Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Research on Altered Rock at a Hydropower StationBased on Triaxial Unloading Test
In order to study the effects of water on the deformation and strength of the altered rock during unloading, this paper obtains the micro-structure and mineral distribution of the altered rock at the right dam abutment of a hydropower station in southwest China by SEM (scanning electron microscope), then analyzes and discusses the influences of water in different stress paths on the stress-strain curves, deformation characteristics and strength characteristics of altered rock through triaxial loading and unloading tests of rock samples under natural state and saturated state. The results indicate that: compared with loading test, the cohesive force of rock sample increased and its angle of internal friction decreased under unloading test; based on triaxial loading and unloading tests, the strength of altered rock under saturated state is lower than that under natural state; the strength of altered rock decreases obviously after being exposed to water.
Research on Altered Rock at a Hydropower StationBased on Triaxial Unloading Test
In order to study the effects of water on the deformation and strength of the altered rock during unloading, this paper obtains the micro-structure and mineral distribution of the altered rock at the right dam abutment of a hydropower station in southwest China by SEM (scanning electron microscope), then analyzes and discusses the influences of water in different stress paths on the stress-strain curves, deformation characteristics and strength characteristics of altered rock through triaxial loading and unloading tests of rock samples under natural state and saturated state. The results indicate that: compared with loading test, the cohesive force of rock sample increased and its angle of internal friction decreased under unloading test; based on triaxial loading and unloading tests, the strength of altered rock under saturated state is lower than that under natural state; the strength of altered rock decreases obviously after being exposed to water.
Research on Altered Rock at a Hydropower StationBased on Triaxial Unloading Test
2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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