The most intense highway tunnels

The most intense highway tunnels Long Yong highway located in xiangxi autonomous prefecture yongshun, longshan county, hubei enshi to jishou expressway in hunan, from walled village, longshan county gansu wall in yongshun jersey home zhenhai village, line 91. Long 086 kilometers, connecting line 53. 193 kilometers, the budgetary estimate of $133. 0. 3 billion yuan, the full supply bearing grouting material, M50 harsh non-shrinkage mortar, M50 liquidity non-shrinkage mortar, prestressed pipe grouting seam an agent, prestressed pipe pressure sizing agent a variety of dry powder mortar. Long Yong highway, traffic and enshi of hubei province to the north to the highway to the wind, can direct, shaanxi, chongqing, hubei, and younge highway bridge under construction in south connect directly to jishou, guangdong, the heroin interoperability and zhang highway intersection, directly to the provincial capital changsha. Since then, longshan to changsha only need 5 hours, than in the past at least shortened 3 hours. As crucial for poverty alleviation in the wuling mountain areas in western hunan project, Long Yong highway carrying through northwest of hunan province channel, optimizing the xiangxi traffic aorta, perfect the provincial road network structure, improve the xiangxi large investment environment, promote the ethnic minority areas economic and social development, accelerate hunan economic efficient and balanced development of important mission. Long Yong high-speed red rock creek bridge on highway administration of hunan province is taken as is located in the wuling mountain mainland, terrain, geological conditions are extremely mixed and disorderly, Long Yong highway bridge across the tunnel is as high as 58%, a total of 19, 20 km, 70 Bridges, more than 30 kilometers, during which more than 50 meters thin-wall high piers in more than 200 and more than 12000 meters. Long Yong highway project construction plan, construction technology of mixed and disorderly, opposing accentuating safety, environmental protection mission, build frequently encountered in the process of gas ( Shale gas) , water, mud, cave and underground river, the ancient landslide, such as unfavorable geological conditions, was built in hunan province highway construction in one of the most difficult projects. For Long Yong expressway will be completed as soon as possible the northwest of hunan road for poverty alleviation, riches gradually, since substantial starts on August 15, 2013, Long Yong highway builder careful deployment, scientific construction, to fight, and overcome the difficult moments and heavy duty, and other difficulties, completed early in December 2015, 57. Opening policy, 325 kilometers to the main line of the project 62 miles. 93% for all completed high quality traffic early have laid a solid foundation, the