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首页> 外文会议>International Symposium on Safety Science and Technology; 20061024-27; Changsha(CN) >Filtration for Deep Foundation Pit Bracing Scheme Based on Fuzzy Duboise-Prade
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Filtration for Deep Foundation Pit Bracing Scheme Based on Fuzzy Duboise-Prade

机译：基于模糊Duboise-Prade的深基坑支护方案过滤

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摘要

The preliminary choice for foundation pit bracing scheme was based on SWER analysis technology, namely, Strengths, Weaknesses, Emergences, and Realizations, all of which are factors during the filtration for deep foundation pit bracing scheme in a material edifice. Quantitative evaluation index, expressed by trapezoid fuzzy number, transformed from qualitative evaluation index in preliminary choice can be obtained by using Fuzzy MADM, and then the fuzzy weight value of every influence factor can be normalized by using the Dubois-Prade method, and the fuzzy utility values of every foundation pit bracing scheme are calculated and compared with the fuzzy utility value in order to get the best bracing scheme. Studies had demonstrated that the uncertainty, dizziness and the mutual interaction of each factor should not be underestimated when deep foundation pit bracing scheme was chosen besides considering geology condition, construction technology, investment, surrounding environment, etc. This method has certain directive significance to the practical project compared with conventional method, which provides a comprehensive, reasonable and scientific basis for design, construction and management of foundation pit bracing.
机译：基坑支护方案的初步选择是基于SWER分析技术，即优势，劣势，突现和实现，所有这些都是在建筑物中对深基坑支护方案进行过滤的因素。可以使用Fuzzy MADM获得由初步选择的定性评价指标转化为梯形模糊数表示的定量评价指标，然后可以采用Dubois-Prade方法对各个影响因子的模糊权重进行归一化，计算每个基坑支护方案的效用值，并将其与模糊效用值进行比较，以获得最佳支护方案。研究表明，在选择深基坑支护方案时，除考虑地质条件，施工工艺，投资，周围环境等因素外，不应低估各个因素的不确定性，眩晕和相互影响。与传统方法相比，该项目具有实用性，为基坑支护的设计，施工和管理提供了全面，合理，科学的基础。

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