摘要
以安徽淮北杨柳矿首采区为研究背景,建立室内相似材料模型,将灵敏度高、耐久性好的应变感测光缆安装于相似模型内,采用BOTDA分布式光纤感测技术,结合近景摄影技术对开采过程中离层的发育、变形及破坏进行动态监测研究。通过对两者结果的分析,表明分布式光纤感测技术用于相似材料模拟试验变形的监测是可行的,为采动影响下覆岩体变形破坏规律的研究提供一种新手段。
Taking the first mining area in Anhui Huaibei Yangliu mine as research background to establish the model of indoor similar materials,and installs the strain sensing cable which has high sensitivity and good durability in the model,using the distributed optical fiber sensing technology-BOTDA and according to close-range photography to analyse the discipline of coal mining affecting the development, deformation and failure of the overburden bed separation. Comparison of the results show that the distributed optical fiber sensing technology for monitoring and analysis of similar material simulation test deformation is feasible,and this method provides a new way to study the deformation and failure law of overlying rock under the influence of mining.
作者
许文涛
程刚
章杨松
张丹
XU Wen-tao;CHENG Gang;ZHANG Yang-song;ZHANG Dan(Civil Engineering Department,Nanjing University of Science and Technology,Nanjing 210094,China;Department of Computer,North China Institute of Science and Technology,Beijing 101601,China;School of Earth Sciences and Engineering,Nanjing University,Nanjing 210046,China)
出处
《煤炭技术》
CAS
2018年第11期35-37,共3页
Coal Technology
基金
国家自然科学基金青年项目(41702347)
中央高校基本科研业务费专项资金资助(3142017003
3142017074)
河北省高等学校科学技术研究项目(Z2017043)
廊坊市科学技术研究与发展计划项目(2016011053)
国防部科技重点项目(科工二司[2015] 297)
关键词
煤层采动
覆岩破坏
近景摄影技术
BOTDA
coal seam mining
overburden failure
close shot photography technology
BOTDA
