采动覆岩裂隙演化规律的定量描述  

Quantitative Description of Fissure Development Rule of Overlying Strata Influenced by Mining

作　　者：李春睿[1,2] 齐庆新[3,4] 彭永伟[1,2] 李宏艳[3,4] 

机构地区：[1]煤炭科学研究总院开采设计研究分院,北京100013 [2]天地科技股份有限公司开采设计事业部,北京100013 [3]煤炭科学研究总院煤炭资源开采与环境保护国家重点实验室,北京100013 [4]煤炭科学研究总院科技发展部,北京100013

出　　处：《煤矿开采》2010年第6期4-8,共5页Coal Mining Technology

基　　金：国家重点基础研究发展计划(973项目)"预防煤矿瓦斯动力灾害的基础研究"(2005CB221503)

摘　　要：对采动覆岩裂隙的定量描述一直是困扰采矿工程的科学问题。通过室内相似材料模拟实验,对综放工作面覆岩裂隙破坏过程进行了监测,并根据采动覆岩裂隙的发育过程在时间及空间的数字成像,提出了应用"双重分形"理论揭示采场覆岩裂隙的萌生、扩展、贯通的过程,获得了采动条件下覆岩裂隙时空演化的定量描述方法。Quantitative description for fissure of overlying strata is a scientific problem to resolve in mining engineering.The procedure of fissure development of overlying strata over fully-mechanized caving mining face was monitored by indoor analogue simulation method.On the basis of data images from simulation,the paper presented that applying double fractal theory to describing the procedure of fissure occurrence,development and penetration.It finally obtained quantitative description method of fissure＇s time-space evolvement during mining process.

关 键 词：采动煤岩体 覆岩裂隙演化 裂隙定量描述 双重分形 相似模拟实验 

分 类 号：TD325.4[矿业工程—矿井建设]