“两硬”大采高采场覆岩运动规律相似材料模拟研究  

Testing Study on Similar Material Simulation for Law of Overlying Strata Movement in "Two Hard" Mining Site with Large Mining Height

作　　者：侯明阳[1] 代春泉[1] 杜金顿 

机构地区：[1]山东科技大学土木工程与建筑学院,山东青岛266590 [2]山东科技大学矿业与安全工程学院,山东青岛266590

出　　处：《煤炭技术》2016年第11期67-69,共3页Coal Technology

摘　　要：根据星村煤矿3302综放工作面的地质资料和开采技术,在几何比1∶100的条件下制作了3 m×0.3 m×1.8 m的相似模拟材料模型,在模型的正面不同层位共布设了8层位移基点,用电子经纬仪来观测岩体在开采过程中的位移变化情况;共布置6条间距200 mm的压力水平测线,通过压力传感器来监测覆岩的支承压力。实验室内相似材料模拟实现了对煤层开采过程中覆岩运动的全程观测。According to the geological data and mining technical conditions of 3302 fully mechanized caving face in Xingcun coal mine,similar simulation material for 3 m×0.3 m×1.8 m was made in the condition of geometry ratio 1：100. In the model, a total of 8 floor displacement points were set up in the front of the model and with the electronic theodolite to observe the changes in the process of mining, with the electronic theodolite to observe the changes in the process of mining and observe the changes in the process of mining using the electronic theodolite; setting a total of six pressure level measurement lines which keeping a distance of 200 ram,and monitoring the support pressure of the overlying rock through the pressure sensor. The simulation of similar materials in the laboratory can realize the whole process observation of the overlying strata movement in the process of coal seam mining.

关 键 词：大采高 相似模拟 覆岩运动 

分 类 号：TD325[矿业工程—矿井建设]