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

Earth work in high embankments, Q. Earth work in high embankments? (a) ...

Q. Earth work in high embankments? (a) Borrow pits must not be dug close to telegraph poles, electric poles, level crossings, bridges a culverts, or within 800 meters of the bo

Calculate the concrete tensile strength, Calculate the concrete tensile str...

Calculate the concrete tensile strength A 6 in. by 12 in. concrete cylinder resisted a transverse force of 55,000-lbf, at 28 days, in a split tensile cylinder test. Calculate t

Theodolite, definion of local attraction and correction

definion of local attraction and correction

Disparities between regular precast and pipe jacking, Question What are...

Question What are main disparities in design between regular precast concrete pipes and pipes used for pipe jacking ? Answer For pipes used for pipe jacking, they h

Low cost roads connecting villages, Low Cost Roads Connecting Villages: ...

Low Cost Roads Connecting Villages: Problem of Village Connectivity It is estimated that nearly 45 per cent of India's villages are not connected by an all-weather ro

Mechanics problem, i am facing some problem in solving the problem of elong...

i am facing some problem in solving the problem of elongation due to self weight suspended from fixed support in the conical bar

Harbour layout, Harbour Layout: A harbour has the following constitue...

Harbour Layout: A harbour has the following constituent parts: (a)        An entrance channel, 100-300 m wide (b)       A turning basin, dia 400-600 m (c)        A b

Explain about warren truss, Q. Explain about Warren Truss? A truss is a...

Q. Explain about Warren Truss? A truss is a simple structure whose members are subject to axial compression and tension only and however not bending moment. The most common tru

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