湿地多年冻土路基EPS板应用试验  

Tests of EPS Boards for Subgrade on Wetland Frozen Soil

作　　者：刘文白[1,2] 周健[1] 赵文祥 苏跃宏 林敏[4] 周庆 

机构地区：[1]同济大学 [2]上海海运学院交通运输学院,上海200135 [3]内蒙古呼伦贝尔市交通局 [4]内蒙古工业大学建筑工程学院

出　　处：《工程勘察》2003年第4期1-4,共4页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金资助项目 (№ 5 996 80 0 1);内蒙古自治区交通厅科研项目资助

摘　　要：通过调查 30 1国道博～牙段的湿地冻土环境 ,对湿地多年冻土路段 ,提出了 6种加强和改良地基路基的处理方案 ,测试了地温、地表沉降、孔隙水压力和土层分层沉降及EPS材料的特性 ,研究了铺设EPS板对地温的影响。结果表明EPS板可以减少地表向深层的热流量、减少地下多年冻土层上限的下移、减缓多年冻土层的消融 。Through the examination of the environment of wetland perennially frozen soil in the Bo\|Ya section of national highway 301 six types of soil treatment methods have been presented.The earth temperature,surface settlement, pore water pressure, the settlement in layers and the characteristic of EPS material are tested, and the effect of EPS boards on earth temperature is also studied. It is shown that the heat flow from earth surface to deep layer can be lower by using EPS boards. The go\|down movement of the upper limit of perennially frozen soil layer can be reduced, and the frost boil of the soil can be decreased.

关 键 词：湿地 冻土 EPS 路基处理 地表沉降 孔隙水压力 

分 类 号：TU445[建筑科学—岩土工程]