In order to solve the outstanding problems in the management of stripping contractors in open-pit coal mines,through analyzing the current situation of contractor management in the domestic mining industry,the article proposes a"14212"systematic management model,abandoning the past all-passive management and forming an active+passive two-way management method.The results show that by improving the management system,standardizing the implementation of responsibilities and eliminating management loopholes,we can weaken a series of problems caused by high turnover of personnel from stripping contractors,low cultural level and disordered management and greatly reduce the difficulty of management.At the same time,we eliminate the phenomenon of prevarication and wrangling existing in the management and stripping of contractors by functional departments and teams at the mine level,strengthen the supervision and control of contractors,and ensure the safe production of open-pit mines.
Taking west slope soft rock slope of Buzhaoba Open-pit Mine as the research object,combined with the relevant geological data,a three-dimensional model was established,and the strength reduction method was used to study the local step slip mechanism of west slope soft rock slope of the Buzhaoba Open-pit Mine using FLAC3D software.According to the comparative analysis of the monitoring data and rainfall data before the landslide,the cause of the deformation was further clarified.At the same time,the basic process of deformation and disposal of soft rock slope in the west slope of the open-pit mine is introduced.The results show that rainfall is the main inducing factor of the slope deformation,the deformation is mainly located in the shallow layer of the slope free surface,the stress distribution is basically parallel to the slope surface,and the tensile stress and compressive stress are concentrated at the top and foot of the slope respectively,which is a push-type deformation and is consistent with the actual deformation characteristics of trailing edge settlement and leading edge uplift.
This article briefly elaborates the information systems and application status of the coal production business of Zhunneng Group,describes the construction of the production data standardization system and the production data real-time database platform,and uses big data analysis technology to realize the comprehensive statistical analysis of the coal production business data,production real-time monitoring data,and the centralized storage,management and display of the business data,fundamentally solving the problems of overlapping and mixing of information system business,uneven standards,independent data and weak decision-making support capabilities.The results show that through the construction and application of this platform,intelligence can effectively guide production operations,which provide reliable support for decision-makers to accurately issue instructions,and provide a foundation for the intelligent construction and high-quality development of enterprises.
Aiming at the problems of inclined basement dumping and dump stability,based on the engineering background of 15～17°basement in the north slope of Heishan Open-pit Coal Mine,the article carries out the research on the dumping scheme and stability.The article analyzes deformation characteristics and sliding mode of inclined base dumping,carries out analysis and research on 15 m single-bench dumping,combined-bench dumping and optimal dumping angle of inclined basement.According to the width of the transportation road and the storage capacity of the dumping,the optimal dumping scheme is selected.The results show that the width of the combined steps is more than 20 m,and the dumping steps do not affect each other;the slope angle is less than 21°,and the overall stability of the slope is greater than 1.3.Finally,the scheme combination step distance is 20 m and the slope angle is 20.2°.
The article discusses the ecological monitoring indicators and methods for open-pit coal mines from three aspects:soil parameters,meteorological and hydrological parameters and vegetation parameters,introduces the overall architecture of the intelligent ecological data management platform for open-pit coal mines,and elaborates the functions and key technologies of four modules:data collection,data storage,data analysis,and decision support.The article presents the intelligent ecological monitoring solution for open-pit coal mines has been proposed based on manual monitoring and an intelligent ecological data management platform for open-pit coal mines,forming an intelligent ecological maintenance platform for open-pit coal mines.
