本文選題：深基坑 + 模糊積分　； 參考：《中原工學院》2017年碩士論文

【摘要】：隨著城市中高層、超高層建筑以及地下空間的不斷發(fā)展,與之相匹配的深基坑工程也越來越多。對于深基坑工程,一個“好”的支護設(shè)計方案在能夠保證安全要求的前提下達到縮減造價費用的目的。然而,一個“不好”的支護設(shè)計方案縱然是成本再高,安全性也不一定能夠保證。因此,深基坑支護設(shè)計方案的優(yōu)化就顯得特別重要。深基坑工程是一項綜合性很強的系統(tǒng)工程,在對其支護方案進行優(yōu)選時需要考慮的影響因素眾多,這些因素中有些是可以定量的,而有的則較難得到定量值,這類因素往往具有不同程度的模糊性。針對這種情況,本文采用模糊積分理論,主要開展了以下的研究工作:(1)首先對深基坑支護方案優(yōu)選的評價指標具有模糊性及相互影響的特點進行了具體的分析研究,以模糊積分的基本理論為基礎(chǔ),對現(xiàn)在的Sugeno型模糊積分進行了改進,給出了基于改進Sugeno模糊積分的深基坑支護方案優(yōu)選模型。(2)運用該優(yōu)選模型對某一工程實例進行分析研究,驗證了該模型的可行性與實用性,并選出土釘墻支護方案為最優(yōu)方案。(3)以所選擇的最優(yōu)方案土釘墻支護方案為基礎(chǔ),運用遺傳算法基本原理,構(gòu)建以支護方案造價最低為目標函數(shù),建立土釘墻優(yōu)化設(shè)計的數(shù)學模型,并利用Matlab遺傳工具箱進對工程實例進行優(yōu)化設(shè)計,通過與原設(shè)計的對比分析,驗證了該優(yōu)化設(shè)計模型的可行性。研究成果對深基坑支護方案的優(yōu)選及優(yōu)化設(shè)計具有一定的理論價值,對改善深基坑支護結(jié)構(gòu)的設(shè)計具有一定的實際應(yīng)用價值。
[Abstract]:With the development of high-rise building and underground space in the city, there are more and more deep foundation pit projects. For deep foundation pit engineering, a "good" supporting design scheme can reduce the cost under the premise of ensuring safety requirements. However, a "bad" support design scheme, even if the cost is high, the safety is not necessarily guaranteed. Therefore, it is very important to optimize the design scheme of deep foundation pit support. Deep foundation pit engineering is a comprehensive and systematic project. There are many factors that need to be considered in the optimization of its supporting scheme. Some of these factors can be quantified, while others are difficult to obtain quantitative value. Such factors often have varying degrees of ambiguity. In view of this situation, this paper adopts fuzzy integral theory, mainly carries out the following research work: 1) first of all, the characteristics of fuzzy and mutual influence on the evaluation index of optimal selection of deep foundation pit support scheme are analyzed and studied concretely. Based on the basic theory of fuzzy integral, the present Sugeno fuzzy integral is improved, and the optimal selection model of deep foundation pit support scheme based on improved Sugeno fuzzy integral is given. The feasibility and practicability of the model are verified, and the soil nailing wall support scheme is selected as the optimal scheme. Taking the lowest cost of the support scheme as the objective function, the mathematical model of soil nailing wall optimization design is established, and the Matlab genetic toolbox is used to carry out the optimization design of the engineering example, and through the comparison and analysis with the original design, The feasibility of the optimal design model is verified. The research results have certain theoretical value for the optimal selection and design of deep foundation pit support scheme, and have certain practical application value for improving the design of deep foundation pit supporting structure.
【學位授予單位】：中原工學院
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TU753

【參考文獻】

相關(guān)期刊論文 前10條

1 劉保縣;戴佳偉;舒志樂;;變權(quán)層次分析法在深基坑支護方案優(yōu)選中的應(yīng)用[J];西華大學學報(自然科學版);2016年06期

2 曹凈;錢國偉;劉海明;任亞亮;;考慮支護結(jié)構(gòu)變形的基坑土壓力計算[J];四川建筑科學研究;2016年04期

3 蔣英禮;鄧子勝;王冬英;;基于集對分析方法的深基坑支護方案優(yōu)選研究[J];地下空間與工程學報;2016年01期

4 牛發(fā)陽;王建波;趙佳;王琛;;深基坑支護方案灰色模糊綜合評價[J];青島理工大學學報;2016年01期

5 王曉杰;楊仕若;駱建軍;;地鐵深基坑開挖數(shù)值模擬分析與開挖監(jiān)測[J];廣東建材;2015年12期

6 常志朋;朱克朋;張濤;;基于模糊積分的區(qū)間數(shù)多屬性決策方法[J];統(tǒng)計與決策;2015年10期

7 王望珍;陳翼飛;李素芹;毛寶林;;基于博弈論和相對熵的基坑支護方案優(yōu)選[J];數(shù)學的實踐與認識;2015年06期

8 張海濤;;改進層次分析法在深基坑方案優(yōu)選中的應(yīng)用[J];江漢大學學報(自然科學版);2014年06期

9 黎昌珍;梁家榮;;基于直覺模糊積分的多屬性決策方法[J];廣西大學學報(自然科學版);2014年06期

10 祝彥知;程楠;;基于多級改進模糊積分模型的橋梁結(jié)構(gòu)選型優(yōu)化[J];系統(tǒng)工程;2014年11期

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本文編號：1889647