首页|EN-1固化剂对4种土壤抗剪强度的影响

EN-1固化剂对4种土壤抗剪强度的影响

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[目的]为了探讨离子固化剂路邦EN-1对黄土性土壤的固化性能.[方法]对(蝼)土、风沙土、黄绵土、黄棕壤4种土在不同固化剂掺量、养护龄期的固化进行了直剪试验.[结果]路邦EN-1固化剂可以有效提高4种土壤的抗剪强度,特别是大幅度提高了(蝼)和黄棕壤的黏聚力.[结论]固化剂的掺量并非越大越好,掺入量过多反而会降低土壤的抗剪强度.掺量为0.01%,养护时间为28 d时固化效果最佳.路邦EN-1固化剂适用于黏粒含量较大的土壤,不适用于砂粒含量较大的土壤.
Effect of EN-1 Soil Stabilizer on Soil Shear Strength
[Objective] To investigate the solidifying capability of soil stabilizer EN-1 on loess soil.[Methods] Direct shear experiments with 4 loessial soils of Lou soil,sand soil,loessal soil and yellow brown soil,with different solidifying agent content and curing age are conducted.[Results] EN-1 can improve the shear strength of the four types of soil,especially the cohesion of soil in Yangling District and Ankang City.[Conclusion] The amount of EN-1 needs to be appropriate,as excessive amount of EN-1 may reduce the shear strength of soil.The optimal amount of EN-1 is 0.01%,and the optimal curing age is 28 d.Soil stabilizer EN-1 is more suitable for soil with high clay content,rather than soil with high sand content.

soil stabilizershear strengthinternal friction anglecohesion

丁小龙、张兴昌、王建玉

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宁夏回族自治区环境保护执法局,宁夏银川750011

西北农林科技大学资源环境学院,陕西杨凌712100

中国科学院水利部水土保持研究所,水利部水土保持生态工程技术研究中心,陕西杨凌712100

固化剂 抗剪强度 内摩擦角 黏聚力

国家自然科学基金

41471437

2015

水土保持通报
中国科学院水利部水土保持研究所 水利部水土保持监测中心

水土保持通报

CSTPCDCSCD
影响因子:0.658
ISSN:1000-288X
年,卷(期):2015.35(1)
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