The shape of the gasifier cavity and the high temperatures induced by underground coal gasification (UCG) have a significant influence on the failure characteristics of the surrounding rock. In this study, the variations in the mechanical properties of the surrounding rock in gasifier cavities subjected to different temperatures (20–700°C) were obtained experimentally, and the results were used to establish numerical models. FLAC3D was used to analyse the failure of the surrounding rock in drop-shaped and traditional rectangular gasifier cavities. The mechanical parameters of the surrounding rock in the numerical model were assigned a gradient distribution based on the temperature propagation law and the experimental results. The results revealed that the temperature of the surrounding rock has a significant influence on the coal pillar stability, and the surrounding rock primarily undergoes shear failure. As the temperature of the surrounding rock increases, the width of the stable coal pillar increases exponentially; the reasonable widths for coal pillars between adjacent drop-shaped gasifier cavities are 12 m (room temperature), 17 m (700°C and 850°C), 18 m (1000°C), 19 m (1150°C), and 20 m (1300°C). In contrast, the reasonable width of coal pillars in traditional rectangular gasifier cavities is approximately 21 m, which is significantly higher than that for drop-shaped gasifier cavities.

This study intends to investigate how aspects such as financial knowledge and the rate of technological advancement influence the lifetime of enterprises in developing nations like Pakistan. For this purpose, a survey study was designed to obtain data from 325 business owners in different parts of the country. Structural Equation Modelling (SEM) was utilized to analyze this dataset. According to the analysis outcomes, not only do practices connected to financial literacy and innovation play a crucial role in a firm’s long-term viability, but they also have a substantial beneficial impact on the company’s viability. The research concluded that an increase in financial knowledge, expertise, and experience in corporate operations helps the continued viability of firms. Knowledge of financial concerns also predicted the company’s ability to innovate and adapt. In addition to the environmental sustainability of the business. As a result, it was concluded that it plays the role of a mediator in the link between innovation and the ongoing existence of businesses. Because of this, financial literacy is now acknowledged as a vital knowledge resource for determining one’s financial course of action, which was not the case previously. According to the study’s conclusions, for businesses to continue to be sustainable, authorities need to enhance their financial literacy level and adopt sustainability models into their day-to-day operations.