[1]严东方,张荣堂.PCC桩在高等级公路拓宽工程中的应用[J].华侨大学学报(自然科学版),2007,28(4):426-429.[doi:10.3969/j.issn.1000-5013.2007.04.024]
　YAN Dong-fang,ZHANG Rong-tang.Application of PCC Pile in Widening Project of High-Grade Highway[J].Journal of Huaqiao University(Natural Science),2007,28(4):426-429.[doi:10.3969/j.issn.1000-5013.2007.04.024]
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PCC桩在高等级公路拓宽工程中的应用()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第28卷
期数:
2007年第4期
页码:
426-429
栏目:
出版日期:
2007-10-20

文章信息/Info

Title:
Application of PCC Pile in Widening Project of High-Grade Highway
文章编号:
1000-5013(2007)04-0426-04
作者:
严东方; 张荣堂
华侨大学土木工程学院; 华侨大学土木工程学院 福建泉州362021; 福建泉州362021
Author(s):
YAN Dong-fang;  ZHANG Rong-tang
College of Civil Engineering, Huaqiao University, Quanzhou 362021, China
关键词:
现浇薄壁管桩;  高等级公路;  复合地基;  沉降
Keywords:
cast-in-situ thin-wall concrete pipe pile;  high-grade highway;  composite foundation;  settlement
分类号:
U416.1
DOI:
10.3969/j.issn.1000-5013.2007.04.024
文献标志码:
A
摘要:
以南京市绕城公路拓宽工程软基加固为例,探讨现浇薄壁管(PCC)桩的应用,并对地基加固效果进行初步分析与评价.选取桩号为K4+120,K6+920,K6+986的3个典型的观测断面进行沉降、沉降速率、水平位移观测成果分析.结果表明,PCC桩复合地基可有效地控制加宽路基自身的沉降、与老路基间的差异沉降和路基的稳定性,可以满足施工控制标准,具有沉降收敛快,工后沉降小的特点,荷载-沉降曲线呈缓变形特点,与文献得到的结论一致.
Abstract:
Taking the ring highway widening project in Nanjing as example,the application of cast-in-situ thin-wall concrete pipe pile(PCC) to strengthen the soft foundation is discussed,the strengthening effect is analyzed and evaluated.The settlement,settlement rate and horizontal displacement of 3 typical sections with piles marked K4+120,K6+920 and K6+986 respectively are recorded and analyzed.It′s indicated: PCC pile composite foundation can effectively control the settlement at widening road,reduce the difference of settlements between widening road and origin road,and increase the embankment stability.PCC pile composite foundation meets the construction controlling standard,possesses the advantages: rapid settlement convergence,the small settlement after construction,slow deformation of the curve between load and settlement.These conclusions agree with the ones in references.

参考文献/References:

[1] 刘汉龙, 费康, 马晓辉. 振动沉模大直径现浇薄壁管桩技术及其应用(Ⅰ)--开发研制与设计 [J]. 岩土力学, 2003(2):164-168.doi:10.3969/j.issn.1000-7598.2003.02.004.
[2] 刘汉龙, 郝小员, 费康. 振动沉模大直径现浇薄壁管桩技术及其应用(Ⅱ)--工程应用与现场试验 [J]. 岩土力学, 2003(3):372-375.doi:10.3969/j.issn.1000-7598.2003.03.034.
[3] 刘汉龙, 陈永辉. 高速公路软土地基处理新技术 [A]. 北京:人民交通出版社, 2003.910-915.
[4] 龚晓南. 复合地基理论及工程应用 [M]. 北京:中国建筑工业出版社, 2002.156-157.
[5] 杨寿松, 刘汉龙, 周云东. 薄壁管桩在高速公路软基处理中的应用 [J]. 岩土工程学报, 2004(6):750-754.doi:10.3321/j.issn:1000-4548.2004.06.005.

更新日期/Last Update: 2014-03-23