土工基础

›› 2019, Vol. 33 ›› Issue (1): 87-90.

• 工程实录 • 上一篇    下一篇

输电线路铁塔基础结构钢筋锈蚀参数监测分析

杨芒生，黎凯旻，郭兆华，马 键，安向阳   

  1. （广东电网有限责任公司茂名供电局，广东茂名 525000）
  • 收稿日期:2019-01-01 修回日期:2019-01-09 出版日期:2019-03-02 发布日期:2019-03-08
  • 作者简介:杨芒生（1973-），男，高级技师，大学本科。研究方向为输电线路运检管理与输配电智能作业。
  • 基金资助:

    广东电网有限责任公司科技项目《输电线路铁塔基础结构安全性评估及加强技术研究》（GDKJXM20162556）资助

Monitoring and Analysis of the Corrosion of Steel Reinforcement Bars in Foundation of Power Transmission Towers

YANG Mangsheng, LI Kaimin, GUO Zhaohua, MA Jian, AN Xiangyang   

  1. (Maoming Power Supply Bureau, Guangdong Power Grid Co., Ltd., Maoming 525000)
  • Received:2019-01-01 Revised:2019-01-09 Online:2019-03-02 Published:2019-03-08

摘要： 输电线路铁塔基础结构钢筋锈蚀是影响整条输电线路正常运行的关键问题，引起基础结构钢筋锈蚀的因素很多，主要有PH值、Cl-浓度及氧气含量等。针对广东茂名地区的输电线路，采用监测设备对输电线路铁塔基础结构的地下环境参数进行了监测。监测结果表明：PH值为弱碱性、Cl-浓度偏大等，在有氧气的地下环境中，铁塔基础结构易发生锈蚀。

关键词: 输电线路, 基础结构, 钢筋锈蚀, 环境参数监测

Abstract: The corrosions of the steel reinforcement bars in foundation of power transmission tower structures is one of the key factors that affecting the safe operation of power transmission lines. Among many potential factors, electrochemical properties such as, pH value, Cl concentration and oxygen content are factors that might induce the corrosion of the steel reinforcement bars. This paper presents a case history of corrosion monitoring of the subsurface environmental conditions for the steel reinforcement bars in foundation of power transmission towers in Maoming area. The monitoring results indicated that, the power transmission towers are located in the coastal area so that the pH is slightly alkane and chloride content is high, corrosion of the steel reinforcement bars was observed under the oxygen rich environments.

Key words: power transmission lines, foundation structures, corrosion of steel reinforcement bars, environmental parameters monitoring