摘要/Abstract

摘要： According to the common TSP interference and typical bad geological body may be encountered in the construction of tunnel engineering, we discusses the common causes of interference and their influence on data interpretation, determine the reflected interference information on the original data, and we gives examples of poor quality of data caused by poor source and receiver. we puts forward precautions to avoid the interference in the process of acquisition of TSP data. Cite two engineering examples, respectively introduces TSP on the prediction of fracture water, rock interlayer and other adverse geological characteristics, through the analysis of the typical mechanical parameters of surrounding rock, longitudinal offset profile maps and 2D maps, the spatial distribution characteristics of the type, location and structure of the potential bad geological body are predicted. The results are basically consistent with the distribution range of the bad geological bodies, which is proved by the actual excavation, and the feasibility and effectiveness of the TSP in the prediction of the common bad geological bodies are verified. Through summarizing and analyzing the causes of the common TSP interference and the TSP map of the typical bad geological body, it is helpful to provide a reference for the geophysical workers to explain the complex geological body more precisely, and to ensure the safety of the tunnel construction.


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