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3SGEOTECH® has developed a wide range of rockfall protection kits, designed by using a rational calculation model based on the superposition of consumed energy by deformation of all their components. This model of behavior has been validated in Lucerna (Switzerland) through different full scale tests made in a certified test area of Beckenried.

Properties of 3SGEOTECH® rockfall protection kits

  • · Sequential and controlled energy dissipation.
  • · System with known and controlled deformation.
  • · High energy absorption capacity by using the new 3S-DPL® brakes.
  • · Multi-impact systems with low maintenance requirements.
  • · No permeability of the system due to the installation of the mesh type 3STUTOR® Plus wire mesh as main or secondary catchment surface, which is continuously fixed to the upper cable.
  • · High level of certification of all its components.
  • · Easy to install due to their modulate design, with low number of components.
  • · High corrosion protection.

3S-DEL® Longitudinal Elastic Brakes

Longitudinal elastic brakes type 3S-DEL® have been developed by Dr. Eng. Juan Antonio Torres Vila in collaboration with Transport Department belongs to the Cantabria University. These energy dissipaters have been successfully used as component of rockfall protection kits for over 25 years.

The installation of these elastic brakes inside the cabling system allows increasing elasticity and deformability of the rockfall protection system that means an increase of energy absorption capacity in elastic conditions.

disparador-del

New Longitudinal Plastic Brakes type 3S-DPL®

3SGEOTECH® has designed, developed and patented the new longitudinal plastic energy dissipater type 3S-DPL® characterized by:

  • · Constant activation load.
  • · High braking efficiency with horizontal graphic concerning the energy dissipation.
  • · Unique reversible brakes in the market, which can be used in multiple impacts due to they are reusable after a rockfall event that reaches the design energy.
  • · High efficiency, low cost and low maintenance braking system.
  • · Stepped range of braking energy.
Energy dissipation capacity 3S-DPL® Plastic Brake
3S-DPL® 1 3S-DPL® 2 3S-DPL® 3
60 kJ/m 100 kJ/m 140 kJ/m

disparador-dpl

3SGEOTECH® rockfall barriers with elastic behavior

The energy dissipation capacity of the system is obtained by addition of sequential performance of braking elements in elastic deformation of their components, the reaction strengths and the inertial mass of the system. These barriers are designed according to requirement of European standard EOTA (ETAG 27).

3SGEOTECH® rockfall barrier with elastic behavior
Type Classification according to EOTA (ETAG 27) Catchment surface Secondary mesh Type of energy dissipater installed
Class Category
3S - 100 E Class 0
(MEL = 100 kJ)
Category A
(HResidual ≥ 50%)
Mesh 3STUTOR® Plus 100/4,0 Not necessary Not necessary
3S - 150 E Class 0
(MEL = 150 kJ)
Mesh 3STUTOR® Plus 100/4,5 Not necessary 3S-DEL® 4/3
3S - 250 E Class 1
(MEL = 250 kJ)
Mesh 3STUTOR® Plus 90/4,5 Not necessary 3S-DEL® 5/4
3S - 250 E Class 1
(MEL = 250 kJ)
3SRINGNET® 7/3/350 3STUTOR® Plus 100/3,4 Not necessary
3S - 500 E Class 2
(MEL = 500 kJ)
3SRINGNET® 7/4/350 3STUTOR® Plus 100/3,4 Not necessary

3SGEOTECH® rockfall barriers with elastoplastic behavior

The energy dissipation capacity of the system is obtained by addition of sequential performance of braking elements in elastic deformation of their components, the reaction strengths, the inertial mass of the system and energy consumed by 3S-DPL® brakes. These barriers are designed according to requirement of European standard EOTA (ETAG 27).

3SGEOTECH® rockfall barrier with elastoplastic behavior
Type Classification according to EOTA (ETAG 27) Catchment surface Secondary mesh Type of energy dissipater installed
Class Category
3S - 500 EP Class 2
(MEL = 500 kJ)
Category A
(HResidual ≥ 50%)
Net 3SRINGNET® 7/3/350 3STUTOR® Plus 100/3,4 3S-DPL® 1
3S - 1.000 EP Class 3
(MEL = 1.000 kJ)
Net 3SRINGNET® 7/4/350 ó
Net 3SGEOFLEX® 600/14
3S-DPL® 1 & 2
3S - 1.500 EP Class 3
(MEL = 1.500 kJ)
Net 3SRINGNET® 7/4/350 ó
Net 3SGEOFLEX® 600/14
3STUTOR® Plus 100/4,0 3S-DPL® 2
3S - 2.000 EP Class 3
(MEL = 2.000 kJ)
Net 3SRINGNET® 19/3/350 ó
Net 3SGEOFLEX® 600/16
3S-DPL® 2 & 3
3S - 3.000 EP Class 3
(MEL = 3.000 kJ)
Net 3SRINGNET® 19/4/420 ó
Net 3SGEOFLEX® 500/18
3STUTOR® Plus 100/4,5 3S-DPL® 3

3SGEOTECH® - HEAD OFFICE

Street Marie Curie, 28-30
Poligono Ind. Nueva Montaña
E-39011 Santander (Cantabria), Spain
Mail: info@3sgeotech.com
Phone: +34 942 270 441
Fax: +34 942 277 516
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