【摘要】 唐港高速公路沿线地下水位较高 ,大多路段为粉质低液限砂土及粉砂 ,只有少量路段为粘性土。针对不同的土质 ,采用不同的加固方案 ,以便使基层或底基层 ,具有良好的力学性能。然而在温差较大的唐山地区 ,各类稳定土材料的温缩性能直接影响到建成公路的使用性能。因此 ,本研究分析测定了水泥加固类及生石灰粉煤灰加固类半刚性材料的温缩系数 ,并研究探讨了各类材料的温缩特点及影响因素。更多还原

【Abstract】 The underground waterlevel is quite high along the line of Tang-Gang Expressway.In this region subgrade meterials are mainly sylt sandsoil of low liquid limit and siltsand,and clay soil in few sections. The different stabiliaing methods are used on different dinds of soil so that execllent mechanical performanec can be provided in base course or subbase course.However temperature varies a great deal in Tangshan region.The peration performanec of the highway is influence by temperature contractibility of stabilized soil.Therefore the tenperature contraction coefficient of soil stabilized with cement and lime flyash are measured.The characteristic and influence factor of temperature contractibility are analysed. 〔更多还原