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| 安太堡露天矿排土场基底黄土过载现象数值模拟 | |
| 引用本文： | 缪海宾,王建国,王来贵.安太堡露天矿排土场基底黄土过载现象数值模拟[J].辽宁工程技术大学学报(自然科学版),2011,30(4):489-492. |
| 作者姓名： | 缪海宾 王建国 王来贵 |
| 作者单位： | 1. 煤炭科学研究总院沈阳研究院,辽宁抚顺113122;辽宁工程技术大学力学与工程学院,辽宁阜新123000 2. 煤炭科学研究总院沈阳研究院,辽宁抚顺,113122 3. 辽宁工程技术大学力学与工程学院,辽宁阜新,123000 |
| 基金项目： | 辽宁省教育厅创新团队研究项目资助(2007T076) |
| 摘 要： | 为了研究黄土基底排土场破坏机理,对安太堡露天矿排土场基底黄土进行过载现象数值模拟研究。结果表明在排弃物不断回填的过程中,基底黄土逐渐出现塑性区域,最终由于基底软塑带图所承受载荷超过其极限值而使得自身强度急剧降低,从而产生破坏。并且通过二次回填的方法,可以防止塑性变形值增大过快而使得软塑带土过早的产生过载现象,这样更适合于排土场的规划。 |
| 关 键 词： | 黄土 排弃物 过载 数值模拟 塑性区域 极限值 塑性应变 排土场 |
Numerical simulation on overloading of basement loess at dump of Antaibao open pit |
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| MIAO Haibin,WANG Jianguo,WANG Laigui.Numerical simulation on overloading of basement loess at dump of Antaibao open pit[J].Journal of Liaoning Technical University (Natural Science Edition),2011,30(4):489-492. | |
| Authors: | MIAO Haibin WANG Jianguo WANG Laigui |
| Institution: | MIAO Haibin1,2,WANG Jianguo1,WANG Laigui2(1.Shenyang Institute,CCRI,Fushun 113122,China,2.Collage of Mechanics and Engineering,Liaoning Technical University,Fuxin 123000,China) |
| Abstract: | In order to investigate the failure mechanism of loess based dump,the overloading phenomenon of loess base is numerically simulated in this study.The results show that when the waste is continuously dumped over loess base,a plastic zone occurs at loess base.Eventually,when the real load exceeds the limit load loess base,the strength of loess base will rapidly decrease,and result in a base failure.However,using the second backfill method,it can prevent the rapid plastic deformation and overloading of loess b... |
| Keywords: | loess waste overloading numerical simulation plastic zone limitation plastic strain dump |
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