15:33 O az23...CНАРТER 7.pdfKnowing that k = 6 × 10-3 cm/sec for the permeable layer, calculate the rateseepage through this layer in m³/hr/m width. Given: H = 5.4 m anda = 7°.ofGroundwater table (frsurface)HDirectionof seepageO Impervious layer D Ground surfaceFigure 7.297.2 Redo Problem 7.1 for a = 5° and a = 9°. All other site conditions remainingthe same, what impact does the slope angle have on the rate of seepage?7.3 Seepage is occurring through the sandy layer underneath the concrete dam asshown in Figure 7.30.Concrete damH1SeepageH2Sandy layerImpervious rockLFigure 7.30Given: upstream water level, H,thickness of the sandy layer, H,sandy layer, kDetermine:= 16 m; downstream water level, H, = 2.3 m;0.75 m; hydraulic conductivity of the0.009 cm/sec; void ratio of sand, e = 0.8; and L = 45 m.a. Rate of seepage per unit length of the dam (in m³/hr/m)b. Seepage velocityc. Quantity of seepage per day if the dam is 350 m longCopyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203Problems255! Redo Problem 7.3 with the following information: H, = 12 m; H, = 2 m; H, =0.5 m; k = 6.3 × 10-3 cm/sec; e = 1.22; L = 52 m; and dam length = 410 m.5 A pervious soil layer is sandwiched between two impervious layers as shownin Figure 7.31. Find the rate of flow in m³/sec/m (at right angles to the crosssection) through the pervious soil layer. Given: H =h = 2.5 m, S = 28 m, a = 12°, and k = 0.055 cm/sec.3.5 m, H, = 1.75 m,

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7.3 Seepage is occurring through the sandy layer underneath the concrete dam as shown in Figure 7.30. Concrete dam H1 Seepage |H, H2 Sandy layer Impervious rock L Figure 7.30 Given: upstream water level, H, = 16 m; downstream water level, H, = 2.3 m; thickness of the sandy layer, H, sandy layer, k = 0.009 cm/sec; void ratio of sand, e = %3D 0.75 m; hydraulic conductivity of the 0.8; and L = 45 m. Determine: a. Rate of seepage per unit length of the dam (in m³/hr/m) b. Seepage velocity c. Quantity of seepage per day if the dam is 350 m long

7.3 Seepage is occurring through the sandy layer underneath the concrete dam as shown in Figure 7.30. Concrete dam H1 Seepage |H, H2 Sandy layer Impervious rock L Figure 7.30 Given: upstream water level, H, = 16 m; downstream water level, H, = 2.3 m; thickness of the sandy layer, H, sandy layer, k = 0.009 cm/sec; void ratio of sand, e = %3D 0.75 m; hydraulic conductivity of the 0.8; and L = 45 m. Determine: a. Rate of seepage per unit length of the dam (in m³/hr/m) b. Seepage velocity c. Quantity of seepage per day if the dam is 350 m long

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter7: Permeability

Section: Chapter Questions

Problem 7.2P

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