Zobrazeno 1 - 10
of 74
pro vyhledávání: '"slurry diffusion"'
Publikováno v:
Shanghai Jiaotong Daxue xuebao, Vol 58, Iss 7, Pp 1067-1074 (2024)
Slurry diffusion is the key factor affecting the resistance reduction of pipe jacking grouting. Therefore, this paper establishes a three-dimensional numerical analysis model of pipe jacking, introduces a diffusion ring to simulate the slurry diffusi
Externí odkaz:
https://doaj.org/article/0f892d624a7549e3b83f3581890b0ba9
Autor:
Yan GUO, Herong GUI, Huang HONG, Yongqing CHEN, Xiaoyu SUN, Rongjie HU, Xiangdong GUO, Qun ZHAO, Yanan DAI, Hao YU, Jun LI, Liang SUN, Chuan GAO
Publikováno v:
Meitan xuebao, Vol 49, Iss 4, Pp 2045-2056 (2024)
In recent years, to liberate coal resources from high pressure limestone water on the coal seam floor, North China Coalfields have generally adopted surface directional drilling technology to carry out regional grouting reinforcement and transformati
Externí odkaz:
https://doaj.org/article/104044693907460e9f1e5662bb0d0a27
Autor:
Minglei ZHAI, Haibo BAI
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 7, Pp 158-167 (2024)
The deep mining process of North China type coalfields is highly threatened by the threat of water damage from the floor limestone aquifer. By arranging grouting holes reasonably to inject a large amount of slurry into the aquifer that directly threa
Externí odkaz:
https://doaj.org/article/7006a5053b384fe19c4c6bd391fddfa5
Publikováno v:
Meikuang Anquan, Vol 55, Iss 3, Pp 181-189 (2024)
In view of the loose, broken and serious deformation of the surrounding rock of the connection roadway in the south of 730 mining area of Xinhe Mining Company, the influence of different grouting parameters on the slurry diffusion was discussed by us
Externí odkaz:
https://doaj.org/article/ada8f24346ed40408e0d15f7ee2b1e88
Publikováno v:
Meikuang Anquan, Vol 54, Iss 10, Pp 168-175 (2023)
In order to liberate the shallow quaternary loose aquifer coal pillar resources, taking the 1010-1 working face of the first mining area of Wugou Coal Mine as the test object, the grouting reinforcement test of quaternary loose aquifer and the weathe
Externí odkaz:
https://doaj.org/article/5380a1e528e941f097fcd7a46a649a93
Study on the Diffusion Law of Grouting Slurry at the Pile Tip of Bored Piles in Gravel Pebble Layers
Autor:
Junhu Li, Yuping Wu, Chenghui Wu, Fengpan Zhu, Quanwei Zhao, Gangping Zhang, Zihai Yan, Riqing Xu
Publikováno v:
Buildings, Vol 14, Iss 8, p 2555 (2024)
The post-construction improvement technology of bored pile tips has been widely used in the construction of gravel pebble layers, but the diffusion law of the grouting slurry remains to be revealed. To study the diffusion law of the grouting slurry a
Externí odkaz:
https://doaj.org/article/432511acf2d343b9a4d61d7ada339d57
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 7, Pp 179-186 (2023)
Directional regional grouting to transform aquifers is one of the effective ways to prevent and control mine water hazards. In order to study the diffusion law of grouting slurry in directional areas, a three-dimensional simulation test system for di
Externí odkaz:
https://doaj.org/article/1ad3cd0311c343cd9a7955db86e14dbe
Publikováno v:
Heliyon, Vol 10, Iss 6, Pp e28303- (2024)
The construction of gas extraction boreholes in soft coal seams is prone to collapse and deformation, and grouting reinforcement is one of the main methods to solve the problem of efficient sealing. However, the reasonable selection of key grouting p
Externí odkaz:
https://doaj.org/article/65690a07939048d99c7dc2622cdbd436
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
After the water inrush accident in coal mine tunnels, early-stage pouring of aggregate forms a high-resistance, low-permeability aggregate stacking, transforming the pipeline flow into percolation. In the later stage, grouting is carried out into the
Externí odkaz:
https://doaj.org/article/db5f3bbdae034585b23e09e118d47297
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 10, Pp 127-132, 159 (2023)
The main technical means for preventing and controlling karst water damage in the coal seam floor of North China type coal fields are grouting transformation of the water-bearing rock layer. Currently, the main method for testing the grouting effect
Externí odkaz:
https://doaj.org/article/f7a75fa3408045eb9b8c055d63622cc0