The Rule Of The Surface Deformation And Data Processing To Thick Loose And Deep Mining

As the economy of our country has developed rapidly, the demand of coal will increase gradually increasing intensity, the surface movement and destruction has became more severe. Over the years Scholars has researched more depth study on ground movement and deformation theory and a variety of geological and mining conditions of the ground movement and deformation and surface movement and deformation prediction method, but the theory that ground movement and deformation of the movement and deformation prediction method under the thick layer of loose has not deeply study enough .This paper has worked over the surface movement rule and undermine the law of the land for the thick loose layer through set up base stations in Tunliu and Sima Luan mines,? external trade data by observation and data processing within the industry ,and made loose layer thickness as a parameter applied to the estimated probability integration method, amended he probability of traditional integration method, compared with measured values , obtained good results .This paper has achieved the following conclusions:(1) Under Thick alluvium, edge of the basin subsidence in the uphill sinking value even if small, will have a greater level of mobility,the turning point on sink basin in is above the top rather than the mined area, Mobile basin are relatively large, horizontal movement is also a larger amount of surface subsidence is also greater than the similar geological conditions under thick alluvial mining of non-surface subsidence.(2) Between the thickness of alluvial and The thickness of bedrock is different by the ratio, the impact on ground deformation has significant changes, along of the ratio of thickness and the bedrock increases, the subsidence , affecting angle the tangent, also with boundary angle of the increase, the more serious damage on the surface and so on.(3) The probability of integration of traditional law amendment, the probability of integration to overcome the original thick alluvium in the edge of convergence too fast, too small and so the extent of surface defects.(4) This article is developed for the thick bulk layer of mining subsidence of the software, which admit parameters of the input energy through good conditions that expected to open thick loose layer of the scope of subsidence, and protracted contour lines can be drawn sink, tilt contour, curvature contour, horizontal movement and lateral deformation contour. Software can also compared and obtained the measured values of the actual mining area mobile angle overpass achieved movement angle or result and practiced data.