采用LPL贴嘴灌浆新工艺治理地下输水系统混凝土温度裂缝  

Application of LPL Close Grouting Technique for Treatment of Concrete Temperature Crack Treatment in the Underground Transmitting Water System

作　　者：顾黔兴 

机构地区：[1]中国水利水电第十四工程局

出　　处：《工程质量》2005年第4期39-42,共4页Construction Quality

摘　　要：三峡工程永久船闸地下输水遂洞在洞室浇筑衬砌一段时期内,结构混凝土受到内外温差的影响,因不均匀收缩产生裂缝。为保证整体结构不受影响,施工中按照三峡工程质量专家组建议进行了防范和补救,特别是首次大胆采用LPL贴嘴灌浆工艺获得成功经验,并已在三峡工程中推广应用。During concrete pouring for the tunnel of underground transmitting water system, the concrete structure was cracked by the difference in temperature inside and outside. Considering whole structure quality, experts suggested to take some measures of protection and remedy. Therefore the new technology of LPL close grouting was introduced and popularized in Three Gorges constructions for its successful application.

关 键 词：温度裂缝 结构混凝土 内外温差 不均匀 收缩 地下 浇筑 三峡工程 灌浆 输水 

分 类 号：TU755[建筑科学—建筑技术科学] TU375