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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Amber Richhariya posted an Question
June 01, 2020 • 02:30 am
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30 points
30 points
- IIT JAM
- Geology (GG)
Why are the downslope movement of material disturbed by engineering structures
why are the downslope movement of material disturbed by engineering structures?
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Rahul kumar Best Answer
Downslope movement of materials can be restricted by engineering structures. All slopes are susceptible to mass movement hazards if a triggering event occurs. Thus, all slopes should be assessed for potential mass movement hazards. Mass movement events can sometimes be avoided by employing engineering structures to make the slope more stable. Most common of them are: Steep slopes can be covered or sprayed with concrete covered with a wire mesh to prevent rock falls. Retaining walls could be built to stabilize a slope. If the slope is made of highly fractured rock, rock bolts may be emplaced to hold the slope together and prevent failure. Drainage pipes could be inserted into the slope to more easily allow water to get out and avoid increases in fluid pressure, the possibility of liquefaction, or increased weight due to the addition of water. Oversteepened slopes could be graded or terraced to reduce the slope to the natural angle of repose. In mountain valleys subject to mudflows, plans could be made to rapidly lower levels of water in human-made reservoirs to catch and trap the mudflows. etc.