天然气管道建设场地房采采空区稳定性评价方法

为了准确评估天然气管道建设场地房柱式开采工艺遗留采空区的稳定性，在分析采空区地质条件的基础上，根据有关规范要求，完成了开采沉陷区地表残余影响的移动变形计算、覆岩破坏高度与建设工程影响深度的安全性分析、煤柱的长期稳定性分析。综合分析结果表明，天然气管道建设场地房采采空区不稳定。论文还提出了处理不稳定采空区的措施建议，可为房柱式开采工艺遗留的采空区地表建设提供参考。

Room - Pillar Mining System Goaf Stability Method in Natural Gas Pipeline Construction Area

This paper analyses the geological conditions of room - pillar mining system goaf. Taking the construction of natural gas pipeline as an example, according to the requirements of relevant codes, this paper calculates the displacement and deformation of surface residual influence in mining subsidence area, analyses the safety of the damage height of overburden and the influence depth of construction project, and analyses the long-term stability of coal pillars. In this paper, measures and suggestions for goaf treatment are put forward. The technical ideas in this paper can provide technical reference for the stability evaluation of surface construction site in room-pillar mining system goaf.