水下隧道渗流特征及计算流域界限研究

doi:10.13722/j.cnki.jrme.2014.12.005

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Abstract After tunnel is excavated，the effect of seepage on the surrounding rock is very serious. So far，the differences of seepage are remarkable between the analytical results or numerical results and the practical seepage influence. While analyzing，the considered seepage area is the whole half-plan，not only the calculating load is enlarged，but also the surrounding rock is not influenced more seriously by the farther seepage. Aiming at the problems of the nonlinear seepage and the calculated watershed in surrounding rock，a simple and effective mathematical method is presented to derive the seepage force expression in the surrounding rock；and the effects of tunnel radius and embedded depth on the seepage action are also researched by the analytical expression。Comparisons between the analytical results and numerical results show that they coincide with each other very well，and that the mathematical method proposed is rational. Finally，the analytical expression is used to research the calculation seepage boundary，and a new theoretical method to calculate the seepage boundary is proposed. The results not only satisfy the seepage requirements，but also save the calculation load.

Key words： tunnelling engineering seepage force calculation seepage boundary analytical method numerical method

Received: 15 September 2014

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.12.005 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/I12/2402

[1] 王秀英，谭忠盛，王梦恕，等. 高水位隧道堵水限排围岩与支护相互作用分析[J]. 岩土力学，2008，29(6)：1 623–1 628.(WANG Xiuying，TAN Zhongsheng，WANG Mengshu，et al. Analysis of interaction between surrounding rock and lining in high water-level tunnels with controlled drainage[J]. Rock and Soil Mechanics，2008，29(6)：1 623–1 628.(in Chinese)) [2] LIN H I， LEE C H. An approach to assessing the hydraulic conductivity disturbance in fractured rocks around the Syueshan tunnel，Taiwan[J]. Tunnelling and Underground Space Technology，2009，24(2)：222–230. [3] LI X. Stress and displacement fields around a deep circular tunnel with partial sealing[J]. Computers and Geotechnics，1999，24(2)：125–140. [4] LI X，FLORES-BERRONES R. Time-dependent behavior of partially sealed circular tunnels[J]. Computers and Geotechnics，2002，29(6)：433–449. [5] NAM S W，BOBET A. Liner stresses in deep tunnels below the water table[J]. Tunnelling and Underground Space Technology，2006，21(6)：626–635. [6] ARJNOI P，JEONG J H，KIM C Y，et al. Effect of drainage conditions on porewater pressure distributions and lining stresses in drained tunnels[J]. Tunnelling and Underground Space Technology，2009，24(4)：376–389. [7] LEE I M，NAM S W. The study of seepage forces acting on the tunnel lining and tunnel face in shallow tunnels[J]. Tunnelling and Underground Space Technology，2001，16(1)：31–40. [8] BOBET A. Effect of pore water pressure on tunnel support during static and seismic loading[J]. Tunnelling and Underground Space Technology，2003，18(4)：377–393. [9] LI H Z，LOW B K. Reliability analysis of circular tunnel under hydrostatic stress field[J]. Computers and Geotechnics，2010，37(1)：50–58. [10] FAHIMIFAR A，ZAREIFARD M R. A theoretical solution for analysis of tunnels below groundwater considering the hydraulic-mechanical coupling[J]. Tunnelling and Underground Space Technology，2009，24(6)：634–646. [11] SHIN Y J，KIM B M，SHIN J H，et al. The ground reaction curve of underwater tunnels considering seepage forces[J]. Tunnelling and Underground Space Technology，2010，25(4)：315–324. [12] SHIN Y J，SONG K I，LEE I M，et al. Interaction between tunnel supports and ground convergence-consideration of seepage forces[J]. International Journal of Rock Mechanics and Mining Sciences，2011，48(3)：394–405. [13] LEE S W，JUNG J W，NAM S W，et al. The influence of seepage forces on ground reaction curve of circular opening[J]. Tunnelling and Underground Space Technology，2006，22(1)：28–38.