白石水库碾压混凝土重力坝基础垫层混凝土裂缝的原因分析  

A Discussion on the Bedding Layer Concrete Cracks of Roller Compacted Concrete Gravity Dam of Baishi Reservoir

作　　者：姜国辉 沈冰[1] 李玉清[2] 李雷 

机构地区：[1]西安理工大学,西安710048 [2]沈阳农业大学,沈阳110161 [3]辽宁省水利土木工程咨询公司,沈阳110003

出　　处：《沈阳农业大学学报》2005年第3期336-339,共4页Journal of Shenyang Agricultural University

摘　　要：白石水库大坝为碾压混凝土重力坝,因工期和导流的需要,在浇筑大坝基础垫层混凝土时,有的部位安排在秋季浇筑,有的部位安排在春季浇筑,浇筑完毕后即放入河水进行保护,且均在水下越冬。在恢复浇筑混凝土前,对这些基础垫层混凝土进行了全面检查,发现有些坝段出现了裂缝,而有些坝段没有出现裂缝。通过对原始资料的研究分析,查到了产生裂缝的主要原因,并采取了切实可行的处理方法,同时为今后类似工程的设计与施工提供了参考。The dam of Baishi Reservoir was buih with a roller compacted concrete gravity dam. The casting of the Bedding layer concrete was finished in the Spring or in the Fall,and then put the bedding layer concrete into the river to be protected through the winter. According to the research in next Spring, cracks were found in some monolith. After analysising of the original data the main reasons of appearing cracks were found, and some practical disposals were adopted. In the meantime, the worth-while

关 键 词：白石水库 垫层混凝土 裂缝 内外温差 

分 类 号：TV642.2[水利工程—水利水电工程]