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Tidong-I Unit 3 Hydro Electric, Himachal Pradesh, 2024

Rockfall Protection - Tidong-I Unit 3 Hydro Electric, Himachal Pradesh, 2024 2024

Tidong power plant with protection installations from the distance

Rockfall Protection - Tidong-I Unit 3 Hydro Electric, Himachal Pradesh, 2024 2024

Drilling operation at site

Rockfall Protection - Tidong-I Unit 3 Hydro Electric, Himachal Pradesh, 2024 2024

Challenging site condition - works exactly above the powerhouse

Rockfall Protection - Tidong-I Unit 3 Hydro Electric, Himachal Pradesh, 2024 2024

Installation of DELTAX® protective mesh

Rockfall Protection - Tidong-I Unit 3 Hydro Electric, Himachal Pradesh, 2024 2024

Installation of DELTAX® and QUAROX® protective mesh

Rockfall Protection - Tidong-I Unit 3 Hydro Electric, Himachal Pradesh, 2024 2024

Installation of the ringnet rockfall barrier, which, together with the mesh, protects the infrastructure.

Rockfall Protection - Tidong-I Unit 3 Hydro Electric, Himachal Pradesh, 2024 2024

Installation of RXE-500 rockfall barrier

Rockfall Protection - Tidong-I Unit 3 Hydro Electric, Himachal Pradesh, 2024 2024

30 meters of 500 kJ rockfall barrier installed to protect SST-UAT area

Rockfall Protection - Tidong-I Unit 3 Hydro Electric, Himachal Pradesh, 2024 2024

RXE rockfall protection barriers offer maximum safety in the tightest of spaces

 

System length

30 m

 

Year of installation

2024

Initial situation

The project location in Himachal Pradesh, India, lies approximately 40 kilometers east of Kalpa. In 2019, the powerhouse below the cliff was still under construction. By 2024, however, it was fully operational, with sophisticated equipment installed within and on top. Ensuring the prevention of rockfalls during slope stabilization work was critical, as the area was narrower compared to previous work. Dead trees on the vertical edges of the cliff added to the project’s complexity, requiring careful negotiation. Design and technological modifications were necessary at every step. Rockfalls have been observed in the SST-UAT area of the powerhouse, prompting the customer to request a barrier solution for this specific location.

Description

The site required a cost-effective protection system to stabilize the problematic slope and safeguard the powerhouse area permanently. The chosen solution needed to address several challenges: an almost vertically unstable slope with limited accessibility, complex geological conditions, and strict installation time constraints. The client entrusted us with the full responsibility for designing, supplying, and installing the solution.

The client relied on the previously installed flexible slope stabilization system, which utilized QUAROX® 0.3/6.5/275 rolled cable net with Geobrugg SUPERCOATING and high tensile rockfall protection netting DELTAX® G80/2 (secondary mesh)—total area 3500 square meters.  The installation included a variable grid pattern and fully grouted rock bolts with a diameter of 32 mm and a length of 3 meters.

Additionally, an RXE-500 rockfall barrier line of 30 meters, with a post height of 4 metes capable of absorbing impact energies up to 500 kJ, was installed in the SST-UAT area to protect both men and machinery. 

Country/Region

India

Customer

Statkraft

Protected object

Infrastructure

Corrosion protection

Galvanized

Your local contact

Kevin Coyle
 

Kevin Coyle

Regional Manager Northeast

Natural Hazards
Hydraulic Engineering
Geobrugg North America, LLC,3 Beaudet Terr,CT 06237 Columbia / United States Regional Manager Northeast

E-Mail

Saleh Feidi
 

Saleh Feidi

Natural Hazards
Hydraulic Engineering
Geobrugg North America, LLC,8921 Emperor Ave.,91775 San Gabriel, California / United States

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John Kalejta
 

John Kalejta

Natural Hazards
Hydraulic Engineering
Geobrugg North America, LLC,KS 67226 Wichita / United States

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Bob Lyne
 

Bob Lyne

Natural Hazards
Hydraulic Engineering
Geobrugg North America, LLC,8004 Windspray Drive,NC 27358 Summerfield / United States

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Pierce Runnels, Civil Engineer
   

Pierce Runnels

General Manager Geobrugg North America

Natural Hazards
Geobrugg North America, LLC,22 Centro Algodones , Civil Engineer General Manager Geobrugg North America

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Tim Shevlin
 

Tim Shevlin

Natural Hazards
Geobrugg North America, LLC,OR 97302 Salem / United States

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