畢業(yè)論文-客運(yùn)專線鐵路沉降位移觀測(cè)(已修改)
2025-06-22 11:29 本頁(yè)面
【正文】 畢業(yè)設(shè)計(jì)（論文）專用紙 ————————————————————————————— ————————— 1 摘 要 為確保高速列車的行車安全，盡量滿足旅客對(duì)舒適度的要求，并減少日常維修工作，客運(yùn)專線路基工后沉降控制標(biāo)準(zhǔn)越來(lái)越高。本文主要介紹了鐵路路基沉降的控制標(biāo)準(zhǔn)，影響鐵路路基沉降的因素以及控制鐵路路基沉降的控制方法。 建立了有限元模型，模擬逐級(jí)加荷條件下路基的沉降變形，為路基填筑施工控制提供了科學(xué)的參考；分析軌道與列車荷載特點(diǎn)，對(duì)軌道、列車荷載在穩(wěn)定、沉降計(jì)算中的考慮方式與簡(jiǎn)化形式提出了建議，同時(shí)用分離式和復(fù)合模量?jī)煞N方法對(duì)某高速鐵路客運(yùn)專線段復(fù)合地基加固路基在列車荷載作用下的沉降特性進(jìn)行了有限元分析，計(jì)算 結(jié)果驗(yàn)證了黃土復(fù)合地基剛度加固設(shè)計(jì)的可靠性；介紹了沉降設(shè)施的布置原則和技術(shù)要求及工后沉降量推算計(jì)算方法；以武廣鐵路客運(yùn)專線實(shí)測(cè)數(shù)據(jù)為基礎(chǔ)，分析了超載預(yù)壓路基沉降規(guī)律及特征，總結(jié)了與之相適應(yīng)的評(píng)估技術(shù)要求和經(jīng)驗(yàn)；通過(guò)對(duì)各種基礎(chǔ)形式的荷載傳遞特性、復(fù)合地基的形成條件等內(nèi)容的研究，提出客運(yùn)專線路基沉降控制分析應(yīng)根據(jù)路堤基底墊層形式、加固樁的類型，采用復(fù)合地基或復(fù)合樁基理論進(jìn)行；對(duì)管樁網(wǎng)結(jié)構(gòu)復(fù)合地基的變形特征和影響因素進(jìn)行了分析。 關(guān)鍵詞： 沉降控制； 路堤填筑； 列車荷載；超載預(yù)壓；復(fù)合地基 畢業(yè)設(shè)計(jì)（論文）專用紙 ————————————————————————————— ————————— 2 Abstract To ensure highspeed train traffic safety, to meet the requirements of visitors fort and reduce routine maintenance work: the controlling standards of the post— construction settlement of passenger dedicated line is increasingly . the article briefly introduces the standard of the control of the railway embankment settlement, the factors of affecting the railway embankment settlement and controlling methods for the settlement of the railway . The article establish finite element model to simulate the subgrade under the conditions of Progressive Loading Settlement , then provide a scientific reference for construction control of embankment filling . It analysises the characteristics of the track and the train loading , consider the form of remendations on the track, the train load in the stability of settlement calculation and simplified way . At the same time it finite element analysis to a highspeed dedicated passenger railway embankment section of Composite Foundation under train load settlement characteristics with two ways separate and posite modulus . The results verify the loess posite foundation stiffness reliability of reinforcement . The article briefly introduces the foundation principles and technical requirements , and the amount of settlement . It analysises of the Settlement Law of surcharge preloading and features and s ummarizes the corresponding assessment of technical requirements and experience based on the dedicated to the measured data WuhanGuangzhou Passenger . Based on the studying for various forms of load transfer characteristics of the formation of posite ground conditions , it Proposes subgrade settlement control analysis should be based on embankment cushion form, the type of pile reinforcement . The ground deformation characteristics and influencing factors are analyzed in the plex structure of pipe work . Key words: settlement controlling 。 filling embankment 。 train load 。 Surcharge preloading 。 the cushion form of the embankment base 畢業(yè)設(shè)計(jì)（論文）專用紙 ————————————————————————————— ————————— 3 目 錄 第 1 章 緒論 5 我國(guó)鐵路橋梁建設(shè)現(xiàn)狀 5 課題研究的意義 5 第 2 章 路基沉降控制標(biāo)準(zhǔn) 6 路基沉降控制的目的 6 路基沉降控制的標(biāo)準(zhǔn) 6 第 3 章 影響路基沉降因素 7 路堤填筑 7 工程概況 7 逐級(jí)加荷有限元模型的建立 8 建立有限元分析模型 8 計(jì)算參數(shù) 9 路基逐級(jí)填筑的模擬 10 數(shù)值計(jì)算結(jié)果分析 183
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