| 田浩飞,杨要得,王佳,栾振荣,杨志全,袁利伟,郭延辉,刘恒，麟,陈文，静.北京延庆大熊洞单沟泥石流发育特征及防治措施[J].矿产勘查,2025,16(S2):271-280 |
| 北京延庆大熊洞单沟泥石流发育特征及防治措施 |
| Development characteristics and prevention measures of single-channel debris flow in Daxiongdonggou，Yanqing，Beijing |
| 投稿时间：2024-07-27 |
| DOI：10.20008/j.kckc.2025s2036 |
| 中文关键词: 泥石流 动力学特征 危险区预测 形成条件 |
| 英文关键词: debris flow dynamic characteristics hazardous area prediction conditions of formation |
| 基金项目:本文受国家自然科学基金项目(41861134008)、云南省“兴滇英才支持计划”产业创新人才专项(yfgrc202408)、云南省基础研究计划(202401AV070010、202401AU070142、202501AT070358、202501AS070107、202501AS070124)、云南省教育厅科学研究基金项目(2024J0078)和自然资源部深时地理环境重建与应用重点实验室开放基金资助项目(DGERA20251009)联合资助。 |
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| 中文摘要: |
| 对于北京山区而言，破坏最严重、危害最大的地质灾害当属泥石流，再加上近年来受强降雨影响，泥石流灾害频发。为减少泥石流带来的伤害，本文选取大熊洞沟为研究区，根据野外调查及相关数据，描述了泥石流的形成条件和基本特征，预测了沟域下游危险区范围，并提出了针对性防治建议。研究结果显示:沟内松散堆积物可分为 3类:冲洪积、残坡积和人工堆积，动态储量为 66. 89×104 m3。由洪峰值流量和一次泥石流冲出固体物质总量确定该泥石流规模为中型；在 4个降雨工况下( 10a、20a、50a和 100a一遇)，危险区面积分别为 0. 0025 km2、0. 0032 km2、0. 0043 km2、0. 0052 km2。发展阶段属于发育期。经过深入探讨，发现该泥石流沟爆发中型泥石流的概率较高，将对下游道路和村庄居民造成危害。本研究成果可以为延庆区同类型的单沟泥石流研究和灾害防治提供参考依据。 |
| 英文摘要: |
| For the mountainous areas of Beijing，the most destructive and harmful geological disasters are mudslides，which，coupled with the impact of heavy rainfall in recent years，have been frequent. In order to reduce the damage caused by mudslides，this paper selects Daxiongdonggou as the research object，describes the formation conditions and basic characteristics of mudslides according to the field investigation and related data， predicts the development trend of mudslides，and puts forward effective prevention and control suggestions. Theresults of this study show that loose deposits of Daxiongdonggou can be categorized into three types:alluvial and diluvial deposits，residual-slope deposits，and artificial deposits，with a dynamic reserve of 66. 89×104 m3. From the peak flow value and the total amounts of solids washed out by the primary debris flow，it can be determined that the size of this debris flow is medium. By varying rainstorm frequencies(10-，20-，50-，100-year rainfall events)， the respective hazardous areas are measured to be 0. 0025，0. 0032，0. 0043，and 0. 0052 km2. The stage of debris flow development is considered to be a component of the developmental phase. After in-depth discussion，it is found that the probability of medium-sized debris flow breaking out in the debris flow ditch is very high，which will cause harm to downstream roads and village residents. The findings of this study can serve as a reference pointfor future research and disaster prevention efforts related to similar single gully debris flows in Yanqing District. |
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