摘要
浅埋隧道结构中,U形槽因其刚度大、防水效果好等优点被广泛应用于市政道路和公路建设中,但在后期使用过程中,路面混凝土裂缝会使结构的防水性能下降,导致U形槽出现渗漏,必须引起足够的重视。以某市政道路下穿隧道U形槽为研究对象,针对浅埋隧道结构表面混凝土开裂现象,对裂缝成因进行分析,并提出详细的裂缝处理方案,该方案可为类似U形槽裂缝的防治提供参考。
U-shaped groove is widely used in municipal road and highway construction because of its high stiffness and good waterproof effect. However, surface concrete cracks will degrade waterproof performance of the groove, resulting in leakage of U-shaped groove, which needs to be paid enough attention. Taking a U-shaped groove of a municipal road underpass tunnel as research object, based on the cracking phenomenon of surface concrete, the causes of cracks are analyzed concretely, and a detailed crack treatment scheme is put forward. The scheme can provide reference for crack prevention of similar U-shaped groove.
作者
吴建平
WU Jianping(China Railway 24th Bureau Group Co.,Ltd.,Shanghai 200071,China)
出处
《现代交通技术》
2020年第1期45-48,共4页
Modern Transportation Technology
关键词
浅埋隧道
U形槽
裂缝成因
裂缝处理
shallow buried tunnel
U-shaped groove
cause of cracks
crack treatment
