Injecting power plant flue gas into a goaf stores CO2 in the and effectively prevents spontaneous combustion of coal remaining goaf. Here, we investigated adsorption behavior three types at normal temperature pressure using self-developed experimental device. We used specific surface area porosity analyzer to study effects pore structure, mineral content, moisture content on coal. Based data, d...

Coal resources have always been the focus of attention in field sustainable development. Based on problem surrounding rock control close-distance coal seams, first, a mechanical model floor failure was established based 29204 working face Dongqu Mine; mechanism revealed by zero displacement line, and method to judge occurrence state roof lower seam put forward. Furthermore, FLAC3D numerical sim...

Due to the lack of historical subsidence data on goaf sites alongside expressways, it is difficult comprehensively evaluate stability and accurately identify potential risk points. An investigation study in Huaibei section Xu Huaifu Expressway conducted through SBAS-InSAR technology field investigation. Initially, site around route anticipated Afterwards, based extraction Sentinel-1 satellite i...