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In view of the various constraints faced by cultural tourism industry in the process of integrated development, fifteen risk factors affecting the integration of the cultural tourism industry are analyzed from five dimensions. Taking the cultural tourism industry in Hefei as the research object, this paper analyzes the centrality and cause degree of each risk factor with the DEMATEL method. Combined with the ISM method, it analyzes the structure of risk factors for the integration of Hefei's cultural tourism industry, then sorts it into the deep factors, intermediate factors and convergence factors. The results show that the centrality of market integration risk is the highest; technology convergence risk and organizational convergence risk are the two key underlying risks; product fusion risk is a conductive risk; insufficient market adhesion is the main risk outcome factor, and it is also a direct reflection of the cultural tourism industry integration risk. According to the analysis results, relevant suggestions were put forward to promote the further integration and development of cultural tourism industry in Hefei. [ABSTRACT FROM AUTHOR]

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In order to obtain accurate ground stress, deformation and failure law, and instability mechanism in deep soft rock tunnel, the two caverns at the same level in 1 km deep mine were selected for testing acoustic emission technology to gain the value and direction of respective ground stress. The test found that the distribution of vertical stress has a slight difference, and the distribution of horizontal stress had great difference. Based on the theory of in-situ stress calculation formula, the corresponding program was written with VB6.0, for calculating the value and direction of main stress field in corresponding part. Combining with the field drilling histogram, a model was established using ANSYS, and then imported into FLAC3D to make numerical analysis. Therefore, the cavern surrounding rock deformation law and instability mechanism under corresponding main stress field were obtained. It shows that there was larger concentration degree and wider distribution of shear stress in weak region, and the destruction of surrounding rock was very serious. Finally, the study found that the field measurement data is in consistent with numerical simulation results. It found that the seriously damaged surrounding rock also has a big convergence rate, which reveals the law of deformation and destruction in deep soft rock roadway and explains that the surrounding rock lithology, the concentration degree and the range of shear stress play an important role in the roadway stability. [ABSTRACT FROM AUTHOR]