回弹模量是指路基,路面及筑路材料在荷载作用下产生的应力与其相应的回弹应变的比值,土基回弹模量表示土基在弹性变形阶段内,在垂直荷载作用下,抵抗竖向变形的能力,如果垂直荷载为定值,土基回弹模量值愈大则产生的垂直位移就愈小;如果竖向位移是定值,回弹模量值愈大,则土基承受外荷载作用的能力就愈大,因此,路面设计中采用回弹模量作为土基抗压强度的指标。
抗压回弹模量 compressive modulus of resilience ; modulus of compressive resilience
动回弹模量 dynamic modulus
静回弹模量 Resilient Moduli
土基回弹模量 modulus of resilience of roadbed ; soil base modulus of resilience ; resilience modulus of soil base
当量回弹模量 equivalent modulus of resilience
加卸载回弹模量 modulus of resilience under repeated loading
基层顶面当量回弹模量 composite resilient modulus of foundation
路基回弹模量 subgrade resilient modulus
静态回弹模量 static resilient modulus
In the same time,analyses the graded broken stone,Spermanent deformation and resilient modulus’affecting factors.
并对级配碎石永久变形和回弹模量影响因素进行了分析。
参考来源 - 级配碎石柔性基层性能试验研究Some acquaintance is obtained by test. When measuring point leaves border line of subgrade than 50cm, the position of measuring point and ratio of slope handly affect the modulus of resilience.
通过试验研究得出了以下认识:在回弹模量试验中当测点距路基边线大于50cm时,测点位置和边坡坡度变化对路基回弹模量的影响不显著。
参考来源 - 风积沙路基边坡稳定性的室内模拟试验研究In addition, when the content of coarse grain changes the variation laws of unconfined compressive strength, CBR, rebound modulus have been acquired.
此外,还开展了其它路用性能试验研究,得到了粗颗粒含量对土石混合料无侧限抗压强度、CBR及回弹模量的影响规律。
参考来源 - 土石混填路基压实质量控制方法研究Second,the subgrade soil permanent deformation test scheme is developed by referring to subgrade soil permanent deformation and resilient modulus test scheme.
其次论文参考国外路基土永久变形试验方案和路基土回弹模量的试验方案制定了本论文方案。
参考来源 - 重复荷载作用下粉土永久变形预估模型试验和理论研究·2,447,543篇论文数据,部分数据来源于NoteExpress
结果表明,PFWD可用于路基回弹模量的快速检测和评价。
The result shows it is feasible to measure and evaluate subgrade resilience modulus with PFWD.
同时,存在路基设计指标(回弹模量)与施工控制指标(压实度)不统一的问题。
At the same time, there is not uniform between subgrade design index (subgrade resilient modulus) and construction control index (compaction degree).
应用弹性层状理论,研究了不同等效方法对基层顶面当量回弹模量换算结果的影响。
The paper studied the calculation method of equivalent modulus of elasticity of foundation under principles of different equivalence by elastic multi-layer theory.
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