浅埋煤层开采的大比例立体模拟研究

通过模型因次分析，介绍了为研究神府矿区浅埋深、薄基岩、厚沙覆盖层下开采岩层破断运动规律而进行的大型立体模拟实验。分析和对比了立体模型、平面模型实验结果与现场观测结果，指出该模型反映了采场三维应力状态，达到定量研究的目的，实验结果相近，误差在１６．７％左右。

STUDY ON LARGE SCALE STEREO SCOPIC SIMULATION FOR SHALLOW SEAM MINING

By the model dimensional analysis, large scale stereoscopic simulation test is introduced which is used to research the fracture and movement law of excavated rock strata under the mining condition of shallow seam,thin bedrock and thick sand overburden in Shenfu mining area. Test results of stereoscopic model and plane model with results of the field observation is also analyzed and compared,indecates that stereoscopic model can accurately reflect three dimensional stress state in coal face,and reaches the aim of the quantitative research.Test results are similar to results of the field observation, error is about 16 7%.