Feng Ding
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Feng Ding has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Huice Jiao
Liaoning Technical University
1 shared publication - Man Wang
State Key Laboratory of Coking Coal Resources Green Exploitation, Pingdingshan 467000, China
1 shared publication - Yanan Gao
State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou, China
1 shared publication - Zehua Niu
State Key Laboratory of Coking Coal Resources Green Exploitation, Pingdingshan 467000, China
1 shared publication - Zhaofan Chen
State Key Laboratory of Coking Coal Resources Green Exploitation, Pingdingshan 467000, China
1 shared publication
Latest Publications
- Open Access
- 4 November 2024
- Published by MDPI AG in Applied Sciences
- Vol. 14 (21) , 10075
Numerical Investigation with Failure Characteristic Analysis and Support Effect Evaluation of Deep-Turning Roadways
In recent years, tunnel-boring machines (TBMs) have been widely applied in deep coal mining. Turning is an inevitable challenge in TBM tunneling, and a TBM turning roadway exhibits greater instability than a straight roadway, as engineering experience has indicated. This study aimed to explore the failure mechanism and evaluate the support performance of a deep-turning roadway. Several numerical models were established to investigate the deformation of the roadway, the stress distribution, and the failure zone of the surrounding rocks under different tunneling conditions. The results show that the tunneling depth influences the failure pattern of the turning roadway: deep tunneling with high in situ stress can cause asymmetric failure of the turning roadway, while shallow tunneling with low in situ stress does not. Moreover, the change in turning radius, namely the change in roadway geometry, does not influence the stability of the turning roadway. In addition, the support actions for both the straight and turning roadways do not differ significantly, and the amount of controlled deformation of the surrounding rocks is proportional to their natural deformation.
- 4 November 2024
- Published by MDPI AG in Applied Sciences
- Vol. 14 (21) , 10075
Open AccessNumerical Investigation with Failure Characteristic Analysis and Support Effect Evaluation of Deep-Turning Roadways
In recent years, tunnel-boring machines (TBMs) have been widely applied in deep coal mining. Turning is an inevitable challenge in TBM tunneling, and a TBM turning roadway exhibits greater instability than a straight roadway, as engineering experience has indicated. This study aimed to explore the failure mechanism and evaluate the support performance of a deep-turning roadway. Several numerical models were established to investigate the deformation of the roadway, the stress distribution, and the failure zone of the surrounding rocks under different tunneling conditions. The results show that the tunneling depth influences the failure pattern of the turning roadway: deep tunneling with high in situ stress can cause asymmetric failure of the turning roadway, while shallow tunneling with low in situ stress does not. Moreover, the change in turning radius, namely the change in roadway geometry, does not influence the stability of the turning roadway. In addition, the support actions for both the straight and turning roadways do not differ significantly, and the amount of controlled deformation of the surrounding rocks is proportional to their natural deformation.