毛烏素沙漠高填方路基的穩(wěn)定性研究
[Abstract]:Since the late 1990s, with the rapid development of traffic construction in the west of China, many high fill subgrade has been built in desert areas, which is similar to the previous use of "climbing along the ground." The design principle and experience of low embankment (less than 5m) are not consistent. However, there is a lack of systematic research and summary on the design and protection technology and engineering experience of desert high embankment. The stability of high-fill embankment with aeolian sand is one of the main technical problems in desert highway construction. Therefore, this paper studies the stability of wind-sand high filling embankment according to the later operation condition of Yulin transit line high fill roadbed of 210 national highway. The main contents are as follows: 1. The related data of desert highway at home and abroad were investigated, and the physical and engineering mechanical properties of eolian sand in Maowusu desert were tested and analyzed, and the related statistical rules were put forward. On the basis of domestic and foreign data investigation and engineering field investigation, the factors affecting the stability of high embankment subgrade in desert area, the damage characteristics and the theoretical analysis methods are studied. The calculation model and theoretical method for stability of embankment with aeolian sand height are put forward. In this paper, the influence of different boundary conditions, grid division and unit rank on the accuracy of stability calculation results of high filling subgrade is analyzed by using Midas/GTS software for non-homogeneous embankment with high filling at bridgehead. According to the two conditions of stability analysis of homogeneous subgrade and heterogeneous roadbed, the finite element numerical simulation results are compared with the calculated results of theoretical analysis. 4. The influence of model parameters and geometric section size on the stability coefficient of eolian sand subgrade was analyzed by numerical simulation. The results show that the elastic modulus, Poisson's ratio and the height and width of the roadbed have relatively little influence on the overall stability of the roadbed, and the internal friction angle of the filler and the slope ratio of the side of the roadbed have significant effects on the stability of the roadbed. On the basis of field investigation, numerical simulation and theoretical analysis of the late stage operation of high fill roadbed in Yulin transit line of National Highway 210, the typical wind-sand filling section in Maowusu desert is calculated as an example. The design and protection technology of high fill roadbed in Maowusu desert are put forward.
【學(xué)位授予單位】:長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類(lèi)號(hào)】:U416.1
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 樊艷娣;李紹宏;;公路工程中高填方路基施工技術(shù)[J];山西建筑;2010年05期
2 王鐵法;黃雄飛;;高填方路基人工挖孔灌注樁施工技術(shù)[J];中外公路;2010年04期
3 任仁;;復(fù)雜地形條件下高填方路基穩(wěn)定性三維有限元分析[J];公路交通科技(應(yīng)用技術(shù)版);2011年05期
4 郭志東;杜智超;劉靜宜;;山區(qū)鄉(xiāng)村公路工程高填方路基處理技術(shù)措施[J];國(guó)防交通工程與技術(shù);2012年S2期
5 韋凌霄;秦彩霞;;淺談高填方路基施工質(zhì)量控制[J];科技視界;2013年24期
6 何順江;;高填方路基施工技術(shù)質(zhì)量控制要點(diǎn)探討[J];中華民居(下旬刊);2013年12期
7 彭子江;;淺析公路工程中高填方路基施工技術(shù)[J];黑龍江交通科技;2014年01期
8 王麗媛,王篤禮,丁建平,梁兵;沉降監(jiān)測(cè)指導(dǎo)高填方路基施工[J];工程勘察;2003年03期
9 王麗媛;用沉降監(jiān)測(cè)指導(dǎo)高填方路基施工[J];中國(guó)工程咨詢(xún);2003年03期
10 霍建廣;伍偉軍;;高填方新舊路基結(jié)合段填筑技術(shù)[J];華南港工;2003年03期
相關(guān)會(huì)議論文 前2條
1 劉宏;范永政;吳國(guó)慶;;九寨黃龍機(jī)場(chǎng)高填方變形機(jī)理與控制[A];第十屆中國(guó)科協(xié)年會(huì)論文集(四)[C];2008年
2 李明領(lǐng);;高原斜坡軟土地段高填方路基設(shè)計(jì)與施工[A];第八次全國(guó)巖石力學(xué)與工程學(xué)術(shù)大會(huì)論文集[C];2004年
相關(guān)重要報(bào)紙文章 前2條
1 陳仁文;十六局機(jī)化處筑成內(nèi)昆高填方路基[N];中國(guó)鐵道建筑報(bào);2000年
2 通訊員 高晶晶;河北高速路建設(shè)破難題穩(wěn)推進(jìn)[N];中國(guó)交通報(bào);2012年
相關(guān)博士學(xué)位論文 前5條
1 谷復(fù)光;吉林省某路段高填方路基沉降分析與研究[D];吉林大學(xué);2011年
2 資建民;高填方路基快速施工與沉降控制研究[D];華中科技大學(xué);2008年
3 童懷峰;高填方路基加寬后處理技術(shù)及變形性狀研究[D];鄭州大學(xué);2008年
4 王雯璐;側(cè)填荷載對(duì)高填方涵洞地基承載力的影響[D];吉林大學(xué);2011年
5 謝婉麗;黃土地區(qū)高填方加筋土路堤變形與穩(wěn)定性研究[D];西北大學(xué);2004年
相關(guān)碩士學(xué)位論文 前10條
1 胡玉嬌;毛烏素沙漠高填方路基的穩(wěn)定性研究[D];長(zhǎng)安大學(xué);2015年
2 王成鋒;山區(qū)機(jī)場(chǎng)高填方體沉降變形控制與評(píng)價(jià)[D];貴州大學(xué);2008年
3 姚曉平;高填方涵洞土壓力計(jì)算方法的試驗(yàn)研究[D];吉林大學(xué);2009年
4 趙曉冬;高填方路基的沉降速度分析與穩(wěn)定性研究[D];河北工業(yè)大學(xué);2002年
5 靳軍偉;高填方路基變剛度處理技術(shù)及設(shè)計(jì)方法研究[D];鄭州大學(xué);2010年
6 王瑞甫;高填方路基沉降計(jì)算及預(yù)測(cè)方法研究[D];湖南大學(xué);2003年
7 張杰;基于變形控制的高填方路基后處理技術(shù)參數(shù)研究[D];鄭州大學(xué);2011年
8 張,
本文編號(hào):2423117
本文鏈接:http://sikaile.net/kejilunwen/daoluqiaoliang/2423117.html