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在英国,由喷混凝土、格栅架和钢筋网组成的初期支护+防水卷材+现场浇注的二次衬砌这种传设计方法已经全面改革,一些大工程项目由于采用了改革的设计益良多。目前典型的喷混凝土衬砌设把喷涂防水膜与二次衬砌喷混凝层结合在一起。所有的喷混凝土护衬砌(包括初期支护和二次衬喷混凝土层)的设计方法,使喷机械臂及相关机械得到充分利用并且能在安全的条件下获得更强更耐久的高质量工程。
In the UK, initial support consisting of shotcreting, grid frames and steel mesh + waterproofing membrane + secondary lining cast in place The design methodology has been completely reformed and some major projects have been reformed due to the design benefits many. At present, the typical spray-concrete lining is to combine the sprayed waterproofing membrane with the secondary lining sprayed concrete layer. All spray concrete lining (including the initial support and secondary lining of the concrete layer) design, so that the spray arm and related machinery to take full advantage of and in the safety conditions can be more strong and durable high-quality projects.