Research Article
Application of Electrical Resistivity Tomography Technique for Characterizing Leakage Problem in Abu Baara Earth Dam, Syria
Table 2
Full description of the detected subsurface features derived from the ERT-P1 survey profile at Abu Baara earth dam.
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ERT profile length: 715 m |
Detected layers thickness (m) |
Lithological description |
Bed dip |
Resistivity values (·m) | Abnormal features |
Possibility of seepage | Kind of anomaly | Location on ERT section |
| Block (I) | 0–300 m | L1: 1–5 | Alluvium, clays, sands, and gravels |
5–7° toward the valley | 50–150 | — | — | — | L2: 40–45 | Limestones and dolomites rocks | >1200 50–150 | Cavity Void filled by alluvium | 60–90 m 230–250 m | Possible seepage | Block (II) | 300–500 m | L: 45 | Alluvium, clays, sands, and gravels | 0° | 50–150 | Subsiding structure (main valley) | 300–500 m | Seepage through both edges | 5–15 | Vertical clayey zone | 300–320 m | Possible seepage | Block (III) | 500–715 m | L1: 1–25 | Alluvium, clays, sands, and gravels |
20° toward the valley | 50–150 | — | — | — | L2: 30–45 | Limestones and dolomites rocks | 300–1000 | Discontinuity feature | 650 m | Possible seepage |
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