International Journal of Rock Mechanics and Mining Sciences, Год журнала: 2024, Номер 184, С. 105956 - 105956
Опубликована: Ноя. 15, 2024
Язык: Английский
Scientific Reports, Год журнала: 2025, Номер 15(1)
Опубликована: Апрель 22, 2025
In slope stability analysis, identifying the critical slip surface has always been a complex challenge. This study proposes method to determine of heterogeneous slopes while accounting for anisotropy. is grounded in generalized soil anisotropic constitutive model and establishes global equilibrium framework. It integrates optimization techniques employs well-established Morgenstern-Price formulate objective function. The reliability, applicability, are demonstrated through comparative analysis with results two classical cases improved log-spiral limit method. Additionally, investigates impact anisotropy-related parameters on slopes, providing new insights into how anisotropy influences failure mechanisms.
Язык: Английский
Процитировано
0
Engineering Fracture Mechanics, Год журнала: 2025, Номер 322, С. 111125 - 111125
Опубликована: Апрель 23, 2025
Язык: Английский
Процитировано
0
Scientific Reports, Год журнала: 2025, Номер 15(1)
Опубликована: Май 9, 2025
The deposition processes of geotechnical materials are inherently complex, resulting in significant spatial variability soil and rock properties. This study proposes a probabilistic framework applicable to braced excavations composite soil-rock layers, designed quantitatively evaluate the impact on these explore its potential implications. integrates Latin Hypercube Sampling, Monte Carlo, finite difference methods. foundation pit excavation for Qilu Hospital serves as case illustrate approach, beginning with deterministic assessment investigate ground settlement behavior environment. Subsequently, evaluates influence two critical factors surface settlement: scale fluctuation random fields Young's modulus's coefficient variation (COV). analysis provides insight into mechanisms conditions. In contrast, analysis, which incorporates fields, demonstrates that exerts considerable both stability pit. particular, an increase affects range values, while variations COV have probability failure distribution outcomes within
Язык: Английский
Процитировано
0
International Journal of Rock Mechanics and Mining Sciences, Год журнала: 2024, Номер 182, С. 105876 - 105876
Опубликована: Авг. 28, 2024
Язык: Английский
Процитировано
2
Computers and Geotechnics, Год журнала: 2024, Номер 176, С. 106747 - 106747
Опубликована: Сен. 13, 2024
Язык: Английский
Процитировано
2
Applied Sciences, Год журнала: 2024, Номер 14(23), С. 11461 - 11461
Опубликована: Дек. 9, 2024
When excavating tunnels and underground openings with the drill-and-blast method, minimizing excavation overbreak is vital, as it reduces costs associated stability, mucking, rock support. Overbreak in excavations not only causes safety concerns but also increases cost of construction completion time. This paper proposes a contour blasting design which parameters are optimized based on rock’s structural properties. Numerical modeling was used to identify possible damage zones change seismic load due blasting. The results were input for proposed low-brisance explosive. Experimental tests conducted at Akbakai mine, located Kazakhstan, performance examined. compared standard method. indicated that cross-section conventional method varied between 10.5 12.1 m2, indicating an 17 34%. However, suggested blasting, less than 13%. It concluded charging boreholes explosives effective reducing excessive explosive loads massif, can improve profitability mining operations.
Язык: Английский
Процитировано
1
Applied Sciences, Год журнала: 2024, Номер 14(24), С. 11626 - 11626
Опубликована: Дек. 12, 2024
In order to address the issue of limited excavation footage in drilling and blasting a water diversion tunnel with cross-section approximately 10 m2, which is unable meet demands rapid construction, method combining long short straight-hole cutting was proposed based on theories elastic mechanics, craters, explosive gas stress waves. A mechanical model established elucidate parameter design cavity formation principle combined cutting. Numerical simulation field tests were employed analyze rock-breaking process cutting, view comparing effect differences between traditional inclined method. The research results indicate that during uncharged portion deep hole can serve as an empty subsequent shallow hole. concentration at wall superposition reflected incident waves enhance hole, enhancement being influenced by diameter distance it preferential detonation provide smaller resistance line free surface for detonation, creating favorable conditions rock fragmentation blasting, making easier area be thrown out increasing utilization rate blast holes. shape formed strip-shaped cube, its volume spacing each group mass damage most severe vertical direction, while center upper lower edges relatively weaker. optimize energy, essential select appropriate comparison cuts, implementation holes has been observed result greater extent consumption. These findings reference point efficient construction small-section engineering, well cut reduced
Язык: Английский
Процитировано
0
Mathematics, Год журнала: 2024, Номер 12(22), С. 3500 - 3500
Опубликована: Ноя. 9, 2024
A scientific and reasonable microseismic monitoring sensor network is crucial for the prevention control of rockmass instability disasters. In this study, three feasible layout schemes Sanshandao Gold Mine were proposed, comprehensively considering factors such as orebody orientation, tunnel stope distributions, blasting excavation areas, construction difficulty, maintenance costs. To evaluate validate effectiveness networks, layers seismic sources randomly generated within network. Four levels random errors added to calculated arrival time data, classical Geiger localization algorithm was used locating validation. The distribution area analyzed. results indicate that when data are accurate or error between 0% 2%, scheme 3 considered most suitable layout; 2% 10%, 2 optimal layout. These research can provide important theoretical technical guidance design systems in similar mines projects.
Язык: Английский
Процитировано
0
International Journal of Rock Mechanics and Mining Sciences, Год журнала: 2024, Номер 184, С. 105956 - 105956
Опубликована: Ноя. 15, 2024
Язык: Английский
Процитировано
0