石砌挡土墙是一种很古老的挡土结构，在我国山区有着很广泛的应用。
A stone masonry retaining wall is an old kind of retaining structures.
强夯法是一种经济高效的地基处理方法，近年来在我国的开山填淤、围海造田、山区回填等地基处理中得到了广泛应用。
Dynamic compaction is an economic and efficient method to construct ground foundation. It is widely used in mountain and marsh reform projects and other earth refill projects.
但红砂岩在我国分布较广泛，尤其在山区公路建设中大量存在。
But red sandstone is widely distributed in China, especially existed in large quantity during highway construction in mountain area.
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