Research on proposing measures to reduce losses in underground coal mining in the Uong Bi region

Abstract

The optimization of solid mineral extraction processes, particularly underground coal resources, plays a vital role in Vietnam’s energy security strategy and sustainable development. In the Uong Bi area of Quang Ninh Province, the current situation of resource loss in underground mining remains a major challenge, with loss rates fluctuating between 28% and 31%. This loss not only results in the waste of mineral resources finite national assets but also reduces the efficiency of capital investment utilization, shortens mine life, increases mining costs in later stages, and simultaneously leads to negative social impacts such as reduced employment effectiveness, imbalanced development in mining regions, and the emergence of serious environmental consequences.This report focuses on analyzing the core groups of factors causing coal losses, including complex geological conditions such as steeply inclined, thin seams and faulting; limitations in the level of technology and equipment applied in the area; shortcomings in production organization models and human resource management; as well as technical safety constraints stipulated by national standards. By inheriting and further developing modern technical solutions such as synchronized mechanization, the application of improved ZRY flexible shield technology without leaving protective pillars, and the Lean Mining management model, the study proposes a comprehensive system of measures. The fundamental objective is to reduce the loss rate to below 25% in accordance with the orientation of the Vietnam National Coal and Mineral Industries Group (TKV), thereby contributing to improved economic efficiency and enhanced protection of the mining environment.