摘要
土坝的稳定分析应采用上的线性抗剪强度指标，按非线性准则的稳定安全系数尚缺乏经验和依据；碾压式土石坝的稳定分析应采用瑞典圆弧法及其配套的安全系数；在１：１．３～１：１．４的坝坡下，面板坝垫层料掺天然河砂是不可取的；土的压实标准仍应采用南实处击实仪及施工条件系数法，压实度法不可取；土石坝填筑质量可从压实后的干容重与含水量合格率达到设计标准来控制。
For the present the stability analysis of earth dams is based on the linear shear strength. But the determination of the safety factor against the nonlinear shear strength still lacks experience and basis. The stability analysis of the rolled earth-rockfill dam should use the Swedish slipcircle method combined with the corresponding safety factors. The cushion material for the RC faced rockfill dam mixed with the natural river sand is not recommended. The soil compaction standard should use the compaction apparatus and construction condition al coefficient method, and the compaction degree method is not recommended. For quality control the compaction parameters for earth-rockfill dams may be dry unit weight incorPOrated with the percentage of moisture content up to the design standard.
出处
《水力发电》
北大核心
1994年第1期33-36,共4页
Water Power
关键词
土石坝
设计
安全
工程施工
earth-rockfill dam
design
construction
safety factor
dry unit weight
