土工袋一体化柔性挡墙结构的性能
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TU413

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国家自然科学基金项目(51679018);重庆市基础科学与前沿技术研究专项(CSTC2017JCYJA1410);中央高校专项资金项目(106112016CDJXY200003)。


Research on integrated retaining wall constructed with soilbag
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    摘要:

    土工袋体之间摩擦力不足是造成土工袋挡墙整体性较差的主要原因,现阶段增强土工袋挡墙整体性的研究较少。以传统土工袋挡墙为基础,通过对墙体结构形式进行改良,提出了一种土工袋一体化柔性挡墙结构。结合室内模型试验,研究了以砂土为填料的土工袋一体化柔性挡墙结构在竖向和水平荷载作用下的墙面位移、受拉装置的应力分布规律,并与传统土工袋挡墙和加筋土挡墙进行对比分析,探讨了该挡墙结构水平承载力机制及变形机理,并进行了稳定性分析。该柔性挡墙产生一体化效果并形成连续墙体,有效控制墙面变形,提高墙体抗变形能力,使其稳定性和水平承载力比传统土工袋挡墙高。

    Abstract:

    The lack of friction between soilbags was the main reason for poor integrity of soilbag flexible retaining wall. At present,there are few researches about how to enhance integrity of soilbag retaining wall. In order to improve the wall structure of the traditional soilbag retaining wall,integrated soilbag flexible retaining wall structure which has the advantages of good integrity,and strong ability of deformation coordination was proposed. Combined with the laboratory model test,the wall displacement and stress distribution law of the tension device were studied under the vertical and horizontal loads of integrated soilbag flexible retaining wall structure with sand as filler. A comparison is made between the flexible retaining wall and the traditional soilbag and the reinforced retaining wall in terms of the horizontal bearing capacity,deformation mechanism and stability. The flexible retaining wall produces an integrated effect and formes a continuous wall,which effectively controls the deformation of the wall surface and improves the deformation ability of the wall,so the stability and horizontal bearing capacity are higher than that of the conventional soilbag retaining wall.

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卢谅,智贤平,王宗建,黄辉,吴近明.土工袋一体化柔性挡墙结构的性能[J].重庆大学学报,2019,42(5):27-36.

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  • 收稿日期:2018-12-19
  • 在线发布日期: 2019-05-24
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