1. Strong impact debris flow in the desolate creek

Characteristics: Mudslides exhibit a cohesive linear movement, making it difficult to change direction. The impact force is strong, and they have a significant burying and destructive effect on buildings, especially those near the mouth of the gully, on the alluvial cone.
2. Debris flow barren stream
Characteristics: The mudslides that occur in this type of barren stream have a lower flow rate and impact force. The danger of sedimentation is greater than that of impact. In mountainous stone areas, the minimum critical slope for the formation of such fluid flow zones is 15°.
3. High Sediment Mountain Flood Wilderness Stream
Features: The stones move by pushing or jumping along the channel bed, and the sudden onset of sandy flash floods is very fierce. There are large scours and small silts, with scouring being the main action, affecting the foundations of buildings.
The erosion and destructive effects of the foundation are significant,
4. General Mountain Flood and Ruins Stream
Features: The harmful effect of this type of mountain flood is only manifested as scouring action. 1. Strong impact debris flow wild creek
Characteristics: Debris flows exhibit a cohesive linear movement, making it difficult to change direction. The impact force is large, and they have a significant burying and destructive effect on buildings, especially those near the mouth of the gully, on the alluvial cones.
2. Debris Flow Wasteland
Characteristics: The mudslides that occur in this type of barren stream have a lower flow rate and impact force. The harm caused by sedimentation is greater than that caused by impact. The minimum critical slope for the formation of this fluid circulation area in rocky mountainous regions is 15°.
3. High Sediment Flash Flood Canyon
Features: Stones move along the channel bed through rolling or jumping motion, sand-containing flash floods occur suddenly and with great force. Large impacts and small sediment deposition, with a focus on the impact, affect the foundation of buildings.
The erosion and destructive effects on the foundation are significant,
4. General Mountain Flood Ravine
Characteristics: The harmful effect of this type of mountain flood is only manifested as an erosion effect. 1. Debris flow in a strong impact.
Characteristics: Debris flows exhibit a cohesive straight-line movement, making them difficult to redirect. Their impact force is significant, causing considerable burial and damage to structures, especially those near the mouth of the alluvial cone.
2. Mudslide Wasteland
Characteristics: The debris flows that occur in this type of barren creek have a lower flow velocity and impact force. The harm caused by sedimentation is greater than that caused by the impact. The minimum critical slope for the formation of this fluid circulation zone in stony mountainous areas is 15°.
3. High Sediment Mountain Flood Wilderness Stream
Features: The stones move along the channel bed through rolling or jumping motion, and the sandy debris flows occur suddenly with great intensity. There are large flows and small deposits, with a focus on the flow, affecting the foundation of buildings.
The scouring and destructive effects of the foundation are significant.
4. General mountain flood ravine
Characteristics: The harmful effects of this type of mountain flood are only manifested as scouring effects. 1. Mudslides in wild streams with strong impact force.
Features: Debris flows exhibit a cohesive linear movement, making them difficult to divert. The impact force is substantial, and they can cause significant burial and damage to structures, particularly those near the mouth of the channel on the alluvial cone.
2. Mudflow Wasteland
Characteristics: The debris flows that occur in this type of barren stream have a lower flow velocity and impact force. The harm caused by sedimentation is greater than that caused by impact. The minimum critical slope for the formation of this fluid circulation area in rocky mountainous regions is 15°.
3. High sediment mountain flood wilderness stream
Features: Rocks move along the creek bed by sliding or jumping, with sudden and intense sand-laden flash floods. Heavy scouring and minor siltation, primarily scouring, impacting the foundations of buildings.
The erosion and destructive effects of the foundation are significant.
4. General Mountain Flood Ruins
Feature: The harmful effects of this type of mountain flood are only manifested as a scouring effect.