scholarly journals Dynamic Analysis of Machine Foundation with and without Geosynthetic Reinforced Soil Beds

2021 ◽  
pp. 969-976
Author(s):  
Bhagyeshbhai Parmar ◽  
A. K. Verma ◽  
V. A. Arekar
Keyword(s):  
Elastic Recovery ◽  
Experimental Studies ◽  
Reinforced Soil ◽  
Load Test ◽  
Laboratory Model ◽  
Dynamic Parameters ◽  
Uniform Compression ◽  
Plate Load Test ◽  
Machine Foundation ◽  
Similar Density

Most of the machine foundations are located in the regions with poorly graded soil including loose sand. Hence, the experimental studies are undertaken to evaluate the dynamic parameters of geosynthetics using cyclic PLT. This paper presents the results of the 10 m2 area of the model cyclic plate load test conducted on geosynthetics reinforced soil beds with similar density, supporting square footing, the results of cyclic PLT from the laboratory-model tests on square footings resting on a sand bed. The various intensity of cyclic load (loading-unloading) applying on the footing and then the elastic recovery of the footing alike to each intensity of loading obtains during the tests to determine the coefficient of elastic uniform compression (Cu) of sand. Results showes that the provision of geosynthetics like geogrid and jute the value of Cu decreases due to elastic recovery increases as compared to unreinforced soil bed, by 06% to 94% and natural frequency 03% to 76% . Introduction of planer geogrid at the base of the geosynthetic matress not only enhance the load carrying capacity but also increasing the elastic recovery to making them more elastic and prevents footing to failure due to vibration. In addition to the experiments also analyses various dynamic parameters of the machine foundation using cyclic PLT on the geosynthetics

Plate Load Test on Fiber-Reinforced Soil

2003 ◽  
Vol 129 (10) ◽  
pp. 951-955 ◽  
Author(s):  
Nilo C. Consoli ◽  
Michéle D. T. Casagrande ◽  
Pedro D. M. Prietto ◽  
Anto⁁nio Thomé
Keyword(s):  
Reinforced Soil ◽  
Load Test ◽  
Fiber Reinforced ◽  
Plate Load Test ◽  
Fiber Reinforced Soil

scholarly journals A Short Review on the Dynamic Characteristics of Geogrid-Reinforced Soil Retaining Walls under Cyclic Loading

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Min Geng
Keyword(s):  
Dynamic Characteristics ◽  
High Speed ◽  
Experimental Studies ◽  
Engineering Application ◽  
Retaining Walls ◽  
Short Review ◽  
Internal Force ◽  
Reinforced Soil ◽  
Research Progress ◽  
Laboratory Model

The internal force and the form of reinforced soil wall used in high-speed railway change due to the static loads of self-gravity and rail system and dynamic load of train travelling. As a kind of flexible retaining structure, the study of the dynamic characteristics of reinforced retaining walls is of great significance for its engineering application and structural analysis. In this article, recent advances in using various research methods on the dynamic characteristics of reinforced retaining walls are reviewed. Through a series of experimental studies and numerical analysis, the research progress of dynamic characteristics of reinforced retaining walls is summarized. The advantages, disadvantages, and application of various test methods are analyzed. Finally, laboratory model tests are expounded based on previous research achievements, and prospects are proposed on the development of dynamic characteristics of reinforced retaining walls.

scholarly journals Prediction of Effects of Geogrid Reinforced Granular Fill on the Behaviour of Static Liquefaction

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
A. Hemalatha ◽  
N. Mahendran ◽  
G. Ganesh Prabhu
Keyword(s):  
Bearing Capacity ◽  
Load Test ◽  
Test Results ◽  
Plate Load Test ◽  
Large Size ◽  
Static Liquefaction ◽  
Granular Fill ◽  
Size Dimension ◽  
Subgrade Modulus ◽  
Different Thickness

The experimental investigation on the effects of granular fill and geogrid reinforced granular fill on the behaviour of the static liquefaction potential of the subsoil is reported in this study. A series of plate load test were carried out with different thickness of the granular fill, number of geogrid layers, and size/dimension of the footing. The test results were presented in terms of bearing capacity and subgrade modulus for the settlement ofδ10,δ15, andδ20. The experimental results revealed that the introduction of granular fill significantly increases the bearing capacity and effectively control the settlement behaviour of the footing. The introduction of geogrid in granular fill enhanced the Percentage of Control in Settlement and Bearing Capacity Ratio by a maximum of 328.54% and 203.41%, respectively. The introduction of geogrid in granular fill interrupts the failure zone of the granular fill and enhances the subgrade modulus of the footing by a maximum of 255.55%; in addition subgrade modulus of the footing was increased with an increase in the number of geogrid layers. Based on the test results it is suggested that the footing with large size has beneficial improvement on the reinforced granular fill.

Evaluation of soil bearing capacity by plate load test

2017 ◽  
pp. 767-772
Author(s):  
Qasim Al-Obaidi ◽  
Ali Al-Shamoosi ◽  
Azad Ahmed
Keyword(s):  
Bearing Capacity ◽  
Load Test ◽  
Plate Load Test

scholarly journals Ultimate Bearing Capacity of Stabilized Soil in Pavements

2020 ◽  
Vol 9 (5) ◽  
pp. 2349-2351
Keyword(s):  
Fly Ash ◽  
Bearing Capacity ◽  
Coal Ash ◽  
Ultimate Bearing Capacity ◽  
Load Test ◽  
Base Layer ◽  
Plate Load Test ◽  
Rubber Powder ◽  
Stone Dust ◽  
Stabilized Soil

This paper discusses the Ultimate Bearing Capacity of a stabilized soil by using the fly ash, stone dust and rubber powder for design of a pavement. This paper will help in utilization of locally available waste materials to reuse in the subbase and subgrade layers of pavement. Rubber powder is a waste byproduct generated from the recycling of tires, and is not so easy for degradable, and hence leads to release of harmful gases when it tends to burn. Stone dust is a locally available waste generated product from quarries. The generation of stone dust is increasing day to day in large quantity. The huge quantity of stone dust storage amount will affect the quality of soil. Fly ash is waste combusted coal ash powder generated from the steamers of coal boilers with the burning of fuel gases together. In the sub grade layer the soil is mixed in different proportions with stone dust for hard foundation. In the sub base layer the soil is stabilized with the combination of rubber powder and fly ash. When the rubber powder and fly ash, mixed with water for compaction generates a bond between the soil particles to settle the air fields. In this paper various percentages of rubber powder, stone dust and fly ash with different samples for pavement is layered, and after that plate load test is conducted upon it.

scholarly journals Pavement Subgrade Stabilization with Lime and Cellular Confinement System

2018 ◽  
Vol 13 (2) ◽  
pp. 87-93
Author(s):  
Muhammet Vefa Akpinar ◽  
Erhan Burak Pancar ◽  
Eren Şengül ◽  
Hakan Aslan
Keyword(s):  
Bearing Capacity ◽  
Large Scale ◽  
Clayey Soil ◽  
Dry Weight ◽  
Hydrated Lime ◽  
Load Test ◽  
Lime Stabilization ◽  
Plate Load Test ◽  
Reaction Coefficient ◽  
Geocell Reinforcement

In this study effectiveness of lime stabilization and geocell reinforcement techniques of roads was investigated for low bearing capacity subgrades. For this purpose, a large-scale plate load test was designed and used. Clayey soil with high moisture content was reinforced with different percentages of hydrated lime (5%, 10%, 15% dry weight of the soil). The deflection and stress results indicated that lime stabilization or geocell reinforcement alone did not significantly increase subgrade reaction coefficient and bearing capacity values. Promising results were obtained on stabilization of weak subgrade when both techniques were used together. It was determined that cellular reinforcement increased the reaction modulus coefficient value and bearing capacity of the subgrade soil by more than 15% compared to the lime stabilization.

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