冻土地区勘察在管道设计工作中的重要性  

The Importance of Frozen Soil District Survey in Pipeline Design

作　　者：高晓飞[1] 孙宏全[1] 詹胜文[1] 刘晓峰[1] 

机构地区：[1]中国石油天然气管道工程有限公司

出　　处：《油气储运》2005年第12期70-72,共3页Oil & Gas Storage and Transportation

摘　　要：分析了冻土及地基土冻胀和融沉对管道的影响,阐述了在冻土地区管道勘察的重要性,介绍了冻土地区管道勘察的步骤和方法。指出冻土地区管道勘察与常规管道勘察的区别在于试验量大、精度要求高,需要评判和确定的各项因素指标多,勘察周期长且勘察的时间和方式有特殊限定,建议4～5月和10～11月是分别勘察冻结深度和融化深度最大值的最佳时间。This paper analyzes the influence of frozen soil,foundation freezing and thawing on pipeline,describes the importance of pipeline survey in frozen soil district and introduces the steps and methods of pipeline survey in frozen soil district. It is pointed out that different from the ordinary pipeline, the pipeline survey in frozen soil district is at heavy testing and high accuracy in geological survey with more indexes to be evaluated and determined, also including long survey period and special limitation in survey time and method. The authors suggest that the best survey period is from April to May for frozen depth and October from November for thawing depth.

关 键 词：冻土 管道设计 勘察 方法 

分 类 号：TU445[建筑科学—岩土工程] U412.2[建筑科学—土工工程]