EXPERIMENTAL STUDY ON THE INFLUENCE OF WINDPROOF NETS ON THE WIND LOAD ON THE SURFACE OF COAL SHEDS

Based on a closed coal shed project of a power plant, the influence of windproof nets on the wind load distribution characteristics on the surface of the coal shed was investigated through a rigid model pressure test, and analyzed the role of height and porosity. The results show that the distribution law of the surface shape coefficient of the coal shed behind the windproof net presents an obvious gradient property, and the structure is mainly affected by negative pressures. The sheltering effect of the windproof net on the coal shed changes the most unfavorable position of the coal shed, and shows different effects in different areas of the coal shed surface, but generally reduces the surface wind load. When the height of the windbreak is 0.66H and the porosity is 20 %, the weakening effect on the shape coefficient of the coal shed is optimal.