嵌岩桩在我国许多地区得到广泛应用。嵌岩深度与基岩的性质密切相关,但现行规范中对硬质岩石和软质岩石的划分不够明确,有些分类名称容易混淆,使得风化岩中桩的入岩深度的取值不统一。通过对比分析我国现行几本规范,明确了《建筑地基基础设计规范》和《建筑桩基技术规范》中硬岩和软岩的划分标准,有助于合理地确定风化岩地基中桩基的嵌岩深度。 Rock-socketed pile in many parts of our country has been widely used. The socketed depth is closely related to the nature of bedrock. However, the classification of hard rock and soft rock in the current code is not clear enough. Some classification names are easy to be confused, which makes the values ​​of rock depth in weathered rock are not uniform. Through comparative analysis of several current codes in our country, the criteria for the classification of hard rock and soft rock in “Code for Design of Foundation of Building Foundation” and “Technical Code of Construction Pile Foundation” are clarified, which is helpful for the reasonable determination of embedded Rock depth.