| 水泥-尾砂充填体常规三轴压缩性能研究 |
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| 引用本文： | 邓代强,刘芳标,姚中亮,唐绍辉,杜子建,柳小胜,欧任泽. 水泥-尾砂充填体常规三轴压缩性能研究[J]. 矿业研究与开发, 2011, 0(3): 15-16,54 |
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| 作者姓名： | 邓代强 刘芳标 姚中亮 唐绍辉 杜子建 柳小胜 欧任泽 |
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| 作者单位： | 长沙矿山研究院;北京科技大学土木与环境工程学院; |
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| 基金项目： | “十一五”国家科技支撑计划项目(2008BAB32B01) |
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| 摘 要： | 由充填体常规三轴压缩强度和变形试验得到了峰荷应力和应变及相关试验曲线,对充填体三轴受压渐进破坏过程进行了描述分析。试验中看到,充填体在轴压下产生的裂缝的发展因施加围压而受到抑制,这种约束与围压成正比,即充填体破坏形式从零或低围压的脆性破坏到高围压的塑性软化流动。工程实际中,充填体多数情况下处于多轴受力状态,因此对充填材料进行多轴应力下的强度和变形行为研究具有现实意义。
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| 关 键 词： | 充填体 常规三轴压缩 峰值应力 围压 位移 应力-应变曲线 |
Investigation on Properties of Cement-Tailing Backfill underConventional triaxial compression |
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| DENG Daiqiang,LIU Fangbiao,Yao Zhongliang,Tang Shaohui,Du Zijian ,LIU Xiaosheng,OU Renze. Investigation on Properties of Cement-Tailing Backfill underConventional triaxial compression[J]. Mining Research and Development, 2011, 0(3): 15-16,54 |
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| Authors: | DENG Daiqiang LIU Fangbiao Yao Zhongliang Tang Shaohui Du Zijian LIU Xiaosheng OU Renze |
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| Affiliation: | DENG Daiqiang1,LIU Fangbiao2,Yao Zhongliang1,Tang Shaohui1,Du Zijian 2,LIU Xiaosheng1,OU Renze1(1.Changsha nstitute of Mining Research,Changsha,Hunan 410012,China,2.School of Civil & Environment Engineering,University of Science & Technology Beijing,Beijing 100083,) |
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| Abstract: | By the conventional triaxial compression strength and deformation test of cement-tailing backfill,the peak stress and strain as well as correlative testing curves were obtained.The progressive failure process of backfill under triaxial compression was described and analyzed.It was observed from tests that the development of cracks produced under axial load was suppressed because of confining pressure,and the suppression effect improved with confining pressure increasing.Under no confining pressure or low co... |
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| Keywords: | Backfill Conventional triaxial compression Peak stress Confining pressure Displacement Stress-strain curve |
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