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

Define superposition method, Define Superposition Method  1. Remove eno...

Define Superposition Method  1. Remove enough redundant supports to reduce the structure to a statically determinate condition 2. Calculate the deflections at the previous l

Scheming thermal reinforcement, Question What is importance of critical...

Question What is importance of critical steel ratio in scheming thermal reinforcement ? Answer Execution of critical steel ratio resources that in construction joints,

Environmental engineering, A nearly horizontal, 12 ft wide rectangular chan...

A nearly horizontal, 12 ft wide rectangular channel carries 60 cfs at a depth of 3.0 ft. The width of the channel is smoothly contracted to 6 ft at the downstream section. (a) Dete

Geotechnical Design, I need this to be done perfectly . It is a civil engin...

I need this to be done perfectly . It is a civil engineering assignment. Please let me know if you can solve this perfectly within no more than 40 hours. Thanks.

Determine the grain exact gravity, (i) A dry soil has a void ratio of 0.65 ...

(i) A dry soil has a void ratio of 0.65 and its grain exact gravity is = 2.80. What is its unit weight? (ii) Water is added to the sample so that its degree of saturation is 60%

Working from whole to part, explain the principle of working from whole to ...

explain the principle of working from whole to part, as used in surveying

Define ways of providing the anti slip device - by stops, Define Ways of pr...

Define Ways of providing the anti slip device - By stops? In this method stopper plates or angles are welded to the underside of the girder and embedded in the bed block. It sh

The material that have lowest resistivity is , The material that have lowes...

The material that have lowest resistivity is Answer: Silver is the material

Aggragates, what are the classification og aggregates?

what are the classification og aggregates?

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