摘要
为研究围岩与支护技术问题,对近十年来相关研究工作进行了系统分析,发现围岩与支护是相互作用、相互制约的一个复杂非线性系统。利用力学与非线性系统理论建立了围岩与支护系统的耗散结构模型,论述了围岩熵产生与支护熵流的相互关系。根据信息熵的原理建立了矿井支护可靠熵模型,并与结构可靠性进行对比分析。最后提出深部巷道断面优化设计,降低巷道底角的非线性应力集中状态,实际应用中使巷道底鼓量减少20%以上。
Aimed at surrounding rock and support technique,this paper offers a systematic overview of research work done in recent decade and suggests the discovery that the surrounding rock and the supports represent a complex nonlinear system subjected to the interaction and mutual constraints.The paper introduces the surrounding rock and the support system ＇ s dissipation structure model developed by using mechanical and the nonlinear system theory,and discusses the mutual relationship between the surrounding rock entropy ＇ s production and the support entropy flow.The paper features the mine support reliable entropy model according to the information entropy ＇ s theory,and offers a contrastive analysis of the structure reliability.The paper ends with the optimization design of the deep tunnel section in an effort to decrease the concentration state of nonlinear stress in tunnel base angle,with the resultant reduction of more than 20% in the quantity of tunnel floor heave.
出处
《黑龙江科技学院学报》
CAS
2010年第2期97-102,共6页
Journal of Heilongjiang Institute of Science and Technology
基金
黑龙江省科技攻关项目(GC05A307)
关键词
围岩与支护
耗散结构
可靠熵
非线性
surrounding rock and support
dissipation structure
reliable entropy
nonlinear
