Results 71 to 80 of about 3,569 (218)
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 +7 more
wiley +1 more source
Surface Movement and Deformation Law in Downward Mining of Complex Geomorphology
To study the law of surface movement and deformation in downward mining under complex landform conditions, combined with the engineering geological conditions of a coal mine in Shanxi Province, a combination method of theoretical analysis and FLAC3D ...
DONG Cancan, LYU Yiqing, LIU Zhihui, ZHENG Shaoduo
doaj +1 more source
Investigating the differential impact of mining stress on roadways, we find that in horizontally stressed environments, the inner surrounding rock exhibits more pronounced macro‐meso damage compared to the outer side. ABSTRACT The control of surrounding rocks in dynamic pressure roadways has consistently been one of the challenging predicaments in the ...
Fan Lei +4 more
wiley +1 more source
Limit Support Pressure of Tunnel Face in Multi-Layer Soils Below River Considering Water Pressure
This paper presents a method to determine the limit support pressure of tunnel face in multi-layer soils below river considering the water pressure. The proposed method is based on the 3D Terzaghi earth pressure theory and the wedge theory considering ...
Liu Weiping +3 more
doaj +1 more source
Research on support technology of rail haulage roadway of mining area
In view of problems of simple indicator selection, big calculation error, complicated testing process existed in current bolt support design methods, stability classification of surrounding rock of roadway was determined by field investigation and ...
LIN Na, SUN Luo
doaj +1 more source
This study investigates the coupled thermo‐mechanical behavior of granite during heating and cooling through a combination of laboratory tests and finite element analysis. The thermal conductivity, mineral composition, mass loss rate, micro‐crack observation, and thermal fracture characteristics of granite under various temperature conditions are ...
Rui Pang +8 more
wiley +1 more source
Failure Mechanism of Asymmetric Large Deformations Under Repeated Mining in Roadways
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 +3 more
wiley +1 more source
ABSTRACT This study addresses the challenges of deformation failure and the difficulty in controlling the surrounding rock in the 2453 floor roadway of a coal mine in Hunan Province, influenced by mining activities. Conducting an in‐depth investigation into the evolution law of the principal stress and stability control technologies for the surrounding
Shihai Shu +6 more
wiley +1 more source
Soil properties of each layer in the FLAC3D model.
Soil properties of each layer in the FLAC3D model.
Da Peng (10726651) +4 more
core +1 more source
A Nonlinear Creep Model of Rock Salt and Its Numerical Implement in FLAC3D
Creep characteristics are integral mechanical properties of rock salt and are related to both long-term stability and security of rock salt repository. Rock salt creep properties are studied in this paper through employing combined methods of theoretical
Xin Yang, Xinrong Liu, Junbao Wang
core +1 more source

