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

Weigh batching, measurement of gauge box for sand ?

measurement of gauge box for sand ?

Compaction to freshly placed concrete piles, Compaction to freshly placed c...

Compaction to freshly placed concrete piles  In general practice, reliance is placed on the self-compaction of particularly designed concrete mixes to achieve adequate compact

Simply calculation, If i want to find D, and D=2a, then a=1-5 how can i s...

If i want to find D, and D=2a, then a=1-5 how can i show the ans is:2&4&6&8&10

Explain total dynamic head (tdh), Total Dynamic Head: (TDH) y-axis plo...

Total Dynamic Head: (TDH) y-axis plot point related to each x-axis flow rate along the system curve plot. TDH = h a = TSH + h f + v 2 /2g       v 2 / 2g usually small

Closed traverse, closed traverse maths problems at list 5 station

closed traverse maths problems at list 5 station

Define compression - actions in pot bearings, Define Compression - Actions ...

Define Compression - Actions in POT Bearings? Vertical load is carried through the piston of the bearing and it is resisted by the elastomeric pad. Elastomer is incompressible,

Method of construction of a bored cast-in-situ concrete pile, Q. Method of ...

Q. Method of construction of a bored cast-in-situ concrete pile? Ans. - Bored cast-in-situ concrete pile - A guide casing of 3 to 4 m length is provided on top of the bore hole

Surface drainage, Surface Drainage: Surface drainage deals with arran...

Surface Drainage: Surface drainage deals with arrangement for quickly leading the water from rainfall away from the surface of pavements, shoulders, slopes of embankments and

Sampling distribution and approximations of distributions, Sampling Distrib...

Sampling Distribution And Approximations Of Distributions: 1) Learnt three approaches for deriving the probability distributions of functions of one or more random variables v

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