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All Journal Jukung (Jurnal Teknik Lingkungan) Jurnal Ilmiah Rekayasa Sipil Borneo Engineering: Jurnal Teknik Sipil Construction and Material Journal Jurnal Warta Desa (JWD) KOMMAS: Jurnal Pengabdian Kepada Masyarakat
Yelvi Yelvi
Politeknik Negeri Jakarta
Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Environmental Science Other

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ANALISIS STABILITAS DAN PERKUATAN LERENG MENGGUNAKAN PLAXIS2D DI DESA SUKARESMI, SUKABUMI, JAWA BARAT A'isyah Salimah; Muhammad Fathur Rouf Hasan; Suripto Suripto; Yelvi Yelvi; Imam H Sasongko
Jukung (Jurnal Teknik Lingkungan) Vol 5, No 2 (2019): September 2019
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (565.304 KB) | DOI: 10.20527/jukung.v5i2.7316

Abstract

Permukaan tanah tidak semua berbentuk bidang datar, namun memiliki perbedaan ketinggian dan kemiringan pada setiap daerah. Perbedaan ketinggian tanah mampu mengakitbatkan terjadinya pergerakan tanah yaitu longsor. Keberadaan bangunan base transceiver station (BTS) tower di Desa Sukaresmi, Cisaat, Sukabumi yang berada pada daerah lereng curam dengan kondisi retaining wall dan pagar dalam keadaan retak dan mengalami penurunan tanah menjadi salah satu faktor yang mengancam keselamatan. Untuk mengantisipasi dampak kerusakan lingkungan bertambah parah dibutuhkan penanganan khusus. Penelitian ini bertujuan untuk melakukan analisis stabilitas dan perkuatan lereng menggunakan software Plaxis2D. Adapun metode penelitian dilakukan dengan melakukan investigasi lapangan secara langsung, pengujian laboratorium, analisis stabilitas perkuatan lereng dengan software Plaxis2D serta rekomendasi perbaikan drainase. Upaya perkuatan lereng dengan mengganti dan memperdalam retaining wall existing. Hasil perkuatan lereng dapat meningkatkan nilai safety factor menjadi 1,369, nilai ini lebih besar dari safety factor existing sebesar 1,302. Kata kunci: cisaat, longsor, Plaxis2D, stabilitas lereng. The soil surface is believed to have differences in height and slope in each region. The different elevation could cause land movements namely landslides. The existence of tower base transceiver station (BTS) buildings in Sukaresmi Village, Cisaat,  Sukabumi on a deep slope area with cracked retaining walls and fences condition which experienced settlement is one of the factors that threaten safety. To anticipate the impact of environmental damage getting worse requires special handling. The aim  of this study is to analyze the stability and slope reinforcement using Plaxis2D software. The research method is carried out by conducting direct field investigations, laboratory tests, reinforced slope stability analysis with Plaxis2D software and drainage refinement recommendations. Countermeasures to strengthen the slope are done by replacing and deepening the existing retaining wall. The result of this measure is the increase of the safety factor value to 1,369, this value is greater than the value of the existing safety factor of 1,302. Keywords : cisaat, landslide, Plaxis2D, slope stability.
Biopori Sebagai Upaya Mengatasi Banjir dan Ketersediaan Air Tanah di Lingkungan Pesantren Nurul Huda A'isyah Aisyah Salimah; Yelvi Yelvi; Tri Widya Swastika; Husnil Barry; Andikanoza Andikanoza
KOMMAS: Jurnal Pengabdian Kepada Masyarakat Vol 1, No 2 (2020): KOMMAS: JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : KOMMAS: Jurnal Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (604.051 KB)

Abstract

ABSTRAKPertumbuhan penduduk yang semakin padat di Kelurahan Pasir Gunung Selatan menyebabkan tanah banyak dijadikan perumahan, pembangunan jalan, dan fasilitas umum yang menjadikan tanah ditutupi oleh aspal dan beton. Pada waktu hujan turun, air tidak dapat menyerap kedalam tanah dan mengakibatkan banjir. Masalah lain yang muncul adalah penurunan muka air tanah akibat kebutuhan air yang semakin meningkat karena pertambahan penduduk. Tim Pengabdian Kepada Masyarakat (PKM) mencoba berpartisipasi menanggulangi banjir dan ketersediaan air tanah dengan membuat Lubang Resapan Biopori. LRB  diharapkan mampu  meresapkan  air  kedalam  tanah dan menjadi solusi banjir serta menjaga ketersediaan air tanah. Pelaksanaan dilakukan dalam 2 tahap yaitu penyuluhan dan pelaksanaan LRB. Penyuluhan meliputi tentang pentingnya LRB, cara membuat, juga perawatan supaya LRB efektif. Pelaksanaan meliputi pembuatan LRB dan pengisian LRB menggunakan sampah organik. Hasil dari kegiatan ini adalah terbentuknya 50 titik LRB di lokasi rawan banjir dan diharapkan efektif mengatasi banjir dan ketersediaan air tanah di lokasi PKM.Kata kunci: banjir, air tanah,  biopori, resapan  ABSTRACTIncreasingly dense population growth in the Pasir Gunung Selatan has caused land to became a lot of housing, road construction, and public facilities that make the land covered with asphalt and concrete. When it rains, water cannot absorb into the ground and cause flooding. Another problem is the decrease in groundwater level. The team of “Pengabdian Kepada Masyarakat (PKM)” participate in tackling flooding and groundwater availability by making a Biopori Infiltration Hole. LRB is expected to be able to absorb water into the ground and be a solution to flooding and maintain the availability of ground water. The implementation was in 2 stages; counseling and LRB implementation. Counseling covers the importance of LRB, how to make it, and also maintenance. The implementation includes making LRB and filling LRB using organic waste. The result of this activity are 50 LRB points in flood-prone locations and is expected to be effective in dealing with floods and availability of ground water in PKM locations.Keywords: flood, groundwater, biopori, infiltration
Analisis Stabilitas Lereng Dengan Perkuatan Geotekstil (Studi Kasus: Proyek Pembangunan Jalan Tol Cibitung - Cilincing Seksi 2 STA 6+475) Pandu Graha Rizqullah; Yelvi Yelvi
Jurnal Ilmiah Rekayasa Sipil Vol 19 No 2 (2022): Oktober 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.v19i2.836

Abstract

Excavation and embankment work on toll roads is a routine work due to the difference of elevation between road and ground existing. This paper This paper will discuss slope stability during earth works at Cibitung - Cilincing Toll Road Project since there are a lot of excavation and embankment works. The slope stability has to be analyzed to determine safety factor (SF). On this paper, embankment slope at STA 6+475 is reinforced by geotextile system. The safety factor is calculated using before and after reinforced by geotextile using Bishop method and PLAXIS software program. The results shows that a safety factor of 1.47 (manually) and 1.201 (PLAXIS) in static condition. For dynamic condition with coefficient of horizontal earthquake of 0,18 is obtained average of safety factor of 0.95 (manually). While the safety factor for analysis with earthquake loads using PLAXIS software program cannot be calculated, then the lateral deformation value is sought, which is 0,505 m. From this result, the slope of existing condition has to be reinforced by geotextile system since SF is less than 1.25. Reinforcement of geotextile system designed is divided into 2 zones, such as: 1.0 m and 0.5 m. Analysis of slope stability of the embankment slopes with geotextile reinforcement system is obtained a safety factor of 1.880. It means that the condition of the existing embankment slopes reachs 64%. While the value of the lateral deformationnof the embankment slope using geotextile renforcement with an earthquake load is 0,034 m, so that this value meets the allowable deformation value.
PENERAPAN GEOTEKSTIL SEBAGAI INOVASI SUMUR RESAPAN UNTUK PENANGGULANGAN BANJIR DAN KETERSEDIAAN AIR TANAH Yelvi Yelvi; Aisyah Salimah; Rikki Sofyan Rizal; Istiatun Istiatun; Arliandy Pratama Arbad
Jurnal Warta Desa (JWD) Vol. 4 No. 3 (2022): Jurnal Warta Desa (JWD)
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jwd.v4i3.200

Abstract

Pemukiman di Kelurahan Beji Timur semakin padat sehingga lahan terbuka hijau semakin sedikit. Akibatnya resapan air ke dalam tanah semakin berkurang. Sehingga pada musim hujan terjadi limpasan air permukaan dan dapat mengakibatkan banjir. Sedangkan pada musim kemarau ketersediaan air tanah menjadi berkurang. Perlu adanya upaya inovatif untuk merekayasa model resapan air yang berkelanjutan, salah satunya melalui sumur resapan. Sumur resapan merupakan salah satu alternatif untuk perlindungan air tanah dan meminimalkan limpasan permukaan, karena sumur resapan mudah diaplikasikan di pemukiman penduduk dan dapat menyeimbangkan penggunaan air tanah. Pada kegiatan ini sumur resapan dibuat ditempat wudhu laki-laki dan perempuan dalam rangka meresapkan air wudhu ke dalam tanah agar dapat menjadi cadangan air tanah. Sumur resapan inovatif ini dibuat dengan memasang geotekstil diseluruh dinding dan dasar sumur resapan sehingga luas penyerapan air lebih banyak dibanding dengan sumur resapan konvensional. Agar posisi geotekstil menjadi kokoh, sekitar 50 cm dari dasar sumur dimasukkan batu kali dan di bagian atas dinding sumur dibuat lebih lebar dan dipasang pasangan bata untuk menahan geotekstil. Warga masyarakat terlibat pada saat persiapan, pelaksanaan maupun pasca pelaksanaan untuk mengetahui bagaimana program ini dapat berjalan dan sesuai dengan yang diharapkan. Luaran yang dihasilkan dalam kegiatan ini adalah Buku dan Paten Sederhana.
PERBANDINGAN DAYA DUKUNG FONDASI TIANG BOR MENGGUNAKAN METODE REESE & WRIGHT DAN MEYERHOF Yelvi Yelvi; Muchsin Farid Habibie; Putera Agung Maha Agung
Construction and Material Journal Vol. 4 No. 3 (2022): Construction and Material Journal Vol. 4 No. 3 November 2022
Publisher : Politeknik Negeri Jakarta

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Abstract

The Serang-Panimbang Toll Road Construction Project is one of the National Strategic Projects (PSN) with a total length of 83,677 km. The main bridge 18, which is one of the projects on the toll road section, has a drill pile foundation for its substructure. The drill pile foundation is a pile foundation that is installed by drilling the ground first, then filling it with reinforcement that has been assembled and cast in concrete. The foundation has a slope that is less than the permitted slope to support the load above it and is built to withstand both vertical and horizontal stresses. This study compared the Reese & Wright method with the Meyerhof method, two bearing capacity estimation techniques. The comparison aims to determine whether the outcomes of the two approaches utilized significantly differ from one another. The findings of the SPT test were used to conduct the analysis of bearing capacity. In this work, drill piles with a 1 m diameter and 15 m depth were used. According to the analysis's findings, the permit's bearing capacity using the Reese & Wright approach was 246.20 tons, however the permit's bearing capacity using the Meyerhof method was found to be 541.87 tons. For the Reese & Wright approach, the single drill pile decreased by 9,07 mm, and the group pile decreased by 25,7 mm; for the Meyerhof method, the single drill pile decreased by 9,17 mm, and the group pile decreased by 25,34 mm. Furthermore, it was found from both methods of calculating the bearing capacity that both stable static loads and dynamic loads work so that the foundation can be categorized (P max < Q single permit). The ratio of the bearing capacity of the single mast permit on the Reese & Wright method compared to the Meyerhof method is 0.478:1. Keywords: Bearing Capacity, Drilled Pile, Stability.
Analisis Stabilitas Lereng Menggunakan Matras dan Cerucuk Bambu pada Projek X Musyaffa Esa Cahya; Intan Juliana; Yelvi Yelvi; Putera Agung Maha Agung; Aldo Wirastana Adinegara; Sony Pramusandi; Muhammad Fathur Rouf Hasan; Rahmat Faizal
Borneo Engineering: Jurnal Teknik Sipil Vol. 9 No. 3 (2025): Volume 9 Nomor 3 Tahun 2025
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v9i3.336

Abstract

The construction of PT. X' depot in Langsa City, Aceh, is located on soft clay soil that requires slope stability analysis for the embankment. This research aims to analyze slope stability using bamboo mattresses and piles as reinforcement to improve the safety factor. The analysis was conducted using manual calculations (Bishop method) and GeoStudio software (also using the Bishop method), under both static conditions and seismic influence (pseudostatic approach with a horizontal seismic coefficient (kh) = 0.18). The manual calculation results showed that the unreinforced slope had a safety factor (SF) of 1.1428 < 1.25 (unstable), which decreased to 0.6711 < 1.1 (unstable) under seismic load. Meanwhile, the GeoStudio software analysis indicated that the unreinforced slope had an SF of 1.256 > 1.25 (stable) but dropped to 0.903 < 1.1 (unstable) under seismic load. The use of 1–4 layers of bamboo piles and matting increased the SF to 1.318–1.35 without seismic influence. Under seismic conditions, the SF of the slope reinforced with 1–4 layers of bamboo piles and matting improved to 0.931–0.97. However, the slope was still considered critical during an earthquake (SF < 1.1).
Co-Authors A&#039;isyah Aisyah Salimah A&#039;isyah Salimah Aisyah Salimah Aldo Wirastana Adinegara Andikanoza Andikanoza Arliandy Pratama Arbad Faizal, Rahmat Husnil Barry Imam H Sasongko Intan Juliana Istiatun Istiatun Muchsin Farid Habibie Muhammad Fathur Rouf Hasan Musyaffa Esa Cahya Pandu Graha Rizqullah Putera Agung Maha Agung Rizal, Rikki Sofyan Sony PRAMUSANDI Suripto Suripto Tri Widya Swastika