水位升降過程中崩解預(yù)處理炭質(zhì)泥巖路堤穩(wěn)定性分析
[Abstract]:In order to study the stability of carbonaceous mudstone embankment during water level rise and fall, on the basis of discussing the influencing factors of embankment stability, combined with the basic theory of seepage flow and stability analysis, a new kind of embankment can consider the water level pressure and pore water pressure at the same time. The stability analysis method of embankment with pore water gravity, permeability, softening and unsaturated strength is presented. Based on this method, the seepage characteristics and stability of carbonaceous mudstone embankment during water level rise and fall are calculated. The results show that the proposed method has strong applicability and pertinence, it can comprehensively evaluate the stability of carbonaceous mudstone embankment under the influence of many factors, the rising period of water level and the constant period of high water level, the underground water level inside the embankment, The pore water pressure and saturation increase gradually, the increase amplitude of pore water pressure is inversely proportional to the elevation, the increase amplitude of saturation is proportional to the elevation, the horizontal inward, vertical downward permeability and its peak value, and the horizontal displacement increase first. After decreasing, the vertical displacement increases continuously, the groundwater level, pore water pressure and saturation in the embankment gradually decrease during the period of water level falling and the low water level is constant, and the decrease of pore water pressure is inversely proportional to the elevation. The degree of saturation decrease is proportional to the elevation, the horizontal outward permeability and its peak value, the horizontal outward and vertical downward displacement, the plastic strain area first increases and then decreases, and the vertical downward permeability is "distributed". The research results have certain reference significance for the construction and stability control of carbonaceous mudstone embankment in reservoir and riparian area.
【作者單位】: 長沙理工大學(xué)道路結(jié)構(gòu)與材料交通行業(yè)重點(diǎn)實(shí)驗(yàn)室;長沙理工大學(xué)土木與建筑學(xué)院;長沙理工大學(xué)交通運(yùn)輸工程學(xué)院;
【基金】:國家自然科學(xué)基金項(xiàng)目(51508040,51508079,51678073,51678074) 湖南省自然科學(xué)基金項(xiàng)目(2016JJ3010) 湖南省教育廳優(yōu)秀青年項(xiàng)目(17B013) 湖南省研究生科研創(chuàng)新項(xiàng)目(CX2016B383) 道路結(jié)構(gòu)與材料交通行業(yè)重點(diǎn)實(shí)驗(yàn)室開放基金項(xiàng)目(kfj150305)
【分類號】:U416.12
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 劉冬;趙麗萍;;高水位地區(qū)路堤分級施工方法研究[J];交通標(biāo)準(zhǔn)化;2009年23期
2 李濤;付宏淵;周功科;莫?jiǎng)P;曾鈴;;降雨入滲條件下粗粒土路堤暫態(tài)飽和區(qū)發(fā)展規(guī)律及穩(wěn)定性研究[J];水文地質(zhì)工程地質(zhì);2013年05期
3 陳建峰,石振明,張雷,沈明榮;路堤工程幾種變形控制標(biāo)準(zhǔn)的比較[J];公路交通科技;2003年05期
4 滕玉波,劉艷雯,王天陽;淺談路堤填筑方式[J];黑龍江交通科技;2003年11期
5 李元明,蔡國軍,劉松玉;加速度法對填筑階段路堤地基穩(wěn)定性的評價(jià)[J];山西建筑;2005年12期
6 王建元;;疏樁支撐路堤方案設(shè)計(jì)與分析[J];公路交通科技(應(yīng)用技術(shù)版);2008年08期
7 楊云;;幾種輕質(zhì)路堤材料特性及應(yīng)用[J];廣東水利水電;2008年05期
8 劉永軍;曲直;楊淑君;路耀平;;變質(zhì)巖路堤濕化變形試驗(yàn)研究[J];山東交通學(xué)院學(xué)報(bào);2012年04期
9 劉國兵;;固化淤泥路堤填筑施工工藝[J];技術(shù)與市場;2013年06期
10 陸永青;粉噴樁在路堤軟基處理中應(yīng)用的探討[J];路基工程;1998年04期
相關(guān)會(huì)議論文 前7條
1 邢金雪;;路堤塌陷處理[A];公路交通與建設(shè)論壇(2009)[C];2010年
2 劉明維;黃世武;尹健;;膨脹土斜坡地基路堤失穩(wěn)破壞有限元極限分析[A];第二屆中國水利水電巖土力學(xué)與工程學(xué)術(shù)討論會(huì)論文集(一)[C];2008年
3 崔n,
本文編號:2274776
本文鏈接:http://sikaile.net/kejilunwen/daoluqiaoliang/2274776.html