Two flat jacks 12 in. square, are placed in the wall and roof of an approximately circular test gallery 8 ft in diameter. Flat jack 1 is horizontal, and placed in the side wall. Flat jack 2 is vertical, with its edge parallel to the axis of the gallery. The cancellation pressure measured were 2500 psi with FJ 1 and 900 psi with FJ 2. Estimate the initial stresses (vertical and horizontal). a) Vertical = 1037 psi; Horizontal 612 psi b) Vertical = 1050 psi; Horizontal 650 psi c) Vertical = 1062 psi; Horizontal

Two flat jacks 12 in. square, are placed in the wall and roof of an approximately circular test gallery 8 ft in diameter. Flat jack 1 is horizontal, and placed in the side wall. Flat jack 2 is vertical, with its edge parallel to the axis of the gallery. The cancellation pressure measured were 2500 psi with FJ 1 and 900 psi with FJ 2. Estimate the initial stresses (vertical and horizontal). a) Vertical = 1037 psi; Horizontal 612 psi b) Vertical = 1050 psi; Horizontal 650 psi c) Vertical = 1062 psi; Horizontal

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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