Research and Application on Supporting Technology of Deep Foundation Pit Soil Nail

摘要

In this paper, mechanism, process, constitutive relation and failure criterion of deep foundation pit soil nail were analyzed, which can offer theory for deep excavation firstly. Secondly, simulation model was built by engineering example; Excavation load, displacement and stability calculation is realized in a digital computer, which can offer initial parameters for engineering in excavation controlling process. Finally, simulation and testing effect were comparing analyzed, industrial test and measurement were carried out. It is proved that numerical simulation fit in with measured results. The research can provide the basis for controlling of deep foundation pit soil nail, which has practical value.