| 拉伸状态下充填体损伤演化及本构方程研究 |
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| 引用本文： | 邓代强,姚中亮,唐绍辉,杨耀亮.拉伸状态下充填体损伤演化及本构方程研究[J].土工基础,2006,20(6):63-66. |
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| 作者姓名： | 邓代强 姚中亮 唐绍辉 杨耀亮 |
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| 作者单位： | 长沙矿山研究院,湖南长沙,410012 |
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| 摘 要： | 1引言抗拉强度是充填体的重要力学性能之一。充填体中存在有微裂隙,如裂纹、气泡、孔穴和离析等,这些内部的微观缺陷或不连续现象对充填体宏观力学性能起决定性作用。对于矿山胶结充填体的内部微开裂和由微开裂引起的各类力学行为的研究很少。为计算和预测安庆铜矿大体积充填体
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| 关 键 词： | 刚性试验机 损伤演化 脆性材料 本构方程 损伤变量 |
| 文章编号： | 1004-3152(2006)06-0063-04 |
| 修稿时间： | 2005年9月20日 |
Study on Damage Evolution and Constitutive Equation of Backfill Under Tensile Condition |
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| DENG Dai qiang,YAO Zhong liang,TANG Shao hui,YANG Yao liang.Study on Damage Evolution and Constitutive Equation of Backfill Under Tensile Condition[J].Soie Engineering and Foundation,2006,20(6):63-66. |
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| Authors: | DENG Dai qiang YAO Zhong liang TANG Shao hui YANG Yao liang |
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| Abstract: | The uniaxial spliting tensil strength tests of backfill,at a different ratio of filling materials,in the special large-size stope in An'qing copper mine were made.According to the measured full stress-strain curve,the damage evalution and constitutive equation of backfill in the state of tensile stress was formulated and the damage constitutive relation and damages variables were analyzed.The coincidence of theoretic curve and test curve can be better.The test results can be reference to the engineering analysis and design concerned. |
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| Keywords: | rigid testing machine damage evaluation fragile material constitutive equation damage variables |
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