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All Journal IPTEK The Journal for Technology and Science Journal of Civil Engineering Syntax Literate: Jurnal Ilmiah Indonesia
Indrasurya Budisatria Mochtar
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Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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 1 
Determining the Characteristics of Trips Generated on Southern Bali using Category Analysis I Wayan Suweda; Achmad Wicaksono; Indrasurya Budisatria Mochtar
IPTEK The Journal for Technology and Science Vol 22, No 4 (2011)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v22i4.78

Abstract

Southern Bali, a tourism center of Indonesia, has been rapidly developed. Unfortunately, the development is not followed simultaneously by the development of adequate transportation network, as a result, traffic congestion are inevitably occurred along every urban road in the district. Therefore integrated development and regional transport planning therefore, is urgently required. In this study, trip generation is determined using Category Analysis. It is Figured out from the household based interview that Denpasar Barat zones are found to have the largest trip generation while Pecatu zones are found to be the smallest. Most of the household trips generated use private vehicles (94.95%) and the rest uses public transport. This also indicates that public transport services in Southern Bali still need to be developed.
Strategi Penanggulangan Masalah Kelongsoran Lereng Timbunan Tanah Studi Kasus Jalan Akses Gunung Batin Ruas Jalan Tol Terbanggi Besar – Pematang Panggang – Kayu Agung Firmansyah, Muchammad Angga; Mochtar, Indrasurya Budisatria; Sari , Putu Tantri Kumala
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v10i7.60746

Abstract

Pulau Sumatera merupakan pulau dengan kontribusi perekonomian terbesar kedua bagi Indonesia setelah pulau Jawa. Hal tersebut menjadi alasan Pemerintah pusat untuk mendorong pembangunan Jalan Tol Trans Sumatera (JTTS), salah satu jalur utama (backbone) JTTS adalah Ruas Jalan Tol Terbanggi Besar - Kayu Agung (TBPPKA). Pada ruas jalan tol tersebut terdapat beberapa permasalahan geoteknik, salah satunya longsor yang terjadi pada timbunan jalan akses Gunung Batin sepanjang 150 meter pada KM 1+230 s/d 1+383 dengan tinggi timbunan tanah tertinggi mencapai 9,5 meter dari permukaan tanah asli. Telah dilakukan pengambilan data tanah dilapangan yaitu 3 titik Bor dan 3 titik CPTu, serta telah dilakukan uji properties tanah di laboratorium sebagai data primer. Hasil data tanah menunjukkan bahwa timbunan didominasi dengan tanah berpasir yang secara umum dilihat dari uji NSPT memiliki klasifikasi medium dense (NSPT > 10) mulai dari kedalaman 2 m dan tanah keras klasifikasi dense (NSPT > 30) pada kedalaman diatas 10 m. Dari hasil analisa awal didapatkan nilai safety factor > 1,5 yang artinya tanah timbunan stabil saat timbunan tidak jenuh air. Tujuan penelitian ini adalah mengetahui penyebab terjadinya longsor pada jalan akses Gunung Batin serta memberikan alternatif penanganan perbaikan yang efektif dan efisien. Metode yang digunakan dalam penelitian ini adalah dengan menggunakan simulasi numerik elemen hingga menggunakan bantuan program GEO5 dan PLAXIS 2D dengan pendekatan filosofi cracked soil untuk mengetahui stabilitas lereng dan penyebab terjadinya longsor. Hasil analisa didapat bahwa lokasi longsor merupakan area limpasan air permukaan dan secara topografi tanah berada pada elevasi rendah dari area sekitar serta adanya fenomena cracked soil. Hal ini menyebabkan adanya perlemahan pada timbunan saat terjadi hujan, terbukti saat timbunan tanah dalam kondisi jenuh air dan parameter tanah dimodelkan dengan pendekatan filosofi cracked soil nilai kohesi (c) = 0 didapat nilai safety factor 0,79 < 1 yang mana timbunan mengalami kelongsoran. Perencanaan perbaikan diusulkan yang utama adalah pembuatan saluran drainase serta beberapa alternatif penanganan lain diantaranya kombinasi antara Dinding Penahan Tanah (DPT), Mini pile, Steel Sheet Pile (SSP) dan juga Bronjong. Dari pertimbangan aspek biaya beberapa alternatif penanganan, maka dipilih penanganan menggunakan DPT Beton Bertulang dengan pondasi Mini pile dengan biaya Rp. 2,669 miliyar.
SHEAR STRENGTH PARAMETER CORRELATION OF CRACKED SOILS FROM MODIFIED DIRECT SHEAR Rosa Irdiana; Indrasurya Budisatria Mochtar; Noor Endah Mochtar
Journal of Civil Engineering Vol. 36 No. 2 (2021)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v36i2.7634

Abstract

SUGGESTED GUIDELINES FOR DESIGN AND CONSTRUCTION OF SHORT—SPAN BRIDGE ABUTMENTS WITH REINFORCED EARTH SYSTEM Dwindu Agung Gumelar; Indrasurya Budisatria Mochtar
Journal of Civil Engineering Vol. 36 No. 2 (2021)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v36i2.7636

Abstract

COMPARISON BETWEEN THE RESULTS OF THE PILE BEARING CAPACITY ANALYSIS BASED ON EMPIRICAL METHOD AND FINITE ELEMENT METHOD USING THE RESULTS OF DYNAMIC ANALYSIS ON THE FIELD Michael Antonie Prayogo; Herman Wahyudi; Indrasurya Budisatria Mochtar
Journal of Civil Engineering Vol. 36 No. 1 (2021)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v36i1.7639

Abstract

There are many methods for calculating the bearing capacity of a pile foundation. The problem is finding the most representative method for analysis dynamic load testing (PDA) results in the field. This study only covers the areas of West Surabaya and North Surabaya. The method used to analyze the bearing capacity of the pile foundation in this study is the empirical method, namely the Schmertmann, Meyerhof, and L. Decourt method and the finite element method (FEM.). This research only for calculating the bearing capacity of precast pile foundations. The initial stage of the research was to collect soil survey data in the form of N-SPT boring logs and PDA test results in the area. Then the calculation analysis is carried out using the empirical method and FEM, which will be compared with the PDA results. FEM analysis uses dynamic load with pile driving modelling, which is similar to PDA testing. After comparison, the researchers find some ratios for each calculation method and results of PDAs in the field of study. This study indicates that the most representative method for PDA results in West Surabaya is the Meyerhof method. For the North Surabaya area, these methods have not shown expected results of PDA results in the field.
Co-Authors Achmad Wicaksono Dwindu Agung Gumelar Firmansyah, Muchammad Angga Herman Wahyudi I Wayan Suweda Michael Antonie Prayogo Noor Endah Mochtar Rosa Irdiana Sari , Putu Tantri Kumala