| 水泥固化锌污染黏土的压缩特性试验研究 |
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| 引用本文： | 魏明俐,杜延军,张帆.水泥固化锌污染黏土的压缩特性试验研究[J].土木工程学报,2011(Z2). |
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| 作者姓名： | 魏明俐 杜延军 张帆 |
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| 作者单位： | 东南大学岩土工程研究所; |
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| 基金项目： | 国家自然科学基金(50878052,40972173); 江苏省科技支撑计划(BK2010060); 教育部新世界优秀人才计划(NCET-09-0286) |
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| 摘 要： | 通过压缩试验对不同水泥掺量、不同锌离子浓度的水泥固化污染土的压缩特性进行研究,分析水泥固化锌污染土的固结屈服应力py'、压缩指数Cc与水泥掺量和锌离子浓度的关系;引入评价天然重塑黏土固有压缩特性的孔隙指数Iv,对压缩试验结果进行正规化处理,进一步探讨不同水泥掺量下不同锌离子浓度污染土的压缩特性。结果表明,锌离子浓度对于水泥固化污染土的压缩特性和结构性具有显著影响。锌离子浓度越高,水泥固化锌污染土的结构性越差,固结屈服应力py'和压缩指数Cc越低。
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| 关 键 词： | 固化稳定 压缩 固结屈服应力 |
Compressibility of cement solidified/stabilized zinc contaminated clays |
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| Wei Mingli Du Yanjun Zhang Fan.Compressibility of cement solidified/stabilized zinc contaminated clays[J].China Civil Engineering Journal,2011(Z2). |
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| Authors: | Wei Mingli Du Yanjun Zhang Fan |
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| Affiliation: | Wei Mingli Du Yanjun Zhang Fan (Institute of Geotechnical Engineering,Southeast University,Nanjing 210096,China) |
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| Abstract: | To investigate the compressibility of cement solidified/stabilized zinc contaminated clays,a series of oedometer tests were performed.The effects of zinc concentration and cement content on yield stress and compression index were investigated.The results were analyzed using the generalized state parameter void index Iv,which was used to characterize the intrinsic properties of remolded sedimentary natural clays.It is found that zinc concentration has considerable influence on the structure of cement solidif... |
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| Keywords: | solidification/stabilization compression yield stress |
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