加筋碎石复合体的大三轴试验研究

作者：乐茂华 高长胜 赵维炳 顾培

单位：深圳市治理深圳河办公室 南京水利科学研究院 南京水利科学研究院 深圳市治理深圳河办公室 广东深圳518038 江苏南京210024 江苏南京210024 广东深圳518038

关键词：加筋碎石  加筋层  应力应变特性

分类号：TU472.34

出版年,卷(期):页码：2007,31(3):42-44

摘要：

采用室内大三轴试验对不同密度与不同加筋层数的加筋碎石进行试验研究,得到了不同加筋复合体的应力应变特性,并对试验结果与加筋机理进行分析,试验结果表明:加筋土的加筋效果与加筋层、填料密度以及加筋材料等有关,加筋土的加筋机理符合“准粘聚力”理论。研究结果可用于指导设计与施工。

Reinforced crushed-stone soil mixture with different density and with different number of layers of reinforcement was tested with laboratory macro-triaxial testing procedures to obtain the stress and strain characteris- tics of different types of reinforced crushed-stone soil mixtures. The results of the tests and the mechanism of the reinforcement were analyzed. The test results showed that the reinforcing effect of reinforced soil mixture is related with the layers of reinforcement, density of fill material and reinforcing material. The reinforcing mechanism of the reinforced soil mixture was in compliance with the "quasi cohesive force" theory. The research results may be of guidance for designs and construction projects.

基金项目：

水利部“948”计划科技创新与转化项目(批准号:CT200409)

作者简介：

参考文献：

[1]张师德,吴邦颖.加筋土结构原理及应用[M].北京:中国铁道出版社,1986. [2]何光春.加筋土工程设计与施工[M].北京:人民交通出版社,2004. [3]雷胜有.加筋黄土的三轴试验研究[J].西安公路交通大学学报,2000(2). [4]吴雄志,赵乃茹.加筋土强度模型与应力应变特性研究[J].岩土工程学报,1992(6).

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