露天台阶面下伏空区顶板的爆破崩落处理（英文）

发布时间：2018-03-21 04:54

本文选题：露天开采　切入点：采空区　出处：《Transactions of Nonferrous Metals Society of China》2017年03期 　论文类型：期刊论文

【摘要】：基于激光三维扫描技术构建空区三维实体模型,运用理论分析和数值模拟的方法对空区上覆岩层的稳定性进行分析;采用声发射技术对空区上覆岩层进行跟踪监测,形成空区上覆岩层安全性的评价体系。同时,提出了运用垂直深孔爆破消空处理和一次成井及深孔爆破消空一体化处理两种空区处理方案,将两种方案进行对比分析后发现,垂直深孔爆破消空处理方案炸药单耗和总装药量较大,但其爆破网络结构简单,现场作业量小。而一次成井及深孔爆破消空一体化处理方案炸药单耗和总装药量小,但对钻孔精度、装药及爆破网络连接等都有较高的要求,现场作业量大。
[Abstract]:The 3D laser scanning technology to build three-dimensional model of mined out area based on using the methods of theoretical analysis and numerical simulation on the stability of the overburden gob is analyzed; the acoustic emission technology of goaf overlying strata were monitored, the formation of goaf overlying strata safety evaluation system. At the same time, the use of the vertical deep hole blasting treatment and eliminating empty one into the wells and deep hole blasting fire integration treatment of two kinds of goaf treatment scheme, two kinds of schemes are analyzed and found that the vertical deep hole blasting treatment scheme of eliminating empty explosive consumption and total quantity is large, but the blasting network has the advantages of simple structure, small amount of field operations and time. Well drilling and deep hole blasting treatment scheme of eliminating empty integration of explosive factor and total quantity is small, but the accuracy of drilling, charging and blasting network connections have higher requirements, the amount of field operations.

【作者单位】：中南大学资源与安全工程学院;深部金属矿产资源开发与灾害控制湖南省重点实验室;
【基金】：Projects(51204206,41272304,41372278) supported by the National Natural Science Foundation of China
【分类号】：TD327.2;TD235

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