Results 21 to 30 of about 2,581 (196)
Journal of the Mechanical Behavior of Materials, 2023 A number of destructive and non-destructive tests were conducted on rock samples collected from various zones in northern Iraq. So far, for Iraqi rocks, few studies have correlated Schmidt hammer rebound (R) with both unconfined compressive strength (UCS)
Fadhil Amjad Ibrahim +2 more
doaj +1 more source
Prediction of uniaxial compressive strength of rock based on lithology using stacking models [PDF]
, 2023 Uniaxial compressive strength (UCS) of rock is an essential parameter in geotechnical engineering. Point load strength (PLS), P-wave velocity, and Schmidt hammer rebound number (SH) are more easily obtained than UCS and are extensively applied for the ...
Liu, Zida +4 more
core +1 more source
Determination of Drilling Rate Index Based on Rock Strength Using Regression Analysis [PDF]
Anais da Academia Brasileira de Ciências: Drillability is influenced by many factors, including machine parameters and rock properties. The main machine parameters for drilling include rotational speed, thrust force, torque and flush pressure.
HAYATI YENICE
doaj +2 more sources
Science and Engineering of Composite Materials, 2021 The joint roughness has an influence on the uniaxial compressive strength (UCS) and characteristic strength of the rock, but the relationship of the influence is yet to be obtained. In this article, the influence of the size of the rock with rough joints
Hu Gaojian, Li Yu, Ma Gang
doaj +1 more source
Proposing Regression Models to Estimate Uniaxial Compressive Strength and Elastic Modulus of the Sandstones Based on Physical Properties and Compressional Wave Velocity [PDF]
پژوهشهای زیرساختهای عمرانی, 2021 Many engineering structures have been built on the sandstones. The main purpose of this study is to estimate the uniaxial compressive strength (UCS) and modulus of elasticity (Es) of sandstones using regression models.
Amir Azadmehr +2 more
doaj +1 more source
Mechanical properties of Michigan Basin's gypsum before and after saturation
Journal of Rock Mechanics and Geotechnical Engineering, 2019 The stability analysis of an abandoned underground gypsum mine requires the determination of the mine pillar's strength. This is especially important for flooded abandoned mines where the gypsum pillars become saturated and are subjected to dissolution ...
Mohammadhossein Sadeghiamirshahidi +1 more
doaj +1 more source
Frontiers in Materials, 2022 The shear strength of the soil-rock mixture (S-RM) is the primary mechanical factor influencing the stability of the deposit slope. The particle size range inside the test sample, however, is not the same as that of the S-RM in the deposit slope due to ...
Yingbo Zhou +5 more
doaj +1 more source
Indirect test methods for the mechanical characterization of building stones [PDF]
MATEC Web of Conferences, 2018 The main objective of this study is to evaluate the usefulness of indirect methods to estimate the uniaxial compressive strength (UCS) of building stones.
Forestieri Giulia
doaj +1 more source
Correlation between uniaxial compressive strength and point load strength of Penang Island Granites [PDF]
, 2022 Uniaxial compressive strength (UCS) is one of the most widely used strength parameters in geotechnical design. The value is obtained through direct testing method, carried out through careful procedures of testing in a laboratory setting.
Mat Said, K. N. +5 more
core +1 more source
Frontiers in Physics, 2020 The contact part between shaft wall and rock is affected by many factors, such as temperature and formation pressure, in the commonly used freezing method in coal mine development through quicksand and water-rich strata.
Tao Zhao +4 more
doaj +1 more source