Investigation of rock slope stability for an abandoned limestone quarry in Konya (Turkey)

• Published in: Landslides and Engineered Slopes. Experience, Theory and Practice Vol. 1; pp. 1169 - 1176
• Main Authors: Kalpakci, V., Ozturk, S., Topal, T., Huvaj, N.
• Format: Book Chapter
• Language: English
• Published: CRC Press 2016
• Edition: 1
• Subjects: Direct Shear Tests; Direct Shear Testing Setup; Jointed Limestone; Rock Barriers; Rock Slope; Overburden; Adverse Orientation; Joint Roughness Coefficient; Basic Friction Angle; Karstic Cavities; Massive Limestone; Kinematic Analyses; GSI; Slope Stability Analyses; Rock Slope Stability Analyses; Slope Benches; Rockfall Analyses; Discontinuity Survey; Slope Stability Problems; Back Analyses; Wedge Failures; Micritic Limestone; Slope Instability Problems; JCS; Shear Strength Parameters
• ISBN: 1138029882; 9781138029880
• DOI: 10.1201/9781315375007-131

Slope stability problems were encountered in an abandoned quarry which is planned to be used as recreational area by the municipality of Selcuklu in Konya, Turkey. The rock in the quarry is primarily composed of micritic limestone which contains karstic cavities mainly controlled by joints. In order to assess the stability of the abandoned quarry, discontinuity survey, laboratory tests, kinematic and rock slope stability analyses were performed. Based on the analyses, planar and wedge failures as well as rockfall problems were identified. Possible remedial measures to be taken should consider the results of the analyses with existing project and environmental restrictions. Slope stability problems were encountered in an abandoned quarry which is planned to be used as recreational area by the municipality of Selcuklu in Konya, Turkey. In the city of Konya, slope instability problems were observed at an old quarry where is nowadays considered to be used as a recreational area. The character of the rock and adverse orientation of the joints cause some slope instability problems such as sliding and rockfall. The rock in the quarry is primarily composed of micritic limestone which contains karstic cavities mainly controlled by joints. In order to assess the stability of the abandoned quarry, discontinuity survey, laboratory tests, kinematic and rock slope stability analyses were performed. Based on the analyses, planar and wedge failures as well as rockfall problems were identified. The steep slopes which are completely composed of jointed limestone are covered with a thin fill layer containing debris and organic soil at the uppermost part.