摘要
分析鹤壁六矿－３００ｍ水平实测地应力分布特点，采用位移不连续数值方法及基于有限实测点的逐次逼近计算方法模拟工程区域的岩体初始应力场。通过对水平面内的次主应力分布特征的分析，探讨复杂断裂构造对区域岩体初始应力状态的影响，并通过对该工程区域内矿压显现特征与原岩应力分布特征的对比，定性分析断层构造对巷道稳定及煤和瓦斯突出的影响。结果表明：复合断层的叠加扰动影响造成原岩应力状态的区域性非均匀分布特征，从而使该矿煤和瓦斯突出及巷道的稳定性具有明显的区域差异。
Based on the analysis of distribution characteristics of initial rock stress observed at -300 m level of No.6 colliery of Hebi, the regionalinitial rock stress field is simulated by applying displacement discontinuity method and iteration calculating method. The influence of complex faults on the initial rock stress status is inquired through analyzing the distribution characteristics of maximum and minimum horizontal stresses. In addition, influence of faults on the stability of underground opening and gas extrusive is discussed by comparing the regional characteristics of ground pressure with ones of initial rock stress. It is shown that regional distribution characteristics of stress field depends upon the superposition of complex faults. And then, it causes notable regional difference of stability of underground openings and gas sudden extrusive.
出处
《矿冶工程》
CAS
CSCD
北大核心
1999年第2期20-23,共4页
Mining and Metallurgical Engineering
基金
国家教委回国留学人员资助
关键词
原位实测
原岩应力场
矿压显现特征
数值模拟
insuit measurement
initial rock stress field
displacement discontinuity method
behaviors of ground pressure
