Rock Slope Stability of Anchored Sheeting Structures, Embankments and Earth Cuts

Our slope investigation, design, implementation and performance monitoring are unparalleled. Our analysis focuses on the rock slope stability of layered soil slopes. We will generally study the rock slope stability of anchored sheeting structures, embankments and earth cuts.

 

Here are some of the rock slope stability services we offer:

 

•           Wire Mesh

•           Retaining Walls

•           Soil Nailing

•           Rock Bolting

 

Teico wire netting system is a key protection technique for achieving long-term slope stability. The wire mesh system has been applied in the geotechnical field across the world to minimize the geological effects of rock slope stability movement due to both man-made and natural phenomenon.

 

The highly corrosion-resistant wire mesh system follows international design standards for rock slope protection. The wire mesh netting is secured at the crest and foot of the slope, the falling debris is encapsulated behind the mesh.  Additional improvements have produced an anchor plate that optimizes force transfer from the mesh to anchors. When compared with traditional rock stability construction methods, the wire mesh system overcomes many rigid construction defects, shortens the duration of construction and is more economical. The system is composed of high-strength tensioned stainless steel wire, bolts, anchors and other installation components.

 

Retaining walls are an ancient method of ground geotechnical engineering, with design and structural concepts that remain valuable today. Retaining walls are structures built for the purpose of neutralizing the effects of unstable slopes holding back rock or soil from buildings, roads or structures. Retaining walls avoid erosion and down slope movement providing support for near-vertical or vertical grade changes. Retaining walls can be made of several materials including wood, natural stone, reinforced cinder block, and concrete block systems.

 

A key consideration when designing and installing retaining walls is gravity. Gravity creates lateral earth pressure behind the wall making the angle of internal friction, the cohesive strength of the retained material and the direction and magnitude of movement fundamental criteria to be studied.

 

Extreme weather, seismic activity, and changes in uphill activities can impair the effectiveness of retaining walls. Furthermore, in many cases drainage systems are also needed to disperse any groundwater behind the wall so as to not cause additional horizontal hydrostatic pressure. Retaining walls must be carefully designed to suit the ground conditions, topography and aesthetic requirements of each individual site.

 

Soil nailing is an economical technique for constructing retaining walls from the top down as well as stabilizing slopes. When applying the soil nailing process relatively small, closely spaced steel tendons are drilled and grouted into the soil. The soil nails significantly increase the apparent cohesion of the soil through their ability to carry tensile loads. A construction facing is also usually required, and is typically shot Crete reinforced by welded wire mesh. A shot Crete facing is typically applied, although more astatically pleasing options such as precast panels, cast-in-place concrete or revegetation are available for permanent structures. Typical applications of soil nailing are in the construction of new slopes in cuttings and remedial works for unstable slopes. Soil nailing can be used in any natural ground.

 

Rock bolting is a primary means of rock reinforcement used to stabilize rock. Rock bolts are always installed in a pattern, the design of which depends on the type of excavation. They are arranged in such a way as to transfer the load from the exterior of the rock, to the stronger interior part of the rock. Rock bolting reinforcement and support is maximized with the addition of a wire meshing system and shot Crete or revegetation. Teico has been using the combination of rock bolting and wire meshing for civil engineering projects in mountainous terrains with quite some success.

 

Source: http://www.geotechnical-engineer.com/rock-slope-stability.html

About the Author

Teico Overseas is a well-known leader in the field of highly specialized geotechnical works. In regards to problematic or challenging projects, Teico Overseas has an experienced technical staff made up of engineers and geologists that develop analysis and calculate the stability of rock masses. On the basis of their results, the optimal system of protection is designed. Both active and passive measures are taken in order to prevent loose and falling rock masses: metallic nets both simple and reinforced, wire rope panels, wire rope wrappings, precise nailing, bar and rod ties, rock fall barriers.

 

Operating in a field that is both complex and delicate, nothing can be left to chance. Only highly qualified specialization and great care of human resources guarantee professionalism and safety. For this reason Teico Overseas has concentrated on the quality of its employees. Its staff is composed of expert rock climbers that have intricate knowledge of alpine techniques and always operate with the global standard safety systems.