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.
出处
《油气储运》
CAS
北大核心
2005年第12期70-72,共3页
Oil & Gas Storage and Transportation
关键词
冻土
管道设计
勘察
方法
rozen soil district,pipeline design,survey,method
