and The subgrade engineering的意思|示意

For a soft ground subgrade, the widening engineering of highway focuses not only on the soft ground fills in new section, but on the joint of new and old subgrade.

在软土地基上，公路路基的加宽工程除了要重点解决好填方路段新路基下软基处理方案，还要处理好新老路基之间的衔接即新老路堤的不均匀沉降问题。

Therefore, it is very important and realistic for the pavement engineering to investigate the subgrade work area depth and its impact factors and the effect on the pavement structure.

因此，研究重载交通条件下路基工作区深度及相应的工程防治措施，对提高等级路道路结构使用寿命具有十分重要的工程和现实意义。

Subgrade and foundation engineering is a kind of concealed work, which is located under the ground surface.

地基与基础位于地面以下，属于隐蔽工程。

The results of experiments and engineering show that it is feasible to adopt dry compaction procedure for subgrade construction road.

试验研究及工程实践结果表明：对于砾石土及风积沙，采用干压实施工工艺修筑路基是完全可行的；

Along with continuously strengthening of people's consciousness of engineering quality and highway environment, people pay more and more attention to the design of subgrade protection.

随着人们工程质量意识和公路环境意识的不断增强，路基防护工程设计越来越为人们所重视。

Freeway fill subgrade construction and quality control is the key of influencing freeway engineering quality.

高速公路填石路基施工与质量控制一直是影响高速公路工程质量好坏的关键之一。