题名: |
Soil Mechanics 2014. Transportation Research Record (TRR): Journal of the Transportation Research Board, No. 2462. |
关键词: |
Asphalt Pavement-sand Blend; Flexible Pavements; Geosynthetic-reinforced Soil (grs); Grid Mat Reinforcement; Projects; Reclamation; Soil; Stabilized Soils; Three-dimensional Numerical Models |
摘要: |
Soil Mechanics 2014 consists of 15 articles that examine the effects of fines content on hydraulic conductivity and shear strength of granular structural backfill; an evaluation of AASHTO default values for pullout friction factor (f*) for steel grid mat reinforcement; strength and creep characteristics of reclaimed asphalt pavement-sand blend backfill in mechanically stabilized earth walls; a full-scale investigation of differential settlements beneath a geosynthetic-reinforced soil bridge abutment; and a case study on instrumenting and testing full-scale test piles for evaluating setup phenomena.This TRR also explores large-diameter pipe piles driven for the Ebey Slough Bridge replacement project in Marysville, Washington; a field test and three-dimensional numerical analysis of a soil-steel tunnel during backfilling; the Fr??hlich Theory-based approach for analysis of stress distribution in a layered system; a performance evaluation of roadway subdrain outlets in Iowa; and seismic performance of geosynthetic-encased stone columns.Additionally, this TRR summarizes a long-term evaluation of geosynthetic reinforcement of flexible pavements constructed over thick organic soil deposits; an investigation of geogrid-reinforced railroad ballast behavior using large-scale triaxial testing and discrete element modeling; killing the Ettringite reaction in sulfate-bearing soils; modeling the drying process of unbound soils and cementitiously stabilized soils; and a comparison of full-depth reclamation with foamed asphalt and full-depth reclamation with no stabilizer in accelerated loading tests. |
报告类型: |
科技报告 |