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Results of geodetic measurements at the Inguri arch dam under construction
Conclusions 1. In the initial period of constructing the dam its central part was tilted toward the upper pool; with filling of the reservoir the dam immediately began to tilt toward the lower pool. 2. The settlement maximum was at first located under the upstream face and then moved under the downstream face, at all times being in the region of the 14th section. As of July 1, 1981 the measured settlement was 21 mm. 3. During filling of the reservoir there occurred brief reversible uplifts of the grouting galleries in the bank cuts of all horizons with the occurrence of a line of zero settlements, and also reversible uplifts of the rock mass in the lower pool to 8 mm. 4. The displacement of the central cantilever toward the lower pool at elevation 120 m during 1977–1980 was 45 mm. 5. The maximum horizontal displacements are accounted for by the cantilevers, which are shifted from the dam axis toward the right bank. 6. The dam of the start-up profile and profile with a construction height of 210 m worked jointly with the foundation as an elastic system during drawdown and filling of the reservoir. 7. Under the effect of the weight of the water and concrete the terrain adjacent to the dam moved toward the dam and reservoir.
Results of geodetic measurements at the Inguri arch dam under construction
Conclusions 1. In the initial period of constructing the dam its central part was tilted toward the upper pool; with filling of the reservoir the dam immediately began to tilt toward the lower pool. 2. The settlement maximum was at first located under the upstream face and then moved under the downstream face, at all times being in the region of the 14th section. As of July 1, 1981 the measured settlement was 21 mm. 3. During filling of the reservoir there occurred brief reversible uplifts of the grouting galleries in the bank cuts of all horizons with the occurrence of a line of zero settlements, and also reversible uplifts of the rock mass in the lower pool to 8 mm. 4. The displacement of the central cantilever toward the lower pool at elevation 120 m during 1977–1980 was 45 mm. 5. The maximum horizontal displacements are accounted for by the cantilevers, which are shifted from the dam axis toward the right bank. 6. The dam of the start-up profile and profile with a construction height of 210 m worked jointly with the foundation as an elastic system during drawdown and filling of the reservoir. 7. Under the effect of the weight of the water and concrete the terrain adjacent to the dam moved toward the dam and reservoir.
Results of geodetic measurements at the Inguri arch dam under construction
Kuznetsov, G. I. (author)
Hydrotechnical Construction ; 17 ; 143-150
1983-03-01
8 pages
Article (Journal)
Electronic Resource
English
Results of geodetic measurements at the Inguri arch dam under construction
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