Abstract: Shotcrete-bolt-net support is the main structure form of deep tunnel′s supporting，and different support structure is adopted in the different working conditions.In order to verify the supporting effect of the new supporting structure system，taking the field tunnel industrial test as the research background and through the field monitoring of the support system with the new type support structure system，parameters of the surface displacement of the wall rock，the stress state of anchor bolt and the deformation inside surrounding rock are mainly monitored.The analysis of the monitoring results have indicated:the new supporting structure is a kind of flexible supporting structure，and it can deform in coordination with the surrounding rock deformation.And it is able to maintain sufficient working load and even some leavings，and the supporting structure is in good working condition within its design range.Through analysis on the inside displacement of tunnel wall rock，the tunnel surface displacement，and the bolt separation，it is concluded that the deformation of surrounding rock mass can be fitted by semi logarithmic function.At the same time，the whole deformation of the surrounding rock approaches to the steady state after anchored.It is fully approved that the new supporting structure system can effectively improve the deformation of surrounding rock，and increase effectively the stability of surrounding rock.

Key words: New type of supporting structure, Supporting scheme design, Field monitoring, Data analysis