1 thought on “How to judge landslide geological disasters. What are the characteristics from aspects?”
Henrietta
Identify the landslide The basic features of the landslide 1. There must be a certain landslide boundary and a rocky body below the landslide bed (that is, sliding surface, belt). " 2, the terrain and landforms of the original mountain slope (or slope) must be changed to form a unique" landslide landform "." 3, the structure of the rock and soil of the mountain slope must be destroyed and it must be destroyed. Primitive hydrological geological conditions. Formation is different from the " 4, the rock and soil structure and structure inside the peripheral slope, and change the infiltration channel and excretion conditions of groundwater.
In the mountainous slope zone, the landslide area often forms a circle chair -like terrain and grooved terrain, or the "invading" riverbed, cultivated land, house venues, roads, roads, roads, roads, roads, roads, roads, roads, roads, roads, roads, roads, and roads on the landslide are often formed. Edge and other phenomena. It often there are nasal convex hills or multi -level platforms. The platform and characteristics of the platform are different from the peripheral river. The sides of the landslide are often formed, and the phenomenon of dual ditch is often the same. It can be seen that the phenomenon of linear ground (such as roads, farming ground borders, etc.) is wrong. The on the landslide, there are often phenomena, ground cracks, "drunken forests", "horse knife trees" and house cracking, tilt,
2, rock and soil structure structure " This rock and soil in the range of landslides often disturb, loosen, squeeze and knead, water infiltration, wipe marks, etc. The characteristics of the layers, production conditions, and faults are inconsistent with the periphery. There are common tension sewing, tensile cracks (edges of both sides) and compression cracks that are filled with soil, stone dandruff or non -filled. Trees are loose, its layers are normal or upside down, tendencies are often, and small slump phenomena are generally occurred. 3, hydrogeological " Lits, water levels, spring water flow, etc.) are often destroyed, resulting in landslide , especially landslide groups have become complex hydrogeological complexes. The front edge of the sliding surface (with) with water -proof effects (revealing point) often has row and group of spring water overflowing. On the broken wall of the sliding body, spring water is often exposed or seepage of water . Sometimes, on both sides of the landslide or anterior edge, a special "mud ball" phenomenon will be formed. 4, the landslide boundary and landslide bed " This on the back of the landslide with a smooth layer of rubbing marks. The indigenous body of the front edge of the landslide is often squeezed out or tongue -like, often accompanied by rubbing The phenomenon of wrinkles, folds, or fractures (non -structure) is on both sides of the sliding rocky and soil. Cutting and other phenomena. This beds are often plastic deformation bands. The inside of the belt is mostly composed of mucous particles or sticky gravel. The sliding surface is generally smooth. The direction of the rubbing marks is consistent with the direction of sliding. Pay attention to this single -layer characteristics of the landslide scratch (that is, only the surface has the first layer to have), which can be different from the constructed cause of the cause. The above -mentioned landslide appearance and its internal structure structure sign should be a unified product of landslide. Its appearance can often reflect substantial. However, after long -term erosion and destruction, the characteristics of the landslide often change or even disappear. Sometimes it is accompanied by The illusion of other causes, which makes difficulties in investigation and research.
Identify the landslide
The basic features of the landslide
1. There must be a certain landslide boundary and a rocky body below the landslide bed (that is, sliding surface, belt). "
2, the terrain and landforms of the original mountain slope (or slope) must be changed to form a unique" landslide landform "."
3, the structure of the rock and soil of the mountain slope must be destroyed and it must be destroyed. Primitive hydrological geological conditions. Formation is different from the "
4, the rock and soil structure and structure inside the peripheral slope, and change the infiltration channel and excretion conditions of groundwater.
In the mountainous slope zone, the landslide area often forms a circle chair -like terrain and grooved terrain, or the "invading" riverbed, cultivated land, house venues, roads, roads, roads, roads, roads, roads, roads, roads, roads, roads, roads, roads, and roads on the landslide are often formed. Edge and other phenomena.
It often there are nasal convex hills or multi -level platforms. The platform and characteristics of the platform are different from the peripheral river.
The sides of the landslide are often formed, and the phenomenon of dual ditch is often the same. It can be seen that the phenomenon of linear ground (such as roads, farming
ground borders, etc.) is wrong.
The on the landslide, there are often phenomena, ground cracks, "drunken forests", "horse knife trees" and house cracking, tilt,
2, rock and soil structure structure "
This rock and soil in the range of landslides often disturb, loosen, squeeze and knead, water infiltration, wipe marks, etc. The characteristics of the layers, production conditions, and faults are inconsistent with the periphery. There are common tension
sewing, tensile cracks (edges of both sides) and compression cracks that are filled with soil, stone dandruff or non -filled. Trees are loose, its layers are normal or upside down, tendencies
are often, and small slump phenomena are generally occurred.
3, hydrogeological "
Lits, water levels, spring water flow, etc.) are often destroyed, resulting in landslide
, especially landslide groups have become complex hydrogeological complexes. The front edge of the sliding surface (with) with water -proof effects
(revealing point) often has row and group of spring water overflowing. On the broken wall of the sliding body, spring water is often exposed or seepage of water
. Sometimes, on both sides of the landslide or anterior edge, a special "mud ball" phenomenon will be formed.
4, the landslide boundary and landslide bed "
This on the back of the landslide with a smooth layer of rubbing marks. The indigenous body of the front edge of the landslide is often squeezed out or tongue -like, often accompanied by rubbing
The phenomenon of wrinkles, folds, or fractures (non -structure) is on both sides of the sliding rocky and soil. Cutting and other phenomena.
This beds are often plastic deformation bands. The inside of the belt is mostly composed of mucous particles or sticky gravel. The sliding surface is generally
smooth. The direction of the rubbing marks is consistent with the direction of sliding. Pay attention to this single -layer characteristics of the landslide scratch (that is, only the surface
has the first layer to have), which can be different from the constructed cause of the cause.
The above -mentioned landslide appearance and its internal structure structure sign should be a unified product of landslide. Its appearance can often reflect
substantial. However, after long -term erosion and destruction, the characteristics of the landslide often change or even disappear. Sometimes it is accompanied by
The illusion of other causes, which makes difficulties in investigation and research.