我国定向爆破筑坝经历了两次大起大落,呈马鞍形发展.在曲折中,人们的认识发生了分歧:一种认为定向爆破筑坝经济快速,适合国情,值得推广应用;一种认为它遗害不少、问题较多,就成坝效果而言并不一定经济快速,应持慎重态度.现在又面临定向爆破筑高坝的研究任务,因而有必 China’s directional blasting dam has undergone two ups and downs, was saddle-shaped development in the twists and turns, people’s understanding of the divergence: One that directional blasting damming economy is fast, suitable for the national conditions, it is worth promoting the application of; Quite a few problems and more are not necessarily fast economic effects of damming and should be cautious. Now facing the task of directed blasting to build high dam, it is necessary