technology standard
1. The whole line is built according to the standard of two-way four-lane expressway, and the designed driving speed is100 km/h. ..
2. The design width of subgrade is 26 meters, and asphalt concrete pavement is adopted.
3. The vehicle load level is highway level 1.
4. Design flood frequency: extra large bridge 1/300, other bridges and culverts and subgrade1100.
scale of construction
1. The earthwork of the whole subgrade is about 4 1.79 million cubic meters, and the protection and drainage works are 665,000 cubic meters.
2. Main bridge 144, total length17233m; The main line spans 63 separated interchanges and 826 culvert passages.
3. There are * * interchanges 15, including 4 hubs and one horn 1 1; Five new service areas have been built.
4. The total length of the line is 223.090 kilometers, and the estimated investment of the project is about114.2 million yuan.
Project land requisition
The project passes through Honggutan New District of Nanchang City, Xinjian District, Gao 'an City of Yichun City, shanggao county, Yifeng County, Wanzai County, Yuanzhou District, Shangli County of Pingxiang City, 3 prefecture-level cities and 8 counties (cities, districts).
1. The land requisitioned is about 262 10. 1 mu.
2. Expropriate about 460,000 square meters of various houses, 4,497 graves and 0/.055 wells.
3. Dismantle about 90,000 meters of high-voltage wires, 3,200 low-voltage poles and 350,000 meters of telecommunication lines.
Construction significance
1. It is of great significance to build Nanchang's core growth pole, enhance Nanchang's radiation function, promote the economic development of counties in western Jiangxi, such as Gao 'an, Shanggao, Wanzai and Shangli, and promote the development of tourism resources along the route.
2. It is of great significance to improve the expressway network in the whole province, improve the operation efficiency of the road network and adapt to the rapid growth of regional traffic volume and channel traffic volume.
3. It is of great significance to strengthen the connection between Poyang Lake Ecological Economic Zone and Changsha-Zhuzhou-Xiangtan urban agglomeration, promote the development of comprehensive resources along the route, and accelerate the process of urbanization and industrialization.
4. It is of great significance to achieve the goal of 5000 kilometers of expressway mileage in our province in 20 15 years.
Project characteristics
1. The construction scale is large. The estimated investment of this project is about114.2 million yuan. There are 45 bridges * * * 10472m 45, 36 medium bridges * * * 232 1m 36 on the main line, 63 separation interchanges on the main line and nearly 826 culvert passages. There are 0/5 interchanges/kloc-0, 30 management and service facilities, and the total amount of subgrade earthwork is about 4 1.79 million cubic meters.
2. Difficulties in construction organization and coordination. This project has a long line, involving many cities, counties and towns, and is bound to be connected with the Shanghai-Kunming high-speed railway, Nanchang West Ring Railway, Nanchang West Outer Ring Expressway, Daguang Expressway, National Highway 320, Hong Ping Expressway and Yiwan Expressway under construction, which brings great difficulties to the construction organization and coordination.
3. Poor geological and topographical conditions and many controlling factors. Adverse geological phenomena in the area where the project passes mainly include soft soil, landslide, collapse, debris flow, karst collapse or uneven settlement, which brings great difficulties to the project construction.
4. The workload of land requisition and demolition is heavy. The demolition of the project is very large, especially the project involves many mines with exploration rights, a large number of fireworks factories and the suburbs of regional central cities, which is large in scale and difficult.
5. High environmental protection requirements. Nanchang, Yichun and Pingxiang in the affected area of the project are rich in natural and human resources, with high forest coverage, beautiful scenery, long history, numerous historical sites and rich tourism resources. How to protect environmental resources and integrate expressways into nature is a great challenge.
routine
The total investment of the newly-built Nanchang-Shangli Expressway is about 1 1 billion yuan, which is located in Nanchang New District, Gao 'an City of Yichun City, shanggao county City, Yifeng County, Yuanzhou District, Wanzai County and Shangli County of Pingxiang City. The starting point of the recommended scheme is drawn up in Luojia Laowu, Wangcheng Town, New District, which is connected with the urban road planned by Nanchang City, intersects with the expressway in the west outer ring of Nanchang City and is located in Wangcheng, the west outer ring of Nanchang City. The destination is planned to be Shangtang Village, Jinshan Town, Shangli County, Pingxiang City, which intersects with Hong Ping Expressway K30+ 100.
design standards
The total length of the proposed project is 22 1.384km, and the whole line is built according to the standard of two-way four-lane expressway. The subgrade width is 26m, the design speed is 100km/h, the design speed of interchange ramp is 40-60 km/h, and the design speed of hub interchange ramp is 50-80 km/h, all of which are asphalt concrete pavements. Among them, 77 large and medium-sized bridges and 70 small bridges were newly built; A tunnel with a length of1470m; Culvert 851; There are 15 interchange, 1 19 separation interchange, 5 service areas and 13 toll station.
The above is the introduction of Zhong Da Consulting to Changli Expressway. For more information about expressways, please pay attention to the architectural knowledge column of Zhong Da Consulting.
For more information about bid writing and improving the winning rate, click on the bottom customer service for free consultation.