混凝土有序裂缝控制的补偿配筋法

Concrete Crack Control Ordered Compensation Reinforcement

近年来,为数不少的地下通道或隧道施工过程中,侧墙常出现彼此平行的有序排列的垂直裂缝,其中贯穿的裂缝并伴有渗漏现象,给工程进展带来困难,处理不当,还会造成质量隐患。文章首先介绍有序裂缝出现的机理及工程实况,其次阐述补偿配筋的计算方法;最后列出一工程实例,说明设计步骤与实际效果。

In recent years, a large number of the sidewall vertical cracks often appeared orderly parallel to each other in the underground passage or tunnel construction process, which runs through the cracks and accompanied by leakage. It has brought difficulty to project progress. When it handled in properly, it will result in quality problems. This paper introduces an orderly mechanism cracks and engineering live, followed by elaborating calculation method of compensation reinforcement; a project examples to illustrate the design procedure and the actual results are listed at the end.