EXCAVATION & TIMBERING
BEFORE A FOUNDATION CAN BE LAID , IT IS NECESSARY TO EXCAVATE A TRENCH OR PIT OF THE REQUIRED DEPTH AND WIDTH .
IF THE TRENCHES OR PITS ARE OF SIGNIFICANT DEPTH , IT MAY BE NECESSARY TO FIX TEMPORARY TMBER SUPPORT TO STOP THE SIDES OF EXCAVATION FROM FALLING IN .
TYPES OF EXCAVATION
EXCAVATION IS CARRIED OUT TO REMOVE EARTH TO FORM A CAVITY IN THE GROUND.
EXCAVATIONS MAY BE CLASSIFIED AS SHALLOW , MEDIUM OR DEEP AS FOLLOWS;-
-SHALLOW-UP TO 1.500M DEEP ;
-MEDIUM-1.500-3.00M DEEP;
-DEEP -OVER 3.00M DEEP
TYPES OF EXCAVATION;
-OVERSITE EXCAVATION
-REDUCE LEVEL EXCAVATION
-TRENCH EXCAVATION
-PIT EXCAVATION
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