scholarly journals ANALISIS PERBANDINGAN DAYA DUKUNG AKSIAL , EFISIENSI & BIAYA FONDASI TIANG PANCANG DAN TIANG BOR STUDI KASUS RUSUNAWA DAAN MOGOT

2021 ◽  
Vol 4 (2) ◽  
pp. 427
Author(s):  
Stefanus Andy Kurniawan ◽  
Gregorius Sandjaja Sentosa
Keyword(s):  
Cost Efficiency ◽  
Bored Pile ◽  
Driven Pile

AbstrakPada lokasi ini sendiri fondasi dalam sudah direncanakan dengan menggunakan tiang bor dengan diameter ɸ100 cm serta kedalaman 40 m memakan biaya sebesar Rp. 10.658.080.000,00 (dengan PPN 10%). Lalu pada studi ini ditujukkan untuk melakukan alternatif menggunakan tiang pancang untuk melihat mana yang lebih efisien dari kedua fondasi tersebut, dan didapatkan alternatif dengan diameter tiang pancang ɸ 50 cm dengan Panjang 36 m membutuhkan biaya sebesar Rp.5.945.005.364,00 (dengan PPN 10%) dengan perbandingan efisiensi biaya sebesar 44,22%.AbstractThe location itself was already planed  with bored pile ɸ100 cm with 40 m depth and it cost Rp.10.658.080,00 (with tax 10%). The purpose of this research to make an alternative with Driven Pile to see who more efficient from these two foundation, and got an alternative to use driven pile with  ɸ 50 cm dimension with  36 m depth that just need cost Rp.5.945.005.364,00 (with tax 10%) with 44,2% cost efficiency

scholarly journals Pile group settlement analysis on the basis of Static Load Test

2019 ◽  
Vol 97 ◽  
pp. 04031 ◽  
Author(s):  
Nikola Dudek
Keyword(s):  
Pile Group ◽  
Load Test ◽  
Static Load Test ◽  
Pile Groups ◽  
Stiffness Modulus ◽  
Test Load ◽  
Bored Pile ◽  
Driven Pile ◽  
Settlement Analysis ◽  
Element Method

Settlement of large pile groups is most often estimated by the Alternative Foundation Method. However, this method has some limitations related to assumed uniformity of pile loads. A very big problem is also related to estimating the stiffness of subgrade loaded by a group of piles. Similar problems arise when piled foundation is numerically modelled in Finite Element Method or Boundary Element Method programmes. The results obtained are highly dependent on the input data, especially on characteristics describing soil subgrade stiffness and strength and moduli at pile – soil contact. The paper presents an example of using the results of trial static calculations for the pile made using a technology not identical with that ultimately implemented for the project. The subgrade stiffness modulus was determined with Inverse Analysis using bored pile test load. The results attained were used for further calculations (forecast) the settlement of prefabricated driven pile (a single one) and then to estimate of pile group settlement under full load from bridge structure abutment.

scholarly journals THE FORECAST OF LONG-TERM SETTLEMENT OF THE PILE ON SANDSTONES AND CLAYSTONES OF THE PERMIAN AGE

2019 ◽  
Vol 10 (2) ◽  
pp. 5-13
Author(s):  
E. N Sychkina ◽  
I. V Ofrikhter ◽  
V. V Antipovov
Keyword(s):  
Software Package ◽  
Numerical Experiments ◽  
Field Tests ◽  
Driven Piles ◽  
Linear Elastic ◽  
Bored Pile ◽  
Single Piles ◽  
Driven Pile ◽  
Plaxis 3D

In the article the problem of ensuring the long-term settlement of single piles on claystones and sandstones are reviewed. Incorrect assessment of stabilized settlement of pile foundation can lead to an emergency situation. At the present time for prediction of foundation settlement is widely used finite element method, implemented in a variety of software systems. The aim of the study was to select the optimal model in the software package Plaxis 3D to forecast settlement of driven and bored piles on claystones and sandstones. The authors solved the following tasks: 1) review of the knowledge of long-term settlement of single piles and pile foundations on claystonese and sandstones is performed; 2) the technique is described and numerical experiments are performed in the software package Plaxis 3D for modeling the settlement of a single driven pile and bored pile on claystones and sandstones with varying degrees of weathering; 3) comparison of the results of numerical experiments with long-term field tests of piles on claystones and sandstones is performed; 4) findings from the study are formulated. Numerical experiments of modeling in the software package Plaxis 3D work of driven piles on claystones and sandstones showed that the introduction of soil compaction zones around the driven pile into the calculation scheme makes it possible to obtain close values to long-term settlement of full-scale piles. The authors recommend using the Hardening soil model to predict the work of a driven pile on claystones and sandstones and the Linear-Elastic model to simulate the work of a bored pile on claystones and sandstones. For highly weathered claystones and sandstones soil models need to be corrected for numerical calculations in Plaxis 3D, since the use of the Hardening soil and Linear-Elastic models showed underestimated settlement values in relation to field tests of driven piles.

A generalized fuzzy cost efficiency model

2020 ◽  
Vol 54 (6) ◽  
pp. 1775-1791
Author(s):  
Nazila Aghayi ◽  
Samira Salehpour
Keyword(s):  
Cost Efficiency ◽  
Minimum Cost ◽  
Extensive Literature ◽  
Data Envelopment ◽  
Fuzzy Environment ◽  
Decision Making Unit ◽  
Production Possibility Set ◽  
Fuzzy Cost ◽  
The Cost ◽  
Generalized Cost

The concept of cost efficiency has become tremendously popular in data envelopment analysis (DEA) as it serves to assess a decision-making unit (DMU) in terms of producing minimum-cost outputs. A large variety of precise and imprecise models have been put forward to measure cost efficiency for the DMUs which have a role in constructing the production possibility set; yet, there’s not an extensive literature on the cost efficiency (CE) measurement for sample DMUs (SDMUs). In an effort to remedy the shortcomings of current models, herein is introduced a generalized cost efficiency model that is capable of operating in a fuzzy environment-involving different types of fuzzy numbers-while preserving the Farrell’s decomposition of cost efficiency. Moreover, to the best of our knowledge, the present paper is the first to measure cost efficiency by using vectors. Ultimately, a useful example is provided to confirm the applicability of the proposed methods.

PENERAPAN ENVIRONMENTAL MANAGEMENT ACCOUNTING PADA KANTOR DINAS PEMERINTAHAAN WILAYAH JAWA TIMUR

2018 ◽  
Vol 5 (2) ◽  
pp. 117
Author(s):  
Dianne Frisko ◽  
Desi Arisandi
Keyword(s):  
Environmental Management ◽  
Public Service ◽  
Environmental Sustainability ◽  
Cost Efficiency ◽  
Management Accounting ◽  
Environmental Damage ◽  
Environmental Management Accounting ◽  
Cost Inefficiency ◽  
Government Institution ◽  
Main Material

Induztrialization edge and economic growth bring some consequences to the society, such as pollution or environmental damage. The responsibility is not only lies in business sector but also contributed by society and public sector-government institution as their daily operational produce some waste material. One ofmaterial use in such organization daily activities is paper. Unproper use of paper will impact on cost inefficiency, as well as environmental damage due to the main material of producing paper taken from forest.Government as public service organization mostly deals with paper in their daily administrative business. While the othersites it also encouraged to put priority on budget efficiency included in paper consumption. This study aims to describe in what extend government efficiency initiative align in it environmental concerned. Specifically this study will explore the use of paper as one of most daily resource in government office using environmental management accounting (EMA)framework. The results convey that notion on some regulation pertaining with budget efficiency in Indonesia has similarity with the spirit and the benefit provided in term of EMA application. By implementing EMA properly, government may get information on cost efficiency along with environmental sustainability.

Logging cost efficiency

2018 ◽  
Author(s):  
F. Kartawidjaja
Keyword(s):  
Cost Efficiency

ANALISIS FONDASI BORED PILE PADA GEDUNG 23 LANTAI DI TANAH LEMPUNG DAERAH CIBUBUR

2019 ◽  
Vol 18 (2) ◽  
pp. 219-227
Author(s):  
Febry Mandasari ◽  
Annisa Fauziyah
Keyword(s):  
Bored Pile ◽  
Boring Hole

Indonesia terletak pada pertemuan antara lempeng tektonik yang akibat pertemuan tersebut membentuk gugusan kepulauan di Indonesia. Konsep bangunan tahan gempa wajib dipahami dan dapat dilakukan inovasi berupa bangunan tahan gempa agar dapat meminimalisir terjadinya kerusakan struktur dan adanya korban jiwa akibat gempa bumi yang terjadi. Bangunan tahan gempa yang dimaksud adalah sebuah bangunan yang tidak mengalami kegagalan atau tidak mengalami kerntuhan pada saat gempa besar terjadi dapat memberikan waktu untuk melakukan evakuasi lebih lama. Fondasi didefinisikan sebagai bagian dari struktur bangunan yang berhubungan langsung dengan tanah dan berfungsi untuk menyalurkan beban yang diterima dari struktur atas ke lapisan tanah. Penelitian ini dilakukan pada lokasi perancangan pembangunan struktur gedung beton bertulang 23 lantai yang akan dibangun di Jl. Raya Alternatif Cibubur (Trans Yogie), Cibubur Depok (16945). Perencanaan fondasi ini menggunakan metode Meyerhoff dengan memakai data NSPT pada boring hole 2. Diameter tiang fondasi yang digunakan adalah 80 cm dengan kedalaman 20 m. Daya dukung ultimit tiang yang didapatkan adalah 906,708 ton dengan faktor keamanan 2,5 sehingga didapat daya dukung ijin tiang sebesar 362,431 ton. Penurunan fondasi tiang terjadi sebesar 0,0323 m atau setara dengan 32 mm dimana penurunan ini termasuk ke dalam batas aman penurunan yakni kurang dari 65 mm.

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