發(fā)布時間：2019-06-25 07:56

【摘要】：根據(jù)線性波浪引起水下土體殘余孔壓增長理論,采用Laplace變換得到襯砌在受波浪荷載下的外水壓力及滲流量,并得到水底帶襯砌隧道滲流量和襯砌周邊水頭解答。計算結(jié)果表明:(1)波陡H/L0.09后襯砌將要承擔(dān)比靜水壓力引起的更大的外水壓力,土體滲透系數(shù)減小波浪對隧道外水壓力和滲流量的影響反而逐漸升高,當(dāng)kL=1×10-7 m/s時,無論是波浪還是靜水壓力作用下隧道的滲流量都得到有效控制;(2)5~10s周期的波浪及水深dL/2處的水域?qū)σr砌滲流量影響較大,近岸水下隧道有必要考慮波浪影響。
[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，

本文編號：2505524