结合具体工程实例，针对DDC桩试桩复合地基检测方法进行了介绍，分别阐述了单桩复合地基载荷试验的技术要求、加载装置、试验步骤及成果，以期指导施工人员对该类型地基处理方法的检验有一定的了解和认识。%Integrating with specific engineering case, this thesis introduces the composite foundation detection method with DDC testing pile, and respectively describes technological requirements of composite foundation loading test with single pile, loading equipment, experimental proce- dures and achievements, so as to guide constructors to have certain understanding and recognition for the foundation treatment methods of the a： bove-mentioned type.
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