| 高应力条件下排土场非线性强度参数及稳定性分析研究 |
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| 引用本文： | 崔旋,唐飞,张树茂.高应力条件下排土场非线性强度参数及稳定性分析研究[J].有色金属(矿山部分),2021,73(4):23-26. |
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| 作者姓名： | 崔旋 唐飞 张树茂 |
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| 作者单位： | 矿冶科技集团有限公司,云南铜业股份有限公司矿山研究院,矿冶科技集团有限公司 |
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| 基金项目： | 十三五国家重点研发计划项目(2017YFC0804608) |
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| 摘 要： | 通过在实验室内开展排土物料的大型高压静力三轴剪切试验,研究了高排土场物料应力-应变关系及非线性强度指标,为排土场稳定性分析提供基础力学数据。在此基础上建立了能够反映排土场实际边界条件的计算模型,并充分考虑高围压颗粒破碎现象对边坡稳定性的影响,其研究成果对高排土场堆排及加固具有一定的指导意义。
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| 关 键 词： | 排土场 稳定性 非线性 高应力 |
| 收稿时间： | 2020/12/29 0:00:00 |
| 修稿时间： | 2021/1/19 0:00:00 |
Research on nonlinear strength parameters and stability analysis of waste dump under high stress conditions |
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| Authors: | CUI Xuan TANG Fei and ZHANG Shumao |
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| Affiliation: | BGRIMM Technology Group,Mining Institute of Yunnan Copper Co, Ltd,BGRIMM Technology Group |
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| Abstract: | In order to study the stress-strain relationship and nonlinear strength indexes of high dumping materials, the large-scale high-pressure static triaxial shear test of dumping materials is carried out in the laboratory and provide basic mechanical data for the stability analysis. On this basis, a calculation model that can reflect the actual boundary conditions of the dump has been established, and the slope stability has been fully considered the impact of the crushing phenomenon under high confining pressure. The research has some significance for heaping and reinforcement of high waste dump. |
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| Keywords: | waste dump stability nonlinear high stress |
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