Water abundance of mine floor limestone by simulation experiment

详细信息    查看全文

• 作者：Cai Yang^a ; ^b ; ^{yangcaicumt@163.com" class="auth_mail" title="E-mail the corresponding author} ; Shengdong Liu^a ; ^b ; ^{liushengdong@126.com" class="auth_mail" title="E-mail the corresponding author} ; Lu Liu^b
• 关键词：Quantification ; Water abundance ; Mine floor limestone ; Apparent resistivity ; Numerical simulation and physical simulation
• 刊名：International Journal of Mining Science and Technology
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：26
• 期：3
• 页码：495-500
• 全文大小：2586 K

文摘

The water abundance of mine floor limestone needs to be solved urgently as the average depth of coal mining in China has increased gradually. A method is presented to discuss water abundance with the numerical and physical layered geoelectrical model being established in the half-space, full-space and full-space with tunnel, respectively. The parameters of water abundance are changed in this study, which includes water quantity, water content and volume of abnormity of water-containing abnormity. Results indicate that the different work fields have different macroscopic influences on the apparent resistivity, and the water abundance parameters of water-containing abnormity have quantitative relationship with the apparent resistivity mean in abnormal regions (three-dimensional space region). The quantitative relationships are shown as following: firstly, the amount of water injection has negative linear correlation with the apparent resistivity mean; secondly, when abnormity is unsaturated, there is a negative power function relationship between water content and apparent resistivity mean; thirdly, the volume of abnormity and apparent resistivity mean behave as a decreasing power function law.