 On rock slopes when the inclination of the natural surface is not greater than one perpendicular to two base, the road may be constructed partly in excavation and partly in embankment in the usual manner, or by cutting the face of the slope into horizontal...  A Practical Treatise on Roads, Streets, and Pavements - Page 48by Quincy Adams Gillmore - 1876 - 258 pagesFull view - About this book
 | Quincy Adams Gillmore - 1876 - 292 pages
...and a half perpendicular, the whole roadway may be formed in excavation, or, as shown in Fig. 16, by cutting the face of the ledge into two or more horizontal...advantageously replaced by two smaller steps, a, c, and &, li. On account of the great comparative cost of excavations in rock, estimates for work of this... | |
 | Quincy Adams Gillmore - 1892 - 312 pages
...and a half perpendicular, the whole roadway may be formed in excavation, or, as shown in Fig. 16, by cutting the face of the ledge into two or more horizontal...form of a solid stone wall, in horizontal courses, cither with or without mortar. In the figure the lower step, on which the wall rests, may sometimes... | |
 | Austin Thomas Byrne - 1892 - 736 pages
...cutting the face of the slope into horizontal FIG. 63. SHOWING METHOD OF CONSTRUCTION ON HILLSIDES. steps with vertical faces, and building up the embankment...of a solid stone wall in horizontal courses, either dry or laid in mortar. Care is required in proportioning the steps, as all attempts to lessen the quantity... | |
 | Austin Thomas Byrne - 1906 - 96 pages
...in excavation and partly in embankment in the usual manner, or by cutting the face of the slope into horizontal steps with vertical faces, and building...form of a solid stone wall in horizontal courses, laid either dry or in mortar. Care is required in proportioning the steps, as all attempts to lessen... | |
 | Austin Thomas Byrne, Alfred Edward Phillips - 1907 - 152 pages
...in excavation and partly in embankment in the usual manner, or by cutting the face of the slope into horizontal steps with vertical faces, and building...form of a solid stone wall in horizontal courses, laid either dry or in mortar. Care is required in proportioning the steps, as all attempts to lessen... | |
 | American School of Correspondence, Chicago, American School (Lansing, Ill.) - 1909 - 488 pages
...excavation anil partly in embankment in the usual manner, or by cutting the face of the slope into horizontal steps with vertical faces, and building...form of a solid stone wall in horizontal courses, laid either dry or in mortar. Care is required in proportion-ing the steps, as all attempts to lessen... | |
 | American School of Correspondence, Chicago, American School (Lansing, Ill.) - 1909 - 488 pages
...manner, or by cutting the face of the slope into horizontal steps with vertical faces, and building np the embankment in the form of a solid stone wall in horizontal courses, laid either dry or in mortar. Care is required in proportioning the steps, as all attempts to lessen... | |
 | 1920 - 472 pages
...in excavation and partly in embankment in the usual manner, or by cutting the face of the slope into horizontal steps with vertical faces, and building...form of a solid stone wall in horizontal courses, laid either dry or in mortar. Care is required in proportioning the steps, as all attempts to lessen... | |
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