西安科技大学学报2013，Vol.33Issue(2)：216-220,5.
巷道底鼓水平应力估算方法研究
Evaluation method of horizontal stress based on floor heave of roadway
摘要
Abstract
To provide scientific basis for roadway support design, through analyzing the mechanism of roadway floor heave, compression strut model for evaluating horizontal stress is set up. We can regard radius of plastic zone as the thickness of compression bar in this model. Through Euler formula, deduced the relationship between critical pressure and pressure. And then, reversed the pressure namely, horizontal stress. Substituted specific parameter of the level tunnel in Gubei Coal Mine into the relationship, and compared horizontal stress estimation result with field measurement, the difference is very small, which proves that the method is reasonable and useful for understanding the floor heave of roadway and checking the measured in-situ rock stress results.关键词
巷道底鼓/水平应力/压杆模型/估计方法Key words
floor heave/horizontal stress/compression strut model/estimation method分类
矿业与冶金引用本文复制引用
孙闯..巷道底鼓水平应力估算方法研究[J].西安科技大学学报,2013,33(2):216-220,5.基金项目
国家自然科学基金(51174078) （51174078）
河南理工大学博士基金(B2012-077) （B2012-077）
河南煤矿安全生产项目(H09-53) （H09-53）
