Environmental Engineering Reference
In-Depth Information
Figure 15.1.
Features of early concrete face rockfill dam design (ICOLD, 1989a). (1) Cutoff trench, (2)
Concrete face, (3) Plinth, (4) Vertical joint, (5) Horizontal joint, (6) Parapet, (7) Crane-placed
large rock, (8) Dumped rockfill, (9) Slope, (10) Curved axis. (A) Reinforcement, (B) 1.9 cm red-
wood filter and Z waterstop, (C) Grout curtain, (D) Cross section of dam, (E) 18 m (60 feet),
(F) Elevation of face, (G) Mastic, (H) Premoulded asphalt, (I) Compressible joint filler, (J) U
copper, (K) Reinforcement.
Figure 15.2.
Modern practice for zoning of CFRD constructed of sound rockfill on a strong rock foun-
dation (adapted from ICOLD, 1989a). (1) Plinth, (2) Horizontal joint, (3) Vertical joint. (A)
Perimetric joint, (B) Steel reinforcement, (C) Anchor bars, (D) Consolidation grout holes, (E)
Grout curtain, (F) Horizontal reinforcement, (G) Width form, (H) Broom joint, (I) Zone 2E,
selected small rock placed in the same layer thickness as Zone 2D, (J) Zone 2D, processed
small rock, (K) Concrete face, (L) Zone 1B, random, (M) Zone 1A, impervious soil, (N)
Zone 3A, quarry run rockfill or gravel fill, about 1.0 m layers, (O) Zone 3B, quarry run rock-
fill or gravel fill, about 1.5 m to 2.0 m layers, (P) Available large size rock dozed to face, (Q)
Starter slab, (R) 18 m, (S) Straight axis, (T) Elevation of face, (U) Horizontal reinforcement,
(V) Surface painted with asphalt, (W) Copper waterstop, (X) Mortar pad, (Y) Zone 3D, plus
0.3 m rockfill, (Z) Section of dam.
