干、湿法直流电解车间存在着程度不同的漏电情况,以致杂散电流使地下的钢筋混凝土结构物遭到电解腐蚀(详见《冶金建筑》1981年第2期第6～10页)。以往对这类地下结构物的电腐蚀破坏情况,由于缺乏适当的检测方法,不得不进行破坏性的开挖检查。不但影响生产,而且费时费工,还因开挖部位选择不当,甚至不能获取正确的检查结果。近年来,在试验室和现场测试的基础上,以钢筋在碱性环境中的极化电位变化规律为依据,针对电解车间厂房地下结构的电腐蚀,提出一种新的检 Dry and wet DC electrolysis plants have different levels of leakage, resulting in stray currents that cause corrosion of underground reinforced concrete structures (for details, see Metallurgical Architecture, 2nd Issue, 1981, pp. 6-10). In the past, the electrical corrosion damage to such underground structures had to be destructively excavated due to the lack of appropriate detection methods. Not only affects the production, but also time-consuming work, but also because of inappropriate selection of excavation site, or even unable to obtain the correct inspection results. In recent years, on the basis of laboratory and field tests, based on the regularity of polarization potential changes of steel bars in alkaline environments, a new inspection has been proposed for the electro-corrosion of the underground structure of a factory building.