【摘要】 <正> 积雪在外力荷载作用下的压缩变形是其重要力学性质之一。研究它,不仅对确定积雪内部的力学强度(如推导潜在内聚力,积雪内部的结构变化性能等)有很重要的意义,而且在实际建筑工程中(如积雪上部和内部的建筑、雪害防治工程、道路积雪和飞机场积雪的清除等诸方面)有更重要的价值。近两年来,我们在站区(E84°29’,N43°29’)对四种不同类型的积雪,通过123个雪更多还原

【Abstract】 The study on the characteristics of snow compression is very importantin determining the mechanics intensity of snow, and also has great valuein the utilization of construction. The author made the compressiveexperiment in the conditions of different loads for 67 groups and 123 snowsamplings with the aid of WG-2 portable Consolidometer. Using weightfor load and controlling by dial meter, the maximum error less than 0.01mmis obtained. The result shows that the snow appears elasticity, elastoplasticdeformation and the changes of plastic sinking under the action of externalforces. The compressive deformation is determined by the forcing duration.Through the calculation and analysis, we see that the variations betweenthe compressive sinking and loading are logarithm relations. The varioussnow has different extream values in the effection of compression under thegradual action of negative temperature. The snow with small density andlarge porosity has high extream value in temperature. Otherwise, has lowextream value.更多还原