 | Junius Brutus Wheeler - 1876 - 502 páginas
...will save much labor and expense in keeping the roadway in good order. The simplest means which cau be used for this purpose, consist in covering the slopes with good sods, or else with a layer of mould about four inches thick, and sown with grass-seed. These means will be... | |
 | Dennis Hart Mahan - 1877 - 642 páginas
...well exposed to the action of the sun and air, which will cause a rapid evaporation of the moisture OH the surface. Pure sand and gravel may require a greater...consist in covering the slopes with good sods (Fig. ^li)), or FiR. 219. Cross-section of a road la excavation. A, rood-surface. B, side HloixjK. C, top... | |
 | Henry Law - 1877 - 416 páginas
...slopes from the action of the weather ; but it is a precaution which, in the end, will save much labour and expense in keeping the roadway in good order....purpose, consist in covering the slopes with good sods, or else with a layer of vegetable mould about 4 inches thick, carefully laid and sown with grass seed.... | |
 | Henry Law - 1877 - 416 páginas
...slopes from the action of the weather ; but it is a precaution which, in the end, will save much labour and expense in keeping the roadway in good order....purpose, consist in covering the slopes with good sods, or else with a layer of vegetable mould about 4 inches thick, carefully laid and sown with grass seed.... | |
 | Henry Law - 1887 - 424 páginas
...slopes from the action of the weather ; but it is a precaution which, in the end, will save much labour and expense in keeping the roadway in good order....purpose, consist in covering the slopes with good sods, or else with a layer of vegetable mould about 4 inches ; .:--k, carefully laid and sown with grass... | |
 | Dennis Hart Mahan - 1890 - 670 páginas
...subsequently misplaced. 715. In forming the excavations, the inclination of the side slopes detnand? peculiar attention. This inclination will depend on...consist in covering the slopes with good sods. (Fig. 219), or 714. Earth- Work. This term is applied to whatever relates to the construction of the excavations... | |
 | Henry Law, Daniel Kinnear Clark - 1890 - 424 páginas
...slopes from the action of the weather ; but it is a precaution which, in the end, will save much labour and expense in keeping the roadway in good order....purpose, consist in covering the slopes with good sods, or else with a layer of vegetable mould about 4 inches thick, carefully laid and sown with grass seed.... | |
 | Henry Law, Daniel Kinnear Clark - 1901 - 564 páginas
...slopes from the action of the weather ; but it is a precaution which, in the end, will save much labour and expense in keeping the roadway in good order....purpose, consist in covering the slopes with good sods, or else with a layer of vegetable mould about 4 inches thick, carefully laid and sown with grass seed.... | |
 | Dennis Hart Mahan - 1902 - 682 páginas
...surface of the roadway will, by this arrangement, be well exposed to the action of the sun and air, wnich will cause a rapid evaporation of the moisture on...consist in covering the slopes with good sods (Fig. 219), or Fig. 219. Cross-section of a road ta excavation. A, road-Hurfaoa, B, side sloped. C, top surface-drain.... | |
 | Austin Thomas Byrne - 1906 - 96 páginas
...end will save much labor Fig. 22. Cross-Section for Excavation. and expense in keeping the roadways in good order. The simplest means which can be used for this purpose consists in covering the slopes with good sods, or else with a layer of vegetable mould about four... | |
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Pure sand and gravel may require a greater slope, according to circumstances. In all cases where the depth of the excavation is great. the base of the slope should be increased. It is not usual to use any artificial means to protect the surface of the... 
