摘要
根据某矿开采技术条件和岩石力学性能等参数,建立力学模型,运用RFPA2D数值模拟软件进行覆岩导水裂隙带高度预测,用经验公式对覆岩导水裂隙带高度进行了估算。在采空工作面进行实测导水裂隙带高度。结果表明RFPA2D数值模拟所得到的导水裂隙带高度与现场测定结果基本接近,考虑预测偏差率后可以作为煤层冒裂带发育的高度进行矿井防治水的依据。
We build mechanics models that are based on the parameter of mining technology conditions and rock mechanics property in a mine and use RFPA^2D numerical simulation software to forecast the height of overlying rock’water-flowing fractured zone and use empirical formula to estimate the height and measure actually the height of cavity’working face.We compare the numerical simulation’s height using RFPA^2D software and the actual measurement’s height,the result demonstrates that they are mostly equal.So the numerical simulation’s result can be the basis to carry out the mine water prevention and control,but we must consider the forecast deviation ratio.
出处
《河北工程大学学报（自然科学版）》
CAS
2013年第2期76-79,83,共5页
Journal of Hebei University of Engineering:Natural Science Edition
关键词
煤层开采
导水裂隙带
数值模拟
seam mining
water-flowing fractured zone
numerical simulation
