摘要
以栾川水露沟尾矿砂土为对象,通过剪切试验、压缩试验等对多个钻孔点不同深度的土样进行分析,探究不同深度尾矿砂土抗剪强度和压缩系数的变化及之间的相互影响,并且记录试验过程中各类试验细节对于试验数据误差的影响及规避方法。测试结果显示,随着深度的加深,砂土含水率增高,砂土压缩系数逐步提高。黏合度逐步增大,内摩擦角度逐步缩小。随着天然重度的增加,土体剪切模量也随之增加。
Taking the tailings sand of Shuilugou in Luanchuan as the object,the soil samples of different depths were analyzed by shear test and compression test,so as to explore the changes of shear strength and compression coefficient of tailings sand at different depths and the interaction between them.And record the influence of all kinds of test details on the test data error and the methods to avoid it.The test results show that with the deepening of depth,the water content of sand increases and the compression coefficient of sand increases gradually.The degree of adhesion increases gradually,and the angle of internal friction decreases gradually.With the increase of natural weight,the shear modulus of soil also increases.
出处
《科技创新与应用》
2023年第9期65-68,共4页
Technology Innovation and Application
关键词
栾川水露沟尾矿砂
固结快剪
压缩试验
三轴试验
剪切模量
抗剪强度
Luanchuan Shuilugou tailings
consolidation quick shear
compression test
triaxial test
shear modulus
shear strength
