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Anji Khad Rail Bridge: India’s First Cable-Stayed Railway Bridge
- The Anji Khad Rail Bridge is situated in the Reasi district of Jammu and Kashmir.
- It is India’s first cable-stayed railway bridge.
- The bridge is an engineering marvel and a significant part of the Udhampur-Srinagar-Baramulla Rail Link (USBRL) project.
- Its primary objective is to improve connectivity to the Kashmir Valley.
Design and Structure
- Cable-Stayed Design: The bridge features a single pylon rising 193 meters from its foundation, supporting a 473.25-meter span with 96 cables—48 on each side—providing stability and strength.
- Dimensions: The total length of the bridge is 725.5 meters, including a 120-meter ancillary viaduct on the Reasi side and a 38-meter approach bridge on the Katra end. The deck, 15 meters wide, accommodates a single railway line, a service road, and footpaths.
- Height: Standing at 331 meters above the riverbed, the bridge is among the tallest in the world, second only to the Chenab Bridge in India.
Engineering Challenges and Solutions
- Geological Complexity: The construction site is characterized by complex geological features, including faults, folds, and seismic activity. Detailed investigations by IIT Roorkee and IIT Delhi led to the implementation of a hybrid foundation at the Katra end to stabilize the slopes, ensuring structural integrity.
- Advanced Construction Techniques: Innovative methods such as DOKA jump form shuttering and pump concreting systems were employed, reducing construction time by approximately 30%. A state-of-the-art tower crane, imported from Spain, facilitated construction at heights up to 193 meters.
Safety and Monitoring Systems
- Integrated Monitoring: The bridge incorporates an advanced integrated monitoring system with numerous sensors installed throughout its structure. These sensors monitor the bridge’s health during its service life, ensuring safety for users.
- Earthquake Resilience: Considering the region’s seismic activity, the bridge is designed to withstand wind speeds up to 213 km/h and includes measures to ensure stability during earthquakes.
Construction Milestones
- Pylon Completion: The construction of the main pylon was completed in March 2021.
- Cable Installation: All 96 cables were installed by April 2023, marking a significant milestone in the bridge’s construction.
- Trial Runs: A successful trial run of a tower wagon was conducted in December 2024, bringing the project closer to completion.
Impact on Connectivity
- Transportation Boost: Enhances transportation in Jammu and Kashmir.
- Improved Access: Provides better connectivity to the Kashmir Valley.
- Tourism Promotion: Encourages tourism growth in the region.
- Economic Growth: Contributes to the region’s economic development.
- Infrastructure Milestone: Marks a key achievement in India’s infrastructure development.
- Valley Integration: Brings the Kashmir Valley closer to the rest of the country.
Important questions
- Where is the Anji Khad Rail Bridge located?
- What is the primary objective of the Udhampur-Srinagar-Baramulla Rail Link (USBRL) project?
- How tall is the pylon of the Anji Khad Rail Bridge?
- What advanced construction techniques were used to build the bridge?
- How does the Anji Khad Rail Bridge ensure safety in a seismically active region?
Conclusion
The Anji Khad Rail Bridge exemplifies India’s engineering prowess and commitment to enhancing connectivity in challenging terrains. As the first cable-stayed railway bridge in the country, it sets a precedent for future infrastructure projects, demonstrating that with innovation and determination, even the most formidable engineering challenges can be overcome.
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