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All Journal Journal of Geoscience, Engineering, Environment, and Technology Journal of Applied Geospatial Information
Tiggi Choanji
Department of Geological Engineering, Universitas Islam Riau, Jl. Kaharuddin Nasution no. 113, Pekanbaru, Indonesia
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Physics

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Infiltration Rate of Quarternary Sediment at Rumbio Jaya, Kampar, Riau Adi Suryadi; Tiggi Choanji; Desy Wijayanti
Journal of Geoscience, Engineering, Environment, and Technology Vol. 3 No. 1 (2018): JGEET Vol 03 No 01 : March (2018)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1953.256 KB) | DOI: 10.24273/jgeet.2018.3.1.1223

Abstract

The study of infiltration rate was conducted at Rumbio Jaya, Kampar, Riau which closed with meandering river of Kampar. Infiltration rate data collected by using double ring infiltrometer with 30 cm and 60 cm diameter of cylinder. To support the data of infiltration test at quarternary sediment, subsurface soil profiling data were taken with hand auger drilling. The result of infiltration rate analysis shown the highest value is located at ST 2 and ST 3 (southwest part of study area) with value 248 mm/hr and 159 mm/hr. infiltration rate gradually decreasing toward northeast of study area with lowest value 2.6 mm/hr at ST 6 which caused location very closed to Kampar River. Core data from hand auger drilling support result of infiltration rate with gravelly sand layer (high porosity and permeability) are dominated at study area and some low infiltration rate location consists of thick layer of silt.
Clustering Slope Stability from Using Drone, DEM Lineament Extraction And Rock Mass Rating In Pangkalan Koto Baru, West Sumatra, Indonesia Tiggi Choanji; Yuniarti Yuskar; Dewandra BE Putra; Catur Cahyaningsih; Winanda Sakti
Journal of Applied Geospatial Information Vol 2 No 2 (2018): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5.279 KB) | DOI: 10.30871/jagi.v2i2.880

Abstract

Clustering slope stability in the Pangkalan Koto Baru, West Sumatra has become one of priority in disaster management. The method used for this study are using the combination of structural lineament analysis, scanline with window sampling and Rock mass rating (RMR) calculations. The analysis results of the fourteen observed slope sites showed significant outcome, which seen in the structural lineament show dominant trend from northwest-southeast, which also correlate from the measurement of discontinuity by using scanline with window sampling. From RMR calculation, value showed range between 17 - 42 which belonged to class V (Very Poor Rock) - class III (Medium Rock ). Integration data of structural lineament, scanline method and RMR analysis suggested that 1 slope included in the very poor rock category, 12 slopes are poor rock category, and 1 slope in the medium rock category. So, it can be ascertained that most of the slopes will potentially be prone to landslides. Keywords: Slope Stability, RMR, Structural Lineament, Pangkalan Koto Baru, West Sumatra.
Co-Authors Catur Cahyaningsih, Catur Desy Wijayanti Dewandra BE Putra Suryadi, Adi Winanda Sakti Yuniarti Yuskar