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![Figure 4. Stress-strain curve of rocks [8].](publication/354658745/figure/fig4/AS:1069090324094978@1631902404360/Stress-strain-curve-of-rocks-8_Q320.jpg)
With the rapid development of society, the number of hydropower projects has increased. During the construction of these projects, due to excavation-induced unloading, the high sidewalls of the hydropower station are often subject to splitting failure, which produces many adverse effects on the construction of the cavern. In order to reveal the for...
Context in source publication
Context 1
... the classical elastic-plastic theory, the yield of a point in the material depends on its stress state and hardening parameters; for the theory of plastic strain gradient, the yield of the point in the material is not only related to the stress state and hardening parameters of the point itself, but also the influence of the surrounding points on the hardening parameters. When considering the influence of surrounding points on hardening parameters, point P with coordinate , x y in the overall coordinate system is selected, and the neighborhood with surrounding radius R is taken as the neighborhood affecting point P, and the distance from any point in the neighborhood to the point is r, as shown in Figure 3. In the local coordinate system, the rectangular coordinates and polar coordinates of point P are Among them, g r is the material weight function, and the expression is selected as: ...
Citations
... Pointed factors increase the likelihood of rock pressure manifestation both in static and dynamic forms [5] emerging certain issues in working staff safety provision. The identified problems are typical not only for mining enterprises but also for industrial and civil structures, for example, in the construction of hydroelectric power plants [6,7], in the construction of railway [8] and underwater tunnels [9,10]. ...
