【摘要】：為解決長(zhǎng)江高填方護(hù)岸深厚覆蓋層地基的抗滑穩(wěn)定問(wèn)題,采用振沖置換法對(duì)地基進(jìn)行加固處理。計(jì)算分析表明,振沖碎石樁處理范圍、樁間距、樁長(zhǎng)等參數(shù)應(yīng)結(jié)合地形、地質(zhì)條件進(jìn)行設(shè)計(jì),振沖置換法與其他地基處理方式進(jìn)行有機(jī)結(jié)合能夠取得更好的處理效果;護(hù)岸地基通過(guò)振沖置換處理后,抗滑穩(wěn)定性能夠滿足規(guī)范要求。采用振沖碎石樁對(duì)軟弱地基進(jìn)行置換形成復(fù)合地基,能夠有效解決地基砂土液化問(wèn)題、承載力問(wèn)題及抗剪強(qiáng)度問(wèn)題。
[Abstract]:In order to solve the problem of anti-slide stability of the deep overburden foundation of the high fill bank of the Yangtze River, the method of vibration and impact replacement is adopted to reinforce the foundation. The calculation and analysis show that the parameters such as the treatment range, pile spacing and pile length should be combined with terrain and geological conditions, and the combination of vibroflotation replacement method and other foundation treatment methods can achieve better treatment effect. The anti-slip stability of the revetment foundation can meet the requirements of the code. The composite foundation can be formed by replacing the soft foundation with vibroflotation gravel pile, which can effectively solve the problems of liquefaction, bearing capacity and shear strength of the foundation.
【作者單位】： 長(zhǎng)江勘測(cè)規(guī)劃設(shè)計(jì)研究院;
【分類號(hào)】：TV861

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