层次分析法与灰色关联分析在深基坑支护方案评选中的应用

深基坑支护工程的选择是十分复杂的系统工程问题,需考虑造价、质量、安全、周边环境等因素。应用层次分析法,构建评价模型,得到各因素的权重值。在此基础上进行灰色关联分析,得出与理想方案的关联度,从而获取最优的支护方案。结果表明:该方法能够处理信息不完全、复杂、多层次的问题,结果及过程客观准确,可操作性强。

THE APPLICATION OF AHP AND GREY RELATIONAL ANALYSIS IN SELECTION OF THE SUPPORTING SCHEME OF DEEP EXCAVATIONS

The selection of protecting engineering for deep excavation is a highly complicated systematic engineering,which needs the consideration of cost,quality,security,surrounding environment and other factors.With the use of analytic hierarchy process(AHP),an evaluation model will be constructed to get the weight of each factor.on this basis,through grey relational analysis,the best supporting programs will be obtained from the correlation with the ideal scheme.The results show that the method can deal with the problem of incomplete information,complexity and multi-level,the process and result are objective and precise.The operability of this method is good.