本文選題：深基坑 + 樁錨支護(hù)體系�。� 參考：《遼寧工程技術(shù)大學(xué)》2013年碩士論文

【摘要】：隨著城市建筑高度不斷增加,基礎(chǔ)的開挖深度也隨之增加,從而出現(xiàn)了大量的基坑工程。由于基坑工程的復(fù)雜性,基坑變形的計算理論尚不夠成熟,因此對基坑變形規(guī)律的研究具有重大的現(xiàn)實意義。本文以阜新鑫亞國際酒店基坑工程為背景,結(jié)合理論分析、現(xiàn)場監(jiān)測和數(shù)值模擬等多種手段,對基坑支護(hù)結(jié)構(gòu)的變形進(jìn)行了深入的研究,具體包括以下幾方面的內(nèi)容： (1)歸納了基坑支護(hù)的基本類型,總結(jié)了國內(nèi)外關(guān)于基坑工程的支護(hù)結(jié)構(gòu)設(shè)計理論、基坑變形計算方法,對支護(hù)結(jié)構(gòu)體系的適用范圍和經(jīng)濟(jì)性進(jìn)行了闡述,詳細(xì)介紹了樁錨支護(hù)結(jié)構(gòu)體系的計算理論； (2)結(jié)合阜新鑫亞國際酒店基坑工程,對現(xiàn)場監(jiān)測過程中所獲得的數(shù)據(jù)進(jìn)行整理和分析,得到了在深基坑開挖過程中支護(hù)樁水平位移、支護(hù)樁豎向位移、冠梁水平位移以及周邊建筑物豎向位移的變化規(guī)律； (3)介紹了有限單元法的基本思想,運用有限元軟件ADINA對基坑開挖進(jìn)行了數(shù)值模擬,得到了各工況條件下支護(hù)樁的變形和內(nèi)力。將實測數(shù)據(jù)與模擬數(shù)據(jù)進(jìn)行對比分析,并對二者產(chǎn)生差別的原因進(jìn)行了具體的分析。得到了基坑支護(hù)結(jié)構(gòu)設(shè)計中應(yīng)注意的關(guān)鍵部位,為支護(hù)結(jié)構(gòu)的設(shè)計提供了參考依據(jù)。
[Abstract]:With the increasing of the height of urban buildings, the excavation depth of foundation increases, thus a large number of foundation pit works appear. Because of the complexity of foundation pit engineering, the calculation theory of foundation pit deformation is not mature enough, so the study of foundation pit deformation law is of great practical significance. Based on the foundation pit engineering of Fuxin Xinya International Hotel, combined with theoretical analysis, field monitoring and numerical simulation, the deformation of foundation pit support structure is studied deeply in this paper, including the following aspects: 1) the basic types of foundation pit support are summarized, the design theory of supporting structure for foundation pit engineering at home and abroad, the calculation method of foundation pit deformation are summarized, and the applicable scope and economy of supporting structure system are expounded. The calculation theory of pile-anchor supporting structure system is introduced in detail. In combination with the foundation pit engineering of Fuxin Xinya International Hotel, the data obtained in the field monitoring process are sorted out and analyzed, and the horizontal displacement and vertical displacement of the supporting pile during the excavation of the deep foundation pit are obtained. The variation law of horizontal displacement of crown beam and vertical displacement of surrounding buildings; In this paper, the basic idea of finite element method is introduced, and the numerical simulation of foundation pit excavation is carried out by using finite element software ADINA, and the deformation and internal force of supporting pile under various working conditions are obtained. This paper compares the measured data with the simulated data, and analyzes the causes of the difference. The key points in the design of supporting structure of foundation pit are obtained, which provides a reference for the design of supporting structure.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU433

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本文編號：1980806