关于锚头丝沥青混凝土路面的抗裂技术探究

摘要

this paper puts forward a way of about anchor head reinforced asphalt pavement structure,via the finite element software to simulate the anchor head under temperature stress field,and both the reflective crack of asphalt pavement strength calculation,from the aspects of material selection and the reinforcement of the expansion of the transverse cracks and reflect cracks of asphalt concrete are studied.Above research results show that the asphalt concrete paving reinforced layer anchor head wire process way,can reduce based on the generation of transverse cracks caused by temperature stress and extension,effectively prevent the pavement road Table transverse cracks caused by the low temperature cracking problem;Take in semi-rigid base overlay on reinforcement of anchor head silk way of technology,can improve the crack caused by stress concentration phenomenon,effectively improve the stress state of the surface at the bottom of the slowing down the cracks of asphalt pavement layer under the reflection and extension.%提出了一种关于锚头加筋沥青路面结构,通过有限元软件模拟锚头丝沥青路面在温度应力场和既有反射裂缝下的强度计算,从材料选取和加筋方面对沥青混凝土路面横向裂缝和反射裂缝的扩展进行了研究.研究结果表明:采取沥青混凝土上面层加铺加筋锚头丝的工艺方式,能降低基于温度应力引起的横向裂缝的产生和扩展,有效防止路面低温开裂引起的路表横向裂缝问题;采取在半刚性基层加铺加筋锚头丝的工艺方式,能改善裂缝而产生的应力集中现象,有效改善面层底部的应力状态,延缓沥青路面下面层反射裂缝的产生和扩展.