大学毕业论文—公路隧道.doc

摘要 随着科技的不断进步，现代隧道无论是从结构计算，还是从施工方法都较以前有了较大的飞跃。本设计课题为公路隧道，注重的是结构计算，重点研究新奥法施工。 公路隧道近些年在高等级公路中应用广泛。因为其在山岭地区可用做克服地形或高程障碍，改善线形，提高车速，缩短里程，节约燃料，节省时间，减少对植被的破坏，保护生态环境；还可用做克服落石、坍方、雪崩、雪堆等危害。在城市可减少用地，构成立体交叉，解决交叉路口的拥挤阻塞，疏导交通，保护环境，提高社会综合效益。在江河、海峡、港湾地区，可不影响水路通航。 新奥法施工隧道的主要特点是：通过多种量测手段，对开挖后隧道围岩进行动态监测，并以此知道隧道支护结构的设计与施工。其核心目的是为了“保护围岩，调动和发挥围岩的自承能力”。 关键词　隧道；新奥法；围岩压力 Abstract Along with progress unremittingly of science and technology, the modern tunnel computes from the structure regardless, or all compare to is before from the construction methods bigger leap.This design topic for the highway tunnel, what to pay attention to is a structure calculation, the point research the New Austrian Tunneling Method start construction. The highway tunnel the nearer year is in high grade highway the application is extensively.Because it can use to do to overcome the geography or high distance obstacles in the mountain range region, the improvement line form, raise the car soon, shorten the mileage, economize the fuel, save time, reduce to the breakage of plant the quilt, the protection ecosystem environment;Can also use to do to overcome the rockslide, landslide, avalanche, snow an etc. endanger.Can reduce in the city with the ground, the composing flyover, solve the crossroad oscular and crowded jam, appease the transportation, environmental protection, raise the social comprehensive performance.At rivers river, straits, the bay region, dont affect the water road navigation. The New Austrian Tunneling Method start construction the main characteristics of the tunnel is:Pass various measurement meanses, after folio dig the tunnel rounds the rock to carry on the dynamic state monitor, and with this design and the construction that knows that the tunnel pays to protect the structure.Its core purpose is for the sake of the protection rounds the rock, transfer and develop to round the rock of from accept the ability. Key Words tunnel; New Austrian Tunneling Method; Round the rock pressure 目录 摘要 I