| 某高层住宅楼氯离子污染地基的处理 |
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| 引用本文： | 王石光,秦瑛.某高层住宅楼氯离子污染地基的处理[J].湖南地质,2002,21(1):40-42,72. |
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| 作者姓名： | 王石光 秦瑛 |
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| 作者单位： | 湖南省公路桥梁建设总公司 湖南长沙410003
(王石光),湖南省公路桥梁建设总公司 湖南长沙410003(秦瑛) |
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| 摘 要： | 毗邻化工厂的某高层住宅楼地基上,长期遭受氯离子的侵蚀,该化工厂排放废水的氯离子含量高达75000mg/L。根据《岩土工程勘察规范》（GB50021－94）对其腐蚀性进行评价,认为住宅楼东面地基土对混凝土具有中等以上的腐蚀性。为防止氯离子渗过基坑腐蚀住宅楼混凝土基础,采用水泥搅拌桩形成防渗墙隔断氯离子的渗透;基坑开挖后,采用换土垫层法进行处理,以过量的水泥隔断氯离子渗透,可有效防止氯离子通过基坑底部对基础产生腐蚀。
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| 关 键 词： | 氯离子 防渗墙 污染地基 换土垫层法 腐蚀机理 高层住宅楼 |
DISPOSAL OF Cl~- POLLUTION ON THE FOUNDATION OFSO-AND-SO HIGH BUILDING FOR RESIDENCE |
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| WANG Shi-guangQIN Ying,.DISPOSAL OF Cl~- POLLUTION ON THE FOUNDATION OFSO-AND-SO HIGH BUILDING FOR RESIDENCE[J].Hunan Geology,2002,21(1):40-42,72. |
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| Authors: | WANG Shi-guangQIN Ying |
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| Abstract: | The foundation of so-and-so high building for residence, which is near a chemical engineering factory with Cl -content high up to 75,000 mg/L in its discarded water, is eroded byCl- for a long time. According to "Regulation on engineering investigation" ( GB50021-94), the erosion was evaluated, and above middling erosion of floor soil at the east of the building to concretewas existed. Cement stake was adopted to prevent Cl- from permeating base pit; After the foundation pit was dug open, changed the soil-mat layer and excessive cement used to cut off the permeation, the corrosion of Cl- on base pit was effectively prevented. |
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| Keywords: | Cl- Anti-permeating wall Polluted foundation Change soil-mat layer |
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