输电线路基础抗拔承载力计算的简化剪切法  

The Simplified Shearing Method for the Calculation of the Uplift Bearing Capacity of the Foundation of Transmission Lines

作　　者：邱昊茨 武奋前 李扬森 林少远 陈玮雨 叶欣 郭经峰 QIU Haoci;WU Fenqian;LI Yangsen;LIN Shaoyuan;CHEN Weiyu;YE Xin;GUO Jingfeng(Quanzhou Power Supply Company,State Grid Fujian Electric Power Co.,Ltd.,Quanzhou,Fujian Province,362011 China;State Grid Fujian Electric Power Co.,Ltd.,Fuzhou,Fujian Province,350003 China;Fujian Yongfu Electric Power Design Co.,Ltd.,Fuzhou,Fujian Province,350100 China)

机构地区：[1]国网福建省电力有限公司泉州供电公司,福建泉州362011 [2]国网福建省电力有限公司,福建福州350003 [3]福建永福电力设计股份有限公司,福建福州350100

出　　处：《科技资讯》2023年第21期79-83,共5页Science & Technology Information

基　　金：国家电网有限公司科技项目(项目编号:52133022000K)。

摘　　要：剪切法是计算输电线路基础抗拔承载力的重要方法,规程剪切法参数多,计算繁琐。基于剪切法简化计算模型,推导得到了输电线路基础抗拔承载力的简化剪切法计算公式,并通过与规程剪切法进行对比分析,得到如下结果:简化剪切法可以不用考虑基础复杂的几何形状,计算更为便捷;在基础临界埋深范围内,该文简化剪切法计算的基础抗拔承载力差异系数随基础埋深的增加而明显增加,随土体内摩擦角增加而明显减小;简化剪切法计算的基础抗拔承载力结果普遍略大于规程剪切法;简化剪切法与规程剪切法计算结果在非松散土体情况下吻合较好。The shearing method is an important method to calculate the uplift bearing capacity of the foundation of transmission lines,and the procedural shearing method has many parameters and complicated calculation.Based on the simplified calculation model of the shearing method,this paper derives the calculation formula of the simplified shearing method of the foundation of transmission lines,and obtains the following results through comparing and analyzing it with the procedural shearing method.The shearing method in this paper can be calculated more conveniently without considering the complex geometry of the foundation.In the critical depth range of the foundation,the difference coefficient of the uplift bearing capacity of the foundation calculated by the simplified shearing method in this paper increases significantly with the increase of the depth of the foundation,and it decreases significantly with the increase of the friction angle in soil.The result of the uplift bearing capacity of the foundation calculated by the simplified shearing method in this paper is also generally slightly larger than that of the procedural shearing method.The calculation results of the simplified shearing method is consistent with that of the procedural shearing method in the case of non-loose soil.

关 键 词：输电线路 基础 抗拔承载力 剪切法 临界埋深 

分 类 号：TM75[电气工程—电力系统及自动化]