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本文依托高寒地区G213线临夏市至郎木寺段维修改造工程,提出了多碎石嵌挤型水泥稳定碎石基层结构特征及作用机理,分析了骨架密实F型级配、多碎石嵌挤M型和C型级配混合料3d、7d无侧限抗压强度及劈裂强度变化规律;通过对多碎石嵌挤型水泥稳定碎石C型级配基层试验路检测表明,该结构具有优越的承载能力及抗裂性能,为高寒地区二级公路在低温、大温差环境及保畅通压力下过早开放交通等复杂工况下水泥稳定碎石基层施工提供重要参考。
This article relies on the G213 line Linxia City to Linmu Temple section maintenance and renovation project, put forward multi-gravel inlaid cement stabilized macadam base structure characteristics and mechanism of action, analysis of the skeleton dense F-type grading, multi-gravel embedding M And C-type mixture of 3d, 7d unconfined compressive strength and splitting strength variation; through multi-gravel inlaid cement stabilized macadam C type grading test road test showed that the structure has superior Bearing capacity and crack resistance for the secondary highway in the alpine region in low temperature, large temperature difference under the environment and the preopen open traffic under the pressure of cement and other complex conditions to provide an important reference for the construction of cement stabilized aggregate.