<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This paper takes the deep ore body of Yunnan Phosphate Group Co. Ltd, the largest open-pit chemical mining enterprise in China, as the research background, and systematically introduces the technical problems recognised by many Chinese researchers in the past eight years on the open-pit to underground mining of gently inclined thin to medium-thick ore bodies with a soft interlayer. It shows that the mining of open-pit transferred to underground is a complex engineering system, and the underground stope surrounding rock and overlying strata present a nonlinear failure process. Through mining process innovation, mining method innovation and improvement, research was undertaken on new processes and technologies for phosphorus mining under complex conditions. The relevant research results not only have important economic value and academic significance for Yunnan Phosphate Group Co. Ltd. but also have important guidance and impetus to the exploitation of a large number of similar phosphate resources in China.</p>
</abstract>

This paper takes the deep ore body of Yunnan Phosphate Group Co. Ltd, the largest open-pit chemical mining enterprise in China, as the research background, and systematically introduces the technical problems recognised by many Chinese researchers in the past eight years on the open-pit to underground mining of gently inclined thin to medium-thick ore bodies with a soft interlayer. It shows that the mining of open-pit transferred to underground is a complex engineering system, and the underground stope surrounding rock and overlying strata present a nonlinear failure process. Through mining process innovation, mining method innovation and improvement, research was undertaken on new processes and technologies for phosphorus mining under complex conditions. The relevant research results not only have important economic value and academic significance for Yunnan Phosphate Group Co. Ltd. but also have important guidance and impetus to the exploitation of a large number of similar phosphate resources in China.

Research progress in the mining technology of the slowly inclined, thin to medium thick phosphate rock transition from open-pit to underground mine

State Key Laboratory of Safety and Health in Metal Mines

Jiangxi University of Science and Technology

Jiangxi Key Laboratory of Mining Engineering

Department of Civil and Environmental Engineering

Applied Mathematics and Nonlinear Sciences

This work is licensed under the Creative Commons Attribution 4.0 International License.

This paper takes the deep ore body of Yunnan Phosphate Group Co. Ltd, the largest open-pit chemical mining enterprise in China, as the research background, and...

Research progress in the mining technology of the slowly inclined, thin to medium thick phosphate rock transition from open-pit to underground mine

Published Online: May 25, 2021

Page range: 319 - 334

Received: Dec 24, 2020

Accepted: Jan 31, 2021

DOI: https://doi.org/10.2478/amns.2021.2.00017

Keywords
gently inclined thin to medium-thick phosphate rock, convert from open-pit to underground mining, gently inclined thin to medium-thick ore bodies with soft interlayer, new mining technology and new technology

© 2021 Xiaoshuang Li et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Research progress in the mining technology of the slowly inclined, thin to medium thick phosphate rock transition from open-pit to underground mine

Published Online: May 25, 2021

Page range: 319 - 334

Received: Dec 24, 2020

Accepted: Jan 31, 2021

DOI: https://doi.org/10.2478/amns.2021.2.00017

Keywordsgently inclined thin to medium-thick phosphate rock, convert from open-pit to underground mining, gently inclined thin to medium-thick ore bodies with soft interlayer, new mining technology and new technology

© 2021 Xiaoshuang Li et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
gently inclined thin to medium-thick phosphate rock, convert from open-pit to underground mining, gently inclined thin to medium-thick ore bodies with soft interlayer, new mining technology and new technology