Results 141 to 150 of about 1,887 (217)

Study on coal drawing parameters of deeply buried hard coal seams based on PFC. [PDF]

Sci Rep
Xinlei L, Ziyuan R, Zhengzheng C, Hao R.
europepmc   +1 more source

Study on fissure development law of surrounding rock in horizontal section stope of steeply dipping coal seam group. [PDF]

Sci Rep
Panshi X, Bodi Y, Bo Z, Baofa H, Jiarui F.   +4 more
europepmc   +1 more source

Numerical Investigation of Gas Migration and Spatiotemporal Evolution in Y‑Type Ventilation Working Faces with Gob-Side Entry Retaining Using COMSOL. [PDF]

ACS Omega
Zhai Y, Yang Y, Wu L, Yang W, Liu S, Li L, Lei J.   +6 more
europepmc   +1 more source

Study on the Failure Law of Overlying Strata in Thick Coal Seam Mining under the Condition of Shallow Burial Depth, Thick Loose Layers, and Thin Bedrock. [PDF]

ACS Omega
Ren K, Li G, Zhang J, Zong B, Yan G, Liu H, Guo G, Wang B, Wang Y.   +8 more
europepmc   +1 more source

Influences of coal-rock interface morphology's spatiotemporal evolutionary characteristics on top coal caving law. [PDF]

Sci Rep
Shen Y, Yang T, Liu J, Li Y, Luo J, Zhang X.   +5 more
europepmc   +1 more source

The Mining Industries, 1899-1939: A Study of Output, Employment, and Productivity [PDF]

Harold Barger, Sam H. Schurr
core  

Periodic Fracture Model and Control of Hard Roof of Thin Coal Seam Short-wall Face: A Case Study of Zhuzhuang Coal Mine [PDF]

, 2020
Biming S, Ke G, Qi W
core   +1 more source

Study on the failure law of overlying rock under coal seam in close distance coal seam and feasibility discrimination of upward mining. [PDF]

Sci Rep
Miao Y.
europepmc   +1 more source

Research on surrounding rock control technology of roof cutting and pressure relieving for roadside filling in gob-side entry retaining of large mining height panel. [PDF]

Sci Rep
Weiyong L, Shengjun L, Yaohui S, Tao G, Wansheng M, Xiaowu Z.   +5 more
europepmc   +1 more source

Possibility of applying mechanized coal mining in the mine 'Soko', with the comparative advantages of production results and impact [PDF]

, 2014

core   +1 more source