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经济的发展离不开公路建设,我国的高速公路建设速度越来越快,但是也存在着一些建设施工障碍,其中最为受人们关注的就是膨胀土路基对高速公路施工的影响。假如采用膨胀土路基,在自然和人为施加的压力作用下,就会发生高速公路路面发生不均匀沉降,使公路出现裂缝和沟坎,进而影响公路的正常通车。本文就此问题首先阐述了什么是膨胀土、如何判断膨胀土,接着探讨了高速公路建设过程中膨胀土路基的施工工艺,最后深入研究了膨胀土路基施工过程中需要注意的事项。
Economic development is inseparable from highway construction. The construction of expressways in our country is getting faster and faster, but there are also some obstacles in construction. Among them, the most concern is the influence of expansive soil subgrade on expressway construction. If the use of expansive soil embankment, under the natural and man-made pressure under the action, there will be uneven uneven settlement of the highway, the highway cracks and ditches, thereby affecting the normal opening of the road. This paper first expounds what is expansive soil, how to judge the expansive soil, and then discusses the construction technology of expansive soil roadbed in the process of expressway construction. At last, it needs to pay more attention to the matters needing attention in the construction process of expansive soil subgrade.