冻土区电杆直埋式基础变形规律研究

结合青藏铁路门型电杆的基础形式,对直埋式基础的设计及工程处理措施进行了研究,同时对已完工的门型电杆进行了变形观测,提出了在高原地区做变形观测应注意的事项,结果表明,在冻土地区采用换填油砂直埋式基础可以有效地防止冻融循环过程中产生的冻拔,能够满足承载力的要求,该基础形式是合理可行的。

Study on distortion law of direct-embedded electronic pole foundation in frozenground

This article has done the research on the design of directembedded foundation and construction treatment measure,according to the foundation form of the Qinghai and Xizang Railway portal electronic pole.Meanwhile,observation has been done on the foundation of portal electronic pole completed,and attention items of distortion observation in the plateau area have been proposed.The results indicate that adoption of this direct-embedded foundation where soil-sand is in place of frozen ground can avoid heaving effectively in the thawing-freezing cycle and can also meet the request of bearing capacity.So this form of pile foundation is feasible.