KARAKTERISASI KUAT GESER JENUH DARI SHALE YANG DIKOMPAKSI PADA FORMASI DJATILUHUR DI AREA CISOMANG

• Main Author: Beny Pamuji, Didit
• Format: Theses
• Language: Indonesia
• Subjects: Teknik sipil
• Online Access: https://digilib.itb.ac.id/gdl/view/40035
• Institution: Institut Teknologi Bandung

Various types of shale have been used extensively in the construction and many problems have been encountered, including embankment failure, slope instability and others. There are several things that cause this clay shale soil to be studied, namely the magnitude of the shear strength value, which varies from one geological formation to another geological formation. The study was conducted with the aim of obtaining the characterization of Cisomang clay shale from the index properties and shear strength of compacted shale and obtaining parameters A and B Skempton to describe clay shale shear strength in saturated conditions with a value of B ? 0.95. The results of the calculation of the field water content were 20,7%, the results of the modified proctor test showed that the optimum water content (wopt) was 16.1% and the maximum dry weight (????d,max) was 17.3 kN / m3 and the void ratio (e) was 0, 54. The shear strength parameters of the triaxial CU test results were obtained with an effective cohesion value (c ') of 35.88 kPa, the effective angle of shear (ø') was 33.05o and total cohesion cT = 21.95 kPa, the total angle of shear was øT = 24, 31o. With a skempton parameter value of 0.31, this soil specimen is classified as overconsolidated clays or compacted sandy clays. From the results of the uniaxial compression test the compacted shale soil has very stiff consistency with a typical medium clay / Sandy clay.