摘要
针对连拱隧道围岩、结构整体受力和受力敏感分析不明确的问题,提出按岩体结构观点对连拱隧道围岩进行分类,即分成连续介质围岩、碎裂介质围岩、块裂介质围岩和板裂介质围岩。将碎裂介质围岩、块裂介质围岩和板裂介质围岩称为破碎围岩。建立破碎围岩的力学模型,求破碎围岩中连拱隧道荷载的理论解。
To solve the problem of acting forces on surrounding rock and the global structure in chain tunnel and the ambiguity of force sensitivity analysis, a surrounding rock classification method of chain tunnel is put forward from the point of view of surrounding rock structure, i.e. surrounding rock being divided into continuum surrounding rock, cracked surrounding rock, broken block surrounding rock and broken sheet surrounding rock. The last three kinds are called broken surrounding rock. Their related mechanical models are established and theoretical solutions to the calculation of chain tunnel load inside broken rock mass are obtained.
出处
《中国铁道科学》
EI
CAS
CSCD
北大核心
2004年第4期50-54,共5页
China Railway Science
基金
浙江省公路管理局科研项目(2002219)
关键词
连拱隧道
破碎围岩
力学模型
荷载计算
Calculations
Force control
Loads (forces)
Models
Rocks
Sensitivity analysis
