There are 1 1 interchange, 3 service areas, 4 parking lots, 10 toll station, 1 monitoring communication center, 3 maintenance work areas and 1 tunnel monitoring station. The construction area and land occupation of the whole line are strictly controlled according to the preliminary design scale.
The earth and stone work of the whole subgrade is 908.3 1000 m3, and the stone work is 262 1.3 m3. * * Interchange overpass is set at 1 1, with 8,373m/7 extra-large bridges and 3 1052. 1m/6554.
Main supervision and construction units of civil engineering
The whole line is divided into 10 supervision contract section and 35 civil contract sections. Hunan Zhanghua expressway Construction and Development Co., Ltd. is the owner of the project and is fully responsible for the construction management of the project. Hunan Provincial Traffic Survey and Design Institute (Civil Engineering 24-3 1 Bid Section) and Hunan Provincial Traffic Planning Survey and Design Institute (Civil Engineering 1-23 Bid Section and 32-34 Bid Section) are responsible for the survey and design of civil engineering and traffic engineering respectively. Name of Contract Section 1 China Railway 25th Bureau Group Co., Ltd./ China Railway 20th Bureau Group Sixth Engineering Co., Ltd. Hunan Traffic Construction Engineering Supervision Co., Ltd. 2 China Railway 12th Bureau Group Co., Ltd. 3 Zhongnan Municipal Construction Group Co., Ltd. 4 China Railway 10th Bureau Group Second Engineering Co., Ltd. Hunan Traffic Construction Engineering Supervision Co., Ltd. 5 Hunan Highway Machinery Engineering Co., Ltd. 6 Shandong Kunlun Road and Bridge Engineering Co., Ltd. 7 China Railway 17th Bureau Group Fifth Engineering Co., Ltd. Zhongjiao Construction Engineering Consulting (Beijing) Co., Ltd. 8 Luqiao Group International Construction Co., Ltd. 9 Nuclear Industry Changsha Zhongnan Construction Engineering Group Co., Ltd. Hebei Huada Highway Engineering Consulting and Supervision Co., Ltd./KOOC-0/0 Shaoyang Highway and Bridge Construction Co., Ltd./KOOC-0/6 China Railway First Bureau Group Co., Ltd./KOOC-0/2 China Railway Second Bureau Co., Ltd./KOOC-0/3 China Railway Twelfth Bureau Group Co., Ltd. Hunan Huilin Engineering Construction Supervision Co., Ltd./ Kloc-0/4 Yueyang Highway and Bridge Infrastructure Corporation 15 Hunan Construction Engineering Group Co., Ltd. 16 Beijing Xinchang Road and Bridge Construction Co., Ltd. Beijing Jiaoke Engineering Construction Supervision Co., Ltd. 17 Wenzhou Communications Construction Group Co., Ltd. 18 Nuclear Industry South China Construction Engineering Group Co., Ltd. 6 Co., Ltd. Hunan Changshun Engineering Construction Supervision Co., Ltd. 2/ Kloc-0/ Hubei Road and Bridge Co., Ltd. 22 Yiyang Road and Bridge Construction Co., Ltd. 23 Chen Hunan National Road and Bridge Co., Ltd. 24 Zhangjiakou Road and Bridge Construction Group Co., Ltd. Guangxi Guitong Highway Engineering Supervision Consulting Co., Ltd. 25 China Railway 23 rd Bureau Group Co., Ltd. 26 Hangzhou Traffic Engineering Group Co., Ltd. 27 Hunan Highway Machinery Engineering Co., Ltd. 28 Hunan Foreign Construction Co., Ltd. Co., Ltd. Yucai-Brown Traffic Consulting Supervision Co., Ltd. 29 Yueyang Tongquxing Road Company 30 Hunan Huaihua Highway and Bridge Construction Corporation 3 1 Zhongyuan Oilfield Construction Group Company 32 China Railway 23rd Bureau Group First Engineering Co., Ltd. Hunan Huda Construction Supervision Co., Ltd. 33 Jiangxi Jinggang Road and Bridge (Group) Co., Ltd. 34 Hengyang Highway and Bridge Construction Co., Ltd.