隧道预设喷混凝土壳体的施工在预切割隧道施工法中应用喷混凝土，不同于传统的临时喷混凝土支护，它是将混凝土喷入预切割的缝槽中而不是把混凝土喷在已开挖好的洞室表面。这种预切割和预设衬砌的技术引起隧道工作者的极大兴趣。呈筒状锥体的预设的喷混凝土壳体纵向长３～... Tunnel pre-injection concrete shell construction in the pre-cut tunnel construction method using sprayed concrete, different from the traditional temporary spray concrete support, which is injected into the pre-cut concrete slot rather than the concrete spray has been opened Dig well in the surface of the cave. This pre-cut and pre-lining technique is of great interest to tunnel workers. Predetermined spray cone concrete shell length of 3 to ...