| 深埋隧道围岩-支护结构稳定性研究 |
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| 引用本文： | 靳晓光,李晓红,杨春和,张宪鑫. 深埋隧道围岩-支护结构稳定性研究[J]. 岩土力学, 2005, 26(9): 1473-1476 |
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| 作者姓名： | 靳晓光 李晓红 杨春和 张宪鑫 |
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| 作者单位： | 1. 重庆大学 土木工程学院，重庆 400030；2. 重庆大学 西南资源开发及环境灾害控制工程教育部重点实验室，重庆 400030； 3. 中国科学院岩土力学重点实验室，武汉 430071 |
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| 基金项目： | 国家自然科学基金重点项目(No.50334060)。 |
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| 摘 要： | 依据隧址区工程地质特征，建立通-渝深埋公路隧道1:1实体模型。通过有限元数值模拟，结合量测资料，分析了隧道按全断面法和台阶法动态施工过程围岩-支护结构屈服接近度、位移和应力特征，以及支护结构钢支撑受力、二次衬砌轴力和弯矩特征。结果表明，在相同的地质条件和支护条件下，台阶法较全断面法没有明显的优势，为深埋公路隧道优化设计和施工提供了科学依据。
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| 关 键 词： | 深埋隧道 围岩-支护结构（SRSS） 位移 应力 数值模拟 |
| 文章编号： | 1000-7598-（2005）09-1473-04 |
| 收稿时间： | 2004-12-10 |
| 修稿时间： | 2005-03-01 |
Stability of surrounding rock-supports structure of deep buried tunnel |
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| JIN Xiao-guang,LI Xiao-hong,YANG Chun-he,ZHANG Xian-xin. Stability of surrounding rock-supports structure of deep buried tunnel[J]. Rock and Soil Mechanics, 2005, 26(9): 1473-1476 |
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| Authors: | JIN Xiao-guang LI Xiao-hong YANG Chun-he ZHANG Xian-xin |
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| Affiliation: | 1.College of Civil Engineering, Chongqing University, Chongqing 400030, China; 2. Key Lab. for the Exploitation of Southwestern Resources & the Environmental Disaster Control Engineering, Ministry of Education, Chonqing University, Chongqing 400030, China; 3. Key Laboratory of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
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| Abstract: | Based on engineering geological features of tunnel setting, a1:1 hypostatic model of Tong-Yu deep buried highway tunnel is built. Combined measuring results, characteristics of yield degree, displacement, stress of surrounding rock-supports structure, as well as steel support force and lining axis force and bending moment of supports structure are analysed when the tunnel adopting full face method and bench method dynamic excavation. The analytical results show that the bench method there isn’t obvious advantage than full face method. The study provides a scientific basis for optimizing design and construction of deep buried highway tunnels. |
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| Keywords: | deep buried tunnel surrounding rock-supports structure (SRSS) displacement stress numerical modeling |
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