就大坝施工来说,混凝土坝和土石坝是性质完全不同的工程。从施工技术来看,由于随着推土机和机铲等通用重型机械的发展,而建立了大规模机械化施工的体系,因此,土石坝的施工技术进展十分显著。从混凝土坝来看,混凝土浇筑不如基坑开挖的进展显著。由于适合修建混凝土坝的坝址越来越少、条件越来越差,且从施工安全措施的角度出发,必然要在施工技术发展方面作出 For dam construction, concrete dams and earth-rock dams are completely different types of works. From the construction technology point of view, due to the development of general heavy machinery such as bulldozers and machine shovels, a system of large-scale mechanized construction has been established. Therefore, the progress of construction technology for earth-rock dams has been remarkable. From the point of view of concrete dam, concrete pouring is not as good as foundation pit excavation. As fewer and fewer dam sites are suitable for the construction of concrete dams, conditions are getting worse and worse, and from the point of view of construction safety measures, they are bound to be made in terms of construction technology development