Vízügyi Közlemények, 1982 (64. évfolyam)

2. füzet - Kisebb tanulmányok, közlemények, beszámolók

A folyószabályozás tervezésének fejlesztése 325 have accordingly been initiated with the aim of exploring the potential applications, and practical introduction of aerial photogrammetry and interpretation of aerial photographs in hydrography. An unspecified, but nevertheless definite requirement in advanced hydrographie surveying was to incorporate into the national geodetic survey system of benchmarks as equivalent components the monuments of the river survey and river training networks, which formed formerly a separate system and were not recognized by the national survey. The need of revising the design flood levels on the Hungarian rivers arose in the early 1970-ies. For this purpose it was necessary to establish a statistically checked, uniform data base on carrier media suited to computerized processing, which could be used as the reliable starting basis for determining design levels, durations and annual occurrences described in terms of statistical probabilities. After these preliminaries the research project B.200, entitled "Improvement of flood control, flood fighting, river- and lake regulation" was compiled in 1972. The objective was to list systematically and schedule —with due regard to the development objectives of this professional branch —the research tasks needed to provide an advanced, integrated methodology for mean water regulation mainly on the rivers in Hungary. Relying on the advances in basic research, further on the methodological experiences gained from the general designs prepared parallel thereto, the guidelines entitled "Principles and methods of advanced river training" was published in 1973, which has found since general acceptance in the profession and has been adopted as the engineering codes of practice and other regulations issued by the National Water Authority in connection with river training. The general engineering designs for the regulation of the Dráva River downstream of the mouth of the Mura River were prepared accordingly, followed in 1975 by the designs for the regulation of the Gönyü-Szob section of the Danube, in cooperation with the Water Management Research Institute VUVH, Bratislava, Czechoslovakia. In the same year work was in progress on the designs for regulating the Szob-Southern Border section of the Danube. The next assignment by the River Regulation Department of the National Water Authority for the period 1976 to 1980 was concerned with the general engineering designs for regulating the entire Hungarian section of the Tisza River. In order to establish the necessary data base a hydrographie survey of the river was necessary, setting up under this project a denser network of both horizontal and vertical control stations, over the entire Hungarian section. * * * Entwicklung auf dem Gebiet der Planung von Flussregelungcn von Dr. János CSOMA Die Forschungsarbeit auf dem Gebiet der Flussregelung lief an der Forschungsanstalt für Wasserwirtschaft VITUKI in den sechziger Jahren an. Die ersten Untersuchungen befassten sich mit dem Stauraum oberhalb der Staustufe Tiszalök, mit der Regelung der ungarischen oberen Donau und mit den l'lussbaulichen Fragen des Krafwerkprojektes Gabcikovo —

Nagymaros. Es konnte bereits in dieser Periode eindeutig festgestellt werden, dass flussbauliche Massnahmen nur im Besitz entsprechender hydrologischer und morphologischer Grundlagen erfolgreich geplant werden können. Wenn man die an die Regelung gestellten Anforderungen und die Entwicklungsmöglichkeiten in Erwägung zieht, stellt sich heraus dass die herkömmlichen Verfahren nicht mehr ausreichen um die Vermessungsarbeiten im erforderlichen Umfang und miL der notwendigen Genauigkeit durchführen zu können. Deshalb wurden Forschungen in die Wege geleitet mit dem Ziel die Anwendungsmöglichkeiten der Luft-