Everything about Debris Flow totally explained
Debris flows are often referred to as mudslides,
mudflows,
jökulhlaups, or debris
avalanches. There is also a debris flow type that has a rocky front called 'the head' and a 'tail' like wet concrete;this type has been well reported in the scientific literature. Debris flows consist primarily of geological material mixed with
water. The composition of this type of flow is mainly
soil and other matter, such as
trees and
rock fragments, that are picked up as the flow moves down a
slope or
channel. Debris flows may be generated when hillside
colluvium or landslide material becomes rapidly saturated with water and flows into a
channel. Heavy
rainfall, snowmelt, or high levels of ground water flowing through cracked
bedrock may trigger a movement of this type. Debris flows and
floods may also occur when strong rains on
hill or
mountain slopes cause extensive erosion and/or what is known as "channel scour". Debris flows can be as thick as wet
mud mixed with rock, and can transport very large boulders. Debris flows may also eventually become thinner muddy flood waters as they deposit their heavier components. Geological debris flows
tend to move in pulses as
friction or other barriers are overcome during the flow. Sometimes earlier pulses or previous debris flows form
levees that channel the flow until they're breached. The presence of older levees indicates the recurrence and characteristics of debris flows in a particular area. This can be important information for developing land on what are known as
alluvial fans. They are very dangerous and should be avoided at all costs.
Theories and models of debris flows
Debris flows as mud flows
- Rheologically based models that apply to mud flows that are treated as a homogeneous liquid (Examples include: Bingham, visco-plastic etc
- The mixture theory of Iverson
- Dam break wave eg Hunt
- Roll wave Takahashi, Davies
Unsaturated 'rocky' or 'stony' debris flows
Progressive wave-Hungr
A type of translating rock dam-Coleman Further Information
Get more info on 'Debris Flow'.
|
External Link Exchanges
Do you know how hard it is to get a link from a large encyclopaedia? Well we're different and will prove it. To get a link from us just add the following HTML to your site on a relevant page:
<a href="http://debris_flow.totallyexplained.com">Debris flow Totally Explained</a>
Then simply click through this link from your web page. Our crawlers will verify your link, extract the title of your web page and instantly add a link back to it. If you like you can remove the words Totally Explained and embed the link in article text.
As long as your link remains in place, we'll keep our link to you right here. Please play fair - our crawlers are watching. Your site must be closely related to this one's topic. Any kind of spamming, dubious practises or removing the link will result in your link from us being dropped and, potentially, your whole site being banned. |
