波浪影响下半无限含水层中隧道渗流场分析
发布时间：2019-06-25 07:56
【摘要】：根据线性波浪引起水下土体残余孔压增长理论,采用Laplace变换得到衬砌在受波浪荷载下的外水压力及渗流量,并得到水底带衬砌隧道渗流量和衬砌周边水头解答。计算结果表明:(1)波陡H/L0.09后衬砌将要承担比静水压力引起的更大的外水压力,土体渗透系数减小波浪对隧道外水压力和渗流量的影响反而逐渐升高,当kL=1×10-7 m/s时,无论是波浪还是静水压力作用下隧道的渗流量都得到有效控制;(2)5~10s周期的波浪及水深dL/2处的水域对衬砌渗流量影响较大,近岸水下隧道有必要考虑波浪影响。
[Abstract]:According to the theory of residual pore pressure growth of underwater soil caused by linear wave, the external water pressure and seepage flow of lining under wave load are obtained by Laplace transform, and the seepage flow rate of underwater tunnel lining and the water head around the lining are obtained. The calculation results show that: (1) the lining after wave steepness H/L0.09 will bear greater external water pressure than that caused by hydrostatic pressure, and the influence of wave permeability coefficient on the external water pressure and seepage flow rate of tunnel increases gradually when kL=1 脳 10 鈮，
本文编号：2505524
[Abstract]:According to the theory of residual pore pressure growth of underwater soil caused by linear wave, the external water pressure and seepage flow of lining under wave load are obtained by Laplace transform, and the seepage flow rate of underwater tunnel lining and the water head around the lining are obtained. The calculation results show that: (1) the lining after wave steepness H/L0.09 will bear greater external water pressure than that caused by hydrostatic pressure, and the influence of wave permeability coefficient on the external water pressure and seepage flow rate of tunnel increases gradually when kL=1 脳 10 鈮，
本文编号：2505524
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