A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Numerical Study on Enhancing the Bearing Capacity of Shallow Foundation Using Geosynthetics
Geosynthetic materials, such as geogrid or geotextile, are often used to compose a reinforced earth to improve the engineering properties of weak soils. These materials provide extra tensile resistance by interaction with surrounding soils. The geosynthetic materials have long been used to reinforce earth slopes, but relatively little study have been performed on their usage for the reinforcement of shallow foundations. To provide practice engineers with parameters to optimize their design, the effectiveness of reinforced shallow foundation was studied numerically by using a commercial finite difference program - Fast Lagrangian Analysis of Continua (FLAC). The bearing capacity of an unreinforced strip foundation was simulated and compared with Terzaghi's theoretical solution to verify the correctness of the numerical model. The effects of various parameters, such as the burial depth, length of the reinforcement material, number of reinforcement layers, arrangement of reinforcement layers, and the strength of soil on the bearing capacity were then studied. Results of this study verified that the reinforced shallow foundation can provide higher bearing capacity, especially for weak soils. It was found that a buried depth of 0.4 times the width of foundation yields the optimum bearing capacity increase. The most economical reinforcement length is about two to three times the width of the foundation. Adding an additional layer of reinforcement was found to further increase the bearing capacity.
Numerical Study on Enhancing the Bearing Capacity of Shallow Foundation Using Geosynthetics
Geosynthetic materials, such as geogrid or geotextile, are often used to compose a reinforced earth to improve the engineering properties of weak soils. These materials provide extra tensile resistance by interaction with surrounding soils. The geosynthetic materials have long been used to reinforce earth slopes, but relatively little study have been performed on their usage for the reinforcement of shallow foundations. To provide practice engineers with parameters to optimize their design, the effectiveness of reinforced shallow foundation was studied numerically by using a commercial finite difference program - Fast Lagrangian Analysis of Continua (FLAC). The bearing capacity of an unreinforced strip foundation was simulated and compared with Terzaghi's theoretical solution to verify the correctness of the numerical model. The effects of various parameters, such as the burial depth, length of the reinforcement material, number of reinforcement layers, arrangement of reinforcement layers, and the strength of soil on the bearing capacity were then studied. Results of this study verified that the reinforced shallow foundation can provide higher bearing capacity, especially for weak soils. It was found that a buried depth of 0.4 times the width of foundation yields the optimum bearing capacity increase. The most economical reinforcement length is about two to three times the width of the foundation. Adding an additional layer of reinforcement was found to further increase the bearing capacity.
Numerical Study on Enhancing the Bearing Capacity of Shallow Foundation Using Geosynthetics
Lai, Jiunnren (author) / Chung, Shao-Yi (author) / Yang, Bo-Huan (author) / Wu, Shengmin (author) / Pan, Chi-Ling (author)
Geo-Hubei 2014 International Conference on Sustainable Civil Infrastructure ; 2014 ; Yichang, Hubei, China
2014-06-23
Conference paper
Electronic Resource
English
Numerical Study on Enhancing the Bearing Capacity of Shallow Foundation Using Geosynthetics
| British Library Conference Proceedings | 2014
Bearing capacity analysis of reinforced foundation ground by geosynthetics
| British Library Conference Proceedings
EFFECT OF GEOSYNTHETICS ON BEARING CAPACITY OF FOUNDATION (An Experimental Study)
| British Library Conference Proceedings | 2000
Effective use of geosynthetics to increase bearing capacity of shallow foundations
| British Library Online Contents | 2017
Effective use of geosynthetics to increase bearing capacity of shallow foundations
| Online Contents | 2017