河北工业科技2018，Vol.35Issue(3)：197-203,7.DOI:10.7535/hbgykj.2018yx03008
地下综合管廊混凝土爆灰检测及加固
Detection and reinforcement of concrete ash explosion in underground pipe gallery
摘要
Abstract
Ash explosion quality defects are found in cast-in-place concrete roof and side wall in a city underground pipe gallery. In order to ensure the safety of the underground pipe gallery,a series of tests such as core-bit,ultrasonic method,boiling test, and chemical component analysis of the ash explosion are carried out.The ash explosion is detected.The result shows that when the quicklime in concrete and water are cured,the volume will increase by 1~2.5 times.Before concrete reaches the design ten-sile strength,the concrete has been cracked under the volume expansion stress of the massive calcium oxide,occuring this type of quality defect.The effect of the defects on the underground pipe gallery is evaluated,and reinforcement design and treatment is carried out,meeting the safe handling requirement of the structure.The study may provide reference for the reinforcement design and treatment of similar ash explosion conditions.关键词
混凝土与钢筋混凝土结构/生石灰/爆灰/检测/加固Key words
concrete and reinforced concrete structure/quick lime/ash explosion/detection/reinforcement分类
建筑与水利引用本文复制引用
郑世夺,张鹏,李彦辉,蒋录珍,安国旗..地下综合管廊混凝土爆灰检测及加固[J].河北工业科技,2018,35(3):197-203,7.基金项目
国家自然科学基金(51308182) （51308182）
河北省自然科学基金(E2014208143) （E2014208143）
