Nonlinear behaviour of sand reinforced with denti-inclusions
In this paper, a new concept of soil reinforced with horizontal-vertical (H-V) reinforcing elements is proposed. Compared with conventional horizontally reinforced soils, the proposed one also has some vertical reinforcing elements placed on horizontal ones at intervals. A fundamental difference between the H-V reinforcing elements and other forms inclusions as well as fiber-reinforced soil is that in the presented H-V reinforced soil, besides friction between horizontal reinforcements and soil, passive resistance in the soil enclosed within the H-V reinforcing elements will occur, which will be against shearing and increase the strength and stability of the reinforced soil. A series of triaxial compression tests were carried out on sand reinforced with H-V reinforcements in radial symmetry, in which the galvanized iron sheet was used as reinforcements. The behavior of sand reinforced with different H-V reinforcing configurations is discussed in terms of stress-strain relationship and shear strength of the soil and a comparison is made between shear strength of the sand reinforced with horizontal reinforcement and with H-V reinforcing elements. Different configurations of H-V reinforcing elements are also discussed and compared. The experimental results and analyses indicate that H-V reinforcement gives an apparent cohesion to the sand, and increases the angle of internal friction significantly.
S. L. Zhang M. X. Zhang A. A. Javadi
Department of Civil Engineering, Shanghai University, Shanghai 200072, China School of Engineering and Computer Science, University of Exeter, Exeter, Devon EX4 4QF, UK
国际会议
The 5th International Conference on Nonlinear Mechanics(第五届国际非线性力学会议)
上海
英文
890-895
2007-06-11（万方平台首次上网日期，不代表论文的发表时间）