Results 71 to 80 of about 7,653 (230)

Experimental and Theoretical Investigation on the Progressive Breaking Law of Thick and Hard Rock Strata in Deep Mining

Energy Science &Engineering, Volume 14, Issue 4, Page 1881-1902, April 2026.
This work reveals the “C‐Y,” double “Y,” “π,” and “Y” fracture modes of thick, hard strata and their progressive breaking process (O‐F‐R/S mode), providing a theoretical basis for controlling strong ground pressure in deep mining. ABSTRACT In response to the dynamic hazards caused by the fracture of thick‐hard strata in deep mining, this study ...
Meilu Yu, Jianping Zuo
wiley   +1 more source

Failure Characteristic and Stability Control of Gob‐Side Entry Retention With Narrow Roadside Filling Wall

Energy Science &Engineering, Volume 14, Issue 4, Page 2137-2152, April 2026.
A novel collaborative control technology of gob‐side entry retention with narrow roadside filling wall is proposed, wherein anchoring end of anchor cable must penetrate the boundary line of stress peak (plastic zone). ABSTRACT Gob‐side entry retention represents a major technological innovation in the history of coal mining, offering numerous ...
Wenxu Liang, Wei Fu, Ziwen Liu
wiley   +1 more source

Failure characteristic and fracture evolution law of overburden of thick coal in fully mechanized sub-level caving mining [PDF]

, 2017
In mining process, the height of water flowing fractured zone is important significance to prevent mine of water and gas, in order to further research the failure characteristic of the overlying strata.
Fan, Cunhui, Qin, Qirong, Wang, Xiaolei
core   +1 more source

Study on the Energy Evolution and Stability of Roadway Surrounding Rock Under the “Simultaneous Mining–Driving” Condition

Energy Science &Engineering, Volume 14, Issue 4, Page 2225-2247, April 2026.
Based on theoretical analysis, the energy‐evolution behavior of the surrounding rock at various depths on the solid‐coal side of the 221303 material roadway during the “advancing‐toward‐mining” process was first clarified. Numerical simulations were then performed to validate and elaborate on the theoretical results.
Wei Zhang, Peilin Gong, Kang Yi, Guang Wen, Libin Bai, Lizhu Liu, Chen Gong, Peng Li   +7 more
wiley   +1 more source

Goaf risk prediction based on IAOA–SVM and numerical simulation: A case study

Underground Space
In regard to goaf risk prediction, due to the low accuracy and single prediction method, this study proposes a method that combines the improved arithmetic optimization algorithm (IAOA) – support vector machines (SVM) with GoCAD–FLAC3D numerical ...
Mingliang Li, Kegang Li, Yuedong Liu, Shunchuan Wu, Qingci Qin, Rui Yue   +5 more
doaj   +1 more source

Modeling of gas circulation in the goaf of retreat faces/ [PDF]

, 1997
International audienceFrench coal mines are deep, gassy and prone to spontaneous combustion. The main technique used for mining at Houilleres du Bassin de Lorraine (HBL) consists in retreat faces, mainly as a consequence of strata pressure at a current ...
Carrau, André, Pokryszka, Zbigniew, Saraux, Eric, Tauziède, Christian   +3 more
core   +1 more source

Failure mechanism of the coal wall at the working face based on an eccentric compression mechanical model

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 127-143, March 2026.
In this study, the nonuniform distribution of the bearing pressure in front of the coal wall has been revealed based on in situ monitoring data and numerical simulation results. Therefore, an eccentric compression mechanical model of the coal wall was established to study the deformation and failure characteristics of a coal wall. The slenderness ratio
Maolin Tian, Jiabao Wang, Changsheng Wang, Shijie Sun, Lijun Han, Qingbin Meng, Sunhao Zhang   +6 more
wiley   +1 more source

Stress analysis of crack characteristic of anthracite under dynamic loading

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 56-65, March 2026.
In this article, the dynamic compression test of anthracite under five strain rates is carried out, the evolution law of three kinds of crack characteristic stress is analyzed, and a prediction model of the crack characteristic stress threshold considering the strain rate effect is established. Then, the rationality of crack characteristic stress under
Yun Bai, Feng Gao, Ning Luo, Zhizhen Zhang, Yue Niu, Shanjie Su   +5 more
wiley   +1 more source

An Approach for Estimating Underground-Goaf Boundaries Based on Combining DInSAR with a Graphical Method

Advances in Civil Engineering, 2020
The goaf left behind after mining has the potential to induce serious geological disasters due to the damaged internal structure of the rock. Estimating the boundary of the underground goaf can effectively control the occurrence of such disasters ...
Pu Bu, Chaokui Li, Mengguang Liao, Wentao Yang, Chuanguang Zhu, Jun Fang   +5 more
doaj   +1 more source

Failure Mechanism of Asymmetric Large Deformations Under Repeated Mining in Roadways

Energy Science &Engineering, Volume 14, Issue 3, Page 1195-1212, March 2026.
Principal stress‐evolution diagram at different advance positions of 42205 working face. ABSTRACT To address the challenge of controlling severe asymmetrical deformation in roadways subjected to repeated mining, this study (i.e., based on the engineering context of the Buertai Coal Mine) investigated the characteristics of the regional stress field in ...
Ai‐Rong Wang, Tao Peng, Kang Zhou, Chong‐Yu Song   +3 more
wiley   +1 more source