Seite - 1462 - in Book of Full Papers - Symposium Hydro Engineering

Fig. 1 3D FE-model of the dam and the dam section The subsoil model is based on the data in [2], [3] and [5]. In total, three zones of different permeability in the vertical direction are considered (see Figure 2). Clay slate is found on the right slope according to [2]. On the left slope, greywacke with clay slate interlinings are found. A grout curtain is installed and extends to a depth of +177.00 m a.s.l. in the region of the clay ridge and on both sides of the clay ridge to a depth of +191.00 m a.s.l.. 104 anchors stabilize the dam in the middle area. Each anchor contains 34 strands. The cross-sectional area of each strand is 150 mm². The anchor force is 4500 kN/anchor. 52 anchors reach into a depth of +167.0 m and 52 into +172.0 m. The grout length of the anchor for transmitting forces into the rock is 10 m each. Fig. 2 Constitutive models used for the masonry dam, the intact rock and the joints 1462