Page - 1403 - in Book of Full Papers - Symposium Hydro Engineering

SUMMARY Rubber Dams are known worldwide for applications creating reservoirs in wide rivers for spans up to 100 m and heights up to 4.5 m. Main advantage is the flexible structure for full automatic reservoir level control allowing discharge of sediments, debris and even ice in Nordic conditions. Numerous applications for reservoir control, spillway gates, irrigation purposes and hydroelectric power generation were realized in the last decade. Several rubber dam projects are under operation in India now. The said main advantages were the reason why a rubber dam system was selected by the Main Client Government of Uttar Pradesh, Irrigation Department to meet the targets for the Upgrading of the Gomti River weir structure. For the Gomti Project a water filled system with the advantage for regulation of the reservoir level was selected. In this special project case the rubber dam was added by navigation locks on both sides of the river, allowing passing of boats. This article highlights the key features of the project and main parts are described in detail. Main design considerations are mentioned to give a picture to the calculation required for such a project. Attention was taken to the special arrangement with an external water tank to provide water for the regulation process. In a second chapter the control and regulation of the rubber dams and the navigation locks are described. The project supply parts are already installed on site and the last part for installation of control equipment is expected to be finished before summer 2018. The following commissioning of the rubber dam system will be the last part of project execution phase. 1403