Problem 1: An earthen dam at a fish hatchery exhibits excessive seepage along th

Question

Problem 1: An earthen dam at a fish hatchery exhibits excessive seepage along the downstream face and at the edge of the embankment. To reliably evaluate the seepage condition of the embankment, what are the field observations and soil sampling characteristics that must be obtained? 5 points) I. II. The embankment thickness, strata positions, and cohesion III The gradation permeability, and in-situ unit weight 1V· Theblow counts from the standard penetration test, shear strength, and angle of internal The compression index and coefficient of vertical consolidation · friction (A)I and III only (B) I and IV only (C) II and III only (D) II and IV only

Explanation / Answer

It's option C. II and III only.

Seepage very much depends on permeability. Q= KIA. Where K = Permeability.

And also depends on cohesion. More cohesion means particles will not erode.

Also depends on embankment thickness and strata position.

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