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Evolution Model of Zhaizigou Massive Debris Flow Disaster Chain in Zhouqu County, Gansu Provinces, and Related Risk Prevention & Control Countermeasures
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Gaofeng WANG1, 2, Hao LI1, 2, Ruidong LI3, Kai CONG4, Xiaopeng FAN3, Zongliang CHEN1, 2, Bing DENG1, 2, *, Youning XU5, Hanchuan DONG1, 2
Northwestern Geology | 2026, 59(2) : 192 - 206
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Northwestern Geology | 2026, 59(2): 192-206
Evolution Model of Zhaizigou Massive Debris Flow Disaster Chain in Zhouqu County, Gansu Provinces, and Related Risk Prevention & Control Countermeasures
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Gaofeng WANG1, 2, Hao LI1, 2, Ruidong LI3, Kai CONG4, Xiaopeng FAN3, Zongliang CHEN1, 2, Bing DENG1, 2, *, Youning XU5, Hanchuan DONG1, 2
Affiliations
  • 1Center for Hydrogeology and Environmental Geology of China Geological Survey, Baoding 071051, Hebei, China
  • 2Observation and Research Station of Geological Disaster Monitoring and Early Warning in the Three Gorges Reservoir Area, the Ministry of Natural Resources, China, Chongqing 404100, China
  • 3Gansu Institute of Engineering Geology, Lanzhou 730030, Gansu, China
  • 4Geological Environment Monitoring Institute of Gansu Province, Lanzhou 730050, Gansu, China
  • 5Xi’an Center of China Geological Survey, Xi’an 710119, Shaanxi, China
Published: 2026-04-20 doi: 10.12401/j.nwg.2024116
Outline
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Bailong River Basin is one of the most developed and serious areas of debris flow disaster chain in China. In order to support and serve the disaster prevention and mitigation of the large geological chain in Bailong River Basin, the debris flow in Zhaizigou, Zhouqu County, Gansu Province, was selected as the research object. Through on-site survey and mapping, combined with multi-period remote sensing data, laboratory test and numerical simulation results, the development characteristics, formation conditions and evolution model of debris flow were discussed in depth. Finally, the paper puts forward some suggestions on preventing the risk of debris flow disaster chain.The results show that: Zhaizigou is a gully type debris flow, the longitudinal slope of the gully bed is 324.5‰, and the high level source amount is 2129.23×104 m3. The key disaster landform of Zhaizigou is unique, the necessary disaster formation and disaster control structure are complex, and the important triggering conditions are obvious, which has all the conditions for the occurrence of a huge debris flow disaster chain. The evolution model of the disaster chain is the disaster chain of high level collapse-barrier body collapse-debris flow, barrier lake and outburst flood. On this basis, it is proposed that the risk prevention and control of the disaster chain of the huge mudflow in Bailong River basin should focus on strengthening the disaster chain investigation and identification ability, tackling the key disaster chain monitoring, early warning, forecasting and risk prevention and control technology, and strengthening the disaster chain project disaster prevention and reduction and emergency disposal capacity. Finally, according to the characteristics and key problems of different risk areas from the perspective of river basin, the risk prevention and control model of Zhaizigou debris flow disaster chain risk prevention and control is constructed, which can provide reference for the disaster prevention and reduction of similar massive debris flow disaster chain in western mountainous areas.

massive debris flow disaster chain  /  Zhaizigou debris flow  /  evolution model  /  risk prevention and control  /  Bailong River Basin
王高峰, 李浩, 李瑞冬, 丛凯, 樊小鹏, 陈宗良, 邓兵, 徐友宁, 董翰川. 舟曲县寨子沟特大泥石流灾害链演化模式及风险防控对策. 西北地质, 2026 , 59 (2) : 192 -206 . DOI: 10.12401/j.nwg.2024116
Gaofeng WANG, Hao LI, Ruidong LI, Kai CONG, Xiaopeng FAN, Zongliang CHEN, Bing DENG, Youning XU, Hanchuan DONG. Evolution Model of Zhaizigou Massive Debris Flow Disaster Chain in Zhouqu County, Gansu Provinces, and Related Risk Prevention & Control Countermeasures[J]. Northwestern Geology, 2026 , 59 (2) : 192 -206 . DOI: 10.12401/j.nwg.2024116
Appendix
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Year 2026 volume 59 Issue 2
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Article Info
doi: 10.12401/j.nwg.2024116
  • Receive Date：2024-06-10
  • Online Date：2026-09-16
  • Published：2026-04-20
Article Data
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History
  • Received：2024-06-10
  • Revised：2024-08-16
  • Accepted：2024-12-03
Affiliations
    1Center for Hydrogeology and Environmental Geology of China Geological Survey, Baoding 071051, Hebei, China
    2Observation and Research Station of Geological Disaster Monitoring and Early Warning in the Three Gorges Reservoir Area, the Ministry of Natural Resources, China, Chongqing 404100, China
    3Gansu Institute of Engineering Geology, Lanzhou 730030, Gansu, China
    4Geological Environment Monitoring Institute of Gansu Province, Lanzhou 730050, Gansu, China
    5Xi’an Center of China Geological Survey, Xi’an 710119, Shaanxi, China
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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