›› 2003, Vol. 24 ›› Issue (4): 603-605.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Field test and analysis of vacuum pressure in vacuum drainage preloading

CEN Yang-run, YU Jian-lin, GONG Xiao-nan   

  1. Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2002-04-22 Online:2003-08-11 Published:2014-08-19

PDF (PC)

1522

Abstract: Based on the analysis of basic physical concept of vacuum, the up-to-date in-situ measurement techniques and applications were summarized for the vacuum drainage preloading in construction engineering. The laboratory tests and engineering practices demonstrated that the soft clay above groundwater level was still under saturation even with vacuum drainage preloading. Therefore, when vacuum data were measured above groundwater level, the reading of vacuum gauge reflected the water pressure in pore void space, whereas if vacuum pressure measurement was located under groundwater level, the reading of vacuum gauge was meaningless.

Key words: vacuum, vacuum pressure, negative pressure, vacuum drainage preloading, groundwater table

CLC Number: 

  • TU 41
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
[1] YANG Ai-wu, PAN Ya-xuan, CAO Yu, SHANG Ying-jie, WU Ke-long, . Laboratory experiment and numerical simulation of soft dredger fill with low vacuum pre-compression [J]. Rock and Soil Mechanics, 2019, 40(2): 539-548.
[2] LIU Xiao-ke, LU Qun, LU Shi-wei, LIU Chun-long, GUO Shao-long,. Vacuum penetration and ultimate pull-out capacity of low skirted suction caissons [J]. , 2018, 39(6): 2089-2098.
[3] CHAO Zhi-ming, WANG Huan-ling, XU Wei-ya, JIA Chao-jun, ZHAO Kai，. A rapid method for preparing rock samples with different water saturation levels [J]. , 2018, 39(3): 1109-1114.
[4] HUANG Chao-xuan, WANG Zheng-zhong, FANG Yong-lai,. Analytical solution of vacuum preloading foundation considering air leakage and nonlinear well resistance [J]. , 2017, 38(9): 2574-2582.
[5] LIU Yong, QI Lan, LI Shao-ming, GUO Hao-yang,. 3D Finite element analysis of vacuum preloading considering inconstant well resistance and smearing effects [J]. , 2017, 38(5): 1517-1523.
[6] WU Ya-jun, NIU Kun, TANG Hai-feng, HU Zhi-gang, LU Yi-tian，. Enhanced permeability of calcium lime in construction waste slurry improvement by vacuum preloading with flocculation [J]. , 2017, 38(12): 3453-3461.
[7] BAO Shu-feng, LOU Yan, DONG Zhi-liang, NIU Fei, XIE Rong-xing, . Development of a new apparatus for measurement of groundwater level under vacuum pre-loading [J]. , 2017, 38(10): 3067-3073.
[8] YE Guan-bao , ZHANG Qing-wen , ZHANG Zhen , . Consolidation analysis of concrete-cored sand-gravel piles improved composite foundation under combined vacuum and surcharge preloading [J]. , 2016, 37(12): 3356-3364.
[9] LIU Chun-yuan, ZHU Nan, ZHAO Xian-hui, WANG Wen-jing. Centrifugal test study of vacuum combined with surcharge preloading of lacustrine soft soil [J]. , 2015, 36(S1): 310-314.
[10] SHEN Yang , WANG Bao-guang , TAO Ming-an , WANG Xin , DU Wen-han，. Improvement of preparing technique for hollow cylinder specimen of remolded clay and its application [J]. , 2015, 36(S1): 697-701.
[11] HAO Ting, WANG Xi, ZHOU Yan, WU Yan. Effect of vacuum loading method on dehydration of dredged sludge in its dewatering process [J]. , 2015, 36(11): 3187-3192.
[12] BAO Shu-feng ，DONG Zhi-liang ，MO Hai-hong ，WU Dong-qing,. Laboratory tests on new reinforcement technology of newly hydraulic reclamation mud with high clay content [J]. , 2015, 36(1): 61-67.
[13] TU Hong-zhen ，XU Yan-hui ，XIE Li-quan，. Mechanism and numerical analysis of effect of air injection on vacuum preloading for weak foundation improvement [J]. , 2014, 35(S2): 600-606.
[14] JIA Xiang-xin , NIE Qing-ke , WANG Ying-hui , LIANG Shu-qi , . Analysis and numerical simulation of vacuum well point dewatering test [J]. , 2014, 35(S2): 607-612.
[15] LE Chao , XU Chao , WU Xue-feng , JIN Ya-wei，. Experimental research on clogging characteristic of two types of PVD filters [J]. , 2014, 35(9): 2529-2534.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LI Feng, WANG Xiao-rui, LUO Xiao-hui, GUO Yuan-cheng. Assessment methods of chance constrained on bottom stability of foundation pit[J]. , 2010, 31(12): 3867 -3874 .
[2] JIANG Ming-jing, XIAO Yu, CHEN Shuang-lin, HU Hai-jun, WU Xiao-feng. Discrete element analysis of bearing mechanism of single pile in sand under vertical load[J]. , 2010, 31(S2): 366 -372 .
[3] WANG Xiao-gang. Three-dimensional transient Lamb’s problem of transversely isotropic saturated soils[J]. , 2011, 32(1): 253 -260 .
[4] LEI Peng , SU Huai-zhi, ZHANG Gui-jin. Study of interval parameters back analysis of dam body and rock foundation based on RNN model[J]. , 2011, 32(2): 547 -552 .
[5] QIAN Yue-hong , LI Jie , CHEN Wen-tao , LI Wen-pei. Investigation of characteristics of failure nearby deep tunnel considering unloading time[J]. , 2011, 32(5): 1347 -1352 .
[6] HSIEH Chi-tai , KUO Chuh-chih , WANG Chein-lee , CHEN Yue-gau. A study of crack propagation measurement on sandstone with a single inclined flaw under uniaxial compression[J]. , 2011, 32(10): 2917 -2922 .
[7] CHEN Yi-jun , XUE Qiang , SUN Ke-ming , ZHAO Ying , WAN Yong . A mathematical model for rainfall erosion of steep soil slope and its solution[J]. , 2012, 33(5): 1579 -1584 .
[8] LIU Tao-ying ，CAO Ping ，ZHANG Li-feng ，ZHAO Yan-lin ，FAN Xiang . Study of fracture damage evolution mechanism of compression-shear rock cracks under high seepage pressure[J]. , 2012, 33(6): 1801 -1815 .
[9] SUN Shu-lin , TANG Jun , ZHENG Qing-hai , ZHANG Gan-yu , . Experimental study of expansive soil improved with granulated blast furnace slag (GBFS)[J]. , 2012, 33(7): 1940 .
[10] HOU Tian-shun. Influence law of characteristic water content on basic properties of light weight soil[J]. , 2012, 33(9): 2581 -2587 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd