Zobrazeno 1 - 10
of 158
pro vyhledávání: '"filling body"'
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
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:
Meitan xuebao, Vol 49, Iss S1, Pp 167-181 (2024)
The stability of cemented tailing filling body plays a core role in backfill mining as bearing body. In recent years, mineral processing wastewater is reused for filling mining to reduce a series of problems such as environmental pollution in some mi
Externí odkaz:
https://doaj.org/article/5aa442e10f054201a5b1ba37fe1fedcd
Publikováno v:
矿业科学学报, Vol 9, Iss 3, Pp 426-434 (2024)
As the core unit of backfill mining method, the strength of backfill is an important indicator to ensure safe mining. Na-based bentonite features a high methylene blue adsorption capacity and green compressive strength, making it a high-quality addit
Externí odkaz:
https://doaj.org/article/add4355a5a6b4e679384c6661fab9272
Publikováno v:
Meitan xuebao, Vol 49, Iss 1, Pp 36-46 (2024)
Safe, high-efficient, green and low-carbon mining is an eternal theme of coal mines. Near zero rock burst, near zero ecological damage and low-carbon, zero-carbon and carbon-negative green mining will become new requirements to ensure China's energy
Externí odkaz:
https://doaj.org/article/50eb2da7dba141d7b8f892e09c738fd8
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 6, Pp 30-41 (2023)
After the mining of inclined coal seam, the roof falling gangue of goaf moves downward to fill the goaf due to gravity, which makes the strata behavior law of gob-side entry retaining in inclined coal seam different from that in horizontal coal seam.
Externí odkaz:
https://doaj.org/article/2e505668bc594d4ead31606f68d289d8
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 5382-5399 (2023)
To study the structural parameter influence on the creep mechanical properties of surrounding rock and filling body (SR-FB) composite specimens, reveal their creep energy change laws and damage evolution characteristics, the composite specimens with
Externí odkaz:
https://doaj.org/article/28d6019c2cad47fe9cff1b1d076160e6
Publikováno v:
Meikuang Anquan, Vol 53, Iss 11, Pp 70-75 (2022)
In order to reveal the influence of loading rate on the deformation and failure of cemented waste rock filling body, uniaxial compression tests of cemented waste rock filling body under five groups of loading rates were carried out, and the changes o
Externí odkaz:
https://doaj.org/article/54c464e680f847b2ad8f44818deac8ac
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.