CAJ | 학술논문

为了解沥青路面的模量衰变特性，基于行车荷载模拟系统(MLS66)，在实际路面上进行了足尺加速加载试验；并使用便携式路面分析仪(PSPA)，对试验区域的地震波模量进行了测量。试验结果表明：沥青路面的地震波模量与荷载作用次数的关系曲线呈现3个阶段(①模量-荷载作用次数呈线性关系；②出现加速衰减；③趋于稳定)。荷载的间歇作用有利于地震波模量的恢复，间歇时间越长，模量恢复百分比越高，但恢复速率降低。模量衰减不限于加速加载区域，对加速加载方向前、后的影响要大于两侧的。得出了沥青路面模量的衰变规律。在常温状态下，地震波模量与路面性能在荷载作用下具有一致性。
위료해력청로면적모량쇠변특성，기우행차하재모의계통(MLS66)，재실제로면상진행료족척가속가재시험；병사용편휴식로면분석의(PSPA)，대시험구역적지진파모량진행료측량。시험결과표명：력청로면적지진파모량여하재작용차수적관계곡선정현3개계단(①모량-하재작용차수정선성관계；②출현가속쇠감；③추우은정)。하재적간헐작용유리우지진파모량적회복，간헐시간월장，모량회복백분비월고，단회복속솔강저。모량쇠감불한우가속가재구역，대가속가재방향전、후적영향요대우량측적。득출료력청로면모량적쇠변규률。재상온상태하，지진파모량여로면성능재하재작용하구유일치성。
In order to study the modulus change,mobile load simulator system(MLS6 6 ) has been used to conduct full scale accelerated performance test and portable seismic pavement analyzer(PSPA)to test seismic modulus of actual asphalt pavement.The re-sults show that three stages exist in changes of seismic modulus of asphalt pavement un-der loads.Firstly,the changes show liner relationship.Secondly,the decay rate of modu-lus becomes faster.Thirdly,the decay rate becomes close to zero.The intermittent time of loads has great effects on seismic modulus,the longer the intermittent,the greater the degree of the recovery of seismic modulus.But the recovery rate becomes lower.The at-tenuation area exceeds the region of the accelerated loading test,and the changes of front and rear is greater than sides.The decay regulation of seismic modulus of asphalt pave-ment is obtained,and the consistency can be found between seismic modulus and pave-ment performance.