Zobrazeno 1 - 10
of 1 733
pro vyhledávání: '"backfilling"'
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-22 (2024)
Abstract The technology of gob-side entry retaining (GER) has the advantages in terms of higher resource recovery rate and lower drivage ratio. In this study, the GER implementation in N1217 panel in Ningtiaota Coal Mine, to verify the adaptability o
Externí odkaz:
https://doaj.org/article/6d4a0e2021ec4cf89389dfc73cc1fcb3
Autor:
WEN LUO, Qingxiong WANG
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 9, Pp 31-47 (2024)
The western region is rich in coal seam resources, and the intensity of mining is high. Traditional mining methods can easily lead to the loss of water resources in aquifers, resulting in serious water shortage problems. Therefore, researching water
Externí odkaz:
https://doaj.org/article/fbdbd8721ce84ca6b9b38dfd66bee3e5
Autor:
Keke Xing, Jingyi Cheng, Zheng Zhen, Zhijun Wan, Zepeng Han, Wanzi Yan, Jiakun Lv, Yifei Yang
Publikováno v:
Heliyon, Vol 10, Iss 18, Pp e37441- (2024)
Mining strip coal pillars left due to strip mining is important to resource-exhausted coal mines in eastern China. Backfilling mining is an effective means to mine strip coal pillars, which could decrease high stress and high energy release. However,
Externí odkaz:
https://doaj.org/article/434eac7d9d7340b2a552115ee3aef7cd
Autor:
Shuangming WANG, Lang LIU, Mengbo ZHU, Baoning WEI, Dengdeng ZHUANG, Huisheng QU, Wei HE, Chengcheng SHAO, Lei XIA, Jing ZHOU
Publikováno v:
Meitan xuebao, Vol 49, Iss 8, Pp 3291-3315 (2024)
The situation of coal as the stabilizer guarantee the energy safety in China cannot be changed in the short term, and it will continue to face the problems of coal resource protection and the low utilization rate of coal-based solid waste. Through in
Externí odkaz:
https://doaj.org/article/89971838d0ff42c090deb34e8c108a2f
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-20 (2024)
Abstract Bodovalle is a siderite mine located in northern Spain that is currently in the closure phase. The mine was exploited using the room-and-pillar method. Subsidence processes have occurred previously and reached the surface because of the coll
Externí odkaz:
https://doaj.org/article/3b9ff6d57697456fafc4b924592cf888
Autor:
Yuesong TANG, Wenchao SUN, Zengqiang LI, Peng CAO, Wei WANG, Xiaochen ZHENG, Fuqiang ZHANG, Mingzhen CHEN, Zhaohui WANG
Publikováno v:
Meitan xuebao, Vol 49, Iss S1, Pp 22-35 (2024)
High stress and multi faults lead to rising burst frequency in deep coal mine. Though backfilling mining serves as the most straightforward method for stress-decreasing and burst-preventing, it fails to eliminate coal burst completely. In order to de
Externí odkaz:
https://doaj.org/article/01cfe40c8a1f4b41908c451a75146bc6
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 4, Pp 38-49 (2024)
Backfilling mining is important for controlling strata movement and reducing surface subsidence and environmental damage. Insufficient sources of raw materials and high backfilling costs have become major bottlenecks, limiting the application of back
Externí odkaz:
https://doaj.org/article/0569906a46ae45c7bc80d2978fbe94ba
Publikováno v:
矿业科学学报, Vol 9, Iss 2, Pp 217-232 (2024)
Using aeolian sand(AS)for backfilling can realize local material extraction and turn waste into treasurethe, and realize coordination of green mining and AS control.The AS filling mining is mainly applied to the backfilling of goaf under Highway, bac
Externí odkaz:
https://doaj.org/article/23d62d494c714d519e9f90e3cd5cc9ec
Publikováno v:
Meitan xuebao, Vol 49, Iss 5, Pp 2222-2230 (2024)
In response to the poor active support effect of the surface protection components in soft coal roadway and the continuous expansion of the broken range of local exposed surrounding rock, which leads to the failure of anchor rod and cables, a mesh gr
Externí odkaz:
https://doaj.org/article/2ddfdfbc06674eb5967dea90745f2d78