beam and the satellite spiral anchor support are hinged to each other, and a connecting flange connected with an upper steel pipe pole is arranged at the top of the main spiral anchor. The overturning moment and the horizontal force of the power transmission steel pipe pole are transmitted to the main spiral anchor through the connecting flange and are jointly borne by the main spiral anchor and the satellite spiral anchor. Due to the fact that the space between the satellite spiral anchors is increased and the satellite spiral anchors are arranged in an inclined mode, the anti-overturning bearing capacity, the anti-horizontal bearing capacity and the corresponding foundation rigidity of the main spiral anchor provided by the upward pulling bearing capacity, the downward pressing bearing capacity and the horizontal bearing capacity of the satellite spiral anchors are greatly improved, and therefore the problems that when a single spiral anchor foundation is designed for a steel pipe pole, the anti-overturning bearing capacity is insufficient, and lateral deformation is too large are effectively solved.
本发明公开了一种输电提升钢管杆抗倾覆能力的复合螺旋锚基础，包括主螺旋锚，所述主螺旋锚的上端沿周向间隔设置有若干卫星螺旋锚，所述主螺旋锚和所述卫星螺旋锚之间设置有连接钢梁，所述连接钢梁和所述卫星螺旋锚支架相互铰接，所述主螺旋锚的顶部设置有与上部钢管杆连接的连接法兰。本发明输电钢管杆的倾覆力矩和水平力由连接法兰传递给主螺旋锚，并由主螺旋锚和卫星螺旋锚共同承担。由于卫星螺旋锚间距加大且倾斜布置，由其上拔、下压、水平承载力所提供的主螺旋锚抗倾覆承载力、抗水平承载力以及相应的基础刚度均大大提高，从而有效解决钢管杆在单一螺旋锚基础设计时，抗倾覆承载力不足和侧向变形过大的难题。
Composite spiral anchor foundation for improving anti-overturning capacity of power transmission steel pipe pole
The composite spiral anchor foundation for improving the anti-overturning capacity of the steel pipe pole through power transmission comprises a main spiral anchor, a plurality of satellite spiral anchors are arranged at the upper end of the main spiral anchor in the circumferential direction at intervals, and connecting steel beams are arranged between the main spiral anchor and the satellite spiral anchors; the connecting steel beam and the satellite spiral anchor support are hinged to each other, and a connecting flange connected with an upper steel pipe pole is arranged at the top of the main spiral anchor. The overturning moment and the horizontal force of the power transmission steel pipe pole are transmitted to the main spiral anchor through the connecting flange and are jointly borne by the main spiral anchor and the satellite spiral anchor. Due to the fact that the space between the satellite spiral anchors is increased and the satellite spiral anchors are arranged in an inclined mode, the anti-overturning bearing capacity, the anti-horizontal bearing capacity and the corresponding foundation rigidity of the main spiral anchor provided by the upward pulling bearing capacity, the downward pressing bearing capacity and the horizontal bearing capacity of the satellite spiral anchors are greatly improved, and therefore the problems that when a single spiral anchor foundation is designed for a steel pipe pole, the anti-overturning bearing capacity is insufficient, and lateral deformation is too large are effectively solved.
本发明公开了一种输电提升钢管杆抗倾覆能力的复合螺旋锚基础，包括主螺旋锚，所述主螺旋锚的上端沿周向间隔设置有若干卫星螺旋锚，所述主螺旋锚和所述卫星螺旋锚之间设置有连接钢梁，所述连接钢梁和所述卫星螺旋锚支架相互铰接，所述主螺旋锚的顶部设置有与上部钢管杆连接的连接法兰。本发明输电钢管杆的倾覆力矩和水平力由连接法兰传递给主螺旋锚，并由主螺旋锚和卫星螺旋锚共同承担。由于卫星螺旋锚间距加大且倾斜布置，由其上拔、下压、水平承载力所提供的主螺旋锚抗倾覆承载力、抗水平承载力以及相应的基础刚度均大大提高，从而有效解决钢管杆在单一螺旋锚基础设计时，抗倾覆承载力不足和侧向变形过大的难题。
Composite spiral anchor foundation for improving anti-overturning capacity of power transmission steel pipe pole
一种提升输电钢管杆抗倾覆能力的复合螺旋锚基础
FENG BING (author) / ZHU JIANGFENG (author) / HUANG JIAN (author) / CAI YONG (author) / ZHU MA (author) / LYU QING (author) / SUN ZHIHAO (author) / SHANG WEI (author) / SHEN JIAN (author) / ZHANG WEIDE (author)
2023-03-14
Patent
Electronic Resource
Chinese
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