Hidrológiai Közlöny 1971 (51. évfolyam)

1. szám - Dr. Öllős Géza: A kutak vízhozamát befolyásoló tényezők

Special Conference Number, Szebellédy, L. Hidrológiai Közlöny 1971. 1. sz. 23 o Recording instrurnents <. Hydro-isohypses . Observing wells Fig. IS. Layout of the No. II. midget horizontal filter well on Szentendre island. Szentendre Danube branch. — in case of recharging, the degree of pretreatment required. For this reason, the circumstances of water supply and pumping from the well should be coordinated carefully. In the paper of K. II. Kludig (Fig. 12) a detailed analysis is presented of the basic hydraulic cases of infiltration, the relations of intercepting units and the field of seepage. On this basis, the fundamental processes of seepage can be interpreted — without any further specification — for any set of boundary contition (including an arbitrary clogging of the infiltration surface). The hydrogeological factors influencing the amount of bank Fig. 14. Temperature conditions of infiltrating water (cf. Fig. 13.) in different months of the year. filtration water, the effect of well-types, as well as the effect of seepage surface poHution are considered in detail. Of the many effects influencing the yield — which are discussed in detail in the papers — Gy. Pusztai (Fig. 13) presents information concerning temperature conditions in the area around a horizontal filter well sited on an island (Fig. 14). The factual information of Gy. Pusztai concerning the hydraulic effect in clogged river beds is highly interesting (Fig. lő). As indicated in the figure, at a certain water-level of the Danube, the drawdown curve intersects, due to clogging of the bed, the bottom under the water level in the bed i. e., there is a discontinuity in water level. This caused the Budapest Municipal Waterworks to locate the wells at a greater distance, about Fig. lő. Water level discontinuity at the point of infiltration. Zone of intensive bed filling j | Infiltration surfaces Clay bcse