本文關(guān)鍵詞：時(shí)代帝景基坑支護(hù)結(jié)構(gòu)穩(wěn)定性及位移分析　出處：《遼寧工程技術(shù)大學(xué)》2013年碩士論文　論文類(lèi)型：學(xué)位論文

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【摘要】：本文通過(guò)對(duì)北京時(shí)代帝景深基坑工程的工程地質(zhì)資料、錨索軸力檢測(cè)數(shù)據(jù)、相關(guān)位移檢測(cè)數(shù)據(jù)以及施工開(kāi)挖支護(hù)進(jìn)度資料等的分析處理,并且采用數(shù)值模擬方法,對(duì)深基坑的樁錨支護(hù)結(jié)構(gòu)體系的受力和變形特性進(jìn)行了研究。研究取得了以下主要結(jié)果和結(jié)論： (1)支護(hù)樁的最大水平位移發(fā)生在基坑坑壁的中下部,基坑內(nèi)部土體的水平位移量沿遠(yuǎn)離基坑支護(hù)結(jié)構(gòu)的方向逐漸減小�；釉谒椒较虬l(fā)生的整體側(cè)移是向坑內(nèi)的位移,整體水平側(cè)移運(yùn)動(dòng)趨勢(shì)呈圓弧滑動(dòng)。 (2)通過(guò)對(duì)基坑的數(shù)值模擬分析,得到了樁錨結(jié)構(gòu)內(nèi)力與巖土體位移隨開(kāi)挖支護(hù)的響應(yīng)變化,從變化云圖和相應(yīng)節(jié)點(diǎn)值的提取曲線上來(lái)看,發(fā)展態(tài)勢(shì)與實(shí)測(cè)情況基本相符。在彎矩的模擬值的變化來(lái)看,與實(shí)際測(cè)得的彎矩值相差不大,對(duì)工程實(shí)際施工中,具有現(xiàn)實(shí)的指導(dǎo)意義。
[Abstract]:In this paper, the engineering geological data, the testing data of anchor cable axial force, the relative displacement detection data and the construction and excavation support progress data of the deep foundation pit of the times of Beijing times are analyzed and processed. The mechanical and deformation characteristics of the pile-anchor supporting structure system of deep foundation pit are studied by numerical simulation method. The main results and conclusions are as follows: 1) the maximum horizontal displacement of the supporting pile occurs in the middle and lower part of the pit wall. The horizontal displacement of soil in the foundation pit decreases gradually along the direction far away from the supporting structure of the foundation pit. The overall lateral displacement of the foundation pit in the horizontal direction is the displacement in the pit and the movement trend of the whole horizontal lateral movement is circular sliding. 2) through the numerical simulation analysis of foundation pit, the responses of the internal force of pile and anchor structure and the displacement of rock and soil with the excavation support are obtained, which can be seen from the changing cloud map and the extraction curve of the corresponding node value. The development trend is basically consistent with the measured results, and the variation of the simulated moment values is not different from the actual measured moment values, which is of practical significance to the practical construction of the project.
【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(lèi)號(hào)】：TU470

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