The Research Of The Methods Of Surrounding Rock Masses Stability Classification Based On The Geological Documentation Of Muck And The Boring Parameters Of TBM

It is particularly important that how to solve the question of the advanced geological prediction and the surrounding rock masses stability classification based on advanced geological information during TBM construction, to the reduction of the construction risk and the assurance of fast and safe construction.The surrounding rock masses stability classification based on the geological documentation of muck and the boring parameters of TBM is not only swift and simple, but also accord with the TBM construction characteristic during the construction of Double-shield TBM in the Yellow River Diversion Project of shanxi province. In this thesis, the methods of surrounding rock masses stability classification on the basis of the geological documentation of muck and the boring parameters of TBM are approached, especially as follows: â‘ The geological documentation of muck and the boring parameters of TBM in the Yellow River Diversion Project.of shanxi province is summarized systematically; â‘¡Based on the geological documentation of muck and the boring parameters of TBM, that whether the common methods of surrounding rock masses stability (the methods of regular factor classification) classification are feasible, is carried on the discussion; â‘¢According to the corresponding relation of muck and the boring parameters of TBM and the surrounding rock masses stability type, the extension assessment method of tunnel surrounding rock masses stability classification is set up, also the corresponding fortran calculation procedure worked out, and not only rational result in conformity with the reality can be obtained, but also the stability situation of surrounding rock masses in front of the working range can be predicted according to the change of the dependent value in the application instance of Yellow River Diversion Project; â‘£Combining with the application instance of Yellow River Diversion Project, extension assessment method in the application of surrounding rock masses stability classification is compared and verificated in detail by applying fuzzy synthesis method by forefathers, and a certain degree discussion and summary about the application achievement of surrounding rock masses stability classification, which is assessed by extension assessment method and fuzzy synthesis method, are carried on.