煤岩动力系统失稳机理

为了计算不同冲击危险程度煤岩体的具体影响尺度,实现煤矿冲击地压的针对性预防和治理,提出了＂煤岩动力系统＂的概念,构建了＂煤岩动力系统与冲击地压显现关系＂模型。基于爆破理论和Mises屈服强度准则,提出了＂煤岩动力系统＂各区域尺度计算方法并建立了相应的评价指标体系。根据煤矿已发生冲击地压和＂高能量＂微震事件的震源位置和能量值,确定煤岩动力系统＂动力核区＂、＂破坏区＂、＂损伤区＂和＂影响区＂等各区域尺度的具体影响范围,判断不同尺度范围内煤岩体的冲击危险程度。将煤岩动力系统各区域尺度计算方法在老虎台煤矿进行了准确性验证,表明该方法具有较高的可信度和实用性,可以广泛应用在矿井冲击地压的预测与危险性评价...

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Bibliographic Details
Published in煤炭学报 Vol. 42; no. 7; pp. 1663 - 1671
Main Author 荣海 张宏伟 梁冰 韩军 王雅迪
Format Journal Article
LanguageChinese
Published 2017
Subjects
冲击地压
准确性验证
区域尺度
危险性评价
微震能量
煤岩动力系统
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Summary:为了计算不同冲击危险程度煤岩体的具体影响尺度,实现煤矿冲击地压的针对性预防和治理,提出了＂煤岩动力系统＂的概念,构建了＂煤岩动力系统与冲击地压显现关系＂模型。基于爆破理论和Mises屈服强度准则,提出了＂煤岩动力系统＂各区域尺度计算方法并建立了相应的评价指标体系。根据煤矿已发生冲击地压和＂高能量＂微震事件的震源位置和能量值,确定煤岩动力系统＂动力核区＂、＂破坏区＂、＂损伤区＂和＂影响区＂等各区域尺度的具体影响范围,判断不同尺度范围内煤岩体的冲击危险程度。将煤岩动力系统各区域尺度计算方法在老虎台煤矿进行了准确性验证,表明该方法具有较高的可信度和实用性,可以广泛应用在矿井冲击地压的预测与危险性评价工作中。
Bibliography:RONG Hai1,2, ZHANG Hong-wei1,4, LIANG Bing2,4, HAN Jun1,4, WANG Ya-di3（ 1. College of Mining, Liaoning Technical University, Fuxin 123000, China; 2. School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China ; 3. College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China ; 4. Resarch Center of Coal Resources Safe Mining and Clean Utilization, Liaoning Technical University, Fuxin 123000, China）
rockburst;dynamic system of coal and rock;microseismic energy;regional scale;risk assessment;accuracy validated
In order to calculate the concrete scale range of coal and rock mass in different rockburst danger degrees,and prevent and control rockburst in coal mine,the concept of dynamic system of coal and rock is put forward in this paper.The model of the relationship between the occurrence of rockburst and dynamic system is built at the same time.The calculation method of dynamic system scale and its evaluation system and quantitative indicators are put for
ISSN:0253-9993