The Field Engineer: A Handy Book of Practice in the Survey, Location, and Track-work of Railroads ; Containing a Large Collection of Rules and Tables, Original and Selected, Applicable to Both the Standard and the Narrow Gauge, and Prepared with Special Reference to the Wants of the Young Engineer |
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Página 31
The first step is to set the level , as at A , commanding , let us suppose , the lower slope , and to ascertain its height above grade at the proposed section . This is usually done by reference to the nearest bench , and pegging from ...
The first step is to set the level , as at A , commanding , let us suppose , the lower slope , and to ascertain its height above grade at the proposed section . This is usually done by reference to the nearest bench , and pegging from ...
Página 34
The slope being 14 to 1 , or ļ , the horizontal reach of 23 feet corresponds to a vertical height of f of 23 15.3 feet ; and , since the instrument is 1 foot below grade , to a rod at the supposed embankment base of 153 - 1.0 = 14.3 ...
The slope being 14 to 1 , or ļ , the horizontal reach of 23 feet corresponds to a vertical height of f of 23 15.3 feet ; and , since the instrument is 1 foot below grade , to a rod at the supposed embankment base of 153 - 1.0 = 14.3 ...
Página 35
feet out and 10.0 6.5 3.5 feet below grade . Then set the lower slope stake as in Example No. 2 , observing that in this -14.0-13 . M 6 : 0-9 : 4 --- 22.5 23.520.4 470 - nd 8-0-2.6 3.8-4 6.5 14-10 + 18.3-12.8case the instrument is ahove ...
feet out and 10.0 6.5 3.5 feet below grade . Then set the lower slope stake as in Example No. 2 , observing that in this -14.0-13 . M 6 : 0-9 : 4 --- 22.5 23.520.4 470 - nd 8-0-2.6 3.8-4 6.5 14-10 + 18.3-12.8case the instrument is ahove ...
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Contenido
LOGARITHMS | 3 |
PLANE TRIGONOMETRY | 11 |
ADJUSTMENT AND USE OF INSTRUMENTS | 23 |
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The Field Engineer, a Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2017 |
The Field Engineer: A Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2018 |
Términos y frases comunes
4º curve added adjustment angle base called central angle centre chord circle cloth column connecting corresponding Cosine Cotang Cubes decimals deflection degree of curvature determine difference direct distance divided Draw elevation engineer equal equivalent error Example feet feet long field figure fixed follows frog gauge given gives grade ground half Hence Illustrated inches length logarithm mark means measure method middle minutes Move multiplied natural necessary Note observation opposite ordinate parallel practice quotient radii radius rail range Roots rule screws side Sine slope Square stake straight stretch Suppose switch-rail Table Table XVI Tang tangent telescope terminal tion track transit triangle turn vernier vertical whole
Información bibliográfica
| Título | The Field Engineer: A Handy Book of Practice in the Survey, Location, and Track-work of Railroads ; Containing a Large Collection of Rules and Tables, Original and Selected, Applicable to Both the Standard and the Narrow Gauge, and Prepared with Special Reference to the Wants of the Young Engineer |
| Autor | William Findlay Shunk |
| Edición | 2 |
| Editor | D. Van Nostrand, 1882 |
| Procedencia del original | Universidad de California |
| Digitalizado | 7 Dic. 2007 |
| Largo | 325 páginas |
| Exportar cita | BiBTeX EndNote RefMan |