Landslide (land slides) is a natural phenomenon of wear and tear of some kind. To cause damage to the area that is the hills or mountains with the slope, because of the lack of balance in the balance of the area.Elements of geology that area from high to low. Landslides often occur in the case of heavy rain a lot in mountainous areas and the mountain to absorb water, until the electrolysis conditions, equipping and created a dam, (environnetDepartment of environmental quality). Can be classified according to the landslide deformation has 3 type is
1). Landslides moving slowly, called Creep such as Surficial Creep
.2) landslides moving quickly called Slide or Flow such as Surficial Slide
3) landslides เคลื่อนตัวอย่าง abruptly. Called Fall Rock Fall
.Landslides in Thailand. Most often occur after very heavy rain around the mountain, which is the river source area on the countries, which have the severity of the landslides. :
1) of rain on the mountain!2) the slope of the mountain. 3) the integrity of the forest
4) geological features of the mountain!Chronology of the landslide is when the heavy rain water into the soil quickly, while the saturated soil water adhesion between the soil mass is reduced. The water level below the surface is higher than that of soil resistance to flow down.Down along the slope of the hillside. When changing the slope will be a pop, and are the first point of slippage of the soil. When the soil and will be continuing fluid up according to the hillside.
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