土工基础

土工基础 ›› 2019, Vol. 33 ›› Issue (6): 630-633.

• • 上一篇    下一篇

斜坡地基上输电铁塔稳定性评价及加固设计

由于输电线路越来越多的修筑于斜坡顶部或山腰处，斜坡滑移引起输电铁塔失稳破坏屡有发生。通过对斜坡地基上输电铁塔的一个加固设计案例研究，说明了输电线路建设中应该提高对斜坡稳定状态的关注。针对该边坡地形地质条件、工程水文地质条件及周边工程影响因素分析了该斜坡的潜在失稳模式，以Slope/W软件建模并搜索最不利滑动面分析其斜坡稳定性安全系数，并对稳定性较差的斜坡进行了加固和防护排水措施处理，提供了一套评价并处理修建在斜坡上的输电铁塔的设计思路以供实际工程借鉴。   

  1. (1.中国南方电网有限责任公司深圳供电局有限公司，广东深圳 518010；2.福州大学环境与资源学院，福州 350116；3.地质工程福建省高校工程研究中心，福州 350116；4.中国能源建设集团广东省电力设计研究院有限公司，广州 510663）
  • 收稿日期:2019-03-21 修回日期:2010-05-06 出版日期:2019-12-28 发布日期:2019-12-28
  • 通讯作者: 叶诚耿（1993-），男，硕士研究生，研究方向为边坡工程。
  • 作者简介:王 晨（1989-），男，工程师，研究方向为输电线路运行与维护。
  • 基金资助:
    中国南方电网有限公司科技项目（090000KK52160020）

Stability Evaluation and Mitigation Design of Transmission Towers on Slopes

Failure of transmission towers that constructed on slopes due to the excessive movement of slopes are frequently encountered. This paper presents a case history of stability remediation of a transmission tower on a slope with an objective of the enhancing the importance of the stability evaluation of the slope before the transmission tower construction. Based on the geological and geographical conditions at the project site, the failure modes of the slope are established, and the stability of the slope was evaluated with the commercial software Slope/W. The slope was then stabilized, and drainage measures were installed.   

  1. (1.Shenzhen Power Supply Company, China Southern Grid Co., Ltd., Shenzhen 518020;
    2.Department of Geotechnical and Geological engineering, School of Environment and Resources, Fuzhou University, Fuzhou 350116;
    3.Geological Engineering Research Center, Fujian Provincial University, Fuzhou 350116;
    4.Guangdong Electric Power Design Research Institute Co., Ltd., China Energy Construction Group, Guangzhou 510663)
  • Received:2019-03-21 Revised:2010-05-06 Online:2019-12-28 Published:2019-12-28

摘要： 由于输电线路越来越多的修筑于斜坡顶部或山腰处，斜坡滑移引起输电铁塔失稳破坏屡有发生。通过对斜坡地基上输电铁塔的一个加固设计案例研究，说明了输电线路建设中应该提高对斜坡稳定状态的关注。针对该边坡地形地质条件、工程水文地质条件及周边工程影响因素分析了该斜坡的潜在失稳模式，以Slope/W软件建模并搜索最不利滑动面分析其斜坡稳定性安全系数，并对稳定性较差的斜坡进行了加固和防护排水措施处理，提供了一套评价并处理修建在斜坡上的输电铁塔的设计思路以供实际工程借鉴。

关键词: 输电线路, 边坡, 稳定性分析, 锚杆

Abstract: Failure of transmission towers that constructed on slopes due to the excessive movement of slopes are frequently encountered. This paper presents a case history of stability remediation of a transmission tower on a slope with an objective of the enhancing the importance of the stability evaluation of the slope before the transmission tower construction. Based on the geological and geographical conditions at the project site, the failure modes of the slope are established, and the stability of the slope was evaluated with the commercial software Slope/W. The slope was then stabilized, and drainage measures were installed.

Key words: Transmission Lines, Slope Stability, Stability Evaluation, Ground Anchors

中图分类号: