多年冻土物理特性的试验研究  

EXPERIMENTAL STUDY ON THE PHYSICAL PROPERTIES OF PERENNIAL FROZEN SOIL

作　　者：姜忠宇[1] 左小晗[2] 黄炜[1] 

机构地区：[1]安徽工程科技学院机械工程系,安徽芜湖241000 [2]合肥工业大学土木建筑学院,安徽合肥230009

出　　处：《低温建筑技术》2007年第5期100-102,共3页Low Temperature Architecture Technology

基　　金：安徽省高校青年教师科研资助计划项目(2006jq1154);安徽省教育厅自然科学基金研究项目(2006KJ286B)资助

摘　　要：青藏铁路的大部分区域由多年冻土组成,冻土顶层或活动层特别容易受季节冻融的影响。针对冻土段路基结构的设计要求必须对多年冻土物理力学性质、强度和变形等特征进行深入的了解。为此,进行了包括颗粒分析试验、土粒比重试验、击实试验、压缩试验、三轴压缩试验等在内的多种室内土工实验。Most areas along the Qinghai- Tibet Railway are of perennial frozen soil. The top layer, which is unsteady, is easily affected by seasonal freezing and thawing. Physical property as well as other features, such as intensity and deformation of perennial frozen earth must be taken into accunt before the structure design of the roadbed made up of frozen soil. Therefore, man）, indoor soil tests are carried out, including the granule analysis test, the specific gravity of soil particle test, the compaction test of soil, the compression test and trixial compression test.

关 键 词：青藏铁路 多年冻土 土工试验 力学特性 

分 类 号：TU411.2[建筑科学—岩土工程]