近几年来,我国的钻孔灌注桩基础发展较快,应用也较广泛,取得了明显的效果。但同时存在着单方混凝土提供的承载力较低,水泥用量大等问题,影响它的进一步推广应用。为了较大幅度地提高单桩承载力,节省材料,降低工程造价,提出了研究试制用于 In recent years, the foundation of bored cast-in-place piles in our country has developed rapidly and its application has been extensive. It has achieved significant results. However, at the same time, there are problems such as low bearing capacity and large amount of cement provided by unilateral concrete, which affects its further application. In order to significantly increase the bearing capacity of single piles, save materials, and reduce construction costs, research and trial production were proposed.