摘要
为了掌握黄土隧道施工过程对围岩松动区内力和位移变化的影响,在天定高速定西黄土隧道施工时,在围岩松动区内埋设了锚杆轴力计、单点位移计和土压力盒,以测得的数据为基础,并结合现场施工状况,对黄土隧道施工各阶段围岩松动区内力和位移变化规律进行了分析和总结。根据所得的变化规律对隧道的后期施工措施进行了相应的调整,这些规律对同类黄土隧道具有指导作用和借鉴意义。
In order to have a profound understand of the internal force and deformation rules in loose areas of the loess tunnel caused by the construction process of tunnel,some axial force meter of bolts,single-point displacement transducer and embedded earth pressure cells were embedded into the loose areas during the Tian-Ding freeway tunnel construction,which lie in the Dingxi city of Gansu Province,China.Based on the measured data,combining with the on-the-spot construction state,the internal force and surrounding rock displacement change rules at loosed loess area are analyzed and summarized.According to these rules,the later construction of the tunnel have carried some corresponding adjust and achieved satisfactory result.The results also have an important guidance for the design and construction of similar loess tunnel.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2009年第S2期273-276,共4页
Rock and Soil Mechanics
基金
陕西省自然科学基础研究计划项目(No.2009JM7005)
陕西省重点学科建设专项资金资助
西安建筑科技大学基础研究项目(No.JC0607)
人才科技基金项目(No.RC0708)
关键词
黄土隧道
内力
位移
变形规律
loess tunnel
internal forces
displacement
deformation rules.
