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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Sains dan Teknologi Jurnal Informatika Jurnal Teknik Sipil dan Perencanaan APTEK Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Rekayasa Sipil Proceedings ACES (Annual Civil Engineering Seminar) Fondasi: Jurnal Teknik Sipil Jurnal Teknik Sipil Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Journal of Geoscience, Engineering, Environment, and Technology Teras Jurnal International Journal of Artificial Intelligence Research Journal of the Civil Engineering Forum SIKLUS: Jurnal Teknik Sipil Jurnal Rekayasa Sipil Astonjadro Jurnal Infrastruktur Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Pelita Masyarakat IGKOJEI: Jurnal Pengabdian Masyarakat Civil Engineering Collaboration Makara Journal of Technology J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Jurnal Jalan Jembatan
Soewignjo Agus Nugroho
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Veterinary

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Behavior of High-plasticity Clay Stabilized with Lime and Rice Husk Ash Fatnanta, Ferry; Nugroho, Soewignjo Agus; Ongko, Andarsin; Ihsan, Adnan Ruziq
Makara Journal of Technology Vol. 25, No. 3
Publisher : UI Scholars Hub

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Abstract

Soil is an important and fundamental element for building and road construction. However, poor properties of soil can affect the entire construction since the soil will resist the loads transferred from the upper structures. Additives such as cement, lime, and rice husk ash (RHA) can be used as stabilization materials to increase soil strength. This study examined the behavior of stabilized plastic clay mixed with cement, lime, and RHA. The clay stabilization success rate can be measured by the California Bearing Ratio (CBR), unconfined compression strength, and swelling potential. In this study, different mixtures were prepared as samples and tested under various loads: 1, 2, 3, 4, and 5 kPa. The results indicated that the addition of cement, lime, and RHA could effectively reduce the swelling potential of clay. The mixture variations of soil–cement composite 90% + RHA 10% and soil–cement composite 90% + lime 4% + RHA 6% showed the lowest swelling rate.
Mechanical Behavior of Clay Soil Stabilized with Fly Ash and Bottom Ash Nugroho, Soewignjo Agus; Zulnasari, Azra; Fatnanta, Ferry; Putra, Andius Dasa
Makara Journal of Technology Vol. 26, No. 1
Publisher : UI Scholars Hub

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Abstract

Soil is one of the most important aspects of an infrastructure given its functions of receiving and holding structural loads. However, not all soils have good physical and mechanical properties. To overcome those conditions, stabilization of the soil is practiced to meet the technical requirements. This study aims to determine the behavior of high plasticity clay stabilized with lime, fly ash, and bottom ash. These additives can be used as a stabilizing agent to increase soil strength. The percentage of additives varied from 5%–25% then mixed with clay and were tested through the (Unconfined Compression Strength (UCS) test. The UCS test was carried out with 6 treatments, including consecutively non-curing and unsoaked, non-curing and soaked, curing for 7 days and unsoaked, cured for 7 days and soaked, cured for 28 days and unsoaked, and cured for 28 days and soaked. Results show that the UCS value increased along with the span of curing time. Meanwhile, the soaking treatment of the sample decreased the UCS value.
Studi Bentuk Fondasi Dangkal di Atas Tanah Pasir Dengan Model Eksperimen Soewignjo Agus Nugroho; Ferry Fatnanta
Jurnal Fondasi Vol 11, No 2 (2022)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v11i2.9034

Abstract

Distribusi penyebaran beban pada fondasi dangkal terjadi sepanjang lebar pondasi. Beberapa bentuk pondasi dangkal yaitu lajur (strip), lingkaran (circle) bujur sangkar (square), dan persegi panjang (rectangular) dibuat untuk menganalisa pengaruh bentuk pondasi pada luas tapak yang sama terhadap kapasitas dukung pondasi akibat beban vertikal sentris yang bekerja di atas tanah. Pengaruh bentuk fondasi terhadap daya dukung diperkenalkan oleh Terzaghi, Meyerhof, Brich-Hansen, dan Vesic. Pengujian model laboratorium pada tanah pasir dilakukan dengan membuat 3 (tiga) model pondasi bentuk lingkaran, bujur sangkar, dan persegi panjang dengan 3 (tiga) luasan berbeda 100 cm2, 150 cm2 dan 200 cm2. Hasil uji model fisik menunjukan, bentuk bujur sangkar dapat mendukung beban yang lebih besar dari pada bentuk tapak lain dengan luasan sama. Penambahan luasan 50% akan membuat kapasitas dukung fondasi bertambah 102% dan Fondasi dengan luasan tapak dua kali daya dukung fondasi bertambah 157%. Pertambahan daya dukung fondasi bentuk persegi panjang paling tinggi di bandingkan bentuk fondasi lainnya. Ada perbedaan hasil pengujian model dan beberapa rumus empiris, dimana formula empiris menghasilkan peningkatan daya dukung fondasi lebih besar daripada hasil eksperimen akibat pertambahan luas tapak. Interpretasi grafik hubungan beban versus penurunan menggunakan metode Chin menunjukan bahwa hasil mendekati nilai daya dukung fondasi dengan metode Hansen
The Effect of WHA and Lime for Shear Strength of Clay Stabilized by Cement Nugroho, Soewignjo Agus; Ongko, Andarsin; Fatnanta, Ferry; Putra, Agus Ika
Jurnal Teknik Sipil dan Perencanaan Vol 24, No 1 (2022)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v24i1.34380

Abstract

With the use of the additive, the clay's shear strength and bearing capacity increased. Usage waste material, Wooden Hush Ash (WHA), is tiny. The silicate content of WHA is almost the same as RHA. This study aims to utilize ASK for a stabilization material of high plasticity clay to increase shear strength. Unconfined Compression Strength (UCS) tests were performed to compare the UCS value of clay; clay with 5% cement; clay with lime; clay-cement with WHA; clay-cement with lime and WHA; and clay with lime and WHA. Before the UCS test, the sample was separated into two groups: with and without curing for 28 days, and with and without soaking for 4 days. While in conditions unsoaked, the qu value is uniform. Results show, without curing and soaked, qu values of all variations have the same value in the range of 350 kPa to 380 kPa. In conditions with curing 28 days with and without soaked, qu values range from 365 kPa to 485 kPa for mixtures with WHA and a combination of lime with ASK. While adding of 10% lime additive increases the qu value to 1100 kPa UCS testing results prove, with and without curing and soaked, lime is more optimal to increase the value of UCS than WHA. Replacement lime with WHA by 4% to 6% increases the qu value from 160 kPa to 465 kPa and 485 kPa and 110 kPa to 440 kPa to 475 kPa of soaked and unsoaked condition respectively. WHA can be used to reduce lime in soil stabilization.
The community participation on infrastructures and facilities updating data of Teratak Village, Rumbio Jaya Agus Ika Putra; Soewignjo Agus Nugroho; Fajar Restuhadi; Ari Sandhyavitri; Febrizal Febrizal; Iswadi Hasyim Rosma
Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol 8, No 1 (2023): February 2023
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/abdimas.v1i1.8688

Abstract

Village Information System (SID) is an implementation of e-government by the village government. The right of village communities to get real-time information can be hampered due to the skills and abilities of human resources and out-of-date information. The activity is focused on updating Village data and facilities through survey primary data collection. The results of the survey are up-to-date data, are integrated, and can be accessed online. The process of entering data into the SID will be continued by the Village Government Officials who manage the SID, for this reason, there is a need for a special briefing for Village Government Officials in a training activity in updating data on village facilities and infrastructure. Workshops in the form of training, practice and question and answer were carried out with feedback in the form of questionnaires before and after the workshop to assess the success of the program. The survey data that is input to the SID includes health facilities, religious facilities, agriculture, animal husbandry, plantations, educational facilities, village tourism potential, and potential disasters along with their evacuation points. This updated data is expected to be a reference for compiling the Teratak Village Development and workshop activities have been able to improve the ability of village government. 
EFFECT OF ADDING WOOD HUSH ASH ON HIGH PLASTICITY CLAY AGAINST SWELLING VALUE Soewignjo Agus Nugroho; Ferry Fatnanta; Agus Ika Putra
Jurnal Infrastruktur Vol 9 No 1 (2023): Jurnal Infrastruktur
Publisher : Jurnal Infrastruktur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/infrastruktur.v9i1.3989

Abstract

This research is against the background of the large amount of sawdust waste that is not used so that it has the potential to become B3 waste (leakage) due to decomposition. The use of ash from waste incineration such as RHA (rice hush ash), FABA (fly ash, bottom ash) has proven successful in increasing the carrying capacity of clay soils. The combination of ash and cement additives or/and lime, for some cases, also manages to increase the shear strength of the soil. The study aims to utilize sawdust waste ash, WHA (wood hush ash) mixed with cement and/or lime for the stabilization of high plasticity clay. The research method focused on changes in swelling potential and changes in swelling pressure due to the addition of WHA. Several variations of the mixture are made to be able to conclude the best composition of the mixture from these additive ingredients. Sample testing using a Konsolidometer (Oedometer) test kit and swelling measurements by overloading the sample by 1.0 to 5.0 kPa. Samples are printed by compacting using a standard proctor by adding water according to the OMC value of the original soil. The mixture is tested without being muffled and pre-soaked. The swelling test results showed that there was a change in soil type from high plasticity clay (CH) to high plasticity silt (MH). The addition of cement, lime, WHA or a mixture of 2-3 additives is proven to reduce the potential for expansion. The addition of a mixture of additives by 10% reduces the swelling potential to a medium. The addition of lime 10% lowers the swelling potential to Low, while the addition of cement or lime, or WHA of less than 5% does not change the potential to expand the soil. The mixture that best lowers the level of soil development consists of 90% cement soil (95% Clay+5% Cement), 6% lime, and 4% WHA.
Pendampingan penyusunan rencana pembangunan desa berdasarkan SID dan sarana-prasarana: Technical assistance village development base on SID and infrastructure data Agus Ika Putra; Ari Sandhyavitri; Febrizal Febrizal; Iswadi Hasyim Rosma; Soewignjo Agus Nugroho; Syawal Satibi
IGKOJEI: Jurnal Pengabdian Masyarakat Vol. 4 No. 3 (2023): IGKOJEI: Jurnal Pengabdian Masyarakat
Publisher : Fakultas Peternakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46549/igkojei.v4i3.414

Abstract

ABSTRACT  As a new administrative region, Teratak Village, Rumbio Jaya, Kampar has not made the best use of the villages' potential for development. The PkM team at Riau University acts as Technical Assistance (TA), providing training and trainers for infrastructure updates and managing SID. The current infrastructure data entry in SID is used to compile RPJM-Des. Primary field data collection surveys were conducted with village officials and Kukerta students. The Teratak Village SID has been completed and is being used as a tool for new data entry in SID usage and management training. The community's aspirations, the village's vision and mission, and development priorities were used as guidelines for the preparation of the RPJM-Des. Training on using SID and simulating new data inputs as scheduled. The municipality, village officials, UMKM and administrators can enter new data and see the potential of the village in SID. RPJM-Des with participatory principles are evidence of good government (participatory, transparent and accountable). The obstacle to the preparation of RPJM-Des is the current information from the APBD district/province to prioritize village development as it must be in-line.  Keywords: Assistance; Development; Information; Infrastructure; Teratak   ABSTRAK Sebagai wilayah administratif baru, Desa Teratak, Rumbio Jaya, Kampar belum memanfaatkan potensi desa yang ada untuk dikembangkan dengan sebaik-baiknya. Tim PkM Universitas Riau berperan sebagai Technical Assistance (TA), memberikan pelatihan dan trainer untuk pemutakhiran infrastruktur dan pengelolaan SID. Entri data infrastruktur yang ada di SID digunakan untuk menyusun RPJM-Des. Survei pengumpulan data lapangan primer dilakukan terhadap aparat desa dan mahasiswa Kukerta. SID Desa Teratak telah selesai dibangun dan digunakan sebagai alat entri data baru dalam pelatihan penggunaan dan pengelolaan SID. Aspirasi masyarakat, visi dan misi desa, serta prioritas pembangunan dijadikan pedoman penyusunan RPJM-Des. Pelatihan penggunaan SID dan simulasi input data baru sesuai jadwal. Pemerintah kota, perangkat desa, UMKM dan pengurus bisa memasukkan data baru dan melihat potensi desa di SID. RPJM-Des dengan prinsip partisipatif merupakan bukti pemerintahan yang baik (partisipatif, transparan dan akuntabel). Kendala penyusunan RPJM-Des adalah informasi terkini dari APBD kabupaten/provinsi untuk memprioritaskan pembangunan desa karena harus sejalan. Kata kunci: Infomasi; Infrastruktur; Pembangunan; Pendampingan; Teratak
Pendampingan Pada Aparat dan UMKM Desa untuk Peningkatan Ekonomi Simpang Petai-Kampar Agus Ika Putra; Enno Yuniarto; S. Siswanto; Soewignjo Agus Nugroho; Syawal Satibi; K Khairat; Syamsu Herman; Muhammad Saeri; Arisman Adnan
J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Vol 8, No 1 (2024): April 2024
Publisher : IKIP PGRI Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30734/j-abdipamas.v8i1.2812

Abstract

Simpang Petai village was formed due to the expansion of the village in 2008.  As a new village, Simpang Petai lacks facilities to face the challenges of implementing village development. The level of understanding and skills of the village officials for planning system is still very low.  The participation of UMKM in the implementation of village development needs to be carried out and strengthened as one of the bases of village stability and the driving force for improving the village economy.  The PkM Team of the Riau University Village Development Program, as Technical Assistance, helped solve village problems.  Inventarisasi PkM team, compile activities systematically and continuously, to improve the understanding and skills of officials and village communities in the process of preparing and implementing participatory village development planning. The forming of active participation of young people, as drivers of village UMKM, in development as the basis for the resilience of rural communities and the driving force of the village economy.  The activities of Advanced Welding Skills Practice, which with Product orientation, and Management Activities website Desa as the basis for village planning for Community Services and Marketing of Local Products succeeded in improving the economy of UMKM ABSTRAKDesa Simpang Petai terbentuk karena pemekaran desa tahun 2008. Sebagai desa baru, Simpang Petai minim fasilitas menghadapi tantangan melaksanakan pembangunan desa. Tingkat pemahaman dan keterampilan Aparat desa menyusun sistem perencanaan desa masih sangat rendah. Partisipasi UMKM dalam pelaksanaan pembangunan desa perlu dijalankan serta diperkuat sebagai salah satu basis stabilitas desa dan motor penggerak peningkatan Perekonomian desa. Tim Kegiatan Pengabdian Masyarakat Program Bina Desa Universitas Riau, sebagai Technical Assistance, membantu menyelesaikan permasalahan desa. Inventarisasi tim PkM, menyusun kegiatan secara sistematis dan berkesinambungan, yaitu untuk meningkatkan pemahaman dan keterampilan Aparat dan masyarakat desa pada proses penyusunan dan implementasi perencanaan pembangunan desa yang partisipatif. Terbentuknya partisipasi aktif para pemuda, sebagai penggerak UMKM desa, dalam pembangunan sebagai basis ketahanan masyarakat desa dan motor penggerak Perekonomian desa. Kegiatan Praktik Keterampilan Pengelasan Lanjut, yang dengan orientasi Produk, dan Kegiatan Pengelolaan website Desa sebagai basis perencanaan desa untuk Pelayanan Masyarakat dan Pemasaran Produk Lokal berhasil meningkatkan ekonomi UMKM.
Water and Reinforced Effects on Slope: Case Study on District Koto Panjang, Riau, Indonesia Nugroho, Soewignjo Agus; Yusa, Muhamad; Sujatmoko, Bambang; Ongko, Andarsin
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 2 (2024): JGEET Vol 09 No 02 : June (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.2.12604

Abstract

This paper discussed a study case related to slope stability and its analysis. The observation and also research object was a hill side on border area between West Sumatera-Riau, Indonesia. This border area consists of numerous slopes with heterogeneous soil characteristics. This location is also susceptible for having landslides, especially on rainy season. The schemes of this research consisted of collecting samples, laboratory tests, finite element method analysis, and slope`s reinforcement planning with anchors or geosynthetic plates. The soil samples were tested on their actual condition and liquid limit condition. This purposed to predict the failures on slope. Afterwards, some reinforcement plannings need to be done. The results of this researach have shown that on existing condition, the safety factor was 1.262. If the soil reach its liquid limit, the safety factor decreased to 0.568. After the reinforcement planning was done, the safety factor went up to 1.120 and the slope stability could be maintained.
Sensitivity Analysis Based on Physical Properties to Permeability Coefficient of Cohesive Soil Using Artificial Neural Network Fatnanta, Ferry; Suprayogi, Imam; Nugroho, Soewignjo Agus; Satibi, Syawal; Saputra, Riola
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 1 (2024): JGEET Vol 09 No 01 : March (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.1.13536

Abstract

Permeability is the ability of a soil to allow liquids to pass through. Of course the soil has a physical characteristic that can be known by laboratory testing. This study aims to determine the physical properties that most affect the coefficient of cohesive soil permeability using the Artificial Neural Network (ANN) tool, the results obtained will later be matched with actual conditions according to the context of engineering geology. The research method begins with an influence or sensitivity analysis using ANN which will produce a correlation coefficient (R). Then, these results will be compared with the influence analysis based on the value of the coefficient of determination (R2). After that, accuracy and error tests will be carried out using the Mean Absolute Percentage Error (MAPE), the highest accuracy values is categorized as the most influential physical property of the 7 physical property parameters, namely liquid limit, plastic limit, plasticity index, %sand, %fines, %silt, and %clay. Based on the result of the analysis, %fines is the parameter that most influences permeability and is able to make very strong predictions with an R value using an ANN of 0.9941875, an R2 value of 0.6336, an accuracy of 99.6962%, and a MAPE of 0.3038%. These results are compared with the existing empirical equations with an accuracy of 96.4393% and MAPE of 3.5607%. It can be concluded that ANN is more effective and optimal in making predictions. In this case, in the context of engineering geology, the more %fines, the smaller the permeability coefficient of the soil.
Co-Authors ', Muhardi Aditia Siringoringo Adnan Ruziq Ihsan Agus Ika Putra Agus Ika Putra Alridho, Muhammad Faizal Andarsin Ongko Andius Dasa Putra Ari S. Sibarani Ari S. Sibarani Ari Sandhyavitri Ari Sandhyavitri Arie S Sibarani Arie S Sibarani Arisman Adnan Avrilly Zesthree Mauliza Azra Zulnasari Bahrul Junaidi Bambang Sujatmoko Enno Yuniarto Erik Azarya Ginting Ermiyati Fadhilah, Randy Fajar Restuhadi Fakhri, Fakhri Febrizal Ujang Ferry Fatnanta Fikri Hidayat Giri Prayoga Gunawan Wibisono Gunawan Wibisono Gussyafri Hendra Fernando Ihsan, Adnan Ruziq Imam Suprayogi Inna Kurniati Inna Kurniati, Inna Irfan Hasan Jamili, M Joehari K Khairat Khairatu Zaro Khairul Umam Lala Monang Robert Christian Zega Lala Monang Robert Christian Zega Zega Lembasi, Muhammad Khadafi Lingga Panji Subrata, Lingga Panji M Faizal Alridho M. Shoffar Al Hafizh M. Yusuf Agustamar Mamoru Kikumoto Mohammad Saeri Monita Olivia Muhamad Yusa Muhammad Faisal Al Ridho Muhammad Khadafi Lembasi Muhammad Muhshi Muhammad Yusa Muhardi Muhardi Muhardi Novan, Andre Nurdin Nurdin Ongko, Andarsin Prayogo, Giri Puspa Ningrum Raflyatullah Raflyatullah Raflyatullah, Raflyatullah Randhi Saily Reni Suryanita Rian Trikomara Iriana Rofika Ratna Ardiansyah Roni Indra Lesmana Rosma, Iswadi Hasyim Rudy Suryadi, Rudy Rugun Ermina S. Siswanto Safridatul Audah Saputra, Riola Satibi, Syawal Sayoga, Davin Syamsu Herman Syamsul Arifin Unzi Marwan Usman, Fauzan Wulandari, Deny Zega, Christian Robert Zoni Satria Zulnasari, Azra