Journal of Jilin University(Earth Science Edition) ›› 2018, Vol. 48 ›› Issue (6): 1797-1803.doi: 10.13278/j.cnki.jjuese.20170280

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Characteristic Analysis on Stress Ratio of Unsymmetrical Load Tunnel

Yu Qingyang, Liu Wei, Nie Lei, Dai Shulin   

  1. College of Construction Engineering, Jilin University, Changchun 130026, China
  • Received:2017-10-10 Published:2018-11-26
  • Supported by:
    Supported by Project of Jilin Transportation Science and Technology (2014-4-1-10-3)

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Abstract: Unsymmetrical load tunnel is a common type encountered in highway and railway construction. Because of its stress features, it is difficult to design and construct unsymmetrical load tunnel. Many researches focus mainly on stress distribution of unsymmetrical load tunnel, the causes of unsymmetrical load tunnel, surrounding rock stability, stress and strain distribution and construction affection etc. Seldom study focus on unsymmetrical load stress ratio and on conditions of unsymmetrical load stress ratio under the condition given of highway and railway design code. In this paper, based on the critical grade and coverage depth corresponding to the condition of the design code of double track railway tunnels, the stress ratios of the symmetrical position of the tunnel were calculated by means of numerical simulation. The results show that:under the premise of safety,when the stress ratio at arch shouldesr of grade Ⅲ surrounding rock is greater than 7.45,the stress ratio of grade Ⅳ(soil)surrounding rock is greater than 2.23,the stress ratio of grade Ⅳ(rock)surrounding rock is greater than 3.34,and the stress ratio of grade Ⅴ surrounding rock is greater than 1.06,the tunnel can be considered as an unsymmetrical load tunnel. The quantitative analysis results under the condition of railway tunnel design code provide a theoretical basis for the quantitative identification of the unsymmetrical load tunnel.

Key words: unsymmetrical load tunnel, unsymmetrical stress ratio, critical slope, overburden depth

CLC Number: 

  • TU457
[1] 张陵.净距变化时的大偏压隧道施工力学特性研究[J].湖南交通科技,2017,43(4):191-195. Zhang ling. Study on the Mechanical Characteristics of Large Bias Tunnel Construction with the Change of Net Distance[J].Hunan Communication Science and Technology,2017,43(4):191-195.
[2] 王吉亮,陈剑平,杨静,等. 距离判别法在公路隧道围岩分类中的应用[J].吉林大学学报(地球科学版),2008, 38(6):999-1004. Wang Jiliang, Chen Jianping, Yangjing,et al. Application of Distance Discriminant Method in Surrounding Rock Classification of Highway Tunnels[J]. Journal of Jilin University(Earth Science Edition), 2008,38(6):999-1004.
[3] 李永明,叶建忠,应础斌,等.公路偏压隧道围岩力学机理分析与工程应对措施[J].公路隧道,2015,23(1):14-18. Li Yongming, Ye Jianzhong, Ying Chubin, et al. Mechanical Mechanism Analysis of Highway Bias Tunnel Surrounding Rock and Engineering Measures[J]. Highway Tunnel, 2015,23(1):14-18.
[4] Wang F F, Jiang X L, Niu J Y. The Large-Scale Shaking Table Model Test of the Shallow-Bias Tunnel with a Small Clear Distance[J]. Geotechnical and Geological Engineering, 2017,35(3):1093-1110.
[5] 李欢,冯锡勇.浅埋偏压隧道施工力学分析[J].江西建材,2015,35(8):133. Li Huan, Feng Xiyong. Construction Mechanics Analysis of Shallow Buried Partial Pressure Tunnel[J]. Jiangxi Building Materials, 2015,35(8):133.
[6] Yang C F, Hwu J G. Tunable Negative Differential Resistance in MISIM Tunnel Diodes Structure with Concentric Circular Electrodes Controlled by Designed Substrate Bias[J]. IEEE Transactions on Electrondevices,2017,64(12):5230-5235.
[7] 安鹏程,陈剑平,邱道宏,等.偏压连拱隧道围岩稳定性分析与现场监控量测[J].吉林大学学报(地球科学版),2008,38(2):285-289. An Pengcheng, Chen Jianping, Qiu Daohong, et al. Stability Analysis and Field Monitoring Measurement of Surrounding Rock of Unsymmetrical Load Arch Tunnel[J]. Journal of Jilin University(Earth Science Edition), 2008,38(2):285-289.
[8] 谢小鱼.浅埋偏压大跨度隧道风险评估与围岩稳定性研究[D]. 湘潭:湖南科技大学,2014. Xie Xiaoyu. Study on Risk Assessment and Surrounding Rock Stability of Long Span Tunnel with Shallow Buried Bias[D]. Xiangtan:Hunan University of Science and Technology, 2014.
[9] 肖云华,王清,陈剑平,等.隧道围岩超欠挖与节理和洞轴线之间的关系[J].吉林大学学报(地球科学版),2008,38(3):455-459. Xiao Yunhua, Wang Qing, Chen Jianping, et al. Relationship Between over and Under Excavation of Tunnel Surrounding Rock and Axis of Joints and Holes[J]. Journal of Jilin University(Earth Science Edition), 2008,38(3):455-459.
[10] 程旭东,秦鹏举.浅埋偏压软岩隧道数值模拟及方案比选[J].低温建筑技术, 2010, 32(11):77-80. Cheng Xudong, Qin Pengju. Numerical Simulation and Comparison of Alternatives of Shallow Bias Soft Rock Tunnel[J].Cryogenic Building Technology, 2010,32(11):77-80.
[11] 王兵,谢锦昌.偏压隧道模型试验及可靠度分析[J].工程力学,1998,15(1):2243-2247. Wang Bing, Xie Jinchang. Model Test and Reliability Analysis of Unsymmetrical Loading Tunnel[J]. Engineering Mechanics, 1998,15(1):2243-2247.
[12] 姜勇,朱合华.岩石偏压隧道动态分析及相关研究[J].地下空间,2004,24(3):312-314. Jiang Yong, Zhu Hehua. Dynamic Analysis and Related Research of Rock Unsymmetrical Loading Tunnel[J]. Underground Space, 2004,24(3):312-314.
[13] 彭琦.浅埋偏压小净距隧道围岩压力及施工力学研究[D].湖南:中南大学,2008. Peng Qi. Study on Surrounding Rock Pressure and Construction Mechanics of the Shallow and Small Clear Distance Unsymmetrical Loading Tunnel[D].Hunan:Central South University, 2008.
[14] 张建.浅埋双侧偏压小净距隧道围岩压力及施工力学效应研究[D].重庆:重庆大学,2012. Zhang Jian. Study on Surrounding Rock Pressure and Construction Mechanical Effect of the Shallow Buried Bilateral and Small Clearance Unsymmetrical Loading Tunnel[D]. Chongqing:Chongqing University, 2012.
[15] 钟新樵.土质偏压隧道衬砌模型试验分析[J].西南交通大学学报, 1996, 43(6):28-32. Zhong Xinqiao. Lining Model Test Analysis of Soil Unsymmetrical Loading Tunnel[J]. Journal of Southwest Jiaotong University, 1996, 43(6):28-32.
[16] 姜汶泉,张运良,安永林,等.不同地形偏压与隧道受力变形的关系[J]. 郑州大学学报(工学版), 2008, 29(1):136-139. Jiang Wenquan, Zhang Yunliang, An Yonglin,et al. Relationshap of Different Terrain Bias and Stress and Deformation of the Tunnel[J]. Journal of Zhengzhou University(Engineering Edition), 2008,29(1):136-139.
[17] 刘小军,张永兴.地形因素及围岩类别对偏压隧道的影响效应分析[J].西安建筑科技大学学报(自然科学版), 2010, 54(2):205-210. Liu Xiaojun, Zhang Yongxing. Analysis of Influence of the Topographic Factors and Surrounding Rock Types on Unsymmetrical Loading Tunnel[J]. Journal of Xi'an University of Architecture and Technology(Natural Science Edition), 2010, 54(2):205-210.
[18] 王磊.地质偏压隧道围岩压力分布及衬砌安全性的分析[D].成都:西南交通大学,2008. Wang Lei. Surrounding Rock Pressure Distribution of Geological Bias Tunnel and Analysis of Lining Safety[D]. Chengdu:Southwest Jiaotong University, 2008.
[19] 铁路隧道设计规范TB 10003-2016[S].北京:中国铁道出版社,2016. Code for Design of Railway Tunnel TB 10003-2016[S].Beijing:China Railway Publishing House,2016.
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