The Naqian expressway Project starts from Chaiquan Township, xuyong county (Qianchuan boundary), connects Xiamen to Guiyang, Guizhou, expressway to Bijie to Chuanqian boundary in the south, connects Chengdu, which has been completed and opened to traffic, to Longchang to Naxi expressway in the north, and ends in Xinle Town, Naxi District, Luzhou City. The project starts from Chaiquan Township, xuyong county (Qianchuan boundary), connects Xiamen-Chengyang, expressway, to Bijie-Chuanqian boundary in the south, connects Chengdu, which has been opened to traffic, to Longchang, to expressway, Naxi, and ends in Xinle Town, Naxi District, Luzhou City. This highway passes through karst area, which is the longest highway with the most complicated geological structure in our province. Along the line, ravines are criss-crossed, the water system is developed, caves, caverns, funnels and underground rivers are widely distributed, and there are many mined-out areas. High pier bridges and long tunnels are dense, and there are many continuous sections with long longitudinal slopes.
The total length of Naqian expressway Project is 134.803Km, the subgrade width is 24.5m, the designed driving speed is 80 km/h, and there are 9 interchanges in the whole line. Main quantities of the whole line: subgrade earthwork 2219000m3, extra-long tunnel 4067m/1 (Xulingguan tunnel), long tunnel 9 100m /5, extra-large bridge 4632m /4 and large and medium-sized bridge 33760m/136. The proportion of bridges and tunnels in the whole line is 40% (of which the length from Qianchuanjie to Xuyong County is 60 kilometers, and the proportion of bridges and tunnels is 57%; It is 74.8km from xuyong county City to Xinle Town, Naxi District, with a bridge-tunnel ratio of 27%. The total investment is 65.438+0.0752 billion yuan, and the construction period is 4 years. 2065.438+02 The whole line was completed and opened to traffic. Luzhou-Xuyong section 20 1 1 will be opened to traffic before the end of the year.
Naqian Expressway * * *: There are three service areas: Naqian Expressway Gao Qiao Service Area, Naqian Expressway Xuyong Service Area and Naqian Expressway Naxi Service Area, among which Xuyong is Class A service area (Xuyong service area will become the largest expressway service area in southern Sichuan, covering an area of over 120 mu), and Gao Qiao and Naxi are Class B service areas. In addition to the three service areas, two parking areas will be set up near Dongxiangpu Station and Cha 'eryan in Xuyong Town to facilitate drivers to rest and vehicles can be properly trimmed. There are also toilets and gas stations in the parking area. According to reports, Puzhan parking area was chosen mainly because there is a Xulingguan tunnel more than 4 kilometers long, and drivers are prone to fatigue after passing through this tunnel. Cha 'er Rock is chosen because it is the highest altitude place in the whole expressway, and the driver can have a rest when going up and down, which is beneficial to safe driving.
After the Naqian Expressway is opened to traffic, it starts from Luzhou and passes through Huangjue Bay (near the junction of Longna Expressway and Naqian Expressway), Huguo, Jiangmen, Huangjueping, Shuangqiao (which can be interconnected with Yibin-Xuyong-Gu Lin-Chishui Expressway), Xuyong, Zhendong, Gao Qiao and Mani.
The above is the introduction of the Naqian expressway project by China Construction Network. For more information about expressways, please pay attention to the architectural knowledge column of Zhong Da Consulting.
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