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[1]PEI Zuan,PEI Xiang-jun,FU Shang-yu.Research on Shattered Landslide-Debris Flow Characteristics of Break and Prevention Measures[J].Research of Soil and Water Conservation,2011,18(05):217-220.

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Research on Shattered Landslide-Debris Flow Characteristics of Break and Prevention Measures

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 18 Number of periods: 2011 05 Page number: 217-220 Column: Public date: 2011-10-20

Title:: Research on Shattered Landslide-Debris Flow Characteristics of Break and Prevention Measures

Author(s):: PEI Zuan, PEI Xiang-jun, FU Shang-yu; State Key Laboratory of Geohazard Prevention & Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China

Keywords:: ‘5·12’ earthquake; landslide; debris flow; break; measure

CLC:: P624.22;P624.23

DOI:: -

Abstract:: A large of shattered mountain had been formated after the ‘5·12’ earthquake. The shattered mountain in the fallrain, once the instability under the aftershocks will be the formation of high potential landslides, blocking the lower part of the channel, the formation of barrier lake, with the static pressure and big erosion caused the barrier lake to break, the formation of highly destructive break debris flow. The Gan gully debris is a typical break debris flow. In Niujing gully, landslide occurred and barrier lake formed in the earthquake. In the impact from rainfall, the part residual body of Niujing gully has been glided, and caused the dam-break. Finally, triggered the outbreak of break debris flow on August 24, 2009. It was a typical geological hazard chains of landslide-debris flow. It has much possibility to break out debris flow again in case of heavy rain because of a large number of sources in the Niujing gully. So the following measures were proposed: protecting and draining are chief measures, and combining dam, timely dredging, restoration of vegetation, strengthening monitoring and warning in time.

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