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Kusumastuti, Dyah Pratiwi
Institut Teknologi Perusahaan Listrik Negara
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Revitalisasi Tempat Pembuangan Sampah Sementara Di Perumahan Buana Gardenia Untuk Peningkatan Kesehatan Lingkungan Dyah Pratiwi Kusumastuti; Indah Handayasari; Irma Sepriyanna; Hastanto Sm
Terang Vol 2 No 2 (2020): TERANG : Jurnal Pengabdian Pada Masyarakat Menerangi Negeri
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/terang.v2i2.987

Abstract

A comfortable and healthy residential area must be supported by the availability of adequate facilities and infrastructure such as the availability of clean water networks, road networks, drainage systems, worship facilities, green open spaces and temporary garbage storage facilities. The available temporary garbage collection sites must be able to accommodate the volume of waste up to the relevant transportation service schedule. However, sometimes transportation delays can occur, so that it can cause problems in residential areas, especially in Buana Gardenia housing such as unpleasant odors and the flow of water that is blocked due to rubbish that falls into the waterways. Waste that falls into the water channel over time can clog the flow of water in it, other than that due to organic rotting in the water channel can cause sedimentation in the bottom of the channel so that the channel becomes shallow. To anticipate the fall of rubbish into the waterways due to the full volume of waste and delays in transportation from related agencies. In the community service activities at the Buana Gardenia housing complex, a temporary garbage shelter will be revitalized. The revitalization results can reduce the waste that falls into the water channel so that the flow of water in the channel flows smoothly, reducing the number of mosquito larvae and puddle when it rains.
Sosialisasi dan Pelatihan Kesehatan dan Keselamatan Kerja (K3) Teknisi Elevator dan Eskalator di PT Pratama Mitra Sejati Jakarta Arief Suardi Nur Chairat; Vendy Antono; Dyah Pratiwi Kusumastuti; Tri Wahyu Oktaviani Putri
Jurnal Pengabdian Masyarakat (ABDIRA) Vol 2, No 3 (2022): Abdira, Juli
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdira.v2i3.154

Abstract

Occupational health and safety (OHS) in every business is the most important factor in order to create a safe and comfortable atmosphere in the work environment so as to increase performance productivity and achieve the business vision and mission. However, the lack of understanding and awareness in applying OHS to every worker, especially technicians who work with high risk, needs special attention. To overcome this, community service activities were carried out in the form of OHS socialization and training for technicians, especially elevator and escalator technicians. OHS socialization and training for elevator and escalator technicians carried out for 2 days with material on elevator and escalator OHS regulations, elevator and escalator operation and maintenance and rescue procedures aimed at increasing the knowledge of each technician. The results of the socialization and training activities showed an increase in understanding of OHS as seen from changes in technician behavior, especially awareness in maintaining the safety of oneself and others in the work environment by using personal protective equipment and complying with safety rules and signs.
STABILITAS LERENG BENDUNGAN LEUWIKERIS DENGAN BANTUAN APLIKASI KOMPUTER Dyah Pratiwi Kusumastuti; Satrio Wardhanu
JURNAL TEKNOLOGIA Vol 5 No 1 (2022): Jurnal Teknologia
Publisher : Aliansi Perguruan Tinggi Badan Usaha Milik Negara (APERTI BUMN)

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Abstract

Bendungan Leuwikeris merupakan bendungan tipe urugan batuan sehingga memiliki kerentanan terhadap bahaya keruntuhan akibat beban material penyusun maupun gaya-gaya luar yang terjadi. Hal tersebut yang mendasari perlunya perhitungan stabilitas lerang bendungan dalam perencanaannya. Analisis stabilitas lereng tubuh bendungan menggunakan bantuan aplikasi komputer dengan membuat simulasi kondisi muka air dan menerapkan kondisi gempa OBE. Simulasi kondisi muka air yang ditinjau dalam analisis adalah kondisi muka air kosong atau setelah kosntruksi, kondisi muka air normal, kondisi muka air banjir dan kondisi muka air surut cepat. Berdasarkan hasil analisis diperoleh bahwa angka keamanan terbesar tanpa penerapan gempa dibagian hulu bendungan adalah 3,251 sedangkan dibagian hilir bendungan 2,657. Untuk angka keamanan lereng tubuh bendungan terbesar dengan penerapan gempa kondisi OBE dibagian hulu bendungan adalah 2,262 dan dibagian hilir bendungan adalah 1,868. Secara keseluruhan angka keamanan lereng tubuh bendungan dalam kondisi aman dan telah memenuhi atau berada diatas batas yang disyaratkan.
PENGARUH WAKTU PENYIMPANAN TERHADAP KARAKTERISTIK MEKANIK TANAH LEMPUNG Dyah Pratiwi Kusumastuti; Arief Suardi Nur Chairat; Ganda Surahman
JURNAL TEKNOLOGIA Vol 5 No 1 (2022): Jurnal Teknologia
Publisher : Aliansi Perguruan Tinggi Badan Usaha Milik Negara (APERTI BUMN)

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Abstract

Pengujian tanah di laboratorium sangat penting untuk dilakukan, karena data hasil pengujian merupakan gambaran atau kondisi tanah yang akan digunakan dalam perencanaan suatu konstruksi. Namun waktu pengujian tidak selalu dapat dilakukan pada saat atau waktu yang sama dengan pengambilan contoh tanah. Pada penelitian ini ditinjau pengaruh waktu pengujian terhadap nilai parameter kuat geser berdasarkan uji kuat geser langsung dan kuat tekan bebas. Waktu pengujian divariasikan mulai dari 0 hari, 7 hari dan 14 hari dari waktu pengambilan contoh tanah dengan benda uji yang dipadatkan kembali tanpa melihat kondisi penyimpanan contoh tanahnya. Berdasarkan hasil penelitian didapatkan bahwa parameter kuat geser contoh tanah dipadatkan dipengaruhi oleh waktu pengujian, kadar air dan proses pemadatannya. Dimana pada pengujian kuat geser langsung pada hari ke – 7 dengan kadar air 42,26% didapatkan nilai kohesi 14,94 kN/m2 dibandingkan pengujian 0 hari dengan kadar air 38,44% dengan nilai kohesi mencapai 37,74 kN/m2. Dan pada pengujian kuat tekan bebas pada hari ke – 7 dengan kadar air 51,06% didapatkan nilai cu 28,89 kN/m2 dan qu 57,78 kN/m2 dibandingkan pada pengujian 0 hari dengan kadar air 35,68% didapatkan nilai cu dan qu yang lebih dari 100 kN/m2.
PENGARUH PENAMBAHAN SERBUK ARANG CANGKANG SAWIT TERHADAP KUAT GESER LANGSUNG PADA TANAH LEMPUNG Dyah Pratiwi Kusumastuti; Irma Sepriyanna; Arief Suardi Nur Chairat
Konstruksia Vol 14, No 1 (2022): Jurnal Konstruksia Vol 14 No. 1 Tahun 2022
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jk.14.1.33-39

Abstract

Salah satu jenis tanah berbutir halus adalah tanah lempung yang memiliki sifat kohesi dengan tingkat plastisitas yang rendah sampai dengan tinggi dan daya dukung yang rendah. Tingginya tingkat plastisitas dapat menyebabkan tingginya potensi mengembang tanah lempung. Untuk mengurangi plastisitas dan meningkatkan daya dukung pada tanah lempung  sehingga perlu adanya perbaikan parameternya. Metode perbaikan yang sederhana adalah stabilisasi kimia. Pada penelitian ini digunakan serbuk arang cangkang sawit sebagai bahan stabilisasi tanah lempung. Serbuk arang cangkang sawit yang ditambahkan berdasarkan berat kering tanah bervariasi mulai 5%, 10% dan 15%. Penambahan serbuk arang cangkang sawit tersebut bertujuan untuk mengetahui pengaruhnya terhadap plastisitas dan parameter kuat geser tanah lempung. Hasil pengujian di laboratorium didapatkan tingkat plastisitas tanah lempung menurun seiring dengan penambahan serbuk arang cangkang sawit. Sedangkan untuk parameter kuat geser diketahui bahwa nilai kohesi mencapai nilai optimum dengan variasi penambahan serbuk arang cangkang sawit 10% dengan nilai sebesar 44,04 kPa. Namun hal tersebut tidak berlaku dengan nilai sudut geser dalam yang semakin lama semakin meningkat seiring dengan bertambahnya serbuk arang cangkang sawit. Penambahan serbuk arang cangkang sawit pada tanah lempung dapat menyebabkan hilangnya sifat kohesif dan tanah lempung menjadi lebih berbutir.
PANEN HUJAN SEBAGAI SUMBER AIR ALTERNATIF DI SEKOLAH AS SHOLIHIN, CIPONDOH, TANGERANG Dyah Pratiwi Kusumastuti; Irma Wirantina Kustanrika; Arief Suardi Nur Chairat; Sely Karmila
Abdimas Galuh Vol 4, No 2 (2022): September 2022
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ag.v4i2.7344

Abstract

Air merupakan salah satu kebutuhan utama masyarakat yang tidak tergantikan, dan sumber-sumber air yang sering dimanfaatkan berasal dari air tanah. Penggunaan air tanah yang berlebihan dapat mengakibatkan penurunan permukaan tanah serta penurunan kualitas dan jumlah air tanah yang tersimpan.Beberapa langkah yang telah dilakukan untuk membatasi penggunaan air tanah, salah satunya adalah penggunaan air hujan sebagai sumber daya air alternatif melalui sistem panen hujan. Sekolah As Sholihin, Cipondoh, Kota Tangerang sebagai salah satu sekolah yang masih mengandalkan air tanah sebagai sumber untuk memenuhi kebutuhan akan air bersih. Melalui kegiatan Pengabdian kepada Masyarakat, tim memberikan solusi pemecahan masalah tersebut dengan menerapkan sistem panen hujan sederhana. Air hujan yang tertampung di dalam tandon dapat digunakan sebagai air wudhu dan kebutuhan air di dalam toilet. Selain itu, dengan adanya penerapan sistem panen hujan di lingkungan sekolah dapat memberikan contoh kepada masyarakat di sekitar mengenai pemanfaatan air sebagai sumber daya air alternatif melalui penerapan sistem panen hujan sederhana.
Perbandingan Metode Fellenius dan Bishop pada Stabilitas Lereng Bendungan Leuwikeris dengan Bantuan Aplikasi Komputer Satrio Wardhanu; Dyah Pratiwi Kusumastuti
RekaRacana: Jurnal Teknil Sipil Vol 8, No 2: Juli 2022
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaracana.v8i2.111

Abstract

ABSTRAKBendungan Leuwikeris merupakan bendungan tipe urugan batuan sehingga memiliki kerentanan terhadap bahaya keruntuhan akibat beban material penyusun maupun gaya-gaya luar yang terjadi. Hal tersebut yang mendasari perlunya perhitungan stabilitas lerang bendungan dalam perencanaannya. Analisis stabilitas lereng tubuh bendungan menggunakan bantuan aplikasi komputer dengan membuat simulasi kondisi muka air dan menerapkan kondisi gempa OBE. Simulasi kondisi muka air yang ditinjau dalam analisis adalah kondisi muka air kosong atau setelah kosntruksi, kondisi muka air normal, kondisi muka air banjir dan kondisi muka air surut cepat. Berdasarkan hasil analisis diperoleh bahwa angka keamanan terbesar tanpa penerapan gempa dibagian hulu bendungan adalah 3,251 sedangkan  dibagian hilir bendungan 2,657. Untuk angka keamanan lereng tubuh bendungan terbesar dengan penerapan gempa kondisi OBE dibagian hulu bendungan adalah 2,262 dan dibagian hilir bendungan adalah 1,868. Secara keseluruhan angka keamanan lereng tubuh bendungan dalam kondisi aman dan telah memenuhi atau berada diatas batas yang disyaratkan.Kata kunci: stabilitas lereng, tubuh bendungan, angka keamananABSTRACTThe Leuwikeris dam is a rockfill type so it has a vulnerability to the danger of collapse due to the load of the constituent materials and external forces that occur. This is what underlies the need for calculating the slope stability in its design. Analysis of the slope stability using computer applications by simulating water level conditions and applying earthquake conditions. Simulations of water level conditions that are reviewed in the analysis are after construction, normal, floods and rapid drawdown conditions. Based on the results of the analysis, it was found that the greatest safety factor without an earthquake condition in the upstream of the dam was 3.251 while the downstream was 2.657. For the safety factor of the largest dam slope with the application of an earthquake condition upstream of the dam is 2.262 and downstream is 1.868. Overall, the safety factor for the slopes of the dam is in a safe condition and has met or is above the required limits.Keywords: slope stability, dam, safety factor
The Effect of Wood Charcoal Powder and Pumice Powder on The Parameters of Shear Strength of Clay Soil Raisya Fithria; Dyah Pratiwi Kusumastuti
Indonesian Geotechnical Journal Vol. 1 No. 2 (2022): Vol.1 , No.2, August 2022
Publisher : Himpunan Ahli Teknik Tanah Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (840.995 KB) | DOI: 10.56144/igj.v1i2.14

Abstract

Soil as a foundation must have sufficient bearing capacity when receiving the load acting on it. However, not all soil types have these characteristics, especially soft clay. The problems encountered in soft clay for construction are generally large settlements and low bearing capacity. Overcoming the problem of lack of bearing capacity in soft clay can be done with improvements. A simple improvement is done by the chemical stabilization method. Chemical stabilization is carried out by mixing soft clay and other materials such as pumice powder and wood charcoal powder. Variations in the addition of these materials in the study were 2% and 4% pumice powder and 15%, 20%, and 25% wood charcoal powder. Based on the test results, it was found that the increase in pumice powder and wood charcoal powder caused changes in physical and mechanical parameters in the soil sample. For physical parameters due to the addition of pumice powder and wood charcoal powder, the water content and liquid limit values ​​decreased, while the specific gravity values, plastic limits, and shrinkage limits in the soil samples increased compared to the original soil samples. Meanwhile, the mechanical parameters in terms of the unconfined compressive strength test, due to the addition of pumice powder and wood charcoal powder caused the value of the unconfined compressive strength (qu) and the undrained shear strength (su) to increase. The biggest change in the parameters of the unconfined compressive strength and undrained shear strength of the soil sample was found in the addition of 4% pumice powder and 25% wood charcoal powder with an increase of 15.58% compared to the original soil sample.
Analisis Daya Dukung Dan Penurunan Kelompok Tiang Bor Pada Menara Transmisi SUTT Dyah Pratiwi Kusumastuti; Alfinia Milanova
FORUM MEKANIKA Vol. 12 No. 1 (2023): JURNAL FORUM MEKANIKA
Publisher : Sekolah Tinggi Teknik - PLN

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Abstract

In planning the foundation must look at the condition of the subsoil and the situation in the field. drilled piles are mostly chosen if the soil layer in the field is dominated by soft soil and the work area is densely packed with buildings. The 150 kV SUTT transmission tower in Teluk Naga uses drilled piles because the soil layer is dominated by soft soil 12 m thick from the surface and the environment is submerged in water making it impossible to erect. To determine the stability of the foundation there are several factors that need to be reviewed, including bearing capacity and settlement. Bearing capacity analysis on drilled pile foundations can be carried out based on standard penetration test data using the O'neill and Reese method, while settlement calculations can use the Vesic method. The carrying capacity of the group piles obtained in this study was calculated by varying the diameter of 40 cm, 60 cm and 80 cm respectively of 4426.51 kN, 4613.18 kN and 4682.58 kN. While the group piles settlement that occurs is the total of elastic settlement and consolidation settlement of 88.73 mm at 40 cm diameter, 83.37 mm at 60 cm diameter and 85.14 mm at 80 cm diameter.
Penggunaan Data SPT dalam Penentuan Potensi Likuifaksi di Kota Solok Atikah Harliz; Dyah Pratiwi Kusumastuti
Jurnal Sipil Krisna Vol 9 No 1 (2023): Jurnal Sipil Krisna
Publisher : Fakultas Teknik Universitas Krisnadwipayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61488/sipilkrisna.v9i1.252

Abstract

The area of West Sumatra which is at the confluence of 2 tectonic plates and 2 faults makes the area prone to earthquakes. One of the cities that has experienced an earthquake is Solok. One of the impacts of earthquakes is liquefaction events, namely the loss of strength of the sand layer due to increased pore water pressure. So that in planning construction in Solok it is necessary to review the potential for liquefaction in order to reduce construction damage and prevent liquefaction. To find out the potential for liquefaction as expressed by the value of the safety factor, it can be analyzed using standard penetration test data, namely N-SPT. The safety factor used in this study is the probability of 500 years and 2500 years. The results of the analysis of the safety factor obtained show that at each depth of the soil layer under review it has a value of < 1 so that the potential for liquefaction is quite high. The lowest safety factor is obtained at a depth of 4 – 6 m for a 500 year probability and 6 -7 m for a 2500 year probability which ranges from 0,12 – 0,16.
Co-Authors Abdul Rokhman Ade Caswito Ade Caswito Alfinia Milanova Anik Sarminingsih Arief Suardi Nur Chairat Asnul, Nur Shania Atikah Harliz Chairat, Arief Suardi Nur Dearman Hasiholan Saragih Desiawan, Victor Assani Dody, Dody Hastanto SM Hastanto Sm Hendri Hendri Husna Alghoida Indah Handayasari Indah Handayasari Indah Handayasari Indah Handayasari, Indah Irma Sepriyanna Irma Sepriyanna Irma Sepriyanna Sepriyanna kustanrika, irma wirantina Lia Nur Octavia Lili Rasyidi Muhammad Audito Alfansyah Muhammad Ridwan Nasril Sany Prayudi Prayudi Raisya Fithria Satrio Wardhanu Satrio Wardhanu Sely Karmila Surahman, Ganda Tri Wahyu Oktaviana Putri Tri Wahyu Oktaviani Putri Vaza, Hery Vendy Antono Wahyunungsih, Utami Yulita Arni Priastiwi