光测方法在岩层移动相似模拟实验中的应用  

Application of optical measurement method in strata movement simulation experiment

作　　者：王怀文[1] 周宏伟[1] 左建平[1] 王志国[1] 谢和平[2] 

机构地区：[1]中国矿业大学(北京)岩石力学与分形研究所,北京100083 [2]四川大学,四川成都610065

出　　处：《煤炭学报》2006年第3期278-281,共4页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(10372112;50221402);教育部新世纪优秀人才支持计划资助项目(NCET-04-0491)

摘　　要：以淮南潘一矿11-2槽煤层2171(1)工作面为工程背景,进行了深部开采情况下上覆岩层的移动和地表沉陷相似材料模型实验.将非接触式的光学测量技术数字散斑相关方法引入到该实验中来,对该方法应用于相似材料模型实验的精度进行了分析,通过计算得到了不同推进度下的上覆岩层移动的全场等高线云图,分析了上覆岩层的移动规律.结果表明,数字散斑相关方法不仅克服了传统机械点测量方法的某些缺点,同时具有较高的精度,可用于相似材料的模型实验.To investigate the law of movement of the mined rock under the condition of mining in depth, a simulative experiment of similar materials was carried out according to the actual status of a working face in Huainan Coal Group Co. , Ltd. The digital speckle correlation method （DSCM）, a non-contact photomechanical measurement technology, was introduced into this experiment. The precision of the digital speckle correlation method was analyzed in this experiment. The strata movement displacement fields under different exploitation lengths were obtained through correlation an DSCM overcomes the alysis shortc and the law of movement of the mined rock was analyzed. Results indicate that the omings of traditional mechanical point measurement method, and its precision was enough for similarity simulation experiment.

关 键 词：数字散斑相关方法 岩层移动 相似模拟实验 

分 类 号：TD325[矿业工程—矿井建设]