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If the resultant forces are resolved in the three co-ordinate directions and divided by the area of the face of the cube we have the general state of 3-dimensional stress as shown.
Stresses acting normal to the facesare denoted by σ and those acting parallel to the faces are shear stresses denoted by τ.
The second subscript refers to the direction in which the stress acts (e.g. τyx acts on the y face in the x direction). The normal stresses areusually abbreviated to σx, σy and σz.
Lubrication of rail joints is one of the important items of permanent way works incidental to systematic track maintenance, the lubrication of joints is done for the following purp
If y1 and y2 are alternate depths of a rectangular channel show that Yc³ =2y1²y2²/(y1+y2) Also specific energy E = y1²+y1y2+y2²/(y1+y2)
A five-mile long section of two-lane road has an AADT of 8,000. There have been six crashes on this section of road during the past two years. What is the crash rate? R sec
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Q. Explain Gap Survey and adjustment of Gap? Gap survey and rectification of gaps is to be carried out, in stretches where track develops excessive creep jammed joints, sun kin
Location and spacing of borings The location, spacing of geophysical profiles, soundings and borings should be such that, you will be in a position to accurately predict the
what is the total volume required for the gravel material of 6.5mx2314mx0.1m with a relative density of 2.919 and a loose bulk density of 1668kg/m3
define of couple
A capital improvement project requires the installation of a property line fence along the 250-ft Northern boundary line.The decorative aluminum fence is constructed of posts space
what is the manufacturing process of regular portland cement
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