Shongtong–Karchham Hydro Electric Project

Encardio Rite provided comprehensive slope stability monitoring for the Shongtong Karcham HEP in Himachal Pradesh, India. The project included the installation of inclinometers and other geotechnical instruments to monitor soil erosion, landslide risks, and the stability of the abutment slopes. Real-time data was collected, and regular reports were provided to stakeholders, ensuring effective risk management and stability monitoring throughout the construction of the dam and other infrastructure.

Shongtong–Karchham Hydro Electric Project

The HPPCL developed the Shongtong–Karchham Hydro Electric Project 450 MW on the river Satluj in District Kinnaur of Himachal Pradesh. The project is envisaged as a run-of-river (RoR) Scheme. The barrage site is located near village Powari, and the powerhouse is located near village Ralli on the left bank of river Satluj near the confluence of river Bapsa with river Satluj. The HEP not only provides affordable power to the residents of Himachal Pradesh but also provides excess power to other states within India.

The project includes:

  • Barrage - 26 m high, 122.6 m long at the top 
  • Four 260 m long underground chambers
  • 7.7 km headrace tunnel
  • 110 m high and 30.6 m diameter surge shaft
  • 23 m wide by 54 m high underground powerhouse

 

Scope of works: Supply, installation, monitoring, and reporting

Encardio Rite supplied and provided installation and monitoring services for a comprehensive range of instruments for risk assessment during the construction of the diversion barrage. Instrumentation included borehole extensometers – multipoint, compression load cells, portable readout units, digital tape extensometer, and bireflex target

Encardio Rite was also awarded the contract for slope monitoring in the abutment. Digital Inclinometer is being used for monitoring slope stability. The installation and monitoring is quite a challenge as these are installed on the hills. The installation was quite deep, up to 100 m below ground level. 

 

Project DetailsShongtong–Karchham Hydro Electric Project
LocationReckong Peo, Himachal Pradesh 
ClientHimachal Pradesh Power Corporation Limited (HPPCL)
ContractorHimachal Pradesh Power Corporation Limited (HPPCL)
ConsultantsKFW
Year2017 – till date (2021)

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