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All Journal The Indonesian Journal of Business Administration Jurnal Teknik Sipil dan Perencanaan Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik PHENOMENON STOMATOGNATIC- Jurnal Kedokteran Gigi Insisiva Dental Journal : Majalah Kedokteran Gigi Insisiva Phenomenon : Jurnal Pendidikan MIPA Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil JURNAL PROFESI KEGURUAN Pondasi Journal of Advanced Civil and Environmental Engineering Science and Physics Education Journal (SPEJ) Educatio Rang Teknik Journal BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Portal: Jurnal Teknik Sipil JURNAL INOVASI PENDIDIKAN MATEMATIKA (JIPM) Jurnal Sisfotek Global Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Sosial dan Teknologi Jurnal Ilmiah Wahana Pendidikan Jurnal Locus Penelitian dan Pengabdian Journal of Student Development Informatics Management (JoSDIM) Edukasia: Jurnal Pendidikan dan Pembelajaran Public Administration Journal (PAJ) Journal of Law, Poliitic and Humanities Jurnal Penelitian Rumpun Ilmu Teknik Innovative: Journal Of Social Science Research Jurnal Ilmiah Sultan Agung Science and Education Journal JIeTri : Journal of Industrial Engineering Tridinanti Advance Sustainable Science, Engineering and Technology (ASSET)
Abdul Rochim
Fakultas Kedokteran Gigi Universitas Jember
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Journal : Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil

 1 
KAJIAN FAKTOR-FAKTOR YANG MENDUKUNG DAN TIDAK MENDUKUNG PERLUASAN LAYANAN BUS RAPID TRANSIT (BRT) TRANS JATENG (Studi Kasus: Koridor 1 Bawen ”“ Tawang Rute Menjadi Salatiga ”“ Tawang) Nugraheni, Desi Wulan; Rochim, Abdul; Karlinasari, Rinda
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 29 No. 1 (2024): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v29i1.5661

Abstract

The high public interest in the Semarang City, Semarang Regency, and Salatiga City areas towards the Trans Jateng BRT service has become the basis for the expansion of the Trans Jateng BRT service from corridor 1 Bawen-Tawang route to Salatiga-Tawang, which is much needed. Therefore, the aim of this research is to identify factors that support and oppose the expansion of the Trans Jateng BRT service from corridor 1 Bawen-Tawang route to Salatiga-Tawang and to find appropriate strategies to address the differences between supporting and opposing factors for the expansion of this service. This study employs a descriptive qualitative approach using the Delphi method and SWOT analysis. The research findings indicate that there are 24 factors supporting the expansion of the Trans Jateng BRT service, categorized into transportation infrastructure availability, community support, regional development plans, economic factors, government support, and the success of the Trans Jateng service. There are 15 factors opposing the expansion of the Trans Jateng BRT service, categorized into transportation infrastructure inadequacy, stakeholder disagreement, budget constraints and financial resources limitations, as well as low public awareness and education. The strategy to address the differences between supporting and opposing factors for the expansion of the Trans Jateng BRT service from corridor 1 Bawen-Tawang route to Salatiga-Tawang is the stable growth strategy.
STUDI METODE PERKUATAN LERENG MENGGUNAKAN GEOMAT, SHOTCRETE, DAN SOIL NAILING (Studi Kasus: Lereng Spillway Bendungan Sadarwana Paket II Subang) Putra, Sahal Priyono; Rochim, Abdul; Sumirin, Sumirin
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 28 No. 1 (2023): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v28i1.4562

Abstract

The landslide of the upper slope in the excavation work of the spillway SadawarnaDam Package II Subang occurred after rain, precisely at the STA location from0+500 to 0+520. The purpose of the study was to compare soil reinforcement on theprevious spillway slope using geomat and shotcrete with soil reinforcement usingsoil nailing. Based on soil data the spillway slope consists of two types of slopes, theupper slope consists of CL (BS:03) while the lower consists of ML (BS:04). Theshear strength parameters C and Phi of both slope soils are quite high. Using PlaxisV.21, Slope/W and Seep/W, with C and Phi the slopes were found to be stable.However, in reality there was a landslide on the upper slope. Therefore, backanalysis was performed by lowering the strength parameters of the top soil adjacentto the slope until the landslide was realized. The reinforcement used on the twoslopes was different, the upper slope used geomat while the lower slope usedshotcrete, then the geomat was changed to soil nailing. Two seasonal models wereapplied to all reinforcements. The results showed that the factor of safety valuesfrom the back analysis modeling in the wet season using geomat and shotcrete wereless than 1 (Unstable). However, reinforcement using soil nailing has a SafetyFactor higher than 1.5. Based on these results, soil nailing can be a solution tominimize landslides on the spillway slope.
ANALISIS PERILAKU EROSI PADA DASAR SUNGAI BAGIAN HILIR BANGUNAN GROUNDSILL Fauzi, Mukh ”˜Allaam; Pratikso, Pratikso; Rochim, Abdul
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 29 No. 2 (2024): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v29i2.6163

Abstract

Local scour is the erosion of soil at the riverbed, often occurring due to changes inflow type that become concentrated, influenced by river morphology or the presenceof structures within the river. The hydraulic jump caused by flood discharge at thegroundsill structure of the Gung River leads to local scour downstream of thestructure. Insufficient mitigation of local scour downstream of the groundsill canresult in long-term damage to the structure itself. This study was conducted toanalyze the potential scour depth using empirical methods and modeling with HECRASsoftware. The analysis considers rainfall data over the past five years in theGung River Watershed (DAS) and soil particle diameters obtained from soilinvestigations in 2022. The analysis of scour depth, taking into account a 50-yearrainfall event and followed by flood discharge analysis for a 50-year return period(Q50), yielded a design discharge for analyzing local scour depth using the Laceymethod, with a depth of 7.95 m. Through modeling with HEC-RAS version 6.5, theresulting local scour depth was found to be 8.2 m.
INOVASI MATERIAL GEOSINTETIK (GEOCELL) DAN KIMIA (GEOPOLL) UNTUK OPTIMALISASI PERBAIKAN JALAN HAULING DI PT. MARUWAI COAL Raharjo, Oky Fauzi; Mudiyono, Rachmat; Rochim, Abdul
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 30 No. 1 (2025): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v30i1.6180

Abstract

PT Maruwai Coal faces challenges in increasing hauling production efficiency due to the decline in the quality of hauling roads. In April 2023, dump truck traffic only reached 1.58 cycles/shift, far below the target of 2 cycles/shift, causing a production loss of 26% (91,280 tons). This condition is influenced by the decline in the quality of hauling roads, which is reflected in the Coal Hauling Road Index (CHRI) value which only reached 81.02% in the 17th week of 2023, far below the standard of 90%. Decreased road performance results in increased travel time, maintenance costs, and faster vehicle damage.   This research aims to apply the principles of geosynthetic (geocell) and chemical (geopoll) materials in improving transport roads. In addition, the Road Maintenance application is used to maintain road conditions, provide recommendations for repairs, and ensure proper implementation of SOPs. A case study was carried out on Segment 4 (KM39”“KM52) by measuring changes in CHRI values, average speed and production results. The application of geocell increased the CHRI value from 83% to 91.23% and extended the life of the road by more than 8 weeks. The use of geopoll increases the bearing capacity of the soil, reduces installation and maintenance costs by 21.95%, and increases the average speed from 35.08 km/h to 38.66 km/h. Production increased from 362,419 tonnes/month to 397,337 tonnes/month, resulting in increased profits of $8,243,790 per month. This research shows that geocells, geopolls and digital applications significantly improve cost efficiency, road performance and support production sustainability at PT Maruwai Coal. This study makes a real contribution to the development of infrastructure technology.
Co-Authors ., Adhar A.A. Ketut Agung Cahyawan W Ade saputra ADI FITRA Adi Setiawan Afrianda, Khavids Afriani, Ade AGUSTIN, DWI Akbar, Sandy Al Mukarom, Su'udi Antonius Antonius Antonius Ardi Kurniawan Ari Sentani, Ari Astuti, Meilinda Dwi Aufi, Irwan Bimantoro, Leo Eko Sujarwanto Eliyawati, Rini Fauzi, Mukh ”˜Allaam Hadicara, Danang isna, muhamamd aziz Julian Azhari, Fajar Juni Gultom Karlinasari, Rinda Kartono Wibowo, Kartono Koswara, Dede KURNIAWAN, RENDRA NURRAMADHAN Kusrin Laila, Azzah Nor Lisa Fitriyana, Lisa Maharani, Ifa Agustin Maryadi, Deri Mohammad Fahmi Mohammad Hamsal Muamar Khadafi, Muamar Muhammad Zikril Hakim, Ade Mujahidin, Pratama Rizki Mujiyem Sapti Mulyadi Mulyadi Mulyana, Andri Mustafa, Siti Maisaroh Muti, Ahmad Mutohar, Ahmad Umar Niam, Mohamad Faiqun Nugraheni, Desi Wulan Nugroho, Akmal Fikri Pratikso Pratikso Pratikso Pratikso, H Putra, Sahal Priyono Rachmat Mudiyono, Rachmat Raharjo, Oky Fauzi Raharjo, Slamet Putro Setiawan, Muhamad Febri Slamet Imam Wahyudi, Slamet Imam Soedarsono . Sudarmanti, Sudarmanti Sulistyo, Juny Andry Sumirin Sumirin Sunardi Sunardi Supriyono Supriyono Suyudi, M. Syahril Taufik Tullah, Rahmat Umi Rahayu, Umi Wawan Kurniawan Yogi Oktopianto Yulia, Nur Arini