flood wall 1Project:Calculated by:Client:Checked by:Job
No.:Approved by:Date:Ref:flood wallInput DataForcesDensity of stone
masonry, kg/m31900B2 = 0.83 mWtResultant weight of blockDensity of
water, kg/m31000W1weight of blockFriction factor, 0.40H = 2.5
mW2weight of blockBearing capacity, kN/m250PPressure due to
waterStructure sizeCalculation of forces:Length, L,
m21.00W1kN384.90Height, H, m2.50W2kN815.46Output DataWt,W1 +
W2kN1200.35Bottom breadth, B1, m1.62PkN30.66Top breadth, B2,
m0.83Breadth to height ratio0.65B1 = 1.62 mMoment about rightmost
bottom point "0"ForceLever arm,m, for pipeRightning
MomentOverturning MomentVertical comp.Horizontal comp.H, mV, mKN
mKN
mKNKNF130.660.831183.1225.551200.3530.66Wt1200.350.99Eccentricity
of loadingCondition for block stabilityTotal MomentEccentricity,
eDescriptionsValuesResultsKN-mmFOS against sliding15.66Status
Valid!1157.580.154FOS against bearing2.36Status Valid!FOS against
overturning46.31Status Valid!ref: P.N. Khanna, Civil Hand Book,
pg;7/70
++Stone masonryW1W2WTPUsing above formula: Resultant pressure is
always within middle-third of the base
flood wall 2Project:Calculated by:Client:Checked by:Job
No.:Approved by:Date:11 March, 2006Ref:flood wallInput
DataForcesDensity of stone masonry, kg/m31900B2 = 0.83 mWtResultant
weight of blockDensity of water, kg/m31000W1weight of blockFriction
factor, 0.40H = 2.5 mW2weight of blockBearing capacity,
kN/m250PPressure due to waterStructure sizeCalculation of
forces:Length, L, m21.00W1kN751.85Height, H, m2.50W2kN815.46Output
DataWt,W1 + W2kN1567.31Bottom breadth, B1, m2.37PkN35.98Top
breadth, B2, m0.83Breadth to height ratio0.95B1 = 2.37 mMoment
about rightmost bottom point "0"ForceLever arm,m, for pipeRightning
MomentOverturning MomentVertical comp.Horizontal comp.H, mV, mKN
mKN
mKNKNF135.980.831351.4329.991567.3135.98Wt1567.310.86Eccentricity
of loadingCondition for block stabilityTotal MomentEccentricity,
eDescriptionsValuesResultsKN-mmFOS against sliding17.42Status
Valid!1321.440.342FOS against bearing1.77Status Valid!FOS against
overturning45.07Status Valid!ref: P.N. Khanna, Civil Hand Book,
pg;7/70
++Stone masonryW1W2WTPUsing above formula: Resultant pressure is
always within middle-third of the baseP = H^2 x water density/(2 x
sin)
