隧道围岩构造软岩大变形发生机理及分级方法

张广泽; 邓建辉; 王栋; 张茹; 徐正宣; 张志龙; 冯君; 任利; 贾哲强

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DOI:10.15961/j.jsuese.202000533

工程科学与技术:2021,53(1):1-12

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隧道围岩构造软岩大变形发生机理及分级方法

张广泽¹, 邓建辉^2,3, 王栋^1,2,3, 张茹^2,3, 徐正宣¹, 张志龙^2,3, 冯君¹, 任利^2,4, 贾哲强^1,2,3

(1.中铁二院工程集团有限责任公司，四川成都 610031;2.四川大学深地科学与工程教育部重点实验室，四川成都 610065;3.四川大学水利水电学院，四川成都 610065;4.四川大学建筑与环境学院，四川成都 610065)

Mechanism and Classification of Tectonic-induced Large Deformation of Soft Rock Tunnels

ZHANG Guangze¹, DENG Jianhui^2,3, WANG Dong^1,2,3, ZHANG Ru^2,3, XU Zhengxuan¹, ZHANG Zhilong^2,3, FENG Jun¹, REN Li^2,4, JIA Zheqiang^1,2,3

(1.China Railway Eryuan Eng. Group Co. Ltd., Chengdu 610031, China;2.Key Lab. of Deep Underground Sci. and Eng. for Ministry of Education, Sichuan Univ., Chengdu 610065, China;3.College of Water Resources & Hydropower, Sichuan Univ., Chengdu 610065, China;4.College of Architecture and Environment, Sichuan Univ., Chengdu 610065, China)

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投稿时间：2020-06-29 修订日期：2020-12-02

中文摘要: 通过系统分析国内外隧道围岩大变形案例，发现应力场、地质构造、地层岩性等因素是驱动隧道围岩大变形孕育发生的根本条件，并严格受构造控制，进而提出构造软岩大变形的基本概念；根据大变形的构造控制理念与发生机理，对隧道构造软岩大变形分类进行了重新界定（断层型、碎裂型和小夹角型）。以岩石强度应力比为基础，突出构造运动影响，量化考虑地层时代、优势结构面产状、岩石强度、岩层厚度、岩体完整性5个影响因素，提出适用于不同地质勘察阶段的隧道围岩大变形分级方法。利用垭口隧道、盐边隧道、新林隧道等18个隧道围岩大变形案例，对本文提出的构造软岩大变形分级方法进行系统验证，表明本文提出的分级方法具有较好的适用性。研究成果对隧道围岩大变形发生机理认识、大变形灾害判识与控制均具有重要指导意义。

中文关键词: 围岩大变形构造软岩大变形大变形分类大变形分级

Abstract:Based on the analysis of large deformation cases of tunnel surrounding rock both at home and abroad, the present study found that the factors such as in-situ stress, geological structure and formation lithology are the basic conditions for the occurrence of large deformation of tunnel surrounding rock. Then, a concept of tectonic-induced large deformation of soft rock was proposed. According to the concept and mechanism of tectonic-controlled large deformation of tunnel surrounding rock mass, the classification of large deformation of soft rock in tunnel was redefined (fault type, fragmentation type and small angle type). Based on the ratio of rock strength and in situ stress, emphasizing the influence of structural movement, and considering five factors including stratum age, occurrence of dominant structural plane, rock strength, rock strata thickness and rock mass integrity, a new grading method for large deformation of tunnel surrounding rock in different geological exploration stages was proposed. The new grading method for tectonic-induced large deformation of tunnel surrounding rock mass proposed in this paper was systematically verified by employing 18 large deformation cases of Yakou tunnel, Yanbian tunnel, Xinlin tunnel and so on. Results demonstrated that the grading method proposed in the present study is reliable. The research results are of great importance for the understanding of the large deformation mechanism as well as the identification and control of large deformation disasters of tunnel surrounding rock mass.

keywords: large deformation of surrounding rock large deformation of structural soft rock patterns of large deformation classification of large deformation

文章编号：202000533 中图分类号：U25 文献标志码：

基金项目:四川省重点研发计划项目（2019YFG0047）；中铁二院工程集团有限责任公司科研项目（科2019-093-1）

作者	单位	E-mail
张广泽	中铁二院工程集团有限责任公司，四川成都 610031	252897727@qq.com
邓建辉	四川大学深地科学与工程教育部重点实验室，四川成都 610065 四川大学水利水电学院，四川成都 610065	jhdeng@scu.edu.cn
王栋	中铁二院工程集团有限责任公司，四川成都 610031 四川大学深地科学与工程教育部重点实验室，四川成都 610065 四川大学水利水电学院，四川成都 610065
张茹	四川大学深地科学与工程教育部重点实验室，四川成都 610065 四川大学水利水电学院，四川成都 610065
徐正宣	中铁二院工程集团有限责任公司，四川成都 610031
张志龙	四川大学深地科学与工程教育部重点实验室，四川成都 610065 四川大学水利水电学院，四川成都 610065
冯君	中铁二院工程集团有限责任公司，四川成都 610031
任利	四川大学深地科学与工程教育部重点实验室，四川成都 610065 四川大学建筑与环境学院，四川成都 610065
贾哲强	中铁二院工程集团有限责任公司，四川成都 610031 四川大学深地科学与工程教育部重点实验室，四川成都 610065 四川大学水利水电学院，四川成都 610065

Author Name	Affiliation	E-mail
ZHANG Guangze	China Railway Eryuan Eng. Group Co. Ltd., Chengdu 610031, China	252897727@qq.com
DENG Jianhui	Key Lab. of Deep Underground Sci. and Eng. for Ministry of Education, Sichuan Univ., Chengdu 610065, China College of Water Resources & Hydropower, Sichuan Univ., Chengdu 610065, China	jhdeng@scu.edu.cn
WANG Dong	China Railway Eryuan Eng. Group Co. Ltd., Chengdu 610031, China Key Lab. of Deep Underground Sci. and Eng. for Ministry of Education, Sichuan Univ., Chengdu 610065, China College of Water Resources & Hydropower, Sichuan Univ., Chengdu 610065, China
ZHANG Ru	Key Lab. of Deep Underground Sci. and Eng. for Ministry of Education, Sichuan Univ., Chengdu 610065, China College of Water Resources & Hydropower, Sichuan Univ., Chengdu 610065, China
XU Zhengxuan	China Railway Eryuan Eng. Group Co. Ltd., Chengdu 610031, China
ZHANG Zhilong	Key Lab. of Deep Underground Sci. and Eng. for Ministry of Education, Sichuan Univ., Chengdu 610065, China College of Water Resources & Hydropower, Sichuan Univ., Chengdu 610065, China
FENG Jun	China Railway Eryuan Eng. Group Co. Ltd., Chengdu 610031, China
REN Li	Key Lab. of Deep Underground Sci. and Eng. for Ministry of Education, Sichuan Univ., Chengdu 610065, China College of Architecture and Environment, Sichuan Univ., Chengdu 610065, China
JIA Zheqiang	China Railway Eryuan Eng. Group Co. Ltd., Chengdu 610031, China Key Lab. of Deep Underground Sci. and Eng. for Ministry of Education, Sichuan Univ., Chengdu 610065, China College of Water Resources & Hydropower, Sichuan Univ., Chengdu 610065, China

作者简介:第一作者:张广泽(1968-),男,教授级高级工程师.研究方向:工程地质.E-mail:252897727@qq.com;通信作者:邓建辉,E-mail:jhdeng@scu.edu.cn
引用文本：
张广泽,邓建辉,王栋,张茹,徐正宣,张志龙,冯君,任利,贾哲强.隧道围岩构造软岩大变形发生机理及分级方法[J].工程科学与技术,2021,53(1):1-12.
ZHANG Guangze,DENG Jianhui,WANG Dong,ZHANG Ru,XU Zhengxuan,ZHANG Zhilong,FENG Jun,REN Li,JIA Zheqiang.Mechanism and Classification of Tectonic-induced Large Deformation of Soft Rock Tunnels[J].Advanced Engineering Sciences,2021,53(1):1-12.