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Numerical Simulation of the Bearing Capacity for Geocell Reinforced Gravel Based on Discrete-Continuous Coupling Calculation
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[1]Wang Hainian,Zhang Ran,Zhou Jun,et al.Numerical Simulation of the Bearing Capacity for Geocell Reinforced Gravel Based on Discrete-Continuous Coupling Calculation[J].Journal of Zhengzhou University (Engineering Science),2016,37(01):49-53.[doi:10.3969/j.issn.1671-6833.201410012]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 37 Number of periods: 2016 01 Page number: 49-53 Column: Public date: 2016-02-28
Title:
Numerical Simulation of the Bearing Capacity for Geocell Reinforced Gravel Based on Discrete-Continuous Coupling Calculation
Author(s):
Wang Hainian1; Zhang Ran2; Zhou Jun2; Liu Yu2; You Zhanping3
1. Key Laboratory of Road Structure and Material Transportation Industry, Chang’an University, Xi’an, Shaanxi 710064; 2. China Communications Construction Co., Ltd., Xi’an 710075, Shaanxi; 3. School of Civil Engineering and Environment, Michigan Technological University, Houghton, USA 49931
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DOI:
10.3969/j.issn.1671-6833.201410012
Abstract:
The base material of geocell reinforced gravel has strong ability to adapt to the deformation of the subgrade, but its bearing capacity and deformation mechanism not clear. The discrete-continuous coupling cal-culation was used to calculate the mechanical properties of different geocell reinforced gravel composite struc-ture and the composite structure in which the geocell was not set up in the process of loading. The geocells in-clude 9 kinds whose height is 100mm, 150mm and 200mm,whose welding torch is 400 mm, 600 mm and 800 mm. Then the elasticity modulus of the bearing layer is analyzed. The results indicated that the bearing capac-ity of the subgrade got an obvious improvement after gravel was enforced by the geocell. Elasticity modulus of structure layer increased by 38. 61%. When the height of the geocell is fixed, with the decreasing of the geo-cell welding torch, the loading capacity of geocell structural layer is increasing. When the geocell welding torch is fixed, with the increasing of the geocell height, the loading capacity of geocell structural layer is accordingly increasing. The geocell model of 400 -200 mm, which big vertical displacement accounted for 17. 36% of whole bearing layer area, evenly distributed, and the best reinforced.
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