Underground mined-out areas and tailings are the two major harmful consequences from metal mining industry. Cemented Paste Backfill (CPB) method, refilling back to underground areas, has been widely used worldwide. Clear understanding on uniaxial compressive strength (UCS) behavior of CPB is very important for stability analysis backfill structure parameters optimization plan. However, UCS test...

UPV as non-destructive technique can effectively contribute to the low invasive in situ analysis and diagnosis of masonry elements related to the conservation, rehabilitation and strengthening of the built heritage. The use of non-destructive and non-invasive techniques brings all the times many advantages in diagnostic activities on pre-existing buildings in terms of sustainability; moreover, ...

Abstract The rock uniaxial compressive strength (UCS) is the basic parameter for support designs in underground engineering. In particular, UCS should be obtained rapidly engineering with complex geological conditions, such as soft rock, fracture areas, and high stress, to adjust excavation plan ensure construction safety. To solve problem of obtaining real-time at sites, a forecast idea propos...

The existence of fractures has a significant influence on the mechanical properties rock mass. sensitivity mass’s to fracture’s geometric parameters is conducive improving measurement accuracy fractured mass engineering. Firstly, fracture in dam site area Lianghekou Hydropower Station were counted using ShapeMetriX3D system. Then, effect deformation characteristics, failure mode, and investigat...

an understanding of the strength of rice grains as affected by moisture content and temperature is important for analysis and prediction of cracking and/or breakage behavior during handling and processing. further, the magnitude of these properties at various moisture contents and temperatures is needed for the accurate design of milling machinery so that grain damage is minimized. to determine...

Fissures substantially impact the engineering stability of rock masses, making research on masses with preexisting fissures essential for activities. The development specimens different fissure types was examined in this study. Three can be broadly categorized: few fissures, multiple and other flaws. Uniaxial compression tests two unequal lengths were conducted, influence angle, distance betwee...

The uniaxial compressive strength (UCS) of intact rocks is an important geotechnical parameter required for designing geotechnical and mining engineering projects. Obtaining accurate estimates of the rock mass UCS parameter throughout a 3D geological model of the deposit is vital for determining optimum rock slope stability, designing new exploratory and blast boreholes, mine planning, optimizi...

in this paper, after collecting the rock samples from eight mines and one high way slope, the tests for determination of dry density, uniaxial compressive strength, tensile strength (brazilian test), elastic modulus, schmidt hammer rebound number have been done on samples. in addition, in order to calculating the mean size of rock grains, quartz content, hardness and abrasivity, a thin sections...

Abstract. This study investigated the uniaxial compressive strength (UCS) and split tensile of a mixture soil recycled ash natural fibers using two different methods, partial least squares (PLS) classification regression random forest (CRRF). The analyzed dataset 20 sets with five inputs outputs, importance input parameters was evaluated. performance PLS CRRF models assessed, it found that mode...

Abstract Shear Strength of jointed rock plays a significant role in the stability mass structure especially if developments plan to be constructed adjacent this formation. However, get shear strength joints is quite costly and difficult identified directly at site. This research conducted establish relationship between uniaxial compressive (UCS) granitic rock. UCS parameters are easily common p...