Risk analysis on swell–shrink capacity of expansive soils with efficacy coefficient method and entropy coefficient method
Risk analysis on swell–shrink capacity of expansive soils with efficacy coefficient method and entropy coefficient method
复制标题
功效系数法和熵系数法对膨胀土膨胀收缩能力的风险分析
DOI：
10.1016/j.clay.2014.07.005
复制
发表时间：
2014-09
影响因子：
5.6
通讯作者：
Qiang Zhang
中科院分区：
文献类型：
--
作者：
Yingchao Wang;Hongwen Jing;Lijun Han;Liyuan Yu;Qiang Zhang
膨胀土会对建筑物和结构造成巨大的破坏，并已被公认为是人口的风险源。膨胀土胀缩性的风险分析是评价膨胀土稳定性和安全性的基础。提出了一种新的风险分析模型--功效系数法和熵权系数法。基于多目标规划理论，采用功效系数法进行无量纲化处理，该方法是对单一功效系数新采用的方法，用以描述所考虑的评价指标的影响。同时，运用熵权系数法确定了各指标的权重系数。然后利用单一功效系数和权重系数计算出总功效系数，并以此来确定膨胀土胀缩性评价试样的胀缩性等级。将该方法的分类结果与已有的分类结果进行了比较，得到了预期的定性分类结果。因此，基于功效系数法和熵权系数法建立的膨胀土胀缩性风险预测模型是有效的。该模型具有较强的可行性和有效性，可为膨胀土的分类、风险管理、工程设计及其他工程应用提供参考。
Expansive soils can cause enormous damage to buildings and structures, and have been accepted as a risk source for the population. Risk analysis on swell–shrink capacity is essential for evaluating the stability and safety of expansive soils. A novel analysis model was put forward with efficacy coefficient method and entropy coefficient method for the risk analysis. The efficacy coefficient method was adopted in dimensionless treatment based on the theory of multi-objective programming, which was newly adopted for single efficacy coefficient to describe the influence of the considered evaluation index. Meanwhile, the entropy coefficient method was applied to determine the weight coefficient for each index. Then the single efficacy coefficient and the weight coefficient were used for calculating the total efficacy coefficient, which was presented to specify the grade of swell–shrink capacity for the evaluation samples of expansive soils. Furthermore, the classification results of the proposed method were compared with gainable results, and qualitative consistencies could be gained as expected. Therefore, the established model based on the efficacy coefficient method and entropy coefficient method is valid to predict risk analysis on swell–shrink capacity of expansive soils. Moreover, the presented model is more feasible and effective, which could provide useful ways for classification, risk management and design of projects on expansive soils as well as other engineering applications.
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影响因子：
1.6
作者：
S. Fityus;D. Cameron;P. F. Walsh
通讯作者：
S. Fityus;D. Cameron;P. F. Walsh
影响因子：
1.6
作者：
G. Rix;J. Meng
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G. Rix;J. Meng
影响因子：
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作者：
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F. A. Yitagesu;F. Meer;H. Werff;W. Zigterman
DOI：
10.1007/s11595-011-0224-2
发表时间：
2011-04
期刊：
Journal of Wuhan University of Technology-Mater. Sci. Ed.
影响因子：
--
作者：
Zhenshuang Wang;Li-jiu Wang;H. Su;Zhenglong Cui
通讯作者：
Zhenshuang Wang;Li-jiu Wang;H. Su;Zhenglong Cui
DOI：
--
发表时间：
2010
期刊：
Journal of Central South University of Forestry & Technology
影响因子：
--
作者：
Zhou Jian
通讯作者：
Zhou Jian