1、摘摘 要要 该设计运用所学的知识完成木冲隧道左线的设计与施工。 木冲隧道左线长 1825m 所经地区为典型的喀斯特地貌，地层为以砂岩、页岩、粉砂岩为主的寒武系地层。 首先依据工程要求和设计规范确定隧道断面，然后根据“荷载-结构”法通过 ANSYS 对结构进行强度检算，根据检算结果配筋。隧道围岩等级主要以级、级、 级和级为主。级和级围岩比较稳定设计采用全断面开挖，级和级围岩， 由于围岩情况差，开挖断面较大设计采用中侧壁导坑法。隧道的主要施工方法：隧道 采用新奥法施工，以喷射混凝土锚杆作为主要的支护手段，通过检测控制围岩变形， 充分发挥围岩的自承能力。 通过对围岩的力学形态以及支护结构的工作状态的
2、监控量 测来评价设计施工水平并及时的改进与调整。 隧道采用管棚作为超前支护，初期支护 采用超前或径向注浆锚杆(小导管)、型钢钢架、钢格栅及挂网湿喷等施工技术，当围 岩与初期支护基本稳定后施做二次衬砌 关键词： 高速公路 隧道 结构设计 施工 新奥法 Abstract The design complete the left hand lane tunnel red wood design and construction .The length of the left line of Mu Chong Tunnel is1825 meter, it crosses karst areas, F
3、ormation is mainly made of sandstone, shale and siltstone Cambrian strata. First of all, based on engineering requirements and design specifications to determine the tunnel section, And then under the “load - the structure “ law of the structure through the ANSYS calculation of strength, according t
4、o the results of reinforcement calculation. The main tunnel level to grade , level, and grade class-based. Grade and level design is more stable rock so use full-face excavation, Level and grade rock, rock the situation as a result of poor design of the excavation cross-section using a larger hole i
5、n the wall guide method. NATM is the main tunnel construction methods. NATM is the construction method that Shotcrete Anchor is the main means of support by detecting the deformation.By the monitoring of mechanical form of rock and Supporting the work of state structures evaluate the level of design
6、 and construction of improvements in a timely manner with the adjustment Lead pipe roof supports the tunnel.The early Support adopts advanced or radial grouting bolt linked network of steel gratings and construction technology, such as wet-spray. When the rock and the initial support facilities achieve stability then secondary lining Keywords: Expressway Tunnel Design of lining structure Construction NATM 目录目录 第 1 章 绪论 . 1 1.1 课题研究背景 . 1 1.2 国内公路隧道发展状况 . 1 1.3 国外公路隧道发展状况
