半刚性基层防裂性能分析

沥青路面的应用越来越广泛，道路基层也大部分采用半刚性基层，而基层开裂问题一直都是影响道路使用寿命的关键之所在。文章一方面从理论角度来分析和了解道路各结构层产生裂缝原因、影响因素和评价方法，另一方面从实验角度来分析和研究结构层抗裂性能，并提出的基于劈裂模量的收缩应变能抗裂性评价指标体系，从能量的观点把应力和应变结合起来能有效地评价半刚性基层材料抗裂性。

Semi-rigid Basic Uit Against Crack Performance Analysis

Bituminous pavement＇s application is getting more and more widespread, the path basic unit also majorily of uses the semi-rigid basic unit, but the basic unit dehiscence question has been affects the road usage life the key to be. The article analyzes and the understanding path various structures level al the same time from the theory angle has the crack reason, the influencing factor and lhe assessment method, on the other hand analyzes and the research structure level crack resistance energy front the experiment angle, and proposes based on the cleavage module contraction strain energy crack resistance evaluating indicator system, unifies from the energy viewpoint the stress and the strain can appraise effectively the senti-rigid basic unit material crack resistance.