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由于固结沉降、降雨或地震等作用,在软土或新老地基结合处,不均匀沉降现象是一种常见的工程病害,采用加筋土结构来调整不均匀沉降是工程上常用的处理措施。然而,现阶段关于加筋土结构在不均匀沉降条件下筋材变形规律的理论研究尚少,且工程实践往往先于理论研究。为完善并简化加筋土结构的设计理论,以加筋土结构中筋材变形为研究对象,在基于抛物索理论的基础上,提出了一种在不均匀沉降下加筋土结构筋材变形的计算方法。通过室内模型试验并结合理论分析初步验证了该计算方法的可行性和准确性。该方法计算简便,不需要反复的数值模拟,计算结果能够满足实际工程的精度需要,对进一步完善加筋土结构设计的计算理论具有一定的意义。
Uneven settlement is a common engineering disease due to the effect of consolidation settlement, rainfall or earthquake. It is a common engineering treatment to adjust the uneven settlement by using reinforced earth structure . However, there are few theoretical researches on the deformation law of the reinforced concrete under the condition of uneven settlement at this stage, and the engineering practice often precedes the theoretical research. In order to improve and simplify the design theory of reinforced soil structure, taking the deformation of reinforced material in reinforced soil as the research object, based on parabolic theory, a new method of deformation of reinforced soil structure under uneven settlement is proposed Calculation method. The feasibility and accuracy of this calculation method are verified through indoor model test and theoretical analysis. The method is easy to calculate and does not require repeated numerical simulation. The calculated results can meet the needs of the actual project accuracy and have some significance to further improve the calculation theory of reinforced earth structure design.