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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

第9卷    第5期    总第49期    2012年10月

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文章编号:1672-7029( 2012) 05-0065-06
偏压隧道的进洞施工扰动效应及安全监控
袁维1,傅鹤林1,徐武1,2,陈政希3

(1.中南大学土木工程学院,湖南长沙410075; 2.江西理工大学,江西赣州341000;
3.湖南城市学院,湖南益阳413000
)

摘 要: 利用数值分析方法,针对某公路隧道进洞偏压段施工过程进行模拟计算,探究了隧道开挖引起的围岩变形规律及初期支护结构受力特性。结合现场监控量测技术,通过对比分析围岩变形数据,动态地掌握隧道施工过程,为围岩类别调整、初期支护和二次衬砌设计参数的调整提供了依据。

 

关键字: 偏压隧道; 数值模拟; 进洞施工; 监控量测

Disturbance effect of unsymmetrical pressure tunnel’s entrance construction and safety monitoring
YUAN Wei1,FU He-lin1,XU Wu1,2,CHEN Zheng-xi3

1.School of Civil Engineering,Central South University,Changsha 410075 China;
2.Jiangxi University of Science and Technology,Ganzhou 341000 China;
3.Hunan City University,Yiyang 413000,China

Abstract:The construction process of the road tunnel was numerically calculated in the method of numerical analysis,and the resulting surrounding rock deformation laws and early supporting structure stress characteristics were studied.Combined with in-situ monitoring technology,and compared with surrounding rock’s deformation data,the process of tunnel construction was mastered dynamically,which provides the basis for surrounding rock''''s classification adjustment,design parameters’adjustment of early supporting structure and secondary lining structure.

 

Key words: unsymmetrical pressure tunnel; numerical analysis; entrance construction; monitoring and measurement

ISSN 1672-7029
CN 43-1423/U

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