Table of Contents
What are the precautionary measures of landslides?
Landslide Preparedness and Prevention. Pulling away from the building of outside walls or stairs. Slow development of widening cracks on the ground or on paved areas such as streets. Tilting or moving of fences, retaining walls, utility poles, or trees.
How can we stop landslides in India?
Inspect drains for – litter, leaves, plastic bags, rubble etc. Keep the weep holes open. Grow more trees that can hold the soil through roots, Identify areas of rock fall and subsidence of buildings, cracks that indicate landslides and move to safer areas.
Which area is exposed to landslide hazard?
Studies on global distribution of landslide hazard, as well as detailed 17 assessment of the reported occurrence of landslide disasters in the CRED-EM database, suggest that the most exposed countries to landslide risk are located in south Asia, along the Himalayan belt, in east Asia, south-eastern Asia, and in Central …
Which landslide is most prone area in India?
The two regions most vulnerable to landslides are the Himalayas and the Western Ghats.
How can you protect your home and surroundings from landslide?
You can’t stop or change the path of a debris flow. However, you may be able to protect your property from floodwaters or mud by use of sandbags, retaining walls or k-rails (Jersey barriers). In mud and debris flow areas, consider building channels or deflection walls to try to direct the flow around buildings.
What measures can be taken to reduce the impact of floods and landslides?
Afforestation should be promoted and intensive grazing by domestic animals should be avoided. Construction of roads and dams should be restricted to fragile areas. People should be aware of the cause of the landslide. Terrace farming on the hills slows down the rate of landslides.
How can we prevent avalanches and landslides?
Protective structures are the most common measure in such cases. Embankment walls that can lead any slide mass material (snow, soil, rock, and flow debris etc.) away from exposed objects, or retaining walls which stops the avalanche or landslide and thereby protect exposed objects are examples of such safeguards.
How do you manage a landslide disaster?
If outdoors, try to get to the nearest high ground in the direction away from the path of the landslide. If you are at a river, be prepared to leave the area immediately if there are signs that a landslide has occurred higher upstream. Don’t try to take your belongings, just leave the area as fast as possible.
What measures can be taken to reduce the impact of flood and landslides?
Afforestation should be promoted and intensive grazing by domestic animals should be avoided. Construction of roads and dams should be restricted to fragile areas. People should be aware of the cause of the landslide.
Which state is most affected by landslides?
The Northeastern region is badly affected by landslide problems of a bewildering variety. Landslides in the Darjeeling district of West Bengal as also those in Sikkim, Mizoram, Tripura, Meghalaya, Assam, Nagaland and Arunachal Pradesh pose chronic problems, causing recurring economic losses worth billions of rupees.
What are the preventive measures of flood?
10 measures to prevent (urban) flooding
- Create a ‘sponge city’
- Green roofs/rooftop gardens.
- Create flood plains and overflow areas for rivers.
- Separating rainwater from the sewer system.
- Install water infiltration and attenuation systems.
- Keep the sewer system clean, so it can do its job.
How floods can be prevented?
Floods can be controlled by redirecting excess water to purpose-built canals or floodways, which in turn divert the water to temporary holding ponds or other bodies of water where there is a lower risk or impact to flooding. Channelisation is a deliberate attempt to alter the natural geometry of the river.
What measures can be taken to reduce the hazards posed by avalanches?
Structural measures include diversion structures, dams, retarding structures and starting zone structures design to prevent avalanche initiation. Forest management can also be used to mitigate avalanche hazards.
How is avalanche control done?
Additionally, the avalanches can be controlled by special fences, nets, or artificial walls that can impact what the snowfall is going to do and which direction the snowfall will go in. Explosives will loosen small buildups of snow, which will prevent larger buildups from occurring.
What are the preventive measures for flood?
What measures can be taken to reduce the impact of floods?
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- Introduce better flood warning systems.
- Modify homes and businesses to help them withstand floods.
- Construct buildings above flood levels.
- Tackle climate change.
- Increase spending on flood defences.
- Protect wetlands and introduce plant trees strategically.
- Restore rivers to their natural courses.
What is the main cause of landslide?
Landslides are caused by disturbances in the natural stability of a slope. They can accompany heavy rains or follow droughts, earthquakes, or volcanic eruptions. Mudslides develop when water rapidly accumulates in the ground and results in a surge of water-saturated rock, earth, and debris.
What are the three methods of flood control?
flood control
- Levees, Floodwalls, and Seawalls.
- Movable Barriers.
- Dams and Spillways.
- Diversion Channels.
- Channel Improvements.
What are flood control measures?
These methods include planting vegetation to retain excess water, terrace slopes to reduce slope flow, and building alluviums (man-made channels to divert water from flooding), construction of dykes, dams, reservoirs or holding tanks to store extra water during flood periods.
What is flood causes and prevention?
A lack of vegetation can cause flooding. Vegetation can help slow runoff and prevent flooding. When there is a lack of vegetation, there is little to stop water from running off and overflowing river banks and streams. Melting snow and ice is another common reason for flooding.
What is the Landslip Preventive Measures Committee?
The programme of Government slopes selected for Detailed Studies and upgrading works is referred to an inter-departmental committee, the Landslip Preventive Measures Committee (LPMC) for consideration, advice and agreement. The LPMC also considers nominations for upgrading works by Government departments responsible for slope maintenance.
What are the best practices for slope landscaping?
Existing trees are preserved and vegetation is used as cover to slopes and mitigation measures as far as practicable. Where the use of hard cover is unavoidable, landscape measures are implemented to minimize its visual impact. A number of technical guidelines on good practice in slope landscaping works have been published by the GEO.
Do man-made slopes pose the greatest landslide risk in Hong Kong?
Until 2010, the work (which was implemented under a Landslip Preventive Measures Programme) focused on substandard man-made slopes that posed the greatest landslide risk in Hong Kong. Given more than 40 years of sustained efforts, the landslide risk arising from man-made slopes has been reduced considerably.