New Microsoft Excel Worksheet

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CHECK FOR COMPRESSIVE STRESS AT JACK POCKETS

JACK POCKET

305 MM

760 MM HYDRAULIC JACKS (3 NOS.)

JACKING LOAD PER HYDRAULIC JACK NO. OF HYDRAULIC JACKS PER POCKET TOTAL LOAD AT EACH JACK POCKET

= = =

50 3 150

T Nos. T

SURFACE AREA OF JACK POCKET COMPRESSIVE STRESS AT EACH JACK POCKET

= =

231800 6.342

SQMM N/SQMM

GRADE OF CONCRETE FOR RCC BOX PERMISSIBLE COMPRESSIVE STRESS

= =

40 13.6

N/SQMM N/SQMM

SINCE COMPRESSIVE STRESS GENERATED AT JACK POCKET IS LESS THAN PERMISSIBLE COMPRESSIVE STRESS,THEREFORE THE CONCRETE CAN SAFELY WITHSTAND THE JACKING LOAD

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