仰拱栈桥计划(国外英文资料).docVIP

仰拱栈桥方案(国外英文资料) Yan you highway A20 contract section construction plan The proposed construction plan for the arch pier First, the general situation of the project Technical standards for tunnel design (1) highway grade: two-way four-lane highway (2) design speed: 80km/h Design load: highway I grade (4) the limits of the tunnel construction, as shown in table 1 Table 1 tunnel building limit table project Width (m) Clear height (m) Driveway (m) Side width (m) Access road (m) The main hole 10.25 5.0 3.75 * 2 0.5 + 0.75 0.75 + 0.75 The emergency parking area 13.0 5.0 3.75 * 2 0.5 + 3.5 (parking) 0.75 + 0.75 The car cross channel 4.5 5.0 The pedestrian cross channel 2.0 2.5 (5) hole cleaning: longitudinal ventilation, the concentration of CO allow: tunnel length of 1000 m or less delta L = 1000 PPM, tunnel length 3000 m or higher delta L = 250 parts per million (the rest of the interpolated values), smoke allowable concentration: 0.0065 m - 1. Tunnel setup This tunnel is divided into long tunnels by length Table 2 tunnel schedule The name of the tunnel The length of the tunnel Yanling side hole Your city side hole The hole pile no. The design elevation The hole pile no. The design elevation Cold ridge tunnel The left hole 2820 ZK87 + 580 654.33 ZK90 + 400 576.05 Right hole 2820 K87 + 580 654.25 K90 + 400 575.95 Cold ridge bound tunnel Tunnel span 2820 m, one-way traffic tunnel, tunnel for the hole around the hole spacing between layout and 21.0 ~ 37.5 m, in which yanling K87 + 580 ~ K87 K90 + 300 ~ + 800, ye city end K90 + 400 layout line spacing is less than 25 m, according to the separated tunnel design, construction according to the construction of small interval method. Yanling end up tunnel plane located 1600 m + R = R1800m S curve, pick for the straight line segment of the left line of your city side tunnel R = 1000 m to the easement curve segment, the right line to line segment joint R = 1200 m to the easement curve segment. The maximum horizontal slope of the le