输电塔原状土基础抗拔承载力理论计算 |
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引用本文: | 曾二贤,李 隽,王开明,徐兴中.输电塔原状土基础抗拔承载力理论计算[J].电网与水力发电进展,2010,26(3). |
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作者姓名: | 曾二贤 李 隽 王开明 徐兴中 |
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作者单位: | 中南电力设计院, 武汉 430071;中南电力设计院, 武汉 430071;中南电力设计院, 武汉 430071;中南电力设计院, 武汉 430071 |
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基金项目: | 中国电力顾问集团公司科技项目(DG2-T03-2007) |
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摘 要: | 基于极限平衡法和Mohr-Column屈服理论,采用规范推荐的破裂面方程,通过公式推导,提出了一种计算输电线路原状土扩底基础抗拔承载力的理论分析方法。通过室内试验和现场测试结果进行验证分析,并与目前规范计算法和相关文献理论计算值进行了比较,证实所提计算方法与试验和其他算法具有较好的吻合性,并且能相对准确地计算输电线路原状土基础抗拔承载力大小。
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关 键 词: | 输电塔 原状土 扩底基础 抗拔承载力 Matlab |
Theoretical Calculations of Uplift Capacity of Undisturbed Soil Foundation for Transmission Towers |
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Authors: | ZENG Er-xian LI Jun Kai-ming and XU Xing-zhong |
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Affiliation: | ZENG Er-xian; LI Jun; WANG Kai-ming; XU Xing-zhong(Central Southern China Electric Power Design Institute; Wuhan 430071; Hubei Province; China); |
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Abstract: | In this paper,a new approach to analyze the uplift bearing capacity of the enlarged-base in undisturbed soil is deduced and put forward based on the limiting equilibrium,Mohr-Column yielding criterion and the failure surface equation according to Technical Regulations for overhead transmission line foundation designing.Then,verification is done by lab tests and in-site tests and comparison is made between the test results in the current standard calculation method and with the theoretical calculation values... |
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Keywords: | Matlab |
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