Seite - 1283 - in Book of Full Papers - Symposium Hydro Engineering

2.2. CLAY CORE DIKE This option was designed by researchers at CoRI. In this design, the dredged material from El-Burulus Lake was used as a core for the dike. The core is covered with sand up to a level of 3.00 m. Vegetation within sand fence boxes was used to protect the dike faces and crest as shown in Fig. 4. The length of the dike is also 250m. Five monitoring wells were installed within the dike body to monitor the water levels (i.e. seepage) within the dike. Fig. 4 Clay core dike design Based on a survey undertaken by the Desert Research Center [DRC] on the natural vegetation in the pilot site location, eight plant species were chosen to protect the sand that cover the dike. These species are:  Sarcocornia fruticosa (L.) A.J. Scot.  Juncus rigidus Desf.  Imperata cylindrica (L.) roeusch  Elymus farctus (viv) Runem  Panicratium maritimum L.  Ipomoea stolonifera (cyr.) J.F. Gmel.  Calligonum comosum (L, Her.) Soskov.  Tamarix nilotica (Ehrenb.) Bunge. 2.3. GEO-TUBE DIKE This option was designed by practitioners at SPA. In this design, a Geo-tube core was covered with a clay layer from the dredging of El-Burulus Lake up to a All dimensions are in meters 1283