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In order to study the influence of the aspect ratio of the short-wall filling roadway on the stability of surrounding rock, the theory of numerical analysis and numerical simulation were used to analyze the principle of cooperative roof control of the short-wall filling roadway. The change laws of the stability of surrounding rock under different aspect ratios are presented.Research indicates that: when the height of the roadway is fixed, the maximum approach of the top floor and the two sides increases slowly with the increase of the width to height ratio and then decreases slightly, and then increases rapidly after the width to height ratio is greater than 1.0. And when the width to height ratio of the roadway is 1.0, the deformation of the panel per unit area is the smallest, which is most beneficial to the stability of the surrounding rock of the panel. Combined with the specific conditions of Bailiang Xusheng Coal Mine, the reasonable width-to-height ratio of the short-wall filling roadway was determined to be 1.0, and a specific support scheme was given based on the asymmetric deformation characteristics of the roof.

In our living environment, we frequently encounter natural disasters such as typhoons, floods, earthquakes, drought, petrochemical plant safety accident, stripping accident and so on. Due to global climate change, natural disasters have become even more devastating. Thus, it is important to look for ways to mitigate disasters. This study employs the concept of resilience to examine the ability of parks to recover from natural disasters. According to previous disaster history, the damage caused by natural disasters in the parks is mainly water and wind. Therefore, this study first conducted a literature review to find out relevant resilience criteria that are advantageous for combating water and wind disasters, and to recognize the degree of resilience achieved by each criterion. Then, based on the elements of the resilience criteria, the study establishes a preliminary resilience grading system. Furthermore, three different types of parks are evaluated under the grading system. This study provides a theoretical basis for resilience grading and suggestions for improving parks in the future.