滨海盐渍土作公路路基填料试验研究

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。

Influences on unconfined compressive strength of stabilized coastal saline soils

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.