Zobrazeno 1 - 10
of 567
pro vyhledávání: '"gob-side entry retaining"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 11, Pp 166-175 (2024)
In order to reduce the cost of roadside filling and ensure the stability of the retained roadway system, the 150202 fully mechanized mining face of Shenlei Coal Mine is taken as the background, and the roadside filling body is made of coal gangue and
Externí odkaz:
https://doaj.org/article/c7500cd062674f4991a2619ac56d4f59
Autor:
Liang CHEN, Zhiheng CHENG, Hongbing WANG, Xin LUO, Zhenwei XU, Yanjun DONG, Wenchen LI, Peng WANG, Hongyang YU
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 10, Pp 114-126 (2024)
In order to solve the problems of wall deformation mechanism of gob-side entry retaining, unclear air leakage flow field in goaf and poor gas control effect in thick coal seam, taking 20107 working face of Qincheng Coal Mine in Shanxi Province as the
Externí odkaz:
https://doaj.org/article/37806379e4574f3c9412dce2b819bcb1
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 10, Pp 11-20 (2024)
Gob-side entry retaining technology is of great significance to improve coal recovery rate, improve roadway stress environment and ensure mine safety and efficiency. In order to solve the problem of floor heave deformation of gob-side entry retaining
Externí odkaz:
https://doaj.org/article/748aa93d2e5b4318a570dcd7e97223ed
Optimization analysis of layered materials of composite filling body beside gob-side entry retaining
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 10, Pp 21-32 (2024)
Along the hollow stay lane roadside filling body is divided into letting pressure layer and compression layer, letting pressure layer material should have the characteristics of large deformation, slow down the violent activities of the basic roof ro
Externí odkaz:
https://doaj.org/article/2611758bb8034e7a8c2379d68aa19f49
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
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 8, Pp 23-35 (2024)
The success of gangue support in roof cutting and retaining roadway depends on the evolution process of gangue side and its lateral pressure distribution. Based on the engineering background of Xinghua Coal Mine, this paper analyzes the mechanical ch
Externí odkaz:
https://doaj.org/article/2e5e0f02666248889f0d829bf6ff5181
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract The implementation of the Gob-Side Entry Retaining Mining Mode with Roof Cutting and Pressure Relief (GERRCPR) results in the gob connecting to the retaining roadway, creating an open space that causes significant air leakage and increases t
Externí odkaz:
https://doaj.org/article/c05c490c4adc4d16b9e5a5edb3560429
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 7, Pp 165-172 (2024)
Currently, research and practice on roadway floor heave mainly explore the deformation mechanism and control technology of roadway floor. The mechanical analysis of floor before and after roof cutting and pressure relief in gob-side entry retaining i
Externí odkaz:
https://doaj.org/article/5682b63375604151bf7ad1e0450586cf
Publikováno v:
Meikuang Anquan, Vol 55, Iss 7, Pp 136-144 (2024)
According to the engineering geological characteristics and production technology level of Qianyingzi Coal Mine, the stability control technology of surrounding rock of the cutting roof and pressure relief roadway is proposed. For the advanced sectio
Externí odkaz:
https://doaj.org/article/00085d527a9b41b487e50ae88ebf78ae