滨海盐渍土作公路路基填料试验研究  

Influences on unconfined compressive strength of stabilized coastal saline soils

作　　者：周琦[1] 韩文峰[2] 邓安[1] 柴寿喜[2] 王沛[2] 

机构地区：[1]河海大学岩土工程研究所,江苏南京210098 [2]天津城市建设学院,天津300384

出　　处：《岩土工程学报》2006年第9期1177-1180,共4页Chinese Journal of Geotechnical Engineering

基　　金：天津市科技发展计划资助项目(05YFSYSF0030);天津市高等学校科技发展基金资助项目(20051404)

摘　　要：滨海盐渍土是一种特殊土,具有溶陷、腐蚀等不良工程特性,如何将其作为资源用于公路路基填料已成为滨海地区交通建设发展中的重要岩土工程问题之一。从滨海盐渍土的工程应用角度出发,利用石灰、水泥和新型高分子固化材料SH对其进行固化试验研究,并分析探讨了龄期、制样用水、浸泡用水和土中含盐量对固化盐渍土强度的影响及其水稳性。试验结果表明:滨海盐渍土经石灰、水泥和SH综合固化处理后,其强度和水稳性能达到规范要求,可以用作公路路基填料。Coastal saline soil is a special soil with poor engineering properties such as collapsible and corrosive. How to treat it as a resource for roadbed fillings have been one of the important geotechnical engineering topics in the highway construction of coastal areas. An experimental research on coastal saline soils stabilized by lime, cement and a new polymeric solidified material of SH was conducted. The influences of multiple factors, including curing ages, hydrated water types, soaking water types and soil salt contents, on the unconfined compressive strengths and water-related stability of stabilized saline soils were discussed. It was shown that unconfined compressive strength and water-related stability of stabilized coastal saline soils attained corresponding engineering standards and that it could be used as roadbed fillings.

关 键 词：滨海盐渍土 固化盐渍土 路基填料 新型高分子固化材料 无侧限抗压强度 水稳性 

分 类 号：TU448[建筑科学—岩土工程]