摘要
为研究不同的围岩条件如地质条件差、衬砌与围岩间回填不密实或未进行回填灌浆等对隧道衬砌应力的影响,分析了不同的围岩弹性抗力系数、侧向围岩压力对衬砌结构应力的影响情况。从而研究不同围岩条件下衬砌可能出现的各种力学现象,并对衬砌结构裂缝成因进行分析,得出衬砌结构的不利应力是其产生裂缝的主要原因之一。
To study the influence of different surrounding rock conditions, such as poor geological conditions, loose backfill between lining and surrounding rock, and no backfill grouting on tunnel lining stress, the influence of different elastic resistance coefficient of surrounding rock and lateral surrounding rock pressure on the stress of lining structure is analyzed. Thus, various possible mechanical phenomena of lining under different surrounding rock conditions are studied, and the causes of lining structure cracks are analyzed. It is concluded that the adverse stress of lining structure is one of the main causes of cracks.
作者
耿弈
张文博
唐刚
贺壮壮
GENG Yi;ZHANG Wenbo;TANG Gang;HE Zhuangzhuang(CCCC-SHB Fourh Engineering Co.Ld,Guangdong Shenchen 518107,China)
出处
《低温建筑技术》
2022年第6期150-153,共4页
Low Temperature Architecture Technology
关键词
衬砌结构
围岩弹性抗力
围岩压力
裂缝成因
lining structure
elastic resistance of surrounding rock
surrounding rock pressure
cause of crack
