Elements of surveying and levelling; with descriptions of the instruments and the necessary tables (1870)
Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes & Company · leaf 256
m, the crosssection is partly in excavation and partly in embankment. Theratio of slope is 2 to 1. The centre cut is 2.4. The centrereading is 7.9; height of instrument, 10.3. The reading at H, is 6.3; at E, 6.1; at 8, 5.4. The point,K, is efjsily found in practice, it being that point on the… … Dist. Left. CentreCut. Right. 4.9 4.2 4.09.8 A 3.8 2.4 0 - 2.9 - 5.5.4 A 11. 63. In the following example, there is a regular rise in thesurface-line of one foot in eight. The ratio of slope in theexcavation is to be IJ to 1; height of instrument, 14.2. In seeking for the position of the…
Surveying
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