螺旋地桩腐蚀事故的实例分析与处理
摘要:螺旋地桩具有施工便捷、进度快、环境影响小等优点,在地面光伏支架基础中逐渐得到推广应用,但其在腐蚀性土壤中易产生腐蚀破坏,影响使用寿命,尤其在盐渍土中更为突出。通过回顾螺旋地桩的腐蚀机理及影响因素,结合西北盐渍土地区某光伏电站地桩的腐蚀实例,在对腐蚀事故的现状调查、数值模拟及原因分析的基础上,根据腐蚀受损程度的不同,分别提出了不同的处理方案,并从桩身材料、保护层、改善受力性能、外加电流等方面提出了相应的措施。腐蚀事故的分析及处理的过程,能够为同类工程的设计、鉴定及处理提供借鉴和吸取教训。
Abstract:Screw piles have some advantages of convenient construction,fast progress,less adverse impact on environment,etc,and has been widely used in foundation of the ground photo-voltaic power stations.However,it is apt to damage in corrosive soils and shorten its service life,especially in saline soils.By summarizing the corrosion mechanism and influence factors,combining with a case of corrosion on screw piles for a photo-voltaic power station in the northwestern saline soils,on the basis of investigation,numerical simulation and cause analysis,different treatment measures are proposed according to the different degree of corrosion damage. The corresponding measures are put forward according to the aspects of the materials,protective layers,improving the mechanical properties improvements and applied current protection,etc.From the analysis and treatment process of corrosion,it could provide references and lessons for the design,identification and disposes for similar engineering.
中文标题:
螺旋地桩腐蚀事故的实例分析与处理
Analysis and Treatment of a Corrosion on Ground Screw Piles
作者:
张亮1,刘壮志2
Zhang Liang1,Liu Zhuangzhi2
作者简介:张亮,男,1983年生,硕士,高级工程师,注册土木工程师(岩土),一级建造师。主要研究方向:地基基础与深基坑,主要从事地基基础、地基处理与深基坑、高边坡设计与施工。E-mail:zl3221993@163.com
通讯地址:
1. 中机中联工程有限公司, 重庆 400039; 2. 普洛斯投资(上海)有限公司, 上海 200120
1CMCUEngineeringCo.,Ltd.,Chongqing400039,China; 2PuluosiInvestment&Management(China),Shanghai200120,China
中图分类号:TU473.1
doi:10.3969/j.issn.1007-2993.2020.02.004
出版物:岩土工程技术
收稿日期:2019-10-16
网络出版日期:2021-07-10
关键词:盐渍土,螺旋地桩,土壤腐蚀,事故分析,数值模拟,处理措施
Key words:saline soils,ground screws piles,soil corrosion,failure analysis,numerical simulation,treatment measures
文档包含图片数量:图片(0)张
文档包含表格数量:表格(0)个
参考文献:
基金项目:
- 文件大小:
- 12.82 MB
- 下载次数:
- 60
-
高速下载
|
|