... of the aforementioned three components in disaster assessment. The key factor such as geological, terrain, distribution of weak plane, volume, process, and landslide mechanism, and finally provide a disaster report to concerned units for the assistance in follow-up decisions. INTRODUCTION Mountains comprise around...

... ABSTRACT: The earthquake-damaged investigation found that tunnel structures crossed the active fault zone, and its affected area suffered the most severe damage. Through model tests and numerical simulations, the paper reveals the failure mechanism of the utility tunnel structure with flexible...

... ABSTRACT: Rock falls are one of the most hazardous mountain processes and can show variable failure mechanisms. Therefore, a kinematic analysis is commonly performed to assess which failure mechanisms are favoured by the structural inventory of a rock mass. However, often multiple failure...

... analysis considering geometric conditions and the definition of potential types of failure mechanisms. This provided the overview of planar, wedge and flexural toppling occurrences in specific regions of the current operation. Corrective measures and geometric recommendations are discussed, as solution...

... reservoir characterization rockface crest brazil government metals & mining geological subdiscipline figure 1 rockfall simulation australian geomechanics society differential boulder culminate cloud arkose covid pandemic restriction rockfall protection morraria urucum mechanism...

... of the rock matrix and the fracturing along weakness planes. For intact matrix: (i) the short-term response includes the main mechanisms (transversely isotropic elastic, hardening, softening and residual plastic strain, brittle-ductile transition) evidenced in laboratory investigations, (ii) the long-term...

... ABSTRACT: There has been a wide effort to develop constitutive models to aid prudent engineers or scientists in understanding materials’ behaviour in rock mechanics. Hoewever, there is still a lot of work to be done when considering time-dependent behaviour that can lead to instabilities...

... elemental composition rockshotcrete interface building material porosity mechanism 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Influence of rock crystal structure on bond strength at the rockshotcrete interface Kunze Li, Hamed Lamei Ramandi, Chengguo Zhang...

... ABSTRACT: This paper presents an investigation into Actuated Disc Cutting (ADC). The ADC is based on the undercutting mechanism and involves several cutting parameters. To enable an experimental analysis of ADC, a new lab-scaled rock-cutting system is introduced. This system facilitates...

... ABSTRACT: A cutting-splitting method is developed as a mechanized excavation for rock slope and tunnelling. The technique has two procedures. The first step is the rock cutting as designed dimensions (i.e. depth, spacing, width). The second is the rock splitting process by inserting chisel...

... in the elevation of the temporary top heading carriageway as well as distinct failure mechanisms were documented in the excavation face of the bench / invert (Figure 1). geologist rock type upstream oil & gas europe government geological subdiscipline excavation structural geology reservoir...

... into issues related to mining method geometries or support systems. geology reservoir characterization excavation pillar geological subdiscipline caving geologist reservoir geomechanics tunnel mechanism hoek arrangement intersection panel caving assessment utilization mexico government...

... at high overburden, revealing that high hydraulic gradients may develop close to the face in such situations. Numerical analyses with full hydraulic-mechanical coupling indicate a poorly confined region, subject to seepage forces, forming ahead of the face when approaching a fault zone. The governing...

... & gas metals & mining stability deformation rock mechanic pillar stability evaluation compression mexico government reservoir geomechanics strength mechanism deposit national autonomous university figure 7 criterion strength envelope estabilidad cnica institute figure 3 15th...

... ABSTRACT: Hydraulic fracture has become one of the technical means for efficient development of oil and gas reservoirs, and the brittle rock damage characteristics are the key mechanical indicators for fracturing to form complex fracture networks. The current research on brittle rock...

... ABSTRACT: While wells reach deeper and deeper targets, understanding the cutting mechanism under confinement is not yet fully mastered. Among the numerical methods used to study this problem, the Discrete Element Method has already shown promising results, but the evolution of rock behavior...

... the performance of a rock. The process of alteration in a rock consists of the set of transformations to stabilize it at the temperature and pressure of the environment in which it is exposed, succeeding in its disintegration and decomposition, mechanisms related to physical and chemical weathering, respectively...

... the failure mechanism using acoustic emission (AE) to evaluate the relationship between the parameters of AE and crack/fracture dimension/scale to determine statistical regularity of AE appearance before oncoming rock collapse and features of acoustic wave attenuation during its propagation via rock massive...

... ABSTRACT: Understanding the mechanical behavior of shale formations is becoming increasingly important. Shales are essential in oil and gas production from tight unconventional resources. In geological carbon sequestration of CO 2 , shales typically form the caprock for geological storage...

... capacity) tests and SEM experiments were conducted on representative samples. With the combination of caving analysis, the mechanisms of wellbore collapse were investigated for specific strata in Southwestern Tarim. The results showed that in Carboniferous strata, wellbore collapse was the comprehensive...