Vízügyi Közlemények, 1967 (49. évfolyam)

4. füzet - Rövidebb közlemények és beszámolók

5. Ivicsics, F. and Márton, J

., Civ. Engrs. The application of diaphragm walls in hydraulic construction (for the Hungarian text see pp. 133) One of the first basic types of impervious diaphragm walls with intersecting piles (Fig. 1 ) has been developed in Hungary by H. Lampl. Recently mechanical equipment has been constructed especially for the construction of diaphragm walls, such as the rotary cutting machine of type Titania T-150 (Figs. 2 to 4), which has been used successively for the construction of such walls in sandy gravel soils. The trench was supported by a slurry containing sodium bentonite. Further potential applications of diaphragm walls are mentioned: underground reservoirs, sealing of open canals, flood levees. tt. Tiszai, P., Civ. Engr.: Design problems arising in the protection of slopes against wave action (for the Hungarian text see pp. 139) The protection of slopes against wave action plays an important role in the construction and operation, maintenance of reservoirs. Two of the relevant design problems have been apparently omitted so far, namely the suction effect of waves and the depth effect of receding waves. Suction becomes effective whenever soil particles are eroded through the slope protection. Receding waves may cause scouring and erosion at the toe of the slope.