摘要
阐述了岩石强度极限邻域等岩石力学新概念,分析了岩石流变扰动效应机理,建立了岩石多次受到扰动后的累积变形量的本构方程,根据建立的本构方程,结合岩石流变及其扰动效应试验成果,建立了第三蠕变阶段横向扰动变形与扰动次数关系方程,结合典型软岩工程——龙口海域巷道实际地质资料,提出了围岩应力场峰值点转移判别标准,得出了当相邻巷道爆破施工时,爆破扰动导致的围岩应力场演变规律。
Two new concepts,limit neighbor of rock strength and perturbation effect of rock rheology were explained.Besides,the rock rheology perturbation effect mechanism was analyzed.And the constitutive equation of accumulated deformation disturbed by the rock was founded.According to the equation,integrated with the rock rheology and disturbed effects test results,the equation of the third lateral perturbation deformation and perturbation times was established.In addition,combining with the geological data of Longkou sea area tunnel which is a typical soft rock project,the peak shifting identification standard was proposed in surrounding stress field.Moreover,the surrounding rock stress field evolution law was concluded when the blasting construction was operated in the next runnel.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2010年第9期1446-1450,共5页
Journal of China Coal Society
基金
国家重点基础研究发展计划(973)项目(2007CB209400)
天地科技发展技术创新基金(TZ-JJ-09-HT-1
TZ-JJ-2010-HT-2)
关键词
岩石流变
扰动效应
应力场演变
深井软岩
rock rheology
disturbed effects
stress field evolution
poor rock mass in deep mine
