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ANALISIS PENGARUH INFILTRASI AIR HUJAN TERHADAP KESTABILAN LERENG TANAH TIMBUNAN PADA PIT MUARA TIGA BESAR UTARA DI PT BUKIT ASAM, TBK TANJUNG ENIM SUMATERA SELATAN.

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Muara Tiga Besar Utara (MTBU) is one of the longest operating pits at PT Bukit Asam. Most of the pit area is a stockpile area. This is because the overburden material in the MTBU pit uses the backfilling method. So that the MTBU pits experience slope failure caused by infiltration of rainwater into the soil layer on the slopes which will increase the load on the slopes as a result of increased water content in the soil, which in turn triggers landslides. Infiltration on slopes will increase the pore water pressure and reduce the shear strength of the soil. This condition causes slope failure. In this condition the shear strength of the soil is determined by the residual shear strength. High and intense rainfall will cause the soil to become saturated, resulting in a decrease in cohesion, low cohesion will cause the soil to become weak and the unit weight of the soil will increase. rainfall is 2,608.90, then 3,291.80 mm in 2020 and 3,202.90 in 2021. slope stability using the geostudio application program SLOPE/W, SEEP/W produces a safety factor value before rain on a slope of 1,018, a safety factor due to 30 minutes of rain on the slopes is 0.991, the safety factor due to 1 hour 30 minutes of rain on the slopes is 0.987, the safety factor due to 2 hours of rain on the slopes is 0.986. From the analysis of the stability of the embankment slopes using the geostudio application where the higher the rainfall, the lower the FK value produced.

Availability
Inventory Code Barcode Call Number Location Status
2407001013T139499T1394992024Central Library (Referens)Available
Detail Information
Series Title
-
Call Number
T1394992024
Publisher
Indralaya : Prodi Teknik Pertambangan Fakultas Teknik Universitas Sriwijaya.,
Collation
xv, 51 hlm.; Ilus.; 29 cm
Language
Indonesia
ISBN/ISSN
-
Classification
622.607
Content Type
Text
Media Type
unmediated
Carrier Type
-
Edition
-
Subject(s)
Prodi Teknik Pertambangan
Sistem Transportasi di Pertambangan
Specific Detail Info
-
Statement of Responsibility
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No other version available

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