Zobrazeno 1 - 10
of 353
pro vyhledávání: '"ground stress"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract To accurately understand the deformation behavior of surrounding rock in the jiugongshan No.2 high ground stress tunnel and optimize construction parameters for improved efficiency, on-site monitoring was used to gather data on rock deformat
Externí odkaz:
https://doaj.org/article/d339d30302394242a704ceaa06f5440e
Autor:
Lue FANG, Sitao ZHU, Shidong LI, Fangfang WANG, Zhen KONG, Guangfei ZHOU, Tengfei YUAN, Leilei ZHONG, Guanglin PENG
Publikováno v:
Meikuang Anquan, Vol 55, Iss 7, Pp 110-117 (2024)
Based on the rock burst occurrence of the south water sump connecting roadway in the seventh mining area of Zhaolou Coal Mine, the mechanism of creep instability rock burst of high stress isolated coal immersed in water was studied by means of theore
Externí odkaz:
https://doaj.org/article/1028f9c48bfc4a7689eacfd534901c61
Autor:
Yang Guang, Zhao Hongbao
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 6, Pp 2591-2615 (2024)
Abstract To investigate the effects of different crustal stresses on the stability of gas extraction boreholes, several equations were deduced. Additionally, the coupled flow‐solid model of gas extraction was constructed, given the elasticity−pla
Externí odkaz:
https://doaj.org/article/70e6d572623247c8ba150cd72a237b2d
Publikováno v:
Youqi dizhi yu caishoulu, Vol 31, Iss 3, Pp 54-62 (2024)
The tight sandstone reservoirs are deeply buried and strongly influenced by diagenetic processes such as mechanical compaction， dissolution， and metasomatism. Therefore， their lithological characteristics are complex. As the exploration and dev
Externí odkaz:
https://doaj.org/article/fb82cbb5e57b4e79a07c83d2693ba1a2
Autor:
Youzhi Zheng, Jun Zhao, Xihui Hu, Zhilin Li, Zhanwu Zhang, Ziming Guo, Yu He, Lang He, Yong Chen, Yi Xie
Publikováno v:
Journal of Engineering and Applied Science, Vol 71, Iss 1, Pp 1-19 (2024)
Abstract Deep shale gas development has great potential, but the frequent occurrence of shale gas well casing change problems triggered by geological factors seriously restricts deep shale gas development. In order to investigate the influence of geo
Externí odkaz:
https://doaj.org/article/b82c7f64947d4c63adde66c9c721ea00
Publikováno v:
Meikuang Anquan, Vol 55, Iss 2, Pp 41-47 (2024)
In order to classify the types of hydraulically fractured coal and rock seam combinations, the No.3 coal seam in Yuwu wellfield of Lu’an Mining area are taken as the research object in this paper, and the lithology and mechanical characteristics of
Externí odkaz:
https://doaj.org/article/270f24fb64cb411cb547f9082f2a40cf
Publikováno v:
Dizhi lixue xuebao, Vol 30, Iss 3, Pp 473-486 (2023)
Objective The stability of underground chambers such as mine tunnels and transportation tunnels is closely related to the stress environment of the surrounding rock mass and the geological conditions of the area. Analyzing the relationship between de
Externí odkaz:
https://doaj.org/article/7f7522a0d5244da5925caa943859a089
Publikováno v:
Geoenvironmental Disasters, Vol 10, Iss 1, Pp 1-14 (2023)
Abstract Background Uneven settlement will occur as a result of the collapsible deformation of the loess strata, and the hydraulic tunnel lining structure will also fail. In this work, laterally confined compression tests were carried out on loess an
Externí odkaz:
https://doaj.org/article/1e54e32bb5eb4ef3b85c3ab8a42d5e58
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 9, Iss 1, Pp 1-15 (2023)
Abstract Estimating in-situ stress in shale oil reservoirs is critical for predicting hydraulic fracture height. However, the varied longitudinal lithology and transverse isotropy challenge the regional evaluation of ground stress. A new method based
Externí odkaz:
https://doaj.org/article/0f186ab1e0db4611b9c80159191517df
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 8, Pp 116-128 (2023)
With the increase of mining depth and intensity, the dynamic disaster of coal and gas outburst was frequent. The disaster-causing mechanism of impact force has become the main direction of current research. In order to further reveal the impact force
Externí odkaz:
https://doaj.org/article/484e82f13d00424ba5f19d6428cde3ac