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A complete stress determination has been performed by hydraulic tests on pre-existing fractures conducted in two inclined boreholes for a railway cavern in Hong Kong, China. A total of ten complete tests including normal stress and fracture plane orientation determination have been successfully carried out in the zone where the cavern is located. The test depth in two holes varies from 101 to 120 m...
The identification problem for circular drawbead geometric parameters was discussed. The application method of genetic algorithm and equivalent drawbead model on identification for circular drawbead geometric parameters from given drawbead restraining force was developed and programmed, in which equivalent drawbead model was used as forward solver and genetic algorithm was adopted to solve the inverse...
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