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All Journal TEKNIK JURNAL KARYA TEKNIK SIPIL Rang Teknik Journal
Patrick Matheus
Jurusan Tknik Sipil FT. UNDIP Jl. Prof. H. Soedarto SH., Tembalang, Semarang 50275
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering

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STUDI EKSPERIMENTAL PEMBERIAN TEGANGAN AWAL PADA DINDING BATAKO TANPA PLESTER DAN TANPA PEREKAT (BTPTP) DALAM MENERIMA BEBAN Firmansyah, Iman; Matheus, Patrick; Purwanto, Purwanto; Sabdono, Parang
Jurnal Karya Teknik Sipil Volume 3, Nomor 4, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (752.727 KB)

Abstract

Before the development of the framework structure (using beams and columns), loadbearing wall structure with loads that will work on the building structure bestowed on the walls commonly used in the community. One form loadbearing wall structure is commonly used arrangement brick wall. Adobe is a brick made by printing and maintaining in a damp atmosphere, tras mix, lime and water with or without other additives. One brick technology that has been developed is the use of brick without plaster and adhesives. The composition brick wall has a good ability in resisting axial forces but weak in resisting lateral forces. One of the solutions used to improve the ability of the composition of the brick wall is the lateral force resist giving the initial prestressing force (prestressed) through fastening reinforcement (via tightening bolts). Prediction failure of brick wall composition into focus the problem in this research. Experimental testing in the laboratory, carried out to see the damage that occurs in the form of brick walls in receiving loads (axial and axial-lateral). Abaqus (Simulia 6.10.1) Explicit is used as validation in predicting the form of failure that occurs in the composition of the brick Wall which receives load.
Analisis Penggunaan Cerucuk sebagai Soil Improvement Pengganti Prefabricated Vertical Drain (PVD) untuk Mempercepat Pelaksanaan Pekerjaan Matheus, Patrick; Hartono, Darwin
TEKNIK Vol 45, No 3 (2024): December 2024
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v45i2.63041

Abstract

Salah satu proyek jembatan di Kalimantan berdiri diatas tanah lunak (soft soil). Tanah lunak memiliki daya dukung yang kurang baik, kuat geser dan permeabilitas yang rendah serta kompresibilitas yang besar. Timbunan jalan pada proyek jembatan tersebut memerlukan waktu selama 310 bulan untuk mencapai konsolidasi 90%. Perencanaan awal untuk perbaikan tanah (soil improvement) menggunakan metode prefabrikasi drainase vertikal (PVD). Metode PVD dengan beban preloading memerlukan waktu 28 bulan untuk mencapai konsolidasi 90% atau daya dukung rencana. Pelaksanaan metode PVD  sulit dilakukan pada lahan dengan akses yang kurang baik untuk kendaraan berat (rig PVD).  Penelitian ini menganalisis penggunaan cerucuk dan geotekstil pada tanah dasar atau eksisting untuk mempercepat waktu pelaksanaan pekerjaan. Jumlah cerucuk di Kalimantan yang cukup berlimpah dan mudah dilakukan pengadaannya menjadi pertimbangan penggunaan metode perbaikan tanah ini. Hasil analisis dari penggunaan cerucuk dan geotekstil memberikan daya dukung yang baik terhadap beban rencana dengan faktor keamanan ≥ 1,3. Pelaksanaan cerucuk dan timbunan membutuhan waktu total pelaksanaan 7 bulan. Dengan demikian penggunaan cerucuk pada salah satu proyek jembatan di Kalimantan mengalami efisiensi waktu pengerjaan sebesar 75 persen dari rencana pengerjaan proyek menggunakan PVD selama 28 bulan.
EVALUASI PENGARUH TIMBUNAN DAN STOCKYARD PANCANG TERHADAP KEGAGALAN PANCANG (STUDI KASUS: PROYEK JEMBATAN X DI KALIMANTAN) Matheus, Patrick; Hartono, Darwin; Sukamta, Sukamta; Sadono, Kresno Wikan
Rang Teknik Journal Vol 8, No 2 (2025): Vol. 8 No. 2 Juni 2025
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v8i2.6722

Abstract

One of the bridge projects in Kalimantan is built on soft soil. Soft soil has poor bearing capacity, low shear strength and permeability, and high compressibility. One of the substructures of the bridge project, consisting of two spun pile points, experienced failure (exceeding the allowable inclination, indications of breakage at a depth of -8,000 mm, and failure to achieve the planned bearing capacity). The failure occurred after excavation for the pile cap was carried out.The additional load from preloading embankments and a spun pile stockyard, located 20,000 mm and 15,000 mm away, caused lateral deformation in the existing soil. This lateral deformation influenced additional deformation and bending moments in the failed spun piles. An evaluation of the additional load on the spun piles was conducted using the Finite Element Method with Plaxis 2D software. The additional load from the preloading embankments and stockyard was analyzed to determine its impact on the spun piles.The analysis showed that the additional load from the preloading embankments and stockyard caused lateral deformation, leading to deformation and bending moments in the spun piles. However, this additional load alone was not sufficient to cause failure in the spun piles.
Co-Authors Darwin Hartono Iman Firmansyah Kresno Wikan Sadono Parang Sabdono Purwanto Purwanto Sukamta Sukamta