Request PDF | Control effect of coal mining solid-waste backfill for ground surface movement in slice mining: a case study of the Nantun Coal Mine | Management of solid waste and protecting the ...
WhatsApp: +86 18221755073DOI: 10.1155/2020/8728653 Corpus ID: 220825934; Study on the Ground Movement in an Open-Pit Mine in the Case of Combined Surface and Underground Mining @article{Wang2020StudyOT, title={Study on the Ground Movement in an Open-Pit Mine in the Case of Combined Surface and Underground Mining}, author={Zhenwei Wang …
WhatsApp: +86 18221755073Therefore, it is necessary to carry out research to lay a foundation for establishing the calculation model of stress distribution in the pressure relief area behind the coalface at different mining heights. This study aims at the unclear effect of mining height control on rock strata movement and stress distribution law in existing studies ...
WhatsApp: +86 18221755073Application to a case study open pit iron ore mine in South Africa indicated a significant improvement in the spatial mine-to-plan compliance, from 69% to 94% over a three-year period from 2014 to ...
WhatsApp: +86 18221755073Surface subsidence induced by underground mining is one of the challenging problems in mining engineering, which can destroy ground surface buildings and cause huge economic losses to the mine. In this study, a two-dimensional numerical model, established by the discrete element method code PFC2D, was adopted to …
WhatsApp: +86 18221755073In consideration of the high filling costs and backfill material shortage at present, backfill–strip mining, which combines the advantages of strip mining and backfill mining, has gradually been adopted to control surface subsidence. In this study, similar material modeling is established to simulate strata movement characteristics of …
WhatsApp: +86 18221755073In this study, a two-dimensional numerical model, established by the discrete element method code PFC2D, was adopted to investigate the mechanical mechanism of surface subsidence and backfill ...
WhatsApp: +86 18221755073In order to study closed karst pressure's characteristics and its response to mining, a similar material experiment was carried out. A similar material experiment is an effective method to discuss and understand ground pressure systems in scientific research, especially in the coal mining field.
WhatsApp: +86 18221755073In the second and third simulation cases, the mined-out areas above 905 m were backfilled by the noncemented tailings and an insulating pillar was reserved beneath the backfill material, and then the deep ore body was excavated by two different mining methods to study the movement law of the backfill material and rock strata induced by ...
WhatsApp: +86 18221755073Jixiong Zhang, Cunli Zhu, Dan Ma & Peng Huang. 618 Accesses. 10 Citations. Explore all metrics. Abstract. The compressive deformation of backfill …
WhatsApp: +86 18221755073The scope of the process mining implementation is the material movement starting from good receipt until it is issued from the warehouse. A control flow …
WhatsApp: +86 18221755073The aim of this study is to obtain movement laws of overlying strata above a fully mechanized coal mining face backfilled with gangue and solve the problem of surface subsidence during coal mining ...
WhatsApp: +86 18221755073Li, M., Yan, Y., Dai, H. & Zhang, Z. Study on rock and surface subsidence laws of super-high water material backfilling and mining technology: A case study in Hengjian coal mine. Sustainability 15 ...
WhatsApp: +86 18221755073A new Australian technology roadmap outlines how copper producers can embrace innovation to reduce greenhouse gas emissions at mines. The Material Movement study warns mine waste operating …
WhatsApp: +86 18221755073Many scholars have conducted exploratory research studies on the strata movement rule of deep mining areas with the middle hard overburden.
WhatsApp: +86 18221755073Transportation is an essential activity in every mining operation. The core of the mining process consists of moving material, first usually in the form of broken rock taken from the earth's crust and then potentially from intermediate stockpiles to the rest of the activities that transform the material both physically and chemically to produce …
WhatsApp: +86 18221755073Manual material handling ranges from movement of raw material, work in progress, finished goods, rejected, scraps, packing material, etc. These materials are of different shape and sizes as well as weight. Material …
WhatsApp: +86 182217550733. Train and Empower Employees. Provide comprehensive training to your workforce on safe and efficient manufacturing material handling techniques. Empower them to identify and report potential ...
WhatsApp: +86 18221755073In this article [This article is prerelease documentation and is subject to change.] The Microsoft Power Automate Process Mining feature offers task mining and process mining capabilities to help you better understand your business processes, so that you can optimize them. Dynamics 365 Supply Chain Management offers a Warehouse …
WhatsApp: +86 18221755073Aiming at the problem of strong mining pressure in the near shallow buried and super-large mining height face, and considering the first 108 working faces in Jinjitan Coal Mine as the engineering background, the movement pattern and pressure distribution characteristics of the overlying rock layer on the 8.2 m fully mechanized mining face …
WhatsApp: +86 18221755073Abstract. Mining is very vital to the production of goods, services and infrastructure; it advances the quality of lives in the society.
WhatsApp: +86 182217550731. Introduction. The mining waste rock is inevitable during the coal mining operations and it accounts for 10 %–15 % of the Run of Mine production (Zhang et al., 2019; Li et al., 2022; Fan et al., 2014).It is estimated that the accumulated waste rock in China is over 6 billion tons forming over 2600 big scale waste dump occupying over …
WhatsApp: +86 18221755073This paper provides a review of base and precious metal run-of-mine (ROM) pre-crusher stockpiles in the mining industry, and demonstrates how to build a spatial model of a large long-term...
WhatsApp: +86 18221755073The application of USLCB in the Gonggeyingzi Mine is taken as a case study with roof movement behavior being monitored over a single mining cycle, as well as over multiple mining cycles of ...
WhatsApp: +86 18221755073This paper attempts to investigate the viability of implementing process mining to model supply chain process through real case study of an international …
WhatsApp: +86 18221755073Fully mechanized coal mining and backfilling technology with gangue, fly ash and losses etc. changes the overlying strata movement characteristics and strata behavior law in the fully mechanized coal mining and backfilling longwall face (FMCMBLF). Based on the similar theory, a model of the overlying strata movement in FMCMBLF is …
WhatsApp: +86 18221755073attention of many scholars. Process mining technique [7] emerges to serve such pur-pose. Process mining is a technique used to explore the business processes of a company based on the event logs of information systems being used in the company. Material Movement Analysis for Warehouse Business Process Improvement 117
WhatsApp: +86 18221755073In mining safety and other fields, similar material simulation is the main research method to study the movement and deformation of rock formation and ground surface.
WhatsApp: +86 18221755073Caving mining method could lead to massive waste rocks hauled to surface while leaving a large void in underground. This would eventually result in the surface subsidence and damage to the environment and surface infrastructures. In this study, we proposed three different backfilling methodologies to minimise the surface subsidence …
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