本文選題：深基坑 + 土壓力　； 參考：《遼寧工程技術(shù)大學(xué)》2013年碩士論文

【摘要】：隨著城市的迅速發(fā)展及城鎮(zhèn)化進(jìn)程的不斷推進(jìn)，深基坑工程日益增多，基坑周圍建筑物更為密集，地下設(shè)施錯(cuò)綜復(fù)雜，影響深基坑支護(hù)的不確定因素復(fù)雜多樣。而且深基坑施工和支護(hù)往往以經(jīng)驗(yàn)和工程類比法為主，尤其對(duì)支護(hù)方案的優(yōu)選和支護(hù)構(gòu)件的優(yōu)化研究的并不深入系統(tǒng)。因此本文采用模糊數(shù)學(xué)理論對(duì)深基坑支護(hù)方案進(jìn)行優(yōu)選，并運(yùn)用有限元拓?fù)浞椒▽?duì)支護(hù)樁進(jìn)行優(yōu)化。本文首先給出了基坑支護(hù)結(jié)構(gòu)與土體相互作用關(guān)系、土壓力的計(jì)算以及深基坑支護(hù)型式和分析模型，同時(shí)詳述了每種支護(hù)型式的技術(shù)參數(shù)及適用范圍。并確立了深基坑支護(hù)方案初選、終選和結(jié)構(gòu)校核以及對(duì)支護(hù)樁的有限元拓?fù)鋬?yōu)化四個(gè)程序。其次，結(jié)合模糊數(shù)學(xué)理論建立了深基坑方案優(yōu)化模糊評(píng)價(jià)方法，同時(shí)對(duì)支護(hù)樁進(jìn)行選型及強(qiáng)度校核，在此基礎(chǔ)上，給出了支護(hù)樁有限元拓?fù)鋬?yōu)化原理及方法。 最后，，結(jié)合沈陽(yáng)南華廣場(chǎng)深基坑支護(hù)工程，對(duì)其支護(hù)方案運(yùn)用模糊數(shù)學(xué)理論，比較分析了樁錨式和內(nèi)撐式兩種支護(hù)方案，確立了適合工程條件的樁錨式支護(hù)方案進(jìn)行設(shè)計(jì)，并用等值梁法進(jìn)行了穩(wěn)定性驗(yàn)算。最后對(duì)支護(hù)樁運(yùn)用拓?fù)浞椒ㄟM(jìn)行了優(yōu)化分析，得出了在不同優(yōu)化目標(biāo)下支護(hù)樁合理的拓?fù)浣Y(jié)構(gòu)，且優(yōu)化后構(gòu)件在滿足強(qiáng)度的同時(shí)提高了材料的利用率。
[Abstract]:With the rapid development of the city and the development of urbanization, the construction of deep foundation pit is increasing day by day, the buildings around the foundation pit are more dense, the underground facilities are complicated, and the uncertain factors affecting the support of deep foundation pit are complex and diverse. And deep foundation pit construction and support are often based on experience and engineering analogy, especially for the optimal selection of support schemes and support components optimization research is not in-depth and systematic. In this paper, the theory of fuzzy mathematics is used to optimize the support scheme of deep foundation pit, and the topology method of finite element is used to optimize the supporting pile. In this paper, the interaction between foundation pit support structure and soil mass, the calculation of earth pressure, and the support type and analysis model of deep foundation pit are given, and the technical parameters and applicable range of each support type are described in detail. Four programs, including primary selection, final selection and structural checking, and topology optimization of finite element method for supporting piles are established. Secondly, combined with fuzzy mathematics theory, the fuzzy evaluation method of deep foundation pit scheme optimization is established. At the same time, the type selection and strength check of supporting pile are carried out. On this basis, the principle and method of finite element topology optimization of supporting pile are given. Finally, combined with the deep foundation pit support project of South China Square in Shenyang, this paper compares and analyzes two kinds of support schemes, pile anchor type and inner support type, and establishes the design of pile anchor support scheme suitable for engineering conditions by using the theory of fuzzy mathematics. The stability is checked by the equivalent beam method. Finally, the topology method is used to optimize the supporting pile, and the reasonable topology structure of the supporting pile is obtained under different optimization objectives, and the optimized component not only satisfies the strength but also improves the utilization ratio of the material.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU753

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 曹雙寅,方東,蔣永生;整體式支護(hù)結(jié)構(gòu)設(shè)計(jì)的優(yōu)化分析[J];工業(yè)建筑;1997年10期

2 袁勇,劉亞芹;單排灌注樁基坑圍護(hù)結(jié)構(gòu)優(yōu)化設(shè)計(jì)[J];建筑結(jié)構(gòu);1996年04期

3 陳明中,龔曉南,梁磊;深層攪拌樁支護(hù)結(jié)構(gòu)的優(yōu)化設(shè)計(jì)[J];建筑結(jié)構(gòu);1999年05期

4 何滿潮,乾增珍,汪仁和;BP神經(jīng)網(wǎng)絡(luò)在深基坑工程支護(hù)方案優(yōu)選的應(yīng)用[J];礦業(yè)研究與開(kāi)發(fā);2004年02期

5 徐年豐,陳勝宏;我國(guó)巖土預(yù)應(yīng)力錨索加固技術(shù)的發(fā)展與存在的問(wèn)題[J];水利水電快報(bào);2001年10期

6 王成華,王卓雄,陳海明;基坑擋土結(jié)構(gòu)的粒子群優(yōu)化設(shè)計(jì)方法[J];天津大學(xué)學(xué)報(bào);2005年06期

7 楊曉軍,龔曉南;基坑開(kāi)挖中考慮水壓力的土壓力計(jì)算[J];土木工程學(xué)報(bào);1997年04期

8 周瑞忠,潘是偉;基于遺傳算法的深基坑支護(hù)結(jié)構(gòu)優(yōu)化設(shè)計(jì)[J];土木工程學(xué)報(bào);2004年06期

9 李鐘;深基坑支護(hù)技術(shù)現(xiàn)狀及發(fā)展趨勢(shì)(一)[J];巖土工程界;2001年01期

10 徐楊青;深基坑工程設(shè)計(jì)的優(yōu)化原理與途徑[J];巖石力學(xué)與工程學(xué)報(bào);2001年02期

本文編號(hào)：2032002