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本文针对重庆市排污沟埋式混凝土箱涵开裂事件 ,基于连续的现场调查与监测 ,通过有限元数值分析探讨了箱涵裂缝的形成机理 ,认为该事件的重要因素之一是箱涵地基的不均匀沉降变形。裂缝的分布规律与混凝土箱涵拉应力区的发育现状是吻合的。
In this paper, according to the crack initiation in Chongqing drainage culvert buried concrete box culvert, based on the continuous field investigation and monitoring, the formation mechanism of box culvert cracks is discussed through finite element numerical analysis. It is considered that one of the important factors of this event is the failure of box culvert foundation Even settlement deformation. The distribution of cracks coincides with the development of tensile stress zone of concrete box culvert.