大兴安岭多年冻土起始冻结温度测试研究
RESEARCH ON THE INITIAL FREEZING TEMPERATURE OF PERMAFROST IN DA HINGGANG LING MOUNTAIN
牛兆君 1张喜发 2冷毅飞2
作者信息
- 1. 大庆油田工程有限公司,黑龙江,大庆,163712
- 2. 吉林大学建设工程学院,长春,130026
- 折叠
摘要
采用测温法对取自大兴安岭多年冻土区冻土土样进行了起始冻结温度试验.较详细地阐述了起始冻结温度试验原理、试验仪器设备组成以及试验步骤.本次试验完成了48个土样的起始冻结温度试验.分析了含水量和有机质含量对起始温度的影响,总结出粉土起始冻结温度随含水量的增大而增高直至接近于0℃,回归曲线与实测曲线相关程度高.
Abstract
Using the method of thermometry,the initial freezing temperature of samples is obtained which are from permafrost regions in Da Hinggang Ling Mountain. It introduces the test of initial freezing temperature in detail including the principle,instrument and equipment and operation steps. In this test initial freezing temperature of forty-four soil samples are finished and it analyses the influencing factors such as water content and organic matter. It summarizes that the initial freezing temperature of silt increases by water content increasing till close to zero degree.The relative degree of regression curve and measured curve is high.
关键词
起始冻结温度/含水量/有机质Key words
initial freezing temperature/water content/organic matter引用本文复制引用
出版年
2009
NETL
NSTL
维普
万方数据