摘要
基于以围岩出现一定塑性松动区时对变形作为标准的围岩稳定性评判新思路,根据芬纳公式和修正的芬纳公式建立能够综合反映地下洞室围岩变形模量、强度参数以及洞室埋深的围岩稳定性评价指标分析方法,并与经验方法、规范推荐方法进行对比分析。该评判方法在西安市黑河引水工程和四川紫坪铺水利枢纽工程中的成功应用,表明该评判方法较经验方法、规范推荐方法更为科学、可靠,更具有可操作性与实用性。
The experimental method widely used to judge the stability of tunnel is unable to consider the rock deformation properties, size and overburden; the Chinese Code only supply a wide range of the critical deformation, which is very difficulty to be used in the tunneling practice. A new method based on the elastoplastic solution is proposed to judge the stability of tunnel with consideration of rock deformation properties, strength property, tunnel size and tunnel overburden. Applications of this new method to some tunnel projects show very good correlations with measurements.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2006年第9期1941-1944,共4页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金资助项目(50479023)
