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Thiopave改性沥青路面力学响应研究 被引量:4

Research on Mechanical Response of Thiopave Modified Bituminous Pavements
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摘要 基于Thiopave改性沥青路面良好的高低温稳定性,采用有限元软件对典型半刚性基层沥青面层进行计算,得到不同沥青面层层底力学响应,并对计算结果进行对比研究,得到的主要结论如下:Thiopave沥青路面层底弯拉应力显著大于SBS沥青及基质沥青路面,路表轮隙中心处弯沉值小于SBS沥青及基质沥青路面;随着SEAM掺量的增加,Thiopave沥青路面层底弯拉应力逐渐增大,路表轮隙中心处弯沉值逐渐减小;随着沥青面层厚度的增加,沥青面层底部主拉应力减小,路表轮隙中心处弯沉值也呈现减小趋势. Based on the excellent high and low temperature stability of Thiopave bituminous pavements, the finite element software was adopted on the computation of the typical semirigid basic bituminous pavement, as a result, different bituminous pavement mechanical responses were obtained, then the contrast research was done and the main conclusion went as follows: the bottom curved tensile stress of the Thiopave asphalt pavement is obviously bigger than the SBS asphalt and common bituminous pavement; the road deflection value is smaller than the SBS asphalt and the matrix bituminous pavement; the Thiopave asphalt pavement layer bottom curved tensile stress increases and the road deflection value decreases gradually along with the increase of the SEAM quantity; the road deflection value and bottom curved tensile stress of pavements reduce gradually along with the increase of the bituminous pavement thickness.
出处 《青岛理工大学学报》 CAS 2011年第6期26-29,共4页 Journal of Qingdao University of Technology
关键词 硫磺改性 沥青路面 路用性能 力学响应 SEAM bituminous pavement road performance mechanical response
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