【摘 要】
：
The technology of geosynthetic reinforced soil has been widely used in the structural strengthening of highway subgrade.Under the action of long-term vehicl
【机 构】
：
SchoolofCivilEngineering,QingdaoTechnologicalUniversity,FushunRoad11,Qingdao,China,266033
【出 处】
：
2016年交通基础设施和材料国际会议
论文部分内容阅读
The technology of geosynthetic reinforced soil has been widely used in the structural strengthening of highway subgrade.Under the action of long-term vehicle cyclic loading,geosynthetic reinforced soil can effectively improve the bearing and deformation resistance capacity of the subgrade,improve the long-term stability of the highway structure and prolong the service period of the road.At present,the quasi-static method to design the geosynthetic reinforced subgrade under the action of traffic load is not perfect enough,the research on dynamic property,design theory and parameters still lags far behind engineering practice and technology development.In this paper,we investigated the dynamic triaxial tests in laboratory with different kinds of soils(clay and silt),different confining pressures(50 Kpa,100 Kpa and 150 Kpa),and different reinforcement layers(0 layer,1 layer and 2 layers)to show the changes and influencing factors of dynamic elastic modulus and damping ratio.The experimental results will provide the basis for the parameter choice of geosynthetic reinforced subgrade with the influence of traffic load.
其他文献
The phenomenon of overload operation of Expressway vehicles is particularly serious in China recently.Research on the extreme value of the vehicle load and
Since low temperature environment is one of the major problems encountered in the construction of asphalt pavement in northern XinJiang,this paper analyzes
In this paper a method is set up for assessing the best strategy for the management of a railway infrastructure over time.A model to evaluate the total cost
A series of consolidated-undrained tests was carried out on compacted loess with a hollow cylinder torsional shear apparatus to investigate the stress-strai
Weathered granite soil is abundant in China and it is used extensively as a fill material.However,systematic research on this material is relatively less as
Funding the maintenance,rehabilitation and reconstruction(MR&R)of highway infrastructure is becoming a challenging task for highway agencies around the glob
To explore the feasibility of weathered shale as expressway subgrade,the study on the mechanism of shale weathering and its filling strength(CBR test)were c
Reliability of passive earth pressure calculations in geotechnical engineering are usually performed using the Rankine theories of earth pressure.This paper
Walking speed is an important parameter for signal timing and safety analysis at signalized intersections.Walking speed varies significantly at different lo
It is a consensus that salt heaving and frost heaving are typical distresses in the sulfate saline soil subgrade.To further investigate the mechanic respons