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真空预压法地下水位分析及其测试方法

高志义, 侯晋芳, 梁爱华

高志义, 侯晋芳, 梁爱华. 真空预压法地下水位分析及其测试方法[J]. 岩土工程学报, 2013, 35(zk2): 684-688.
引用本文: 高志义, 侯晋芳, 梁爱华. 真空预压法地下水位分析及其测试方法[J]. 岩土工程学报, 2013, 35(zk2): 684-688.
shu
GAO Zhi-yi, HOU Jin-fang, LIANG Ai-hua. Analysis and test method for groundwater level by vacuum preloading[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 684-688.
Citation: GAO Zhi-yi, HOU Jin-fang, LIANG Ai-hua. Analysis and test method for groundwater level by vacuum preloading[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 684-688.
shu

真空预压法地下水位分析及其测试方法  English Version

  • 1. 中交天津港湾工程研究院有限公司,天津 300222; 2. 港口岩土工程技术交通行业重点试验室,天津 300222; 3. 天津市港口岩土工程技术重点试验室,天津 300222

详细信息
    作者简介:

    高志义(1939- )，男，河南开封人，教授级高级工程师，主要从事土力学与地基基础方面的试验研究与设计工作。E-mail: ctjgzy@163.com。

  • 中图分类号: TU47

Analysis and test method for groundwater level by vacuum preloading

  • 1. CCCC Tianjin Port Engineering Institute Co., Ltd., Tianjin 300222, China; 2. Key Laboratory of Port Geotechnical Engineering of the Ministry of Communication, Tianjin 300222, China; 3. Key Laboratory of Port Geotechnical Engineering of Tianjin, Tianjin 300222, China

摘要

    摘要
  • 摘要: 建议以静水压力为零的线定义为地下水位线；分析了地下水位测试中的6个影响因素；提出了地下水位降低与升高的必要与充分条件；通过对真空预压机理与力系的分析,地下水位变化的必要与充分条件检验,膜下双管式测试仪现场实测地下水位结果,加固后土体仍为饱和土的事实和实测资料并无降水预压迹象,5个方面证明真空预压时地下水位是不变的；还提出一种棒式真空预压地下水位测试仪。它消除了膜下双管法局部真空度与实际不符及内管漏气对测试的影响。可真实地测出地下水位。
    Abstract: It is suggested that the zero hydrostatic pressure level (or plane) should be defined as the groundwater level (or plane). Six factors for the groundwater measurement are analyzed. At the same time, the necessary and sufficient conditions for the decrease and increase of groundwater level are also shown. By analyzing the vacuum preloading mechanism and system of forces, necessary and sufficient conditions for change of groundwater level and field test results of groundwater level, the fact of the soils that are still saturated after improvement, and field data indicate that there are no lowering of the groundwater and preloading. It is illuminated that the groundwater level does not owing to ground improvement by vacuum preloading. A new type of rod instrument is put forward to measure the groundwater level. It is a direct method to measure the groundwater level, which eliminates the effects of incorrect vacuum degree and internal tube leaking as measured by means of the double pipe method. So this new instrument is reliable to measure the groundwater level.
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    • 参考文献(10)
  • [1] 张功新, 董志良, 莫海鸿, 等. 真空预压中地下水位测试技术探讨与改进[J]. 岩土力学, 2007, 28(9): 1899-1903. (ZHANG Gong-xin, DONG Zhi-liang, MO Hai-hong, et al. Discussion and reform of groundwater level measuring technique in soft soil reinforced by vacuum preloading[J]. Rock and Soil Mechanics, 2007, 28(9): 1899-1903. (in Chinese))
    [2] 董志良. 堆载及真空预压法加固地基地下水位及测管水位高度的分析与计算[J]. 水运工程, 2001(8): 15-19. (DONG Zhi-liang. Analysis and calculation of the soil foundation's ground water level and measuring tube's water level under the situations of surcharge preloading and vacuum preloading[J]. Port & Waterway Engineering, 2001(8): 15-19. (in Chinese))
    [3] 周 琦, 刘汉龙, 顾长存. 真空预压条件下地下水位和出水量现场测试研究[J]. 岩土力学, 2009, 30(11): 3435-3440. (ZHOU Qi, LIU Han-long, GU Chang-cun. Field tests on groundwater level and yield of water under vacuum prelonding[J]. Rock and Soil Mechanics, 2009, 30(11): 3435-3440. (in Chinese))
    [4] 辜清华, 李志勇, 何良德. 真空预压中地下水位变化的理论探讨[J]. 石家庄铁道学院学报（自然科学版）, 2007, 20(3): 102-105. (GU Qing-jua, LI Zhi-yong, HE Liang-de. Theoretical discussion on groundwater level change in vacuum preloading[J]. Journal of Shijiazhuang Railway Institute (Natural Science), 2007, 20(3): 102-105. (in Chinese))
    [5] 胡 珩. 真空预压法加固机理和加固效果试验研究[D]. 南京: 河海大学, 2007. (HU Heng. Test research on consolidation mechanism and effect by vacuum preloading [D]. Nanjing: Hohai University, 2007. (in Chinese))
    [6] 陈晓丹, 赵维炳, 周志勇. 真空预压法加固软基的特性和机理探讨[J]. 路基工程, 2005(3): 1-4. (CHEN Xiao-dan, ZHAO Wei-bing, ZHOU Zhi-yong. Investigate into feature and mechanism of soft soil stabilization by vacuum preloading[J]. Subgrade Engineering, 2005(3): 1-4. (in Chinese))
    [7] 明经平, 赵维炳. 真空预压中地下水位变化的研究[J]. 水运工程, 2005(1): 1-6. (MING Jing-ping, ZHAO Wei-bing. Study on groundwater level in vacuum preloading [J]. Port & Waterway Engineering, 2005(1): 1-6. (in Chinese))
    [8] 张 敏, 李俊才, 王 文, 等. 测量真空预压地下水位变化新方法[J]. 施工技术, 2009, 38(6): 231-233. (ZHANG Min, LI Jun-cai, WANG Wen, et al. A new method to measure the change of groundwater level in vacuum preloading[J]. Construction Technology, 2009, 38(6): 231-233. (in Chinese))
    [9] 朱 燕, 余湘娟. 真空预压地下水位测试方法分析[J]. 水运工程, 2010(9): 113-116. (ZHU Yan, YU Xiang-juan. Measuring methods for groundwater level under vacuum preloading[J]. Port & Waterway Engineering, 2010(9): 113-116. (in Chinese))
    [10] 岑仰润, 俞建霖, 龚晓南. 真空排水预压工程中真空度的现场测试与分析[J]. 岩土力学, 2003, 24(4): 603-605. (CEN Yang-run, YU Jian-lin, GONG Xiao-nan. Field test and analysis of vacuum pressure in vacuum drainage preloading[J]. Rock and Soil Mechanics, 2003, 24(4): 603-605. (in Chinese))
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出版历程
  • 收稿日期:  2013-07-16
  • 发布日期:  2013-11-24

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