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

State the term directly below the edge of the footing, The load from a cont...

The load from a continuous footing of 1.8 metres width, which may be considered to be a strip load of considerable length, is 180 kN/m 2 . Verify the maximum principal stress at 1.

Types of loads and resulting stresses, • Applied loads result in internal f...

• Applied loads result in internal forces consisting of a shear force (from the shear stress distribution) and a bending moment (from the normal stress distribution) • Bending s

Acetylene gas cylinder for gas welding, Q. Acetylene gas cylinder for gas w...

Q. Acetylene gas cylinder for gas welding to be erected in upright position Acetylene gas is normally used for gas welding due to its simplicity in production and transportati

Steps to determine hydraulic horsepower for pump problems, Steps to determi...

Steps to determine the hydraulic horsepower (whp) for pump problems:  1) Determine (h A ) by rearranging the Bernoulli equation.    2) Apply (h A ) into the equation found i

Functions components of a typical expansion joint, Question What are the fu...

Question What are the functions components of a typical expansion joint ? Answer In a characteristic expansion joint, it normally contains following mechanism-joint sealant, jo

Behaviour of elastomeric bearings, Q. Behaviour of elastomeric bearings ? ...

Q. Behaviour of elastomeric bearings ? In order to carry out successful design and installation of elastomeric bearings, it is necessary to understand the behaviour of elastome

Marine piles circular in cross section, Question Give reason that why a...

Question Give reason that why are most marine piles circular in cross section? Answer As marine piles, there are a number of options existing for selection, name as H-

Chemistry, Construction and working of calomel electrode

Construction and working of calomel electrode

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