制样含水率影响红黏土强度特性的微观机理研究OACSCDCSTPCD
MECHANISM ON STRENGTH CHARACTERISTIC OF LATERITIC SPECI-MENS PREPARED WITH DIFFERENT WATER CONTENTS
将制样含水率分别小于和大于最优含水率制备得到的红黏土(称为干侧样和湿侧样),通过轴平移技术(ATT)或蒸汽平衡技术(VET)施加吸力后,用非饱和土三轴仪开展同一净应力下的吸力控制三轴剪切试验,分析制样含水率对压实红黏土强度特性的影响.试验结果表明:无论是干侧样还是湿侧样,土体的峰值强度和剪胀量都随着吸力的增大而增大,且高吸力试样表现出明显的剪胀和软化力学特性.此外,相同吸力下,干侧样的峰值强度和剪胀量均大于相应湿侧样的试验结果,证实了制样含水率会…查看全部>>
The compacted lateritic specimens,prepared at dry side of optimum water content(dry specimens)and wet side of optimum water content(wet specimens)in proctor,were applied suctions by axial transform technique(ATT)or vapor equilibrium technique(VET),respectively.The specimens were firstly carried out suction-controlled shear tests under constant net stress by unsaturated triaxial apparatus,to investigate the effect of specimen prepared water content on the str…查看全部>>
金盼;陈波;胡云世
衢州学院,建筑工程学院,衢州 324000,中国衢州学院,建筑工程学院,衢州 324000,中国衢州学院,建筑工程学院,衢州 324000,中国
红黏土压实样应力-应变曲线峰值强度孔径分布曲线
Lateritic clayCompacted specimensStress-strain curvesPeak strengthPore size distribution
《工程地质学报》 2023 (6)
1811-1819,9
浙江省自然科学基金项目(资助号:LZY21D020001),衢州市重点科技攻关项目(资助号:2022k93,2023k220).This research is supported by Zhejiang Provincial Natural Science Foundation of China(Grant No.LZY21D020001)and Key Science and Technolo-gy Projects of Quzhou(Grant Nos.2022k93,2023k220).
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