ZHENG Da,ZHAO Hua,DENG Hui.Study On Debris Flow Hazard on the Dam of a Hydropower Station[J].Research of Soil and Water Conservation,2007,14(05):16-19.
某水电站坝区泥石流危险性研究
- Title:
- Study On Debris Flow Hazard on the Dam of a Hydropower Station
- 分类号:
- P642.23
- 摘要:
- 五里沟与咱里沟是大渡河流域某拟建水电站坝区的泥石流沟，在自然和人为因素的触发下有发生大规模泥石流的可能，将对水电工程的设计施工以及今后运行的持续稳定造成重大影响。危险性评价结果表明，咱里沟属于低度危险的泥石流沟，而五里沟属于中度危险的泥石流沟，可能造成重大灾害与严重的危害。进一步分析，在施工期泥石流对拟建水电工程的施工场地与设备影响突出，对工程的安全构成威胁。水库蓄水后，产生较大规模涌浪的可能性不大，泥石流对水电站正常的发电和安全运作造成的影响也较小。
- Abstract:
- Zanli gully and Wuli gully are the debris flow gullies on the dam of a hydropower station in the Dadu River,under the natural and artificial factors,there will be possibly large-scale debris flow,which will bring about fatal impact on the hydro-power station during the engineering construction and operation.Hazard assessment’ result indicates that Zanli gully is at a low hazard level,and Wuli gully is at a moderate hazard level that brings about possibly fatal hazard and serious harm.After more analysis,there is a conclusion that debris flows will influence extrusively on construction ground and equipment of the hydropower station during the engineering construction and make threat to engineering safety.After inundation of the reservoir,the possibility of surge wave is little and debris flows have less influence on natural generate electricity and safe operation of the hydropower station.
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备注/Memo
收稿日期:2006-8-11。
基金项目:国家自然科学基金项目（40402025）
作者简介:郑达（1977- ），男，助教，在职博士生，主要从事岩土工程和地质工程研究。