基于推移式滑坡的隧道变形模式演化规律研究

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Abstract Research purposes: With the rapid development of land transportation in China, the problem of tunnel diseases caused by landslides has become increasingly prominent in mountainous areas. The most fundamental cause of tunnel deformation and destruction is the change of tunnel stress mode caused by landslides. At the same time, the different deformation stages of the slope have great influence on the mechanical deformation mode of the tunnel structure, and there is a lack of in-depth research in this area at present.
Research conclusions:(1) Taking the tunnel-landslide parallel system as the research object, based on the deformation characteristics of the rock and soil mass of the sliding landslide, it is revealed that the essence of progressive failure process of tunnel is the process of landslide thrust and rock and soil resistance change. The movement characteristics of landslide in different evolution stages and the mechanical characteristics of tunnel are preliminarily discussed. Based on the stress mode of tunnel in different evolution stages, the models of semi-infinite long beam and semi-infinite long beam-cantilever beam are established. (2) Based on the theory of elastic foundation beam and structural mechanics, the deformation of tunnel structure in and out of the landslide is analyzed by coupling method. The theoretical calculation formulas of stress and deformation modes of tunnels in different stages are established, and the analytical expressions of corresponding control sections are put forward, which can realize the evaluation of stress and deformation of tunnels in different stages of landslide evolution. (3) A comparative analysis and verification are carried out through model tests. The results show that the theory can predict the development of the stress and deformation of the tunnel in landslide, and provide theoretical reference for the design and reinforcement of the tunnel in landslide area.

Key words： tunnel-landslide parallel system deformation model evolution process semi-infinite beam model semi-infinite beam-cantilever beam model

Received: 30 July 2021

PACS:

RU452.27

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	Articles by authors
	ZHAO Jin
	WEN Lina
	WU Honggang

Cite this article:

ZHAO Jin,WEN Lina,WU Honggang. Research on the Evolution Law of Tunnel Deformation Mode Based on Push Type Landslide[J]. Journal of Railway Engineering Society, 2023, 40(1): 53-61.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2023/V40/I1/53

[1]	马惠民.坡体病害与隧道变形问题[J].岩石力学与工程学报,2003(S2):2719-2724.Ma Huimin. Discussion on Problems of Slope Disaster and Tunnel Deformation [J]. Chinese Journal of Rock Mechanics and Engineering, 2003(S2):2719-2724.
[2]	吴红刚. 隧道—滑坡体系的变形机理及控制技术研究[D].北京:中国铁道科学研究院,2012.Wu Honggang.Research on Deformation Mechanism and Control Technology of Tunnel-Landslide System[D].Beijing:Chinese Academy of Railway Sciences,2012.
[3]	毛坚强, 周德培. 滑坡—隧道相互作用受力变形规律的研究[J]. 西南交通大学学报, 2002(4):371-376.Mao Jianqiang, Zhou Depei. Deformation Analysis for Landslide-Tunnel Interaction [J]. Journal of Southwest Jiaotong University, 2002(4):371-376.
[4]	Bandini A,Berry P,Boldini D. Tunnelling-induced Landslides:The Val di Sambro Tunnel Case Study[J]. Engineering Geology,2015,196:71-87.
[5]	刘天翔,王忠福.隧道正交穿越深厚滑坡体的相互影响分析与应对措施[J].岩土力学,2018(1):265-274.Liu Tianxiang, Wang Zhongfu. Analysis of Interaction when Tunnel Orthogonal Crossing Deep-seated Landslide and the Corresponding Control Measures[J]. Rock and Soil Mechanics, 2018(1):265-274.
[6]	赵金,吴红刚,刘德仁,等.滑坡内隧道变形模式与荷载计算方法[J].中国地质灾害与防治学报,2019(1):112-118.Zhao Jin, Wu Honggang, Liu Deren,etc. Deformation Model of the Tunnels within Landslides and Methods for Loading Caculation[J]. The Chinese Journal of Geological Hazard and Control, 2019(1): 112-118.
[7]	吴红刚,赵金,李玉瑞, 等.隧道下穿滑坡附加荷载计算方法研究[J].岩石力学与工程学报,2018(S2):4375-4383.Wu Honggang, Zhao Jin, Li Yurui,etc. Study on Calculation Method of Additional Load of Tunnel under Landslide[J]. Chinese Journal of Rock Mechanics and Engineering, 2018(S2): 4375-4383.
[8]	秦睿, 陈小云. 隧道-滑坡体系应力变形机理模型试验研究[J]. 科学技术与工程, 2017(29):363-367.Qin Rui, Chen Xiaoyun. Experimental Research on Stress and Strain Mechanism of Tunnel-land System[J]. Science Technology and Engineering, 2017(29):363-367.
[9]	谭福林. 基于不同演化模式的滑坡—抗滑桩体系动态稳定性评价方法研究[D].武汉:中国地质大学,2018.Tan Fulin. Evaluation Method for Dynamic Stability of Landslide Stabilizing Pile System with Different Evolution Modes [D].Wuhan:China University of Geosciences, 2018.
[10]	卢应发,黄学斌,刘德富.推移式滑坡渐进破坏机制及稳定性分析[J].岩石力学与工程学报,2016(2):333-345.Lu Yingfa, Huang Xuebin, Liu Defu. Mechanism and Stability Analyses of Progressive Failure of Thrust-type Landslides[J]. Chinese Journal of Rock Mechanics and Engineering,2016(2):333-345.
[11]	赵金,文丽娜,吴红刚,等.隧道-洞口滑坡平行体系受力变形模式与计算方法研究[J].现代隧道技术,2022(2):1-10.Zhao Jin,Wen Lina,Wu Honggang,etc. Study on Modes and Calculation Method of Stress and Deformation of Tunnel-portal Landslide Parallel System[J]. Modern Tunnelling Technology,2022(2):1-10.
[12]	龙驭球.弹性地基梁的计算[M].北京:高等教育出版社,1989.Long Yuqiu. Calculation of Beams on Elastic Foundation [M]. Beijing: Higher Education Press, 1989.