本文選題：基坑支護(hù)方案 + 決策��； 參考：《巖土力學(xué)》2016年S2期

【摘要】：基坑支護(hù)方案決策受決策者的風(fēng)險(xiǎn)態(tài)度和指標(biāo)的隨機(jī)模糊性影響與控制,是一個(gè)復(fù)雜的不確定性決策難題。應(yīng)用聯(lián)系數(shù)與累積前景理論的耦合方法,探討了基坑支護(hù)方案的聯(lián)系累積前景理論優(yōu)選新模型,即首先基于原始規(guī)范化的決策信息確定正、負(fù)理想方案,再基于聯(lián)系數(shù)理論定量統(tǒng)一描述待選方案與正、負(fù)理想方案間的確定和不確定關(guān)系,以構(gòu)建基于聯(lián)系前景效用價(jià)值函數(shù)的綜合決策模型,并求解最優(yōu)的權(quán)向量,確定合理的基坑支護(hù)方案。實(shí)例應(yīng)用和與其他方法結(jié)果對(duì)比表明,文中方法應(yīng)用于基坑支護(hù)方案優(yōu)選是有效可行的,且能定量表達(dá)待選方案與理想方案間的聯(lián)系和轉(zhuǎn)化態(tài)勢(shì),避免了基坑支護(hù)方案決策過程的非理性。
[Abstract]:The decision of foundation pit support scheme is influenced and controlled by the risk attitude of decision maker and the random fuzziness of index, which is a complicated and uncertain decision problem. By using the coupling method of connection number and cumulative foreground theory, a new model of optimal selection for foundation pit supporting scheme is discussed, that is, the positive and negative ideal schemes are first determined based on the original normalized decision information. Then, based on the connection number theory, the deterministic and uncertain relationships between the selected scheme and the positive or negative ideal schemes are described quantitatively and uniformly, in order to construct a comprehensive decision model based on the utility value function of the linkage foreground, and to solve the optimal weight vector. Determine a reasonable foundation pit support scheme. The results of practical application and comparison with other methods show that it is effective and feasible to apply this method to the optimal selection of foundation pit support schemes, and can quantitatively express the relationship and transformation situation between the alternatives and the ideal schemes. The irrationality of the decision process of foundation pit support scheme is avoided.
【作者單位】： 合肥工業(yè)大學(xué)土木與水利工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金(No.41172274,No.71273081)~~
【分類號(hào)】：TU473
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本文編號(hào)：1973534