Based on the application of cast-in-place thin-wall concrete pile (PCC) in Yan-Tong Expressway, a series of field experiments and monitoring are conducted.

• 为了解现浇薄壁管桩复合地基的加固机理,在盐通高速公路试验段进行现浇薄壁管桩单桩复合地基静载试验。