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| 不良地层竖井工程变形分析与返修支护设计 | |
| 引用本文： | 王贤来,姚维信,高谦,陈得信. 不良地层竖井工程变形分析与返修支护设计[J]. 有色金属, 2011, 63(2) |
| 作者姓名： | 王贤来 姚维信 高谦 陈得信 |
| 作者单位： | 1. 中南大学,长沙410083;金川集团有限公司,甘肃金昌737100 2. 昆明理工大学,昆明650093;金川集团有限公司,甘肃金昌737100 3. 北京科技大学,北京,100083 4. 金川集团有限公司,甘肃金昌,737100 |
| 基金项目： | “十一五”国家科技支撑计划重点项目(2008BAB32B01) |
| 摘 要： | 根据某矿山不良围岩的主井工程变形破坏特征,分析了该工程变形破坏的主要影响因素,在此基础上,进行了不同支护方案的井筒变形分析和稳定性研究,提出了释放位移的让压支护施工工艺,并通过数值模拟,建立了不同支护条件井筒收敛变形和工程稳定性与支护参数的关系,明确了最大允许释放位移量.根据理论分析和数值模拟确定了主井返修支护方案,并进行返修试验段试验.返修主井工程的变形监测和强度计算结果表明:主井返修支护方案是比较合理和安全可靠的,并在主井的返修施工中得以采用.目前,主井返修施工已经全部完成,工程基本处于稳定状态. |
| 关 键 词： | 不良地层 竖井工程 变形破坏 返修支护 稳定性分析 |
Deformation Analysis and Repair Support Design of Main Shaft with Weak Surrounding Rock Masses |
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| WANG Xian-lai , YAO Wei-xin , GAO Qian , CHEN De-xin. Deformation Analysis and Repair Support Design of Main Shaft with Weak Surrounding Rock Masses[J]. Nonferrous Metals, 2011, 63(2) | |
| Authors: | WANG Xian-lai YAO Wei-xin GAO Qian CHEN De-xin |
| Affiliation: | WANG Xian-lai1,4,YAO Wei-xin2,GAO Qian3,CHEN De-xin4(1.Central South University,Changsha 410083,China,2.Kunming University of Science and Technology,Kunming 650093,3.University of Science and Technology Beijing,Beijing 100083,4.Jinchuan Group LTD,Jinchang Gansu 737100,China) |
| Abstract: | The deformation characteristics of main shaft engineering with weak surrounding rock were analyzed,the major influencing factor of main shaft deformation was presented.And then,based on this,deformation analysis and stability of shaft with different support scheme were finished,the yield support with displacement-release was brought up,the relationship between convergence,safety factor as well as support parameters were established by means of numerical simulation,the maximum permitted displacement-release ... |
| Keywords: | weak strata shaft engineering deformation and failing repair support stability analysis |
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