大理石地下开采顶板合理厚度研究
投稿时间:2018-06-04  修订日期:2018-12-07  点此下载全文
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作者单位E-mail
韩进仕 广西大学 资源环境与材料学院 2213347205@qq.com 
杨鹏帅 广西大学 土木建筑工程学院  
何佳峰 德阳昊华清平磷矿有限公司  
范秋雁 广西大学 资源环境与材料学院 2100285137@qq.com 
黄伟 广西大学 资源环境与材料学院  
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
中文摘要:亿隆大理石石材矿山需在一定厚度的安全矿柱及风化层下进行地下石材开采,然而安全矿柱过厚会导致资源浪费,反之不能保证矿山生产安全。根据亿隆石材矿山的矿体特征,利用理论计算及FLAC3D软件分析了不同空区跨度下的安全矿柱合理厚度。经综合分析与研究,得到了不同空区跨度与顶板合理厚度的关系。基于亿隆石材矿山的最大开采跨度36m,同时考虑4.5m厚的风化层,推荐矿山留设28.5m厚的顶板合理厚度。
中文关键词:石材地下开采  FLAC3D  安全矿柱  顶板合理厚度
 
Study on Reasonable Thickness of Roof for Marble Underground Mining
Abstract:Yilong marble stone mines should be mined under certain thickness of safety pillars and weathering layer. However, the security pillar is too thick will lead to the waste of resources, on the contrary, the safety of mine production can not be ensured. According to the characteristics of the ore bodies in the Yilong stone mine, the reasonable thickness of safe pillar under different span of goaf was analyzed by theoretical calculation and FLAC3D software. Through comprehensive analysis and research, the relationship between the various span of the empty area and the reasonable thickness of the roof was obtained. Based on the largest mining span is 36m in the mine and the thickness of weathering layer is 4.5m, the reasonable thickness of roof in Yilong mine is recommended as 28.5m.
keywords:underground mining  FLAC3D  safety pillar  reasonable thickness of roof
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