围压与含水率对小麦堆弹性模量影响的实验研究  

EXPERIMENTAL RESEARCH ON THE INFLUENCE OF THE CONFINING PRESSURE AND THE MOISTURE CONTENT ON THE ELASTIC MODULUS OF WHEAT PILE

作　　者：单贺年[1] 严晓婕[1] 程绪铎[1] 

机构地区：[1]南京财经大学食品科学与工程学院,210046

出　　处：《粮食储藏》2013年第6期33-37,共5页Grain Storage

基　　金：江苏省教育厅自然科学基金项目(项目编号:11KJD550001)

摘　　要：使用应变控制式三轴仪,测定了不同围压和含水率条件下的小麦堆弹性模量,并分析了围压与含水率对小麦堆弹性模量的影响。实验结果表明:同一含水率下,小麦堆(含水率为11.88%w.b、12.91%w.b、14.40%w.b、15.40%w.b、16.85%w.b)弹性模量随着围压(50kPa^200kPa)增大而增大;同一围压下,小麦堆的弹性模量随着水分的增大而减小。In this parer, elastic modulus of wheat pile are measured by the strain control type three triaxial appa- ratus. Elastic modulus are determined in different confining pressures and different moisture contents. The influence of the confining pressure and the moisture content on the Elastic modulus and bulk stain modulus of wheat pile is analyzed. The results show that in the same moisture content, as confining pressure（50- 200kPa） increases, the elastic modulus of wheat pile（Moisture contents are 11.88 % w. b, 12.91 % w. b, 14. 40%w. b, 15.40% w. b andl6.85%w. b） increases; in the same confining pressure, as moisture content of wheat pile increases, the elastic modulus decreases.

关 键 词：小麦堆 弹性模量 围压 含水率 

分 类 号：S512.1[农业科学—作物学]