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All Journal SIPIL FROPIL (Forum Profesional Teknik Sipil) Dinamisia: Jurnal Pengabdian Kepada Masyarakat BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Jurnal Ilmiah Rekayasa Sipil Dharma Pengabdian Perguruan Tinggi (DEPATI)
Ferra Fahriani, Ferra
Dosen Teknik Sipil Universitas Bangka Belitung
Arts Humanities Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Engineering Languange, Linguistic, Communication & Media Social Sciences Transportation Other

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Journal : Jurnal Ilmiah Rekayasa Sipil

 1 
Perbaikan Subgrade pada Jalan Kampung Keramat di Kota Pangkalpinang dengan Menggunakan Kapur Padam Sebagai Bahan Stabilisasi Tanah Ferra Fahriani; Desy Yovianti; Eko Saputra; Merley Misriani
Jurnal Ilmiah Rekayasa Sipil Vol 17 No 1 (2020): April 2020
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.771 KB) | DOI: 10.30630/jirs.17.1.348

Abstract

Soil is the main support in a construction. Unstable soil conditions, especially in the subgrade can cause damage to the road. Based on the results of a direct survey in the field, it was found that the condition of the Jalan Kampung Keramat in Pangkalpinang City was damaged. This might be caused by the condition of the subgrade on the road which is unstable and the subgrade is categorised as clay soil type. This study aims to improve the subgrade on Jalan Kampung Keramat in Pangkalpinang City by using limestone as a soil stabilization material. This study used an experimental method in the laboratory by making mixture between clay soil and limestone with four different variations in the percentage of limestone, namely 0%, 3%, 5%, 7%. There are four parameters of the mixed characteristics that are tested and analysed, namely: the Atterberg limit, specific gravity, soil gradation and CBR value. The results show that the Atterberg limit values ​​(liquid limit-LL and plasticity index-IP) and specific gravity tend to decrease with increasing percentage of limestone extinguished. However, the plastic limit value (PL) shows the opposite tendency, i.e. it increases with the decreasing percentage of limestone. The specific gravity values ​​obtained based on the percentage of lime outages (0%, 3%, 5%, 7%) are 2.63, 2.61, 2.60, and 2.58, respectively. In addition, the addition of limestone causes changes in soil gradation, namely the addition of retained fraction # No.200 and the reduction of passed fraction # No.200. The Addition of limestone can increase the CBR value of the soil, where the addition of 7% of limestone produces the highest CBR value (21.3%) compared to 5% limestone (15.7%), 3% limestone (13.4%) and 0% limestone (11.2%). Therefore, using limestone can improve quality of subgrade, which can be seen from the value of CBR obtained.
Analisis Tingkat Bahaya Erosi (TBE) pada DAS Riding Kabupaten Bangka Barat Almirza Muhammad Rabbani; Endang Setyawati Hisyam; Ferra Fahriani
Jurnal Ilmiah Rekayasa Sipil Vol 18 No 1 (2021): April 2021
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.v18i1.533

Abstract

Daerah Aliran Sungai (DAS) Riding terletak di Kabupaten Bangka Barat Provinsi Kepulauan Bangka Belitung. DAS ini merupakan salah satu DAS yang termasuk dalam klasifikasi DAS yang dipulihkan dengan permasalahan umum berupa erosi lahan. Penelitian ini bertujuan untuk mengetahui besarnya erosi tanah dan persebaran Tingkat Bahaya Erosi (TBE) pada daerah penelitian. Pada penelitian ini metode yang digunakan adalah metode USLE. Data yang digunakan dalam penelitian ini adalah data karakteristik lahan, data curah hujan, peta jenis tanah (K), peta kemiringan lereng (LS), peta pengelolaan tanaman (C), dan pengelolaan dan konservasi tanah (P). Berdasarkan hasil analisis didapatkan besarnya tanah yang tererosi pada DAS Riding yaitu sebesar 415105,268 ton/tahun atau 683,740 ton/ha/tahun dengan Kelas Bahaya Erosi masuk dalam kelas V (sangat berat) dengan tingkat bahaya erosi pada DAS Riding yaitu kelas sangat berat dan kelas berat. Kata kunci: DAS Riding, Metode USLE, Tingkat Bahaya Erosi, Arahan
Pemetaan Kondisi Tanah di Pesisir Pantai Kabupaten Bangka Ferra Fahriani; Yayuk Apriyanti
Jurnal Ilmiah Rekayasa Sipil Vol 19 No 1 (2022): April 2022
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.v19i1.729

Abstract

Kabupaten Bangka merupakan kabupaten dengan wisata pantai yang sangat bagus namun belum di kembangkan secara optimal. Kajian pemetaan tanah sangat diperlukan untuk menyediakan informasi spasial kondisi tanah di Pesisir Pantai Kabupaten Bangka. Adanya pemetaan kondisi tanah ini bertujuan agar identifikasi awal dalam perencanaan suatu pekerjaan konstruksi dapat dilakukan dengan mudah, cepat dan tepat. Penelitian ini bertujuan untuk menganalisis kondisi tanah yaitu konsistensi tanah, kedalaman tanah keras serta klasifikasi tanah berdasarkan data sondir (CPT) di Pesisir Pantai Kabupaten Bangka. Pada penelitian ini digunakan data sekunder berupa data CPT, peta administrasi dan peta DEM Kabupaten Bangka. Data CPT yang digunakan berjumlah 18 titik uji di sepanjang pesisir pantai kabupaten Bangka. Nilai tahanan konus (qc) serta nilai rasio gesekan (FR) hasil uji CPT pada lokasi penelitian di gunakan untuk menganalisis kondisi tanah. Metode interpolasi spasial yang digunakan pada penelitian ini adalah metode IDW (Inverse Distance Weighted) yang telah terintegrasi pada perangkat lunak ArcGIS. Hasil penelitian menunjukkan bahwa kedalaman tanah keras di Pesisir Pantai Kabupaten Bangka berdasarkan nilai tahanan konus (qc) berkisar antara 2,6 m – 7,72 m. Pada kedalaman diatas 3 meter nilai tahanan konus sudah diatas 120 kg/cm2 yang menunjukkan konsistensi tanah keras (hard). Pada kedalaman tanah keras, klasifikasi tanah di di Pesisir Pantai Kabupaten Bangka berdasarkan korelasi antara nilai Rasio Gesekan (FR) dengan nilai tahanan konus (qc) seragam yaitu berupa tanah lempung
Pengaruh Penambahan Limbah Flue Gas Desulfurization Gypsum Terhadap Karakteristik Tanah Lempung Apriyanti, Yayuk; Lestari, Nova Dinda; Fahriani, Ferra; Hisyam, Endang S; Anugra Sandy, Boy Dian
Jurnal Ilmiah Rekayasa Sipil Vol 21 No 1 (2024): April 2024
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.v21i1.1332

Abstract

Clay soil is a type of soil that has problems because it has high plasticity, a low carrying capacity, and is prone to settlement. This soil condition can be found in the Hanging Tramble, Pangkalpinang City. This study aims to determine the effect of FGD waste gypsum on clay soils, the maximum value of soil shear strength, and the minimum value of soil consolidation settlement. The stabilizing agent used in this study was Flue Gas Desulfurization ( FGD) waste gypsum with a mixture of 10%, 15%, and 20% FGD waste gypsum from the dry weight of the soil., for a total of 39 samples of the test object. Testing in this research uses Indonesian National Standards (SNI).The test results obtained the maximum value of the shear strength of the soil in the FGD waste variations of gypsum at 15%, which is 115.243 kN/m2, and in the 20% FGD gypsum waste mixture, the value of the shear strength of the soil decreased by 79.634 kN/m2. The minimum value for consolidation settlement was obtained from FGD waste variations (gypsum 20%), which is 0.683 cm. The minimum value obtained for consolidation settlement is influenced by the calcium content in the FGD waste gypsum, which can bind soil minerals so as to increase soil strength. It can be concluded that the maximum soil shear strength value occurs in the 15% FGD waste mixed sample variation gypsum, while the minimum soil consolidation settlement value is in the 20% mixed FGD waste mixture gypsum.
Co-Authors Aisah Fitri Almirza Muhammad Rabbani Andi Yusti Andi Yusti, Andi Anugra Sandy, Boy Dian Desy Yofianti Desy Yovianti Eko Saputra Endang S Hisyam Endang Setyawati Hisyam Endang Setyawati Hisyam, Endang Setyawati Hisyam, Endang S Lestari, Nova Dinda MERLEY MISRIANI Ovin Sahara Rahmad Hidayat Revy Safitri Syarifullah Syarifullah Yayuk Apriyanti, Yayuk