5.3.1 Powerhouse foundation shall meet the followingrequirements.(1) Bearing capacity.(2) Powerhouse stability against sliding and deformation control.(3) Seepage control and seepage stability.(4) Durability, and prevent the deterioration of foundation ro...[繼續(xù)閱讀]

    6.1.1 Structural system of powerhouse shall meet the followingrequirements.(1) Transmission pathway of action (load) is definite.(2) It can be avoided that the bearing capacity for whole structure lostdue to the destruction of partial structure or compone...[繼續(xù)閱讀]

    6.2.1 Superstructure design of powerhouse consisting roof system,crane girder, framework, floor system and building envelope may besimplified into planar structure based on actual situation or may becalculated by spatial structure system if necessary.6.2....[繼續(xù)閱讀]

    6.3.1 The design of pedestal and generator pit for generating unitsshall be carried out based on the following data.(1) General assembly drawing of generator and turbine, foundationdrawing, and magnitude and position of foundation loads.(2) The generator ...[繼續(xù)閱讀]

    6.4.1 Powerhouse substructure, such as spiral case, draft tube,tubular-shaped foundation of tubular turbine, entrance section ofwater retaining powerhouse, wall pier under water and base slab offoundation, may be designed as an independent structure. For ...[繼續(xù)閱讀]

    6.5.1 Permanent expansion joints should be provided betweenadjacent buildings such as powerhouse and dam, erection bay,auxiliary plant, etc. Settlement joints shall be provided at thepositions where foundation with significant differences, powerhouseexcav...[繼續(xù)閱讀]

    7.1.1 The arrangement of underground powerhouse is determinedthrough technical and economic comparison based on the affectingfactors including hydrological, meteorological and geologicalconditions, general layout of the project, layout of mechanical andel...[繼續(xù)閱讀]

    7.2.1 The stability of tunnel surrounding rock shall becomprehensively evaluated based on the factors such as thegeological conditions and physical-mechanical properties of rockmass, geo-stress, underground water, layout of cavern group,construction metho...[繼續(xù)閱讀]

    8.1.1 Powerhouse within dam and overflow type powerhouse maybe selected based on comprehensive technical and economicaldemonstration for the river section of rock base with steep banks,narrow valley, large flood flow and great fluctuation between floodand...[繼續(xù)閱讀]

    Design of powerhouse for tubular turbine units shall also meet thefollowing requirements.(1) Submerged depth of tailwater outlet shall be larger than the valueof v2/2g (v means average flow velocity of cross section of draft tubeoutlet) and no less than 0...[繼續(xù)閱讀]