高级搜索
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊

排水板真空度损耗的排水固结解析解

蒋基安, 陈海英, 陈越, 叶佳雯

蒋基安, 陈海英, 陈越, 叶佳雯. 排水板真空度损耗的排水固结解析解[J]. 岩土工程学报, 2016, 38(3): 404-418. DOI: 10.11779/CJGE201603003
引用本文: 蒋基安, 陈海英, 陈越, 叶佳雯. 排水板真空度损耗的排水固结解析解[J]. 岩土工程学报, 2016, 38(3): 404-418. DOI: 10.11779/CJGE201603003
shu
JIANG Ji-an, CHEN Hai-ying, CHEN Yue, YE Jia-wen. Analytical solutions to drainage consolidation considering vacuum loss in prefabricated vertical drain[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(3): 404-418. DOI: 10.11779/CJGE201603003
Citation: JIANG Ji-an, CHEN Hai-ying, CHEN Yue, YE Jia-wen. Analytical solutions to drainage consolidation considering vacuum loss in prefabricated vertical drain[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(3): 404-418. DOI: 10.11779/CJGE201603003
shu

排水板真空度损耗的排水固结解析解  English Version

  • 1. 中交上海航道勘察设计研究院,上海 200120;
    2. 交通行业疏浚技术重点实验室,上海 200120

基金项目: 交通部重点平台项目(2011-329-752-190)
详细信息
    作者简介:

    蒋基安(1966- ),男,高级工程师,主要从事河口航道整治,港口工程,疏浚设备,围海造地,地基处置等工程设计,研究和实施.E-mail: jjiang163@163.com.

  • 中图分类号: TU447

Analytical solutions to drainage consolidation considering vacuum loss in prefabricated vertical drain

  • 1. Shanghai Waterway Engineering Design & Consulting Company, Shanghai 200120, China;
    2. MOT Key Laboratory of Dredging Tech, Shanghai 2000120, China

摘要

    摘要
  • 摘要: 无砂真空预压吹填软土在国内造地工程中广泛应用,但实践表明传统固结解析解已不足以预测其加固性状和加固效果.从固结方程出发,在原有的等应变假设基础上,在定解条件中增加了吹填土特有的高度欠固结特性和无砂真空预压特别明显的真空度损耗,重新推导得到径向和竖向完全协调的新的等应变解析解----JJJ解答,以解决无砂真空预压吹填软土的排水固结设计理论问题.JJJ法作为固结方程的原生解答,兼容以往所有该类解析解的同时,增加了针对高度欠固结土类和排水板真空度损耗严重的排水固结问题的解决能力.经现场和试验验证,JJJ解析解可相当精确预测无砂真空预压吹填软土的复杂固结过程和加固土体超孔压分布和孔压消散分布,该解答同时也适用于堆载和真空预压的工况.
    Abstract: The non-sand-cover (NS) vacuum preloading (VP) has been widely used in China. Based on the equal-strain assumption, a new set of analytical solutions to consolidation drainage under VP and NS-VP, called JJJ-solution, are developed from original equations by Terzaghi and Barron for vertical and radial drainage, by introducing the original definite conditions, that is, highly under-consolidated initial state of soil and severe vacuum loss along PVD drain boundary. The JJJ-solution is consistent with all the existing equal-strain solutions and verified through experiments. It is capable of accurately predicting the unusual dissipation and distribution of the excess pore-water pressure in consolidation under NS-VP on soft-muddy foundation. In addition, the JJJ-solution is suitable for simulating soil consolidation in general vacuum, surcharge and vacuum-surcharge preloading.
    • HTML全文
    • 参考文献(11)
  • [1] BARRON R A. Consolidation of fine-grained soils by drain wells[J]. Transactions of the American Society of Civil Engineers, 1948, 113(2346): 718-742.
    [2] HANSBO S. Consolidation of fine-grained soils by pre- fabricated drains[C]// Proceedings of the 10th International Conference on Soil Mechanics and Foundation Engineering. Stockholm, 1981: 667-62.
    [3] 谢康和, 曾国熙. 应变条件下砂井地基固结解析解[J].岩土工程学报, 1989, 3(2): 4-9. (XIE Kang-he, ZENG Guo-xi. Analytical solution to consolidation of equal-strain drain wells[J]. Chinese Journal of Geotechnical Engineering, 1989, 3(2): 4-9. (in Chinese))
    [4] 董志良. 堆载及真空预压砂井地基固结解析理论[J]. 水运工程, 1989, 3(2): 1-7. (DONG Zhi-liang. Analytical solution to consolidation of drain wells under pre-surcharge and vacuum-surcharge practice[J]. Port & Waterway Engineering, 1989, 3(2): 1-7. (in Chinese))
    [5] CARRILLO N. Simple two and three dimensional cases in the theory of consolidation of soils[J]. Math Phys, 1942, 21: 1-5.
    [6] 唐彤芝, 董江平, 黄家青, 等. 薄砂层长短板结合真空预压法处理吹填淤泥土试验研究[J]. 岩土工程学报, 2012, 34(5): 899-905. TANG Tong-zhi, DONG Jiang-ping, HUANG Jia-qing, et al. Experimental research on hydraulic filled mud consolidated by vacuum preloading method combining long and short boards with thin sand cushions[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(5): 899-905. (in Chinese))
    [7] 蒋基安. 真空预压作用下淤泥质吹填重塑土地基内负压传递规律研究[R]. 上海: 交通行业疏浚技术重点实验室, 2014: 17-67, 118-146. (JIANG Ji-an. Research on mechanism of vacuum preloading and propagation in newly-dredge-filled soft-muddy foundation[R]. Shanghai: MOT Key Laboratory of Dredging Tech, 2014: 17-67, 118-146. (in Chinese))
    [8] 沈珠江, 陆舜英. 软土地基真空排水预压的固结变形分析[J]. 岩土工程学报, 1986, 8(3): 7-15. (SHEN Zhu-jiang, LU Shun-ying. Analysis on consolidation and transform in soft foundation under vacuum preloading treatment[J]. Chinese Journal of Geotechnical Engineering, 1986, 8(3): 7-15 (in Chinese))
    [9] 彭 劼, 刘汉龙, 陈永辉, 等. 真空一堆载联合预压法软基加固对周围环境的影响[J]. 岩土工程学报, 2002, 24(5): 656-659. (PENG Jie, LIU Han-long, CHEN Yong-hui, et al. Effects of combined vacuum surcharge preloading to surrounding environment[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(5): 656-659. (in Chinese))
    [10] 张泽鹏, 李约俊, 冯淦清, 等. 塑料排水板在真空预压加固软基中的作用[J]. 广州大学学报(自然科学版), 2002(2): 68-71. (ZHANG Ze-peng, LI Yue-jun, FENG Gan-qing, et al. Influence by PVD on vacuum-surcharge preloading on soft foundation[J]. Journal of Guang Zhou University (Natural Science Edition), 2002(2): 68-71. (in Chinese))
    [11] INDRARATNA B. Analytical and numerical solutions forecasting vertical drain including the effects of vacuum Preloading[J]. Canadian Geotechnical Journal, 2005, 42(4): 994-1014.
    • 相关文章
    • 施引文献
    • 资源附件(0)
计量
  • 文章访问数:  478
  • HTML全文浏览量:  8
  • PDF下载量:  459
  • 被引次数: 0
出版历程
  • 收稿日期:  2014-09-25
  • 发布日期:  2016-03-24

目录

摘要
HTML全文
    参考文献(11)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回
    版权所有 © 2010水利部交通部国家能源局南京水利科学研究院 苏ICP备05007122号-11公安联网备案号：32010602011255
    编辑部地址：南京市虎踞关34号《岩土工程学报》编辑部邮编：210024电话：025-85829534，85829556E-mail: ge@nhri.cn