GGI Civil Engineering Forum

Path Laying Machine completes the job of path laying in a very short time. This is boon of science & technology for infrastructure development...

THIS IS THE DRAWING OF A SOLID SLAB RAFT FOUNDATION. THEY ARE CONSTRUCTED OF UNIFORM THICKNESS OVER THE WHOLE RAFT AREA.

THE EFFECT OF THE LOAD FROM COLUMN AND THE GROUND PRESSURE IS TO CREATE AREAS OF TENTION UNDER THE COLUMN AND THE AREAS OF TENTION IN THE UPPER PART OF THE RAFT BETWEEN THE COLUMN.

OFTEN THE NOMINAL MESH OF REINFORCEMENT IS PROVIDED IN THE FACES WHERE TENTION DOES NOT OCCUR TO CONTROL SHRINKAGE CRACKING OF THE CONCRETE.

RAFT Foundation: THE PRINCIPAL OF ANY RAFT FOUNDATION IS
TO SPREAD THE LOAD OF THE ENTIRE AREA OF THE SITE.
A RAFT FOUNDATION NORMALLY CONSISTS OF A
CONCRETE SLAB WHICH EXTENDS OVER THE
ENTIRE AREA. IT MAY BE STIFFENED BY RIBS OR
BEAMS INCORPORATED INTO THE FOUNDATION.
THEY ARE MADE UP OF CONCRETE AND HEAVILY REINFORCED WITH STEEL,SO ENTIRE FOUNDATION WILL ACT AS A UNIT
THE RAFT FOUNDATIONS HAVE THE ADVANTAGE OF REDUCING DIFFERENTIAL SETTLEMENTS AS THE CONCRETE SLAB RESISTS DIFFERENTIAL MOVEMENTS BETWEEN LOADING POSITIONS.