泵送高扬程、高强度等级山砂混凝土的堵管问题分析及预防  

Analysis and Prevention of Pipe Blockage in Pumping High-lift and High-strength Mountain Sand Concrete

作　　者：张路 何冬辉 ZHANG Lu;HE Donghui(China Construction Fifth Engineering Bureau the Third Construction Co.,Ltd.,Changsha,Hunan 410004,China)

机构地区：[1]中建五局第三建设有限公司

出　　处：《建筑施工》2019年第12期2191-2193,共3页Building Construction

摘　　要：结合工程实际,阐述了贵州地区机制山砂混凝土泵送时的堵管现象,并简要测算了因堵管问题而导致的经济损失。同时,对堵管问题的原因进行了分析,在此基础上,通过改变机制砂生产、泵管管网布置、泵车型号等条件,最终满足了机制山砂高扬程、高强度等级的泵送要求,成功解决了堵管问题,可为其他类似工程提供一定的借鉴经验。Combining with the engineering practice, the pipe blockage phenomenon during pumping of machine-made mountain sand concrete in Guizhou area is expounded, and the economic loss caused by the pipe blockage problem is briefly calculated. At the same time, the causes of pipe blockage are analyzed. On this basis, by changing the conditions of machine-made mountain sand production, pump pipe network layout and pump truck model, the high-lift and highstrength pumping requirement of machine-made sand is finally met, and the pipe blockage problem is successfully solved, which can provide some reference experience for other similar projects.

关 键 词：泵送混凝土 高扬程 机制山砂 堵管 管网布置 

分 类 号：TU528.53[建筑科学—建筑技术科学]