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@*土石流及大規模崩塌防災資訊網logo圖片*@ Debris Flow and Large-Scale Landslide Disaster Prevention Information Network logo image @*土石流及大規模崩塌防災資訊網名稱圖片*@ Debris Flow and Large-Scale Landslide Disaster Prevention Information Network name image
Debris Flow and Large-Scale Landslide Disaster Prevention Information Network

防災業務

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防災策略

Taiwan Sediment Disaster Management Strategy
Three Strategies for Disaster Prevention and Mitigation
Soft Measures for Disaster Avoidance

Establish an alert and evacuation mechanism to timely evacuate residents before a disaster strikes and reduce casualties.

Hard Measures for Disaster Mitigation

Use engineering methods to mitigate the impact of disasters on the environment while balancing safety and ecology.

Management for Disaster Departure

Strengthen land conservation work within the framework of national land planning to ensure sustainable land use.

Management Approaches
  • Disaster Avoidance: Potential 『debris flow』 Torrents and Potential Large-Scale Collapse Areas
  • Disaster Mitigation: Designated Soil and Water Conservation Areas
  • Disaster Departure: Geologically Sensitive Areas
The engineering treatment units primarily focus on the management of 『debris flow』, encompassing two major components: slope soil and water conservation measures and stream channel management measures. The former focuses on soil retention and water storage on slopes, including various conservation and revegetation works for hillside lands. The latter focuses on controlling and guiding the transport of sediment in streams, including methods such as interception, flow diversion, and sedimentation, along with torrent management measures such as 『check dam』, 『bed stabilization』, and flow alignment, to achieve the great effect of 『debris flow』 control.
Definition of 『Debris Flow』 Areas
Schematic Diagram of 『Debris Flow』 Geologically Sensitive Area
『Debris Flow』 Geologically Sensitive Area
(Geological Act)

Primary Definition: Possesses the geomorphological and hydrological conditions for 『debris flow』 occurrence

Evaluation Factor: Occurrence Potential

Scope Designation: Designated location and boundary

  • Nationwide General Survey
  • Designation and Information Release
  • Reference for Relevant Agencies' Operations
Schematic Diagram of Potential 『Debris Flow』 Torrents
Potential 『Debris Flow』 Torrents
(Disaster Prevention and Protection Act)

Primary Definition: Potential areas for 『debris flow』 disasters (with households under protection)

Evaluation Factor: Residential Area Hazard Level

Scope Designation: Designated torrents and areas of impact

  • Public Disclosure of 『Debris Flow』 Potential
  • Establishment of Alert Thresholds
  • Strengthening of Alert and Evacuation System Preparedness
  • Production of Evacuation Maps
  • Establishment of Information Systems
Schematic Diagram of Designated Soil and Water Conservation Area for Large-Scale Collapse
Designated Soil and Water Conservation Area for Large-Scale Collapse
(Soil and Water Conservation Act)

Primary Definition: Areas with a serious risk requiring immediate engineering work and land-use restrictions

Evaluation Factor: Priority of Control and Management

Scope Designation: Designated planning area (Disaster Potential Map)

  • Long-Term Soil and Water Conservation Plan
  • Plan Effectiveness Evaluation
  • Review of Regional Management Routes
  • Restriction on Development Activities
  • Special Review for Public Construction Projects
Definition of Large-Scale Collapse Areas
Schematic Diagram of Landslide and Landslip Geologically Sensitive Area
Landslide and Landslip Geologically Sensitive Area
(Geological Act)

Primary Definition: Possesses the terrain and geological conditions for large-scale collapse occurrence

Evaluation Factor: Occurrence Potential

Scope Designation: Designated location and boundary

  • Nationwide General Survey
  • Designation and Information Release
  • Reference for Relevant Agencies' Operations
Schematic Diagram of Potential Large-Scale Collapse Area
Potential Large-Scale Collapse Area
(Disaster Prevention and Protection Act)

Primary Definition: Potential areas for large-scale collapse disasters (with households under protection)

Evaluation Factor: Residential Area Hazard Level

Scope Designation: Designated potential area and area of impact

  • Public Disclosure of Large-Scale Collapse Potential
  • Establishment of Large-Scale Collapse Alert Thresholds
  • Strengthening of Alert and Evacuation System Preparedness
  • Production of Evacuation Maps
  • Establishment of Information Systems, etc.
Schematic Diagram of Designated Soil and Water Conservation Area for Large-Scale Collapse
Designated Soil and Water Conservation Area for Large-Scale Collapse
(Soil and Water Conservation Act)
在                                

Primary Definition: Areas with a serious risk requiring immediate engineering work and land-use restrictions

Evaluation Factor: 在                                     Priority of Control and Management

Scope Designation: Designated planning area (Disaster Potential Map)

    在                                  
  • Long-Term Soil and Water Conservation Plan
  • Evaluation of Long-Term Soil and Water Conservation Plan Effectiveness
  • Review of Specific Area Evacuation Routes
  • Restriction on New Development Activities
  • Special Review of Public Construction Design
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