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首页> 外文期刊>Journal of terramechanics >Prediction of soil deformation beneath temporary airfield matting systems based on full-scale testing
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Prediction of soil deformation beneath temporary airfield matting systems based on full-scale testing

机译：基于全面测试的临时机场消光系统下的土壤变形预测

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This paper presents results from full-scale evaluations of an aluminum structural mat system with regard to carrying heavy aircraft across graded, but unimproved, soil with California Bearing Ratios (CBRs) of 6, 10, 15, 25, and 100. The objective was to determine relationships among soil deformation rate, the mat's flexural modulus, the number of applied passes, and the underlying soil's CBR. Current prevailing performance prediction models for aluminum mat systems are based on full-scale tests using historic aircraft loads over soils having a CBR of 4 that were never validated for soils with higher CBR values. Full-scale test results presented herein demonstrated the inability of current models to accurately predict mat permanent deformation. Strong correlations were found between measured and predicted data across the entire spectrum of soil CBRs. These relationships can be used to noticeably improve the accuracy of performance prediction models. An empirical equation was developed to reasonably predict subgrade deformation for any number of passes and soil CBR for the loading and mat system tested.
机译：本文介绍了铝制结构垫系统的全面评估结果，该系统涉及携带重型飞机穿越坡度为6、10、15、25和100的加利福尼亚州但未经改良的土壤。目标是确定土壤变形率，垫的挠曲模量，施加的通过次数和下层土壤的CBR之间的关系。当前用于铝垫系统的主要性能预测模型是基于全面测试，该测试使用的历史飞机载荷在CBR为4的土壤上，而CBR值较高的土壤从未经过验证。本文提供的全面测试结果证明了当前模型无法准确预测垫子的永久变形。在土壤CBR的整个光谱范围内，实测数据与预测数据之间存在很强的相关性。这些关系可以用来显着提高性能预测模型的准确性。建立了一个经验方程，可以合理地预测任意数量的道次和测试的荷载和垫层系统的土壤CBR的路基变形。

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