泥石流固相在浆体中沉降规律研究  

Study on the Sedimentation Rule of the Particles in Debris Flow

作　　者：陈洪凯[1] 舒小红[1] 

机构地区：[1]重庆交通大学岩土工程研究所,重庆400074

出　　处：《重庆建筑大学学报》2007年第4期99-103,共5页Journal of Chongqing Jianzhu University

基　　金：高校博士点基金(20060618001);交通部人才基金(95050508)

摘　　要：基于大量试验观察及数据分析研究,揭示了泥石流固相在浆体中的沉降规律。研究影响固相在泥石流浆体中沉降的三个主要因素,分析了各个因素影响泥石流固相沉降的根本原因。泥石流固相在浆体中沉降过程中可分为三个阶段,首先为初始阶段,继而为快速沉降阶段,最后呈减速沉积阶段,并对各个阶段的沉降过程作了详细的分析。其中浆体粘度、固相质量和附加孔隙压力对固相在泥石流浆体中的沉降规律存在着至关重要的影响。In this paper, according to the study on a great number of experiments and data analyses, the sedimentation rule of solid particles in debris flow is set up. Three main factors that influence the particle sedimentation in debris flow were studied; the basic reasons to influence the particle sedimentation were analyzed. The particle sedimentation in debris flow could be divided into three stages,i, e. the starting stage, the quick sedimentation stage and the accumulation stage,and detailed analysis on the sedimentation process each stage was made. The liquid viscosity, particle quality and additional water pressure have an important role on the sedimentation rule of the particle in debris flow.

关 键 词：泥石流 固相 沉降规律 

分 类 号：P642.23[天文地球—工程地质学]