工程交付使用一段时间后，由于冻害等原因，渠道衬砌产生不同程度的横向、纵向及不规则裂缝。
Due to cold damage, different cracks, crosswise crack, vertical crack and irregular crack, occurred to varying degree after the project had been used for a while.
本文逐一论述了水泥砼路面的横向裂缝、纵向裂缝．砼路面板不规则裂缝等产生的原因。
The authors introduce the reasons of causing the crevices on cement concrete pavement in this paper.
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