The Recent Progress China Has Made in the Backfill Mining Method, Part III: Practical Engineering Problems in Stope and Goaf Backfill

Abstract

With the continuous innovation and development of science and technology, the mining industry has also benefited greatly and improved over time, especially in the field of backfill mining. Mining researchers are increasingly working on cutting-edge technologies, such as applying artificial intelligence to mining production. However, in addition, some problems in the actual engineering are worth people’s attention, and especially in China, such a big mining country, the actual engineering faces many problems. In recent years, Chinese mining researchers have conducted a lot of studies on practical engineering problems in the stope and goaf of backfill mining method in China, among which the three most important points are (1) Calculation problems of backfill slurry transportation; (2) Reliability analysis of backfill pipeline system; (3) Stope backfill process and technology. Therefore, this final part (Part III) will launch the research progress of China’s practical engineering problems from the above two points. Finally, we claim that Part III serves just as a guide to starting a conversation, and hope that many more experts and scholars will be interested and engage in the research of this field.

The Recent Progress China Has Made in Green Mine Construction, Part I: Mining Groundwater Pollution and Sustainable Mining

“…As early as 2014, Oluwasola et al [87] proposed that tailings had the potential to be used as building and construction materials; (2) Mining waste, such as tailings, red mud, waste rocks, etc., can be used as backfill materials and backfill aggregates in the backfill mining method, which can save significant mining costs. At present, the application of mining waste to backfill has become a common practice in various mining enterprises in China [8,9,88]; (3) The main component of mining waste, such as tailings and coal gangue, is silica (SiO2), therefore, the mining wastes are often used to make inorganic products, such as magnetic sheath and glass, bringing good economic effect [89]; Therefore, the use of mine waste in the preparation of concrete materials (especially in Road and Bridge construction) is also an important link in the development of green mine construction. Engineer Wanjun Jiang from the China Road and Bridge Corporation has carried out relevant studies.…”

Coal and Rock Dynamic Disasters: Advances of Physical and Numerical Simulation in Monitoring, Early Warning, and Prevention - Volume II

“…In terms of quarry area management, dealt with goaf-related hazards in advance at specific working faces by enhancing continuous monitoring of water levels and volumes. The most widely available approach for ground pressure management is to use the waste rock, tailings sand, concrete and other materials to fill the goafs (Deng et al, 2009;Feng and Huang, 2020;Yu et al, 2022;Zu et al, 2023).…”

Early warning technique research of surface subsidence for safe mining in underground goaf in Karst Plateau zone

“…In terms of quarry area management, (Wang et al, 2023) dealt with goaf-related hazards in advance at specific working faces by enhancing continuous monitoring of water levels and volumes. The most widely available approach for ground pressure management is to use the waste rock, tailings sand, concrete and other materials to fill the goafs (Deng et al, 2009;Feng and Huang, 2020;Liu et al, 2022;Yu et al, 2022;Zu et al, 2023).…”