人民长江2016，Vol.47Issue(10)：81-85,5.DOI:10.16232/j.cnki.1001-4179.2016.10.019
黏土矿物对泥石流体屈服应力影响的实验研究
Experimental research on influence of clay minerals on yield stress of debris flow
摘要
Abstract
In general, the yielding stress of debris flow increases with the increase of sediment volumetric concentration and cohesive strength of clayey particles.4 types of clayey minerals (montmorillonite, illite, chlorite, and kaolin) are selected to study the yielding stress of debris flow by changing the sediment volumetric concentration , viscous mineral composition and clay particle weight percentage .The conclusions are:(1) the effects of clayey composition on the yielding stress of debris flow follows an descending order of montmorillonite , illite, chlorite and kaolinite; (2) sediment volumetric concentration and percentage of clayey particles percentage have an exponential relation to the yielding stress of debris flow ;(3) the yielding stress formula is ob-tained by comprehensive analysis of the relationship of sediment volumetric concentration , composition and percentage of clayey particles;(4) field investigation data proved the above mentioned results .关键词
屈服应力/黏土矿物/泥砂体积浓度/泥石流Key words
yield stress/clay minerals/sediment volumetric concentration/debris flow分类
天文与地球科学引用本文复制引用
马煜,余斌..黏土矿物对泥石流体屈服应力影响的实验研究[J].人民长江,2016,47(10):81-85,5.基金项目
国家自然科学基金资助项目（41372366），四川省教育厅科研基金 （）
