1.Work objectives

Adhering to the principle of putting people first and life first, deeply learning from the lessons of recent open-pit mine accidents, we plan to use three years to basically establish a national open-pit mine safety production risk monitoring and early warning system, realizing the identification, monitoring, and accurate judgment of major safety risks in key areas and key links of open-pit mines, promoting the transformation of mining safety supervision and supervision mode to remote, visual, and intelligent methods, and promoting mining enterprises to strictly implement their main responsibility for safety production. According to the principle of "highlighting key points and prioritizing urgent needs", the construction of the slope monitoring system for key open-pit mines will be completed by 2023, and networking work will be carried out.

2.Construction task

(1) Scope of construction. Normal production and construction of open-pit coal mines; Normal production and construction of metal and non-metal open-pit mines with a slope height of 150 meters or more.

(2) Construction content. Including: surface deformation, video images, internal deformation, stress, groundwater, blasting vibration, rainfall, etc. Among them, surface deformation and video images are the items that need to be monitored, while other monitoring items are constructed based on current standards and regulations, as well as the requirements of various levels of mine safety supervision and inspection departments, combined with the actual situation of the mine.

(3) Networking method. Upload perception data in the manner of "enterprise provincial mine safety supervision and inspection department national bureau", and do a good job in data networking access according to the principle of "mature one, networked one". The specific network access specifications will be separately formulated by the National Mining Safety Supervision Bureau.

3.Organize and implement

(1)Division of responsibilities. The provincial bureaus of the National Mining Safety Supervision Bureau, together with the provincial coal mine safety supervision departments, guide and supervise open-pit coal mine enterprises to carry out construction and networking work; Provincial non coal mine safety supervision departments guide and supervise metal and non-metal open-pit mining enterprises to carry out construction and networking work.

(2)Design requirements. Open pit mining enterprises should entrust the original design unit or units with corresponding design qualifications to design the slope monitoring system, and organize expert review and approval before implementing and accepting it according to the design; Open pit mining enterprises that have already started the construction of slope monitoring systems but do not meet the requirements of this document shall supplement or redesign their designs. The slope monitoring system should evaluate the current status of slope stability in different zones based on the investigation report of open-pit mine slopes, slope stability research report, and mining design data, combined with the complexity of slope engineering geology, hydrogeological conditions, geological conditions of production and exposure, and geological conditions of the foundation of the waste dump, disposal methods, and composition of stripped materials. The safety monitoring level of slopes in each zone should be clarified. The overall design of slope monitoring plan should be carried out according to the final slope boundary, different periods, and different mining requirements, and construction should be carried out in stages according to the design requirements.

(3)Completion time. The open-pit mines within the construction scope shall complete the construction of slope monitoring system and carry out networking work before December 31, 2023.

4.Job requirements

(1)Strengthen organizational leadership. Provincial mining safety supervision departments should attach great importance to it, strengthen organizational leadership, establish work teams, refine work measures, and enhance guidance and supervision; The main person in charge of open-pit mining enterprises is the first person in charge of this work, responsible for organizing the formulation and implementation of work plans, ensuring the necessary funds, materials, and personnel, formulating work measures, and ensuring the completion of construction according to requirements (see attachment for specific requirements).

(2)Strengthen management and utilization. The slope monitoring system is an important safety facility in open-pit mines and should gradually be included in the "three simultaneities" management. Open pit mining enterprises should reasonably set warning parameters, improve warning and disposal processes, strengthen the use and maintenance of slope monitoring systems, ensure the normal operation of the system, the authenticity and effectiveness of data, and the safe and stable transmission, and play the role of monitoring systems in advance prevention.

(3)Strict supervision and inspection. Mining safety supervision and inspection departments at all levels should strengthen supervision and inspection of the construction of slope monitoring systems in open-pit mining enterprises, ensure construction progress and quality. For open-pit mines that fail to complete construction as required within the prescribed time limit, they should be ordered to stop production in accordance with laws and regulations. The provincial bureaus and non coal mine safety supervision departments of the National Mining Safety Supervision Bureau shall report the completion status of slope monitoring systems for coal mines and metal and non-metal open-pit mines in their jurisdiction to the National Mining Safety Supervision Bureau before January 31, 2024.