Floor Heave Mechanism and Anti-Slide Piles Control Technology in Deep and Large-Span Chamber [PDF]
Applied Sciences, 2021 Based on plastic limit analysis, the deformation and fracture mechanism of the floor in the large-span chambers of deep mines are discussed and a similarity model test is carried out to verify the reliability of the theoretical analysis. The results show
Jian Shi, Desen Kong
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Floor Heave Mechanism of Gob-Side Entry Retaining with Fully-Mechanized Backfilling Mining [PDF]
Energies, 2017 Serious floor heave in gob-side entry retaining (GER) with fully-mechanized gangue backfilling mining affects the transportation and ventilation safety of the mine. A theoretical mechanical model for the floor of gob-backfilled GER was established.
Peng Gong +3 more
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Mechanics Model of Floor Heave: Case Study on Thin Coal Seam with Soft Roof and Floor
Applied Sciences, 2023 The fully mechanized caving roadway’s floor heave has a significant impact on the stability of the narrow coal pillars, the filling body next to the roadway, as well as the entire roadway.
Peng Huang +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]
Scientific ReportsWeakly cemented soft rock goaf-side entry, as a typical extraction entry, faces the characteristics of low Surrounding Rock strength and water-induced softening.
Fenghai Yu +3 more
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Floor heave mechanism in water-rich soft rock roadways and a DS-IBA control approach
Geomatics, Natural Hazards & Risk, 2022 Severe floor heave in underground soft rock roadways heavily affects mine safety and production efficiency. In the present study, the context of the Shanghaimiao mining area is analyzed as the research object.
Wenli Zhai +5 more
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Mechanism and control of floor heave in two entry retained roadways using dense boreholes [PDF]
Scientific ReportsThis 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
Qiang Xu +5 more
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Study on the floor heave mechanism and control technology for the gob-side roadway in the stopping mining area of thick coal seam [PDF]
Scientific ReportsDue 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 ...
Xiaobo Hao +8 more
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Physical model study on the mechanism of floor heave for the deep-buried roadway excavated in soft rock of gently inclined thin strata [PDF]
Scientific ReportsStrata structure is an important factor affecting floor heave of deep soft rock roadway, however, the mechanism of floor heave induced by the rock structure has not been fully understood, so it is still necessary to study the floor heave of deep-buried ...
Feng Chen +5 more
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Research on mechanism and control technique of floor heave in deep soft rock roadway at Banji Coal Mine [PDF]
Scientific ReportsAiming 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 ...
Xun Zhang +6 more
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