1. | Overhaul of reinforced-concrete lock walls, in which such consequences of long and deep aging as sustained movements of the top of the walls into the chambers occurred, is a completely feasible task with the use of prestressed anchoring. |
2. | Heavy reinforcing of the reinforced-concrete walls and crowded conditions of conducting the works are not an obstacle (with the correct approach) for drilling anchor holes and tensioning the anchors. |
3. | The technology of anchoring with removable heads, including combining the two methods of creating prestressing — “against stops” and “against concrete,” is efficient and reliable. Such technology provides reliable fastening of the reinforcement being tensioned in a stretched state and permits conducting works under crowded conditions, where there is no room for placing the heads being left or the tensioning jack. Furthermore, such a method makes it possible to save expensive parts of the heads, using them many times. |
4. | The complexity of works on prestressed anchoring requires for conducting them the enlistment of specialized construction organizations possessing reliable technologies and having skilled personnel. |
5. | Gidroproekt's technology was sufficiently perfected, which provided a high technical effect from its use for strengthening the walls of the No. 8 lock with a high productivity of labor and a high quality of the works. |
6. | This technology can be used successfully also in many other cases, when it is required to repair old concrete and reinforced-concrete structures as well as stone masonry structures, where such signs of aging as through cracks and slow progressive movements of their separated parts appeared. |