【正文】 .......................................................................................................................... 5 濕陷性黃土路基處理技術(shù) ....................................................................................... 5 濕陷性黃土的概念 ............................................................................................ 5 濕陷性黃土的特征 ............................................................................................ 5 濕陷原因 ............................................................................................................ 5 濕陷性黃土地基的處理 .................................................................................... 5 凍土地區(qū)路基處理技術(shù) ......................................................................................... 11 凍土的概念 ...................................................................................................... 11 凍土區(qū)不良工程地質(zhì)現(xiàn)象 .............................................................................. 12 凍土地區(qū)路基的處理 ...................................................................................... 13 軟土地區(qū)路基處理技術(shù) ......................................................................................... 17 軟土的概念 ...................................................................................................... 17 軟土的成因類型及工程特性 .......................................................................... 17 軟土路基的處理 .............................................................................................. 17 膨脹土地區(qū)路基處理技術(shù) ..................................................................................... 24 膨脹土的概念 .................................................................................................. 24 膨脹土的工程特性 .......................................................................................... 24 膨脹土的路基的病害 ...................................................................................... 25 影響脹縮變形 的主要因素 .............................................................................. 26 膨脹土地基處理 .............................................................................................. 27 第 3 章 路基排水與防護(hù) embankment slop is not only can prevent the subgrade from destruction of sand and water, but also can beautify the environment. In this paper ,there is an introduction about the popular slop protection technology and a analysis with the special structure of transition section of bridge .Finally, make a brief introduction about the main point of test and maintenance of high railway subgrade. Keywords: highspeedrailway subgrade disease subgrade settlement slopeprotection 目 錄 第 1 章 緒論 通過分析對(duì)路基沉降影響最為嚴(yán)重的特殊性質(zhì)土 (濕陷性黃土、軟土、凍土和膨脹土 )和水產(chǎn)生病害的機(jī)理，制定路基加固和防排水措施；路基邊坡不僅可以保證路基免受雨水風(fēng)沙的破壞，而且還能美化環(huán)境，本文對(duì)目前應(yīng)用比較成熟的邊坡防護(hù)技術(shù)作了介紹；通過分析路橋過渡段的特殊結(jié)構(gòu)，對(duì)目前常用的治理措施作了介紹；最后，就高速鐵路路基檢測(cè)維修重點(diǎn)做了簡(jiǎn)單介紹。然而，由于鐵路路基一直暴露在復(fù)雜的自然環(huán)境之中，受各種不確定性因素影響較大，路基沉降和遭受破壞等病害在所難免。 2021 屆 土木工程 學(xué)院 專 業(yè) 土木工程 學(xué) 號(hào) 學(xué)生姓名 指導(dǎo)教師 完成日期 2021 年 5 月 31 日 石家莊鐵道大學(xué)畢業(yè)論文 The Study on Highspeed Railway Subgrade Technology 高速鐵路路基工程專題技術(shù)探討 畢業(yè)論文成績(jī)單 畢業(yè)論文任務(wù)書 畢業(yè) 論文 開題報(bào)告 摘 要 高速鐵路是鐵路現(xiàn)代化的標(biāo)志之一，它具有快速、平穩(wěn)、無污染、安全舒適等優(yōu)點(diǎn)，是目前我國(guó)鐵路線路發(fā)展的主要方向。路基作為高速鐵路的基礎(chǔ)，它的堅(jiān)固平穩(wěn)與否，直接影響線路的運(yùn)行速度和安全性。 本論文通過查閱相關(guān)資料，經(jīng)分析整理，對(duì)以下幾方面做了總結(jié)歸納。 關(guān)鍵詞： 高速鐵路 路基病害 路基檢測(cè)維修 路基沉降 Abstract High speed railway as the symbol of the modernization of railway which features of high speed, stability, nonpollution, safe and fortable, etc. and it is the main development direction of the railway at present in China. Subgrade as the foundation of the high speed railway, its solidarity and stability have direct affect on operation speed and safety of line. However ,because the subgrade is always exposed in plex natural environment ,affecting by varies uncertainty factors, it is suffered from embankment settle and destroyed by disease. This paper, by consulting relevant information and with reference with analysis, make a summary of follow aspects: according to the analysis the special properties soil(collapsible loess, soft soil, frozen and expansive soil ) and the mechanism of water disease which affected heavily. And take measures of subgrade reinforcement and the drainage。 1 高速鐵路概述 ........................................................................................................... 1 高速鐵路路基 ........................................................................................................... 2 概述 .................................................................................................................... 2 常見病害 ............................................................................................................ 3 論文內(nèi)容 ............................................................................................................ 4 第 2 章 特殊性質(zhì)土壤處理 54 概述 ......................................................................................................................... 54 京滬高鐵施工實(shí)踐 ................................................................................................. 54 過渡段的結(jié)構(gòu)設(shè)計(jì)及質(zhì)量標(biāo)準(zhǔn) ...................................................................... 54 施工工藝及填筑參數(shù)的確定 .......................................................................... 55 注意事項(xiàng) .......................................................................................................... 60 效果 .....................................................................................