单轴拉伸法测定土的抗拉强度试验研究  

EXPERIMENTAL STUDY ON TENSILE STRENGTH OF SOIL USING UNIAXIAL TENSION

作　　者：陆志锋[1,2] 赵秀峰[1,2] 曹景洋[1,2] 罗惠芬[1,2] 范建[1,2] 陈帮建[1,2] 

机构地区：[1]国土资源部地裂缝地质灾害重点实验室,江苏南京210018 [2]国土资源部南京矿产资源监督检测中心,江苏南京210018

出　　处：《安徽地质》2015年第2期153-155,共3页Geology of Anhui

摘　　要：采用单轴拉伸法研究了影响土的抗拉强度测试方法的因素,探讨了加荷速度、样品直径、高径比对土的抗拉强度测试值的影响,试验结果表明,样品直径对土的抗拉强度测试结果影响不大,加荷速度和高径比是影响土的抗拉强度的测试结果的重要因素。给出了单轴拉伸法测试土的抗拉强度的加荷速度和高径比的建议值。This paper studied factors affecting measurement of tensile strength of soil using uniaxial tension, discussed the effect of loading speed, sample diameter and height-diameter ratio on measurements of tensile strength, and the results indicated that sample diameter has little to do with tensile strength measurements, and loading speed and height-diameter ratio play a major role in affecting the measurements. Proposed values for loading speed and height-diameter ratio were given for measuring tensile strength of soil using uniaxial tension.

关 键 词：单轴拉伸法 抗拉强度 加荷速度 高径比 

分 类 号：TU41[建筑科学—岩土工程]