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河道边坡是城市河道整治的重点内容之一,科学合理的护坡形式有助于提高河道整治效果。针对河道护坡方案的优选问题,选用G1法计算评价指标主观权重、逼近理想点法计算指标客观权重、基于离差平方和的综合集成赋权法计算指标综合权重,并利用该综合权重进行方案评估优选。对承德市滦河河道护坡方案优选结果表明,利用基于离差平方和的综合集成赋权法优选的河道护坡方案与利用模糊物元法优选的结论相一致,具有可行性、合理性。
River slope is one of the key contents of urban river regulation, scientific and rational form of slope protection helps to improve the river regulation effect. In view of the optimization problem of river slope protection scheme, the method of G1 is adopted to calculate the subjective weight of evaluation index, the objective weight of index is approximated by ideal point method, the integrated weight of index is calculated based on the sum of square of deviations, and the comprehensive weight is used to evaluate the scheme Preferred. The results of the slope protection scheme of Luanhe River in Chengde City show that it is feasible and reasonable to use the method of integrated integrated weighting based on the sum of squares of deviations to reconstruct the river slope protection scheme which is best selected by fuzzy matter-element method.