What is raft foundation, Civil Engineering

Assignment Help:

Q. What is Raft Foundation?

A raft or mat is combined footing that covers the entire area beneath a structure and supports all the walls and coloumn when the allowable soil pressure is low or the building loads are heavy the use of spread footing would cover more than one half of the area and it may prove more economical to use mat or raft foundation. They are also used where the soil mass contains compressible lenses or the soil is sufficiently erratic so that the differential settlement would be difficult. Raft foundation is also used to reduce settlement above highly compressible soil by making the weight of structure and raft approximately equal to the weight of the soil excavated. Ordinary rafts are designed as reinforced concrete flat slab.


Related Discussions:- What is raft foundation

Distomat, applications of distomat in briefly

applications of distomat in briefly

Introduction to transportation engineering, Introduction to Transportation ...

Introduction to Transportation Engineering: Transportation is the movement of goods and people from one place to another. Transportation Engineering is that branch of engineer

Plagiarism, what is the importance of plagiarism in civil Engeneering

what is the importance of plagiarism in civil Engeneering

WATER RESOURCES SYSTEM PLANNING AND MANAGEMENT, Two crops are grown on land...

Two crops are grown on land of 20ha.The cost of raising crop 1 is 3unit/ha, while for crop 2 it is 1 unit/ha.The benefit from crop 1 is 5unit/ha and from crop 2, it is 2 unit/ha. A

Designing level of landings in piers, Question What is designing leve...

Question What is designing level of landings in piers? Answer Landings are designed as resting place for passengers throughout berthing and deserting of vessels. I

Moment of Inertia of a T Beam, Calculate the moment of inertia and section ...

Calculate the moment of inertia and section modulus (top and bottom of the beam) about the z-axis of the beam cross section of Fig.

Concrete technology, Sir, What is the dosage limit of densifier for SF...

Sir, What is the dosage limit of densifier for SFRC concrete

Fillet welding, Strength of member when fillet welded

Strength of member when fillet welded

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