Study on Protective Effect of Arched Double Row Piles on Existing Tunnel

徐长节; 曾晓鑫; 戚晓锴; 赵秀绍; 彭玲

doi:10.13409/j.cnki.jdpme.2018.04.006

您当前的位置：

首页 >

文章列表页 >

Study on Protective Effect of Arched Double Row Piles on Existing Tunnel

更新时间：2025-12-11

- Study on Protective Effect of Arched Double Row Piles on Existing Tunnel
- Vol. 38, Issue 4, Pages: 633-641(2018)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.2018.04.006
  CLC： U753;U457
- Published：2018
- 稿件说明：
移动端阅览
[1]徐长节,曾晓鑫,戚晓锴,赵秀绍,彭玲.拱形双排隔离桩对既有隧道的保护效果研究[J].防灾减灾工程学报,2018,38(04):633-641.

徐长节, 曾晓鑫, 戚晓锴, et al. Study on Protective Effect of Arched Double Row Piles on Existing Tunnel[J]. 2018, 38(4): 633-641.
[1]徐长节,曾晓鑫,戚晓锴,赵秀绍,彭玲.拱形双排隔离桩对既有隧道的保护效果研究[J].防灾减灾工程学报,2018,38(04):633-641. DOI： 10.13409/j.cnki.jdpme.2018.04.006.

徐长节, 曾晓鑫, 戚晓锴, et al. Study on Protective Effect of Arched Double Row Piles on Existing Tunnel[J]. 2018, 38(4): 633-641. DOI： 10.13409/j.cnki.jdpme.2018.04.006.

摘要

采用隔离桩来保护邻近基坑的既有隧道是工程中常用方法

目前隔离桩平面排列形式多采用传统的矩形行列式。以杭州市某房建地下室基坑工程为例

提出由直线形排桩和弧形排桩组成的拱形双排隔离桩及相应的优化方案

采用ABAQUS有限元软件建立三维模型

研究了隔离桩中心距、桩半径、平面位置以及弧形排桩曲率半径等因素对隔离效果的影响

并与实测结果进行对比。结果表明:隧道衬砌总位移存在最大值和最小值

隧道衬砌总位移最大值点位于拱底

最小值点位于拱顶

隧道衬砌整体呈现出沉降的趋势。减小隔离桩中心距或增大隔离桩半径均可减小隧道衬砌的位移

拱形双排隔离桩的保护效果优于传统形式;将拱形双排隔离桩设在距基坑10 m处

并将弧形排桩设在隧道一侧更合理;弧形排桩曲率半径对隧道保护效果存在合理值;采用优化方案时隧道位移比原方案减小45.7%

隧道更趋于安全。

Abstract

Isolated piles are often used to protect existing tunnels at the edge of foundation pits in engineering practices. Currently

traditional rectangular pile layouts are mostly adopted in the arrangement of isolated piles. For the excavation of a building basement in Hangzhou

the arch double row isolated pile

which is composed of straight row piles and curved row piles

and the corresponding optimization scheme were proposed. A three-dimensional model was established by using the finite element software ABAQUS

and the influence of center distance

pile radius

plane position

and radius curvature of pile on the isolation effect was studied

together with a comparison with measured results. The results show that there is a maximum and minimum value of the total displacement of tunnel lining; the maximum total displacement of tunnel lining is located at the arch bottom

the minimum value occurs at the arch top

and the lining of the tunnel shows a general trend of subsidence. A reduction of the center distance and an increase of the pile radius can reduce the tunnel displacement

and the isolation effect of double row piles is better than traditional ones. Moreover

a reasonable arrangement is that the arch double row isolation pile is located at about 10 m away from the foundation pit

and the curved row piles are deployed at one side of the tunnel; there is a critical value of the curvature radius of curved row pile for maximizing the protection effect on the tunnel. Finally

the tunnel displacement is reduced by45. 7% using the optimized scheme as compared to the original scheme

and hence the tunnel tends to be safer.

关键词

Keywords

references

弧形地连墙侧位移计算的新方法 [J]. 耿大新,余小强,童立红,王海龙. 岩土工程学报 . 2016(12)

大面积堆载作用下轴向受力隔离桩的承载机制分析 [J]. 竺明星,龚维明,徐国平,何小元. 岩石力学与工程学报 . 2014(02)

边载作用下隔离桩隔离效果的影响因素研究 [J]. 竺明星,王磊,龚维明. 岩土工程学报 . 2014(04)

减少软土深基坑周边环境初始位移的方法探讨 [J]. 罗成恒,魏建华. 岩土工程学报 . 2012(S1)

深基坑隔断墙保护邻近建筑物的效果与工程应用分析 [J]. 应宏伟,李涛,杨永文,谢新宇. 岩土工程学报 . 2011(07)

明珠线二期上海体育馆地铁车站穿越施工对地铁一号线车站的影响 [J]. 孔祥鹏,刘国彬,廖少明. 岩石力学与工程学报 . 2004(05)

拱形抗滑桩墙结构体系工作性能试验研究 [D]. 王辉. 长安大学 2011

拱形双排抗滑桩滑坡推力分配计算及其工程应用 [D]. 王在军. 中南大学 2013

长短桩组合围护结构工作机理研究 [D]. 成守泽. 浙江大学 2013

ABAQUS在岩土工程中的应用[M]. 中国水利水电出版社 , 费康, 2013

ABAQUS在隧道及地下工程中的应用[M]. 中国水利水电出版社 , 陈卫忠, 2013

ABAQUS在土木工程中的应用[M]. 浙江大学出版社 , 王金昌, 2006

Three-dimensional numerical parametric study of the influence of basement excavation on existing tunnel [J] . Jiangwei Shi,C.W.W. Ng,Yonghui Chen. Computers and Geotechnics . 2015

Numerical Simulation of Effect of Foundation Pit Excavation on Underlain Shield Tunnel [J] . Gang Wei,Ling Wei Hu,Kai Lei Chen. Applied Mechanics and Materials . 2014 (580)

Evaluation of deformation response for adjacent tunnels due to soil unloading in excavation engineering [J] . Zhiguo Zhang,Maosong Huang,Weidong Wang. Tunnelling and Underground Space Technology incor . 2013

Effect of large excavation on deformation of adjacent MRT tunnels [J] . J.S Sharma,A.M Hefny,J Zhao,C.W Chan. Tunnelling and Underground Space Technology incorporating Trenchless Technology Research . 2001 (2)

Response of a Taipei Rapid Transit System （TRTS） tunnel to adjacent excavation [J] . Chi-Te Chang,Chieh-Wen Sun,S.W Duann,Richard N Hwang. Tunnelling and Underground Space Technology incorporating Trenchless Technology Research . 2001 (3)

Tunnel complex unloaded by a deep excavation [J] . Computers and Geotechnics . 2001 (6)

Views

145

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effect Analysis of Isolation Piles outside Foundation Pit on Controlling Lateral Soil Displacement

Numerical Analysis of Subway Vibration Responses for Different Tunnel Types in Ground Fissure Areas

Deformation Monitoring and Inversion Analysis of Surrounding Rock Mechanics Parameters for Metro Construction with Mining Method in Dalian

Back-fill Pressure Model Research of Simultaneous Grouting for Shield Tunnel

The Dynamic Response Simulation Analysis of U-shaped Metro Tunnel Orthogonal with the Ground Fissure

Related Author

郑翔

叶俊能

龚迪快

成怡冲

杨龙伟

袁立群

门玉明

杨觅

Related Institution

No data

⁰