龚嘴水电站10号底孔浮体闸门封水面深水自动测量技术

Automatic Deep Water Measuring Technique for the Sealing Surface of No. 10 Bottom Sluice of Gongzui Hydropower Station

为确定龚嘴水电站10号冲砂底孔检修门段修复工程采取何种措施能确保浮体闸门有效止水,必须对封水坝面的特征如不平度、整个封水面的平面度、主要缺陷等进行精确测量。文中介绍了该工程中浮体闸门封水面水下自动测量技术及其实际应用,该技术实现了60m水深以内(可不受此水深限制)坝面不平度测量无需潜水员水下作业,极大地减轻了劳动强度,提高了工效,降低了成本。

In order to choose the measures to ensure the sealing of the floating body for the repair of No. 10 bottom sluice of the Gongzui Hydropower Station, it is necessary to measure accurately, such characteristics of the dam surface as unevenness, the planeness and main deficiencies. This article introduces the automatic underwater measuring technique and its application. By use of this technique, the unevenness of the dam surface is detected without a diver within 60 m water depth （not restricted within this depth）, so that the labor intensity is largely reduced, the work efficiency is improved, and the cost is lowered.