[1]陈俊博,张 弦.排水管桩沉桩后桩周土体固结解析解[J].西安建筑科技大学学报(自然科学版),2021,53(05):636-642.[doi:10.15986/j.1006-7930.2021.05.004 ]
　CHEN Junbo,ZHANG Xian.Analytical solution of soil consolidation around drainage pipe pile after pile driving[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2021,53(05):636-642.[doi:10.15986/j.1006-7930.2021.05.004 ]
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排水管桩沉桩后桩周土体固结解析解()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
53
期数:
2021年05期
页码:
636-642
栏目:
出版日期:
2021-10-25

文章信息/Info

Title:
Analytical solution of soil consolidation around drainage pipe pile after pile driving
文章编号:
1006-7930(2021)05-0636-07
作者:
陈俊博1; 张 弦2
(1.郑州信息科技职业学院 基建处,河南 郑州 450046; 2.武汉大学 水资源与水电工程科学国家重点实验室,湖北 武汉4300722)
Author(s):
CHEN Junbo1;  ZHANG Xian2
(1.Zhengzhou Vocational University of Information and Technology, Zhengzhou 450046,China; 2.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China)
关键词:
排水管桩; 固结; 孔压; 固结度; 开孔率
Keywords:
drainage pipe pile;  consolidation;  pore pressure;  consolidation degree;  opening ratio
分类号:
TU473
DOI:
10.15986/j.1006-7930.2021.05.004
文献标志码:
A
摘要:
排水管桩的概念渐渐被工程界熟知,是软基处理的一种新思路.结合排水管桩的特点,推导得出沉桩后桩周土体内的孔压和固结度解答.并根据所得解答,对沉桩后桩周土体内的超孔隙水压力的消散特性进行分析.结果表明:距桩体较近处的超孔隙水直接沿着排水桩排出,而距离桩体较远处的超孔隙水先流向弹性低压区,再转头流向排水桩排出.随着开孔率β的增加,孔压的消散变快.当β超过10-7时,继续增大其值对加快孔压消散的效果不明显.
Abstract:
The concept of drainage pipe pile, which is a new idea of soft foundation treatment, is gradually known by the engineering field. By considering the characteristics of the drainage pipe pile, the solution of pore pressure and consolidation degree in the soil around the pile after pile driving is derived. According to the obtained solution, the dissipation characteristics of excess pore water pressure in the soil around the pile after pile driving are analyzed. The results show that the excess pore water near the pile is directly discharged along the drainage pile, while that far away from the pile first flows to the elastic low-pressure zone, and then turns to the drainage pile.With the increase of opening ratio β, the pore pressure dissipates faster, and when β exceeds 10-7, the increase of the opening ratio has little impact on the dissipation of the excess pore-water pressure.

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备注/Memo

备注/Memo:
收稿日期:2020-08-02修改稿日期:2021-09-15
基金项目:国家自然科学基金项目(No.51779183)
第一作者:陈俊博(1979-),女,工学硕士,讲师,从事建筑工程施工管理和建筑工程施工技术研究.E-mail: t319796173@126.com
更新日期/Last Update: 2021-10-25