基于耦合评价模型的深基坑支护优化设计

摘要

利用信息熵和模糊层次分析法的基本原理，提出深基坑支护优化设计的耦合评价模型。该方法充分考虑优化过程中安全可靠性、造价、环境影响和工期等诸多指标因素。通过信息熵所反映指标本身的效用值来修正主观权重，建立了耦合评价模型，克服传统优化方法权重随意性的缺点。最后通过实例分析，验证了耦合评价模型的合理性和可靠性。%Based on the basic principle of information entropy and FAHP, the coupling assessment model-based optimization design of bracing system is presented for deep foundation pit. The method takes full consideration of various target factors like reliability, construction cost, environmental impact and construction period. To avoid the casualness in determining subjective weight with traditional optimization method, the coupling assessment model is established in accordance with information entropy. The rationality and reliability of the evaluation model are proven through a practical case.