摘要
我国将要建设的西安南京铁路为新建I级客货共线时速200km铁路,其中合肥南京段占线路总长的84.5%,全线普遍存在第四系中更新统(AlQ)3粘土(俗称下蜀粘土),具有中、弱膨胀性,不能直接使用,必须进行改良。为保证路基结构的强度、刚度、稳定性和耐久性,在合宁试验段对膨胀土改良施工工艺进行了研究。
Railway Xi＇an-Nanjing that will be constructed in our country is the top-grade cargo and passenger line with a speed of 200km per hour. Section Hefei-Nanjing makes up 84.5% of the total length, above which lies the quaternary red clay featured by mild or petty expansibility that must be improved before being put into subgade. In order to ensure the strength, rigidity, stability and durability of railway subgrade, the improving process of the expansive soil in the experimental section is studied.
出处
《安徽建筑》
2008年第5期99-99,114,共2页
Anhui Architecture
关键词
膨胀土
改良
施工工艺
expansive soft
improvement
construction process
