Bearing characteristics of coal pillars based on modified limit equilibrium theory

来源 :矿业科学技术学报：英文版 | 被引量 : 0次 | 上传用户：hdjc1314

【摘要】

：

There are two states for the coal-mass on the goaf-side which is in stress equilibrium: the state of limit equilibrium(the bearing stress in the coal-mass equal

【作者】

：

Wang Xiangyu Bai Jianbiao Wang

【机构】

：

SchoolofMines,StateKeyLaboratoryofCoalResourcesandMineSafety

【出处】

：

矿业科学技术学报：英文版

【发表日期】

：

2015年6期

【关键词】

：

极限平衡理论保护煤柱支承特性极限平衡状态极限承载力极限平衡区宽度修正应力集中系数 Coal bearingZone of non-ultimate

【基金项目】

：

This work is supported by the National Programs for Fundamental Research and Development （No. 2013CB227900）, the National Natural Science Foundation of China （Nos. 51204166, 51174195 and 51474209）, an

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论文部分内容阅读

There are two states for the coal-mass on the goaf-side which is in stress equilibrium: the state of limit equilibrium(the bearing stress in the coal-mass equals its ultimate bearing stress) and the state of nonultimate equilibrium(the bearing stress in t

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Bearing characteristics of coal pillars based on modified limit equilibrium theory

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