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Can mass movement be controlled?

Can mass movement be controlled?

Engineering solutions include barriers and retaining walls, drainage pipes, terracing the slope to reduce the steepness of the cuts, and immediate revegetation. Rockfalls can be controlled or eliminated by the use of rock bolts, cables, and screens and by cutting back slopes to lesser gradients.

Can we prevent mass wasting?

We cannot prevent mass wasting, however, in many situations there are actions we can take to reduce or mitigate the damaging effects of mass wasting on people and infrastructure. Where we can neither delay nor mitigate mass wasting, we may consider trying to initiate the slope failure in a controlled manner.

What are five things that can trigger a mass movement?

Major Triggers for Mass Wasting: Water, Slopes, Vegetation Removal & Earthquakes.

What factors affect mass movement?

Such factors include: weathering or erosional debris cover on slopes, which is usually liable to mass movement; the character and structure of rocks, such as resistant permeable beds prone to sliding because of underlying impermeable rocks; the removal of the vegetation cover, which increases the slope’s susceptibility …

What is the most important factor in causing mass movements?

Gravity is the main force responsible for mass movements. Gravity is a force that acts everywhere on the Earth’s surface, pulling everything in a direction toward the center of the Earth. On a flat surface, parallel to the Earth’s surface, the force of gravity acts downward.

What is the slowest type of mass movement?

The slowest type of mass movement is creep. This occurs on slopes where there is significant plant or tree growth.

How do humans can contribute to mass wasting?

One of the most common anthropogenic causes of mass wasting is road construction, and this applies both to remote gravel roads built for forestry and mining and large urban and regional highways. Road construction is a potential problem for two reasons.

Which of the following is the fastest mass movement?

Rockfalls occur when rock fragments fall from steep cliffs. This is the fastest type of mass movement. The fragments may be as tiny as pebbles or as huge as giant boulders.

How do humans affect mass movement?

Humans can contribute to mass wasting in a few different ways: Excavation of slope or its toe. Loading of slope or its crest. Drawdown (of reservoirs)

What are 4 causes of mass movement?

The causes of mass wasting include an increased slope steepness, increased water, decreased vegetation and earthquakes. One of the types of mass wasting that is an example of the slope failing is a slump. This is the sliding of coherent rock material along a curved surface.

What are the four factors affecting mass wasting?

Factors that change the potential of mass wasting include: change in slope angle, weakening of material by weathering, increased water content; changes in vegetation cover, and overloading.

What two factors are significant to mass movements?

Mass wasting occurs when a slope fails. A slope fails when it is too steep and unstable for existing materials and conditions. Slope stability is ultimately determined by two principal factors: the slope angle and the strength of the underlying material.

What are the effects of mass movement on people?

The effects are also greater in underdeveloped countries that lack zoning laws, information and disaster preparedness. Mass movement is the movement of surface material, such as soil, rocks and debris, caused by gravity and other underlying conditions, such as water, wind, ice and human activity.

Why does mass movement occur on a hillside?

This mass movement typically occurs along hillsides and mountains due to the influence of gravity and can happen very slowly or very quickly. Mass movement can occur due to a variety of reasons. The most basic reason is the angle of repose or slope of the hillside.

What is the difference between mass wasting and mass movement?

Mass movement is the relocation of surface material from a higher point along a slope to a lower point. In geology, the terms mass movement and mass wasting are used interchangeably.

What are the different types of mass movements?

Although many types of mass movements are included in the general term “landslide,” the more restrictive use of the term refers only to mass movements, where there is a distinct zone of weakness that separates the slide material from more stable underlying material.