Landslides induced by rainfall, Civil Engineering

Assignment Help:

Landslides induced by rainfall

After rainfall, groundwater pressure is built up and this elevates ground water table. Water inside the pores of soil reducesthe effective stress of soils. As shear strength of soils is represented by the subsequent relations:

Shear strength = cohesion + effective stress x tan where Φ is the friction angle of soils

Therefore the presence of water causes a decrease of shear strength of soils and this may lead to landslide. Instead rainfall creates immediate instability by causing erosion of slop surface and results in shallow slope failure by infiltration. Additionally the rain may penetrate slope surface openings and forms flow paths. Consequently this may weaken the ground.


Related Discussions:- Landslides induced by rainfall

Shear slump and collapse slump in slump tests, Question What is sign of sh...

Question What is sign of shear slump and collapse slump in slump tests? Answer There are three varieties of slump that might occur in slumps test, specifically, slump, shear

Determine the thermal stress in the bar, Determine the thermal stress in th...

Determine the thermal stress in the bar: A stepped bar made of aluminum is held between two supports. The bar is 900 mm in length at 38ºC, 600 mm of which is having a diameter

Fire resistance of steelwork, Q. Fire resistance of steelwork Because ...

Q. Fire resistance of steelwork Because of the high thermal conductivity of steel, temperature of unprotected steel is almost the same as temperature of fire. Because the yiel

Foundation at Different Levels, Foundation at Different Levels on soft rock...

Foundation at Different Levels on soft rock. what is minimum distance in two between footing ?

#tiphysics in civil engineering tle.., Ask questapplication of physics in c...

Ask questapplication of physics in civil engineering ion #Minimum 100 words accepted#

Pump selection, How do you determine pipe size and select a pump for 100 li...

How do you determine pipe size and select a pump for 100 liter per second flow?

Explain the unit hydrograph method, Q.- Explain the Unit hydrograph Method ...

Q.- Explain the Unit hydrograph Method for estimation of peak flood discharge in a river. Ans.- Unit hydrograph Method A hydrograph is a representation of hydraulic cha

Fluid Mechanics, A 4-m-long, 6-cm-diameter cylinder placed normal to the fl...

A 4-m-long, 6-cm-diameter cylinder placed normal to the flow is used to measure the velocity of an air stream. If a force of 50 N is measured, the air velocity is nearest (for air

Why we use air valves, Q. Why we use Air Valves? Air Valves - Air valve...

Q. Why we use Air Valves? Air Valves - Air valves of proper size and pressure rating at summits. Air valves ensure the safety of the pipe line against collapse when at points o

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd