3. From d figure below, if the atmos. pressure is 770mm of Hg, fınd: a) Rm if the pressure at B is 797mm of Hg abs. b) If Rm=58mm, find the pres. at B in meters of water abs. Hg A Air Oil Sp. Gr. = 0.8 R. Water 750 mm 80 mmy +B 200 mm ....

3. From d figure below, if the atmos. pressure is 770mm of Hg, fınd: a) Rm if the pressure at B is 797mm of Hg abs. b) If Rm=58mm, find the pres. at B in meters of water abs. Hg A Air Oil Sp. Gr. = 0.8 R. Water 750 mm 80 mmy +B 200 mm ....

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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Concept explainers

Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.

Question

3. From d figure below, if the
atmos. pressure is 770mm of Hg,
fınd:
a) Rm if the pressure at B is
797mm of Hg abs.
b) If Rm=58mm, find the pres. at
B in meters of water abs.
Hg
A
Air
Oil
Sp. Gr. = 0.8
R.
Water
750 mm
80 mmy
+B
200 mm
....

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