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Mechanic analysis of soil under moving load(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年05期
Page:
35-40
Research Field:
Publishing date:
2009-10-20

Info

Title:
Mechanic analysis of soil under moving load
Author(s):
ZHENG Biyu;  ZHU Dongfang;  YIN Guansheng
School of Science, Changan University, Xian 710064, Shaanxi, China
Keywords:
road engineering;  constant load;  harmonic load;  finite element method;  vehicleterra mechanics
PACS:
U416.212；TB12
DOI:
-
Abstract:
The three dimensional finite element model is established using the software of ANSYS and the stress distribution of the soil in the road structure is studied. The interaction force between the vehicle and the smoothness pavement and that between the vehicle and the roughness pavement are simulated by a movable constant load and a movable harmonic load respectively. The influences of the magnitude and speed of the load on the distribution of stress, strain and displacement of the road structure are analyzed. The numerical results show that the maximum Von Mises stress, the maximum compressive stress and displacement increase linearly with the increment of the magnitude of the load but decrease quadratically with the increment of the speed of the load. With the same magnitude and speed of the load, the maximum Von Mises stress and vertical displacement under movable constant load is larger than those of movable harmonic load, while the maximum compressive stress under movable constant load is smaller than that of the movable harmonic load. 10 tabs, 19 figs, 8 refs.

References:

［1］陈小念．沥青路面力学响应的三维有限元分析［D］．兰州：兰州理工大学，2006．
[2]丁凯,金波．移动荷载作用下地基动力分析的有限元方法［J］．力学季刊，2006,27(4):648654． DING Kai,JIN Bo.The finite element method in dynamic analysis of foundation under moving loads［J］.Chinese Quarterly of Mechanics，2006,27(4):648654.
[3]单景松,黄晓明．移动荷载下弹性层状体系响应分析［C］//2005全国博士生学术论坛编委会.交通运输工程学科论文集:下册.北京:中国铁道出版社,2005：13291333．
[4]侯芸,郭忠印,田波,等．动荷作用下沥青路面结构的变形响应分析［J］．中国公路学报，2002，15（3）：610． HOU Yun,GUO Zhongyin,TIAN Bo,et al.Dynamic deflection response of layered pavement structure subjected to dynamic load［J］ .China Journal of Highway and Transport，2002，15（3）：610．
[5]陈静,刘大维,霍炜,等.路面对车辆动载响应研究［J］.农业机械学报，2002,33(2):1114. CHEN Jing,LIU Dawei,HUO Wei,et al.Response of pavement to vehicle dynamic load［J］.Transactions of the Chinese Society of Agricultural Machinery,2002,33(2):1114.
[6]卜鑫.交通荷载下软土路基的动力响应分析［D］.杭州：浙江大学，2006.
[7]祝海燕,王选仓,曹宝贵.弹性地基上复合路面的受力分析［J］.长安大学学报：自然科学版，2008,28(3):2529. ZHU Haiyan,WANG Xuancang,CAO Baogui.Mechanic analysis of composite pavement on elastic foundation［J］.Journal of Changan University：Natural Science Edition,2008,28(3):2529.
[8]罗辉，朱宏平，郝行舟.沥青路面动态响应数值分析［J］.交通运输工程学报，2007，7（4）：4447,53. LUO Hui,ZHU Hongping,HAO Xingzhou.Numerical analysis of dynamic response on asphalt pavement［J］.Journal of Traffic and Transportation Engineering,2007,7(4):4447,53.

Memo

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Last Update: 2009-10-20