18 Result(s)
within
**anchun Li
Earth Sciences
English
Geophysics/Geodesy
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Article
Heating and Water Transport Behavior of Sandstones Under Microwave Irradiation
Microwave treatment has become a promising method to improve the efficiency of mechanical excavators in hard rocks. This paper conducted microwave irradiation tests on three water-bearing sandstones and analyz...
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Article
Assessing the Size Effect on Microwave Fracturing of Diorite Using a Dielectric-Loaded Converging Waveguide Antenna
Microwave fracturing and assisted mechanical breakage of rocks has been demonstrated to be efficient and cost-effective, holding great potential in rock excavation. However, the size effect on the fracturing p...
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Article
Dynamic Strength and Indentation Hardness of a Hard Rock Treated by Microwave and the Influence on Excavation Rate
Mechanical excavation in hard or very hard rocks is still challenging in rock engineering. One plausible solution is to reduce rock strength prior to mechanical excavation to increase excavation and cost-effic...
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Article
Transverse Cracking of Rock with a Dissimilar Inclusion Under Tension: Effect of Loading Rate and Inclusion Diameter
The rate-dependent tensile failure of rock with a cement inclusion was experimentally and numerically investigated to reveal the coupled dynamic response of inclusion-containing heterogeneous rock structures. ...
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Article
Heating-Dominated Fracturing of Granite by Open-Ended Microwave: Insights from Acoustic Emission Measurement
Microwave fracturing of hard rocks holds great promise in the civil, mining and tunnelling industries. The role of heating and cooling in the fracturing of rocks and when and where cracks initiate from and pro...
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Article
Feasibility of Artificial Materials in Simulating Rock Failure Based on Rate-Dependent Brittleness Indexes
With the development of 3D printing and computer numerical control machining techniques, extremely complicated models physically simulating the underground structures in rock engineering were conducted. Whethe...
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Article
A Novel Experimental Method to Investigate the Seismic Response of Rock Joints Under Obliquely Incident Wave
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Article
Rainfall seasonality changes and its possible teleconnections with global climate events in China
Despite the importance of seasonal distribution and interannual variability of rainfall to the ecosystem and society, there is a lack of regional-level studies on rainfall seasonality, and teleconnections betw...
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Article
Experimental Study of S-wave Propagation Through a Filled Rock Joint
This experimental study proposes a Split Shear Plates model to investigate the effects of a filled joint on S-wave attenuation. A dynamic impact is used to create frictional slip and generate an incident S-wav...
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Article
Analytical Time-Domain Solution of Plane Wave Propagation Across a Viscoelastic Rock Joint
The effects of viscoelastic filled rock joints on wave propagation are of great significance in rock engineering. The solutions in time domain for plane longitudinal (P-) and transverse (S-) waves propagation acr...
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Article
Special Issue: Including Papers on “Rock Dynamics and Applications”
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Article
Wave Propagation in the Vicinities of Rock Fractures Under Obliquely Incident Wave
Though obliquely incident plane wave across rock fractures has been extensively investigated by theoretical analysis, the quantitative identification of each wave emerged from fractures has not been achieved e...
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Article
Numerical Modeling of Wave Transmission Across Rock Masses with Nonlinear Joints
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Article
In Situ Stress Determination for Liquefied Petroleum Gas Storage Caverns by Hydraulic Tests on Pre-existing Fractures
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Article
Direct Tension Test for Rock Material Under Different Strain Rates at Quasi-Static Loads
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Article
Analysis of Stochastic Seismic Wave Interaction with a Slippery Rock Fault
Stochastic seismic wave interaction with a slippery rock fault is studied, based on the principle of conservation of momentum at the wave fronts along the fault. By using the displacement discontinuity method,...
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Article
Analysis of Blast Wave Interaction with a Rock Joint
The interaction between rock joints and blast waves is crucial in rock engineering when rock mass is suffered from artificial or accidental explosions, bursts or weapon attacks. Based on the conservation of mo...
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Article
Analysis of Wave Propagation Through a Filled Rock Joint
An analytical and experimental study on a longitudinal wave (P-wave) transmission normally across a filled rock joint is presented in this paper. The dynamic property of the filling material for the artificial...
