Statistically Analysis for the Stability of Various Protection Modes of Expansive Soil Cutting Slope

2019 International Conference on Virtual Reality and Intelligent Systems (ICVRIS) Pub Date : 2019-09-01 DOI:10.1109/ICVRIS.2019.00084

Shengting Li, Lijian Wu, Xiaolin Bian, Chang-seob Song, Peng Li, Zhijie Han

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引用次数: 2

Abstract

Expansive soils are widely distributed in southwest of China and are used frequently in highway construction. The stability of protection mode for expansive soil cutting slope is widely concerned by engineers. Through a large number of field research, laboratory tests, test section construction and monitoring, especially the use of statistical analysis, this research identified the most suitable protection mode is arch skeleton for expansive soil cutting slope of highway. According to the logistic regression, t-test, and other statistical analysis results, this study concluded that the slope stability rate reached 86.84% after protection with arch skeleton. Therefore, arch skeleton is significantly better than other modes of protection, p=0.0581. In addition, this study found that the height and slope rate had a great influence on the stability of expansive soil cutting slope. It is recommended that the slope rate of expansive soil cutting slope should not be steeper than 1:1.5 and the slope height should not exceed 6m.

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膨胀土路堑边坡各种防护方式稳定性的统计分析

膨胀土在中国西南地区分布广泛，在公路建设中应用较多。膨胀土路堑边坡防护方式的稳定性一直是工程界普遍关注的问题。通过大量的现场调研、室内试验、试验段施工和监测，特别是运用统计分析方法，确定了公路膨胀土路堑边坡最适合的防护模式为拱骨架。根据logistic回归、t检验等统计分析结果，本研究得出拱骨架保护后边坡稳定率达到86.84%。因此，拱形骨架明显优于其他保护方式，p=0.0581。此外，本研究还发现高度和坡速对膨胀土路堑边坡的稳定性有很大影响。建议膨胀土路堑边坡斜率不宜大于1:1.5，坡高不宜超过6m。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 International Conference on Virtual Reality and Intelligent Systems (ICVRIS)

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