摘要
结合程潮铁矿的工程地质条件以及顶板围岩崩落过程与地面变形的监测结果，认为在金属矿床复杂顶板中存在控制顶板崩落过程的关键结构体。由于关键结构体的存在，顶板的崩落呈间隔性与跳跃性向上发展，在崩落发展到地表之前，地表的变形量较小且没有规律性。在此基础上，探讨了关键结构体的理论框架．讨论了关键结构体的概念与存在奈件、力学特性、空间形态、破断方式及其对应力场的影响。
Integrating the engineering geological condition and monitoring results of caving process of overlying strata and deformation of ground surface, it is granted that there exist key structural blocks which control the caving process in the overlying strata of ore bodies. Because of the existence of key structural blocks, the overlying strata collapse intermittently and abrupty, and the surface deform slowly and complexly. Based on that, the theory structure of key structural blocks is discussed. The conception of key structural blocks, their prerequisites of presence, mechanical characteristics, spacial structure modes, failure modes, effect on stress are discussed also.
出处
《矿业研究与开发》
CAS
北大核心
2006年第B11期7-9,53,共4页
Mining Research and Development
关键词
金属矿床
顶板崩落过程
关键结构体
Underground metal mine, Caving process of overlying strata, Key structural blocks
