Search
Search Results
-
Energy dissipation characteristics of high-temperature granites after water-cooling under different impact loadings
Studying the energy dissipation characteristics of high-temperature rock after cooling with water during geothermal drilling construction is crucial...
-
Study on the micromechanical and crack characteristics of granite based on nanoindentation test and discrete element method
Exploring the mechanical properties and crack characteristics of granite at the grain scale is of greatly significant to understand brittle failures,...
-
Development and application of rock breaking platform with variable cross section extrusion pulsed water jet
Based on the theory of hydraulic self-reversing and pressurization, a variable cross-section squeeze pulse water jet rock breaking platform was...
-
Hybrid Lattice-discrete element method for ballast modeling
Railway ballast modeling can be performed by different approaches, through continuous or discrete models, which have their comparative advantages and...
-
Dynamic behavior of frozen soil with prefabricated holes under uniaxial impact loading
The surface and interior of natural frozen soil often feature numerous holes, cracks, and other initial defects of different sizes. In this study,...
-
Study on Blasting Characteristics of Shallow and Deep Soft-hard Rock Strata Based on Energy Field
The expected blasting effect of rock mass is always affected by the soft-hard rock strata with anisotropic mechanical properties, especially under...
-
Modelling Failure in Layered Geological Formations - FDEM: A Micro-mechanical Approach that Bridges Across Scales
The hybrid finite/discrete element method (FDEM) is an innovative numerical technology that combines the advantages of large-strain finite elements...
-
A BO-LSTM-Based Rapid Evaluation Method of PCCP Structural Safety under Falling Rock Impacts
The buried prestressed concrete cylinder pipe (PCCP) in mountainous areas easily suffers from geological disasters such as falling rocks, which...
-
Evaluating Nonlinear Plastic Dilatation Behaviors of Sandstone Using Stress-Dilatancy Models
Sandstones exhibit a complex, stress-dependent behavior characterized by nonlinearity and inelasticity. This study delves into the mechanical...
-
Study on Deterioration Characteristics and Fracturing Mechanism of Concrete Under Liquid Nitrogen Cold Shock
High-pressure water jet crushing concrete has significant advantages in safety, quality and environmental protection, which has a broad application...
-
Dynamic compression properties of a saturated white sandstone under ambient sub-zero temperatures
The dynamic compression properties of frozen rocks are essential for a better design of underground rock engineering infrastructures in cold regions....
-
The Mechanism of Particle Impact-Assisted Rock Cutting in Hard Brittle Granite
The deep rocks generally present high strength, plasticity and abrasiveness, which greatly limit the efficient drilling of the bit. Particle impact...
-
A Footpad Structure with Reusable Energy Absorption Capability for Deep Space Exploration Lander: Design and Analysis
The footpad structure of a deep space exploration lander is a critical system that makes the initial contact with the ground, and thereby plays a...
-
Dynamic Performance and Stress Wave Propagation Characteristics of Parallel Jointed Rock Mass Using the SHPB Technique
To investigate the effects of joint number on dynamic compressive strength, crushing effect, stress wave propagation, stress wave conversion, and...
-
Experimental and numerical study on the indentation behavior of TBM disc cutter on hard-rock precutting kerfs by high-pressure abrasive water jet
Tunnel boring machine (TBM) excavation of high strength or highly abrasive rock strata has some limitations, such as slow advance speed, low...
-
Research on the theory and method of reduced-hole blasting for large cross-section tunnel based on explosive energy dissipation
The traditional tunnel drilling and blasting method places cut holes at the lower center of the excavation face, resulting in an excessive number of...
-
Comparative Study of the Rock-breaking Mechanism of a Disc Cutter and Wedge Tooth Cutter by Discrete Element Modelling
The operation of a shield tunnel boring machine (TBM) in a high-strength hard rock stratum results in significant cutter damage, adversely affecting...
-
Optimization and Simulation of Operation Performance in Crushing Plants Using Fuzzy Modelling
This research includes optimization of aggregate production of the stone crushing plant using fuzzy modelling. The investigation includes onsite...
-
Prediction of rock drillability using gray wolf optimization and teaching–learning-based optimization techniques
An important index to evaluate the rock drilling ability in mines, tunnel drilling and underground drilling is the drilling rate index (DRI). Due to...
-
Effect of high-voltage electric pulse stimulation on heated-granite: An experimental investigation
High-voltage electric pulse (HVEP) technology merits further investigation into its potential applications. The effectiveness of using HVEP to induce...