SITE INVESTIGATION, NORTH-WEST CORRIDOR, AREVALO-VALLADOLID SECTION

ESTUDIO PREVIO DE TERRENOS. CORREDOR DEL NOROESTE. TRAMO: AREVALO-VALLADOLID

THE OBJECT OF THIS INVESTIGATION IS THE DETERMINATION OF THE LITHOLOGICAL, STRUCTURAL AND GEOTECHNICAL CHARACTERISTICS WHICH COULD INFLUENCE A LINEAR TYPE STRUCTURE (ROAD). IT INCLUDES GEOLOGICAL SECTIONS, BOREHOLES AND MAPS. THE ZONE HAS THREE TYPES OF TERRAIN: THE HIGH PLATEAU, A DESERT REGION FORMED OF NON-RIPPABLE LIMESTONE; MARL ON THE SLOPES POSING PROBLEMS OF INSTABILITY, AGGRESSIVITY AND EROSION. THE PLAIN BETWEEN THE PLATEAU, FORMED OF PRECONSOLIDATED MIOCENE CLAY AND OF GENTLE TOPOGRAPHY, WOULD BE ADAPTED TO THE ALIGNMENT OF A ROAD; ITS LOW PERMEABILITY POSES PROBLEMS OF DRAINAGE AT CERTAIN PLACES. THESE TWO ZONES ARE DEVOID OF AGGREGATES; THERE IS HARDLY ANY LIMESTONE, AND GRAVEL USED FOR HYDRAULIC CONCRETE IS UNUSABLE FOR ROAD SURFACING DUE TO ITS ABRASIVENESS AND IRREGULAR DISTRIBUTION. THE THIRD ZONE, ROCKY BUT OF MODERATE TOPOGRAPHY, PRESENTS PROBLEMS OF EXCAVATION: CERTAIN ROCKS (WEATHERED SLATE, MARL AND SANDSTONE) ARE SUBJECT TO WEATHERING AND EROSION, HENCE A RISK OF BLOCKED SHOULDERS. POSSIBLE ALIGNMENTS ARE INDICATED.

  • Corporate Authors:

    MOP, SECRETARIA GENERAL TECNICA, SERVICIO DE PUBLICACIONES

    AVDA GENERALISIMO S/N
    MADRID,   Spain  16
  • Authors:
    • ALCAIDE, A
    • DEL PRADO, R
    • BONET, C
  • Publication Date: 1975-12

Language

  • Spanish

Media Info

  • Pagination: 84P
  • Serial:
    • Issue Number: 75/2

Subject/Index Terms

Filing Info

  • Accession Number: 01298602
  • Record Type: Publication
  • Source Agency: Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)
  • Files: ITRD
  • Created Date: Nov 21 2010 6:48AM