Application of soil nailing wall in foundation pit supporting in Wuhan area

Urban deep foundation excavations are generally surrounded with dense buildings. So their working space is very narrow, especially when they are close to the foundations of adjacent buildings or structures in construction. Many scholars, engineers and technicians have already worked a lot in the displacement-controlling design of deep foundation excavations recent years, however, difficulty remains to be solved in correlation among the retaining structures, soil deformation around the excavations and the displacements of adjacent structures. Process of the typical deep foundation excavation of Wuhan Chunshuli program. The construction which is under the typical geological. Conditions of Wuhan area is simulated and analyzed with engineering soft. Soil nailing is chosen as the retaining system. Numerical simulation is carried out the horizontal displacement and the settlement around the foundation. Further more, we find the law of surrounding soil settlements, different settlement and absolute settlements of adjacent structures that may appear in the process of excavation by steps.