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For the test data of Problem 8-12, construct the field virgin compres-sion curve using the Schmertmann procedure for an OCR of unity.
Problem 8-12
The following consolidation test data were obtained from undisturbed San Francisco Bay Mud. For this clay, LL = 88, PL - 43, p, = 2.70 Mg/m3, and w,, = 105.7%. Initially, the specimen height was 2.54 cm and its volume was 75.14 cm;. Plot the data as percent consolidation versus log pressure. Evaluate the preconsolidation pressure and the modified virgin compression index.
Determine the depth of a French drain (saturated depth) if the width is 3.0 feet, the effective permeability of the aggregate is 2000 ft/day, and the rate of discharge for 100 feet of trench is 1000 feet^3/day. The trench slope along the flow line is..
To avoid the salinization of soil in a farming area, parallel drainage canals are to be installed to maintain the water table at a depth of at least 4m below the ground surface. It is thought that no evapo-transpiration would occur below that depth.
Consider a wide flange steel beam of size W10x60 subjected to a negative bending moment of 24 kip ft. Calculate the maximum compressive and maximum tensile stresses and indicate where the stress will be tensile and where compressive.
Design a helical compression spring using music wire that will exert a force of 14.0 Ib when its length is 0.68 in. The tree length is to be 1.75 in. Use average service.
A rectangular sedimentation basin will have a flow of 1.0 mgd using a 2:1 legth/width ratio, and overflow rate of 0.00077 fps, and a detention time of 3.0 hr. What will the dimensions of the basin be?
The grade elevation at station 25+00 is to be 946.52 ft. What will be the grade elevation at station 34+86.20 if the grade linerises at the rate of 1.785% between these two points?
Name the two basic projections used in state plane coordinate systems. What are their fundamental differences? Which one is preferred for states whose long dimensions are north-south? East-west?
A 5.0-kg block is attached to a spring whose force constant is 125 N/m. The block is pulled from its equilibrium position at x = 0 m to a position at x = + 0.687 m and is released from rest.
A nozzle is shaped so that the velocity of flow varies linearly from base to tip. Assuming quasi-one-dimensional flow, what is the convective acceleration midway if v-base= 1 ft/sec, v-tip = 4 ft/sec, and L=18"
The owners wish to achieve an initial acceleration from rest of 22 ft/(sec^2) on a level paved surface. What is the minimum coefficient of road adhesion needed to achieve this acceleration
The number of telephone call coming in the business switchboard average 4 minutes/call. Let x be the number of calls received, Poisson variable.
A sealing application involves the following conditions: exposure to high temperature and weather; impermeability; and high strength and abrasion resistance.
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