摘要
应力在块裂介质中的传递规律与在连续介质中的传递规律不同。研究了属于块裂介质的块体结构岩体中自重应力传递所遵循的法则。研究结果表明,岩体中的应力大小受岩块数量以及岩块的几何参数控制。将研究结果应用在煤炭地下开采中的采场基本顶结构载荷计算中,为岩层控制研究领域块体结构岩层的应力分布计算和岩层结构的载荷确定提供了新的理论依据。
In underground coal mining,fractured zone is composed by blocky rockmasses. The transmission law of stress in the blocky media is different from that in continuous media. In this paper,the principle of gravitational stress transmission in blocky rockmass is researched. The outcomes of research make it clear that the number and geometry of rock block control the stress values. The research results are applied to load calculation of basic roof structure in underground mining combined with the pressure arch theory.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第10期1720-1723,共4页
Chinese Journal of Rock Mechanics and Engineering
基金
山西省留学回国人员科研基金(98-41)资助项目
关键词
采矿工程
块体结构
应力传递
裂隙带
结构载荷
基本顶
mining engineering,block structure,stress transmission,fracture zone,basic roof
