Construction of magnificent bridges. That’s what Kangxin Bridge represents. It’s more than just a way to cross. It’s a testament to human ingenuity. The bridge stands as a silent witness to history.
Today we explore the story of Kangxin Bridge. It is a tale of innovation and resilience.
Kangxin Expressway includes the Kangxin Bridge. This expressway is located in Kangding City. It forms part of the southern Sichuan-Tibet line into Tibet. The route starts from Yulin. It connects to the Kangding transit expressway. It passes through several key points. These include Maojiagou and Dacaoping. It also goes through Ertaizi. A Zheduoshan tunnel helps it cross the ridge. The route continues through pond mud dam and water bridge. It then goes through Maiba and Waze. It ends at East Eluo Village in Xinduqiao Town.
The preliminary design spans 79.449 kilometers. There are 22 bridges and 8 tunnels. Four interchanges are planned. One is a hub interchange. Two service areas will be built. These are the Maojiagou complex and Waze service area. There will be a parking area too. The bridge-tunnel ratio is 65.1%. The total investment is estimated at 16.457 billion yuan.
Building expressways in such areas is unprecedented. It requires overcoming world-class technical problems. The project crosses the Sichuan Basin. It is located in the transition zone to the Qinghai-Tibet Plateau. This area faces six extremes. The first is extremely complicated topographical conditions. The second is extremely complicated geological conditions. The third is extremely harsh climatic conditions. The fourth is an extremely fragile ecological environment. The engineering construction is extremely difficult. Sector activities are extremely active.
Special safety assessments were carried out. These considered extra-long tunnels and extra-large bridges. The assessments focused on areas with ultra-high seismic intensity. Special meteorological studies were also conducted. These helped develop measures to reduce the impact of winter ice and snow. Design quality is a key focus. Innovative design is strengthened. Modern information technology platforms are used. The goal is to achieve full process management and control.
Two full-cycle measures are in place. The first is full recycling of tunnel slag. High-strength granite and quartzite waste slag is used. It is used for rolling gravel and machine-made sand. This material supports subgrade, bridge and tunnel engineering. The second measure is full recycling of construction sewage. After treatment and sedimentation, this water washes vehicles and roads. This ensures green construction practices.
Kangxin Expressway is vital to national highway G4218. It extends the Yakang Expressway westward. Once complete, it will connect Yakang and Chengya Expressways. It will create a major passage for rural revitalization. It will also form a major corridor for ethnic unity in Ganzi Prefecture.
As you stand here on Kangxin Bridge. Think about the challenges overcome to create it. The dedication to safety. The commitment to green construction. It embodies progress and connection.