EFFICIENT SHALLOW LANDSLIDE PROTECTION

Size: px

Start display at page:

Download "EFFICIENT SHALLOW LANDSLIDE PROTECTION"

Edgar Griffith
5 years ago
Views:

1 Flexible barriers made of high-tensile steel wire EFFICIENT SHALLOW LANDSLIDE PROTECTION

FOR THE MOST VALUABLE ASSET IN LIFE: OUR SAFETY. Lucerne, Switzerland: Installation by helicopter of an SL-150 shallow landslide barrier, 2014.

These additional masses of water in natural environments elevate the risk of shallow landslides, which have the potential to disrupt traffic routes and cause significant damage to buildings.

2 FOR THE MOST VALUABLE ASSET IN LIFE: OUR SAFETY. Lucerne, Switzerland: Installation by helicopter of an SL-150 shallow landslide barrier, Data from meteorologists shows us that global warming is leading to heavy precipitation occurring more frequently and to rising snow lines. These additional masses of water in natural environments elevate the risk of shallow landslides, which have the potential to disrupt traffic routes and cause significant damage to buildings. We have developed flexible shallow landslide barriers made of high-tensile steel wire netting and mesh as a means of preventing exactly this type of near surface landslide. Large-scale field tests have proven that these systems provide efficient, reliable protection against both shallow landslides and rockfalls. The barrier is the only mitigation solution of shallow landslides worldwide with a dedicated CE marking. Their lightweight structure and straightforward, cost-effective method of installation make them an outstanding practical choice. 2

3 WE CAN PROVIDE YOU WITH THE COMPLETE SAFETY PACKAGE. At your request we can take on the role of consultant, planner and even project manager. Both the solutions we offer and the quality of our customer service is valued by our customers. For us, excellent service is an integral part of every single project. No matter which phase of the project you are in, we will provide you with the support and expertise required to achieve the best results saving you both time and money. CONSULTING Alternative solutions Pros and cons Cost efficiency ALL ROUND CARE Local contact person Training and workshops Rapid inspection and proposed maintenance measures in the event of an incident PLANNING SUPPORT Terrain survey and appraisal Risk assessment and analysis Solution dimensioning Tailored planning APPROVAL Project survey Final inspection and approval Handover to client IMPLEMENTATION Staking out of the structure Specific adjustments Installation instructions on site Optional installation PRODUCTION Customer specific manufacturing, pre-assembly, and packaging Personalized delivery schedule Delivery on time and on budget Performance spectrum 3

LIGHTWEIGHT SYSTEM MADE OF HIGH-TENSILE STEEL WIRE WHEN STRAIN IS AT ITS HIGHEST.

associated with landslides on steep, unstable slopes.

saving the need to set up any additional construction sites on transportation routes.

requires only minimum construction and excavation work.

4 LIGHTWEIGHT SYSTEM MADE OF HIGH-TENSILE STEEL WIRE WHEN STRAIN IS AT ITS HIGHEST. Efficient shallow landslide protection for infrastructure Our flexible shallow landslide barriers reduce the risks associated with landslides on steep, unstable slopes. The system's low deflection levels make it possible to install the barriers close to the object requiring protection saving the need to set up any additional construction sites on transportation routes. Original slope Slope sliding layer What makes our protection systems especially economical is that the installation requires only minimum construction and excavation work. Once the barriers have been installed, there is no need for any specific object protection measures such as building reinforcement. Flexible shallow landslide barrier Components of the SL-150 barrier Bar anchor with FLEX head Retaining rope or spiral rope anchor Brake ring Post SPIDER S4-130 spiral rope net or TECCO G65/4 mesh 4 System components

5 QUALITY YOU CAN RELY ON. We offer two barrier types as a means of protecting slides that occur near the surface: The SL-150 shallow landslide barriers are designed to withstand dynamic pressure of 150 kn/m 2 and features our SPIDER spiral rope net, which works in conjunction with a secondary mesh to hold back landslides. The SL-100, meanwhile, uses the high-tensile and more closely meshed TECCO G65/4 mesh as a protective surface, this barrier is able to absorb a maximum dynamic pressure of 100 kn/m 2. What both versions have in common is that they can be installed with minimal resources, offering considerable savings in terms of cost and construction time. The components can be flown into even hard-to-reach terrain with a helicopter no heavy machinery or earthwork is necessary. But it doesn't end there: Our protective system barriers are also highly environmentally friendly, as they have minimum ecological impact on the natural surroundings and are barely visible from a distance. SL barriers provide the following features: High-tensile steel wire netting and mesh The barriers absorb both high dynamic and high static pressure at the same time. Their flexibility keeps maintenance work to a minimum, while the low deflection levels make it possible to install them close to the objects requiring protection. Highest safety standards The first and only approved (ETA) solution against shallow landslides with CE marking*. Large-scale field tests have proven that the barriers are able to hold up against several impact events involving complete filling. Rockfall protection Shallow landslide barriers are often used in exposed terrain where rockfalls may occur. Our solutions are therefore designed and tested for rockfalls with 500 kj. Simple design The barriers can be adapted to suit local conditions and their lightweight components enable cost-effective installation. Protective mesh apron A high-tensile steel mesh apron prevents material flow between the bottom support rope and the ground. It is easy to maintain, efficiently protects the barrier foundations from erosion and maintains the slope geometry during landslides. *according to EAD System properties 5

WE DON'T LEAVE SAFETY TO CHANCE. Test facility in Veltheim, Switzerland: Test of a SL-150 shallow rockfall barrier under realistic conditions, 2011.

6 WE DON'T LEAVE SAFETY TO CHANCE. Test facility in Veltheim, Switzerland: Test of a SL-150 shallow rockfall barrier under realistic conditions, Our barriers have to withstand a lot, so we reproduce the forces created by shallow landslides in extensive testing and simulation processes. Data relating to flow behavior and the dynamic impact of earth masses have enabled us to construct flexible barriers that are up to the job. We have even conducted in-depth investigations into the effects of multiple loads, such as effect of rockfalls on shallow landslide systems. Carried out in conjunction with the Swiss Federal Institute for Forest, Snow and Landscape Research WSL (ETH), these tests, replicating realistic conditions in three specially designed facilities, have proven the performance of our shallow landslide barriers. Not only that, the findings and measured data have also provided a valuable basis for developing our SHALLSLIDE dimensioning tool. 6

7 TECHNICAL DATA: SHALLOW LANDSLIDE BARRIERS WITH SPIDER S4-130 SPIRAL ROPE NET SL-150 Max. absorbable dynamic pressure* 150 kn/m 2 SHALLOW LANDSLIDE BARRIERS WITH TECCO G65/4 MESH SL-100 Max. absorbable dynamic pressure* 100 kn/m 2 *Measured pressure of triggered shallow landslides in a test under exact conditions, monitored by the WSL (ETH). Max. dynamic pressure to be absorbed [kn/m 2 ] Post spacing [m] SPECIFICATIONS SL-100 SL-150 Dynamic pressure resistance 100 kn/m kn/m 2 (also tested for rockfall impacts with 500 kj) Standard installation height 2 m 3.5 m Post spacing 5 m 8 m 5 m 8 m Post profile HEB HEB Mesh/net type TECCO G65/4 SPIDER S4-130 European Assessment Document* EAD EAD European Technical Assessment ETA 16/0448 ETA 16/0448 Certificate of constancy of performance 1301-CPR CPR-1227 We reserve the right to make technical changes. *See the relevant EAD Document at For dimensioning we provide the tool SHALLSLIDE. Technical data for SL systems 7

8 EN Geobrugg AG Aachstrasse Romanshorn Switzerland Your local Geobrugg specialist: A company of the BRUGG Group ISO 9001 certified

Rockfall Mitigation, Slope Stabilization and Surface Support

Rockfall Mitigation, Slope Stabilization and Surface Support SPECIFIC SOLUTIONS FOR THE MINING INDUSTRY SOLUTIONS TO PROTECT MINERS AND INFRASTRUCTURE. MINAX mesh offers surface support in either fall-of-ground