岩土力学2011，Vol.32Issue(11)：3432-3436,5.
冻土融化体积压缩系数的经验确定方法
Empirical method for determining thawing volume compression coefficient of frozen soil
摘要
Abstract
Thawing settlement deformation is one of the main freezing damage for the structure in permafrost region. The actual thawing settlement is the superposition of two parts: thaw settlement and compression settlement. The volume compression coefficient is the key calculation parameter in estimating the compression deformation. Basing on the 286 thawing compression test data of undisturbed frozen soil samples, it has put forward various types of regression equations including linear equation, binomial equation and logarithmic equation and these equations represent the relationship of volume compressibility and dry density of six sorts of soil on the two different pressure sections 0-100 kPa and 0-200 kPa. These soil types are fine gravel, sand, silt, clay, peaty clay and peat. On this basis the empirical volume compression data table of the six sorts of soils is given out; meanwhile, the problems in recommended methods of specifications are pointed out.关键词
冻土融沉系数/体积压缩系数/干密度Key words
thawing settlement coefficient/volume compression coefficient/dry density分类
建筑与水利引用本文复制引用
杨凤学,张喜发,冷毅飞,赵意民..冻土融化体积压缩系数的经验确定方法[J].岩土力学,2011,32(11):3432-3436,5.基金项目
中国石油天然气集团公司技术开发项目"中俄原油管道漠河-大庆段工程冻土研究"资助. （）
