landslide in hilly area of chittagong distric

1. L A N D S L I D E I N H I L LY A R E A S :
C H I T T A G O N G
U N I V E R S I T Y O F A S I A P A C I F I C
G E OT E C H N I C A L E N G I N E E R I N G C L U B

2. D E F I N IT ION:
A landslide, also known as a landslipor Mudslide, is a
form of mass wasting that includes a wide range of
ground movements, such as rockfalls, deep failure of
slopes, and shallow debris flows.Landslides can occur
underwater, called a submarine landslide,

3. CAU S E S :
• Landslides are mainly caused by gravity acting on weakened
rocks and soil that make up a sloping area of land.
• Both natural and human-related activities can increase the risk
for landslides.
• Water from heavy rainfall is a frequent trigger for landslides.

4. E F F E C T S O F L A N D S L I D E :
• Damage to the property.
• Block road or highways.
• They can extremely damaging the structure,
building, but are not usually life threating if
movement is slow.
• Deaths and injuries to people and animals.

5. L A N D S L I D E I N C H I T TAG O N G :
DATE LOCATION RAINFALL CONSEQUENSCENCES
11 JUNE 2007
MATI JHAMA COLONY
OF LALKHAN BAZAR,
CHITTAGONG
610mm
8 DAYS
6-11 JUNE
128 PEOPLE KILLED
100 INJURED
10 SEPT 2007
NABINAGAR IN
CHITTAGONG
452mm
7 DAYS
4-10 SEPT.
2 PEOPLE KILLED
18 AUG 2008
MATIJHAMA IN
CHITTAGONG
454mm
11 DAYS
8-18 AUG.
11 PEOPLE KILLED
25 INJURED
https://www.slideshare.net/JahangirAlam168/presentation-on-landslides-in-hilly-region-and-mitigation-measures-of-bangladesh

6. E X T E N T O F T H E
D I S A S T E R :
• As of 15 June 2017, officials were reporting a death toll as high as 152 in both Bangladesh, Chittagong
distric.
• The worst-hit district was Rangamati, where landslides buried hillside houses where people were
sleeping. At least 20 separate landslides hit the district. Up to 105 deaths were reported as of 15
June, and 5,000 homes were damaged. Roads in Rangamati remained inaccessible on 15 June. Many
roads in the district were washed away, leaving craters up to 15 metres (50 feet) deep, or heaped with
debris. The district's power grid was also destroyed. There were also fuel and food shortages as of 15
June, and Belayet Hossain Mia Belal, president of the district chamber of commerce and industry,
told the Daily Star that the food shortage could become dire in two to four days.
http://www.thedailystar.net/country/16-killed-bandarban-rangamati-landslides-1419571

7. E X T E N T O F T H E
D I S A S T E R :
• Twenty-nine people were reported dead in Chittagong and six in Bandarban. Roads in Bandarban were
cleared by 15 June, when 2,000 people were able to return to their villages to see the devastation.
• Two people were killed in Cox's Bazar, the town hosting thousands of Rohingya Muslim refugees.
• Houses in Khagrachari district were flooded nearly to the rooftops.
• A man and his daughter were killed in a landslide at Shatghoriapara village under Teknaf upazila.
• The deceased are Mohammad Selim, 40, and his three-year-old daughter Tushi.
A man and his daughter were killed in a landslide at Shatghoriapara village under Teknaf upazila early Wednesday.
http://www.dhakatribune.com/bangladesh/nation/2017/06/13/landslides-kill-11-bandarban-rangamati-chittagong/

8. WAY TO REDUCE LANDSLIDE:
• Covering the land with impermeable membranes in order to
prevent water infiltration in the landslide;
• Directing surface water sources away from the landslides;
• Draining ground water streams away from the landslides;
• Minimizing irrigation on the surface of the soil.
• Infrastructure aspects.
• Environmental aspects.
• Don’t locate swimming pools near a slope.
http://www.govtech.com/em/emergency-blogs/disaster-zone/5-landslide-prevention-tips-plus-when-to-get-out.html

9. WE SHOULD PROTECT OUR CHITTAGONG DISTRIC FROM LANSLIDE WHICH IS KNOWN AS
‘BEAUTY OF BEACH’