“Relief-Retaining” Control Technology of Floor Heave in Mining Roadway with Soft Rock: A Case Study [PDF]
Advances in Civil Engineering, 2021 The floor heave problem is one of the important factors affecting the stability and safety of surrounding rocks of roadways, especially in deep high-stress mining roadway with soft rock. The return airway of no.
Ai Chen +5 more
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The Floor Heave Mechanism and Control Technology of Gob-Side Entry Retaining of Soft Rock Floor
Sustainability, 2023 Extensive soft-rock floor heave in gob-side entry retaining considerably restricts the efficient and sustainable production of the mine. The mechanical capacities of roadway roof and floor strata are discussed through laboratory tests by taking the N2301 fully caving surface auxiliary transport gate road of the Ancient City Coal Mine in the Lu’an ...
Qi Ma, Zexin Li, Guangyuan Song
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Mechanism and control measures for floor heave in gob-side entry of weakly cemented soft rock. [PDF]
Sci RepWeakly cemented soft rock goaf-side entry, as a typical extraction entry, faces the characteristics of low Surrounding Rock strength and water-induced softening.
Yu F, Yang J, Zhou K, Liu B.
europepmc +4 more sources
Management of floor heave at Bulga Underground Operations – A case study
International Journal of Mining Science and Technology, 2019 This paper presents an overview of the floor heave management at the Glencore Bulga Underground Operations and investigates the contributing factors to the behaviour of the floor.
Serkan Saydam
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Mechanism and control technology of roadway floor heave deformation and failure under the influence of repeated mining in multiple coal seams. [PDF]
Sci RepDeformations caused by of roadway floor heave due to the repeated mining of multiple coal seams is a prominent problem in deep coal mining. This work examines roadway floor heave under the influence of repeated mining in multiple coal seams as the ...
Yuping F +3 more
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Mechanism and control of floor heave in two entry retained roadways using dense boreholes. [PDF]
Sci RepThis study addresses severe floor heave in retained entries of two-entry longwall faces through a case analysis of Chahasu Coal Mine, China. Surrounding rock deformation and failure in the 31,317 tail entry were characterized through field monitoring and
Xu Q +5 more
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Numerical analysis of floor heave control technology of combined inverted arch-floor pile
Meikuang Anquan, 2022 In order to solve the problem of floor heave control in deep soft rock roadway, based on the engineering background of the 18th floor track roadway in the south of the fourth level of Xing’an Mine, a new type of bottom heave control technology, that is ...
GUO Dongming +6 more
doaj +2 more sources
Study on the floor heave mechanism and control technology for the gob-side roadway in the stopping mining area of thick coal seam. [PDF]
Sci RepDue to the influence of the lateral abutment pressure and the protective coal pillar of the main roadway, the surrounding rock stress environment of the gob-side roadway in the stopping mining area of a thick coal seam is highly complex, making the ...
Hao X +8 more
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Research on mechanism and control technique of floor heave in deep soft rock roadway at Banji Coal Mine. [PDF]
Sci RepAiming at the severe floor heave occurring at the machine head section of the belt conveyor downhill roadway in the 1105 mining area of Banji Coal Mine, Bozhou, Anhui, a systematic investigation was conducted using mechanism analysis, numerical ...
Zhang X +6 more
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Study on the evolutionary mechanism and synergistic control technology of floor heave in deep high-stress roadways. [PDF]
Sci RepTo address floor heave control in deep high-stress roadways, this study established a slip-line field model of the roadway floor based on plastic mechanics.
Yin C +7 more
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