To prepare the various slopes in landslide Physical Model.
EQUIPMENTS REQUIRED Landslide flume, soil, water, sprinkler, stopwatch, rain gauge.
THEORY:
A landslide is the movement of rock, earth, or debris down a sloped section of land. Landslides are caused by rain, earthquakes, volcanoes, or other factors that make the slope unstable.
Landslides have three major causes: geology, morphology, and human activity.
Geology refers to characteristics of the material itself. The earth or rock might be weak or fractured, or different layers may have different strengths and stiffness.
Morphology refers to the structure of the land. For example, slopes that lose their vegetation to fire or drought are more vulnerable to landslides. Vegetation holds soil in place, and without the root systems of trees, bushes, and other plants, the land is more likely to slide away.
Human activity, such as agriculture and construction, can increase the risk of a landslide. Irrigation, deforestation, excavation, and water leakage are some of the common activities that can help destabilize, or weaken, a slope.
PROCEDURE:
- Prepare the apparatus by providing slope to provide gravity by placing it with some angle by the help of following expression.
We have given the length and height of box by using trigonometric ratios we can easily find the angle.
Say length = l and height = h.
=
Or =
- Add soil in the apparatus.
- Make slope at suitable angle.
- Compact soil if necessary.
- Start the sprinkler with the start of sprinker start the stop watch to note the time.
- Note down the times when cracks appear on the soil.
- Measure the quantity of water through the rain gauge.
RESULTS:
COMMENTS: