摘要
热棒失效会对塔基基础周围地温场产生不良影响,导致地基降温幅度下降,引起塔基地温场的不对称性。若该现象发生在地基土含水率较高的区域,则有可能引起塔腿之间差异变形增大,降低塔基稳定性。因此,为了确保工程的长期稳定,应每隔数年定期对输电线路塔基热棒进行检测,及时对存在失效热棒的塔基采取相应的补强措施。
The failure of heat pipes will result in advantages to geothermal regimes of foundation soils for tower foundations in boundary regions of permafrost regions,which may give rise to the asymmetry distribution of geothermal field.These influence may result in the increase in differential vertical deformation between tower foundations and threaten the stability of a tower in areas with high moisture content in foundation soils.Therefore,the failure problem of heat pipes for tower foundation should be examined every several years and proper strengthening measures should be taken in time one the heat pipe failure is found to prevent tower failure.
作者
谢艳丽
张仲秋
廖鹏
陈尧
杨韬辉
XIE Yanli;ZHANG Zhongqiu;LIAO Peng;CHEN Yao;YANG Taohui
出处
《青海电力》
2019年第4期52-54,共3页
Qinghai Electric Power
基金
国家电网有限公司总部科技项目(52280716000A)
关键词
热棒
塔基
输电线路
多年冻土
heat pipe
tower foundation
transmission line
permafrost
