نتایج جستجو برای: rock foundations
تعداد نتایج: 69695 فیلتر نتایج به سال:
Keywords: Rockfill creep Particle mechanics method Water weakening Wetting–drying cycles Particle breakage Abrasion a b s t r a c t Rockfill is an important construction material for infrastructure engineering, such as dams, railways and airport foundations, which display a long-term post-construction settlement. However, the main mechanisms for rockfill creep and weathering influence still rem...
In this research work, a 3D numerical modeling technique is proposed based on the 3D particle flow code in order to investigate the failure mechanism of rock foundations. Two series of footings with different geometries and areas are considered in this work. The failure mechanism obtained is similar to that of the Terzaghi’s but there is a negligible difference in between. Lastly, one equation ...
Moisture plays a key role in rock decay the built and natural environments. Rock-cut sites are particularly vulnerable to moisture-related weathering as they carved into outcrops do not have impermeable foundations or roofs retard flow of moisture. To characterise moisture dynamics its influence on rock-cut sites, we undertook monitoring campaign using non-destructive Microwave Measurement Syst...
The tensile strength (TS) of rocks is an important parameter in the design of a variety of engineering structures such as the surface and underground mines, dam foundations, types of tunnels and excavations, and oil wells. In addition, the physical properties of a rock are intrinsic characteristics, which influence its mechanical behavior at a fundamental level. In this paper, a new approach co...
Influence of air entrainment on rock scour development and block stability in plunge pools The impingement of high-velocity water jets on plunge pools, such as it occurs downstream of spillways of high-head dams, may cause scour on the rock foundations. The scour process is the result of complex and consecutive physical phenomena. Turbulence plays a major role, especially in the jet development...
Dams on soft soils differ greatly in behavior when compared to rock foundations. Potential dam failures can occur due differential settlement. The total reduction Barnacle without PVD takes 17 years. Analysis of the use shows an increase shear strength dissipation pore stresses marked by safety figures. time needed achieve consolidation at least 80% is 180 days based finite element simulations....
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