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异型断面填石路基出现的各种病害,其产生的原因是多方面的,如地质勘察不详尽、设计未充分重视、施工质量未达到要求等。按照病害的类型,可以从两个主要方面分析其产生机理,即填方路基稳定性不足和填挖路基不均匀变形。填方路基稳定性不足填方路基稳定性不足是指填方路基自身稳定性不能充分满足稳定要求,其产生的原因主要在于两个方面因素的影响,即填方部位地基过陡和填方部位地基软弱(局部地基存在软弱下卧层)。填方部位地基过陡山区公路由于地形条件十分复杂,经常遇到在陡坡地基上修筑填方路基的情况(如图1所示)。此时,如果地
There are many reasons for the various diseases occurring on the irregular shaped rockfill embankment, such as incomplete geological survey, inadequate design, insufficient construction quality and so on. According to the type of disease, it can be analyzed from two main aspects of its production mechanism, namely the lack of stability of filled embankment and embankment uneven deformation. Underfill of embankment is not sufficient Stability of fill embankment means that the stability of fill embankment itself can not fully meet the stability requirements, which are mainly due to the impact of two factors, namely fill the site of the site too steep and fill the site Foundation is weak (partial subsoil existence of weak sub-layer). Due to the complex terrain conditions, it is common to encounter the construction of road embankment on steep slopes (Figure 1). At this time, if the ground