夹层对PCC-AC复合式路面层间剪应力的影响

Effect of interlayer on shear stress between layers of PCC-AC composite pavement

针对PCC-AC复合式路面层间易产生脱离和滑移的问题,分析了夹层的设置对于PCC-AC复合式路面层间剪应力的影响,通过改变夹层的厚度和回弹模量来研究其变化规律,得出了夹层底剪应力的回归公式,提出了降低PCC-AC复合式路面层间剪应力的有效方法,即在不改变AC层厚度的情况下,设置适当厚度的低模量应力吸收层.

Aiming to the common problem of disengagement and slippage between layers of PCC-AC composite pavement,the effect of interlayer on shear stress between layers of PCCAC composite pavement is analyzed, various rules are studied by changing thickness and elastic modulus of interlayer ,regression formula of shear stress of interlayer is obtained ,an effective measure on reducing shear stress between layers of PCC-AC composite pavement is put forward, when the thickness of AC layer is invariant, stress absorbing layer with low modulus and proper thickness is advantageous to reduce shear stress.