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All Journal Journal of Civil Engineering and Planning (JCEP) Policy Brief Pertanian, Kelautan, dan Biosains Tropika
Ginoga, Sitti Filzha Fitrya
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Engineering Environmental Science Social Sciences Transportation

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Sand Slope Stability Analysis Using the Bishop Simplified Hyrcan 2.0 Method with CaCO3 Reinforcement Julianto, Baskoro Tri; Ginoga, Sitti Filzha Fitrya
Journal of Civil Engineering and Planning (JCEP) Vol. 6 No. 1 (2025)
Publisher : Program Studi Sarjana Teknik Sipil Universitas Internasional Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37253/jcep.v6i1.9979

Abstract

Slopes are open land surfaces that form an angle and therefore their stability and safety factors need to be considered. This research aims to analyze the stability of sand slopes using the Bishop Simplified method in Hyrcan 2.0 software with the addition of calcite (CaCO3) as a reinforcement method. Sand slopes have low stability due to low cohesion and lack of interaction between particles, which is exacerbated by the influence of groundwater. The addition of CaCO3 in various concentrations (0%, 10%, and 20%) was applied to improve the shear strength parameters of the sand slope. The simulation model includes six material variations with slope geometric configurations that reflect field conditions. The simulation results showed that the slope with 20% CaCO3 concentration had the highest factor of safety (FOS) of 1.05, compared to 0.73 in the model without reinforcement. Vertically shifting the landslide center point affects the length of the slide plane and the FOS value, where increasing the CaCO3 concentration contributes significantly to improving the slope stability. The relationship between the vertical location of the landslide center and FOS was analyzed using linear regression, which showed a negative relationship between the two. This study concludes that the addition of CaCO3 effectively improves the stability of sand slopes, with FOS approaching safe values although the FOS value in the best model is still categorized as unsafe.
Small-Scale Infrastructure, Big Impact: Peran Infrastruktur Sederhana dalam Menjaga Ketahanan Pangan Skala Kecil Ginoga, Sitti Filzha Fitrya; Tri Julianto, Baskoro
Policy Brief Pertanian, Kelautan, dan Biosains Tropika Vol. 8 No. 1 (2026): Policy Brief Pertanian, Kelautan, dan Biosains Tropika
Publisher : Direktorat Kajian Strategis dan Reputasi Akademik IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agro-maritim.0801.1508-1514

Abstract

Alih fungsi lahan pertanian yang terus meningkat telah menjadi ancaman struktural bagi ketahanan pangan nasional, sementara kebijakan yang ada masih didominasi oleh pendekatan makro melalui perlindungan lahan, impor pangan, dan pembangunan infrastruktur berskala besar. Pendekatan tersebut penting, namun belum secara memadai memperkuat kapasitas produksi pangan di tingkat rumah tangga dan komunitas kecil, yang justru merupakan lapisan awal dalam sistem ketahanan pangan nasional. Policy brief ini menyoroti adanya kesenjangan kebijakan dalam pengakuan dan pengelolaan infrastruktur pangan mikro, seperti sistem penyediaan air skala kecil, sarana budidaya pekarangan, dan fasilitas pascapanen sederhana, yang selama ini diposisikan sebagai aktivitas swadaya dan belum terlembagakan. Berdasarkan tinjauan literatur dan praktik yang telah berkembang, tulisan ini menegaskan bahwa infrastruktur mikro memiliki peran strategis sebagai resilience buffer terhadap gangguan pasokan, fluktuasi harga, dan ketidakpastian iklim. Oleh karena itu, ketahanan pangan skala kecil perlu direposisi sebagai isu kebijakan infrastruktur publik melalui pengakuan formal, standardisasi teknis adaptif, serta skema pembiayaan dan bimbingan teknis berbasis komunitas yang terintegrasi.
Co-Authors Julianto, Baskoro Tri