随着国民经济的发展,各类民用与工业建筑日益走向高层化,人工挖孔桩以其特有的大承载力优势得到许多设计单位、施工单位的认可,确实是一种经济适用的基础形式。 With the development of the national economy, various types of civil and industrial buildings are increasingly moving toward higher levels. Manual excavation piles have been recognized by many design and construction units for their unique advantages in large bearing capacity, and are indeed an economically applicable basic form.