A 10-m-thick layer of stiff saturated clay is underlain by a layer of sand. The sand is under artesian pressure. A 5.75-m-deep cut is made in the clay. What would be the maximum permissible depth of cut before heaving would occur. Determine the factor of safety against heaving at point A. Ans.: H =6.88m, FOS = 1.36 Pa= 1925 kg/m 5.75 m 10 m Saturated clay 6m

A 10-m-thick layer of stiff saturated clay is underlain by a layer of sand. The sand is under artesian pressure. A 5.75-m-deep cut is made in the clay. What would be the maximum permissible depth of cut before heaving would occur. Determine the factor of safety against heaving at point A. Ans.: H =6.88m, FOS = 1.36 Pa= 1925 kg/m 5.75 m 10 m Saturated clay 6m

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Which one of these curves represents drawdown in a confined aquifer with a leaky aquitard? How can you tell?
Given: b = 350 mm d = 420 mm f'c = 30 MPa fy = 275 MPa Mu = 200 kN-m diameter of Rebar = 20 mm Required: 1 Depth of stress block, mm 2 Depth of the neutral axis, mm 3 Number of 20mm rebars
Water flows through the 2-in-diameter pipe at 0.2 ??^3/s as shown in Fig. 5-19a. If the pressure at A is 30 psi, determine the pressure at C, and draw the energy and hydraulic grade lines from A to B. Neglect friction losses and take ?? = 62.4 ??/ft^3
What is the minimum diameter at section (1) in the pipe below to avoid cavitation at that location? Take D2 = 15 cm. Neglect friction head loss in the pipe.
Two circular conduits (n=0.025) each 1.5m in diameter, serve to carry the water of a creek through a railroad embankment. When carrying flood discharges both ends of the conduits are submerged. Assuming the same slope of the pressure , what width would be necessary in two equal rectangular sections (n=0.015) and each depth is 1.2m, if they are replace the circular conduits and perform the same service?
(a) Determine the magnitude, direction, and line of action of the horizontal and vertical components ofthe hydrostatic force acting on curved surface AB shown in figure, which has a radius of 2 m and awidth of 4 m.(b) Assume that the water exists on the opposite side of the vertical barrier (the surface AB remains asshown with point A 8 m below the surface level). Determine the information requested in part (a)
A 300mm by 460mm rectangular pipe carries oil at 105 kpa absolute and 20c through 460m with an average velocity of 2.97 m/s. determine the loss and the pressure drop, assuming the pipe is horizontal and the size of the surface imperfections is 0.00055m.
What are the Conditions for passive pressure case? Describe.
The bed of a corrugated channel, with Manning’s coeffcient n =0.019 s/m^1/3 drops 25 m every 1500 m. The channel has a semi-circular cross section with total width of W = 10 m (i.e. radius of the semi-circle is 5 m). 1. Given that the stream has a water depth of h = 2.5 m, find the flow rate in the stream 2. A concrete divider with the same Manning’s coeffcient was installed at the middle of the stream. Given that the total flow rate in the stream stays the same, would the water depth in the stream change as a result of the divider? If so, would it increase or decrease? Would the stream velocity change? If so, would it increase or decrease? You may assume the thickness of the divider to be negligible.
A soil along a horizontal plane at a depth of 4 m in a deposit of sand having the following properties: Angle of internal friction, ∅ = 35° ; Dry unit weight, yd = 17 kN/m3 ; Specific gravity, Gs =2.7. Assume the ground water table is at a depth of 2.5 m from the ground surface. Find the change in shear strength in kPa when the water table rises to the ground surface. a. 11 b. 95 c. 23 d. 41
Determine the factor of safety of the slope against shear failure if water percolates in a direction parallel to surface of slope.
A vertical, trapezoidal gate in the face of a dike is subjected to sea water pressure (s =1.3) on one side. The upper edge is in the water surface and is 1.567 meters long. Twoedges are vertical and measured 2.67 meters and 3.76 meters each. Determine the totalpressure on the gate and the location of the center of pressure.