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| 大砂地尾矿库岩溶问题分析 | |
| 引用本文： | 眭素刚,徐世光,范柱国,马宏杰,丁茂斌,王建良.大砂地尾矿库岩溶问题分析[J].辽宁工程技术大学学报(自然科学版),2012,31(4):494-499. |
| 作者姓名： | 眭素刚 徐世光 范柱国 马宏杰 丁茂斌 王建良 |
| 作者单位： | 1. 昆明理工大学国土资源工程学院,云南昆明650093;中国有色金属工业昆明勘察设计研究院,云南昆明650224 2. 昆明理工大学国土资源工程学院,云南昆明650093;云南省地矿局,云南昆明653100 3. 昆明理工大学国土资源工程学院,云南昆明,650093 4. 中国有色金属工业昆明勘察设计研究院,云南昆明,650224 |
| 基金项目： | 云南省自然科学基金资助项目(99D0023M);云南省教育厅科学研究基金重大专项资金资助项目(14051320) |
| 摘 要： | 为了论证在北衙灰岩地区建设尾矿库的可行性,通过对北衙地区岩溶发育规律分析,以钻探、高密度电法、EH4多种勘察手段验证,其岩溶主要受控于张性断裂,库区无张性断裂通过,库区岩溶发育一般;通过对库区岩溶塌陷形成条件分析,地下水位变动和地表雨水入渗对库区岩溶塌陷的动力作用有限,引发库区岩溶塌陷的动力可能为尾矿渣堆渣体荷载,通过对洞体稳定性计算,并运用FLAC3D数值模拟分析,结果表明:尾矿库在堆渣荷载状态下,不会引发库区下伏岩溶塌陷.这为尾矿库的选址、设计提供了极其重要的科学依据,对在岩溶地区建设Ⅱ类场尾矿库具有较强的借鉴意义. |
| 关 键 词： | 尾矿库 岩溶发育规律 岩溶塌陷 形成条件 FLAC3D 洞体稳定性 高密度电法 EH4 |
Analysis on Karst for Dashadi tailings pond |
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| SUI Sugang , XUN Shiguang , FAN Zhuguo , MA Hongjie , DING Maobin , WANG Jianliang.Analysis on Karst for Dashadi tailings pond[J].Journal of Liaoning Technical University (Natural Science Edition),2012,31(4):494-499. | |
| Authors: | SUI Sugang XUN Shiguang FAN Zhuguo MA Hongjie DING Maobin WANG Jianliang |
| Institution: | 1,2(1.School of Land and Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China;2.Kunming Prospecting Design Institute of China Nonferrous Metal Industry,Kunming 650224,China;3.Yunnan Bureau of Geography and Mining,Kunming 653100,China) |
| Abstract: | In order to demonstrate the feasibility of constructing a tailing pond in Beiya region,based on the analysis on the characteristics of Karst development in Beiya region,using multiple survey methods,such as boring,high density resistivity and EH4,it proves that the Karst is mainly controlled by tension fracture,no tension fracture passes the tailing pond proposed,and the development of Karst is classified as ordinary.Analysis on the formation condition of Karst collapse in the tailing pond proposed shows that underground water level variation and rain water penetration have a limited impact on Karst collapse.What causes Karst collapse might be the accumulated slag load.In accordance with cave stability calculation and FLAC3D value analogue analysis,the accumulated slag load will not cause Karst collapse under the tailing pond proposed.This study provides an important scientific basis for the site selection and design of tailing pond.It also sets an example for the construction of Type II tailing pool in a Karst region. |
| Keywords: | tailing pond karst development rule karst collapse formation condition FLAC3D cave stability high density resistivity EH4 |
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