The Field Engineer: A Handy Book of Practice in the Survey, Location, and Trackwork of Railroads; Containing ... Rules and Tables ... Applicable to ... the Standard and the Narrow Gauge ...D. van Nostrand, 1880 - 318 páginas |
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Página 27
... foregoing example would appear in the field - book as follows : - STA . B. S. INST . F. S. ELEVA . REMARKS . BM 200.00 2.22 202.22 1012 : 3 BM on W. Oak . 40 ft . N. of Sta . O. 8.4 193.8 1.9 200.3 0.81 201.41 2.64 204.05 3.7 200.3 3.2 ...
... foregoing example would appear in the field - book as follows : - STA . B. S. INST . F. S. ELEVA . REMARKS . BM 200.00 2.22 202.22 1012 : 3 BM on W. Oak . 40 ft . N. of Sta . O. 8.4 193.8 1.9 200.3 0.81 201.41 2.64 204.05 3.7 200.3 3.2 ...
Página 29
... foregoing rule . say " add , " 12. The naked formula , however , will usually be sufficient for the engineer . He can prescribe gradients by it for surveys , which shall develop the ground to be occupied , and can decide between summits ...
... foregoing rule . say " add , " 12. The naked formula , however , will usually be sufficient for the engineer . He can prescribe gradients by it for surveys , which shall develop the ground to be occupied , and can decide between summits ...
Página 33
... foregoing section would be noted in the field book as follows : STA . DIS . LEFT . CENTRE RIGHT . AREA . C. YDS +5.8 + 16.0 + 18.0 258 50 +12.0 15.8 11.0 28.0 Example No. 2 . 13. In the annexed figure , representing an embankment 14 ...
... foregoing section would be noted in the field book as follows : STA . DIS . LEFT . CENTRE RIGHT . AREA . C. YDS +5.8 + 16.0 + 18.0 258 50 +12.0 15.8 11.0 28.0 Example No. 2 . 13. In the annexed figure , representing an embankment 14 ...
Página 53
... foregoing example , the tabular tangent cor- responding to 35 ° 24 ′ is 1,828.7 . Dividing by 609.6 , we have 3 for the degree of curvature ; and 5,730 divided by 3 gives S. GIVEN THE INTERSECTION ANGLE I AND CHORD AB = R = 1,910 feet ...
... foregoing example , the tabular tangent cor- responding to 35 ° 24 ′ is 1,828.7 . Dividing by 609.6 , we have 3 for the degree of curvature ; and 5,730 divided by 3 gives S. GIVEN THE INTERSECTION ANGLE I AND CHORD AB = R = 1,910 feet ...
Página 54
... foregoing example , the tabular chord corre- sponding to angle 35 ° 24 ' would be 3,484.2 , which , divided by the given chord , 1,161.4 , gives 3 for the degree of curvature , and 5,730 divided by 3 makes the radius R = 1,910 feet . 10 ...
... foregoing example , the tabular chord corre- sponding to angle 35 ° 24 ' would be 3,484.2 , which , divided by the given chord , 1,161.4 , gives 3 for the degree of curvature , and 5,730 divided by 3 makes the radius R = 1,910 feet . 10 ...
Otras ediciones - Ver todas
The Field Engineer: A Handy Book of Practice in the Survey, Location and ... William F. Shunk Sin vista previa disponible - 2008 |
The Field Engineer: A Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2017 |
Términos y frases comunes
100 feet long 100-feet chords adjustment apex distance called central angle column Cosine 1 Sine Cotang cross-hair Cube Roots decimals deflection distance degree of curvature DEGREE OF CURVE Diff divided elevation engineer equal Example feet figure fixed foregoing frog angle Full Gauge gauge of track gauge side gent ground index angle instrument intersection angle length of switch-rail located logarithm M.
M. I Sine Main frog dist mantissa mark measure method middle frog middle ordinate middle point minutes Multiply observation outer rail parallel perpendicular quotient radii radius range Reciprocals REVERSED CURVE right triangle screws slope Square Roots standard gauge straight line sub-chord subtended Subtract Suppose Table XVI tabular tance Tang tangent A B tangential angle tangential distance telescope terminal tangent tion toe of switch Trigonometry turnout curve vernier versin vertical ΙΟ ΤΑΝ
Pasajes populares
Página 18 - ... the square of the hypothenuse is equal to the sum of the squares of the other two sides.
Página 4 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 11 - ... is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are designated respectively, by the characters ° ' ". For example, ten degrees, eighteen minutes, and fourteen seconds, would be written 10° 18
Página 4 - The logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers. log» MN = log» M + log