A kind of new composite soil nailing with reinforced cemented-soil wall is described and applied in a foundation excavation project in wuhan. A field investigation with extensive instrumentation and data collection is carried out
then the behaviors of the new composite soil nailing are further investigated based on the measurement. The main results are:(1) the defection is large at the top and little at the bottom; (2) cemented soil and reinforcing bar can work together at some level of stress; (3) the reinforced cemented-soil wall plays an important role during construction; (4) the behaviors of this supporting system include retaining-wall effect