埋地热力管线材Q235钢在不同土壤中的腐蚀行为不同，为了埋管工程的正确选材、施工，减少埋地热力管线的腐蚀，模拟了北京市城市公共绿地、居民区、桥梁下以及城市主干道绿化带4种土壤溶液，采用电化学测试、扫描电镜（SEM）、能谱分析仪（EDS）及浸泡失重法研究了Q235钢在4种土壤模拟液中的腐蚀行为。结果表明：Q235钢在城市公共绿地土壤和居民区土壤模拟液中以全面腐蚀为主，在桥梁下土壤和城市主干道绿化带土壤模拟液中发生严重点蚀；Q235钢在4种土壤模拟溶中的平均腐蚀速率大小为桥梁下土壤〉城市主干道绿化带土壤〉居民区土壤〉城市公共绿土壤；随着Q235钢在4种土壤模拟液中浸泡时间的延长，富集在其表面的腐蚀产物和结晶盐对腐蚀具有一定的减缓作用，吸附在其表面的Ca2＋形成的产物层有效地减缓了Q235钢在城市主干道绿化带土壤模拟液中的腐蚀。
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