STABILIZATION OF LANDSLIDES IN THE SERRA DO MAR

THE LANDSLIDE IN THE SERRA DO MAR SLOPE, IN THE AREA OF ELEVATION 500 AT ANCHIETA HIGHWAY, INCLUDES AN AREA OF 200,000 SQUARE METERS, ENDANGERING THE TRAFFIC OF THE ROAD COMING FROM THE ANCHIETA HIGHWAY. HISTORY OF THE SLIDE IS DISCUSSED PRIOR TO AND DURING THE PRESENT STUDY AND CONTENTION WORKS. THE GEOLOGIC INVESTIGATIONS ARE DESCRIBED IN DETAIL. SUPERFICIAL MAPPING AND SOUNDING WAS DONE WITH SPECIAL METHODS AND CARE, TO RECOGNIZE AND SAMPLE THE SOILS AND ALTERED ROCKS. LABORATORY RESULTS ARE MENTIONED IN NONDEFORMED SAMPLES AND THE STABILITY ANALYSIS. STABILIZATION WORKS BY MEANS OF INSTALLING DEEP HORIZONTAL DRAINS UP TO 120 METERS OF LENGTH ARE DESCRIBED. THE CORRESPONDING IMPROVEMENT IN THE STABILITY IS SHOWN BY GRAPHIC ANALYSIS OF THE NUMBER OF DRAINS, DRAIN FLOW, RAINFALL, AND THE GUIDEPOSTS DISPLACEMENT. AFTER FIVE YEARS, SINCE THE CONTENTION WORKS WERE STARTED, THE LANDSLIDES OF ELEVATION 500 HAVE BEEN STABLE AND HAVE NOT REACTIVATED WITH THE BIG RAINFALLS IN 1967, WHEN SEVERAL OTHER GREAT LANDSLIDES OCCURRED IN SERRA DO MAR. /RRI/

• Corporate Authors:

  Road Research Institute /Brazil

  ,    
• Authors:
  • Teixerira, A H
  • Kanji, M A
• Publication Date: 1970

Subject/Index Terms

• TRT Terms: Flow; Geological surveying; Graphics; Guideposts; Highways; Horizontal drains; Laboratory studies; Landslides; Mapping; Methodology; Rainfall; Rocks; Samples; Slopes; Soil stabilization; Soils; Sounding; Stability analysis
• Uncontrolled Terms: Graphical analysis; Sliding; Stabilization
• Old TRIS Terms: Geologic investigations
• Subject Areas: Design; Environment; Geotechnology; Highways;

Filing Info

• Accession Number: 00204827
• Record Type: Publication
• Source Agency: Road Research Institute /Brazil
• Files: TRIS
• Created Date: May 16 1971 12:00AM