Modulus of resilience which represents stress - strain properties of the roadbed and material strength of the roadbed is a very major parameter in road surface designing
3.
Under the conditions of dry , optimum moisture content or half of optimum moisture content and three kind diameter of loading boards , the main factors relative to modulus of resilience are also studied through the test of modulus of resilience
4.
On the basis of field investigation and a lot of tests , the paper detailed researches the engineering geology properties of xigeda filling material . the distinction of the modulus of resilience was analyzed , and the influence of the intrinsic factors including moisture content , dry density , mudstone content and the external factors including compaction mode , paving thickness were adequately discussed . based on the researching how various factors influence the road compaction effectiveness , the author studied the relationship between modulus of resilience and roadbed compaction quality index , connected the compactness with modulus , and listed the data of the modulus in the various compaction area
5.
To discuss farther the relation between compaction and deformability , moreover bring forward the reasonable method of roadbed compaction quality detection , the writer used the settlement data of the roadbed to validate father the correctness of the modulus value ; and demonstrated that it was not reasonable that the compactness is regarded as the only index representing compaction quality in the criterion , and demonstrated that the modulus of resilience is a credible index which represents compaction quality by contrasting the deformability of roadbed modes in the different compacted condition
6.
In this paper , a series of surveys on road condition , pavement - performance and destroy reason are analyzed , soil property , hydrologic regime are combined , modulus of resilience are confirmed on heavy compaction test , foundation classification in area of qinhuangdao is divided into 3 grades and highway is divided into 3 districts according to the principle that different soil grades produce the same effect on thickness of base course or bottom course , classification of traffic is divided into 4 grades after observation materials of traffic volumes are collected extensively , traffic characters and parameters are analyzed
7.
In the highway blacktop design criterion ( tjt014 - 97 ) , four methods are recommended to the value of the modulus of resilience of the roadbed . however , the limitation of the methods induce disconnection between the designing modulus index and the compaction in the process of field construction
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