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

Single flemish bond, advantages and disadvantages in single flemish bond

advantages and disadvantages in single flemish bond

LEVELLING, WHAT IS FLYBBACK LEVELLING

WHAT IS FLYBBACK LEVELLING

What are the long spam bridge girders, What are the long spam bridge girder...

What are the long spam bridge girders The pre-tensioned construction finds more use and application in the construction of those structural concrete members which are of small

Prestressed concrete poles, Prestressed concrete poles In the past deca...

Prestressed concrete poles In the past decades, prestressed  concrete poles have become popular and have replaced the traditional poles made of timber, steel or reinforced  con

Enumerate the variation in tendon stress, Enumerate the Variation in tendon...

Enumerate the Variation in tendon stress In post-tensioned construction, several tendons are simultaneously stretched and anchored at the ends. It is assumed that all tendons

Centroid, How to calculate the centroid of parabola?

How to calculate the centroid of parabola?

Explain the dynamic or vibration tests, Explain the Dynamic or Vibration Te...

Explain the Dynamic or Vibration Tests Tests of this type, also known as sonic integrity test, involve sub- jecting the element to a single impulsive blow or cyclic load, and

Plant location and facility layout, Plant Location and Facility Layout: ...

Plant Location and Facility Layout: This unit explain the general definition of Plant location and facility layout. Several factors affecting the location decision of a firm o

Show the settlement due to excavation, Q. Show the Settlement due to Excava...

Q. Show the Settlement due to Excavation? If  an excavation is made in a sandy soil,  the structure founded near the excavation will be affected and it will cause extra settlem

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