Mianxi Expressway, namely Mianyang-Xichong Expressway, starts from Yongming Town, Santai County, Mianyang City, connects with Mianyang South Ring Expressway, passes through Yanting County and Xichong County, ends at Guishiba, Xichong County, and connects with Guangyuan-Nanchong Expressway. The total length of the route is about 124 km. Expressway in Mianxi is built by BOT, and it is planned to adopt the technical standard of two-way four-lane expressway, with a design speed of 80km/h and a subgrade width of 24.5m m. After completion, the time from Mianyang to Nanchong will be shortened to more than 1 hour.
construction project
Route direction
The recommended project of Mianxi expressway starts from Yongming Town, Santai County, Mianyang City (K0+000), and connects with expressway, the southern ring of Mianyang, which is under construction, and establishes a cross junction to connect Miansui expressway (MSK30+873.77). The route passes through Santai Zhongtai in the northeast, and Zhongtai Interchange (K6+302) is set in Jiajiawan to connect Mianyan Road through local roads, passing through Liuchi and Tashan, Tashan Interchange (AK20+500) is set in Lianshan Bay to connect Mianyan Road, passing through Xujiaya, Gaojiashan, Huojiashan and Baihuzui, and Xiaozhongli Interchange (AK30+) is set in Wangxiangtai. Yanting North Interchange (AK52+550) is located in Shahepu via Dongguan Temple and Zhuji Temple, connected to S 10 1 Line, passed through Zhaizishan, Tianbaozhai, Shuang Mu ditch and Laochen ditch, and Huangdian Interchange (AK62+950) is located in Liang Shi Bay, passing through Fengjiawan, Hejiawan and Lujiawan. Jiulong Interchange (AK78+ 185) will be set up in Zhaoershan, passing through Lijiashan, Sanfangyan, Qiaolou Village and Shiqianyan, Jinkong Interchange (AK84+625) will be set up in Yangyuan Village, passing through Zitong Temple, Dongyue Temple, Fude Village, Ebei Reservoir South, Rongping Village and Kanniuwan, and Feng will be set up in Pengjiagou. Zhanshan Interchange (K 105+ 137) is set at Gongbei Bridge to form a crossroads with Suixi Expressway, and then Xichong South Interchange (K 109+736) is set at Sanerya via Jijiahu to connect Zhang Lan Road to Xichong County, and then passes through Zhangmiaogou, Chenjiagou and Xichong County.
The total length of the route is 123. 18km, including 92.2km in Mianyang and 3 1.4km in Nanchong. The whole line adopts two-way four-lane expressway technical standard, with design speed of 80km/h and subgrade width of 24.5m m..
There are altogether three intersections 13 across the line, including Yongming Hub Interchange 1 3, and three single-horn interchanges in Yongtai, Tashan and Xiao Zhong in Yongming Town, Santai County. In Yanting County, four single-horn interchanges are set up in Yanting North, Huangdian, Jiulong and Jinkong, and 1 interchange is set up in Jiangjiawan Hub across the south of Chengdu. Xichong County has two single-horn interchanges in Fenghe and Xichongnan (Hongdougou), and two interchanges in Zhanshan and Guishiba.
major control point
According to the layout of Sichuan highway network and the highway traffic planning of Mianyang City and Nanchong City, Yongming, Yanting County and Xichong County are the main control points of this project.
At the same time, about15km of interchange lines will be built and 3 interchanges will be set up, including Yongming (hub), Zhongtai, Tashan, Xiao Zhong, Bai Zi, Yanting North, Huangdian, Jiangjiawan (hub), Jinkong, Fenghe, Zhanshan, Xichongnan and Guishiba (hub). Guishiba Hub is connected with Guangnan Expressway, and Jiangjiawan Hub is connected with Chengde South Expressway.
scale of construction
The total investment of the recommended project is estimated to be about 654.38+0.025 billion yuan, with an average cost of 82.08 million yuan per kilometer.
The main construction scale of the recommended scheme: earthwork12143,000 cubic meters, drainage protection project 577,900 cubic meters and pavement project1539,000 square meters. There are 79 large bridges19645m/seat, and 732m medium and small bridges/1seat, totaling 20377m /90 seats, accounting for16.48% of the length of the line; * * * Set 15230m /30 tunnel, accounting for12.32% of the line length; The ratio of bridge to tunnel is about 28.8%. There are altogether three intersections 13 and six separated interchanges on the whole line, with a permanent area of 1249 1 mu.
construction time
The project is scheduled to start in September, 20 15 and be completed in 20 18, with a construction period of 3 years.
social meaning
After the completion of Mianxi Expressway, Mianyang can enter Jialing River waterway through Nanchong Port, which strengthens the connection between Chengdu Plain Economic Zone and Northeast Sichuan Economic Zone.
The above is the introduction of Zhong Da Consulting of CBI to Mianxi Expressway. For more information about expressways, please pay attention to the architectural knowledge column of Zhong Da Consulting.
For more exclusive information about the construction industry, please pay attention to the micro-signal of the construction network in real time.
For more information about bid writing and improving the winning rate, click on the bottom customer service for free consultation.