scholarly journals CAPACITY ANALYSIS OF SINGLE PILE BEARING CAPACITY BASED ON STATIC METHOD AND N-SPT TEST ON PILE DRIVING ANALYZER TEST (CASE STUDY OF PT. ASAHI FORGE INDONESIA PHASE II PROJECT)

Neutron ◽  
2019 ◽  
Vol 18 (2) ◽  
pp. 10-17
Author(s):  
Aseanto Resi

Soil investigation has an important role before building a building. The carrying capacity of the soil obtained from the results of soil investigations is very influential on the shape and dimensions of the foundation itself. In the PT.Asahi Forge Indonesia Project, the SPT test data is out of sync with the actual piling results related to embedded pile penetration. The design plan for piles with a length of 7 m based on the N-SPT test turned out that in the field, the piles achieved a bearing capacity at a depth of 9 meters. The final project aims to analyze and compare the carrying capacity of a single pile based on static methods and N-SPT test on the Pile Driving Analyzer. The method used in this research is the study method of laboratory test results and N-SPT. Work steps include; preparation, literature study, data collection, carrying capacity analysis, and comparison of analysis results. The results of the analysis of the carrying capacity of the piles based on the static method by the  (Vijayvergiya & Focht, 1974)  method  amounted to 549,201 kN; The (McClelland, 1974) Method  of 426,292 kN; The U.S Army Corps Method is 459,545 kN and the Tomlinson (1977)  Method is 474,191 kN. While the results of N-SPT were bearing piles bearing capacity with the Mayerhof (1956) method of 738,645 kN and the Schmertmann (1967) Method of 451,327 kN.  Based on these results, the N-SPT test based on the Mayerhof  (1956) Method of 738,645 kN was the closest to the PDA test results of 755,116 kN. The comparison of the results of the analysis between the static test, N-SPT and PDA test is 19: 24: 30. This means that the carrying capacity of the static pile and PDA test has a difference of 37% while between the N-SPT and PDA test has a difference of 20%.

2018 ◽  
Vol 73 ◽  
pp. 04015
Author(s):  
Eko Suwarno ◽  
Holi Bina Widjaya

The number of tourists who visit Goa Kiskendo Forest Tourism have been increased. By the increasing of tourists number will increase tourism activities so it will not be easy to manage it. It relates to realize the balance between tourism activities with environmental sustainability because with the increase will cause environmental damage. Therefore, to reduce the negative impacts, especially environmental biophysical conditions, it is necessary to conduct research on the carrying capacity analysis of the tourist environment in Goa Kiskendo Forest Tourism, which is linked to the maximum amount of visitors received in the area influenced by environmental biophysical aspects and management capacity. The method used refers to the Cifuentes formula (1992) which consists of Physical Carrying Capacity (PCC), Real Carrying Capacity (RCC) and Effective Carrying Capacity (ECC). Data collection was done by field observation / survey, literature study, questionnaire and limited interview. The carrying capacity analysis result of tourist environment in Goa Kiskendo Forest Tourism shows the PCC value is amount 3,930 visitors / day; RCC value is 276 visitors / day and ECC value is 184 visitors / day. This value when compared with the actual average number of current visitors is 37 visitors / day, is immobile far under the value of the effective carrying capacity analysis results. Founded on the effective carrying capacity value, the growth of Goa Kiskendo Forest Tourism can still be done by optimalization of the visitors number by 79.89% in accordance with the effective carrying capacity so the environmental conditions are stay awaked with the tourism activities in the location.


2020 ◽  
Vol 2 (2) ◽  
pp. 119-125
Author(s):  
Aseanto Resi ◽  
Al Rasyid Faris

The Cibitung - Cilincing toll road is faced with problems across many rivers and marshlands where the swampland is identified as clay. In building construction, the foundation is very important in bearing the burden of working on the upper construction. This Final Project contains the calculation of the carrying skin capacity and the end resistance of the pile using the Suyono method. S and Nakazawa (1990) based on N-SPT data and dynamic methods using the formula of Hiley (1930) based on the pile driving record data, then proceed to the calculation of the carrying capacity of the pile group, after that calculating the decrease of the pile using the Vesic method (1977). From the results of the analysis conducted by the author in calculating the bearing capacity to using N-SPT data and pile driving record data, the author gets that from the pile diameter of 50 cm, the carrying capacity of a single-pole is 66-ton, obtained using the method of Suyono S and Nakazawa, based on the formula of Hiley, it is obtained 139.34 tons, and settlement that occurred in the pile group foundation was an immediate settlement is 11.2 cm and a consolidation settlement is 6.2 cm.


Jurnal CIVILA ◽  
2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Reno Dwi Santoso ◽  
Dwi Kartikasari

In general, foundation is defined as the underground building that continues the load from the weight of the building itself and fromthe external load that works at the buildi ng to the ground around it. Carrying capacity analysis of pile is needed to get the planning of foundation that meetsthe requirements. There are many calculation methods used to analyze the carrying capacity of the pile, but it needs to consider which method is more fulfilling from the data in the field, for that, it needs  carrying  capacity  analysis  of  several  methods  based  on  field  data  using  sondir  data  and compared to one another to obtain more realistic results. Capacity analysis method of pile on the construction of Dams Motion in Sembayat Gresik uses static and dynamic methods. In the dynamic method, it use several methods, those are Hiley equation, Wika Method, ENR method, Eytelwein Method, Navy-Mc.Kay Method, and Michigan State Highway of Commission  Method. While in the static  method,  it  uses  Luciano  Dacourt  Method.  From  the  analysis  of  the  static  pile  carrying capacity obtained the result that pile carrying capacity calculation of Luciano Dacourt Method is smaller,  pull Q permitted  15.25 tons and maximum press Q  permitted    41.55 tons compared with the calculation method by using kalendering result of Eytelwein Method. In Eytelwein Method, the minimum pile carrying capacity is 61.566 tons of calculations in GW 1.


2019 ◽  
Vol 5 (4) ◽  
pp. 99
Author(s):  
Bayu Arifianto ◽  
Benny Moestofa

ABSTRAK Tanah lempung lunak adalah salah satu jenis tanah dasar yang sering menyebabkan masalah dalam berbagai jenis konstruksi karena daya dukungnya rendah dan kepekaan terhadap perubahan kadar air cukup tinggi. Oleh karena itu, perlu dilakukan perbaikan tanah dasar menggunakan bahan kimia Terra Firma untuk meningkatkan daya dukung tanah dasarnya. Penelitian ini dilaksanakan dengan pengambilan sampel dari Proyek Summarecon di Gedebage, Kota Bandung, termasuk pengujian skala laboratorium, untuk menentukan sifat fisik dan mekanik tanah lempung lunak. Uji skala laboratorium telah dilaksanakan pada berbagai variasi campuran tanah dengan komposisi Terra Firma 3%, 6%, dan 9%. Berdasarkan hasil uji laboratorium diperoleh nilai CBR tanah dasar sebesar 2,7% dan UCS 2,02 kg/cm², sedangkan hasil pengujian menunjukkan bahwa campuran Terra Firma yang paling efektif adalah 6% dengan waktu pemeraman selama 21 hari, dimana nilai CBR yang diperoleh sebesar 37,28% dan UCS 9,66 kg/cm². Oleh karena itu dapat disimpulkan bahwa penggunaan stabilisasi kimia Terra Firma dapat meningkatkan daya dukung tanah lempung lunak hingga 14 kali. Kata kunci: tanah lempung lunak, daya dukung, stabilisasi kimia, Terra Firma. ABSTRACT Soft clay soil is one of the basic types of soil that often causes problems in any kinds of construction due to its low bearing capacity and high sensitivity to changes in moisture content. Therefore, the soil needs to be repaired by applying Terra Firma chemicals to increase the bearing capacity of the soil. This research is conducted by taking soil samples from the Summarecon Gedebage Project area, Bandung City, and was conducted laboratory scale testing, to determine the physical and mechanical properties of soft clay soil. The laboratory scale test was conducted with various variations of ground mixture with Terra Firma 3%, 6%, and 9%. Based on laboratory test results it is found that the base soil CBR value is 2.7% and UCS 2.02 kg/cm², while the applied Terra Firma chemicals comparison result shows that the 6% mixture is the most effective with 21 days curing time, CBR value of 37.28% and UCS 9.66 kg/cm². Therefore it can be concluded that the use of Terra Firma chemicals can increase the bearing capacity of soft clay soil up to 14 times. Keywords: soft clay soil, bearing capacity, chemical stabilization, Terra Firma.


2020 ◽  
Vol 2 (3) ◽  
pp. 63-68
Author(s):  
Arif Sanjaya ◽  
Resi Aseanto

The foundation is a construction that continues the burden of the upper structure and passes it on to the soil below it. A bored pile foundation is now an option in working on structures in densely populated areas and tall buildings. The purpose of this study is to calculate and compare the carrying capacity of the bored pile foundation based on N-SPT data with the O 'Neil & Reese, and Reese & Wright methods, while the Loading test data with the interpretation of the Davisson method and the Mazurkiewicz method. The results of calculations based on N-SPT data, the average ultimate carrying capacity of the foundation with the O’neil & Reese method of 1211.61 tons, Reese & Wright of 1235.02 tons. While the Interpretation of Loading test method for Marzukiewicz is 1267.00 tons, Davisson is 850.40 tons, and the carrying capacity of PDA test results is 121.72 tons. From the calculation of the bearing capacity of the consecutive foundation of the smallest is the Davisson method, the O'neil & Reese method, the PDA test method, the Reese & Wright method, and finally the Mazurkiewicz method.


Author(s):  
Amelia Wijaya ◽  
Aksan Kawanda

<span><em>The foundation of the raft post is the bottom structure of a building that channeled the load from the structure </em><span><em>over the soil under it. Carrying capacity of drill pile foundation is influenced by the capacity of the pole tip</em><br /><span><em>and bearing capacity of the pole blanket. The decline in this area can be an immediate decline and a </em><span><em>decrease in consolidation. This study aims to analyze the decrease of raft poles and the proportion of load </em><span><em>bearing in the bogie area of the Kelapa Gading LRT warehouse depot - Jakarta. From the analysis of the</em><br /><span><em>NSPT test results in the field, the ultimate carrying capacity and the decrease that occurred on the raft poles </em><span><em>were obtained. Based on the results of calculation of the ultimate carrying capacity of a single drill pole of </em><span><em>1.1 x 104 kN and the carrying capacity of the group is 1.1 x 108 kN. Calculation of group efficiency with the </em><span><em>Feld method is obtained at a value of 0.588. In the calculation of the immediate decline of the pole, a value of </em><span><em>5 cm is obtained and a decrease in consolidation of 7 cm. From the calculation of the proportion of raft pole</em><br /><span><em>load bearing the value of Pr = 6 x 10-6 is obtained, which means that load bearing can be said to be </em><span><em>dominated by rafts.</em></span></span></span></span></span></span></span></span></span></span></span><br /><br class="Apple-interchange-newline" /></span>


2021 ◽  
Author(s):  
Bicheng Tang ◽  
Dong Zhang ◽  
Xuefeng Wang ◽  
Jingli Xie

In order to meet the high requirements of marine environmental protection and Eurocodes, based on the actual construction conditions of deep water on site in Croatia, the extra-long steel pile foundation was adopted to Pelješac Bridge. At the meantime the corresponding extra-large scale pile driving barge had to be used to carried out during the construction. The pile bearing capacity was analyzed and checked by the actual measured PDA (Pile Driving Analyzer) data. The test results showed that the toe bearing capacity of driven piles had linear relationship with blow counts, and the penetration (displacement/blow) before the stoppage was inversely proportional to toe bearing capacity. In addition, the traditional empirical formula of long-term pile bearing capacity of driven piles was only suitable for the piles, which were shorter than 100m. The stoppage criteria of extra-long pile should concentrate on penetration firstly, while the pile design elevation was subsidiary factor. Therefore, the analysis of pile driving procedure and results could be considered as significant actual engineering reference for the coming works.


2021 ◽  
pp. 1-11
Author(s):  
Jihan Melasari ◽  
Meri Sufina ◽  
Afdhal Yusra

Solid construction certainly has a strong foundation that sustain Minimizing the potential for a settlement and the destruction of the foundation is so important to be known. So we should be able to know exactly how large a bearing capacity of the foundation. The purpose of this thesis is to redesign the foundation witha bore pile foundation. So in terms of knowing the size of the bearing capacity of the foundation, ,we discusses how the value of the bearing capacity of the foundation analytically which in this case using mayerhoff method, the from data SPT will using reese & wright method and mayerhoff method. The value of bearing capacity that we seek to determine the strength of the foundation that suffer a load the which is located thereon. legislative officebuilding Dharmasraya using a pile foundation and design with bore pile foundation, At the point BH-1 the carrying capacity of the single pile foundation is greater than the load, the foundation is said to be safe, Q permits> the rated load is 2000,32 tons > 47,973 tons. At point BH-2 the bearing capacity of the pile foundation of the group is greater than the load, the foundation is said to be safe, Q permits > 2073,532 tons > 1218,989 tons. At point BH-1 the carrying capacity of single bore pile foundation is greater than load carrying, the foundation is said to be safe, Q permit> the mean load is 1230,249 tons > 47,973 tons. At BH-2 point thecarrying capacity of the bore pile foundation is larger than the load, the foundation is said to be safe, Q permits> the rated load is 1222,337 tons > 1218,989 tons. 


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