A PRELIMINARY REPORT ON NEW PHOTOGEOLOGICAL STUDIES TO DETECT UNSTABLE NATURAL SLOPES

A preliminary investigation of the stability problems of natural slopes in southern England was carried out in 1968/69 using air photographs in conjunction with existing literature and a limited field study. General photoreconnaissance included the study of slopes consisting of the inferior oolite overlying the lias south of Leicester, but with special attention to the scarp face of the Cotoswold Hills between Broadway and Bath, the lower greensand overlying the weald clay on the escarpment south and west of Sevenoaks in Kent and the upper greensand overlying the gault on the Isle of Wight and in Dorset. This study indicated that instability on slopes consisting of A clay overlain by a bed of significantly greater permeability was widespread enough to merit special attention. The following hypothesis was suggested to define the scope of further investigation. /Author/TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/04812085
• Corporate Authors:

  GEOLOGICAL SOCIETY

  BURLINGTON HOUSE, PICCADILLY
  LONDON,   United Kingdom  W1V 0JU
• Authors:
  • Watson, I
• Publication Date: 1971

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 133-137
• Serial:
  • QUARTERLY JOURNAL OF ENGINEERING GEOLOGY
  • Volume: 4
  • Issue Number: 2
  • Publisher: GEOLOGICAL SOCIETY
  • ISSN: 0481-2085

Subject/Index Terms

• TRT Terms: Aerial photography; Clay; Embankments; Geology; Permeability; Sedimentary rocks; Slope stability; Slopes; Soil stabilization; Surveys; Unstable soil
• Geographic Terms: United Kingdom
• Old TRIS Terms: Oolite; Photogeology
• ITRD Terms: 4006: Aerial photography; 4177: Clay; 4053: Geology; 5921: Permeability; 5783: Slope stability; 8119: United Kingdom
• Subject Areas: Design; Geotechnology; Highways; I41: General Soil Surveys;

Filing Info

• Accession Number: 00097812
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 10 1975 12:00AM