摘要
针对厚煤层巷道锚杆、锚索、网联合支护顶板离层没有明显预兆、危害不易观察,现场常用的机械式离层仪记录数据分析、处理难的现状,利用材料力学梁的弯曲理论计算公式,计算得到锚杆、锚索、网联合支护顶板离层的临界值,比较现场监测数据,验证了这种方法计算顶板离层极限值可以作为厚煤层煤巷顶板离层数据分析的依据。
In view of no obvious sign for roof separation in thick coal roadway with combined support of bolt, cable and network, and the harm not easy to observe, and the analysis and treatment difficulty of data recorded by in-situ mechanical separation instrument, the theoretical calculation formula of beam bending in mechanics of materials was used to calculate roof separation critical value, and compared it with site monitoring data, which proved that the roof separation limits calculated by using this method can be taken for the basis of analyzing thick coal roof separation data.
出处
《中国矿山工程》
2015年第5期41-43,共3页
China Mine Engineering
关键词
联合支护
锚岩支护体
离层临界值
combined support
bolt-rock anchor support body
separation critical value
