路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2012年
2期
46-48,52
,共4页
道路工程%沥青路面%超载率%层间接触
道路工程%瀝青路麵%超載率%層間接觸
도로공정%력청로면%초재솔%층간접촉
highway engineering%asphalt pavement%overloadingrate%interlayer contact
基于甘肃省目前普遍存在的超载现象,采用我国典型的半刚性沥青路面结构,同时针对沥青路面面层一基层间的层间接触,利用路面结构分析计算软件BISAR3.0对半刚性沥青路面的路表弯沉、面层层底弯拉应力及路基顶压应变进行计算分析。结果表明,不同的超载率对半刚性基层沥青路面结构力学响应有很大影响,而面层一基层间层间接触条件的逐步恶化又加剧了超载对路面的损害效应。基于此结论,建议在路面施工过程中,应保证面层一基层间接触良好,并在道路运营期间采取一些措施控制车辆的超载、重载。
基于甘肅省目前普遍存在的超載現象,採用我國典型的半剛性瀝青路麵結構,同時針對瀝青路麵麵層一基層間的層間接觸,利用路麵結構分析計算軟件BISAR3.0對半剛性瀝青路麵的路錶彎沉、麵層層底彎拉應力及路基頂壓應變進行計算分析。結果錶明,不同的超載率對半剛性基層瀝青路麵結構力學響應有很大影響,而麵層一基層間層間接觸條件的逐步噁化又加劇瞭超載對路麵的損害效應。基于此結論,建議在路麵施工過程中,應保證麵層一基層間接觸良好,併在道路運營期間採取一些措施控製車輛的超載、重載。
기우감숙성목전보편존재적초재현상,채용아국전형적반강성력청로면결구,동시침대력청로면면층일기층간적층간접촉,이용로면결구분석계산연건BISAR3.0대반강성력청로면적로표만침、면층층저만랍응력급로기정압응변진행계산분석。결과표명,불동적초재솔대반강성기층력청로면결구역학향응유흔대영향,이면층일기층간층간접촉조건적축보악화우가극료초재대로면적손해효응。기우차결론,건의재로면시공과정중,응보증면층일기층간접촉량호,병재도로운영기간채취일사조시공제차량적초재、중재。
Based on the current common phenomenon of overloading in Gansu Province, the semi-rigid asphalt pavement structure typical in our country is adopted ; at the same time, against the interlayer contact between the surface and base layers of semi-rigid asphalt pavement structure, its surface deflection, tensile stress on the surface and base layers and compressive strain on the top of the subgrade are calculated and analyzed with bisar3. 0 software for pavement structure. The result shows that different overloading rates have great influence on the mechanical response of semi-rigid base asphalt pavement structure; and the gradually worsen interlayer contact conditions between surface and base layers intensify the damage effect of overloading on pavement. Based on this conclusion, it is recommended that during pavement construction, good interlayer contact conditions shall be guaranteed and some measures adopted to control overloading and heavy loading of vehicle in highway operation.