武汉理工大学学报(交通科学与工程版)
武漢理工大學學報(交通科學與工程版)
무한리공대학학보(교통과학여공정판)
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY(TRANSPORTATION SCIENCE & ENGINEERING)
2014年
1期
176-180
,共5页
苏婷婷%呙润华%林俊舟%李红学%乔小兵%刘剑%赵恒
囌婷婷%咼潤華%林俊舟%李紅學%喬小兵%劉劍%趙恆
소정정%괘윤화%림준주%리홍학%교소병%류검%조항
道路工程%超薄沥青%路面结构%早期损害%裂缝%车辙
道路工程%超薄瀝青%路麵結構%早期損害%裂縫%車轍
도로공정%초박력청%로면결구%조기손해%렬봉%차철
road engineering%ultra-thin asphalt%pavement structure%early stage disease%cracking%rutting
根据非洲刚果(布)国家一号公路实地实验数据,采用M EPDG软件进行建模,在实际荷载水平及路面材料性质下,分析超薄沥青路面早期病害的原因,变化各层材料弹性模量和厚度,对车辙深度和疲劳裂缝等指标对结构强度和早期损害的影响,取95%保证率下符合可靠性要求的结果。进一步分析路面结构对高交通增长率的抵抗能力强弱,提出针对降低超薄沥青路面早期损害的措施。
根據非洲剛果(佈)國傢一號公路實地實驗數據,採用M EPDG軟件進行建模,在實際荷載水平及路麵材料性質下,分析超薄瀝青路麵早期病害的原因,變化各層材料彈性模量和厚度,對車轍深度和疲勞裂縫等指標對結構彊度和早期損害的影響,取95%保證率下符閤可靠性要求的結果。進一步分析路麵結構對高交通增長率的牴抗能力彊弱,提齣針對降低超薄瀝青路麵早期損害的措施。
근거비주강과(포)국가일호공로실지실험수거,채용M EPDG연건진행건모,재실제하재수평급로면재료성질하,분석초박력청로면조기병해적원인,변화각층재료탄성모량화후도,대차철심도화피로렬봉등지표대결구강도화조기손해적영향,취95%보증솔하부합가고성요구적결과。진일보분석로면결구대고교통증장솔적저항능력강약,제출침대강저초박력청로면조기손해적조시。
The ultra-thin asphalt pavement ow ns distinctive early stage disease such as early significant cracks and rutting since it has a thin surface layer compared to traditional pavement structure .The re-search establishes models to simulate National Highway 1 in Congo (Brazzaville) by MEPDG soft-ware .Considering load level and pavement material properties ,the research analyzes the reason of early disease in ultra-thin asphalt pavement .By adjusting the key factors of modulus and thickness of each layer ,the simulation arrives at the 95% reliability requirements of pavement structural strength such as top-down cracks and down-top cracks and rutting .The research also proves the performance of various pavement structure to resist high traffic growth rate ,and draw s conclusions about reasona-ble indicator trends of ultra-thin asphalt pavement .