嵌锁式面板加筋挡土墙结构研究
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摘要
为了克服传统加筋挡土墙面板连接性能较差、整体刚度不足、加筋锚固措施不力的缺陷,提出了一种新型面板结构形式—嵌锁式加筋挡土墙面板结构,其采用了系列嵌锁、反包式面板以及和土工加筋材料相结合的技术,在上下相邻面板之间设置齿榫和齿槽,形成"咬合嵌锁"的受力机制,从而增强面板整体结构的整体稳定性,形成可靠、高效连接。加筋材料反包内置面板的连接技术,可大幅提高加筋材料和面板之间的连接性能,同时将加筋材料封闭在墙体内部,有效延缓了加筋材料的老化。基于ABAQUS分析软件的5种仿真对比试验,证明了该挡墙结构在承载能力、锚固安全方面具有明显优势,同时相较于传统挡土墙,具有施工便捷、造价经济的独特优势。
In order to overcome the defects of poor connection performance, insufficient overall stiffness and inadequate reinforcement and anchorage measures of traditional reinforced retaining wall panels, interlocking reinforced retaining wall panels was proposed, which adopts a series of interlocking, reverse-encapsulated panels and a combination of geotechnical reinforcement materials. The mortise and groove were set between the upper and lower adjacent panels to form force mechanism of "occlusion and interlocking" to enhance the overall stability of the panel structure and form reliable and efficient connections. The connection technology of reinforced material reverse-wrapping built-in panel can greatly improve the connection performance between reinforced material and panel, at the same time, the reinforced material was sealed inside the wall, which could effectively delay the aging of reinforced material. Five kinds of simulation and contrast tests based on ABAQUS prove that the retaining wall structure has obvious advantages in bearing capacity and anchorage safety. And compared with the traditional retaining wall, it has the unique advantages of convenient construction and cost-effective.
In order to overcome the defects of poor connection performance, insufficient overall stiffness and inadequate reinforcement and anchorage measures of traditional reinforced retaining wall panels, interlocking reinforced retaining wall panels was proposed, which adopts a series of interlocking, reverse-encapsulated panels and a combination of geotechnical reinforcement materials. The mortise and groove were set between the upper and lower adjacent panels to form force mechanism of "occlusion and interlocking" to enhance the overall stability of the panel structure and form reliable and efficient connections. The connection technology of reinforced material reverse-wrapping built-in panel can greatly improve the connection performance between reinforced material and panel, at the same time, the reinforced material was sealed inside the wall, which could effectively delay the aging of reinforced material. Five kinds of simulation and contrast tests based on ABAQUS prove that the retaining wall structure has obvious advantages in bearing capacity and anchorage safety. And compared with the traditional retaining wall, it has the unique advantages of convenient construction and cost-effective.
引文
[1]JTJ D30-2015公路路基设计规范[S].北京:中国交通出版社,2015JTJ D30-2015 Highway Subgrade Design Code[S]. Beijing:China Traffic Press, 2015
[2]JTJ D61-2005公路圬工桥涵设计规范[S].北京:中国交通出版社,2005JTJ D61-2005 Code for Design of Highway Masonry Bridges and Culverts[S]. Beijing:China Traffic Press, 2005
[3]JTJ D62-2004公路钢筋混凝土及预应力混凝土桥涵设计规范[S].北京:中国交通出版社,2004JTJ D62-2004 Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts[S]. Beijing:China Traffic Press, 2004
[4]JTJ D63-2007公路桥涵地基与基础设计规范[S].北京:中国交通出版社,2007JTJ D63-2007 Code for Design of Foundation and Foundation of Highway Bridges and Culverts[S]. Beijing:China Traffic Press, 2007
[5]JTJ/T D32-2012公路土工合成材料应用技术规范[S].北京:中国交通出版社,2012JTJ/T D32-2012 Technical Specifications for the Application of Highway Geosynthetics[S]. Beijing:China Traffic Press, 2012
[2]JTJ D61-2005公路圬工桥涵设计规范[S].北京:中国交通出版社,2005JTJ D61-2005 Code for Design of Highway Masonry Bridges and Culverts[S]. Beijing:China Traffic Press, 2005
[3]JTJ D62-2004公路钢筋混凝土及预应力混凝土桥涵设计规范[S].北京:中国交通出版社,2004JTJ D62-2004 Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts[S]. Beijing:China Traffic Press, 2004
[4]JTJ D63-2007公路桥涵地基与基础设计规范[S].北京:中国交通出版社,2007JTJ D63-2007 Code for Design of Foundation and Foundation of Highway Bridges and Culverts[S]. Beijing:China Traffic Press, 2007
[5]JTJ/T D32-2012公路土工合成材料应用技术规范[S].北京:中国交通出版社,2012JTJ/T D32-2012 Technical Specifications for the Application of Highway Geosynthetics[S]. Beijing:China Traffic Press, 2012