three-line pavement

Based on the construction of sub base course of 205 national road Boshan laiwu expressway, the quality control methods of three indexes are introduced, i.e. strength, degree of compaction and pavement evenness.

结合205国道博莱高速公路底基层的施工，介绍了工程中如何对二灰砂土底基层三项指标，即强度、压实度和平整度的质量进行控制。

The three aspects of sand-gravel pavement maintaining are facing maintaining, wearing course maintaining.

介绍了砂石路面养护的内容,即面层养护 、 磨耗层养护.

Then a three dimensional finite element analysis method is used to analyze the difference of the mechanics response under actual tire contact pressure with different interlayer touch types in simi-rigid base asphalt pavement and flexible base pavement.

基于此，采用三维有限元方法，分析在实测轮胎荷载作用下，完全连续、基、面层间光滑两种层间接触状态时，柔性基层和半刚性基层路面力学响应的差异。

Three Important Aspects in the Technology Application of Compound Consolidated Soil Pavement Base

复合固结土路面基层技术应用中的三个重要环节

Connecting with the project practice, this article discusses the design and test method and construction technology of the layered steel-fiber concrete, and compares the total cost of three type of concrete pavement.

本文结合工程实际，讨论了层布式钢纤维混凝土的设计方法、检验方法、施工工艺，并对三种混凝土路面进行了总费用的对比。