Institute of Geotechnical Engineering University 225127;
Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering University 210098;
School of Civil Engineering Jianzhu(Architecture and Engineering)University 110819;
College of Pipeline and Civil Engineering University of Petroleum(East China) 266580;
soil–structure interface; statistical damage model; mesoscopic element; Weibull function; “semi-softening”characteristic point;