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Optimalisasi Stabilitas Lereng pada Daerah Sempadan Sungai Santer Kecamatan Gumukmas Kabupaten Jember Moch. Wahyudi Riskyanto; Paksitya Purnama Putra; Luthfi Amri Wicaksono
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 11 No 1 (2023): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Januari 2023)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v11i1.4531

Abstract

The Santer Riverbank which is located in Panggul Melati Hamlet, Kepanjen Village, Gumukmas District, Jember Regency, East Java is still used by the community for agricultural land. This research was conducted to create safe agricultural land for the community. Landslides on this riverbank often occur because it is located on the edge of the river and has a steep slope. In the observation in 2022, there is a collapsed riverbank approximately 20 meters in front of the river embankment. To prevent a longer landslide area, the slopes on the river border are optimized so that residents can still use the land safely. The selected reinforcement is made based on the geometric conditions and the results of the SF value from modeling the existing conditions using the Geostudio program. Appropriate reinforcement based on geometric conditions and SF values ​​is a balancing method. close to the counterweight method, the geometric conditions are more optimal with the SF value increasing from 1.099 to 1.623
Evaluasi Kegagalan Dinding Penahan Tanah Pada Lereng Jalan Raya Rembangan Kabupaten Jember Ayu Dwi Lestari; Paksitya Purnama Putra; Indra Nurtjahjaningtyas
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 10 No 2 (2022): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Juli 2022)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v10i2.4414

Abstract

A reinforced concrete type retaining wall was built in 2017 to strengthen the slope stability of Rembangan highway, Jember Regency, Indonesia. However, in 2018 the building was damage. Until now, the cause of the failure of the retaining wall is still unknown. This study aims to evaluate the causes of the failure of retaining walls and the stability of retaining walls on the slopes of the Rembangan highway, Jember Regency. The research methodology begins with primary and secondary data collection before processing the data using conventional methods and auxiliary software. After data processing, data analysis was carried out to find conclusions about the cause of the failure of the retaining wall. Result analysis showed that the retaining walls have a low level of safety factor for rolling stability, shear stability, and bearing capacity stability. In addition, the factor of safety for the bearing capacity of the group pile foundation as a reinforcement of retaining walls also shows a smaller value than that charged. In addition, the group pile foundation can suffer a total settlement of 1.28 m.
Evaluasi Stabilitas Contiguous Bored Pile (CBP) Pada Proyek High-Rise Building dan Rancangan Perkuatannya Aiman Syarifuddin Zaein; Paksitya Purnama Putra; Dwi Nurnanto
Jurnal Teknik Sipil Unaya Vol 9, No 1 (2023): Januari 2023
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v9i1.3104

Abstract

Salah satu pembangunan gedung tingkat tinggi di surabaya membutuhkan banyak tempat parkir yang akan disediakan pada basement. sehingga dilakukan proses penggalian tanah dan memerlukan suatu struktur penahan tanah. Pada proyek tersebut menggunakan dinding penahan tanah tipe contiguous bored pile. Namun hal tersebut masih mengakibatkan area dipinggir bangunan mengalami keretakan dan tentu dapat membahayakan orang atau pekerja yang ada di bawah.  Oleh karena itu, perencanaan dinding penahan tanah dengan penambahan perkuatan sangatlah perlu untuk diperhatikan. Perkuatan yang cocok yaitu menggunakan ground anchor karena dapat menahan beban lateral dari dinding penahan tanah. Penelitian ini bertujuan untuk menghitung stabilitas dinding penahan tanah pada proyek tersebut. Perhitungan stabilitas dinding penahan tanah dilakukan dengan bantuan program Plaxis V8.2. Berdasarkan analisis existing didapatkan nilai faktor kemanan (SF) sebesar 1,24 dan tidak aman terhadap geser (SF >1,5), oleh karena itu diperlukan perkuatan ground anchor agar dinding penahan tanah tidak mengalami pergeseran dan guling. Berdasarkan analisis setelah diberi perkuatan ground anchor didapatkan hasil safety faktor tiap kondisi dimana kondisi 1 dengan SF sebesar 4,73, kondisi 2 SF sebesar 4,28, kondisi 3 SF sebesar 3,94 dan kondisi 4 SF sebesar 3,65.
ANALISA PERBAIKAN TANAH DASAR PROYEK PEMBANGUNAN TERMINAL MAINTENANCE FACILITY, TELUK LAMONG, GRESIK Paksitya Purnama Putra; Indra Nurtjahjaningtyas; Devi Naning
Jurnal Ilmiah MITSU (Media Informasi Teknik Sipil Universitas Wiraraja) Vol 11 No 1 (2023): Jurnal Ilmiah MITSU
Publisher : Fakultas Teknik, Universitas Wiraraja

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24929/ft.v11i1.2079

Abstract

Soft soil problems in the Truck Maintenance Facility construction project became a major obstacle in the development process of the project. Soft soil has characteristics with low bearing capacity and compression that lasts a long time and large. One method chosen for the soft soil problem is to combine preloading with Prevebricated Vertical Drain to accelerate the consolidation process to match the age of geotechnical work on the project. Based on the results of soil investigation, improvement of soft soil can be divided into three areas (A, B, C) based on the characteristics and depth of the soft soil. The preloading height varies in each area. Area B requires the highest preloading height of 8.11 meters. The reason is that area B has a large thickness of soft soil. Only preloading in Area B requires special handling in the form of 6 layers of geotextile reinforcement on the embankment. PVD is used in all construction areas. The effective distance for installing the PVD found based on the results of the analysis on the two installation patterns, namely triangles and quadrilaterals, is the same as 2 meters. Therefore, even though the triangular pattern has a faster consolidation time, the rectangular pattern is better to apply because it has effectiveness in field installation.
ANALISIS RISIKO TEKNIS PELAKSANAAN PEKERJAAN PENGGANTIAN ELASTOMER BEARING PAD PADA JEMBATAN SURAMADU MENGGUNAKAN FAULT TREE ANALYSIS METHOD Irishwanda Sari; Paksitya Purnama Putra; Anik Ratnaningsih
Jurnal Ilmiah MITSU (Media Informasi Teknik Sipil Universitas Wiraraja) Vol 11 No 1 (2023): Jurnal Ilmiah MITSU
Publisher : Fakultas Teknik, Universitas Wiraraja

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24929/ft.v11i1.2110

Abstract

Penggantian elastomer bearing pad menjadi salah satu pekerjaan dengan risiko tinggi.. Pada pekerjaan ini dibutuhkan keahlian dalam proses pelaksanaannya agar tidak terjadi kerusakan struktur. Risiko yang terjadi dapat menghambat pekerjaan dan mempengaruhi kinerja jembatan. Oleh karena itu, manajemen risiko diperlukan untuk menemukan dan mengidentifikasi sumber risiko yang kemudian diukur tingkat risikonya, sehingga dapat diupayakan pengendalian sampai pada tingkat aman. Penelitian ini menggunakan Fault Tree Analysis Method (FTA). Keunggulan metode Fault Tree Analysis (FTA) yaitu sebagai metode kualitatif yang mempunyai kemampuan mengidentifikasi rangkaian kejadian penyebab terjadinya risiko. Setelah dilakukan analisis risiko, didapatkan 7 variabel dengan tingkat risiko tinggi. Dari hasil perhitungan FTA didapatkan nilai kegagalan sebesar 0.8059. Faktor-faktor penyebab terjadinya risiko yang didapatkan meliputi, Human Error, Komunikasi antar pekerja serta perencana dengan owner yang kurang, kondisi alat yang buruk, pemeliharaan alat kurang baik, kondisi ruang lingkup pekerjaan yang kurang layak, ketersediaan alat yang terbatas, dan juga faktor alam. Pengendalian risiko yang dapat dilakukan pada pelaksanaan pekerjaan penggantian elastomer bearing pad yaitu, menyiapkan koordinasi yang baik pada saat pelaksanaan, melakukan maintenance alat sebelum digunakan, dan melaksanakan pekerjaan sesuai dengan SOP yang ada.
Evaluasi Penurunan Oprit Pada Salah Satu Proyek Jembatan di Kalimantan Tengah Achmad Fajar Shodiq; Paksitya Purnama Putra; Luthfi Amri Wicaksono
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 11 No 2 (2023): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Juli 2023)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v11i2.5867

Abstract

One of the bridge construction projects in Kalimantan was built on soft soil using a piled embankment reinforcement system. The reinforcement used is a combination of minipile and geotextile poles. However, after the landfill was carried out on the bridge embankment, a settlement is occured of approximately 0.6 m in a period of 3 months. Studies are conducted to evaluate and review the causes of decline. In addition, optimization of the design was carried out in this study. Evaluation is carried out by reviewing the bearing capacity of single and group piles of the minipile based on Standart Penetration Tests data. The calculation of load distribution on piled embankments follows the regulation of BS 8006. Deformation analysis is performed with Plaxis 2D program. Based on the analysis results, it was found that the ultimate bearing capacity of the pile group under the embankment was not able to withstand the working load. The settlement that occurred in the bridge's oprit was most likely caused by the collapse of the soil. Based on the consolidation analysis using plaxis, a value of 0.6 m was obtained within 90 days. Based on the evaluation results, the optimization of the design was carried out using the same method, namely using a pile embankment but differed in the dimensions and installation configuration. The design optimization results show that the bearing capacity is sufficient and the resulting average total deformation is 0.0435 m.
ANALISIS STABILITAS SOIL NAILING SEBAGAI ALTERNATIF PENANGANAN LONGSOR DI JALUR NASIONAL PIKET NOL LUMAJANG JAWA TIMUR Muhammad Fahmi Ibrahim; Paksitya Purnama Putra; Indra Nurtjahjaningtyas
Jurnal Jalan-Jembatan Vol 38 No 1 (2021)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Piket Nol national route is an alternative route across the southern island of Java that connects the Lumajang Regency with the Malang Regency. Landslide-prone areas are starting from KM Turen 53 to KM Turen 59 on this route. The Simplified Bishop method is used in analyzing slope stability and modeling soil nailing reinforcement with numerical modeling. Slope and soil nailing stability control are applied following SNI 8460 2017. The average value of the safety factor for the natural slope's stability at the top of the road is 0.269 or less than 1.07 (unstable). Whereas the stability of the lower slope of the road in most locations shows a stable condition (SF>1.25), except for KM 57+100, KM 58+100, and KM 58+900 with an average SF value of 1,183 (critical). The average value of the safety factor for the top slope stability after reinforcement using soil nailing is 1,728, whereas for the lower slope stability is 1,853. Soil nailing is designed as slope improvement at KM 57+900, other than that in anticipation of the potential for landslides at KM 56+900-KM 57+700 and KM 58+100-KM 59+100. The results of all stability control of slope reinforcement using soil nailing have met the SNI 8460 2017 criteria. Therefore, soil nailing can be an alternative solution in dealing or anticipating with landslides on The Piket Nol national route. Key words: landslide, slope stability, safety factor, soil nailing, soil nailing stability.
Analisa Pengaruh Normalisasi Sungai Kemuning Terhadap Stabilitas Tanggul Corrugated Concrete Sheet Pile (CCSP) pada Kondisi Beban Normal dan Beban Gempa: Analysis of the Effect of Kemuning River Normalization on the Stability of the Corrugated Concrete Sheet Pile (CCSP) Embankment Putra, Paksitya Purnama; Ganesha, Khalid Pijar; Wicaksono, Luthfi Amri; Lestari, Rini Trisno
Jurnal Rekayasa Sipil dan Lingkungan Vol. 8 No. 1 (2024): Jurnal Rekayasa Sipil dan Lingkungan
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jrsl.v8i1.45926

Abstract

Abstract The flood that occurred in the Sampang area was caused by the low capacity of the Kemuning River. One of the possible methods to solve flood overflow is to increase the capacity using normalization by dredging sediments in the river channel. To carry out normalization, it is necessary to consider the impact on the stability of the existing CCSP (Corrugated Concrete Sheet Pile) embankment. This study is intended to analyze the impact of normalization on the stability of the CCSP embankment, which is 500 m long, using the finite element method (FEM) program. This study consisted of several stages, namely soil data analysis, lateral pile analysis, and safety factor analysis. Based on the calculation results, all stationing segments are safe for normalization because they have a faktor keamanan (SF) value above the SF limit required by SNI 8460:2017, that is, SF = 1.5 under normal conditions and SF = 1.1 under earthquake conditions. Likewise, when normalization is carried out at the depth limit of the river bed elevation, the CCSP embankment still meets the stability requirements, with an average SF value in earthquake conditions of SF = 1.27 and SF = 2.46 in non-earthquake conditions. The stability of the CCSP reaches its limit when the average dredging depth elevation is between 4.71 m and 5.92 m below the river's normal water level in earthquake and non-earthquake conditions. Keywords: Normalization, Stability, CCSP, Kemuning River, FEM. Abstrak Banjir yang terjadi di daerah Sampang disebabkan oleh debit banjir yang melebihi kapasitas tampung Sungai Kemuning. Salah satu upaya untuk mengatasi terjadinya luapan banjir adalah dengan meningkatkan kapasitas tampung melalui normalisasi dengan cara mengeruk sedimen pada alur sungai. Pelaksanaan normalisasi perlu mempertimbangkan dampak terhadap stabilitas tanggul CCSP (Corrugated Concrete Sheet Pile) eksisting yang sudah ada. Penelitian ini dimaksudkan untuk menganalisis pengaruh normalisasi terhadap stabilitas tanggul CCSP sepanjang 500 m menggunakan program bantu berbasis elemen hingga (FEM). Penelitian terdiri dari beberapa tahap yakni analisis data tanah, analisis tiang lateral, dan analisis faktor keamanan. Berdasarkan hasil perhitungan, seluruh segmen stasioning aman untuk dilakukan normalisasi karena memiliki nilai faktor keamanan (SF) diatas SF limit yang disyaratkan SNI 8460:2017 yaitu (SF=1,5) pada kondisi normal dan (SF=1,1) pada kondisi gempa. Saat normalisasi dilakukan pada batas kedalaman elevasi dasar sungai, tanggul CCSP masih memenuhi syarat stabilitas dengan nilai SF rata-rata pada kondisi gempa sebesar SF=1,27 dan SF=2,46 pada kondisi normal. Stabilitas CCSP mencapai batasnya saat elevasi pengerukan rata-rata sedalam 4,71 m dan 5,92 m dibawah muka air normal sungai pada kondisi gempa dan tanpa gempa. Kata kunci: Normalisasi, Stabilitas, CCSP, Sungai Kemuning, FEM.
Korelasi Modulus Elastisitas Light Weight Deflectometer dan California Bearing Ratio Nurtjahjaningtyas, Indra; Putra, Paksitya Purnama; Rasta Darmawan, Raffio
Berkala Forum Studi Transportasi antar Perguruan Tinggi Vol. 2 No. 3 (2024): Berkala Forum Studi Transportasi antar Perguruan Tinggi
Publisher : Prodi Teknik Sipil, Fakultas Teknik, Universitas Jember dan Forum Studi Transportasi antar Perguruan Tinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/berkalafstpt.v2i3.1285

Abstract

Road pavement construction requires standard planning and evaluation of the foundation layer's structural strength. The commonly used standard is the California Bearing Ratio (CBR). In situ, road layer CBR value evaluation mainly uses a Dynamic Cone Penetrometer (DCP), Sand Cone, or direct CBR. Using these tools requires a lot of equipment, time, and human resources; therefore, more efficient and practical in situ tests such as Light Weight Deflectometer (LWD) are needed. This research was conducted to find any correlation between the results of the LWD test and the results of Field CBR and DCP testing on pavement road's base course. Data collection was carried out at River Side and Rich Village residential areas. From this research, it can be concluded that there is a significant correlation between the LWD modulus value and the 600 mm CBR DCP and the max CBR DCP conversion modulus, with an average coefficient of correlation 0.96 and 0.958. ABSTRAK Pekerjaan konstruksi perkerasan jalan raya membutuhkan standar dalam perencanaan dan evaluasi kekuatan struktural lapisan pondasinya. Standar yang digunakan yakni nilai California Bearing Ratio (CBR). Evaluasi nilai CBR di lapangan sebagian besar dilakukan menggunakan alat Dynamic Cone Penetrometer (DCP), Sand Cone, atau CBR langsung. Penggunaan beberapa alat ini membutuhkan peralatan, waktu, dan sumber daya manusia yang tidak sedikit, oleh karena itu diperlukan pengukuran lapangan yang lebih efisien dan praktis seperti Light Weight Deflectometer (LWD). Penelitian ini dilakukan untuk melihat bagaimana korelasi hasil pengujian alat LWD pada base course perkerasan jalan dengan pengujian CBR Lapangan dan DCP. Pengambilan data dilakukan di dua tempat yaitu perumahan River Side Bondowoso dan perumahan Rich Village Jember menggunakan ketiga alat. Hasil penelitian menunjukkan bahwa Terdapat korelasi sangat kuat antara nilai modulus LWD uji dengan modulus konversi CBR DCP max dan CBR DCP kedalaman 600 mm. Dengan rerata nilai korelasi berurut 0.958 dan 0.96.
ANALISIS STABILITAS LERENG DENGAN GEOGRID DAN BRONJONG Dimas Dedy Pratama1; Rini Trisno Lestari; Paksitya Purnama Putra
Jurnal ARTESIS Vol 3 No 2 (2023): JURNAL ARTESIS
Publisher : Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/artesis.v3i2.5930

Abstract

Lokasi penelitian ini berada Purwakarta dimana lokasi konstruksi peternakan ini berada tepat di tepi lereng tebing. Kondisi stabilitas lereng pada lokasi penelitian ini tidak stabil, hal ini dikarenakan pada saat masa konstruksi tanah dan bangunan tersebut amblas dan terjadi kelongsoran. Berdasarkan hal tersebut perlu dilakukan perkuatan lereng untuk meningkatkan daya dukungnya. Analisis yang pertama dilakukan yaitu dengan mengecek apakah lereng tersebut aman atau tidak dengan menggunakan software berbasis Limit Equilibrium Method (LEM) dimana dihasilkan nilai Safety Factor (SF) sebesar 1,06 yaitu kurang dari 1,5 dari SF rencana. Berdasarkan analisis tersebut diperlukan alternatif metode perkuatan lereng, metode perkuatan lereng yang digunakan pada penelitian ini yaitu dengan alternatif pertama dengan menggunakan material geogrid, alternatif kedua dengan material bronjong dan alternatif ketiga yaitu kombinasi keduanya. Alternatif pertama yaitu perencanaan geogrid dilakukan dengan menghitung kebutuhan yang akan dipasang dimana dihasilkan Tipe geogrid Biaxial Geogrid 200/50 F dengan nilai Ultimate Tensile Strength (MD/CM) sebesar 200/50 kN/m dengan jarak pemasangan 0,5 meter dengan nilai MR komulatif sebesar 2,512.820513 kN/m sebanyak empat lapisan dengan total panjang geogrid yang dibutuhkan sebesar 10,8791 m. Alternatif kedua yaitu dengan material bronjong yang dianalisis dengan software dihasilkan nilai safety factor sebesar 0,20 sehingga kurang aman. Alternatif yang ketiga yaitu dengan menggunakan kombinasi kedua nya dimodelkan dengan software dihasilkan deformasi sebesar 0,07127 meter. Pemilihan analisis perhitungan dari ketiga alternatif tersebut dihasilkan alternatif yang ketiga yaitu dengan kombinasi kedua material geogrid dan bronjong.
Co-Authors Achmad Fajar Shodiq Ahmad Riyasyul Huda Aiman Syarifuddin Zaein Akhmad Hasanuddin Alfin Kristyanto Anik Ratnaningsih Anita Trisiana, Anita Arti, Farikha Mualida Nafi Asa Dina Safitri Ayu Dwi Lestari Bagus Firman Mahardika Bagus Rahmat Hidayat Celia Nindy Carisa Celia Nindy Carisa Damayanti, Elok Devi Naning Dimas Dedy Pratama1 Dwi Nurnanto Dwi Nurtanto Eka Patriyandi Oktavian Endah Nurhidayah Fahir Hassan Fatmawati, Risma Eka Firman Firman Ganesha, Khalid Pijar Hadi Hamid Abdullah Haeruddin Haeruddin Hendriantono, Satriawan Hernu Suyoso Holis Nurshinta Ibrahim, Muhammad Fahmi Indra Nurtjahjaningtyas Intan Nuraini Irishwanda Sari Jojok Widodo Soetjipto Krisnamurti Kusuma, Dian Natalia Lestari, Rini Trisno Luqman Hakim Luthfi Amri Wicaksono Ma'ruf, Mokhamad Farid Maliq, Tatang Maulana Moch. Wahyudi Riskyanto Mokhammad Farid Ma'ruf Mokhammad Farid Ma'ruf Muhammad Ari Ridwansyah Muhammad Fahmi Ibrahim Muhammad Rifki Darmawan Prasetyo, Slamet Rohadi Budi Pratomi, Ghaizka Reyhan Rasta Darmawan, Raffio Rendra Kurniawan Restu Farina Rohmawati Retno Utami A Wiyono Ridwansyah, Muhammad Ari Rikarda, Raden Denisio Edwin Rina Zusianti Rindang Alfiah Rini Trisno Lestari Risky Andika Purnama Rizal Mutowaf Al Fatah Rohmawati, Restu Farina Saifuridzal Saifuridzal Saifurridzal, Saifurridzal Sela Marselina Septiandri, Rohmahillah Aviskanasya Sholeh Huda Taufiqurohman Subagio, Hari Tasya Afkarina Utama, Farrel Indryasmara Viola, Balqis Okta Widianto, Rio Wiwik Yunarni Widiarti Wulandari, Diah Ayu Restuti Yuliana Sukarmawati Zahra Hikmah Hayati