Experimental, Theoretical, Numerical and Big-Data-Based Investigations on Characterizations for Geomaterials

• Other Authors: Wang, Shaofeng (Editor), Huang, Linqi (Editor), Ma, Tianshou (Editor), Zhou, Jie (Editor), Zheng, Changjie (Editor)
• Format: Electronic Book Chapter
• Language: English
• Published: Basel MDPI - Multidisciplinary Digital Publishing Institute 2023
• Subjects: Technology: general issues; History of engineering & technology; coupled static and dynamic loads; artificial flaw; SHPB; 3D-DIC; failure laws; elastic wave; frequency dependent attenuation; attenuation coefficient; rock microstructures; bleeding water; phosphogypsum; cemented backfill; pollutant; backfill slurry; rock mass; anisotropy; confining pressure; strength; failure mechanism; discontinuity; dynamic Brazilian splitting; digital image correlation; rock materials; fracability; fracture process zone; crack tolerance; chevron notched disk; discrete element method; iron tailings; phosphate removal by adsorption; flawed rocks; cracking mechanism; energy dissipation; rock-burst; weakly cemented rocks; triaxial compression; permeability; matrix fracturing; stress-damage-permeability; in-situ assembling caisson; VSM construction method; ground settlement; deep layered deformation; field measurement; stability; n/a; DIC; double fissures; damage characteristics; fractal; cyclic point loading; rock fatigue; loading frequency; waveform; mechanized rock breakage; parameter optimization; hard rock characterization; rock properties; field tests; rebound/Schmidt hammer; point load test; Los Angeles test; aleatoric and epistemic measurement uncertainty; hard rock; rock burst tendency; lab testing; brittleness indicator; strength decrease rate; cut blasting; damage model; in-situ stress; numerical simulation; field test; soil-rock mixture (S-RM); electrical resistivity; triaxial shear; mechanical behavior; cemented soil-concrete interface; large-scale interface shear test; interface shear strength; unconfined compressive strength; abutment; deformation; geosynthetics; geosynthetic reinforced soil; volumetric deformation; carbonaceous slate; bedding angle; chemical erosion; creep characteristic; sand; creep shear mechanical response; SVM; BPANN
• Online Access: DOAB: download the publication; DOAB: description of the publication

Rock and rock-like materials such as concrete, soil, and underground backfilling materials are considered to be geomaterials. Geomaterials are essential for life due to human construct extraction, mining, storage, and transport areas in the Earth's crust for raw material. Drilling and excavations of underground openings in the Earth's crust are requirements for the exploitation and utilization of mineral resources, energy resources, and underground spaces. The deepest drilling depth has exceeded 12 km, and the deepest underground excavation now operates mines with depths exceeding 4 to 5 km. Drilling, excavation, and rock support processes largely rely on the physical and mechanical properties of geomaterials. Rock excavations are faced with some instability phenomena, such as caving, rock bursts, slabbing, large deformation, and zonal disintegration, posing a serious threat to the safety of mining and tunneling operations. Rock drilling also encounters many challenges deep underground. Deformation, fracture, failure, and fragmentation are the different stages of geomaterials, the monitoring and control of which are essential for ensuring drilling and excavation safety. Therefore, understanding the response processes of geomaterials during drilling and excavation activities depends on the precise characterizations of geomaterials.