發(fā)布時(shí)間：2018-10-05 08:01

【摘要】：近年來,我國城市軌道交通快速發(fā)展,車輛段土地利用率低的特點(diǎn)也會(huì)不斷凸顯,車輛段物業(yè)上蓋會(huì)越來越多的應(yīng)用在實(shí)際工程中。但是上蓋物業(yè)開發(fā)工程不可避免的對(duì)既有車輛段運(yùn)用庫結(jié)構(gòu)的內(nèi)力及下部基礎(chǔ)變形產(chǎn)生影響。一方面,車輛段運(yùn)用庫上蓋物業(yè)開發(fā)工程施工增加了既有地鐵車輛段運(yùn)用庫的荷載,對(duì)既有結(jié)構(gòu)內(nèi)力產(chǎn)生影響,如果內(nèi)力增加過大,則有可能影響結(jié)構(gòu)安全及耐久性；另一方面,新建工程荷載的增加造成既有車輛段運(yùn)用庫基礎(chǔ)結(jié)構(gòu)沉降,下部結(jié)構(gòu)沉降會(huì)造成運(yùn)用庫內(nèi)軌道的沉降及幾何形位的變化,嚴(yán)重時(shí)會(huì)影響運(yùn)營安全。國內(nèi)車輛段物業(yè)上蓋工程有成功案例也有教訓(xùn)值得吸取,上蓋施工對(duì)既有車輛段結(jié)構(gòu)及軌道的影響和控制的研究是具有指導(dǎo)意義的。 論文主要研究內(nèi)容如下： 1收集、分析和總結(jié)國內(nèi)外車輛段物業(yè)上蓋工程特點(diǎn),對(duì)其與車輛段影響進(jìn)行系統(tǒng)分析,結(jié)合車輛段物業(yè)開發(fā)實(shí)例對(duì)上蓋工程的經(jīng)驗(yàn)教訓(xùn)進(jìn)行總結(jié)； 2論文分析了施工荷載及永久荷載條件下運(yùn)用庫結(jié)構(gòu)的受力特點(diǎn)。新建運(yùn)用庫上蓋工程在施工過程中及施工完成后均會(huì)對(duì)既有運(yùn)用庫結(jié)構(gòu)造成影響,利用結(jié)構(gòu)分析SAP2000建立地鐵車輛段運(yùn)用庫結(jié)構(gòu)三維模型,模擬各工況下施工過程對(duì)既有車輛段運(yùn)用庫結(jié)構(gòu)所造成的內(nèi)力變化并驗(yàn)證結(jié)構(gòu)的安全性。 3論文采用半理論—半經(jīng)驗(yàn)法及有限元法對(duì)車輛段物業(yè)上蓋工程造成的運(yùn)用庫基礎(chǔ)及軌道沉降進(jìn)行分析,進(jìn)一步對(duì)比半理論—半經(jīng)驗(yàn)法、數(shù)值分析法計(jì)算結(jié)構(gòu),討論兩種方法計(jì)算的特點(diǎn),使模擬其更符合實(shí)際工程。 4基于監(jiān)測數(shù)據(jù)對(duì)車輛段運(yùn)用庫基礎(chǔ)及軌道變形進(jìn)行分析。對(duì)監(jiān)測數(shù)據(jù)進(jìn)行擬合,并將模擬計(jì)算結(jié)果與實(shí)測變形結(jié)果進(jìn)行對(duì)比分析,驗(yàn)證計(jì)算模型的可靠性,并總結(jié)車輛段運(yùn)用庫基礎(chǔ)及軌道的沉降特點(diǎn)； 5論文分析了各風(fēng)險(xiǎn)控制階段的風(fēng)險(xiǎn)因素,并提出針對(duì)性的控制措施,提出風(fēng)險(xiǎn)管理流程控制,控制車輛段物業(yè)上蓋工程造成既有地鐵結(jié)構(gòu)的風(fēng)險(xiǎn)。
[Abstract]:In recent years, with the rapid development of urban rail transit in China, the characteristics of low land utilization rate of depot will continue to be highlighted, and the property superstructure of depot will be used more and more in practical projects. However, the development of superstructure property inevitably affects the internal force of the existing depot structure and the deformation of the lower foundation. On the one hand, the construction of the depot property development project increases the load of the existing subway depot, which has an effect on the internal force of the existing structure. If the internal force increases too much, it may affect the safety and durability of the structure. On the other hand, the increase of the load of the new construction will cause the foundation structure settlement of the existing depot, and the settlement of the substructure will cause the settlement of the track and the change of the geometry, which will seriously affect the operation safety. There are some successful cases and lessons to be learned in the domestic car depot superstructure construction, and the research on the influence and control of the existing depot structure and track is of guiding significance. The main contents of this paper are as follows: 1 collecting, analyzing and summarizing the characteristics of domestic and foreign car depot property superstructure, and systematically analyzing its influence on the depot. Combined with the real estate development of the depot, the experiences and lessons of the upper cover engineering are summarized. 2. The stress characteristics of the applied storehouse structure under the conditions of construction load and permanent load are analyzed in this paper. During the construction process and after the completion of the construction, the new construction and application of the upper cover of the storehouse will have an impact on the existing application reservoir structure. Using the structural analysis of SAP2000 to establish the three-dimensional model of the subway depot structure. The internal force changes caused by the application of the depot structure in the existing depot during the construction process are simulated and the safety of the structure is verified. (3) the semi-theory-semi-empirical method and the finite element method are used to analyze the applied reservoir foundation and track settlement caused by the property superstructure of the depot, and the calculation structure is further compared with the semi-theory-semi-empirical method and the numerical analysis method. The characteristics of the two methods are discussed in order to make the simulation more suitable for practical engineering. Based on the monitoring data, the depot foundation and track deformation are analyzed. Fitting the monitoring data and comparing the simulation results with the measured deformation results to verify the reliability of the calculation model and summarize the characteristics of the depot foundation and track settlement of the depot. 5. The paper analyzes the risk factors of each risk control stage, and puts forward the corresponding control measures, and puts forward the risk management flow control to control the risk of the existing subway structure caused by the property superstructure of the depot.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU433;U231

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