【摘要】 结合青藏铁路的工程实例,对钻孔扩底桩的特点和施工工艺进行了详细的介绍,实例证明,扩底桩不仅施工简便、成孔质量好,而且施工文明,它是一种较理想的桩型。更多还原

【Abstract】 According to the practical work of Qinghai-tibet railway, the characteristic and construction technology of boring and expanding bottom pile is discussed in this paper. Testified by practice the pile is a perfect pile which is easy and quick in construction.更多还原