A Practical Treatise on Roads, Streets, and PavementsVan Nostrand, 1876 - 258 páginas |
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Página 14
... road bed , or substitute for it a short bridge over a narrow water - course , with easy approaches on either side ; a stream may cross and then re - cross the direct line , forming an elbow which may sometimes be turned without greatly ...
... road bed , or substitute for it a short bridge over a narrow water - course , with easy approaches on either side ; a stream may cross and then re - cross the direct line , forming an elbow which may sometimes be turned without greatly ...
Página 37
... bed . This shrinking for different earths , is approximately as follows : gravel or sand about 8 per cent ; clay about 10 per cent ; loam about 12 per cent ; loose vegetable surface soil about 15 per cent ; puddled clay about 25 per ...
... bed . This shrinking for different earths , is approximately as follows : gravel or sand about 8 per cent ; clay about 10 per cent ; loam about 12 per cent ; loose vegetable surface soil about 15 per cent ; puddled clay about 25 per ...
Página 50
... bed the road covering is placed . In others a bed formed of fascines has been used with success . Fascines are made by binding together , by wires or withes , in cylindrical bundles nine to ten inches in diameter and ten to twenty feet ...
... bed the road covering is placed . In others a bed formed of fascines has been used with success . Fascines are made by binding together , by wires or withes , in cylindrical bundles nine to ten inches in diameter and ten to twenty feet ...
Página 53
... road bed . When the embankment requires more earth than the excavation can supply , the deficiency is made up from side - cuttings , made in some convenient locality near by . On the other hand when the embankments do not con- sume all ...
... road bed . When the embankment requires more earth than the excavation can supply , the deficiency is made up from side - cuttings , made in some convenient locality near by . On the other hand when the embankments do not con- sume all ...
Página 55
... road bed dry . Their depth should be 20 to 24 inches below the road cover- ing . They should have an inclination on the bottom , from the axis of the road to the side drains , of not less than 1 in 100 nor greater than 1 in 30. When the ...
... road bed dry . Their depth should be 20 to 24 inches below the road cover- ing . They should have an inclination on the bottom , from the axis of the road to the side drains , of not less than 1 in 100 nor greater than 1 in 30. When the ...
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Términos y frases comunes
angle angle of repose asphalt asphalt pavement asphaltic cement asphaltum Basalt bituminous bottom bricks broken stone Broken stone road carriage catchwater drains centre cents clean Cloth coal tar cobble stones compacted constructed cost cross drains cubic yards depth drainage dust earth edge embankment Engineer Equivalent length excavated feet filled Force required grade gravel hard heavy horizontal horses Illustrated inches inches in thickness inches thick inclination iron joints kind laid length of level less level road lime load longitudinal Macadam Macadamized road maintenance mastic material method miles MILES PER HOUR mixture mortar necessary ordinary paved pavement placed Portland cement pounds practical Railroad rails railways rammer ramming repairs road bed road covering road surface road-covering roadway rock roller Rosendale rubble ruts Seyssel side ditches side gutters slope soil square stringers suitable tion tons top layer traffic transverse Val de Travers vehicles wagon wear wheels width wood
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Página 97 - All the irregularities of the upper part of the said pavement; are to be broken off by the hammer, and all the interslices to be filled with stone chips firmly wedged or packed by hand with a light hammer, so that when the whole pavement is finished there shall be a convexity of 4 inches in the breadth of 15 feet from the center.
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