Results 111 to 120 of about 934 (182)

Bed‐scale quantitative discrimination of hyperpycnites from intrabasinal turbidites—Results from a channelised slope system in the Upper Carboniferous Westward Ho! Formation, United Kingdom

Sedimentology, Volume 73, Issue 5, Page 1750-1798, August 2026.
ABSTRACT Features considered indicative of hyperpycnites and intrabasinal turbidites overlap. Outcrop study presented here suggests that the Westward Ho! Formation forms an 800 m high deepwater‐slope system dominated by hyperpycnites. Taking this unit, and other successions where hyperpycnites have been described, as having been deposited solely from ...
Tony Reynolds
wiley   +1 more source

Analysis of the development height of the “two zones” and separation layers in overburden strata under repeated mining of close distance coal seams

Discover Applied Sciences
Regarding the failure of overburden strata and the development height of the “two zones” under repeated mining in close-distance coal seams, and to prevent various safety incidents such as roof water inrush and spontaneous combustion in goafs caused by ...
Zhuoran Kang, Daming Yang
doaj   +1 more source

Stress superposition characteristics and roof structure control of recovery room in close distance coal seam

Meitan kexue jishu
The stress disturbance and complex roof situation of the pre excavation recovery room of the close range coal seam group result in severe damage to the surrounding rock of the tunnel during the construction of the recovery room, making it difficult to control the surrounding rock.
Zizhao FU, Jianbiao BAI, Shuai YAN, Dong ZHANG, Xiaodong ZHENG, Guangjun SUN, Yongjie WANG   +6 more
openaire   +1 more source

Disaster-causing mechanism and control technology of interlayer rock breakage in gently inclined close distance coal seams mining. [PDF]

Sci Rep
Yuchi X, Du X, Shu P, Yu L, Lei W, Yang W, Zhang Z.   +6 more
europepmc   +1 more source

Pilot tests of continuous gas extraction with improved L-shaped wells from mining and goaf areas. [PDF]

Sci Rep
Zhang J, Qin Y, Li G, Ma H, Li G, Li G, Liu T, Li J, Ji C, Guo M.   +9 more
europepmc   +1 more source

Study on reasonable position of mining roadway under repeated mining overburden structure in shallow buried close distance coal seam: A case study. [PDF]

Sci Rep
Miao K, Tu S, Tu H, Tang L, Zhao H, Guo B, Lv K, Ma Y.   +7 more
europepmc   +1 more source

Study on the mining stress field distribution law beneath isolated coal pillar in close coal seam and reasonable location of the roadway. [PDF]

Sci Rep
Shu S, Wang W, Liu C, Yuan C, Ma Y, Tian X, Du R, Ge S.   +7 more
europepmc   +1 more source

Failure mechanism of surrounding rock and synergistic control of strong support-strong pressure relief for lower-seam roadways in close-distance coal seam groups. [PDF]

Sci Rep
Yu S, Suo Y, Cai C, Feng J, Huo X, Hu J, Ren J.   +6 more
europepmc   +1 more source

Study on the design of section coal pillars and support technology for roadways along gob in inclined thick coal seams. [PDF]

Sci Rep
Jiang B, Ren X, Li W, Gu S, Guo Z, Zhang H.   +5 more
europepmc   +1 more source

Study on the evolution law of overlying strata movement inducing surface subsidence under different mining sequences of multiple coal seams: a case study. [PDF]

Sci Rep
Chen Y, Wu F, Liu C, Lu Y, Hu J.
europepmc   +1 more source