Landslides induced by rainfall, Civil Engineering

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.

Posted Date: 8/7/2013 5:13:52 AM | Location : United States

Related Discussions:- Landslides induced by rainfall, Assignment Help, Ask Question on Landslides induced by rainfall, Get Answer, Expert's Help, Landslides induced by rainfall Discussions

Write discussion on Landslides induced by rainfall
Your posts are moderated
Related Questions
Desirable Characteristics of a Pavement: In order to fulfill the above function, the pavement has to have the following desirable properties : (a) It should be structurall

Requirements of Good Building Stones          Here described requirements of good building stones: Strength: The stone should be capable to resist the load coming on

Cross-sectional Elements: The terms used in the cross-section of a road are : Carriageway The portion where traffic moves. Shoulder The portion outside the ca

Question While designing lateral resistance of piles , have to engineers only use earth pressure against pile caps simply? Answer In case of designing lateral loa

reparation of subgrade in sqm for a road of span 12 km and width 5.25m,with shoulders of 0.75m span on both the sides...considering extrawidening too......plz help...i m preparing

what do mean by outstand element of compression flange, internal element of compression flange and web general

Q. Method of observation by satellite? The difference between a photographs and imageries needs to be understood first. A photograph covers a specific area within its view and

Sketches for English bond, Stretcher bond, Header bond, Flemish bond in first & second layer plan, elevation and 3 dimensional view of brick bond.

A load of 3000 kN is being taken by a square column footing. Side of the column is 3 m, footing rests on a silty soil with a Poisson's ratio = 0.3. Modulus of elasticity of the soi