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浙江大学学报(工学版)
J4  2011, Vol. 45 Issue (7): 1314-1318    DOI: 10.3785/j.issn.1008-973X.2011.07.029
    
Selection criteria for lining structure type of pressure tunnel
HU Yun-jin1,ZHONG Zhen1,HUANG Dong-jun2,FENG Shi-neng2
1. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China;
2. Institute of Water Works, East China Investigation and Design Institute, Hangzhou 310014, China
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Abstract  

The inner water exosmosis analysis of pressure tunnel under a series of cases was conducted by using the seepage-stress-crack coupling numerical model in order to propose selection criteria for the lining structure type of pressure tunnel in view of permeability. The comprehensive water permeability of pressure tunnel under different cases and different inner water pressure values was obtained. Relationships between inner water pressure and comprehensive permeability index were established by using the comprehensive water permeability as the seepage failure standard of pressure tunnel. The relationship curves between inner water pressure and comprehensive permeability index for different allowed Lugeon values were fitted out. The curves can be taken as the boundaries among shotcrete-bolt, reinforced concrete and steel lining. Results show that reinforced concrete or steel lining is needed for the tunnel when the rock comprehensive permeability index is less than 25; no lining is needed for tunnel of low-head power plants when the rock comprehensive permeability index is large．

Published: 01 July 2011
CLC:  TV 554  
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Cite this article:

HU Yun-jin,ZHONG Zhen,HUANG Dong-jun,FENG Shi-neng. Selection criteria for lining structure type of pressure tunnel. J4, 2011, 45(7): 1314-1318.

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https://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2011.07.029     OR     https://www.zjujournals.com/eng/Y2011/V45/I7/1314


压力隧洞衬砌结构型式选择准则

为了从渗透角度给出压力隧洞衬砌结构型式的选择准则,采用渗流-应力-开裂耦合分析模型,进行一系列组合工况下的压力隧洞内水外渗分析,计算得到在不同工况下不同内水压力时的压力隧洞综合透水率.以综合透水率作为判断隧洞是否渗透破坏的标准,建立破坏内水压力与围岩综合抗渗指标的关系,拟合出不同容许吕荣值对应的破坏内水压力与围岩综合抗渗指标的关系曲线,作为钢筋混凝土衬砌与钢板衬砌以及不衬砌与钢筋混凝土衬砌的分界线.研究结果表明,当围岩综合抗渗指标<25时,必须采用钢筋混凝土或钢板衬砌；当围岩综合抗渗指标较大时,对低水头电站压力隧洞可不衬砌.

［1］ 奥罗克T D. 隧道衬砌设计指南［M］. 北京：中国铁道出版社,1987:109-117．
［2］ DL/T51952004,水工隧洞设计规范［S］. 北京：中国水利水电出版社,2003:33-34．
［3］ 张巍,黄立财. 基于渗流场与应力场耦合的高压隧洞设计［J］. 水利与建筑学报,2007,5(2): 41-44．
ZHANG Wei, HUANG Licai. Design of tunnel with high pressure water based on coupling of seepage field and stress field ［J］. Journal of Water Resources and Architectural Engineering, 2007, 5(2): 41-44．
［4］ 李新星,蔡永昌,庄晓莹,等. 高压引水隧洞衬砌的透水设计研究［J］. 岩土力学,2009, 30(5): 1404-1408．
LI Xinxing, CAI Yongchang, ZHUANG Xiaoying, et al. Design of permeable lining for high pressure hydraulic tunnel ［J］. Rock and Soil Mechanics, 2009, 30(5): 1404-1408．
［5］ ODA M T, TAKEMURA A, AOKI T. Damage growth and permeability change in triaxial compression tests of India granite ［J］. Mechanics of Materials, 2002, 34(2): 313-331．
［6］ LOUIS C. Suggested methods for determining hydraulic parameters and characteristics of rock masses ［M］. Berlin: Springer, 1977: 57-62．
［7］ CORNET F H, MORIN R H. Evaluation of hydromechanical coupling in a granite rock mass from a highvolume highpressure injection experiment:Le Mayet de Montagne,France ［J］. International Journal of Rock Mechanics Mining Science and Geomechanics, 1997, 34(4): 427-441．
［8］ 翦波. 裂隙岩体高压压水试验研究［J］. 西部探矿工程,2008（11）：28-32．
JIAN Bo. Pressure water test of fractured rock mass under high water pressure ［J］. WestChina Exploration Engineering, 2008(11): 28-32．
［9］ 蒋中明. 某水工隧洞裂隙岩体高水头作用下的渗透性试验研究［J］. 岩土力学,2010,31（3）：673-676．
JIANG Zhongming. Test study of osmotic behavior of fractured rock mass of water tunnel under high water pressure ［J］. Rock and Soil Mechanics, 2010, 31(3): 673-676．
［10］ 胡云进,黄东军,冯仕能,等. 水电站引水隧洞衬砌结构形式选择准则研究［R］. 杭州：浙江大学,2010．
HU Yunjin, HUANG Dongjun, FENG Shineng, et al. Selection criteria for lining structure type of hydropower plant diversion tunnels ［R］. Hangzhou: Zhejiang University, 2010．
［11］ GB5021894,工程岩体分级标准［S］. 北京：中国建筑工业出版社,1994．
GB5021894, Classification standard of engineering rock ［S］. Beijing: China Building Industry Press, 1994．
［12］ 褚卫江,侯靖,单治钢,等. 围岩分类系统（BQ,HC,RMR,Q）简明使用手册［R］. 杭州：中国水电顾问集团华东勘测设计研究院,2007．
CHU Weijiang, HOU Jing, SHAN Zhigang, et al. Concise manual for rock classification system (BQ, HC, RMR, Q) ［R］. Hangzhou: East China Investigation and Design Institute, 2007.
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