In this paper, mechanism and construction practice of construction and demolition waste as pile filler in mollisol ground strengthening are explained, and eight examples of engineering application introduced.

• 阐述了建筑垃圾作复合载体夯扩桩填料加固软士地基的机理和施工工艺，并列举了8个工程应用实例，为建筑垃圾找到一条合理的利用途径。