A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Studies on Load-Settlement Behavior of Cohesionless Soil Using Bamboo Grid
Ground improvement is a must in present world where there is lack of land available for construction. Soil improvement can be done in various ways to increase the strength of soil. Soil reinforcement is one of the techniques available to enhance the quality of soil. Various tested techniques are available for this purpose. In this study, bamboo grids have been applied in horizontal layers like geo grids in a test tank to study the increase in bearing capacity under vertical loading. Easy availability, low cost, strong tensile strength, and environment friendly behavior are some of the reasons for selecting it. The study is conducted on a steel test tank with locally available Zone III sand. Load tests are conducted on a model circular footing with 0.18 m diameter (B) resting on sand with and without bamboo grids to compare the improvement factor for bearing capacity. The reinforcements are inserted in bed of sand with varying depths (B, 0.25B, 0.5B, B 1.5B) and in single and multiple layers. Depth to diameter ratio, number of grid layers, and shape of the aperture plays an important role in performance of model circular footing. At first, model circular footing without bamboo grid is tested, and experimental results are compared with various analytical equations available viz Terzaghi (1943), Meyerhof (1963), Hansen (1957, 1970), Vesic (1973), IS: 6403-1981 code. The proximity in the experimental results with Terzaghi establishes the reliability of the test setup. The models are tried with PLAXIS 2D® also.
Experimental Studies on Load-Settlement Behavior of Cohesionless Soil Using Bamboo Grid
Ground improvement is a must in present world where there is lack of land available for construction. Soil improvement can be done in various ways to increase the strength of soil. Soil reinforcement is one of the techniques available to enhance the quality of soil. Various tested techniques are available for this purpose. In this study, bamboo grids have been applied in horizontal layers like geo grids in a test tank to study the increase in bearing capacity under vertical loading. Easy availability, low cost, strong tensile strength, and environment friendly behavior are some of the reasons for selecting it. The study is conducted on a steel test tank with locally available Zone III sand. Load tests are conducted on a model circular footing with 0.18 m diameter (B) resting on sand with and without bamboo grids to compare the improvement factor for bearing capacity. The reinforcements are inserted in bed of sand with varying depths (B, 0.25B, 0.5B, B 1.5B) and in single and multiple layers. Depth to diameter ratio, number of grid layers, and shape of the aperture plays an important role in performance of model circular footing. At first, model circular footing without bamboo grid is tested, and experimental results are compared with various analytical equations available viz Terzaghi (1943), Meyerhof (1963), Hansen (1957, 1970), Vesic (1973), IS: 6403-1981 code. The proximity in the experimental results with Terzaghi establishes the reliability of the test setup. The models are tried with PLAXIS 2D® also.
Experimental Studies on Load-Settlement Behavior of Cohesionless Soil Using Bamboo Grid
Lecture Notes in Civil Engineering
Satyanarayana Reddy, C. N. V. (editor) / Muthukkumaran, K. (editor) / Satyam, Neelima (editor) / Vaidya, Ravikiran (editor) / Das, Bipasha (author) / Chetia, Nayanmoni (author)
2021-09-27
13 pages
Article/Chapter (Book)
Electronic Resource
English
Experimental Study of Load and Settlement Behavior of Bamboo Grid Reinforced Sand
| British Library Conference Proceedings | 2019