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All Journal Media Komunikasi Dunia Ilmu Sipil (MoDuluS) Jurnal Abdi Masyarakat Saburai (JAMS) Jurnal Teknik Sipil Giratory Upgris Jurnal Civil Engineering Study Journal of Research and Technology Studies
Ahmad Hidayawan, Ahmad
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Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Transportation

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ANALISIS STABILITAS TIMBUNAN DENGAN PLAXIS MEMBANDINGKAN 2 METODE AKIBAT KETERBATASAN LAHAN Adhi, Bagas Wahyu; Setiyanto, Beni; Hidayawan, Ahmad; Rizani, Mohammad Debby
Jurnal Teknik Sipil Giratory UPGRIS Vol 4, No 1: Juni 2023
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v4i1.16187

Abstract

In the Cibitung - Cilincing Ramp 3-1 Toll Road development project, where the road alignment is an embankment construction with subgrade conditions that have dominant soil layers with sand and limited land. Then the implementation of subgrade improvement is carried out by comparing 2 methods, namely the first Replace 1.5 m (50 cm Limestone + Geomembrane + 50 cm Granular backfill + Geotextile Non Woven) + Sheet Pile with a length of 15 meters + Retaining Wall and the second Replace 1.5 m (50 cm Limestone + Geomembrane + 50 cm Granular backfill + Geotextile Non Woven) + Retaining Wall with Bore Pile D60 Int. 2 meters + Retaining Wall.The analysis of the two treatments used Plaxis with the results for the 1 year and 10 year consolidation of the two treatments meeting the requirements. The safety factor for the embankment slopes also meets the requirements. The results of the Horizontal Displacement in the first treatment are still very large, namely 6.73 cm, not in accordance with the AASTHO criteria of 3.8 cm and it can be seen from the profile bending moment on the Sheet Pile that the Sheet Pile is not pinched so that for this case the handling suitable is to use the second treatment, namely Replace 1.5 m (50 cm Limestone + Geomembrane + 50 cm Granular backfill + Geotextile Non Woven) + Retaining Wall with Bore Pile D60 Int. 2 meters + Retaining Walls 
Memahami Konsep Pengajuan Lelang Untuk Jasa Konsultan Konstruksi Pada Proses Pengadaan Barang/Jasa Meylida, Dhonna; Hidayawan, Ahmad; Setiyanto, Beni
Media Komunikasi Dunia Ilmu Sipil (MoDuluS) Vol. 7 No. 1 (2025): Juni 2025
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/modulus.v7i1.6700

Abstract

In the construction sector, the tender process in the procurement of goods and services is carried out to select and appoint companies that will perform the required work. Companies that feel capable may participate in tender offers, and the selected company will carry out the work in accordance with the agreed contract. The procurement of goods and services, also known as tendering, is a government procedure aimed at awarding projects to entrepreneurs. Government procurement is conducted through an e-procurement or electronic tender process, in accordance with Presidential Regulation No. 04 of 2015. This process is intended to minimize direct meetings between the organizing committee and service providers, thereby promoting fair competition. The electronic tender process includes steps such as the announcement of the tender, downloading of selection and qualification documents, clarification of tender documents, submission of bid documents (price, administrative, and technical), submission of qualification documents, evaluation of bids, evaluation of qualification documents and verification of qualifications, delivery of the minutes of tender results, determination of the winner, announcement of the winner, objection period for the tender result, and signing of the contract. This paper uses a literature review method by analyzing several articles, journals, books, and official circulars relevant to the author's objective, which is to understand the procurement process for goods and services in construction consultancy. From the results of the literature review, it is found that there are many steps required to achieve optimal outcomes in the tender process for goods and service providers. Due to various regulatory changes, it is important for providers to study applicable rules, such as the latest Presidential Regulation No. 1 of 2025 regarding budget efficiency in construction. Providers are thus required to prepare pricing that matches the project specifications being tendered, while also staying within existing efficiency limits. This paper is expected to assist small or newly established companies in participating in fair and healthy competition. It is important to consider the company’s capacity to participate in tenders, as well as compliance with current regulations, including proper calculation of the Domestic Component Level (TKDN).
Analisis Metode Perbaikan Pondasi Bendungan Di Tinjau Dari Segi Biaya Dan Waktu (Studi Kasus Bendungan Jragung Kabupaten Semarang) Siswadi, Siswadi; Donny Cahyono, Muhammad Shofwan; Ray, Norman; Hidayawan, Ahmad
Jurnal Civil Engineering Study Vol. 5 No. 02 (2025): Jurnal Civil Engineering Study
Publisher : Civil Engineering of Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/ces.v5i02.1518

Abstract

Pondasi merupakan elemen krusial dalam struktur bendungan karena berperan langsung terhadap stabilitas dan keamanan jangka panjang bendungan. Penelitian ini bertujuan untuk menganalisis metode perbaikan pondasi bendungan dari segi efisiensi biaya dan waktu pelaksanaan, dengan studi kasus pada proyek Bendungan Jragung di Kabupaten Semarang. Berdasarkan hasil investigasi geologi, ditemukan bahwa pondasi terdiri dari lapisan kolluvial dengan daya dukung yang rendah dan potensi deformasi tinggi. Dua metode perbaikan dianalisis, yaitu penggantian tanah dengan material batuan berkualitas dan perbaikan permukaan pondasi menggunakan dental beton serta metode Roller Compacted Concrete (RCC). Analisis dilakukan dengan menggunakan perangkat lunak GeoStudio (Sigma/W, Slope/W, Seep/W) untuk mengevaluasi deformasi vertikal (settlement), daya dukung tanah, dan stabilitas lereng. Hasil simulasi menunjukkan bahwa tanpa perbaikan, faktor keamanan pondasi tidak memenuhi syarat (FS = 1,32 < 1,5) dan terjadi penurunan diferensial hingga 20 cm, yang berisiko menyebabkan kebocoran pada zona inti bendungan. Setelah dilakukan perbaikan, kondisi pondasi menunjukkan peningkatan signifikan pada daya dukung dan kestabilan. Analisis biaya dan waktu menunjukkan bahwa metode RCC memberikan efisiensi pelaksanaan lebih tinggi dibandingkan metode dental beton.
Co-Authors Adhi , Bagas Wahyu Adi Wahyu Nugroho, Satrio ANDRI KURNIAWAN Bagas Wahyu Adhi, Bagas Wahyu Dwi Wahyu Hidayat, Dwi Wahyu Febriyanto, Wahyu Hayu Rahayu Hendramawat Aski Safarizki Mayasari, Sri Meylida, Dhonna Muhammad Shofwan Donny Cahyono Murtopo, Roni Nanda Syahputra, Hanif Norman Ray, Norman Rachmawatie, Srie Juli Ridwan Nurrohim, Rio Setiyanto, Beni Siswadi Siswadi Sri Listiyani, Kadek Carissa Sularno Syahputra, Hanif Nanda wahyu adhi, Bagas Yoga Prastika, Annisa