CAJ | 학술논문

21世纪以来地质灾害频发形成大量堰塞坝。然而由于缺乏详细的资料，现在对堰塞坝特征和溃决等方面的研究受到很大的制约。同时，绝大部分堰塞坝寿命极短且勘察条件恶劣，很难在短时间内获取详细的坝体参数，因此急需基于有限的可用数据进行堰塞坝溃决参数快速评估。收集国内外1298例堰塞坝案例，对堰塞坝的分布、诱因、寿命、溃决模式、坝高、库容、成因等特征进行统计分析。通过对41例具有详细溃决信息的案例进行分析，建立坝体溃决参数(峰值流量、溃口尺寸、溃决时长)的快速评估模型，并将模型应用于唐家山堰塞坝的溃决分析。最后，基于大量案例数据进行堰塞坝模型和人工土石坝模型应用的对比分析，发现将人工坝模型用于堰塞坝会得到偏危险的结果，进而可能导致非常保守的决策和不必要的经济损失。该研究对于全面了解堰塞坝特征，尤其是对堰塞坝溃决参数评估和应急管控有一定的理论和实际价值。
21세기이래지질재해빈발형성대량언새패。연이유우결핍상세적자료，현재대언새패특정화궤결등방면적연구수도흔대적제약。동시，절대부분언새패수명겁단차감찰조건악렬，흔난재단시간내획취상세적패체삼수，인차급수기우유한적가용수거진행언새패궤결삼수쾌속평고。수집국내외1298례언새패안례，대언새패적분포、유인、수명、궤결모식、패고、고용、성인등특정진행통계분석。통과대41례구유상세궤결신식적안례진행분석，건립패체궤결삼수(봉치류량、궤구척촌、궤결시장)적쾌속평고모형，병장모형응용우당가산언새패적궤결분석。최후，기우대량안례수거진행언새패모형화인공토석패모형응용적대비분석，발현장인공패모형용우언새패회득도편위험적결과，진이가능도치비상보수적결책화불필요적경제손실。해연구대우전면료해언새패특정，우기시대언새패궤결삼수평고화응급관공유일정적이론화실제개치。
Serious geological disasters occurred worldwide at an alarming rate resulting in large number of landslide dams. Owing to lack of the detailed data,the studies of the characteristics and the burst of the landslide dams have been rather limited. Moreover,it is often very difficult to obtain the detailed data of landslide dams,since the life spans of landslide dams are rather short and the survey of landslide dams is normally arduous. Therefore,an efficient model of dam burst with limited parameters is urgently demanded for the risk assessment and the mitigation of landslide dams. A database with 1 298 landslide dams from all over the world was compiled. The characteristics of landslide dams including the locations,the triggers,the life spans,the failure modes,the dam heights,the lake volumes and the causes of landslide dams were analyzed based on the database. A dam burst model was established to estimate the burst parameters(the peak discharge,the burst size and burst time) based on 41 cases with the detailed information in the database. The model was applied to Tangjiashan landslide dam. Finally,comparison was made between the model for landslide dams and the one for man-made earth and rockfill dams and finding was made that using the models for man-made earth and rockfill dams to assess the landslide dams would over estimated the danger and resulted in a very conservative decision leading to unnecessary high economic cost.