Modeling Vegetation (and other) Effects using VOLFLO Software

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Excessive watering of a flowerbed could lower the suction below 3.0 pF. Depending on the amount of f watering t i the th suction ti could be as low as 2.5 pF. The excessive watering will decrease the suction for several feet. The depth of influence may vary but 3 to 4 feet is possible possible. Below the depth influenced by the excessive watering, g the suction profile will trend back to the equilibrium suction value. 66
Since the excessive watering of the flo flower e bed doesn’t occur until after the foundation is built, the flower bed profile would be used as the FINAL SUCTION PROFILE. 67
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June 10, 2009 - Houston, TX
Page 4 and 5:
Percent Volume Change Per Element S
Page 6 and 7:
Suction Compression Index corrected
Page 8 and 9:
A suction change from dry (higher s
Page 11:
Consolidation Theory Shrink / Swell
Page 14 and 15: PTI adopted adopted the principles
Page 17 and 18: PTI PTI’s s Differential Soil Mov
Page 19 and 20: y m is (and always has been) develo
Page 21 and 22: ym, in very simple l terms, is a fu
Page 23 and 24: Initial Suction Profile Measured Su
Page 27 and 28: Post-Equilibrium Suction Envelope -
Page 29 and 30: Shrink Case - Both envelopes start
Page 31 and 32: When to use Post-Equilibrium Envelo
Page 33 and 34: The magnitude of shrink and swell i
Page 35 and 36: 1.1 pF + 0.4 pF = 1.5 pF (Total Suc
Page 38 and 39: To model special non-climate contro
Page 40 and 41: Since the tree is removed JUST BEFO
Page 43 and 44: After the tree has been removed the
Page 45 and 46: The magnitude of swell is a functio
Page 47 and 48: 3 large trees reportedly removed wi
Page 49 and 50: Reduuction of Suction S Chaange 100
Page 51 and 52: Time = 0 Time = 1 Year 51
Page 53: Time between tree removal and found
Page 56 and 57: Due to climate influences alone aft
Page 58: Shrinking Swelling 58
Page 61 and 62: …. it would be the final suction
Page 63 and 64: Note: This is used primarily for an
Page 68 and 69: For post-equilibrium post equilibri
Page 71 and 72: A vertical moisture barrier will li
Page 73 and 74: Suction profile for climate control
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Modeling Vegetation (and other) Effects using VOLFLO Software

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