Search
Search Results
-
Machine-learning method applied to provide the best predictive model for rock mass deformability modulus (Em)
Rock mass classification systems are used to estimate deformability modulus. This study offers a relationship to estimate deformability modulus using...
-
Coupled Hydro-Mechanical Behaviour of Rock Joints During Normal and Shear Loading
The hydraulic conductivity of rock joints is an important parameter controlling fluid flow in various rock engineering applications. The shearing and...
-
Improvement of Strength-Deformability Behaviour of Rock-Like Materials and Coal Using Fibre-Reinforced Thin Spray-on Liner (FR-TSL)
Thin Spray-on Liner (TSL) is a new class of skin support which can be applied to the roof or sidewalls of an excavation for enhancing...
-
Rate- and Normal Stress-Dependent Mechanical Behavior of Rock Under Direct Shear Loading Based on a Bonded-Particle Model (BPM)
Shear failure often occurs during the construction of the geotechnical engineering projects, especially under dynamic loading condition. To...
-
A New Correlation to Predict Rock Mass Deformability Modulus Considering Loading Level of Dilatometer Tests
All numerical and analytical methods dealing with the calculating deformation of rock mass require deformation modulus (D f ) which is measured by...
-
Deformation of Strong Overburden Rocks in Dams and Overburden Dumps during Operation of Transport Machines
AbstractCompressibility of strong and structurally disturbed rocks is determined for predicting land subsidence and stability during operation of...
-
An Extended Hyperbolic Closure Model for Unmated Granite Fractures Subject to Normal Loading
The closure behavior of rock fractures subject to normal loading is essential for deformation analysis of fractured rock masses and the modeling of...
-
Studying the normal stress influential factor on rock joint stiffness using CNL direct shear test
The deformational behavior of jointed rock masses is greatly influenced by the geometrical and mechanical characteristics of joints. Shear ( k s ) and...
-
-
Assessment of Direct Tensile Strength Tests in Rock Through a Multi-laboratory Benchmark Experiment
This study aims to experimentally assess repeatability and reproducibility of direct tensile strength (DTS) tests with deformability measurements on...
-
Shear behaviors of rock masses containing nonpersistent joints affected by normal stress rebound under excavations and river incisions
The catastrophic mechanism of rock masses with discontinuities under excavations and river incisions is very complex. Based on this engineering...
-
Strength, Deformability and X-ray Micro CT Observations of Deeply-Buried Marble Under Different Confining Pressures
The **** II Hydropower Project is located in the upriver of the Yalong River in Sichuan Province, south-western China.
-
New Data Processing Protocols to Isolate Fracture Deformations to Measure Normal and Shear Joint Stiffness
The importance of discontinuity geomechanical properties is increasing as the use of numerical models with explicit or discrete rock mass structure...
-
Exploring Heterogeneity Consideration in Bonded Block Analyses of Laboratory and In Situ Tests on Opalinus Clay
The impact of heterogeneity on the failure of rocks has prompted researchers to perform numerical investigations. Heterogeneity can be incorporated...
-
Experimental investigation on seismic performance of severely earthquake-damaged RC bridge piers after rapid strengthening
This paper proposes a rapid strengthening method for severely earthquake-damaged RC piers. In this strengthening method, high-strength steel bars...
-
Effect of randomly distributed polypropylene fibers on unconfined compressive strength, shear strength, and compressibility characteristics of Algerian high plasticity clay soil
Fibers are commonly used to improve the geotechnical properties of problematic soil (e.g., high-plasticity fine-grained soils). Such clays are...
-
The effects of rock joint characteristics and normal stress level on the stiffness of rock joints
The present research aims to study the effects of normal stress level on the rock joint stiffness. In addition, the sample size effect was also taken...
-
Compacted bentonite hydro-mechanical modelling when interaggregate porosity tends to zero
A formulation is proposed for reproducing the hydro-mechanical behaviour of compacted bentonites as interaggregate porosity becomes negligible. In...
-
Microscale Characterization of Fracture Growth in Increasingly Jointed Rock Samples
Discrete element method (DEM) is employed to investigate the fracture growth and failure mechanism of increasingly jointed rock samples subjected to...
-
Numerical simulation on the seismic performance of retrofitted masonry walls based on the combined finite-discrete element method
Due to the long construction life, improper design methods, brittle material properties and poor construction techniques, most existing masonry...