永定县东中煤矿防治水系统安全危险性评价

永定县东中煤矿为联合改造矿井,该矿地质构造和水文地质条件复杂,为了做好矿山和矿井安全生产设计、安全管理,文章从东中煤矿的自然条件、地质构造、水文地质条件因素等方面对东中煤矿在建设和生产过程中可能存在的危险,有害因素进行辨识,分析危险有害因素引发灾害事故的可能性及其灾害危险程度,供矿井设计和安全管理参考。

大定源瞬变电磁法在东中煤矿水文地质勘探中的应用

大定源瞬变电磁法是基于煤矿采空区、断层和岩溶陷落柱与围岩存在电阻率差异,具有较高的信噪比,划分异常详细。通过东中矿区水文地质勘探显示,大定源瞬变电磁法能有效地解决深部灰岩陷落柱及断层破碎带等地质问题,应用前景广泛。

永定县东中煤矿构造特征及其控煤作用

以永定县东中煤矿资料为基础,从钻孔及煤矿井下揭露煤层厚度、结构及其变化规律入手,观测井下煤层形变现象,全面分析构造特征及其控煤作用,期望达到对矿井生产具有一定指导作用之目的。

Problems and countermeasures on main mineral resource sustainable supply in northeastern China

northeastern China is an important old industrial base in China. Mineral resources are the foundation of industry development. However, because of long-term exploitation of mineral resources in northeastern China, the mineral resources reserves decrease gradually and some mineral resources are nearly exhausted, which restricts revitalization and sustainable development of the northeast old industrial base. On the basis of the comprehensive analysis of development and utilization status of mineral resources and supply and demand situation of main mineral resources in northeastern China, the authors put forward countermeasures on main mineral resources sustainable supply in northeastern China.