ANALISIS POTENSI LONGSOR MENGGUNAKAN METODE KINEMATIK PADA TAMBANG SANDY CLAY TERBUKA HAMBALANG PT INDOCEMENT TUNGGAL PRAKARSA TBK KECAMATAN CITEUREUP KABUPATEN BOGOR JAWA BARAT

FADHLAN AZKA MUHAMMAD

Abstract


Berbagai jenis longsoran/keruntuhan lereng (slope failure) berhubungan dengan struktur-struktur geologi yang mengakibatkan adanya suatu diskontinuitas pada suatu massa batuan. Massa batuan merupakan tubuh atau massa batuan yang dipisahkan oleh diskontinuitas. Litologi terdiri dari batuan sedimen Formasi Jatiluhur (Tmj), yaitu napal dan serpih lempungan, dan sisipan batupasir kuarsa. Lereng yang dijadikan penelitian berlokasi di area Sandy Clay PT Indocement Tunggal Prakarsa Tbk. Jenis material penyusun pada lereng umumnya terdiri dari tanah dan litologi batulempung. Analisis kinematik yang didapatkan yaitu tipe longsoran baji pada Scanline I yang berpotensi terjadi longsor, tipe longsoran bidang pada Scanline II yang berpotensi terjadi longsor, dan tipe longsoran bidang pada Scanline III yang tidak berpotensi terjadi longsor.

 

ABSTRACTVarious types of landslides (slope slope) relate to geological structures that result from
 discontinuities in rock mass. The mass of rocks is the body or mass that is limited by
 discontinuity. The lithology consists of the Jatiluhur Formation (Tmj) rock sediments,
namely the napal and the clay flakes, and the quartz sandstone inserts. The research
slopes are located in Sandy Clay area of PT Indocement Tunggal Prakarsa Tbk. Types
of constituents on slopes of soil and claystone lithology. The kinematic analysis obtained
is the type of slide slides on Scanline I which is known to occur in landslide, type of
landslide area on Scanline II that occurs after landslide, and type of landslide on Scanline
III that does not occur.

 

Keyword : Analysis Kinematic, Rock Mass Rating

 


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References


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