Assessment of a Modified Rock Mass Classification System for Rock Slope Stability Analysis in the Q-system

Fereidooni, Davood; Khanlari, Gholamreza; Heidari, Mojtaba

doi:10.15446/esrj.v19n2.49127

Cited by 19 publications

(5 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of the commonly accepted methods for investigating empirical relationships between different rock properties is regression analysis (Khanlari et al, 2014 a, b;Fereidooni et al, 2015;Ghobadi and Babazadeh, 2015;Fereidooni et al, 2016). Simple regression analyses were performed to develop relationships between slake-durability and physical, index, and mechanical properties of the studied rocks.…”

Section: Regression Analysesmentioning

confidence: 99%

The effects of water acidity and engineering properties on rock durability

Khajevand

Fereidooni

2022

Earth sci. res. j.

Self Cite

View full text Add to dashboard Cite

Fifteen sedimentary rock samples of four rock types including sandstone, limestone, travertine and conglomerate were collected from Damghan area, northern Iran. Mineralogical studies and laboratory experiments were performed to assess physical properties, Schmidt hardness, P-wave velocity, slake-durability index, uniaxial compressive, point load, Brazilian tensile and block punch strengths of the rocks. The studied rock samples are mainly composed of quartz, calcite and dolomite with different textures. The slake-durability test was carried out up to ten cycles in fluids with different pH. The utilized test fluids were natural water with pH of 7 and sulfuric acid solutions with pH of 5.5 and 4. Based on the results, the slake-durability index is affected by pH of the test fluids. Also, the different rock types had distinctive slaking behaviors. Decreasing rate of slake-durability index at initial cycles is higher than the end cycles the same as weight loss rate of the specimens. Regression analyses showed that the evaluated parameters are correlated to the slake-durability index. In other words, the slake-durability index of the studied rock samples is greatly affected by their mineral composition, texture, physical properties such as porosity and closely related to strength parameters of the rocks. This led to extraction of empirical equations for determining essential characteristics of the rocks from the slake-durability index.

show abstract

Section: Regression Analysesmentioning

confidence: 99%

The effects of water acidity and engineering properties on rock durability

Khajevand

Fereidooni

2022

Earth sci. res. j.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Discontinuities play a key contributing factor in slope stability. In addition, rock type, joint properties, geometry, water condition, and failure-plane characteristics are the key parameters that affect slope instability [9,14,16,21,22]. Moreover, assessing rock slopes is challenging to select the appropriate parameters for the stability assessment.…”

Section: Introductionmentioning

confidence: 99%

Geotechnical Assessment of Rock Slope Stability Using Kinematic and Limit Equilibrium Analysis for Safety Evaluation

Rahman

Zhang

AlQahtani

et al. 2023

Water

View full text Add to dashboard Cite

The purpose of this study is to identify the leading causes of slope instability along a local highway in Anhui, People’s Republic of China. As part of the east expansion project, the mountain range will be excavated to create a two-way, nearly 30 m wide highway. The site’s topography consists of a hill with palm-shaped faces carved from limestone running along its sides. The geological characteristics and slope stability of the research area highlight the possibility of slope failure along both sides of the roadway. Slope stability analysis was performed in order to determine the failure mechanism and create a stable slope. Initial slope characterization and shear properties of the rock were determined by means of fieldwork and laboratory analysis. By causing wedging failure and toppling collapse, the bedding joints and discontinuity orientations increase instability, as determined by a kinematic analysis performed with DIP.6 software. The Limit Equilibrium Method (LEM) of analysis is presented in the software Slide 6.020 to illustrate the instability of the slope. The unstable condition of the slopes was determined using empirical methods that were validated and enhanced by limit equilibrium analysis.

show abstract

“…The stability evaluation of slope is an important basis for slope design and construction. Many researches on the analysis of slope stability generally used a deterministic approach [1][2][3][4][5][6][7]. Since the geological and environmental conditions are very complex, most project problems are filled with uncertainty.…”

Section: Introductionmentioning

confidence: 99%

Cloud Model Membership Degree of Rock Slope Stability Evaluation: Method and a Case Study

Liu¹,

Wang²,

Qiao³

2022

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

The ranking grade of rock engineering stability is generally determined by the maximum membership degree principle, and the value of membership degree is an exact numerical value. However, the membership degree of uncertainty with randomness and fuzziness has not been considered. The membership degree with uncertainty can describe the uncertainty effects of the evaluating factors on rock engineering stability and fully shows the degrees of one evaluating factor belonging to the ranking grades. In this study, a quantitative index representing the membership degree with uncertainty is proposed and obtained based on the membership degree of the cloud model. The membership degree of the cloud model is obtained based on normal cloud theory, the system and the ranking grade of evaluation factors and analytical hierarchy process (AHP) based on scale of the cloud model. An evaluation method for the membership degree of cloud model is conducted and applied in a rock slope project. The feasible and practical evaluation results is verified by comparing with that of AHP method, the extension theory and the numerical simulation. This proposed method can serve as a decision tool for stability evaluation in other similar projects.

show abstract

Assessment of a Modified Rock Mass Classification System for Rock Slope Stability Analysis in the Q-system

Cited by 19 publications

References 17 publications

The effects of water acidity and engineering properties on rock durability

The effects of water acidity and engineering properties on rock durability

Geotechnical Assessment of Rock Slope Stability Using Kinematic and Limit Equilibrium Analysis for Safety Evaluation

Cloud Model Membership Degree of Rock Slope Stability Evaluation: Method and a Case Study

Contact Info

Product

Resources

About