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All Journal Innofarm : Jurnal Inovasi Pertanian JBTI : Jurnal Bisnis : Teori dan Implementasi Jurnal Review Pendidikan dan Pengajaran (JRPP) Respati JNANALOKA Nusantara Hasana Journal Jurnal Riset dan Pengabdian Interdisipliner
Jarwanto Jarwanto
Universitas Muhammadiyah Yogyakarta
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Nursing Social Sciences Transportation Other

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UJI PEMOMPAAN AIR TANAH METODE STEP DRAW DOWN UNTUK MENGETAHUI DEBIT OPTIMUM KEMAMPUAN SUMUR BOR Jarwanto, Jarwanto
Innofarm:Jurnal Inovasi Pertanian Vol 21, No 1 (2019): Innofarm: Jurnal Inovasi Pertanian
Publisher : FAKULTAS PERTANIAN UNIVERSITAS SLAMET RIYADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (496.28 KB)

Abstract

Uji pemompaan dalam kaitannya dengan kemampuan sumur terhadap akuifer dalam penyediaan air dalam tubuh formasi batuan. Pengukuran ini didapat dari respon terhadap kenaikan maupun penurunan air saat dilakukan pemompaan dengan melalui 3 tahap (step) perlakuan dengan posisi Q1, Q2 dan Q3. Posisi Q3 maksimum pompa yang digunakan, Q2 didapat dari setengah dari nilai Q3, Q1 setengah dari Q2 (paling kecil). Pemompaan selama 960 menit tanpa henti dari 3 step akan menurunkan muka air tanah dengan panjang 47,75 meter. Recovery kembali ke muka air tanah semula selama 390 menit. Dengan pendekatan tabel didapatkan nilai optimum dalam pemompaan sebesar 1,7 liter/detik dengan posisi muka air tanah stabil dan seimbang yang dihitung dari ketersediaan air dalam formasi batuan/tanah dengan pemompaan yang dilakukan terus menerus tanpa henti. Sumur bor dapat difungsikan untuk kegiatan usaha maupun rumah tangga bahkan untuk pengairan persawahan/pertanian lainnya.
Analisis Pengaruh Iklim Organisasi Dan Motivasi Terhadap Kinerja Pegawai Badan Pusat Statistik Provinsi Daerah Istimewa Yogyakarta Jarwanto, Jarwanto
JBTI : Jurnal Bisnis : Teori dan Implementasi Vol 5, No 2 (2014): Oktober 2014
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jbti.v5i2.1385

Abstract

The purpose of this research is to look at the effect of organizational climate, the  need  for  achievement,  the  need  for  power,  and  the  need  for  affiliation  on  the performance of the employees of BPS Special Province of Yogyakarta. The objects of this research are all employees in BPS D.I Yogyakarta totaling 75 people. The data collection was conducted by distributing questionnaires addressed to the employees to  obtain  an  answer  for  each  item  of  respondents'  perception  of  the  variable statement.  Of  the  total  questionnaires  distributed,  70  questionnaires were  returned and  readily  processed.  The  data  analysis  method  used  was  multiple  regression analysis to examine the effect of organizational climate, the need for achievement,the need for power, and the need for affiliation on performance.The test conducted partially showed that organizational climate, the need for achievement have a significant positive impact on the performance of the employees of BPS D.I Yogyakarta. On the other hand the need for affiliation and the need for power  does  not  affect  the  performance  of  the  employees  of  BPS  D.I  Yogyakarta. While  the  test  conducted  simultaneously  showed  that  organizational  climate,  the need  for  achievement,  the  need  for  power,  and  the  need  for  affiliation  have  a significant   positive  impact   on   the   performance   of   the   employees   of   BPS   D.I Yogyakarta. The need for achievement has a dominant influence on the performance of the employees of BPS D.I Yogyakarta.Keywords:  Organizational  Climate,  Need Fo Power,Need Fo Achievement,Need  For Affiliation,  And Performance
Perbandingan Penggunaan Data Hasil Pengukuran Awal Dengan Pengukuran Kedua Menggunakan Software Autocad Landesktop 2009 Jarwanto, Jarwanto
Jurnal Teknologi Informasi RESPATI Vol 17, No 1 (2022)
Publisher : Universitas Respati Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35842/jtir.v17i1.441

Abstract

INTISARIPenelitian dilakukan pada area tambang batu split atau batuan beku ultrabasa, terletak di daerah Awangbangkal, Kecamatan Karangintan, Kabupaten Banjar, Provinsi Kalimantan Selatan. Data yang digunakan terdapat 2 data yang dapat disebandingkan. Data pertama adalah data yang telah didapatkan sebelumnya namun kurang detil bila dibandingkan data terakhir. Data yang kedua dimungkinkan adalah data yang cukup detil karena sudah menggunakan peralatan sederhana namun lebih baik daripada saat pengambilan data pertama. Entrey data untuk kedua data adalah sama mulai dari pengolahan secara manual, pengolahan menggunakan Microsoft excel, hingga ke Notepad. Pada entry data menggunakan Software Autocad Landesktop 2009, terlihat data pertama kurang detil, sehingga untuk data kedua yang lebih detil dapat dihubungkan dengan hasil potret pada googlemap. Overlay  antara data titik koordinat dengan hasil potret google map, terlihat lebih realistis karena dapat secara langsung mengetahui tinggi rendah elevasi pada lahan. Titik titik berupa point yang ditampilkan dapat dibuat kontur yang selanjutnya dapat dibuat penampang melintang atau irisan dengan visualisasi atau dapat dilihat dari samping. Hasil keseluruhan analisa dibuat skor, hasil skor menunjukkan bahwa data 2 lebih baik hasilnya dibandingkan dengan data pertama.Kata kunci — Data Pertama, Data Kedua, Autocad Landesktop 2009. ABSTRACTThe research was conducted in a split rock quarry area or ultramafic igneous rock, located in the Awangbangkal area, Karangintan District, Banjar Regency, South Kalimantan Province. The data used there are 2 data that can be compared. The first data is data that has been obtained previously but is less detailed when compared to the last data. The second possible data is data that is quite accurate because it uses simple equipment but is better than the first data collection. The input data for the second data is the same starting from manual processing, processing using Microsoft excel, to Notepad. In data entry using Autocad Landesktop 2009 software, the first data is less detailed, so the second data which is more detailed can be seen with portrait results on googlemap. The overlay between the coordinate point data and the results of the google map portrait looks more realistic because it can immediately find out the low altitude on the land. The points in the form of points that are displayed can be contoured which can then be made transverse or transverse lines with visualization or can be seen from the side. Overall results The analysis is scored, the score results show that data 2 results are better than the first data.Keyword — First Data, Data 2, Autocad Landesktop 2009.
PEMBAHASAN SOAL-SOAL UNTUK MENGHADAPI UJIAN MASUK PERGURUAN TINGGI DAN PELUANG UNTUK MASUK DUNIA KERJA BIDANG GEOLOGI DAN TAMBANG PADA SISWA SMK SABUMI BANJARBARU Jarwanto, Jarwanto
Nusantara Hasana Journal Vol. 4 No. 3 (2024): Nusantara Hasana Journal, August 2024
Publisher : Yayasan Nusantara Hasana Berdikari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59003/nhj.v4i3.1204

Abstract

This community service activity is entitled Discussion of Questions to Face the College Entrance Exam and Opportunities to Enter the World of Work in the Field of Geology and Mining for Students of SMK Sabumi Banjarbaru. Community Service Activities (PKM) for SMK Sabumi Mining students aim to provide real benefits both for the students themselves and for the surrounding community. The method of implementing the activity is carried out by means of lectures and practices related to college entrance exam questions and opportunities to enter the world of work in the fields of geology and mining. The results of this activity are that participants have knowledge and understanding in earth science and mining. Participants have knowledge and understanding in preparing students for internships and entering the world of work and will continue their undergraduate studies. Participants are given tips on working while studying, especially studying at the University of AKPRIND Indonesia by entering the employee class.
PERHITUNGAN VOLUME BATUAN MENGGUNAKAN SOFTWARE AUTOCAD CIVIL 3D DENGAN METODE RULE OF GRADUAL CHANGE DAN RULE OF NEAREST POINT Jarwanto, Jarwanto; Arie Noor Rakhman; Himawan Rico Sanjaya
Nusantara Hasana Journal Vol. 4 No. 8 (2025): Nusantara Hasana Journal, January 2025
Publisher : Yayasan Nusantara Hasana Berdikari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59003/nhj.v4i8.1322

Abstract

The research was conducted in an area located in Segoroyoso, Kapanewon Pleret, Bantul Regency, Yogyakarta Special Region Province. The enclosing rocks are part of the Semilir Formation in the form of tuff interspersed with lapilli. The rock located on this cliff will be cut with a length of 83 meters and a height of 36 meters with the aim of making a flat horizontal plane with an elevation of 50 meters above sea level which will then be made into building construction for the purposes of erecting boarding school buildings. The calculation of rock volume is based on Autocad Civil 3D software with the emphasis on 2 calculation methods, namely calculations using the Rule of Gradual Change and getting a volume of 106,714 m3 and according to the Rule of Nearest Point method getting a volume of 106,495 m3. There is a difference in the calculation results but the difference is not far adrift.
Pengembangan Metode SMR dengan Koreksi RMR89: Peningkatan Akurasi Analisis Kestabilan Lereng Andesit di Ruas Jalan Goa Jepang, Jelapan, Bantul Rakhman, Arie Noor; Maulana, Fivry Wellda; Jarwanto, Jarwanto
JNANALOKA Vol. 06 No. 01 Maret Tahun 2025
Publisher : Lentera Dua Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36802/jnanaloka.2025.v6-no1-13-25

Abstract

Stabilitas lereng merupakan aspek krusial dalam perencanaan infrastruktur, terutama di daerah dengan kondisi geologi kompleks. Penelitian ini berfokus pada analisis stabilitas lereng di Ruas Jalan Goa Jepang, Jelapan, Bantul, yang tersusun oleh batuan andesit dari Formasi Nglanggran dengan zona diskontinuitas geologi yang berpotensi menyebabkan ketidakstabilan lereng. Untuk mengevaluasi stabilitas lereng, digunakan metode Slope Mass Rating (SMR) yang dikembangkan dari Rock Mass Rating (RMR). Metode ini mempertimbangkan faktor koreksi orientasi diskontinuitas terhadap lereng guna memberikan hasil yang lebih representatif. Data diperoleh melalui survei geologi lapangan dan pengujian laboratorium, mencakup parameter geoteknik seperti kekuatan batuan, kondisi diskontinuitas, serta orientasi bidang lemah. Hasil penelitian menunjukkan bahwa nilai SMR berkisar antara 75,39 hingga 87,03, mengindikasikan kualitas massa batuan dalam kategori sedang hingga sangat baik. Korelasi antara RMR79 dan SMR lebih tinggi (R = 0,846) dibandingkan dengan RMR89 dan SMR (R = 0,419), menunjukkan bahwa SMR masih sangat bergantung pada RMR79. Namun, RMR89 dengan rentang nilai 25 hingga 30 terbukti lebih sensitif dalam mengidentifikasi potensi ketidakstabilan lereng dalam kategori buruk yang tidak terdeteksi oleh metode RMR79 dengan rentang nilai 43 hingga 72. Temuan ini menunjukkan bahwa kombinasi RMR89 dan SMR dapat menjadi pendekatan yang lebih akurat dalam mengevaluasi stabilitas lereng, terutama di daerah dengan geologi kompleks.
Penerapan Teknologi Tepat Guna untuk Mendukung Ketahanan Air Bersih di Ngoresan, Surakarta Jarwanto, Jarwanto; Rakhman, Arie Noor; Maulana, Fivry Wellda
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Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jrpi.v2i3.32648

Abstract

Meeting clean water needs in densely populated areas such as Ngoresan, Surakarta City, is a major challenge, especially during the dry season when well discharge declines. This community service initiative aims to enhance clean water resilience in Ngoresan through the application of groundwater drilling technology informed by geological studies. The activities include site survey, equipment installation, drilling, aquifer identification, water quality analysis, community education, and joint evaluation. Drilling identified a productive aquifer at a depth of 25.7 meters within Merapi volcanic rock, with the final well reaching 62.5 meters. Water quality analysis confirmed it is safe for consumption. Community participation in education and facility maintenance strengthens the sustainability of the program. This initiative not only provides a reliable water source but also fosters awareness of groundwater conservation and the risks of over-extraction, thereby enhancing local resilience in water availability.
MODFLOW DAN FEFLOW UNTUK PEMODELAN HIDROGEOLOGI PADA AREA TAMBANG BATUBARA DI KALIMANTAN SELATAN Jarwanto, Jarwanto; Arie Noor Rakhman
Nusantara Hasana Journal Vol. 5 No. 1 (2025): Nusantara Hasana Journal, June 2025
Publisher : Yayasan Nusantara Hasana Berdikari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59003/nhj.v5i1.1613

Abstract

This study aims to compare the capabilities of MODFLOW and FEFLOW software in modeling groundwater flow in open-pit mining environments with complex geometries. The method includes literature review, technical feature analysis of both software, and evaluation of simulation performance based on hydrogeological parameters and geospatial conditions. The results show that MODFLOW offers advantages in accessibility due to its open-source nature and is efficient for mining areas with relatively simple geometries. However, its limitation in grid flexibility reduces its ability to accurately represent complex morphologies and geological structures. In contrast, FEFLOW provides higher flexibility through an unstructured mesh system and integrates saturated–unsaturated flow in a single model, making it more suitable for advanced hydrogeological modeling. FEFLOW's capability to represent irregular mining geometries, simulate chemical reactions, and provide 3D visualizations is highly relevant for mining conditions in Indonesia, although it is limited by higher computational demand and licensing costs. This study offers valuable insights into selecting groundwater modeling software based on geological complexity and mining analysis objectives.
PELATIHAN PRAKTIK ILMU YANG BERKAITAN DENGAN PELEDAKAN BATUAN DAN PENGANTAR ILMU KETEKNIKAN KEPADA SISWA SMKN 4 PALANGKARAYA Jarwanto, Jarwanto
Nusantara Hasana Journal Vol. 4 No. 12 (2025): Nusantara Hasana Journal, May 2025
Publisher : Yayasan Nusantara Hasana Berdikari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59003/nhj.v4i12.1614

Abstract

This Community Service activity is entitled "practical training related to rock blasting and an introduction to engineering science for students at SMKN 4 Palangkaraya." The objectives of this activity are to strengthen the relationship between the school and the community, apply students' knowledge and skills, develop soft skills, increase social and environmental awareness, and introduce the world of mining in a positive way. The activity method used is lectures or counseling and practical exercises at SMKN 4 Palangkaraya. The results of this activity are: Implementation of the Community Service Program (PKM) is carried out by providing students with mastery of understanding and skills in dealing with learning methods and mastering the material. Direct understanding is achieved through practical methods in the field regarding the blasting process, which is preceded by an opening and introductory activity on the rock blasting process. Following the field activity, a Zoom meeting was conducted directly from the AKPRIND Indonesia University campus by lecturers in the Geological Engineering Study Program, presenting material on rocks, minerals, engineering, and petroleum.
ANALISIS PERMEABILITAS TANAH SEBAGAI UPAYA PENANGANAN GENANGAN AIR DI KECAMATAN BANJARBARU UTARA, KALIMANTAN SELATAN Jarwanto, Jarwanto; Annisa, Annisa; Sihombing, T.
Jurnal Review Pendidikan dan Pengajaran Vol. 7 No. 2 (2024): Volume 7 No. 2 Tahun 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jrpp.v7i2.26736

Abstract

Genangan air yang ada di beberapa lokasi di Kecamatan Banjarbaru Utara, Kota Banjarbaru, Provinsi Kalimantan Selatan, yang disebabkan oleh curah hujan tinggi menjadi hal yang perlu ditangani. Lokasi-lokasi tersebut didominasi oleh batulempung, yang merupakan litologi umum di wilayah tersebut. Dalam penelitian ini, dilakukan pengukuran koefisien permeabilitas tanah untuk memahami kemampuan tanah dalam menyerap air. Pengukuran dilakukan menggunakan metode falling head test pada sampel tanah dengan kedalaman kurang dari 1 meter dari permukaan tanah. Data koefisien permeabilitas diperoleh dari tiga percobaan yang dilakukan pada sampel-sampel yang berbeda. Hasil percobaan menunjukkan variasi dalam tingkat koefisien permeabilitas antara sampel-sampel yang diuji. Sampel dengan koefisien permeabilitas tertinggi menunjukkan kemampuan terbaik dalam mengalirkan air, sementara sampel dengan koefisien permeabilitas terendah memiliki kemampuan yang lebih rendah. Secara keseluruhan, hasil ini memberikan pemahaman tentang karakteristik permeabilitas tanah di wilayah tersebut. Hal ini penting untuk pengembangan strategi penanganan genangan air, termasuk perencanaan drainase dan pengelolaan sumber daya air di masa depan.
Co-Authors Annisa Annisa Arie Noor Rakhman Arie Noor Rakhman Fivry Wellda Maulana Himawan Rico Sanjaya Sihombing, T.