粒状碎屑溜砂坡的形成和基本特征研究(溜砂坡系列研究之一)  

Formation and basic characteristics of sand-sliding slope composed of granular clasts:Part I of sand-sliding slope series

作　　者：王成华[1] 张小刚[1] 阙云[2] 何思明[1] 

机构地区：[1]中国科学院水利部成都山地灾害与环境研究所,成都610041 [2]重庆交通学院,重庆400074

出　　处：《岩土力学》2007年第1期29-35,共7页Rock and Soil Mechanics

基　　金：国家自然科学基金;重大项目(No.90202007);中国科学院"西部之光"项目(No.10416005)资助。

摘　　要：通过现场考察和室内模型试验,研究了粒状碎屑溜砂坡形成的“三大要素”——砂源区、溜动区和形成区、粒状碎屑溜砂坡形成条件和演化规律、研究了粒状碎屑溜砂坡的散体结构特征和天然休止角。通过影响天然休止角的主要因素和显著性分析,研究了天然休止角的线性回归方程以及粒状碎屑溜砂坡的稳定性和判别标志。The formation and basic characteristics of sand-sliding slope composed of granular clasts are researched based on spot investigation and model tests. First, the effect of sand source region, sliding region and accumulation region in the development and evolution of this kind of slopes are discussed respectively. Then, the structural characteristics of loose matters which form the slopes are discussed. The influential factors and their significance analysis of natural repose angle of loose matters are concrnod and a linear regression equation is derived to determine the angle. The stability and its identification index are analysed at the end.

关 键 词：粒状碎屑溜砂坡 形成条件 天然休止角 双因素方差分析 线性回归方程 

分 类 号：P55[天文地球—构造地质学]