8.3.1 The settlement upon completion of construction and thefinal settlement of dam body and foundation shall be calculatedfor an earth-rockfill dam.8.3.2 The settlement of dam and foundation may be calculatedwith the layer-wise summation method according...[继续阅读]

    9.1.1 In design of dam heightening,the monitoring data of theexisting dam body shall be analyzed,and investigation and testsshall be carried out to acquire dam quality and safety status,andaccording to the dam height and storage capacity after damheighten...[继续阅读]

    1.0.1 This specification is formulated to standardize the designof roller compacted earth-rockfill dams of small size water andhydropower projects,and to meet the requirements of safety,cost-effectiveness,rationality,and state-of-art technology.1.0.2 This...[继续阅读]

    6.10.1 Dam shall be well connected with foundation and bankslope,and the following situations shall be avoided:1 Seepage scours along the interface of dam and foundation.2 Forming weak interface and causing adverse impacts onthe stability of dam.3 Uneven ...[继续阅读]

    7.5.1 Dam foundation of collapsible loess shall be treated.7.5.2 For less thick collapsible loess dam foundation,collapsibilityof dam foundation may be eliminated by removing,scarifying,or surface compaction,etc.7.5.3 For thick collapsible loess dam found...[继续阅读]

    5.1.1 Investigation and geo-technical tests shall be done forfilling materials to identify the property,storage,borrowingconditions and transportation distance of natural and excavatedmaterials near the dam site.5.1.2 Selection of filling materials shall ...[继续阅读]

    3.1.1 Dam site shall be determined based on schemes comparison,with comprehensive consideration of topography,geology,construction materials,project layout,upstream and downstreamconditions,etc.3.1.2 The dam site should be located on rock foundation withs...[继续阅读]

    6.4.1 The dam slope shall be determined according to the follows:1 Dam type and dam height.2 Physical-mechanical properties of dam and foundationmaterial.3 Loads on the dam.4 Construction and operation conditions.In the design,the dam slope may be propose...[继续阅读]

    7.1.1 Dam foundation treatment shall meet the requirements ofseepage stability,leakage control,static stability and dynamicstability,allowable settlement,differential settlement,etc.,and ensure the safety operation of the dam.Criteria and requirementsfor ...[继续阅读]

    5.2.1 Dam body shall be compacted and uniform,with sufficientshear strength,small compressibility,and shall meet thestandard of seepage control.The filling standard shall be rea-sonably defined,and be verified with production tests.5.2.2 For cohesive soil...[继续阅读]