溜砂坡的成灾机理与防治对策  

Formative mechanism and control countermeasure of sand-sliding slope

作　　者：孙红月[1] 尚岳全[1] 吕庆[1] 

机构地区：[1]浙江大学建筑工程学院,浙江杭州310027

出　　处：《自然灾害学报》2006年第4期28-32,共5页Journal of Natural Disasters

基　　金：国家自然科学基金资助项目(40372118)

摘　　要：溜砂坡是我国西部山区公路的主要地质灾害之一。由于对溜砂坡的形成发展机理认识不足,目前采用的治理措施不能很好地解决溜砂灾害,有些工程措施反而会加大灾害程度。通过对川藏公路沿线溜砂坡的调查研究,阐述了溜砂坡的最基本特性是其生长性,分析了溜砂坡的成灾机理和危害性特点,有针对性地提出了符合西部地区经济条件的溜砂坡防治措施。Sand-sliding slope posed a main geological disaster in mountain area highway construction in west China. Due to ambiguity of formative mechanism of sand-sliding slope, countermeasure employed at present could not control the disaster, and some measures even aggravate destruction of slope. By means of investigation and study of typical sand-sliding slope along Sichuan-Tibet Highway, explained growth with time was constitutive feature of sandsliding slope, and analyzed its disaster formative mechanism. Finally, based on economic and geological condition of west China, some proper control countermeasures were suggested against disaster of sand-sliding slope.

关 键 词：溜砂坡 形成机理 抛射距离 挡墙 坡面防护 

分 类 号：P642.21[天文地球—工程地质学]