Cohesionless gap-graded soils are susceptible to volumetric internal erosion, also called suffusion, under the action of seepage flow through porous material. More precisely, during suffusion three processes simultaneously take place: detachment, transport and possible filtration fine particles. This paper proposes a new relationship describe development based on energy approach. The proposed i...

The service environment of concrete in the marine is harsh, and demands regarding durability have increased. Marine harbor wharf areas suffers from combined effect fatigue load, dry–wet cycles, Cl− erosion, which can result spalling surface, corrosion internal reinforcement, even damage. This paper reviews recent research results on reinforced (RC) under erosion. We further assess variation tra...

This study determines the effects of leakage attributed to conduit defects on failure behavior downstream slope a homogeneous reservoir. To analyze mechanism, model experiments and three-dimensional deformation–seepage analysis were conducted based shape, pore-water pressure, hydraulic gradient, settlement, results compared with changes in water storage capacity failed reservoir owing defects. ...

A 43years old man presented with 6 month history of intermittent right hemicranial headache and ipsilateral conductive hearingloss. The patient had no historyof head trauma. The MRI demonstrated a large and expansile right petrous apex lesion hyper intense on both T1and T2-weighted scans, without diffusion restriction or internal contrast enhancement. The CT scan showed and expansile and lyticl...

In the mid‐1980s, advances in understanding the mechanics of the fold‐and‐thrust belts that flank many collisional mountain ranges set the stage for a fundamental change in our appreciation of the role of erosion in the tectonic evolution of mountain ranges. A combination of sandbox experiments, analytical treatments of stress state and field observations showed that fold‐and‐thrust belts form ...

Fig. 1 : Plain frontal chest radiographminimal cardiomegaly with notching and erosion of posterior lower rib margins (arrows). Fig. 2 : CT Aortogram showing non-opacifi cation (arrow) of aorta just distal to origin of a dilated left subclavian artery suggestive of coarctation. Fig. 3 : Dilated tortuous internal mammary and intercostal arteries on CT aortogram. Fig. 4 : Aorta distal to coarctati...