Advanced Prediction Technology Research Of Complex Geological Conditions

Tunnel engineering as a kind of concealed work environment is in the ground, the main construction and underground geological environment are often unknown and complex, this brings a lot of potential risks for the construction of the tunnel engineering. In the process of tunnel construction in advance geological forecast, constraints to conduct detection and prediction of geological environment in front for accurate prediction of adverse geological location, guidance in advance the corresponding countermeasures reducing the probability of disaster risk is extremely vital significance. Therefore, under the condition of the complex geological advanced prediction technology research by the extensive attention of all countries.Based on today’s wide application in advance geological forecast method were introduced system research, analyzed the basic principle of prediction and forecasting methods, choosing advanced prediction solution for complex geological conditions provide a solid theoretical basis.Paper introduces several kinds of common adverse geological conditions in tunnel engineering, focus on its formation mechanism is different from normal geological conditions and characteristic of geological characteristics and the characteristics of the geophysical, provide reference for targeted put forward prediction scheme.Paper is based on practical engineering, in view of the fault fracture zone, karst geology, weak interlayer bad geolo gical bodies, in combination with a large number of past project, on the basis of forecast instance, summed up the targeted advanced geological prediction scheme, and application scheme to new of high-speed Shijiazhuang section of tunnel engineering, the new Jinchi railway tunnel engineering and the Q inghai-tibet railway GuanJiao new tunnel effect in practical engineering were analyzed, and the reliability validation protocols. For the future similar tunnel engineering in advance geological forecast work to provide the reference.Finally on several common bad geological radar to detect the forward analysis, actual detecting image contrast, verify the accuracy of the actual interpretation, at the same time rich graphical interpretation upon radar to detect s uch adverse geological characteristics, provide reference for the practical engineering applications.