[1]周琦,刘汉龙,顾长存.真空预压条件下地下水位下降的影响分析[J].深圳大学学报理工版,2012,29(No.6(471-580)):553-558.[doi:10.3724/SP.J.1249.2012.06553]
 ZHOU Qi,LIU Han-long,and GU Chang-cun.Impact analysis of groundwater level lowering under vacuum preloading[J].Journal of Shenzhen University Science and Engineering,2012,29(No.6(471-580)):553-558.[doi:10.3724/SP.J.1249.2012.06553]
点击复制

真空预压条件下地下水位下降的影响分析()
分享到:

《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第29卷
期数:
2012年No.6(471-580)
页码:
553-558
栏目:
土木建筑工程
出版日期:
2012-11-30

文章信息/Info

Title:
Impact analysis of groundwater level lowering under vacuum preloading
文章编号:
20120615
作者:
周琦12刘汉龙2顾长存2
1) 中交四航工程研究院有限公司,广州 ?510230
2) 河海大学岩土工程科学研究所,南京 210098
Author(s):
ZHOU Qi12 LIU Han-long2and GU Chang-cun2
1) CCCC Fourth Harbor Engineering Institute Co., Ltd., Guangzhou 510230, P.R.China
2) Geotechnical Research Institute, Hohai University, Nanjing 21098, P.R.China
关键词:
地基加固工程真空预压地下水位出水量表面沉降膜下真空度孔隙水压力
Keywords:
foundation reinforcement engineering vacuum preloading groundwater level yield of water surface settlement degree of vacuum pore water pressure
分类号:
TU 443
DOI:
10.3724/SP.J.1249.2012.06553
文献标志码:
A
摘要:
对南京滨江大道真空预压地基处理现场多项实测结果进行分析对比,探讨地下水位、出水量、表面沉降、膜下真空度和孔隙水压力间的内在联系,阐述地下水位下降机理.研究表明,膜下真空度是影响地下水位变化的重要因素,真空预压初期下水位下降较快,流体运动为气水两相非稳定渗流,随后下降速度变缓,逐渐趋于稳定渗流状态,在加固区及周边范围内形成降水漏斗.真空预压出水量和表面沉降表现出类似的规律,三者间存在较好的函数拟合关系.
Abstract:
Based on field-testing results under vacuum preloading, the relations between groundwater level and outflow, surface settlement, degree of vacuum, and pore water pressure are analyzed. The mechanism of groundwater level lowering is presented. The groundwater level lowers rapidly at the beginning of vacuum preloading, which is a two-phase transient flow, and then it becomes relatively stable and can be treated as a steady state of flow. With the groundwater level lowering, a depression-cone is formed in the reinforced area. The degree of vacuum is an important factor for groundwater level lowering. The varying processes of outflow and surface settlement are similar to the one of groundwater level, and there are good fitting relations between these factors.

参考文献/References:

[1] ?LOU Yan. Soft Soil Reinforced by Vacuum Method of Preloaing[M]. Beijing: China Communication Press, 2002:1-2, 67-68.(in Chinese)
娄炎. 真空排水预压法加固软土技术[M]. 北京: 人民交通出版社, 2002:1-2,67-68.
[2] Kjellman W. Consolidation of clay by means of atmosphere pressure[C]// Proceedings of a conference on soil stabilization. Boston(USA): MIT Press, 1952: 258-263.
[3] ?MING Jing-ping, ZHAO Wei-bing. Study on groundwater level in vacuum preloading[J]. Port & Water Engineering, 2005(1): 1-6.(in Chinese)
明经平, 赵维炳. 真空预压地下水位变化的研究[J]. 水运工程, 2005(1): 1-6.
[4] CHEN Xiao-dan, ZHAO Wei-bing, ZHOU Zhi-yong. Mechanism of vacuum preloading[J].Subgrade Engineering, 2005(3): 1-4.(in Chinese)
陈小丹, 赵维炳, 周智勇. 真空预压加固软基的特性和机理探讨[J]. 路基工程, 2005(3): 1-4.
[5] ?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 Mechanics, 2007, 28(9): 1899-1903.(in Chinese)
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.
[6] LI Ning, ZHENG Shi-hua, LI Xiang-feng. On groundwater level changes by vacuum preloading interior test[J]. Port & Water Engineering, 2011(6): 148-151.(in Chinese)
李宁, 郑世华, 李向凤. 真空预压法地下水位变化室内试验研究[J]. 水运工程, 2011(6): 148-151.
[7] CEN Yang-run. Vacuum Preloading: Experiment and Theory[D]. Hangzhou: Zhejiang University, 2003: 40-43.(in Chinese)
岑仰润. 真空预压加固地基的试验及理论研究[D]. 杭州: 浙江大学, 2003: 40-43.
[8] ?ZHU Jian-cai, LI Wen-bing, GONG Xiao-nan. Monitoring of groundwater level under vacuum combined with surcharge preloading[J]. Geotechnical Investigation & Surveying, 2004(5): 27-30.(in Chinese)
朱建才, 李文兵, 龚晓南. 真空联合堆载预压加固软基中的地下水位监测成果分析[J]. 工程勘察, 2004(5): 27-30.
[9] JIN Xiao-rong, YU Jian-lin, GONG Xiao-nan, et al. Field tests on soft soil with confined underground water by vacuum-surcharge preloading[J]. Geotechnical Engineering, 2007, 29(5): 789-794.(in Chinese)
金小荣, 俞建霖, 龚晓南,等. 含承压水软基真空联合堆载预压试验研究[J]. 岩土工程学报, 2007, 29(5): 789-794.
[10] GU Chang-cun, WANG Gui-zhen, LIU Han-long, et al. An apparatus and method for measuring the groundwater level under vacuum preloading: China, 200610085337.2[P].2006-11-15.(in Chinese)
顾长存, 王桂珍, 刘汉龙, 等. 一种真空预压地基加固区内水位测量装置与方法: 中国, 200610085337.2[P]. 2006-11-15.
[11] ZHOU Qi, LIU Han-long , GU Chang-cun. Field tests on groundwater level and yield of water under vacuum preloading [J]. Rock and Mechanics, 2009(11): 3435-3440.(in Chinese)
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(11): 3435-3440.
[12] LIU Han-long, ZHOU Qi, GU Chang-cun. New method for measuring groundwater under vacuum preloading[J]. Geotechnical Engineering, 2009(1): 48-51.(in Chinese)
刘汉龙, 周琦, 顾长存. 真空预压条件下地下水位测试新方法及其应用[J]. 岩土工程学报, 2009(1): 48-51.
[13] GONG Xiao-nan, CEN Yang-run. Mechanism of vacuum preloading[J]. Journal of Harbin University of Civil Engineering and Architecture, 2002,35(2): 7-10.(in Chinese)
龚晓南, 岑仰润. 真空预压加固软土地基机理探讨[J]. 哈尔滨建筑大学学报,2002,35(2): 7-10.
[14] PENG Jie. Study on Improvement Mechanism and Computation Theory of Vacuum Combined Surcharge Preloading[D]. Nanjing: Hohai University, 2003:34-45.(in Chinese)
彭劼. 真空-堆载联合预压法加固机理与计算理论论研究[D]. 南京: 河海大学, 2003:34-45.
[15] ZHU Jian-cai. Mechanism and Technology of Vacuum Combined with Surcharge Preloading[D]. Hangzhou: Zhejiang University, 2004:26-27.(in Chinese)
朱建才. 真空联合堆载预压加固软基机理及工艺研究[D]. 杭州: 浙江大学, 2004:26-27.
[16] ZHANG Zai-ming. Groundwater and Foundation[M]. Beijing: China Architecture & Building Press, 2001:1-14.(in Chinese)
张在明. 地下水与建筑基础[M]. 北京: 中国建筑工业出版社, 2001:1-14.
[17] XUE Yu-qun. Groundwater Dynamics[M]. Beijing: Geological Publishing House, 1997: 5-8.(in Chinese)
薛禹群. 地下水动力学[M]. 北京: 地质出版社, 1997:5-8.

备注/Memo

备注/Memo:
Received:2011-01-09;Revised:2012-05-09;Accepted:2012-08-20
Foundation:National Natural Science Foundation of China(50379010)
Corresponding author:Dr. ZHOU Qi. E-mail: nickvictory@163.com
Citation:ZHOU Qi, LIU Han-long, GU Chang-cun. Impact analysis of groundwater level lowering under vacuum preloading[J]. Journal of Shenzhen University Science and Engineering, 2012, 29(6): 553-558.(in Chinese)
基金项目:国家自然科学基金资助项目(50379010)
作者简介:周琦(1979-),男(汉族),天津市人,河海大学高级工程师、博士. E-mail: nickvictory@163.com
引文:周琦,刘汉龙,顾长存. 真空预压条件下地下水位下降的影响分析[J]. 深圳大学学报理工版,2012,29(6):553-558.
更新日期/Last Update: 2012-11-30