Chanzhen Tunnel Construction Monitoring Measurement And Data Analysis

With the new Austrian tunneling method(NATM) widely used in tunnel construction, construction monitoring measurement and data analysis of increasingly prominent role. Scientific and reasonable monitoring measurement and on the basis of the data analysis, can compare the intuitionistic judgment of the surrounding rock's stability, the better service for tunnel construction, and the surrounding rock properties for further research provides a strong basis. Thesis mainly with Chazhen tunnel to rely on, for tunnel construction monitoring measurement and data processing were studied.In monitoring measurement, based on highway tunnel construction monitoring measurement standard and combining with the actual situation of ChaZhen tunnel, make up scientific monitoring measurement solutions. And in the actual measurement of multipoints and measuring line protection conducted a series of exploration. In data processing, application of regression analysis, gray system GM (1,1) model to measured sections of final displacement of forecast a comparative study. And with the displacement sensitive rate measured displacements the concept of the dynamic relationship between measuring lines. According to the ChaZhen tunnel actual monitoring measurement results establish ChaZhen surrounding rock's stability assessment criterion. Finally the typical sections of ChaZhen monitoring measurement data were analyzed.Through the ChaZhen tunnel construction monitoring measurement and data processing of research and made the following main achievements:1. Design the ChaZhen tunnel construction monitoring measurement schemes of monitoring measurement of multipoints measuring line protection by a series of exploration, and good results were obtained.2. By using regression analysis method and grey system GM (1,1) model to allow limit displacement prediction, proof gray system GM (1,1) model prediction accuracy is relative taller. 3. Use the concept of displacement sensitive rate to determine baseline displacement control, good result is achieved.4. Through the ChaZhen tunnel monitoring measurement data analysis, established the ChaZhen surrounding rock's stability criterion standards.5. Through to monitor measuring data analysis, it is proved tunnel is the second lining the stress.