| 韩建刚,权知心,丁军召,袁征,张浩,付治国.内蒙兴和曹四夭钼矿床工程地质条件及其对矿山开发的影响[J].地质找矿论丛,2016,31(1):147-154 |
| 内蒙兴和曹四夭钼矿床工程地质条件及其对矿山开发的影响 |
| Engineering geological condition of Caosiyao molybdenum deposit and the influences on exploitation |
| 投稿时间：2015-10-09 |
| DOI：10.6053/j.issn.1001-1412.2016.01.020 |
| 中文关键词: 曹四夭钼矿床 矿床充水 工程地质勘查类型 抗压强度 矿山开发 内蒙古 |
| 英文关键词:Caosiyao molybdenum deposit water filling in deposit engineering geological exploration type compressive strength mine exploitation Inner Mongolia |
| 基金项目:内蒙古自治区地质勘查基金项目(编号:09-1-KC045)资助。 |
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| 中文摘要: |
| 曹四夭钼矿床是目前全国发现并探明的10个超大型钼矿床中唯一以太古宙基底作为赋矿围岩的矿床。太古宇及其岩性为集宁岩群黄土窑岩组浅粒岩和变粒岩;岩石饱和抗压强度10.56~106.02 MPa,属软弱-坚硬岩类;其利于开采而不利于支护。岩、矿体整体属中等-稳定岩体,局部岩体稳定性差,工程地质勘查类型为第三类第一型。在未来矿山开采过程中应注意局部的软弱夹层,尤其是在构造破碎带或碎裂岩石区等地段实施坑道作业易发生矿山工程地质问题,应加强支护;其余岩段稳固性能尚属良好。 |
| 英文摘要: |
| Caosiyao molybdenum deposit is hosted by the basement strata-the Archean medium-strong metamorphic rock series of leptite and granulite in Huangtuyao formation of Jining-Huangtuyao group. The saturated and compressive strength of the host is 10.56-106.02 MPa belonging to weak-hard rocks which are conductive to mining but unfavorable to support. The rocks and ore body are generally medium-stable but partially weak. The engineering geological exploration belongs to the third kind of type one. In the future mining, more attention should be paid to the weak intercalation, especially in structurally fractureed zone and cataclastic area where engineering geological problems are easily to happen in tunnel and mining works. |
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