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ROADSLIP
Road slips include all types of road shoulder collapses, such as soil slope collapse, embankment erosion and settlement of road surfaces by various causes.
It is also common along the national highways and they severely affect the traffic function.
MAIN FEATURES OF ROAD SLIPS
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Road slips have the following failure modes:
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A. Collapse of the valley side slope,
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B. Scouring of the valley side slope due to inappropriate drainage,
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C. Road body settlement.
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It may occur unexpectedly after heavy rainfall, but such indications as local deformation or settlement of the road shoulder are observable prior to complete collapse.
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In most cases, are less than 50m in width and occur on steep slopes on the valley side.
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Road slips usually occur in places where surface water concentrates during heavy rainfall, in some cases this is due to inappropriate design or construction of the wall foundation, subsurface drainage (leakage of water), insufficient road compression, or insufficient drainage facilities.