天台抽水蓄能电站岩壁吊车梁混凝土温度控制技术  

Temperature Control Technology of Rock-bolted Crane Girders in Tiantai Pumped Storage Project

作　　者：樊明忠 FAN Mingzhong(Sinohydro Bureau 5 Co.,Ltd.,Chengdu Sichuan 610066)

机构地区：[1]中国水利水电第五工程局有限公司,四川成都610066

出　　处：《四川水力发电》2024年第S02期100-103,共4页Sichuan Hydropower

摘　　要：阐述了浙江天台抽水蓄能电站地下厂房岩壁吊车梁混凝土施工过程中在现场通过对混凝土配合比进行优化、现场砂石骨料防护、延迟拆模时间、在岩壁吊车梁内部增设冷却管、降低混凝土入仓温度、降低混凝土坍落度等一系列控制及预防混凝土裂缝措施的实施、取得良好效果的过程。通过工程实践,总结出一套合理、可行的控制与防范措施,能够使混凝土温度及温度裂缝得到良好的控制,达到镜面混凝土效果。During the construction of rock-bolted crane girders concrete in the underground powerhouse of Tiantai Pumped Storage Project in Zhejiang Province,a series of measures to control and prevent concrete cracks have been taken,such as optimizing concrete mix ratio,protecting sand and aggregate on site,delaying mold removal time,adding cooling pipes inside the rock-anchored beams,reducing the temperature of concrete warehousing,and reducing the slump of concrete.Through the practice of this project,a set of reasonable and feasible control and prevention measures are summarized,which can well control the concrete temperature and cracks and achieve effect of mirror concrete.

关 键 词：天台抽水蓄能电站 地下厂房 岩壁吊车梁 温度控制 施工 

分 类 号：TV741[水利工程—水利水电工程] TV52TV7TV51