基于支护结构强度和变形综合优化的隧道支护理论与方法

上海交通大学学报（自然版） ›› 2013, Vol. 47 ›› Issue (09): 1435-1440.

基于支护结构强度和变形综合优化的隧道支护理论与方法

李科1，王颖轶2，黄醒春2

（1.招商局重庆交通科研设计院有限公司公路隧道建设技术国家工程实验室, 隧道建设与养护技术交通行业重点实验室，重庆 400067；2.上海交通大学海洋水下工程科学研究院，上海 200231）

收稿日期:2012-12-15 出版日期:2013-09-28 发布日期:2013-09-28
基金资助:
交通部西部交通建设科技项目(2009318000046)资助

Tunnel Supporting Theory and Method Based on Optimization of Supporting Structure Strength and Deformation

LI Ke1,WANG Yingyi2,HUANG Xingchun2

(1.National Engineering Laboratory for Highway Tunnel Construction Technology, Key Laboratory of Tunnel Construction and Maintenance Technology of the Communication Ministry, China Merchants Chongqing Communications Research and Design Institute Co. Ltd., Chongqing 400067, China; 2.Chinese Underwater Technology Institute, Shanghai Jiaotong University, Shanghai 200231, China)

Received:2012-12-15 Online:2013-09-28 Published:2013-09-28

摘要/Abstract

摘要：

针对新奥法在工程应用中的不足，分析了采用经典地压理论解决隧道工程支护问题的合理性与缺陷，提出了基于支护控制曲线、工程地质情况、监测数据的闭环式目标控制优化支护理论.通过有限元法分析不同应力释放率下支护结构应力与围岩变形的关系，利用支护应力与围岩变形控制条件确定目标控制位移，通过计算后续步段开挖对变形影响的修正控制位移，并结合实际工程的现场位移监测数据，最终确定合理的二次支护施作条件.通过工程实例，验证了该方法的正确性与实用性。

关键词: 隧道支护理论； , 围岩；变形；应力释放率；支护时间

Abstract:

The new Austrian tunneling method (NATM) is widely used in tunnel construction. Aimed at the deficiency of the secondary support time in NATM, the defect of classical ground pressure theory was analyzed, and a circular target optimization theory of tunnel support was proposed based on support control curve, engineering geology condition, and monitoring data. The support structure stress and surrounding rock deformation relation with different stress release rate were obtained by finite element method calculation. The target limited displacement was determined by considering support stress and surrounding rock deformation, and revised by the calculation of later excavation effect. The finial proper condition for secondary supporting was determined by considering the in-situ monitoring data. At last, this method was verified by engineering application.

Key words: tunnel supporting theory, surrounding rock, deformation, stress release rate, supporting time

中图分类号:

U 451.4

李科1，王颖轶2，黄醒春2. 基于支护结构强度和变形综合优化的隧道支护理论与方法[J]. 上海交通大学学报（自然版）, 2013, 47(09): 1435-1440.

LI Ke1,WANG Yingyi2,HUANG Xingchun2. Tunnel Supporting Theory and Method Based on Optimization of Supporting Structure Strength and Deformation[J]. Journal of Shanghai Jiaotong University, 2013, 47(09): 1435-1440.

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