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Eko Andi Suryo
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Penerapan Teknologi Yang Mendukung Penerapan Prinsip Reuse Dalam Konsep Circular Economy (Studi Kasus: Proyek Pembangunan Gedung East Coast Center 2 Phase 2 Pakuwon City Dan Proyek Pembangunan Gedung Pringgodigdo UNAIR Surabaya) Gabrielle Satriyo Bayu Adinugroho; Kartika Puspa Negara; Eko Andi Suryo
Jurnal Mahasiswa Jurusan Teknik Sipil Vol. 1 No. 2 (2024): Student Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya

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Abstract

Pertumbuhan ekonomi Indonesia yang terus meningkat setiap tahunnya tidak terlepas dari kontribusi sektor konstruksi dalam membangun infrastruktur nasional yang mendukung pertumbuhan ekonomi. Meskipun demikian, peningkatan kinerja sektor konstruksi berpotensi meningkatkan jumlah limbah yang dihasilkan, yang pada gilirannya meningkatkan dampak negatif terhadap lingkungan dan polusi global. Oleh karena itu, diperlukan strategi untuk mengatasi masalah ini, salah satunya melalui pendekatan Circular Economy (CE), yang bertujuan untuk mengoptimalkan penggunaan sumber daya dan mempertahankan lingkungan melalui prinsip-prinsipnya. Penelitian ini fokus pada penerapan teknologi yang mendukung prinsip Reuse dalam proyek konstruksi, dengan menggunakan metode kuantitatif dan data dari kuesioner kepada pekerja proyek. Sampel dari penelitian ini adalah seluruh karyawan perusahaan konstruksi yang bekerja pada Proyek Pembangunan Gedung East Coast Center 2 Phase 2 Pakuwon City dan Proyek Pembangunan Gedung Pringgodigdo UNAIR Surabaya. Tujuan utama penelitian ini adalah mengetahui penggunaan teknologi yang mendukung penerapan prinsip Reuse dalam konsep Circular Economy. Metode analisis data yang digunakan meliputi Mean, CI, dan Indepentent Sample T-Test. Dari penelitian yang telah dilakukan, tidak terdapat perbedaan signifikan dalam teknologi yang diterapkan. Selain itu, didapatkan teknologi yang paling dominan dalam mendukung penerapan prinsip Reuse berdasarkan pengalaman para responden adalah BIM. BIM memungkinkan untuk Merencanakan dan mengelola penggunaan material dengan lebih baik. BIM dapat membantu mengurangi limbah konstruksi yang dihasilkan, yang sesuai dengan prinsip-prinsip pengurangan limbah dalam CE. Kata Kunci: Ekonomi Sirkular, Reuse, konstruksi, implementasi, teknologi.
Analisis Peningkatan Fungsi Vertical Drain pada Kolom Granular Bongkahan Beton dengan Penambahan Geofoam pada Inti Bayu Tri Hardianto; Yulvi Zaika; Eko Andi Suryo
Jurnal Mahasiswa Jurusan Teknik Sipil Vol. 1 No. 2 (2024): Student Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya

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Abstract

Tanah lunak, yang tersebar di beberapa wilayah Indonesia, termasuk Jawa Timur, memiliki potensi menimbulkan keruntuhan geser dan penurunan berlebihan Untuk mengatasi tantangan ini, dilakukan perbaikan tanah menggunakan metode pre-loading dan Prefabricated Vertical Drain (PVD). Selain itu, material pengisi seperti limbah bongkahan sisa konstruksi dan geofoam digunakan untuk memperkuat daya dukung tanah dan mempercepat proses konsolidasi. Metode perbaikan tanah lainnya adalah Stone Column, yang menggunakan kolom batu untuk menggantikan sebagian tanah dasar konstruksi, sehingga meningkatkan kekuatan geser tanah. Tujuan penelitian ini untuk mengetahui pengaruh penambahan bongkahan beton dan geofoam pada inti kolom granular sebagai vertical drain. Penelitian ini dilakukan dengan meguji karakteristik tanah dan material pengisi, serta pengaruh material sebagai vertical drain, lalu dilakukan pengolahan dan analisis data yang diperoleh. Dari penelitian diketahui bahwa tanah yang digunakan bersifat lanau hingga lempung lunak dengan sedikit kandungan organik. Material campuran bongkahan beton dan geofoam dengan perbandingan 70/30 sebagai bahan pengisi vertical drain memiliki nilai permeabilitas 0,2760 cm/detik, serta E50% sebesar 54,93 kg/cm². Hasil penelitian didapatkan vertical drain dengan variasi diameter 4,85 cm memiliki kinerja terbaik dengan penurunan 5,32 cm, nilai permeabilitas rata-rata 0,04 cm/detik, kohesi 0,38 kg/cm², dan sudut geser 4,70º. Untuk variasi jarak, kinerja terbaik dicapai pada jarak 3D dengan penurunan 6,28 cm, nilai permeabilitas rata-rata 0,0105 cm/detik, kohesi 0,23 kg/cm², dan sudut geser 5,87º. Kata kunci: Bongkahan Beton dan Geofoam, Konsolidasi, Vertical Drain
Analisis Stabilitas Lereng yang Diperkuat Dinding Penahan Tanah Beton Porous akibat Beban Kolam Air Limbah di IPLT Kota Batu Mohammad Ichsanul Fikar; Eko Andi Suryo; Yulvi Zaika
Jurnal Mahasiswa Jurusan Teknik Sipil Vol. 1 No. 2 (2024): Student Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya

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Abstract

Tujuan Penelitian ini untuk mengetahui stabilitas lereng dengan dinding penahan tanah di IPLT Kota Batu. Selain itu, untuk mengetahui pengaruh beban kolam air limbah terhadap dinding penahan tanah IPLT Kota Batu pada kondisi kolam normal dan bocor. Serta untuk mengetahui stabilitas dinding penahan tanah IPLT Kota Batu jika digunakan Beton Porous sebagai material utamanya. Metode yang digunakan dalam penelitian ini adalah kuantitatif dengan 2 (dua) varibel yaitu bebas dan terikat dengan analisis menggunakan aplikasi GeoStudio. Hasil penelitian menunjukkan adanya pengaruh kebocoran kolam air limbah terhadap stabilitas lereng yang dapat diketahui dari nilai FS sebesar 1.071 pada kondisi kering dan 0.993 pada kondisi hujan dan kolam bocor, sehingga dibutuhkan adanya perkuatan. Oleh karena itu diaplikasikan perkuatan dinding penahan tanah dengan tinggi 5m dan micropile sebagai struktur penunjang. Dinding penahan tanah tersebut dinilai telah memenuhi stabilitas terhadap gaya guling, gaya geser, dan daya dukung tanah ijin. Adapun dinding penahan tanah diaplikasikan pada beberapa konfigurasi untuk mengetahui struktur perkuatan dengan efisiensi paling tinggi. Beberapa konfigurasi tersebut antara lain; DPT Atas, DPT Atas + Micropile, DPT Bawah, DPT Bawah + Micropile, DPT Atas + Bawah, dan DPT Atas + Bawah Micropile. Dari beberapa konfigurasi tersebut didapati bahwa pengaplikasian DPT pada bagian bawah lereng dan juga penambahan micropile merupakan konfigurasi perkuatan paling efisien dengan nilai FS 1.726 pada kondisi kering, dan 1.704 pada kondisi hujan dan kebocoran kolam.     Kata Kunci : Stabilitas Lereng, IPLT, Dinding Penahan Tanah, Beton Porous,GeoStudio
Distribution service performance optimization of PDAM Tirta Taman Bontang City East Kalimantan Province Wahyu Nugraha, Aviantara; Anwar, M. Ruslin; Suryo, Eko Andi
Civil and Environmental Science Journal (CIVENSE) Vol. 6 No. 1 (2023)
Publisher : Fakultas Teknik Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2023.00601.7

Abstract

To achieve the level of service performance from PDAM Tirta Taman Kota Bontang, obtained based on user perceptions of PDAM Taman Tirta obtained from the results of a questionnaire with a Likert scale using the Importance Performance Analysis (IPA) method. From the IPA analysis results, interviews were conducted using the Strength, Weakness, Opportunities, Threats (SWOT) method. The results of the IPA analysis were used in quadrant I, namely service to the registration process (x11), the survey of prospective customer locations (x12), time of survey implementation (x13), Payment orders before installation (x15), Notice the length of the installation process (X15). Registration up to installation (X16), the supplied water meets health standards, attributes (X21 ), the quality of the supplied water (color, smell, taste) (X22), report to PDAM Tirta Taman if there is a disturbance or it doesn't work smoothly (x 33 ), the duration of handling the damage house connection (x 43 ), customer or prospective customer database of PDAM Tirta Taman (x 71 ). Then the SWOT quadrant matrix with the SO ( Strengths-Opportunities ) strategy, namely development with IT and social media Periodic pipe rejuvenation to avoid pipe leaks that can affect quality, Providing Customer Service via WhatsApp for service notifications, disruptions and payment orders, Issuing SOPs new and regular schedule for maintenance. Continue to perform security updates on the database storage system. Use official forms for prospective customers interested in installing a new connection. Keywords: PDAM Taman Tirta, Validity Test, Reliability Test, Service Performance, Importance Performance Analysis, SWOT
Comparison of Formwork use in Building X Project in Surabaya City Agriansyah, Eza; Suryo, Eko Andi; Arifi, Eva
Civil and Environmental Science Journal (CIVENSE) Vol. 6 No. 2 (2023)
Publisher : Fakultas Teknik Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/civense.v6i2.411

Abstract

The Value Engineering method is a method that analyzes the problems of a project through a systematic and organized approach by eliminating unnecessary costs without reducing the function, appearance, quality, and reliability of the project. The object x building, which has an estimated project value of IDR 42,812,329,371 in structural work. With the estimated value of the work costing a lot, it is, therefore, necessary to make efforts to streamline costs by using the value engineering method; this study aims to choose an alternative material for it. This research method uses a Pareto chart to find the highest work value. The results of this study indicate that the beam work is priced at IDR 15,088,457,899, floor plate work of IDR 12,530,471,281, column work of IDR 10,228,438,679. The results of the analysis of alternative structural calculations using semi-system formwork and full system formwork, which initially used conventional formwork, were simulated using alternative 1, namely semi-system formwork,k and by using alternative two full system formwork. The two alternatives are applied to column, beam and floor plate formwork. So, for this building, it is recommended to replace formwork because the conventional formwork used in this building incurs a large enough price, it is necessary to save on beam parts, and it is recommended to use full system formwork because the cost of beam formwork using full system formwork is IDR 134,950 per square meter. For the floor plate formwork, it is recommended to use a full floor plate formwork system because the cost per square meter is IDR 202,360. And for columns, it is recommended to use full system formwork because the cost of column formwork if using full system formwork is IDR 115,290. And from the use of all the full-system formwork for structural work, a total cost of IDR 40,312,992,291.32.
Settlement of Dam During and End of Construction using Numerical Analysis Kurniawati, Tri; Suryo, Eko Andi; Zaika, Yulvi
Rekayasa Sipil Vol. 18 No. 3 (2024): Rekayasa Sipil Vol. 18 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2024.018.03.4

Abstract

The construction process of the Tilong Dam induced significant settlement in the surrounding areas. This study aimed to enhance our understanding of the factors that influenced settlement behavior and improve the reliability of predictive models by using instrumentation data regarding the dam's vertical displacement. Numerical modeling was conducted to consider the actual embankment conditions and analyze the changes in the immediate settlement during and after construction. After the Tilong Dam construction, the measurements and numerical analysis showed settlements ranging from 0 to 832 mm. It was noted that settlements were expected during and after the construction, particularly at the dam's mid-sections. The back analysis method was employed to establish the values for material properties, specifically Young's modulus and Poisson's ratio, which affected the displacement. A multivariate regression comparison between the observed and predicted data yielded a determination coefficient (R²) of 0.914. This indicated a strong correlation between the observed and predicted values.
Optimization of the Number and Type Composition of Houses in Housing Development Using the Simplex Method (Case Study: Pesona Arjuna Residence, Malang Regency) Abdullah, Ali; Suharyanto, Agus; Suryo, Eko Andi
Rekayasa Sipil Vol. 19 No. 1 (2025): Rekayasa Sipil Vol. 19 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2025.019.01.7

Abstract

The rising population in Indonesia has led to an increasing demand for housing, presenting opportunities and challenges for property developers. Although luxury homes yield higher profits, most consumers favor affordable housing. This study aims to optimize the quantity and type composition of homes in Pesona Arjuna Residence, Malang Regency, using the Simplex Method to maximize profits. Developers need to balance market demand and government regulations, which require including affordable and middle-income homes alongside luxury units. The Simplex Method is applied in this study to determine the ideal composition of housing units by factoring in key constraints such as available land, production costs, and market demand. The findings reveal that houses in buildings 12 type A, 18 type B, and 23 type C yield the highest profitability. The Net Present Value (NPV) of Rp 610,940,579.76 at a 10% discount rate confirms the project’s financial success, while the Internal Rate of Return (IRR) of 13.49% indicates a solid annual return on investment. A Benefit-Cost Ratio (BCR) of 1.617 further supports the project’s financial viability, though careful consideration of market fluctuations and risks is advised. This research contributes to sustainable urban planning by offering a flexible approach to housing development, enabling developers to better adapt to market trends and optimize profits while addressing community housing needs.
Analisis Simulasi Numerik Pengaruh Kedalaman Curtain Grouting terhadap Pola Flow Nets dan Faktor Keamanan Bendungan Zonal pada Kondisi Steady-State dan Transient Seepage Isadur Rofiq; Eko Andi Suryo; Arief Rachmansyah
Jurnal Mahasiswa Jurusan Teknik Sipil Vol. 1 No. 2 (2025): Student Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya

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Abstract

Bendungan zonal merupakan struktur urugan tanah yang umum digunakan dengan inti kedap air yang dilindungi oleh zona filter dan shell. Salah satu potensi kegagalan terbesar berasal dari rembesan air yang tidak terkendali, yang menyumbang sekitar 30% dari total kegagalan bendungan. Curtain grouting adalah metode pengendalian rembesan melalui injeksi grout ke dalam rekahan batuan untuk mengurangi permeabilitas. Penelitian ini bertujuan menganalisis pengaruh kedalaman curtain grouting terhadap pola flow net dan faktor keamanan bendungan zonal pada kondisi rembesan steady-state dan transient. Simulasi numerik dilakukan menggunakan GeoStudio SEEP/W dan SLOPE/W dengan variasi kedalaman grouting 0 m, 20 m, 30 m, 40 m, 50 m, dan 60 m. Kondisi steady-state dimodelkan pada elevasi muka air hulu +280 m, sedangkan kondisi transien meliputi rapid drawdown dari +280 m ke +262,9 m dan impounding dari dasar sungai ke +280 m dan elevasi hilir tetap +222 m. Hasil menunjukkan bahwa grouting memperpanjang jalur rembesan, menurunkan gradien hidraulik, dan memindahkan garis freatik menjauh dari permukaan hilir. Debit rembesan turun hingga 81,66% pada steady-state dan >84% pada impounding. Faktor keamanan tanpa grouting tidak memenuhi standar (FK < 1,5), dan dibutuhkan grouting minimal 30 m untuk mencapai kestabilan. Faktor keamanan terhadap piping sebesar 10,692 dan kecepatan rembesan jauh di bawah batas kritis. Perbandingan hasil simulasi numerik dengan perhitungan manual menunjukkan deviasi yang tidak jauh berbeda. Kata Kunci: bendungan zonal, flow nets, faktor keamanan, steady-state, transient seepage
Subsurface Mapping and Geotechnical Design for Landslide Mitigation Hasan, Muhammad Fathur Rouf; Susilo, Adi; Sutan Haji, Alexander T.; Suryo, Eko Andi; Agung, P. A. Maha; Idmi, Mohammad Habibiy; Musta, Baba
Civil Engineering Journal Vol. 11 No. 9 (2025): September
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-09-015

Abstract

The landslide near the PT Molindo Incinerator Unit poses a significant threat to the facility’s structural integrity. Without immediate mitigation measures, the incinerator building is at risk of collapse, potentially impacting adjacent settlements due to cascading structural failures. To reduce the risk of further instability, urgent geophysical investigation is required to characterize the subsurface lithology and assess the groundwater table conditions. A geoelectrical resistivity survey was conducted using the Schlumberger configuration across 8 measurement points along a 100-meter survey line, with 10-meter electrode spacing. The resistivity measurements ranged from 3.30 to 25 Ωm, which were interpreted as clay-rich layers; 26 to 167 Ωm, corresponding to sandy clay; and 167 to 15,944 Ωm, indicating bedrock. The potential slip zone is interpreted at an average depth of 20 to 25 meters, indicated by very low resistivity values with resistivity values between 3.30 and 25 Ωm. Field observations confirmed that the landslide materials predominantly consisted of clay soils, distributed within two distinct layers beneath the incinerator unit. The combined depth of the clay and overlying sandy layers was estimated to reach approximately 20-25 meters from the ground surface. To ensure the effectiveness of structural mitigation, a retaining wall must be designed to extend beyond this depth threshold. Numerical simulations using Slope/W software indicated that soil nailing techniques yielded safety factors ranging from 1.32 to 1.81 under static conditions and 1.22 to 1.43 under dynamic conditions. Predicted deformations ranged from 0.01 to 0.02 meters (static) and 0.02 to 0.03 meters (dynamic). These results suggest that soil nailing is a viable reinforcement method to stabilize slope movements, particularly during periods of high rainfall. Additional recommended mitigation strategies include the installation of surface and subsurface drainage systems to control water flow, constructing retaining structures to serve as physical barriers to soil movement, and using vegetative cover to enhance slope stability.
Co-Authors ., Imanuddin ., Lestari Adi Susilo Agriansyah, Eza Agung, P. A. Maha Agus Suharyanto Akbar, Muhammad Al Islami, Auliya Nusyura Ali Abdullah, Ali Alif, Faisal Abda Allo, Angeline Grace Alwafi Pujiraharjo Aqim, Angga Qinwanul Arief Rachmansyah Arief Rachmansyah Arthayoga Bendesa, Dimas Januar Arviananda, Ovy Ellen Bayu Tri Hardianto Berliana Ganesha Restuputri Christon, Hosea Adyo Cintya, Febrina Sagita Dieng Permana, Mochamad Amin Dwi Krisna, Septiyan Candra Dwi Edhi Wahyuni Setyowati Ella Candrawati Eva Arifi F, T Fadh, Ghulam Aghnia Fakhrozy, Rizky Faradillah Sheni Putri Amalia Farandy, Fairuz Ikbar Fauzi Rizky, Adi Widia Nur Firdaus, Adelina Maulidya Firdaus, Reza Novianda Gabrielle Satriyo Bayu Adinugroho H, Fadel Fadel Muhammad Hadiatma, Agvin Hanif Akbar Rabbany Harimurti Harimurti . Harimurti Harimurti Hasyim Alhadar Ibnu Tsauri Pradana Idmi, Mohammad Habibiy Indradi Wijatmiko Isadur Rofiq Iswara Elsam, Kevin Raditya Karimah, Maslin Akhlaqul KARTIKA PUSPA NEGARA Kartika Puspa Negara Kusumawati, Nafisah Octa Laras, Ario Widio M. Hamzah Hasyim M. Hamzah Hasyim M. Ruslin Anwar Ma’azza, Muhammad Ainun Maharani, Kharisma Tria Mahendra, Anfasa Tifani Minata, Afria Nurizky Mohammad Ichsanul Fikar Muhammad Akbar Tafzila Janika Muhammad Fathur Rouf Hasan Muhammad Hamzah Hasyim Mulyadi, Faqih Syahputra Munawir, As'ad Munawir, As’ad Musta, Baba Natalia, Karisa Ratih Nindia Rizky Ismawan Nugroho, Cendana Putri Nur Arifin, Hadi Mizan Nur Fadli, Aji Gigih Pramesthi, Shifa Ardhelia Pramudiyanto, Andi Pratama Yohanes, Raphael Eldy Pratama, Dicky Rosian Prihatama, Wirawan Yuda Purwowaskito, Danu Putra, Muhamad Darmawan Putranto, Arif Rahman Rizkishoiful Kodri Rohmatillah, Siti Saidah, Heni Dewi Saifoe El Unas Shafira, Nisa Shofy Azizah Sirait, Solapida Glenesya Solikah, Vika Badius Stanislasia Pratiwi Bayu Ningtyas Andreani Suhartono, Gerrie Sulistyo, Herlambang Bagus Suroso . Suryono, Devi Sutan Haji, Alexander T. Tejokusumo, Radius Suryajaya Thiya Fianti Tiantara, Salma Fidela Tri Kurniawati, Tri Wahyu Nugraha, Aviantara Wibisono, Gunawan Widagdo, Yanuar Eko Wijaya, Theo Mahendra Yulvi Zaika Yulvi Zaika Zain, M. Nuhkhalid Zubaedah, Endah