一、引言近年来在道路、农田排水中,采用U形予制混凝土渠槽日益增多,在冬季伴随着地基冻结而造成的冻胀坡坏,也已成为所关心的问题.有关地基自然冻胀使建筑物受害的研究,已发表过不少成果,但由于自然冻胀对建筑物的损害受多种因素支配,针对某些具体建筑物的研究成果,对其他建筑物未必适用.有关道路排水侧沟的冻胀破坏及其对策的研究尚不多见;而在农业用水方面对比较大型的渠道侧壁的冻胀破坏的研究已在进行,也提出了一些施工对策,但尚无以小型渠道冻胀破坏为对象的研究,有必要做专门探讨. I. INTRODUCTION In recent years, in the drainage of roads and fields, the use of U-shaped pre-made concrete trenches has increased day by day, and in the winter, frost heave slopes caused by the freezing of foundations have also become a concern. The natural frost heave of foundations is concerned. Research on building damage has published many results, but damage to buildings due to natural frost heave is subject to a variety of factors. Research results for certain buildings may not be applicable to other buildings. Related road drainage Research on frost heaving damage and countermeasures of side ditch is rare; while studies on the frost heaving damage of the relatively large channel sidewalls have been carried out in the field of agricultural water use, and some construction countermeasures have also been proposed, but there is no small scale The research on the frost heaving damage of the channel is a subject to be studied.