| 排水粉喷桩软基加固技术应用研究 |
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| 引用本文： | 马义成,高德清,李平.排水粉喷桩软基加固技术应用研究[J].路基工程,2011,0(3):126-128. |
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| 作者姓名： | 马义成 高德清 李平 |
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| 作者单位： | 1.江苏盛唐艺术投资有限公司, 南京 210018 |
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| 摘 要： | 排水粉喷桩复合地基法是一种新型的软基加固方法,该法利用粉喷桩施工时产生的侧向压力和竖向排水通道,加速土体中孔隙水的排出,以达到快速加固软土地基的目的。结合工程实际,运用Plaxis有限元软件对工法进行了数值模拟研究,发现排水粉喷桩复合地基法的沉降主要发生在排水固结区,且呈向下和向外逐渐减小的趋势,粉喷桩桩土应力比在1.8左右,孔隙水压力呈先增长后逐渐消散的过程。
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| 关 键 词： | 粉喷桩 塑料排水板 Plaxis软件 桩土应力比 |
| 收稿时间： | 2019-11-11 |
Application of Dry Jet Mixing Pile with Vertical Drain in Soft Foundation Reinforcement |
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| Authors: | MA Yi-cheng GAO De-qing LI Ping |
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| Affiliation: | MA Yi-cheng1,GAO De-qing2,3,LI Ping2,3 (1.Jiangsu Shengtang Art Investment Co.,Ltd.,Nanjing 210018,China,2.Institute of Geotechnical Engineering,Hohai University,Nanjing 210098,3.Key Laboratory of Geotechnical Mechanics and Dam Construction of Ministry of Education,China) |
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| Abstract: | Dry mixing pile with vertical drain is a new reinforcement method for soft foundation,which uses lateral pressure produced during dry mixing pile construction and vertical drainage channel to accelerate the drainage of pore water in soil mass for rapid reinforcement of soft foundation.In this paper,this method is numerically simulated using Plaxis finite element software combined with engineering practice.It is found that the settlement of composite foundation reinforced by dry mixing pile with vertical dra... |
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| Keywords: | dry jet mixing pile plastic drainage plate Plaxis software pile-soil stress ratio |
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