CAJ | 학술논문

在峡谷河流区，危岩失稳产生的崩塌堆积体堵塞河道形成堰塞湖，进而甚至出现溃决行成洪水，是崩塌重要的次生灾害链之一。对特定的某一崩塌而言，分析其未来发生时可能形成的堰塞湖规模及其影响范围就显得尤为重要。本文结合贵州开阳某危岩实例，在阐述危岩所处地质环境条件和危岩特征基础上，计算分析了可能形成的堰塞湖高度、水体体积、回水影响范围，以及一旦溃决形成洪水可能影响的范围，取得的成果可直接用于该处地质灾害风险评价中。
재협곡하류구，위암실은산생적붕탑퇴적체도새하도형성언새호，진이심지출현궤결행성홍수，시붕탑중요적차생재해련지일。대특정적모일붕탑이언，분석기미래발생시가능형성적언새호규모급기영향범위취현득우위중요。본문결합귀주개양모위암실례，재천술위암소처지질배경조건화위암특정기출상，계산분석료가능형성적언새호고도、수체체적、회수영향범위，이급일단궤결형성홍수가능영향적범위，취득적성과가직접용우해처지질재해풍험평개중。
In mountainous river area, the barrier lake and its induced flood is one of the most important disaster chains for dangerous rockmass or avalanche. To assess the geohazard risk, analysis on influence area of barrier lake is needed. In this paper, taking a dangerous rockmass in Kaiyang, Guizhou as an example, based on the geological conditions and dangerous rockmass feature investigation, the dam height, area, volume, and flooding area of the potential barrier lake were discussed in detail. The results can be used directly in later geohazard risk assessment.