关键词: 道路工程, 冷再生路面, 力学响应, 影响因素

Abstract: According to the cold recycled pavement structure design of Guanxi line in Foshan，BISAR3． 0 is chosen as the calculation software to study the mechanical response of the equivalent rebounding modulus of the original pavement，the thickness of surface pavement layer，the thickness of cold recycled base and cold recycled base modulus on cold recycled pavement structure performance． Therefore，references for the cold recycled pavement structure design are provided． The analysis shows that the equivalent rebounding modulus of the original pavement directly determines the service performance of the road after the reconstruction; the thicker surface layer，the anti-fatigue properties of base，anti-rutting performance of pavement enhance markedly，and the deflection on the surface reduce; as cold recycled base modulus increases，the bottom of base layers is easy to crack; but when the base modulus is too small，the bottom of surface layers is easy to produce bending fatigue，the pavement is also prone to rutting; so the cold recycled base thickness is of no less than 15cm．

Key words: road engineering, cold recycled pavement, mechanical response, influence factors