COLLAPSE FAILURE IN DRY CLAY SOILS CAUSED BY TINE IMPLEMENTS

被引:6
作者
RAJARAM, G
机构
[1] United States Department of Agriculture, Midwest Area National Soil Tilth Laboratory, Ames, IA 50011
关键词
D O I
10.1016/0022-4898(90)90001-3
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The relation between forces applied to the soil and the resultant soil reaction was studied in dry clay soils under a quasi-static condition. As a tine advanced in dry compact clay soils at 5.2% dry basis moisture content, masses of soil collapsed one by one in front of the tine. The horizontal and vertical components of soil resistance measured were cyclic and in phase, with distinct peak and trough values. The peak values and trough values indicated the soil stress conditions before and immediately after each failure occurred. The frequency of failure depended on the size of the tine. The magnitude of the peak values depended on level of compaction and trough values on density of collapsed mass. The paper presents the details of observations. © 1990.
引用
收藏
页码:69 / 78
页数:10
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