盖岩 meaning in English

roof rock

The foundation for an earth - fill dam would be the natural soil or rock on which the dam is placed . concrete footings or piles and pile caps are often referred to as foundations without including the soil or rock on which or in which they are placed
一)关于支持基础结构影响土壤. (三)关于基础结构支持关岩. (二)结构得到一堆地基桩,使桩可安装在土壤和终止一切小费支持是从土壤中,也可以安装,使复盖岩小费.结合混凝土地基土壤和岩石上的地基或支持