九顶山铜钼矿井下通风系统阻力测定结果分析与对策措施

以九顶山铜钼矿为例,系统介绍矿井通风阻力的测定方法、测点布置及测定路线选择,依据测定结果对矿井通风系统进行合理性分析,并提出降低矿井通风阻力的对策措施。为降低通风电耗、减少通风费用、减少风压损失和保证矿井安全生产提供科学的理论依据。     

Discussion on lower coal group＇s mining condition above aquifer in Sihe coalfield,Jincheng

以山西沁水煤田寺河矿区为工程背景,依托水文地质补充勘探数据,从研究奥陶系峰峰组顶部岩层的阻水能力出发,论证了矿区内相对隔水层的存在性,最后通过流固耦合数值模拟研究证明了相对隔水层存在时,下组煤带压开采条件得到明显改善。因此研究下组煤带压开采条件的关键因素之一是确定奥陶系顶部岩组本身是否具备较好的阻水能力。     

创新的思想政治工作是矿山发展不可缺少的内在动力

主要阐述了企业在新的形势下如何紧密联系工作实际,积极开拓创新,努力探索思想政治工作的新特点、新规律和新方法,不断提高思想政治工作的效果。详细介绍了四川久大制盐有限责任公司长山盐矿在创新思想政治工作方面的探索实践。     

30 m超高加筋土挡墙在宁化行洛坑钨矿的应用

论述了超高加筋土挡墙的设计过程与建造及挡墙的变形特征。较大墙高宜采用加筋土挡墙，其对地基的适应性强，占地少，建造周期短。行洛坑钨矿原矿运输铁路跨越深沟谷，与栈桥相比较后，采用了加筋土挡墙方案，设计建造了二级30 m超高加筋土挡墙作为路基，1 a累计最大水平位移16～83 mm，最大沉降24～115 mm，建成5 a来运行正常。     

Hope for Animals and Their World: How Endangered Species are Being Rescued from the Wild

The presence of heavy metals in mine tailings poses potential threats to environment and human health. The paper reports an investigation of the effects of initial pH on bioleaching of heavy metals (Cu, Zn and Pb) from mine tailings by indigenous sulphur-oxidising bacteria.     

Ultimate pit limit determination for semi mobile in-pit crushing and conveying system: a case study

ABSTRACT

Semi mobile in-pit crushing and conveying systems have different pit shape requirements to traditional truck haulage systems due to the inclusion of a conveyor flight in the pit. As the shape of a pit is heavily influenced by the ultimate pit limit, it is desirable to have the additional shape requirements included in the ultimate pit limit determination process. This paper introduces in-pit crushing and conveying systems and discusses their differences and benefits. The differences and requirements of pit design between truck haulage and semi mobile in-pit crushing and conveying systems are then highlighted. A method of including the additional requirements during the ultimate pit limit determination is presented. A case study has been included that shows the method working successfully, with scheduling of the pits to further highlight semi mobile in-pit crushing and conveying viability. This case study shows that through the reduced mining costs, a semi mobile in-pit crushing and conveying pit can return a higher Net Present Value, despite being smaller than the traditional truck and shovel pit for the same deposit. The development of this method provides the opportunity for the metalliferous industry to accurately determine ultimate pit limits for a mines considering the use of semi mobile in-pit crushing and conveying systems.     

矿压监测在顶板安全管理中的应用

论述了顶板管理是高档普采工艺中的一项重点也是难点工作。应用矿压监测技术，科学地监测、分析顶板压力及活动状态，能为顶板管理工作提供准确的信息和决策依据，以便提前采取相应措施进行支护，有效防止顶板冒落、垮落，保证采煤各工序正常进行及作业人员的人身安全。     

同煤集团办公楼加层及内外装修改造设计探讨

大同煤矿集团公司办公大楼年久失修,已不适合时代发展的需要。为了使办公楼更好地服务于集团公司,对其进行了改造。文章就其改造设计进行了探讨。     

浅谈我国矿山安全科学的发展前景和研究任务

本文在理论方面介绍了安全科学性质、安全劳动与安全经济效益之间的辩证关系，首次提出了“矿山安全科学”的概念，论述了这门新学科的发展前景和内外动力，提出了我国矿山安全科学的研究任务。     

攀西钒钛矿资源的开发和利用

文中就钢铁发展布局和充分开发利用攀西钒钛资源的意义进行了分析，对矿山建设资金筹集和矿山税制等改革措施作了探讨。