scholarly journals Analisis Daya Dukung Tanah Pondasi Dalam Berdasarkan Data Lapangan Di Desa Baringin Kota Palangka Raya

2020 ◽  
Vol 9 (1) ◽  
pp. 70-77
Author(s):  
Amanda Rachmad Pratama ◽  
Rida Respati ◽  
Norseta Ajie Saputra

Soil bearing capacity is the ability of the soil to support the foundation load acting on it. To produce an accurate bearing capacity, it is necessary to know the properties and characteristics of the soil. For this reason, a comparison of the carrying capacity of the soil is carried out based on the calculation of CPT / Sondir and SPT to be able to plan a safe and economical pile foundation. The purpose of this study was to determine the amount of soil bearing capacity of the deep foundation in the environment around the Ataqwa Mosque, Baringin Village, Palangkaraya City based on field tests, and based on laboratory tests, and to determine the value of the comparison between the Mayerhof Method and the Schmertmann-Nottingham Method. Based on the Sondir value, it is continued with the calculation of the carrying capacity of the soil, then the calculation results are analyzed and concluded. From the calculation of the value of the carrying capacity of the foundation pile implementation of point 1 (one), the highest value of 400 mm diameter piles in the Meyerhoff method is 75,319 kg, while the lowest bearing capacity value is also at 400 mm piles of 10,676 kg. For point 2 (two), the highest value is obtained at 400 mm diameter piles in the Shmertmann-Nottingham method of 65,853 kg, while the lowest bearing capacity value is also at 400 mm piles of 10,676 kg

2021 ◽  
Vol 4 (2) ◽  
pp. 129
Author(s):  
Lintang Ratnasari Satiti ◽  
Yosef Cahyo Setianto Poernomo ◽  
Sigit Winarto ◽  
Andri Dwi Cahyono

The foundation is an important part of the building structure because it functions as a support. The selection of this pile foundation has various considerations, namely the pile foundation can achieve the hardest soil bearing capacity, made with a manufacturing system, then the quality of the concrete can be guaranteed, the soil bearing capacity is not only obtained from the tip of the pile. Foundation planning needs to be well planned to support user safety and comfort. Pile foundation is one type of foundation chosen because it is more cost-effective and quality than other foundations. This study aims to plan the pile foundation for a new building at Baptist Hospital Kediri. The calculations carried out include calculating the load received by each column, the carrying capacity of a single pile permit, the dimensions and depth of the pile, as well as the required pile cap dimensions. Calculation of the pile foundation is carried out using the Mayerhoff method. The calculation results show that the load on the column area (K13) is 212.23.04 tons, the carrying capacity of the single pile permit (Qall) is 87509.33 kg and Quult is 218773.3 kg and the use of 4 piles on one pile with dimensions of 40 x 40 cm with a depth of 10.6 m, With these results can be used as a reference in the construction of a new building Baptist Hospital that is safe and able to withstand the load of the building.


2020 ◽  
Vol 198 ◽  
pp. 02017
Author(s):  
Zhongju Feng ◽  
Shaofen Bai ◽  
Wu Min ◽  
Jingbin He ◽  
Zhouyi Huang ◽  
...  

In order to study the influence of steep slope-karst coupling on the vertical bearing characteristics of pile foundation, the orthogonal simulation tests of pile foundation under 4 different roof thickness and 5 different slope are carried out by using Marc finite element software, and the correction coefficient of vertical partial bearing capacity of pile foundation according to roof thickness and slope is put forward. The test results show that when the thickness of the roof is more than 3 times the pile diameter, the ultimate bearing capacity of the pile foundation tends to be stable, and the value is about 19% when the slope is 45°; the ultimate bearing capacity of the pile foundation decreases gradually with the increase of the slope, and the reduction reaches 29.83% when the slope is greater than 45°. According to the calculation results, the variation law of vertical partial bearing capacity of pile foundation is analyzed, and the calculation formula of standard value of vertical ultimate bearing capacity of pile foundation in steep slope karst area considering both roof thickness and slope is put forward, and the correction coefficients αi and β are put forward.


Author(s):  
Nusa Setiani Triastuti ◽  
Indriasari Indriasari

<p><em>Pile foundation is one of the solutions of high-rise buildings not in the area of restrict area. When the pile foundation reached until the hard ground reaches, a small settlement is expected and  different  setlement  are  not occur. The objective: analyze the results of loading tests compared carryng capacity calculations, pile cap thick required secure.</em></p><p><em>The research method used in this research is the case study of pile foundation  twelve floors building in Batam island. The reaction on the pile is analyzed using software program of non-linear structure version 9.5 which is supported by primary data, namely loading test and secondary data of soil investigation and the largest column force taken on the pole 1.618,854 ton, Mx -7,936 ton meter, My -75,531 ton meter.</em></p><p><em>Carrying capacity analysis is based on friction and end bearing and calculated pole efficiency. The axial load of the plan is supported by 16 (sixteen) piles, based on the loading test (P) the ultimate pile foundation reaches 200% (two hundred percent) in the amount of 411.52 tons. </em><em>Single pile carrying capacity is 205.76 tons .Settlement in the loading test results 10mm is smaller than from the setlement in calculation results. The stress acting on the pile cap of 12.453 kg/cm<sup>2</sup> is smaller than the permit strees of 13 kg/cm<sup>2</sup>.</em></p>


2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Lei Yan ◽  
Gang Wang ◽  
Min Chen ◽  
Kefeng Yue ◽  
Qingning Li

In order to study the theory and application of the pile foundation underpinning technology, 3 local node models of underpinning structures with a similarity ratio of 1/1 were made and the progressive repeated static loading tests were conducted. The shear and antislip properties of the joint are studied, and the improved formula for calculating the shear capacity is proposed. The results show that a planting bar plays a major role in shear resistance, and the hoop rate can improve the shear capacity of the interface. The new formula for calculating the shear-bearing capacity is proposed, and the calculation results of the formula of shear-bearing capacity are in good agreement with the experiment results. It is completely feasible to use this formula to calculate the shear-bearing capacity of the pile foundation underpinning structure. During the test, the bearing capacity of the model is good, which proves the reliability of the underpinning technology is good, and it can provide experimental and theoretical basis for the underpinning of similar projects.


2018 ◽  
Vol 41 (1) ◽  
pp. 31-61
Author(s):  
Mariusz Wesołowski ◽  
Agata Kowalewska ◽  
Bartosz Świerzewski

Abstract The age of currently operated concrete airfield pavements in Poland exceeds 30 years operation period many times. Such a long working life of airfield pavements forced to search for the efficient and fast technologies of their reconstruction. The article described in detail the technologies of fast reconstruction of airfield concrete slabs using prefabricated slabs. The addressed technology guarantees the reconstruction and even the improvement of the condition of loadbearing capacity of mentioned airfield slabs which was confirmed during laboratory tests, field tests and practically verified in the real operation in the International Airport Kraków-Balice.


Author(s):  
Yogesh K S

Pile foundation is one of the effective forms of deep foundation. This is to be used where the load has to be transferred to deeper layers of soil and it can with stand uplift forces in foundations in expansive soil and also in case of floating foundations. The finite element method is one of the most versatile and comprehensive numerical technique which can be used for analysis of structures or solids of complex shapes and complicated boundary conditions. There are different variables which influence the load carrying capacity of pile foundation. But only some of those have significant influence on load carrying capacity. Here those variables are considered and the variation of load carrying capacity with the change in value of those variables is observed. Those variables are pile length and pile diameter, analysis of pile foundation was carried out to determine the ultimate load carrying capacity of pile for different lengths and diameters in cohesive soil, the corresponding settlement was also determined.


2020 ◽  
Vol 3 (2) ◽  
pp. 467
Author(s):  
Swendrinata Suwardi ◽  
Andryan Suhendra

The Battered Pile  is one of the foundation designs that aims to increase the lateral bearing capacity of the foundation. Battered Pile are designed with a certain slope that aims to increase the lateral capacity of the soil. The type of soil used will affect the lateral capacity of the pole. Calculation of bearing capacity of the pile is carried out on the condition of clay and sand soils at slope 00 to +200. The calculation results will then be analyzed to understand the effects that occur. The calculation results will be presented in the p-y curve method. The use of this method is expected to make it easier to understand the characteristics of Battered Pile for soil conditions. Based on the analysis it was found that an increase in the  capacity of the pile up to 23% in the slope of 100 to 150. Sand soil in conditions below the surface of the ground water will have a linear carrying capacity and have a lower deflection value when compared to clay soil at a depth of 2 meters. But at a depth of 16 meters, clay has a point where it has a lower deflection value compared to sandy soil.AbstrakTiang pancang Battered Pile merupakan salah satu rekasaya fondasi yang bertujuan untuk meningkatkan daya dukung lateral fondasi. Tiang Battered Pile dipancang dengan kemiringan tertentu yang bertujuan untuk meningkatkan daya dukung lateral tanah. Jenis tanah yang digunakan akan mempengaruhi daya dukung lateral tiang. Perhitungan daya dukung tiang dilakukan pada kondisi tanah lempung dan tanah pasir pada kemiringan 00 hingga +200. Hasil perhitungan kemudian akan dianalisis untuk memahami pengaruh yang terjadi. Hasil perhitungan akan disajikan dalam metode p-y curve. Penggunaan metode ini diharapkan dapat memudahkan dalam memahami karakteristik tiang Battered Pile terhadap kondisi tanah. Berdasarkan analisis didapatkan bahwa terjadi peningkatan daya dukung tiang hingga 23% pada kemiringan 100 hingga 150. Tanah pasir pada kondisi di bawah permukaan air tanah akan mengalami kenaikan daya dukung secara linier  dan memiliki  nilai lendutan yang lebih kecil jika dibandingkan dengan tanah lempung pada kedalaman 2 meter. Tetapi pada kedalaman 16 meter, tanah lempung memiliki titik dimana memiliki nilai lendutan yang lebih kecil jika dibandingkan dengan tanah pasir.


2021 ◽  
Vol 4 (2) ◽  
pp. 41
Author(s):  
Erwin Dwi Laksana ◽  
Edy Gardjito ◽  
Suwarno Suwarno ◽  
Faiz Muhammad Azhari ◽  
Imam Mustofa

The foundation is one part under the building that has a very important role. The choice of the type of foundation is something that needs to be considered. One type of foundation that is widely used is the minipile foundation. Minipile foundation itself is a type of foundation that is used if the load received from the superstructure is not too heavy and the hard soil type is at a depth of between 5-10m. The purpose of this study was to plan the bearing capacity of the minipile foundation pile in the PT. BPJE in Ngasem, Kediri Regency. The building is planned to be used as an office building. The planned sub-building includes foundation planning with a mini-square building with a cross-sectional dimension of 20x20. The calculations carried out include the calculation of the bearing capacity of the foundation using the Mayerhoff method, the calculation of the flexural factor and the calculation of reinforcement. The calculation results (sigma Vertical Ultimate) Vu = 114.78 tons. With bending factor tk = 286.95 kg /. The reinforcement in the pile cap for the x direction of tensile reinforcement = D16–170 and compression reinforcement = D16–250 while for tensile reinforcement in the y direction = D16 - 170 and compressive reinforcement = D10 - 250. Thus, the results of the planning can be used as a reference for the implementation of building construction. office of PT. BPJE in Ngasem, Kediri Regency.


2013 ◽  
Vol 351-352 ◽  
pp. 329-336 ◽  
Author(s):  
Xu Chen ◽  
Hui Min Li

In recent years, the portal frame structure in the actual project has been widely used, but using the finite element method calculation of stable bearing capacity of portal frame is more complex, and very difficult to the design and construction personnel. With the known stability of the cantilever column carrying capacity and the vertex of the lateral displacement under concentrated force, the establishment of the ratio of the portal frame stability capacity and the stability of the cantilever column carrying capacity both in the same concentrated force vertex lateral displacement than the relationship between the structural mechanics solver to seek out frame to the lateral displacement of the vertex under concentrated force, obtained by computing the stability capacity of the portal frame, and with the exact solution comparison and found that the methods of theoretical calculation results coincide with the exact solution, and then get an easy way of solving the portal frame stable bearing capacity. After numerical example, this method is simple, easy to master, and it has important reference value.


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.


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