采用各种形式的灌注桩,尤其是钻孔灌注桩作为建筑物的基础,与普通带形基础、独立柱基和打入桩相比较,具有许多优点。哈萨克基础工程工业设计院研究并制作了一种锥形钻孔器,并对这种钻孔器的钻头的工作情况进行了研究。就工程地质条件而论,试验桩基的土质 The use of various forms of cast-in-place piles, especially bored cast-in-place piles, as the foundation of a building, has many advantages over conventional belt foundations, independent column foundations and driven piles. Kazakh basic engineering industrial design institute researched and produced a tapered drill, and studied the working conditions of the drilling bit of this drill. In terms of engineering geological conditions, test the soil properties of the pile foundation