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围绕布尔诺建设的环形公路,穿山部分建全长510ｍ的隧道,其中285ｍ为暗挖,225ｍ为明挖。隧道设计成两孔,每孔2车道,两孔间距仅49ｍ。隧道断面的开挖高度86ｍ,开挖宽度13ｍ,坡度53%。隧道按新奥法设计,初期支护厚300ｍｍ,玻璃纤维锚杆,防水层为ＰＶＣ膜,与排水系统和侧向排水沟相
Around the circular road built in Brno, part of the tunnel is built with a total length of 510m, of which 285m is undercutting and 225m is open excavation. The tunnel is designed with two holes, two lanes per hole, and the distance between the two holes is only 49m. Tunnel section excavation height 86m, excavation width 13m, gradient 53%. The tunnel is designed according to the New Austrian law. The initial support thickness is 300mm. The fiberglass anchor and waterproof layer is PVC membrane, which is connected with drainage system and lateral drainage channel