The Elements of Civil Engineering: Prepared for Students of the International Correspondence Schools, Scranton, Pa. ..., Volume 3Colliery engineer Company, 1899 - Civil engineering |
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Common terms and phrases
abutments ballast batter beam bearing bolts borrow pits braces bridge caisson caps center line central angle cents per cubic chains chord cofferdam contour contour lines corner cost course cross-section cubic yard culvert degree depth diameter dimensions direction distance drills driven elevation embankment engineer equal excavation factor of safety fastened foot foundation frog gauge given grade guard-rails head height hole horizontal inches intersection joints laid latitude and departure magnetic bearing main track marked masonry material measured meridian mile mortise and tenon notched parallel piles placed plat plumb-bob posts radius railroad right angles road scale screws shown in Fig side sills slope space spikes square stakes station stone stringers surface survey switch switch rods thickness timber tion township trestle triangle tunnel turnout curve vernier vertical wall width yellow pine
Popular passages
Page 697 - Both banks of navigable rivers are to be meandered by taking the courses and distances of their sinuosities, and the same are to be entered in the field book.
Page 601 - If two triangles have two sides, and the included angle of the one equal to two sides and the included angle of the other, each to each, the two triangles are equal in all respects.
Page 689 - The sections and half sections bounded on the northern and western lines of such townships shall be sold as containing only the quantity expressed in the returns and plats, respectively, and all others as containing the complete legal quantity...
Page 603 - Now, since the areas of similar polygons are to each other as the squares of their homologous sides...
Page 697 - ... lines, and to lay out the same into tracts as far as practicable, of fifty-eight poles in front and four hundred and sixty-five poles in depth, of such shape, and bounded by such lines as the nature of the country will render practicable, and most convenient: Provided however.
Page 699 - After a true coursing and most exact measurements, the corner boundary is the consummation of the work for which all the previous pains and expenditure have been incurred. A boundary corner in a timbered country is to be a tree, if one be found at the precise spot; and if not, a. post is to be planted thereat, and the position of the corner post is to be indicated by trees adjacent (called...
Page 699 - A sufficient number of other trees standing nearest to your line, on either side of it, are to be blazed on two sides, diagonally or quartering towards the line, in order to render the line conspicuous, and readily to be traced, the blazes to be opposite each other, coinciding in direction with the line where the trees stand very near it, and to approach nearer each other, the further the line passes from the blazed trees. Due care must ever be taken to have the lines so well marked as to be readily...
Page 604 - The angle formed by a tangent and a chord meeting at the point of contact is measured by half the intercepted arc.
Page 603 - L and the proportion [2] is the same as - A o, S' 4R'2 therefore, the circumferences of circles are to each other as their diameters, and their areas are to each other as the squares of their diameters.
Page 702 - At all township corners, and at all section corners, on range or township lines, four bearing trees are to be marked in this manner, one in each of the adjoining sections. At interior section corners four trees, one to stand within each of the four sections to which such corner is common, are to be marked in manner aforesaid, if such be found.