【摘要】 三峡工程是关系到国计民生的一项特大型工程，必须保证其长期、安全地运行，这就要求对工程中的埋地金属构件进行有效的腐蚀防护，而构件使用寿命的预测及防护方法的筛选又赖于该地区土壤的腐蚀性强弱。本文以三峡坝址土壤的腐蚀性调查与研究为重点，探讨了三峡地区土壤的腐蚀性及其主要影响因子。作者认为，三峡地区土壤的腐蚀性较强，在工程建设中最好先进行土壤腐蚀环境的勘测，并在工程中采用必要的防护方法。更多还原

【Abstract】 The Three-Gorge engineering is a superlarge project related to national economy andlivelihood of the masses.So its underground metal structure must be protected againstcorrosion in order to work safely and permanently.The prediction of life-span of undergroundstructures and the selection of the methods for corrosion prevention are dependent on soilcorrosiveness.Thus,the inivestigation and testing of soil corrosiveness become importint.The soil corrosiveness and its main effecting factors in Three-Gorge region are discussed inthis paper.It is demonstrated that the soil corrosiveness in Three-Gorge region is relativelyintense.Therefore,investigation of soil corrosiveness should be done in order to adoptappropriate method for the protection of underground structures when necessary.更多还原