In the present study, marble rock specimens were tested in the laboratory after treatment with different pH solutions for 15h. The physico-mechanical properties of the marble were determined in both acidic and alkaline conditions. The study revealed that the strength properties are higher at pH 7...
It is shown by tests that there are some differences between mechanical properties of rock masses under loading and unloading conditions. A series of tri-axial tests under loading and unloading conditions are done on the marble samples from the slopes of the Jinping Primary Hydropower Project to ...
The mechanical properties of marble, limestone, and sandstone as well as the stress-strain curve, the varying characteristics of the peak strength, the peak strain and elastic modulus were studied by using the MTS810 Rock Mechanics Servo-controlled Testing System under the action of temperatures ran...
Marble is a non-foliated metamorphic rock that forms through the metamorphism of limestone. It has a greater number of potential uses than almost any other rock type.
of experimental parameters—several conditions. Two types of pressure may be simulated:confining(hydrostatic), due to burial under rock overburden, and internal (pore), due topressureexerted by pore fluids contained in void space in the rock. Directed applied stress, such as compression, tension, ...
or possibly by the crystallization of magmatic carbon. It occurs as isolated scales, large masses, or veins in older crystalline rocks,gneiss,schist, quartzite, and marble and also in granites, pegmatites, and carbonaceous clay slates. Small isometric crystals of graphitic carbon (possibly pseudomorp...
Metamorphic rocks are the third major type of rock, the other two being igneous and sedimentary. Because of how they are formed, metamorphic rocks constitute a great deal of the bedrock in Earth's crust. Many precious materials, such as marble and many types of gemstones, including diamonds,...
Under lower confining pressure(σ3≤10 MPa),the triaxial peak strength of rock specimens with discontinuous pre-existing cracks is lower than that of intact rock specimens;but for triaxial residual strength,there are no great differences between intact coarse marble and marble with discontinuous pre-...
[23] studied the influences of loading mode on rock deformation characteristics and energy evolution characteristics. The above research results provide an important reference for investigating the energy evolution characteristics of different lithological rocks such as coal, marble, mudstone, and sandstone....
The weak interlayer in rock mass is an important factor affecting the stability of geotechnical engineering. In practical engineering, bolt is widely adopt