[1]石名磊,邓学钧,刘松玉.土工合成材料用作PVDs在软基排水固结中的应用[J].东南大学学报(自然科学版),2001,31(5):43-47.[doi:10.3969/j.issn.1001-0505.2001.05.010]
 Shi Minglei,Deng Xuejun,Liu Songyu.New Geosynthetics Used as PVDs Applied in Soft Soils Improved by the Consolidation Method[J].Journal of Southeast University (Natural Science Edition),2001,31(5):43-47.[doi:10.3969/j.issn.1001-0505.2001.05.010]
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土工合成材料用作PVDs在软基排水固结中的应用()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
31
期数:
2001年第5期
页码:
43-47
栏目:
土木工程
出版日期:
2001-09-20

文章信息/Info

Title:
New Geosynthetics Used as PVDs Applied in Soft Soils Improved by the Consolidation Method
作者:
石名磊 邓学钧 刘松玉
东南大学交通学院,南京 210096
Author(s):
Shi Minglei Deng Xuejun Liu Songyu
Transportation College, Southeast University,Nanjing 210096, China)
关键词:
土工合成材料 预制排水井 固结 可靠性分析
Keywords:
geosynthetics prefabricated vertical drains consolidation reliability analysis
分类号:
TU472.34
DOI:
10.3969/j.issn.1001-0505.2001.05.010
摘要:
介绍了土工合成材料在软土地基排水加固工程中的应用,尤其是PVDs在液化地基处理和污染地基处置领域中尝试性的应用.根据单元井的固结理论,简要讨论了PVDs的井阻和涂抹作用,以及指标的测定.根据对工程实例的研究,进一步分析了PVDs的影响因素.结构可靠性设计的思想应用于饱和土的PVDs排水固结法设计是一个全新的概念.可靠性敏度分析的结果表明,PVDs软基固结仅对水平固结系数高度敏感,基于这一概念讨论了简化的可靠性设计方法.
Abstract:
The geosynthetics used in certain fields of vertical drain improvement techniques for soft clay deposits are presented, in particular dealing with the innovations in PVDs applied to reducing the possibility of liquefaction potential and stabilizing hazardous waste. The well resistance and the smear effect of PVDs, as well as the determination of the parameters are summarized based on the consolidation theories of unit-well. On the basis of research for case history, the factors impacted on PVDs are further analyzed. It is a pilot methodology to use the principle of structure reliability for design of PVDs in saturate soil consolidation. The conclusion of the sensitivity analysis shows that the average degree of consolidation is highly sensitive to the uncertain variability of the coefficient of horizontal consolidation. A concise approach of reliability design for PVDs used in expediting soil consolidation is discussed.

参考文献/References:

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[2] Gabr M A,Sabodish Mike,Williamson Alan,et al.BTEX extraction from clay soil using prefabricated vertical drains.Journal of Geotechnical and Geoenvironmental Engineering,1999,125(7):615~618
[3] 钱家欢,殷宗泽.土工计算原理.北京:水利水电出版社,1994.464~482
[4] Hansbo S.Consolidation of clay by bandshaped prefabricated drains.Ground Engrg,1979,12(5):16~25
[5] Hansbo S.Consolidation of fine-ground soil by prefabricated drains.In:International Society of Soil Mechanics and Foundation Engineering,ed.Proc 10th Int Conf on Soil Mech and Found Engineering.Balkema,Rotterdam,the Netherlands,1981.12~22
[6] Chai J C,Miura N.Investigation of factors affecting vertical drain behaviour.Journal of Geotechnical and Geoenvironmental Engineering,1999,125(3):216~226
[7] Chai J C,Miura N,Sakajo S.A theoretical study on smear effect around vertical drain.In:Internationa Society of Soil Mechanics and Foundation Engineering,ed.Proc 14th Int Conf Soil Mech and Found Engineering.Balkema,Rotterdam,the Netherlands,1997.1581~1584
[8] Zhou W,Hong H P,Shang J Q.Probabilistic design method of prefabricated vertical drains for soil improvement.Journal of Geotechnical and Geoenvironment Engineering,1999,125(8):659~664

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备注/Memo

备注/Memo:
作者简介:石名磊,男,1962年生,副教授.
更新日期/Last Update: 2001-09-20