采空区对地表建筑物的影响评价方法研究

Study on the Evaluation Method of Goaf's Influence on Surface Buildings

为研究金属矿山采动灾害影响,论述了金属矿山采空区上覆岩层移动对地表建筑物影响评价理论和技术方法,即"三带理论"、岩石移动带理论和数值模拟方法;指出了金属矿山空区稳定性和岩石移动的主要影响因素。结合某铁矿采空区的实际情况,综合应用这3种方法对该铁矿进行了定性、定量评价。分析3种评价方法的特点,旨在探索金属矿山的采动影响评价方法,以便保护矿区附近建筑物的安全,减小采动灾害对矿山企业及附近居民生命财产损失。

In order to study the disaster influence of metal mines mining, the theories and technological methods for evaluating the influence of the rock movement above goal on the surface buildings are firstly expounded, namely, three zones theory, movement zone of rock and numerical simulation. Then the main factors affecting the stability of goaf and the rock movement are pointed out. By taking the goaf of an iron mine as an example, a qualitative and quantitative influence assessment is made by comprehensively using these three methods. Finally, the traits of the three evaluation methods are analyzed so as to figure out the methods suitable for evaluating the effect of mining, to protect the safety of those buildings around mines, and to reduce the loss of property and life caused by mining disasters.