Table 1 Geological properties of the rock masses.
From: Re-evaluation of excavation class limits for underground excavations based on new data
Code | Researchers | Location | Formation | Age | Lithology | Max. Overburden (m) |
|---|---|---|---|---|---|---|
1 | Gurocak et al.26 | Eastern Turkey | Yamadag Volcanics | Middle-Late Miocene | Basalt | 50 |
2 | Tuffite | 25 | ||||
3 | Gurocak et al.18 | Eastern Turkey | Ispendere Ophiolities | Late Jurassic Late Cretaceous | Diabase | 78 |
4 | Gurocak and Yalcin21 | Eastern Turkey | Komurhan Ophiolities | Late Cretaceous | Gabbro | 150 |
5 | Alemdag et al.27 | Northern Turkey | Caglayan Formation | Late Cretaceous | Basalt | 100 |
6 | Tuffite | 40 | ||||
7 | Erdem28 | Eastern Turkey | Malatya Volcanics | Middle-Late Miocene | Basalt | 170 |
8 | Dacite | 55 | ||||
9 | Agglomerate | 100 | ||||
10 | Tuffite | 100 | ||||
11 | Hekimhan Formation | Late Cretaceous | Shale | 120 | ||
12 | Alibonca Formation | Early Miocene | Marl | 110 | ||
13 | Limestone | 110 | ||||
14 | Kanik and Gurocak29 | Northern Turkey | Esiroglu Formation | Late Cretaceous | Pyroclastic | 50 |
15 | Kackar Rhyodacite | Tonalite | 150 | |||
16 | Catak Formation | Shale | 250 |