广东水利水电Issue(6)：24-28,44,6.
淮河入海水道堤防堆筑料在不同因素下力学特性影响试验研究
Experimental Study on the Influence of Mechanical Properties of Embankment Materials for the Huaihe River Estuary under Different Factors
张文浩 1李海洲 1孟龙1
作者信息
- 1. 江苏淮源工程建设监理有限公司,江苏 淮安 223001
- 折叠
摘要
Abstract
Indoor mechanical tests were conducted to compare the effects of soil environmental temperature,strain rate,and gravel content on the mechanical characteristics of embankment materials.Experimental studies have shown that the strength and elastic modulus of stacked material specimens are higher at lower freezing temperatures,and the confining pressure effect can improve the bearing strength of stacked materials,but it does not change the influence of freezing temperature on the stress-strain characteristics of the specimens.The higher the strain rate obtained,the higher the strength of the stacked material.For every increase of one order of magnitude in the rate,the strength can be increased by 24.4%and 23.8%under confining pressures of 100kPa and 300kPa.The strain rate will change the strain change of the specimen,and the residual stress in the residual stress section will decrease slowly at low rates.The higher the gravel content,the lower the strength of the sample,which is related to the presence of solid ice under freezing;Although the gravel content has a significant impact on the stress-strain of coarse-grained soil,the difference is small before the loading stress of 140.4kPa,and significant in the peak stress and residual stress sections.The difference in gravel content has a greater impact on the yield plasticity of the stacked material.The paper can provide experimental reference for studying the influencing factors of mechanical characteristics of coarse-grained soil in construction materials.关键词
淮河入海水道/堆筑料/力学/试验Key words
Huai River estuary/Stacking materials/Mechanics/Experiment分类
建筑与水利引用本文复制引用
张文浩,李海洲,孟龙..淮河入海水道堤防堆筑料在不同因素下力学特性影响试验研究[J].广东水利水电,2024,(6):24-28,44,6.
