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近年来地下空间的开发利用逐渐普遍,由于功能要求,地下室往往面积大,体量大,超过设置伸缩缝的最小间距。地下室砼因裂缝导致渗漏水的现象也频频出现,有的甚至影响到建筑物的使用功能和安全。某建筑物地下室侧壁开裂的情况比较多,裂缝宽度小于0.5mm、间距1m-4m、长度有的贯通墙壁全高,侧壁两端附近裂缝较少,中部附近较多。裂缝往往在砼浇筑的60d之内出现,随着时间的推移裂缝数量增多,部分裂缝加宽。尤其是在进入冬季气温骤变的时候。本文通过对该地下室砼开裂的原因进行分析,提出了各种处理措施。
In recent years, the development and utilization of underground space gradually universal, due to functional requirements, basements are often large area, large body, more than the minimum distance between the installation of expansion joints. Basement concrete cracks caused by the phenomenon of leakage of water is also frequent, and some even affect the use of buildings and safety features. A building basement wall cracking more than the case, the crack width of less than 0.5mm, spacing 1m-4m, the length of some through the wall full height near the ends of the wall less cracks near the middle of more. Cracks often appear within 60 days of concrete pouring, with the increase of the number of cracks over time, part of the cracks widened. Especially when it comes to sudden temperature changes in winter. In this paper, the cause of concrete cracking in the basement is analyzed and various treatment measures are put forward.