土工合成材料防治反射裂缝效果的数值模拟  

Numerical simulation on the effect of geosynthetics preventing reflective cracks

作　　者：郑大为[1] 赵闪[1] 韩慧娟[1] 

机构地区：[1]辽宁工程技术大学土木与交通学院,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2016年第7期731-735,共5页Journal of Liaoning Technical University (Natural Science)

摘　　要：为研究土工合成材料是否可以有效地抑制路面反射裂缝的产生与发展的问题,采用有限元数值模拟方法,运用Ansys软件,进行土工合成材料防治路面反射裂缝的数值模拟分析,分别对比土工合成材料和无土工合成材料下不同沥青加铺层厚度时的沥青层低应力、弯沉值和强度因子的变化曲线.研究结果表明:土工合成材料能有效的减轻沥青层底应力、降低弯沉,通过降低应力和弯沉对沥青加铺层起到了一定防治反射裂缝的效果,同时可以提高工程质量减小综合造价.In order to study the problem whether geosynthetic can inhibit the generation and development of pavement reflection crack effectively.This paper carried out numerical simulation analysis on the prevention of the pavement reflection cracking by using software ANSYS. The results of the finite analysis show that the geosynthetics can effectively reduce the bottom stress of asphalt layer, reduce deflection, which made contribution to prevention of reflective cracking of asphalt. This study has a certain significance and reference value for the future application of geosyntheti, and plays a certain role on the future development of geosynthetics. The application of geosynthetic not only improves the quality of engineering, but also decreases greatly the engineering price.

关 键 词：土工合成材料 有限元 层底应力 弯沉 反射裂缝 

分 类 号：U414[交通运输工程—道路与铁道工程]