风积沙压缩特性的影响因素试验研究  

Test Study on Factors Affecting Compressibility of Aeolian Sand

作　　者：马涛 王海峰 

机构地区：[1]铜川市公路工程建设指挥部办公室,陕西铜川727031 [2]陕西省交通厅基本建设工程质量监督站,西安710068

出　　处：《路基工程》2015年第3期140-143,共4页Subgrade Engineering

摘　　要：为探究干密度、含水率及含泥量三因素对风积沙压缩特性的影响,通过单轴固结仪,分别对不同初始干密度、含水率及含泥量的风积沙试样进行室内侧限压缩试验,进而得到风积沙压缩模量和压缩系数在不同条件下的变化规律,并采用统计学方法分析各因素对风积沙压缩性能的影响。结果表明:风积沙具有低压缩性;干密度、含水率及含泥量三因素对风积沙的压缩性能有非常显著的影响;干密度和含水率两因素之间存在交互作用,这一作用对试验指标的影响也非常显著。In order to explore the effect of dry density, moisture and mud contents on compressibility ot aeolian sand, indoor confined compression tests, by means of uniaxial consolidometer, were carried out on the aeolian sand specimen with different initial dry density and moisture and mud contents, respectively ; through which both the compression modulus of aeolian sand and the laws how the compression coefficients change under the different conditions, were obtained; at the same time, the significance of the effect of each factor affecting the compressibility herein was analyzed through statistics. The results show that aeolian sand is the soil with low compressibility, and dry density, moisture and mud contents has significant impact on its compressibility; the dry density interacts with the moisture content, leading to obvious effect on the test indices as well.

关 键 词：风积沙 压缩特性 含水率 干密度 含泥量 

分 类 号：U416.166[交通运输工程—道路与铁道工程]