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介绍了浅埋、大跨度、双洞八车道小净距公路隧道的初步设计方案,有限元计算表明水平对拉锚杆和系统锚杆的设置有利于抑制中柱塑性区的交叉连通及拱顶塑性区与地面的连通,所得结论对类似隧道设计和施工有参考价值。
The preliminary design scheme of shallow buried, long-span, double-hole and eight-lane small clear road tunnel is introduced. The finite element analysis shows that the horizontal pull bolt and the system anchor rod are helpful to restrain the cross-connection and dome Plastic zone and ground connectivity, the conclusions of similar tunnel design and construction of a reference value.