STUDY OF PAVEMENT SUPPORTING SOIL
项目名称: STUDY OF PAVEMENT SUPPORTING SOIL
摘要: (1) TO STUDY THE BEHAVIOUR OF SOILS SUPPORTING PAVEMENTS UNDER REPEATED LOADINGS: ELASTIC CHARACTERISTICS, LAWS OF PERMANENT DEFORMATIONS, LIMIT STRENGTH RESULTING IN RAPID LARGE-SCALE PERMANENT DEFORMATIONS. (2) TO CONTINUE STUDYING THE BEHAVIOUR OF FINE SOIL STABILIZED WITH HYDRAULIC BINDERS IN THE PRESENCE OF FROST, THE MECHANICAL PROPERTIES OF SOIL DURING THAWING AND TO CARRY OUT A FROST SWELLING TEST ON A 0/20 MM SOIL. (3) A BIBLIOGRAPHIC STUDY OF THE BEHAVIOUR OF SOIL AND GRAVEL UNDER REPEATED LOADINGS WAS CONDUCTED. TWO REPETITIVE LOADING TRIAXIAL DEVICES BECAME OPERATIONAL IN 1978. A STUDY OF SOILS WAS STARTED (SILT AND GRANITIC SANDSTONE). THE STUDY OF THE BEHAVIOUR OF FINE STABILIZED SOIL IN THE PRESENCE OF FROST WAS CONTINUED. (4) THE PROGRAMME OF REPETITIVE LOADING TRIAXIAL TESTS WILL BE CONTINUED. THE FACTORS STUDIED ARE THE MOISTURE CONTENT AND RATE OF COMPACTION SO AS TO DEFINE THE THRESHOLDS S0, S1, S2 OF THE 1977 CATALOGUE OF STRUCTURES. DEVICES WITH LATERAL RESTRAINT VARYING IN PHASE WITH THE DEVIATION WILL BE DEVELOPED. (5) A STUDY OF THE SUSCEPTIBILITY TO FROST OF FINE STABILIZED SOIL (LIME AND CEMENT) WILL BE CONTINUED, RELATING FROST SWELLING TO EVOLUTION IN STRENGTH. THE SWELLING OF 0/20 SOIL IN THE PRESENCE OF FROST WILL BE INVESTIGATED. A TESTING DEVICE FOR DETERMINING THE SOIL MODULUS DURING THAW WILL BE UNDER EXAMINATION.
状态: Active
资助组织: MINISTERE DES TRANSPORTS (MINISTRY OF TRANSPORT)<==>MINISTERE DE L'ENVIRONNEMENT ET DU CADRE DE VIE (MINISTRY OF ENVIRONMENT AND QUALITY OF LIFE)
项目负责人: PAUTE, J L
执行机构: LABORATOIRES DES PONTS ET CHAUSSEES - ROAD AND BRIDGE LABORATORIES
开始时间: 19770000
预计完成日期: 19780000
主题领域: Pavements;I26: Water Run-off - Freeze-thaw;I42: Soil Mechanics
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