综合管廊结构性修复材料试验研究  

Experimental study on structural repair materials of integrated pipe gallery

作　　者：王铁 马保松[1] 王靖 米荣熙 王天宇[1] 曾聪[1] WANG Tie;MA Baosong;WANG Jing;MI Rongxi;WANG Tianyu;ZENG Cong(Engineering College,China University of Geosciences,Wuhan 430074,China)

机构地区：[1]中国地质大学工程学院,湖北武汉430074

出　　处：《混凝土》2021年第3期107-111,共5页Concrete

基　　金：国家重点研发计划“公共安全风险防控与应急技术装备”重点专项资助(2017YFC0805000)。

摘　　要：在现状调研的基础上,研究了硅灰、水灰比、速凝剂以及纤维类型4种因素对砂浆性能的影响,并结合某圆形管廊工程案例,配制出强度满足该管廊壁厚的砂浆材料。结果表明,当砂浆强度达到69.8 MPa时,管廊的壁厚可以取到0.47 m左右,这可以作为该项案例的管廊破坏后壁厚的设计参考依据。Based on the investigation of the research status,the effects of four factors,such as silica fume,water-cement ratio,quick-setting agent and fiber type on the performance of mortar were studied,and a circular pipe gallery project was taken as the case to prepare the strength to meet the requirements.The results show that when the mortar strength reaches 69.8 MPa,the wall thickness of the pipe gallery could be about 0.47 m,which can be used as the reference for the design of the wall thickness after the destruction of the pipe gallery in this case.

关 键 词：结构破坏 砂浆性能 硅灰 水灰比 速凝剂 纤维 

分 类 号：TU528.7[建筑科学—建筑技术科学]