6.4.1 Arrangements of tests on rock and soil in the dam site areashall comply the following basic principles.(1) Arrangements of tests on rock and soil shall be adapted to itsinvestigation stage, laboratory tests and in-situ tests shall beconsidered compr...[继续阅读]

    6.5.1 The arrangements for hydrogeological tests shall meet theprovisions of GB 50287, in consideration of project scale, dam typeand complexity of hydrogeological and engineering geologicalconditions. The methods of hydrogeological tests mainly containbo...[继续阅读]

    6.6.1 Arrangement of observation and monitoring shall begradually conducted with investigation stages. Observation andmonitoring items shall include deformation monitoring for unstableor potentially unstable rock soil mass of slopes, long-term dynamicobse...[继续阅读]

    7.1.1 The study of engineering geological characteristics for rockmass shall include following contents.(1) Rock hardness. Rock hardness shall be determined throughmeasured uniaxial compression strength of saturated rocks. Theuniaxial compression strength...[继续阅读]

    7.2.1 The main contents of special engineering geological study forrock foundation shall cover soft rock, weak intercalation and joint(fissure).7.2.2 Engineering geological study for soft rock shall include thefollowing contents.(1) Genetic, orientations,...[继续阅读]

    7.3.1 The classification of soils shall comply with the followingprovisions.(1) Classification by geological genetic types of Quaternarysediments, see Appendix S.(2) Classification by soil fraction and relative contents of differentfractions shall comply ...[继续阅读]

    7.4.1 The main contents of engineering geological study for specialsoils shall cover collapsible loess, soft soil, expansive soil (rock), redclay and frozen soil.7.4.2 Engineering geological study for collapsible loess shallinclude the followings.(1) Gene...[继续阅读]

    8.1.1 Dam construction on rock foundation shall meet the basicrequirements.(1) Dam foundation of concrete gravity dam shall meet the followingrequirements.1) With sufficient strength to support the pressure of dam body.2) With sufficient integrity and hom...[继续阅读]

    8.2.1 Soil foundation shall meet the following basic requirements.(1) Certain bearing capacity shall be available to meet therequirements of allowable settlement and differential settlement.(2) Enough permeability shall be available to meet the requiremen...[继续阅读]

    8.3.1 Geological evaluation for dam slopes shall include thefollowing contents.(1) According to structure and properties of rock and soil mass ofslopes, slope generation, development history and present stabilityconditions shall be analyzed to evaluate th...[继续阅读]