Centrifuge and Full Scale Modelling of Geotextile ReinforcedCohesive Soil Structures

土工织物增强粘性土结构的离心机和全尺寸建模

• 批准号: 9203089
• 负责人: Deborah Goodings
• 金额: $ 14.65万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-05-01 至 1996-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9203089&HistoricalAwards=false
• 关键词: Centrifuge; Full; Scale; Modelling; Geotextile

This research will use a series of geotechnical centrifuge models to explore the effect on geotextile reinforced constructed soil slope and soil retaining wall stability when the backfill is silt or clay. The four point focus will be on the effects on sloped wall stability of different batter angles; of the drainage characteristics of the system which includes permeability of the soil, the in-plane permeability of the geotextile, and the vertical spacing between layers of geotextile reinforcement; of the length of reinforcement; and of the addition of lime to the cohesive soil. The ultimate outcome will be the development of a simple analytical tool for design of walls and slopes which are less expansive to construct in areas where granular soils are not readily available.

本研究将采用一系列土工离心模型，探讨回填土为粉砂或粘土对土工布加筋土边坡及挡土墙稳定性的影响。重点研究了不同面壁角度对坡壁稳定性的影响；系统的排水特性包括土壤的渗透性、土工布的面内渗透性和土工布加固层之间的垂直间距；钢筋的长度；以及在粘性土壤中加入石灰。最终的结果将是开发一种简单的分析工具，用于设计在颗粒状土壤不容易获得的地区较少膨胀的墙壁和斜坡。