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导言陕西乾县羊毛湾水库因泄洪洞工作闸和检修闸同时损坏,致泄漏水量1.20立方米/秒。我院用潜水作业的方法在27米水深的泄洪洞进水口处安装4150×4000×270mm的钢木结构闸门并密封填堵,渗漏量仅0.02立方米/秒,完成了水下封堵任务。施工中潜水作业共47人次,潜水工作总时间(含减压)9368分钟。本文介绍施工方法、钢木结构闸门的设计和主要强度计算、潜水减压等,并对开展水库的检测和封堵工作谈几点体会。
Introduction The Qianwan Bay Reservoir in Qianxian County of Shaanxi Province was damaged at the same time due to the work gate and inspection gate of the spillway tunnel causing leakage of 1.20 m3 / s. In our hospital, the 4150 × 4000 × 270mm steel-wood structural gate was installed at the water inlet of the spillway tunnel with a depth of 27 meters by means of the diving operation and the plugging was sealed and the leakage was only 0.02 cubic meters per second, completing the underwater sealing task . Dive work in construction a total of 47 passengers, diving work total time (including decompression) 9368 minutes. This article introduces the construction method, the design of steel-wood structure gate and the calculation of the main strength, the decompression of diving and so on, and how to carry out the detection and plugging work of the reservoir.