Question

precautions of landslide

Answer 1

PRECAUTIONS  TO   BE   TAKEN  TO   PREVENT    LANDSLIDES

Landslides can result from water saturation, slope modifications, and earthquakes. Techniques for reducing landslide and mudslide risks to structures include selecting flat land or stable slopes; constructing channels, drainage systems, retention structures, and walls; planting groundcover; and soil reinforcement using geo-synthetic materials, and avoiding cut and fill building sites. Redirecting water that might affect steep slopes would greatly decrease landslides. Water loosens soil that might be necessary for sustaining land. Some areas that are at a high risk of landslides are: 
·         Areas where wildfires or human modification of the land have destroyed vegetation;
·         Areas where landslides have occurred before;
·         Steep slopes and areas at the bottom of slopes or canyons;
·         Slopes that have been altered for construction of buildings and roads;
·         Channels along a stream or river; and
·         Areas where surface runoff is directed.

It would help to build structures away from these areas. 

There are also some precautions that can be taken before intense storms and rainfalls such as:
·         Assume that steep slopes and areas burned by wildfires are vulnerable to landslides and debris flows.
·         Learn whether landslides or debris flows have occurred previously in your area by contacting local authorities, a county geologist or the county planning department, state geological surveys or departments of natural resources, or university departments of geology.
·         Contact local authorities about emergency and evacuation plans.
·         Develop emergency and evacuation plans for your family and business.
·         Develop an emergency communication plan in case family members are separated.

These are all precautions that can be taken to prevent or stay away from landslides. 

Answer 2

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LandSlide➫ A mass of rock and earth moving suddenly & quickly down a steep slope.

♦ Water availability, quantity and quality can be affected by landslide.

♦ It caused when earthquakes occur on areas with steep slopes, many times the soil slips.


➧ Causes of Landslides:-
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❱ Heavy Rain
❱ Soil Erosion
❱ Earthquakes
❱ Deforestation
❱ Volcanic Activity

➧ Effects of Landslides:-
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❱ It cause serious damage to property.

❱ Destruction of infrastructure.

❱ Damage to land and loss of natural resources.

❱ It also block rivers and increase the risk of floods.

➧ Types of Landslide:-
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[1] Rock Slides:-

❱ A landslide involving bedrock in which the rock that moves remains largely intact for at least a portion of the movement.

[2] Earth Slides:-

❱ A Soil Flow landslide where the majority of the soil materials are fine-grained & cohesive.


➧ Precautions of Landslides:-
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❱ Stay away from the slide area.

❱ Stay alert and awake.

❱ If you are in areas susceptible to landslides consider leaving if it is safe to do so.

❱ Listen to local radio or television stations for the latest emergency information.

➧ Prevention of Landslides:-
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❱ Directing surface water sources away from the landslides.

❱ Draining ground water streams away from the landslides.

❱ Minimizing irrigation on the surface of the soil.

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