Guangba expressway-Design Standard
The total length is about148.8km.
Expressway technical standards in mountainous and hilly areas are adopted, and it is a fully enclosed four-lane expressway and fully interconnected concrete asphalt pavement.
The designed driving speed is 80km/h, and the subgrade width is 24.5m m.
Bridge-tunnel ratio exceeds 40%
Guangba expressway-Overview
Guangba Expressway starts from Mianyang (Beijing-Kunming Expressway) to Guangyuan (Mianguang Expressway), passes through Guangyuan suburb, Yuanba, Wangcang, Phuket, Mumen and Zheng Zhi, and ends at Mujiaba in the southeast of Bazhong City.
Guangba expressway is an important part of the transverse passage from Hangzhou to Lanzhou in the national key highway construction plan "13 vertical 15 horizontal", which is one of the trunk lines in expressway network in Sichuan and the main skeleton of the highway in northern Sichuan. After completion, it will take about 4 hours for Bazhong citizens to drive to Chengdu. As a famous old revolutionary base area and the heart of Sichuan-Shaanxi revolutionary base area in history, Guangba expressway, the first expressway in Bazhong City, will become an important link connecting poverty-stricken areas in western Gansu, Shaanxi and northern Sichuan with developed areas in central and eastern China.
Guangzhou-Pakistan Expressway was officially started on February 3, 2005, and was opened to traffic from Yuanba to Phuket on February 30, 2009, and from Phuket to Bazhong on May 30, 20 10. Guangyuan transit section started construction on February 23rd, 2009, and was opened to traffic on April 29th, 20 12.
Guangba expressway-Construction Standards and Reply
The total length from Guangyuan to Bazhong expressway is148.675km, and the technical standards of expressway in mountainous and hilly areas are adopted. The design load of the bridge is Grade I, and the maximum longitudinal slope is 5%. The calculated driving speed is 80 kilometers per hour, and the subgrade width is 24.5 meters. There are 65,438+065,438+0 interchanges on the whole line, and the bridge-tunnel ratio exceeds 40%.
In May 2005, the project was approved by the National Development and Reform Commission on the Feasibility Study Report of Guangyuan-Bazhong Highway in Sichuan Province (Development and Reform Investment [2005] No.861). In September 2005, the Ministry of Communications approved the preliminary design with the Reply on the Preliminary Design of Guangyuan-Bazhong Highway in Sichuan Province (Jiao Gong Fa [2005] No.450). Guangba expressway Engineering Construction Headquarters of Sichuan Provincial Communications Department (Sichuan Guangba expressway Co., Ltd.) is responsible for the construction and management of Guangba expressway on behalf of Sichuan Provincial Communications Department.
Geological conditions along expressway-Guangba.
The geological and topographical conditions along the expressway of Guangba are very complicated, the water system is developed, the V-shaped valleys are obvious, and there are many hidden dangers of geological disasters such as landslides, collapses and rock piles along the line, so the construction management is very difficult. Around the clock, the project owners and contractors adopted the "5+2" and "white+black" emergency repair operation systems to speed up the construction of the project in an all-round way, so as to ensure the completion and opening to traffic of Guangba expressway one year ahead of schedule.
Guangba expressway-groundbreaking ceremony
On the morning of February 3rd, 2005, on 10, Guangba expressway officially started construction.
The smooth construction of expressway Dongxingchang Tunnel in Guangba means that the Guangba expressway project, which the people of Pakistan and China have been looking forward to for many years, has changed from the preliminary work to the comprehensive construction stage, which represents the prelude to the comprehensive construction of Guangba expressway.
The construction of Guangba expressway will greatly improve the traffic conditions, development environment, investment conditions and location disadvantages of Bazhong, which is a milestone in promoting the sustained and rapid economic and social development of the old revolutionary base areas in Bazhong.
Guangba expressway-Opening Ceremony
On may 20th10th10th, the opening ceremony of Guangba expressway was held at the Bazhong-Xixi Interchange. More than 2,000 leaders from Sichuan Provincial Communications Department, Guangyuan City, Bazhong City and Bazhou District, as well as owners, construction units and people from all walks of life attended the ceremony.
The above is the introduction of Construction Network to Guangba 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.