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Method of Stress Field and Stability Analysis of Bedding Rock Slope Considering Excavation Unloading
The stress state of a slope and its analytical solution are prerequisites for stability analysis. Currently, the limit equilibrium method cannot...
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Study on the Fissure Propagation of Jointed Rock Slope Under Unloading Condition
The rock mass unloading is closely related to the change of geological environment, such as river valley down-cutting, frequent rainfall and...
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Excess energy characteristics of true triaxial multi-faceted rapid unloading rockburst
Delayed rockburst experiments with different numbers of unloading surfaces (DNUS) were performed using an independently developed true triaxial...
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Mechanical response analysis of buried natural gas pipelines due to excavation unloading
The excavation and maintenance of buried natural gas pipelines can lead to deformation and stress redistribution of the pipelines and even cause...
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Bulk Car Loading and Unloading Machinery
This chapter introduces five types of bulk car loading and unloading machinery, including the telescopic boom type continuous bulk car loader, chain...
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Crack propagation behavior in sandstone during unloading confining pressure under different seepage pressures
The unloading confining pressure tests were conducted on sandstone under the seepage pressure to reveal the relationships between the deformation...
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Experimental and Analytical Investigation of Deflection of R-UHPFRC Beams Subjected to Loading–Unloading
Under service conditions, R-UHPFRC (Reinforced Ultra High Performance Fiber Reinforced Cementitious composite) beams exhibit residual deflection...
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Mechanical Anisotropy of the Columnar Jointed Rock Mass Under Unloading Conditions
The mechanical properties of a columnar jointed rock mass (CJRM) under loading and unloading conditions differ appreciably. The CJRM at the Baihetan...
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An experimental investigation of gas permeability of a low permeability sandstone under deviatoric loading with loading/unloading cycles
Low permeability sandstones are widely found in oil and gas reservoirs. To gain a better understanding of the mechanical behavior of low-permeability...
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Brittleness of layer sandstone under triaxial loading and unloading
Accurately quantitative characterization of brittleness of coal or rocks is important for effective estimation of excavation efficiency in deep...
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Transfer mechanism and criteria for static–dynamic failure of granite under true triaxial unloading test
In the construction procedure of infrastructure, the excavation disturbance significantly changes the initial stress state of rocks in deep...
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An improved elastoplastic model for rocks and application to cyclic loading and unloading triaxial compression tests
The recoverable strain of rock is completely classified as elastic strain in the conventional elastic-plastic theory, which often results in poor...
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Radial Depth Damage Properties of Coal Tunnels Surrounded by Rock under Excavation and Unloading
In order to study the mechanism of radial gradient damage of surrounding rock caused by deep elevated stress coal roadway excavation, a triaxial...
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Observation and Analysis of a Moving Slope
A northbound motorway close to the city of Barcelona has shown various deformation signs in its pavement and, as a consequence, it has been the...
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Experiment and DEM simulation study on mechanical behaviors of shale under triaxial cyclic loading and unloading conditions
During shale gas exploration, natural fractures in shale reservoirs may be induced by cyclic loads frequently encountered in different geological...
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Deformation Evolution Characteristics and Destabilization Mechanism of Locked Slope Excavation
Localized high-strength rocks have an important influence on the stability and deformation characteristics of slopes. Understanding the excavation...
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The Phase Transformation of Silicon Assessed by an Unloading Contact Pressure Approach
Silicon is of great economic importance for the semiconductor industry as well as of academic interest because of its high-pressure phase...
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Experimental investigation of the failure mechanism of deep granite under high seepage water pressure and strong unloading effect
For deep hard–brittle rock mass engineering in a complicated hydrogeological environment, deformation and damage of the surrounding rock during...
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Dynamic characteristics of high stressed red sandstone subjected to unloading and impact loads
In the process of deep projects excavation, deep rock often experiences a full stress process from high stress to unloading and then to impact...
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Three-Dimensional Detection Technology for the Side Slope of the Tunnel
With the rapid development of China's social economy and infrastructure construction, more and more railways, highways and hydropower stations will...