Study On The Monitoring System Of The Pile-Bolt Supporting Structure Of Deep Pit

Pile-bolt supporting structure has obtained the widespread application for it's strong superiority such as great project compatibility in recent 10 years. However the project accidents along with it also sharply increased. The project accident which occurs repeatedly, has created the heavy loss, is restricting China construction undertaking's development, arouses the community widespread interest. In view of this, conducts the research to the pile-bolt supporting structure and protections system security to be imminent, carries on the omni-directional security monitor, the accurate forecast deep pit project dangerous situation to the construction process to be urgent.This paper takes the pile-bolt supporting structure project examples as the foundation, in view of the present security monitoring insufficiency, through the analyses of the monitoring method and instrument's selection, the monitoring point position establishment, the monitoring forecasting warning value application , proposes my own view of how to establish perfect monitoring system.Based on this, this paper mainly carries on the research of the following aspects: Summarizes the present analysis security research situation from the deep pit safe research theory, the design method and accidents cause factors and summarizes the present deep pit safe monitor present situation from the safe monitoring theory development, the safe monitoring characteristics , monitoring practice. Summarizes the method principle and the modeling process of pile-bolt supporting structure (finite difference procedure principle and modeling), and summarizes the correlation theories of the deep pit project safe monitor.Takes the pile-bolt supporting structure project example as the foundation, analysis these contents such as monitoring project, monitoring method and instrument, measuring point establishment, monitoring result rule of the safe monitoring system, and emphatically discusses the maximum horizontal displacement value and the position change at the overload situation, provides the basic requirement for the safe observation system establishment of the pile-bolt supporting structure project; Makes use of the pile-bolt supporting structure project example, through finite difference procedure modeling and computation, discusses each spot horizontal displacement change tendency in the situation of peripheral existence construction load situation of the deep pit, provides the reference for the test point position's correct choice and the construction load's correct laying aside.The paper takes the deep pit project safe monitoring design, the implementation, the information feedback as the master line, proposes my own view of how to consummate the deep pit monitoring system, and proposes the concrete solution measure aiming at the security problem which possibly appears in the deep pit project.