摘要
针对顶板下沉的问题,提出了将顶板离层的小位移量转化为位移传感器的大位移量,推导出顶板离层与信号量的关系,利用该关系设计了一种多基点顶板离层指示仪。该仪器在中煤集团马营塔矿进行了实践研究,通过对所得数据进行处理分析,准确地得出了9103回风巷顶板离层情况,该离层指示仪可以测量的最小顶板岩层离层量为0.19 mm,为顶板分类、顶板支护方案的优化等提供了技术支持。
Aiming at the roof subsidence of coal mine roadway,the small roof separation was converted into the big displacement of sensor,the relationship between the displacement and semaphore was derived,and the multi point roof separation indicator was designed.It was applied to Mayingta Coal Mine of Zhongmei Coal Group.With the analysis on the data obtained,the roof separation conditions of the air return gateway in No.9103 coal mining face was accurately analyzed in detail.The minimum roof separation can be measured is 0.19 mm.
出处
《煤炭工程》
北大核心
2017年第3期122-125,共4页
Coal Engineering
基金
国家重点基础研究发展计划(973计划)资助项目(2011CB201204)
国家自然科学基金重点项目(51234005)
关键词
位移传感器
顶板离层
顶板监测
多基点
displacement sensor
roof separation
roof monitoring
multi point
