CURRENT STATUS OF THE EMBANKING METHOD USING AIR-MIXED LIGHTWEIGHT SOIL FOR EXPRESSWAYS

Since the construction of embankments for expressway is subject to restrictions on such factors as right-of-way acquisition, terrain, and natural enviroment preservation, there are cases in which steep gradient or vertical embankments are build. In such special conditions, Japan Highway Public Corporation adopts a lightweight embanking method using air-mixed lightweight soil, as one of the vertical embanking methods. This method is effective for various purposes including road widening, reduction of earth pressure acting on bridge abutments, and embankments on steep inclined grounds. So far, a total volume of about 920,000m3 has been constructed for expressway embankments by this method. However, although the fundamental properties of air-mixed lightweight soil used for this method have already been verified, there are still several factors requiring a detailed study such as long-term strength characteristics and internal stress conditions under loading. For studying these subjects, the corporation has been conducting field and laboratory tests on the long-term performance of the material.

• Corporate Authors:

  THE JAPANESE GEOTECHNICAL SOCIETY

  SUGAYAMA BLDG., KANDA AWAJI-CHO
  CHIYODA-KU, TOKYO  Japan  101-0063
• Authors:
  • Sano, Y
  • OGATA, K
  • KITAMURA, Y
  • MASUMURA, K
• Conference:
  • PROCEEDINGS OF THE INTERNATIONAL WORKSHOP ON LIGHTWEIGHT GEO-MATERIALS
• Publication Date: 2002-3

Language

• English

Media Info

• Features: References;
• Pagination: p. 207-214

Subject/Index Terms

• TRT Terms: Construction; Earthwork; Embankments; Freeways; Lightweight materials; Loads; Roads; Soils; Textbooks; Time duration
• Uncontrolled Terms: Long term
• ITRD Terms: 3655: Construction; 3653: Earthworks; 2801: Embankment; 2755: Highway; 9038: Lightweight; 5567: Load; 9110: Long term; 2752: Motorway; 4156: Soil; 8526: Textbook
• Subject Areas: Construction; Geotechnology; Highways;

Filing Info

• Accession Number: 00938851
• Record Type: Publication
• Source Agency: Public Works Research Institute
• Files: ITRD
• Created Date: Mar 7 2003 12:00AM