Papers by Keyword: Pile

Abstract: The work refers to the modern method of stabilizing unstable, water-saturated creeping slopes, with the combination of bulk piles and gabions. The application of the method makes it possible to ensure the stability of the slope by means of bulk piles, passing through weak soils, building semi-massive gabion walls on the piles with a stepped front edge. Bulk piles and gabions are used in modern construction for strengthening the slopes of river banks, in the preparation of protective structures to stand the rockfall, avalanche floods, in the construction of bridges, hydraulic and other facilities. The novelty of the proposed method is the stabilization and watering of the slopes organized without the construction of reinforced concrete retaining walls and land-based systems. It provides strength in depth and minimizing hydrostatic pressure.

Abstract: In oil distribution process, especially in archipelago countries like Indonesia, jetty is anessential tool in loading and unloading oil from and to tanker. The main problem in jetty structurewith steel piling is its corrosion resistance. The deterioration of the jetty structure strength was causedby the piling depletion caused by corrosion. In this study, calculation and mechanical strength testingfor Glass Fiber Reinforced Polymer (GFRP) were conducted. The study was then applied toPertamina Tanjung Uban jetty to strengthen the piling, and increase in compression strength of up to63.38% was observed. The increase of compression strength from the application of GFRP however,doesn’t have a linear strengthening effect when applied for other applications.

Abstract: Current seismic design practice assumes the base of the building to be fixed and does not consider the flexibility of foundation and soil. This assumption is realistic only when the structure is founded on solid rock or when the relative stiffness of the foundation soil compared to the superstructure is high. Whereas, in reality due to natural ability of soil to deform, supporting soil medium modifies the response of the structure during earthquake to some extent. In this work the effect of soil structure interaction on seismic response of building resting on different types of foundation was studied. Present work aims to study the effect of soil structure interaction on seismic response of building resting on fixed base, pile foundation, raft foundation and combined pile-raft foundation. G+9 RCC building is analyzed for earthquake loads considered in zone III by response spectrum method and storey displacement and base shear force of building by considering and without considering SSI effect is found out by using MIDAS GEN software.

Abstract: This paper deals with the modeling of the load test of vertical resistance of reinforced concrete piles. The pile is a part of a group of piles with reinforced concrete heads. The head is pressed with steel arches of a bridge on highway Jablonov - Studenec. Pile model is created in ANSYS with several models of foundation having properties found out from geotechnical survey. Finally some crucial results obtained from computer models are presented and compared with these obtained from experiment.

Abstract: The paper deals with design of model and verification of a pile loaded by pressure. The pile is embedded in the layered ground mass. Its model has been created using the ANSYS software system. The obtained results have been compared with results of the pile loading test performed during the construction of a multifunctional building. In the conclusion the results have been presented in graphs.

Abstract: This paper will describe complete investigations of the analysis anchor strength for mooring of a floating breakwater in Senoro Field. The terminal has berthing facilities located in a water depth about 30 meters, with the wave height of 2.7 meters that made difficult for tanker to berth properly. The requirement for berthing ships must have minimum wave heights of 0.7 meters to 1.5 meters as a requirement [1]. Considering the previously mentioned, a floating breakwater has suggested for reducing wave height. The purpose of this final project is to determine the tension mooring line and anchor pile strength to withstand all possible working loads. Response amplitude operator (RAO) of floating breakwater is used to find the structure characteristic as a response due to wave action. Based on the study, wire rope mooring was chosen due to its safety factor passed API RP 2SK standard, such as the biggest tension is 1389,68 kN on line 1 and the smallest is 1157,72 kN on line 8. Calculate anchor pile strength with three types: spun piles, spun square piles, and triangular piles. Anchor pile could be installed depending on three main factors, uplift capacity, bearing capacity and pile in compression. Based on the analysis, uplift capacity result for pile F is 1960.1 kN, while uplift load result is 1958.47 kN, and pile in compression result is 4155 kN while allowable compression result is 5532 kN. For pile G, uplift capacity result is 1960.7 kN, while uplift load result is 1958.47 kN, and pile in compression result is 4599 kN, while allowable compression result is 7189 kN.

Abstract: Now the most pressing and to end unresolved question is the determination of the design parameters for the base in the conditions of formation of karst deformations. Foundation calculations made on the basis of forecasting karst manifestations sizes and the likelihood of their formation at the base of the designed construction. In paper presented the grillage calculation scheme. We calculated the grillage with four bays for four cases: excluding karst collapse, taking into account the collapse of a single support, taking into account the collapse under two not adjacent supports and taking into account the collapse at two adjacent supports. In paper presents the diagrams of bending moments and shear forces.

Abstract: Cyclic loadings would cause the failure of pile foundation which was leading to many studies in the past. In this study, 6 centrifuge models were conducted in the acceleration field of 80 g. In order to simulate the off-shore wind turbine foundation embedded in soft deposit and subjected to lateral forces such as strong wind and waves. The pile was embedded in the dry or saturated soil deposit, and the different elevation of lateral force was applied to the pile foundation. From the tests, it was found 1% of pile head displacement suggested in the design guide is conservative.

Abstract: This article presents the accuracy of foundation calculation of slab-use SCAD model using finite rigidity linkages. Two design schemes contain foundation on pile is considered in plane elastic problem. The analysis of obtained stress values in the foundation allows to make a conclusion on the calculation accuracy in pile models using finite rigidity linkages and the feasibility of such a simplification of the calculation of pile foundations.

Abstract: Opportunities of factories, transport companies and piling driving machines does not allow to produce longer piles when it is necessary. Currently this problem could be solved by joining parts of piles. A wide range of pile joints are known therefore it is a problem for building companies to choose which one is more relevant. In this connection there is a need to identify what joint is the most optimal. In this work main types of joints are compared in accordance with up-to-date requirements to building constructions and technologies. On the basis of these comparisons it is concluded that the most effective is pin joint type