硅粉水泥固化土变形特征试验研究  

Deformation Characteristics Test of Silicon Powder Cement Solidified Soil

作　　者：韩廷 王海龙[2] 

机构地区：[1]呼和浩特市建设工程施工图审查中心,内蒙古呼和浩特010018 [2]内蒙古农业大学,内蒙古呼和浩特010018

出　　处：《人民黄河》2013年第4期135-136,140,共3页Yellow River

基　　金：内蒙古自治区自然科学基金资助项目(2011BS0705);内蒙古农业大学博士基金资助项目(BJ09-24)

摘　　要：以内蒙古河套平原粉质黏土为研究对象,将硅粉作为水泥土的外掺剂,研究当水泥掺量为6%、8%,硅粉掺量为1%、2%、3%、4%、5%时,水泥固化土的变形特征。无侧限抗压强度试验结果表明:当水泥掺量相同时,适量的硅粉可以提高水泥土的强度,随着硅粉掺量的增加水泥土抗压强度呈现增长趋势,水泥土的破坏形态表现为塑性剪切破坏;随着硅粉掺量的增加,水泥土应力—应变关系曲线的应力峰值及残余强度增大;硅粉掺量相同条件下,随着水泥掺量的增加,水泥土试件的破坏应力和破坏应变均逐渐增大。By taking Inner Mongolia Hetao irrigation silty clay as a research object and the silicon powder as soil water of the additive agent, it stud- ied on soil deformation characteristics of the cement stabilized soil when the cement mixing content is 6% and 8% , silicon powder content is l%, 2% , 3% , 4% and 5% . The unconfined compressive strength test results show that： at the same cement content, the strength of soil-cement can be improved with an appropriate amount of silicon powder and enhanced with silicon powder content increasing and the soil cement failure pattern is plastic shear failure. With the increase of dosage of silicon powder, cement-soil stress-strain relationship curve of stress peak and residual strength increase. At the same silicon powder dosage, the water soil failure stress and strain can be improved by increasing the cement dosage.

关 键 词：水泥土 硅粉 无侧限抗压试验 变形特征 

分 类 号：TV431[水利工程—水工结构工程] TU528.043[建筑科学—建筑技术科学]