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土石坝体内土工格栅加筋机理的研究
Study on Mechanism of the Reinforcing Effect of Geogrid in Soil Dam
【摘要】 采用大型三轴仪对粒组成分不同的两种砾料进行了固结排水试验研究,并引入了等效围压的概念,对砾石土加筋效果、加筋机理、试验围压、土料性质等因素进行了较全面的分析研究,结果表明加筋能明显提高砾石土的强度和破坏应变,对土的破坏有延滞作用,砾石土的加筋效果与围压、砾石颗粒风化程度等有关。
【Abstract】 An experimental study on consolidation and drainage of two gravels with different grading was carried out using high-pressure large-scale tri-axial testing facility. A concept of equivalent surrounding pressure is introduced. An analysis was carried out on the effect and mechanism of reinforcement, experimental surrounding pressure and soil properties. Results show that the reinforcement can improve the strength and failure strain of the material and delay the failure of the soil. The effect of reinforcement of soil-gravel depends on the surrounding pressure and weathering of the gravel.
【Key words】 reinforced soil; model experiment; geogrid; equivalent surrounding pressure;
- 【文献出处】 重庆建筑大学学报 ,Journal of Chongqing Architecture University , 编辑部邮箱 ,2005年03期
- 【分类号】TV641
- 【下载频次】161