吉林水利
吉林水利
길림수리
JI LIN WATER RESOURCES
2014年
5期
6-8
,共3页
水泥复合土%三轴试验%应力应变曲线%破坏特征
水泥複閤土%三軸試驗%應力應變麯線%破壞特徵
수니복합토%삼축시험%응력응변곡선%파배특정
cement composite soil%triaxial test%Stress-strain curves%damage characteristics
本试验以水泥和粘土为主要原料，将粉煤灰和玻璃纤维掺入到水泥土中，通过室内三轴试验，得到水泥复合土的应力应变曲线。通过对实测的应力应变曲线分析可知：水泥复合土的应力应变曲线呈软化型，存在明显的应力峰值点，可将其分为：弹性变形区、塑性变形发展区、应力衰减区、残余强度区四个发展阶段。与此同时，通过对水泥复合土试件破坏过程的分析发现：水泥复合土的破坏形式为脆性剪切破坏和胀裂破坏。
本試驗以水泥和粘土為主要原料，將粉煤灰和玻璃纖維摻入到水泥土中，通過室內三軸試驗，得到水泥複閤土的應力應變麯線。通過對實測的應力應變麯線分析可知：水泥複閤土的應力應變麯線呈軟化型，存在明顯的應力峰值點，可將其分為：彈性變形區、塑性變形髮展區、應力衰減區、殘餘彊度區四箇髮展階段。與此同時，通過對水泥複閤土試件破壞過程的分析髮現：水泥複閤土的破壞形式為脆性剪切破壞和脹裂破壞。
본시험이수니화점토위주요원료，장분매회화파리섬유참입도수니토중，통과실내삼축시험，득도수니복합토적응력응변곡선。통과대실측적응력응변곡선분석가지：수니복합토적응력응변곡선정연화형，존재명현적응력봉치점，가장기분위：탄성변형구、소성변형발전구、응력쇠감구、잔여강도구사개발전계단。여차동시，통과대수니복합토시건파배과정적분석발현：수니복합토적파배형식위취성전절파배화창렬파배。
In this experiment,the main raw material of cement and clay,fly ash cement and glass fibers incor-porated into the soil,through laboratory triaxial tests,the stress-strain curve obtained cement composite soil. Through the measured stress-strain curve analysis:Stress-strain curves showed a softening of cement compos-ite soil type,there is an obvious peak stress points,which can be divided into:elastic deformation zones,the development zone of plastic deformation ,stress relaxation area ,residual strength zone four stages of develop-ment.At the same time ,through the cement composite soil specimen failure process analysis found:cement composite soil damage in the form of brittle shear failure and bursting destruction .
