大坝水下部分的监视和维修会遇到两种困难:水的深度和维修期限。瑞士一家公司生产了能解决这两个问题的水底检查设备。除此以外,本文还介绍了可不排空水库、能在水下200米操作的水库疏浚系统。 1.引言在大坝运行几年以后,有些大坝充满了几十米厚的沉积物,相当于几十万立方米的物质。这种现象对那些水库沉积已超过80％的国家还 Surveillance and maintenance of the underwater part of the dam encounter two difficulties: the depth of the water and the duration of the repairs. A Swiss company produces underwater inspection equipment that addresses both of these issues. In addition, this article also introduces a reservoir dredging system that can operate without draining the reservoir and operating 200 meters underwater. 1. INTRODUCTION A few years after the dam has been in operation, some dams are filled with dozens of meters of sediment, which is equivalent to hundreds of thousands of cubic meters of material. This phenomenon is also true for countries that have deposited more than 80% of the reservoir