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在土方工程中,减轻繁重体力劳动和手工操作,逐步提高机械化水平,一直是建筑工业中的主要问题。几年来出现的中小型土方机械是不少的,经过调查、清理和鉴定,许多机械得到了巩固和提高,在施工中起了十分重要的作用,蟹斗挖土机就是其中的一项。但是,人们对蟹斗挖土机的性能、使用范围、经济效果仍然存在着不少怀疑,对已经成功的项目也不敢
In earthworks, it has always been a major problem in the construction industry to reduce the heavy physical labor and manual operations and gradually increase the level of mechanization. In the past few years, there have been many small and medium-sized earth-moving machinery. After investigation, cleaning, and appraisal, many machines have been consolidated and improved. They have played an important role in the construction process. Crab bucket excavators are one of them. However, people still have a lot of suspicions about the performance, scope of use, and economic effects of crab bucket excavators, and they are not afraid of successful projects.