ANALYSIS OF THE WORK OF MACHINES FOR EARTHWORKS IN A MODERN MACHINE-SOIL SYSTEM

IN PLANNING THE ORGANIZATION OF WORK THE OPERATION OF MACHINES IS ASSESSED GENERALLY ACCORDING TO SOIL CLASS, AN OVERSIMPLIFICATION SINCE IT FAILS TO TAKE INTO ACCOUNT THE CHANGES ON THE SOIL SURFACE DUE TO MOISTURE, CHANGING COMPACTNESS, OR FROST ACTION. CALCULATIONS HAVE BEEN MADE TO DETERMINE THE VARIABILITY OF THE DRIVING FORCE AND LOOSENING AND PUSHING RESISTANCE FOR SANDY LOAM AS A FUNCTION OF VARIABLE MOISTURE CONTENT. AT VARIOUS PARAMETERS DRIVING FORCE DEPENDS ON THE MAGNITUDE OF SLIP AND MOISTURE, WITH THE MAXIMUM FORCE APPEARING AT MOISTURE W EQUALS 10 PERCENT. AS MOISTURE INCREASES THE DRIVING FORCE DECREASES; FOR EXAMPLE, AT W EQUALS 20 PERCENT IT AMOUNTS TO BARELY 60 PERCENT OF THE FORMER VALUE. THE EXAMPLE PRESENTED HERE SHOWS THAT THE ANALYSIS OF THE WORK OF MACHINES FOR EARTHWORKS IN A MACHINE-SOIL SYSTEM IS MORE EFFECTIVE THAN ASSESSMENT ACCORDING TO "SOIL CLASS".

• Corporate Authors:

  Polish Union of Building Engineers and Technicians

  Czackigo 3-5
  Warsaw,   Poland 
• Authors:
  • Wislicki, A
• Publication Date: 1970

Media Info

• Pagination: p. 152-7
• Serial:
  • Building Review
  • Volume: 42
  • Issue Number: 11-2
  • Publisher: Polish Union of Building Engineers and Technicians

Subject/Index Terms

• TRT Terms: Analysis; Construction equipment; Earthwork; Machinery; Properties of materials; Soil water; Soils
• Uncontrolled Terms: Soil properties
• Subject Areas: Geotechnology; Highways; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 00219515
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 26 2003 12:00AM