Protection contre les chutes de pierres

Transcription

1 Protection contre les chutes de pierres TREK ROUTE TO SHRI MATA VAISHNO DEVI SHRINE (1), IN

2 TREK ROUTE TO SHRI MATA VAISHNO DEVI SHRINE (1) Protection contre les chutes de pierres Projet Trek route to Shri Mata Vaishno Devi Shrine (1) Rue Katra-Reasi Rd, Bhavan Code postal Ville Katra, Jammu & Kashmir Pays / région Inde Année d installation 2016 Client Ingénierie Entrepreneur Shri Mata Vaishno Devi Shrine Board Tehri Hydro Development Corporation Ltd Pioneer Foundation Engineers Pvt Ltd Situation de départ There had been several cases of rockfall and landslides in the trek route of the Holy Shrine of Mata Vaishno Devi. Therefore, the Shrine Board decided to actively stabilize the 75º and higher steep slope, up to a maximum height of 70 m in this section. A protective measure had to be selected to stabilize the exposed cutting against superficial instabilities, tilting as well as sliding of individual blocks and rockfalls. Description The flexible slope stabilization system consists of TECCO G65/3 high-tensile steel wire mesh and QUAROX rolled cable net, system spike plates and soil nails has been selected. Spike plates which match the load capacity of the mesh serve to fix the mesh to soil or rock nails. By tensioning these nails, and recessing the spike plates into the ground, the mesh is adequately tensioned to ensure it follows the surface contours. Based on the survey results, the authorities also decided to apply a rockfall protection barriers from Geobrugg. With its ring nets made of high-tensile steel wire the barrier design has been tested and approved to absorb impact energies of up to 8000 kj. A total number of 15 barriers were installed in different locations with energy absorption capacity ranging from 3000 kj up to 8000 kj. See also our slope project Trek route to Shri Mata Vaishno Devi Shrine (2) Objet protégé Systèmes Autres applications installées Route/Rue, Bâtiment, Infrastructure touristique, Infrastructure, Architecture, D'autres GBE-3000A, RXE-5000, RXE-8000 Stabilisation des pentes Protection anticorrosion Galvanized, GEOBRUGG SUPERCOATING Classe d'énergie (kj) 3000 kj, 5000 kj, 8000 kj Protection contre les chutes de pierres Trek route to Shri Mata Vaishno Devi Shrine (1), IN 2/8

3 Hauteur du système Longueur du système 5.0 m, 6.0 m, 7.0 m, 9.0 m 25 m m Protection contre les chutes de pierres Trek route to Shri Mata Vaishno Devi Shrine (1), IN 3/8

4 GBE-3000A rockfall barrier protecting pilgrims' route to Shri Mata Vaishno Devi Shrine Target of all pilgrims - Holy Cave located in the folds of the three peaked mountain named Trikuta Existing, stiff rockfall canopies were not able to withstand rockfalls existing along the trek and had to be extra protected by rockfall barriers Protection contre les chutes de pierres Trek route to Shri Mata Vaishno Devi Shrine (1), IN 4/8

5 Density of rockfalls was quite big, here smaller ones The area was constantly endangered by rockfalls GBE-3000A and RXE-8000 rockfall barriers during installation - visible the route trek below, adjacent to steep rock face Protection contre les chutes de pierres Trek route to Shri Mata Vaishno Devi Shrine (1), IN 5/8

6 Installation of the RXE-8000 rockfall barrier in progress RXE-8000 rockfall barrier after installation protecting the trek route below from the biggest rockfalls RXE-5000 rockfall barrier after installation protecting the trek route below Protection contre les chutes de pierres Trek route to Shri Mata Vaishno Devi Shrine (1), IN 6/8

7 Closer look on GBE-3000A rockfall barrier after installation GBE-3000A after installation - visible smaller rockfalls already stopped by the barrier Some areas required extra active slope stabilization using high-tensile steel wire mesh TECCO G65/3 and QUAROX net Protection contre les chutes de pierres Trek route to Shri Mata Vaishno Devi Shrine (1), IN 7/8

8 GBE-3000A rockfall barriers protecting the route trek below, adjacent to steep rock face Pour toute question, contactez votre spécialiste Geobrugg le plus proche Alexander Bittendorfer Project Manager Germany South Téléphone Mobile Geobrugg A company of the BRUGG Group Certified to ISO 9001 Protection contre les chutes de pierres Trek route to Shri Mata Vaishno Devi Shrine (1), IN 8/8