scholarly journals The Study Deformation Of Bore Pile Foundation Caused by Horizontal Load In Soft Clay

2021 ◽  
Vol 1 (1) ◽  
pp. 55-60
Author(s):  
Fadel Jehlaeh ◽  
Helmy Darjanto ◽  
Hendro Sutowijoyo
Keyword(s):  
Bearing Capacity ◽  
Pile Foundation ◽  
Soft Clay ◽  
Capacity Analysis ◽  
Winkler Foundation ◽  
Horizontal Load ◽  
Soil Slope ◽  
Beam Method ◽  
Bore Pile ◽  
External Forces

A sturdy of building must be contain with a strong foundation, which is able to withstand the burden on it;  channel the load into the ground and be able to withstand external forces such as earthquakes. In this study discussed the deformation of the bore pile foundation due to horizontal load on the soil slope by using the Lpile application.The  aim is to know the displacement of foundation motion due to horizontal loads using the Lpile application, Lateral bearing capacity analysis which is important aspect in the design of the foundation to anticipate the failure of the pile foundation. One method is the p-y curve, It is a development of the Beam method in the Winkler Foundation.

scholarly journals Bearing capacity analysis of helical pile foundation on peat

2018 ◽  
Vol 195 ◽  
pp. 03005
Author(s):  
Ferry Fatnanta ◽  
Andarsin Ongko
Keyword(s):  
Bearing Capacity ◽  
Pile Foundation ◽  
Load Test ◽  
Building Construction ◽  
Capacity Analysis ◽  
Cross Sectional ◽  
Tension Tests ◽  
Constant Rate ◽  
Helical Piles ◽  
The Individual

Peat is a kind of soil with a very low bearing capacity and high compressibility. Generally, a building construction on peat is done by using a wooden pile foundation. However, the length of the wooden piles is sometimes limited and causes the friction strength between the soil and wooden piles to became suboptimal. In order to enhance the bearing capacity of the foundation, the cross-sectional area of the foundation needs to be enlarged. One of the solutions for this problem is through helical piles. There are two methods to determine the helical pile`s bearing capacity, i.e. individual bearing and cylindrical shear methods. In this paper, bearing capacity prediction was discussed. A foundation load test was thoroughly done by a constant rate of penetration. This test consisted of compression and tension tests. The result was analyzed by individual bearing and cylindrical shear methods and next compared to each other. The result of the analysis has shown that the individual bearing method was more suitable in predicting helical piles’ bearing capacity since it produced the lowest error rate, with a magnitude of 21,31%.

Predicting the overall horizontal bearing capacity of jack-up rigs using deck–foundation–soil-coupled model

2020 ◽  
pp. 147509022092590
Author(s):  
Qilin Yin ◽  
Jinjin Zhai ◽  
Sheng Dong
Keyword(s):  
Bearing Capacity ◽  
Failure Mode ◽  
Double Layer ◽  
Soft Clay ◽  
Coupled Model ◽  
Single Layer ◽  
Horizontal Load ◽  
Foundation Soil ◽  
Failure Envelopes ◽  
Jack Up

The overall bearing capacity of a jack-up rig under horizontal load is conducted using finite element models that consider the deck–foundation–soil interaction. In these models, the simplified horizontal load acts on the deck and increases until the platform loses its stability. The effects of the self-weight of the platform W and load direction α on the ultimate horizontal bearing capacity Hult are investigated, and W- Hult failure envelopes under different α conditions are obtained. Two typical seabed types, including the double-layer seabed of sand overlying soft clay and the single-layer seabed of sand, are considered. The results show that a critical self-weight Wcritical exists in the double-layer seabed. Based on Wcritical, the failure of the platform presents two different modes. When W <  Wcritical, the windward leg is pulled up, and Hult increases with the increase in W. When W >  Wcritical, the failure mode is the leeward leg or legs puncturing the bearing sand layer, and Hult decreases with the increase in W. In the single-layer seabed, the failure mode is the windward leg being pulled up, and Hult increases with the increase in W throughout the whole range. The W- Hult envelopes in these two types of seabeds are basically the same when W <  Wcritical.

scholarly journals Influence of Karst Caves at Pile Side on the Bearing Capacity of Super-Long Pile Foundation

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Peisen Wang ◽  
Hongyan Ding ◽  
Puyang Zhang
Keyword(s):  
Bearing Capacity ◽  
Pile Foundation ◽  
Horizontal Displacement ◽  
Vertical Displacement ◽  
Horizontal Load ◽  
Karst Cave ◽  
Karst Caves ◽  
Karst Areas ◽  
Vertical Bearing ◽  
Vertical Bearing Capacity

The differences in development and situation of karst caves lead to two kinds of karst caves, and the karst cave may be on the pile side or at the pile bottom, which has a different influence on the bearing capacity of pile foundation. The paper presents a numerical analysis of the influence of karst caves at pile side on the bearing capacity of super-long pile foundation in karst areas. According to the size of pile foundation of a real bridge project, this paper modelized karst caves and investigated the karst cave from the effect of length, height, and thickness of roof on horizontal and vertical bearing capacity of pile foundation. The main conclusions can be drawn as: when the horizontal displacement at the top of pile foundation is greater than 0.05 m, the horizontal load is correlated positively with the length of karst cave; when the vertical displacement is greater than 0.07 m, the vertical load is correlated negatively with the thickness of the roof of karst cave. However, the height of karst cave has little effect on the bearing capacity; also the existence of karst cave has little influence on the dynamic response of pile foundation. The results of this study can be important with reference to the design and construction of pile foundations in karst areas.

Numerical Analysis of the Influence of Vertical Load on the Horizontal Bearing Capacity of Single Pile

2011 ◽  
Vol 374-377 ◽  
pp. 1947-1952 ◽  
Author(s):  
Zhao Yun Xiao ◽  
Guo Xun Zhang ◽  
Wei Xu ◽  
Zhong Ming Xue
Keyword(s):  
Numerical Simulation ◽  
Bearing Capacity ◽  
Pile Foundation ◽  
Sandy Soils ◽  
Single Pile ◽  
Horizontal Load ◽  
Clayey Soils ◽  
Vertical Load ◽  
Concrete Pile ◽  
Finite Element Numerical Simulation

It is a complicated progress of interaction between pile and soil when pile is under both vertical load and horizontal load. This paper analyzes the variation of stress, strain, deformation and deflection of the pile body by finite element numerical simulation of single bored concrete pile under vertical load together with horizontal load. Based on the existing research results, conclusions could be that the vertical load can increase horizontal bearing capacity of the pile in sandy soils, but horizontal bearing capacity of the pile in clayey soils is more complicated. Hope that the simulation can provide some references for the design of pile foundation.

scholarly journals Bearing Capacity Analysis of Spun Pile Foundation in Gas Engine for Electrical Power Plant Project of Selayar

2020 ◽  
Vol 7 (2) ◽  
pp. 123
Author(s):  
Indra Mutiara
Keyword(s):  
Power Plant ◽  
Bearing Capacity ◽  
Pile Foundation ◽  
Electrical Power ◽  
Capacity Analysis ◽  
Water Tank ◽  
Gas Engine ◽  
Service Water ◽  
Allowable Bearing Capacity ◽  
Electrical Power Plant

Gas Engine for Electrical Power Plant Project of Selayar is a power plant which will be built in Selayar Regency. This plant uses gas and biodiesel as a fuel. The facilities needed in the power plant construction includes a Gas Engine, Service Water Tank and Biosolar Tank. This study aims to obtain the allowable bearing capacity of the prestressed spun pile foundation for the three buildings based on soil investigation data of SPT (Standard Penetration Test) at BH-1 (gas engine), BH-2 (service water tank) and BH-3 (biosolar tank). The Meyerhof formula is used for the calculation of ultimate bearing capacity analysis on prestressed spun piles with various diameters for each depth. Calculation of the allowable bearing capacity (Qa) of the foundation at a depth of 19 meters, using a spun pile with a diameter of 300 cm, obtained a Qa value of 94.17 tons at BH-1, 94.20 tons at BH-2, and 74.65 tons at BH-3. Using a spun pile with a diameter of 400 cm, the Qa values were 116.71 tons on BH-1, 117.64 tons on BH-2, and 91.92 tons on BH-3. Using a spun pile with a diameter of 500 cm, the Qa values were 168.67 tons on BH-1, 172.09 tons on BH-2, and 131.49 tons on BH-3. Meanwhile, the values of Qa obtained were 229.85 tons on BH-1, 236.66 tons on BH-2, and 177.79 tons on BH-3 with the use of a spun pile with a diameter of 600 cm.

scholarly journals Perencanaan Ulang Pondasi Pilar Jembatan Sikabu Kayu Gadang

2021 ◽  
pp. 64-67
Author(s):  
Chairi Ozi
Keyword(s):  
Human Resources ◽  
Bearing Capacity ◽  
Pile Foundation ◽  
Precast Concrete ◽  
Pile Group ◽  
Shear Reinforcement ◽  
Deep Foundation ◽  
Road Users ◽  
Steel Piles ◽  
Bore Pile

The construction of transportation facilities such as bridges plays an important role in the development of human resources today because more and more road users will use these facilities. The Sikabu Kayu Gadang Bridge has a span of 100 meters with a structure of precast concrete, abutments, pillars and a foundation of concrete and steel piles which inspired the authors to conduct research. In this type of selection, several things need to be considered, such as the load being carried and the location of the hard ground. Based on this, this study aims to analyze the deep foundation that can be applied to the project in the hope of getting more efficient results. Based on the re-planning, the bearing capacity of the foundation permit (Qall) is 1254.98 kN with a diameter of 0.5 m and a depth of 20 m. The permitted bearing capacity of the pile group (Qall) is 12795.46 kN to withstand the loads acting on the superstructure. Bore Pile foundation logitudinal reinforcement = 10 D16 and Bore Pile shear reinforcement = ᴓ 12 – 150 mm.

scholarly journals Axial Bearing Capacity Analysis of Pile Foundation using Nakazawa Method

Jurnal IPTEK ◽  
2020 ◽  
Vol 24 (1) ◽  
pp. 45-52
Author(s):  
Laras Laila Lestari ◽  
Jaka Propika ◽  
Aisyah Dwi Puspasari
Keyword(s):  
Bearing Capacity ◽  
Soil Type ◽  
Pile Foundation ◽  
Capacity Analysis ◽  
Calculation Methods ◽  
Soft Soils ◽  
N Value ◽  
Axial Forces ◽  
Friction Bearing ◽  
Friction Interaction

Pile foundation serves to distribute all the loads in the building to the ground. There are several calculation methods for bearing capacity of pile foundation, one of them is Nakazawa method. Nakazawa method adapted from calculation used in Japan where it is relevant for soft soils. The aim of this research is to obtain axial bearing capacity of pile foundation that can withstand axial forces using Nakazawa method. The parameter that used for the calculation is modified or average N-value (). The analysis result shows the  value is smaller than N existing, indicate that Nakazawa tend to use weaker value of N blows. It means the calculation is considered softer type of soils than the existing ones.The value of point bearing capacity, Rp, assimilate to the pattern of N-SPT. The result value of friction bearing, Rf, in respect of depth shows the linear trending. Rf along the pile depends on the friction interaction between soil and structure. This phenomena influenced by the soil type. The value of cohession along the pile augment, means the ability of soils to stick to the pile/structure is also high. It explains why the value of friction bearing is bigger in respect of depth.

scholarly journals Numerical Modelling and Bearing Capacity Analysis of Pile Foundation

2015 ◽  
Vol 111 ◽  
pp. 356-363 ◽  
Author(s):  
Kazimierz Józefiak ◽  
Artur Zbiciak ◽  
Maciej Maślakowski ◽  
Tomasz Piotrowski
Keyword(s):  
Numerical Modelling ◽  
Bearing Capacity ◽  
Pile Foundation ◽  
Capacity Analysis

scholarly journals STUDI PERENCANAAN PONDASI TIANG PANCANG PADA JEMBATAN KERETA API KM 95+870 JOMBANG MADIUN

UKaRsT ◽  
2019 ◽  
Vol 3 (1) ◽  
pp. 64
Author(s):  
Fauzie Nursandah
Keyword(s):  
Bearing Capacity ◽  
Carrying Capacity ◽  
Pile Foundation ◽  
Horizontal Load ◽  
Vertical Load ◽  
Railway Bridge ◽  
The Road ◽  
The Stability ◽  
Rolling Stability ◽  
Spt Data

ABSTRACTBridges are complementary buildings that are used to continue the road or railroad that are cut off due to obstacles such as rivers, waterways, roads and valleys. As with the Jombang - Madiun railway bridge BH 258 km 95 + 870 Kertosono. The bridge that was built on the Brantas river aims to increase the number of new lanes to four lanes.The author wants to plan the development with a pile foundation. This foundation is planned by the Mayerhof method based on the SPT data obtained from the Contractor on the construction of the project namely Hutama, Modern Mitra, KSO.In the study of pile foundation planning obtained a vertical load of 8,708,531 tons, horizontal load of 567.69 tons, bearing capacity of the foundations was equal to 10.006.22 tons greater than the axial force that occurred which was 8,708,531 tons. The rolling stability value is 16.04 greater than 1.5 and the stability of the displacement is 4.46 more than 1.5, the stability of the decrease is 22.34 tons / m2 > the carrying capacity of the soil is 12.2 tons / m2 (not okay) then the pile is needed to hold vertical style.Keywords: Bridge, Mayerhof, Pile

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