A RATIONAL METHOD OF ESTABLISHING CRITERIA FOR THE GRADING OF A ROAD IN MOUNTAINOUS TOPOGRAPHY WITH HEAVY CROSS-FALLS NECESSITATING RETAINING WALLS TO CONTAIN FILLS

A rational method for a careful consideration of the effect of raising or lowering the grade line in mountainous terrain, especially where crossfalls are heavy, on the aggregate cost of earth-works in cut and retaining walls in fill is presented. The optimum position of the grade line corresponding to the minimum cost was determined from the integral equations for the volume of the cut and the adjoining retaining wall, each multiplied by an appropriate unit rate. Graphs were given illustrating the influence of the nature of the material in cut, the ratio of the length of cut to that of the adjoining fill, the crossfall, and the sum of the depth of cut and height of the adjoining fill on the optimum position of the grade line. The whole work seems to be an interesting job although it is restricted to a very special configuration of the retaining wall and to a number of simplified assumptions. In the reviewer's opinion the whole problem is a complicated one and necessitates an extensive and meticulous study of its development. The work is of interest to designers in providing a quick means of assessing the optimum position for the grade line.

• Authors:
  • Ledochowski, V
• Publication Date: 1973-5

Media Info

• Pagination: p. 123-128
• Serial:
  • Civil Aeromedical Institute Report
  • Volume: 15
  • Issue Number: 5

Subject/Index Terms

• TRT Terms: Excavations; Fills; Grading (Earthwork); Integral equations; Mountains; Retaining walls
• Old TRIS Terms: Cross fall; Grading (Earthworking)
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00082860
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 26 1975 12:00AM