• 1. safety lining: 安全衬砖层 | 永久衬
• 2. lining safety: 井壁安全
• 3. Safety of Lining Structure: 衬砌结构安全性

• 1.Tunnelling machines - shield machines, thrust boring machines, auger boring machines, lining erection equipment - safety requirements.
  隧道掘进机。盾构机止推钻孔机螺旋钻探机衬里安装设备。安全要求。
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• 2.Safety factors of rock, including shear safety factor and tensile safety factor, safety factor of lining and design calculation methods of tunnel are studied.
  研究了隧洞围岩安全系数(剪切安全系数、拉裂安全系数)与衬砌安全系数的算法以及隧洞设计计算方法。
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• 3.As tunnels are important structures of highway projects, the treatments of fissure in the lining of tunnels play great roles in the safety operation of tunnels.
  隧道是公路工程建设中的重要结构物，隧道衬砌裂缝控制对隧道的安全运营非常重要。
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