Railroad Engineers' Field-book and Explorers' Guide: Especially Adapted to the Use of Railroad Engineers on Location and Construction, and to the Needs of the Explorer in Making Exploratory Surveys...

J. Wiley & Sons, 1894 - 358 Seiten

RAILROAD LOCATION	1

SEC PAGE	4

Pushergrades	26

Average Cost of Track	32

Dumpy Level	45

Correction for Curvature and Refraction	46

Hand Level	47

Running the Line to Grade	49

Fundamental Formulæ	75

PROBLEMS IN SIMPLE CURVES 76 To lay out a curve by deflection angles	78

To locate a curve when the apex is inaccessible	81

To locate a curve by offsets from a tangent	82

Ditto if the apex P C etc are inaccessible	83

To locate a curve by offsets from the chords produced	85

To locate a curve by ordinates from a long chord	87

V	88

COMPOUND CURVES	94

TRANSITION CURVES	100

Vertical Curves	107

Setting out Bridge Foundations	116

Running Trackcentres and setting Ballaststakes	125

Curving Rails	132

Introduction	140

131	146

Ironwork	153

Fractions of an Inch in Decimals of a Foot	170

Division of the Subject	176

Observing Altitudes and Depressions	182

87	197

Longitude Local Time by an Altitude of a Star	206

Table	252

66

Assumption of Mean Resistance and Mean Propelling Force	18

over Parts I and II since Reconnoissance is usually the first	ii

Tangents and Cotangents	xiii

Titel	Railroad Engineers' Field-book and Explorers' Guide: Especially Adapted to the Use of Railroad Engineers on Location and Construction, and to the Needs of the Explorer in Making Exploratory Surveys... Railroad Engineers' Field-book and Explorers' Guide: Especially Adapted to the Use of Railroad Engineers on Location and Construction, and to the Needs of the Explorer in Making Exploratory Surveys, Henry Colthurst Godwin
Autor/in	Henry Colthurst Godwin
Verlag	J. Wiley & Sons, 1894
Original von	University of Michigan
Digitalisiert	3. Juli 2008
Länge	358 Seiten

Zitat exportieren	BiBTeX EndNote RefMan

Table of Grades and Grade Angles	50

Transit Work	51

Latitudes and Departures	52

Azimuth Observations	54

A Maximum Elongation of Polaris	55

B Observation of y Cassiopeia and Polaris	56

Observation of Alioth and Polaris	57

Convergence of Meridians	59

Simple Triangulations	60

Levelling	61

Precision of a Line of Levels	62

2	63

Locating by means of Contour Lines	64

Levels and Curvature	66

Value of Topography	67

Tangents and Curves	68

Balance of Cuts and Fills	69

Estimating by Centre Heights	71

4	72

Length of Curves	74