Interchange Project Design of Longxi _3115

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Interchange Project Design of Longxi

: A school can go l70 Hefei University ( Natural Science) 1997 20 ( 6) 2.2.1 program on a main line in Wuhu , Xuzhou a wide cross- Hefei - Nanjing Expressway ( 1 ) the overall building height is higher ( Above the highest point off the assembly line the road 12m), linear stretch (2 ) Interchange natural drainage of surface area , good reliability, then on to declare water destruction, to facilitate handling of the technical foundation . (3 ) large area , a total of 1195 acres ; demolition of a large quantity of construction demolition material 6228m2 (4) project a large amount of bridge length of 3400m, the ramp length of 13367m. (5) The construction period is long, about 3 years. (6 ) high project cost a total investment of about 2 million yuan. 2 +2,2 program two Xuzhou beneath a main line in Wuhu , Hefei ~ Nanjing Expressway (1 ) moderate the overall building height ( highest point above the surface off the assembly line 7.5m, the lowest point on the line below the surface of 7.5m), the layout Compact , symmetrical , linear flat and comfortable. (2 ) based on the interchange within the catchment area of ridicule , focus on cutting drainage, technical feasibility , the surface transformation of natural water systems to be added . (3 ) small footprint, a total of 630 acres ; demolition less , a total demolition of buildings 3400m2. (4 ) project a small amount of bridge length of 1000m, the ramp length of 8666m. (5) The construction period is short, about 2 years. (6 ) low construction cost , with a total investment of 82.07 million yuan . The characteristics of these two programs are compared , a small program two programs accounted for more than 565 acres of land ,[link widoczny dla zalogowanych], reduce the duration of 1 year to save RMB 1.18 billion. Therefore, the second option as the recommended program. 3 Conclusion Interchange selection should be based on its topography, geomorphology and engineering geology, with its traffic and capacity analysis as the basis. Longxi Interchange Alternatives by many , to recommend the investment, to meet the need of passage novel design , attractive appearance of the half clover leaf type, with two directional ramp of the interchange program, shown in Figure 3, the program has been adopted , and has Opened to traffic.