| 三维地质力学模型破坏试验不同加载程序对比分析 |
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| 引用本文： | 张建东,张林,陈建叶,王梅.三维地质力学模型破坏试验不同加载程序对比分析[J].四川水力发电,2006,25(5):74-77. |
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| 作者姓名： | 张建东 张林 陈建叶 王梅 |
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| 作者单位： | 四川大学,水利水电学院,四川,成都,610065 |
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| 摘 要： | 结合沙牌RCC拱坝坝肩稳定三维地质力学模型试验,就破坏试验中的综合法进行了两种不同方案的研究:一是先在正常荷载下超载1.2倍P0(P0为正常工况下水荷载)再降强,直到坝肩破坏失稳;二是先在正常荷载下超载4.2倍P0再降强,直到坝肩破坏失稳。对比分析两方案拱坝坝肩的变位分布情况、坝肩的破坏机理和综合稳定安全度等,得出了较为合理的综合法试验加载程序,为今后相关工程的试验研究提供了重要的参考依据。
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| 关 键 词： | 地质力学模型 加载程序 坝肩变位 破坏机理 综合安全度 对比分析 沙牌水电站 |
| 文章编号： | 1001-2184(2006)05-0074-04 |
| 收稿时间： | 2005-11-10 |
| 修稿时间： | 2005年11月10 |
Comparative Analysis of Different Loading Procedures for 3D Geo-mechanical Model Failure Testing |
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| ZHANG Jian-dong,ZHANG Lin,CHEN Jian-ye,WANG Mei.Comparative Analysis of Different Loading Procedures for 3D Geo-mechanical Model Failure Testing[J].Sichuan Water Power,2006,25(5):74-77. |
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| Authors: | ZHANG Jian-dong ZHANG Lin CHEN Jian-ye WANG Mei |
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| Abstract: | In the light of 3D geo-mechanical model testing for Shapai RCC arch dam abutment stability study,two different schemes for overall method in the failure test are analyzed.In No.1 Scheme,overload 1.2 times of P_0(the water load in normal condition),then decrease the strength of the structure until collapsing;In No.2 Scheme,overload 4.2 times of P_0,then decrease the strength of the structure until collapsing.Base on the distribution of displacement,the failure mechanism and overall safety margin of the abutment,reasonable loading procedure in overall method has been obtained with comparative analysis method.Important basis for future similar project testing is provided. |
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| Keywords: | geo-mechanical model loading procedure abutment displacement failure mechanism overall safety margin comparative analysis Shapai Hydropower Station |
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