Factors that cause or sensitive areas. Or there is a risk of landslides is divided into two main categories
: 1. natural causes
2. caused by human actions,
natural causes
soil strength ◾
◾ structure of the earth. The different layers of soil, water, purchase a pass. The floor is not impermeable. To make liquid water underground until the soil on slopes. The flow
◾ slope of the area
◾ rainfall. Rainfall is a long time (more than 100 mm per day)
◾ season
◾ trees destroyed by forest fires or drought
◾ earthquake
◾ tsunami
◾ volcano
◾ change of groundwater
◾ corrosion of the underlying rocks.
◾ erosion of river coastline and continental shelf
caused by human action
◾ excavation hillside. Slope or hillside The expansion of agricultural plain in the land development, road construction, mining, etc.
◾ sucking sand from the river. Or on land
◾ digging deep. For the construction of the building's basement
◾ compacted land. For construction The movement of soil in the vicinity
◾ groundwater pumping groundwater overuse or compressing underground water
◾ land fills. For construction Adds weight on the mountain Or ridges
◾ the deforestation. To expand cultivation areas
◾ the reservoir. Which increases the weight on the mountain And seepage into the ground too much balance
◾ changes of water. Groundwater system imbalance
◾ effluent from Sathorn Gardens public housing
◾ shock such as quarrying
preparedness and prevention
before the accident. Before the accident, notice that
◾ heavy to very heavy rainfall (more than 100 mm per day)
◾ creek water levels rise rapidly
◾ very turbid water in the creek. Or a red opaque Show that sediment flowing down the slope
◾ long noisy when it rains compounded abnormal noise from the mountains and ravines
scene between
◾ If heavy rains non-stop for several days. The soil on the mountain may collapse should be evacuated or fled to higher. And immediately inform the years make known as soon
◾ If falling into the water, do not swim away with. It may be dead trees Or rocks, mud flows with shock and death. And a large tree, then climb the nearest island to escape the water
after the accident
◾ Do not build dwellings. Criss Creek near water or excessive
◾ Do deforestation. And to plant trees to absorb water
◾ fate held for walk-eye view of the situation surrounding villages to observe anything unusual the night
◾ monitoring and News weather radio station Local Voice broadcast tower regularly. village Closely
◾ reserves food, drinking water, medicines and emergency supplies.
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