毕业设计（论文）肖家坳隧道工程设计.doc

肖家坳隧道工程设计
摘要
肖家坳隧道由左右分离的两座隧道组成,经过前期地质勘察所取得的材料,对肖家坳隧道进行了设计。总体设计中包括隧道位置选择、线路设计与横断面设计,紧接着经过方案比选采用削竹式隧道洞门。衬砌结构设计这一块按照规范取值,采用直刚法进行验算,验算结果可靠。隧道排防水、照明与通风设计均按照规范取值验算。本设计专题部分是隧道施工设计,由围岩等级等因素本设计Ⅲ级围岩采用全断面开挖施工法、Ⅳ级围岩采用台阶法开挖,以超前锚杆施工为辅助施工方法。监控测量主要包括监控内容与监控方法的选择,其中应注意运营阶段的监控测量不能忽略。
关键词:肖家坳隧道;总体设计;衬砌;全断面开挖;监控测量
XIAO JIA AO TUNNEL ENGINEERING DESIGN
ABSTRACT
Xiao Jia Ao tunnel is consisted of two separated tunnels around position. after the early geological survey made materials of Xiao Pass tunnel design. Overall design including the tunnel location selection, circuit design and cross-sectional design, followed by cutting through the parison using bamboo Tunnel Portal. This is a follow lining structure design specification values, using the straight method just checking, checking results are reliable. Tunnel row waterproof, lighting and ventilation are designed in accordance with the specification value checking. This design is part of tunnel construction project designed by factors such as the design of rock grade Ⅲ grade rock with full face excavation construction method, Ⅳ grade rock excavation step method used to advance the construction of the auxiliary bolt construction methods. Monitoring includes monitoring content measurement and monitoring method of choice, which should be taken to monitor the operational phase measurement can not be ignored.
Keywords: Xiao Jia Ao tunnel; overall design; lining; whole section excavation; monitoring measurements
目录
第一章绪论 1
工程概况 1
隧道工程地质概况 1
地形地貌 1
地层岩性 1
水文地质条件 2
工程地质评价 2
区域稳定性评价 2
隧道围岩工程地质评价 2
有害气体评价 3
隧道水文地质评价 3
岩石物理力学特征 3
设计标准及设计规范 4
第二章总体设计 5
隧道位置选择 5
隧道线路设计 5
隧道线路平面设计 5
隧道线路纵断面设计 5
洞外接线 6
隧道横断面设计 6
隧道净空与限界 6
隧道内轮廓线 8
第三章隧道洞门设计 11
洞口段地质评价 11
洞门设计 11
方案比选 11
第四章衬砌结构设计 12
衬砌设计 12
各级围岩衬砌断面 13
围岩深浅埋确定 14
第五章隧道防水与排水 15
防排水要求 15
防排水的原则 15
本隧道的防排水措施 16