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A rockfall protection embankment is an earthwork built in elevation with respect to the ground to intercept falling rock fragments before elements at risk such as roads and buildings are reached. This term is widely used in the rockfall community but the terms bunds and walls are sometimes used as alternatives.
The two main design characterictis of rockfall barriers are their height and their impact strength. Similarly as for other passive rockfall protection structures (e.g. embankments), the barrier required height is defined based on rock fragments passing heights obtained from trajectory simulations. These simulations also provide the kinetic ...
California Bank and Shore Rock Slope Protection Design, CABS (Racin et al., 2000) [6] Provides nine weight classes based on the minimum allowable W 50. Classes range from “light” (200 lbs), to 8 tonnes. Also provides three classes of “backing” stone, all having a minimum allowable W 50 less than 75 lbs.
H s is the design significant wave height at the toe of the structure (m) Δ is the dimensionless relative buoyant density of rock, i.e. (ρ r / ρ w - 1) = around 1.58 for granite in sea water; ρ r and ρ w are the densities of rock and (sea)water (kg/m 3) D n50 is the nominal median diameter of armor blocks = (W 50 /ρ r) 1/3 (m)
Successful design of the slope requires geological information and site characteristics, e.g. properties of soil/rock mass, slope geometry, groundwater conditions, alternation of materials by faulting, joint or discontinuity systems, movements and tension in joints, earthquake activity etc. [4] [5] The presence of water has a detrimental effect ...
[1] [2] [3] [5] Q-slope has also been applied in slopes with interbedded strata, [6] in faulted rocks and fault zones, [7] and in alpine and Arctic environments, which are susceptible to freeze-thaw and ice wedging. [8] Rock slope design techniques have been derived using Q-slope and geophysical survey data, primarily based on V p (P-wave ...
α = breakwater slope P = notional permeability S = Damage number N = number of waves in the storm ξ m = the Iribarren number calculated with the Tm. For design purposes, for the coefficient c p the value of 5,2 and for c s the value 0,87 is recommended. [2] Notional permeability according to Van der Meer (1988) The value of P can be read from ...
Steel wire mesh may be used for soil and rock slope stabilization. After leveling, the surface is covered by a steel-wire mesh, which is fastened to the slope and tensioned. It is a cost-effective approach. Wicker or brushwood mats made of vegetable material. Very long and flexible willow branches can be used, which are then covered with infill ...