感潮环境水中氯离子含量及混凝土表面氯离子浓度  

Concentration of Chloride Ions in Tidal Environment Water and Chloride Ions Density of Concrete Surface

作　　者：王建泽[1] 张俊芝[1] 黄海珍 郑辉[1] 周建民[1] 

机构地区：[1]浙江工业大学建筑工程学院,杭州310032 [2]浙江省钱塘江管理局,杭州310016

出　　处：《中国农村水利水电》2008年第9期95-98,共4页China Rural Water and Hydropower

基　　金：浙江省科技计划项目(2007C23058);浙江省水利厅重点科技项目(R10716)

摘　　要：钱塘江河口是强潮河口,其水体中的氯离子含量受冲淤和潮差大小的影响,并受上游泄水量的影响而变化较大。根据对钱塘江河口感潮环境表层水体中的氯离子含量及其海塘护坡混凝土表面氯离子浓度的检测,分析了水体中氯离子含量及与距河口距离的关系、护坡混凝土表面氯离子浓度与距河口距离的关系及不同高度表面浓度的关系等。结果表明,钱塘江河口感潮环境下水体中的氯离子含量,离河口距离越小则表层水体中的氯离子含量越高,并和近水面的混凝土表面氯离子浓度之间具有较好的相关性,且同一断面处不同高度的护坡混凝土表面氯离子浓度与近水面处的浓度之间相关性强。The estuary of Qiangtang River is a strong -tide river mouth, concentration of chloride ions in the water is influenced by al-leviation, sedimentation and tidal rang, and the concentration varies greatly because of influence of water discharge in the upper course. According to measured chloride ions concentration of water soluble in tidal estuary environment of the Qiantang River and chloride ions density of concrete surface of the seawall revetment, the correlation including the relationship of chloride ions concentration of water with distance of estuary, the relationship of chloride ions density of revetment surface concrete with distance of estuary, and the relationship of chloride ions density of surface concrete at the different heights are all analyzed. Their contents are the nearer distance from the estuary, the higher of chloride ions concentration of water soluble under tidal estuary environment of the Qiantang River. There is a better relationship between chloride ions concentration of water soluble and surface concrete at approaching water surface, and there is a correlation between chloride ions concentration of revetment surface concrete at approaching water surface and surface concrete at different heights.

关 键 词：感潮环境 混凝土表面 氯离子 相关性 

分 类 号：TV431[水利工程—水工结构工程]