Results 1 to 10 of about 385 (113)
Analysis of unstable block by discrete element method during blasting excavation of fractured rock mass in underground mine [PDF]
Heliyon, 2023 During the excavation process in fractured rock masses in underground mines, blasting excavation can cause dangerous block collapses on surrounding rock.
Zhongyuan Gu, Miaocong Cao
doaj +2 more sources
Development a practical method for calculation of the block volume and block surface in a fractured rock mass [PDF]
Scientific ReportsThis study introduces a practical method for calculating the volume and surface area of blocks formed by the intersection of three persistent joint sets in a fractured rock mass.
Alireza Shahbazi +3 more
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Ain Shams Engineering JournalThe geometric statistical characteristics of rock mass discontinuities, such as mean trace length and intensity, cannot be measured directly and require the use of statistical tools (such as sampling lines, sampling windows, and drilling) for analysis ...
Zhongyuan Gu
exaly +3 more sources
Spatio-temporal evolution law of gas-temperature coupling field in "110 method" goaf and prevention of spontaneous combustion. [PDF]
PLoS ONE, 2023 To investigate the distribution characteristics of spontaneous combustion disaster (SCD) zones in the goaf of "110" mining method with U + L ventilation system and formulate corresponding fire prevention measures, enclosed coal oxidation experiments were
Song Wei +6 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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Risk Visualization in Mining Processes Based on 3Dmine-3DEC Data Interoperability
Applied Sciences (Switzerland)The use of geological models for mine production scheduling, planning, and design is a common aspect of current digital mine construction. Establishing a mapping relationship from digital geological resources to mining process simulation and then to risk
Cong Ma
exaly +3 more sources
From Measured In Situ Stress to Dynamic Simulation: A Calibrated 3DEC Model of a Rock Quarry
Applied Sciences (Switzerland)Accurately reproducing the mechanical and dynamic behavior of fractured rock masses remains a key challenge in rock engineering, especially in marble quarry environments where discontinuity networks, excavation geometry, and topographic effects induce ...
Riccardo Salvini, Vivien de Lúcia
exaly +3 more sources
地质科技通报, 2021 The anti-dumping layered rock slope is a common type of slope, which has various deformation and failure modes, complicated mechanics mechanism and many influencing factors.In order to reveal the influence law of the geometric characteristic parameters ...
Shaoping Huang +4 more
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Meitan kexue jishu, 2023 In order to study the dynamic evolution law of the pressure relief gas reservoir in the mining of extra-thick coal seams, the 3DEC numerical simulation software was used to analyze the stress and displacement distribution law of the overburden rock ...
LIN Haifei +5 more
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地质科技通报, 2022 To study the dynamic amplification effect of slope surfaces under the action of strong earthquakes, a three-dimensional model was established using a rocky slope in Mian County, Shaanxi Province, as an example.
Guojun Cai +3 more
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