冻土地带电杆上拔的原因与预防

Cause for and Prevention of Pulling-up of Wire Poles in Frozen Ground

论述了冻土地带电杆上拔的原因 ,并用实例计算了冻土电杆上拔的时间和临界冻层厚度 ,提出了预防上拔的措施。

Discusses the causes for the pulling up of wire poles in frozen ground, calculates with a typical example when a wire pole is pulled up from frozen ground and the critical thickness of frozen ground, and suggests some countermeasures to prevent the pulling up of wire poles in frozen ground.