[1]李宁,丁兆峰,李井元,等.与运营高速铁路并行长大深基坑工程设计[J].高速铁路技术,2018,9(06):56-59.[doi:10.12098/j.issn.1674-8247.2018.06.012]
　LI Ning,DING Zhaofeng,LI Jingyuan,et al.Design of Large Deep Foundation Pit in Parallel with Existing High-speed Railway[J].HIGH SPEED RAILWAY TECHNOLOGY,2018,9(06):56-59.[doi:10.12098/j.issn.1674-8247.2018.06.012]
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与运营高速铁路并行长大深基坑工程设计()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
9卷
期数:
2018年06期
页码:
56-59
栏目:
出版日期:
2018-11-15

文章信息/Info

Title:
Design of Large Deep Foundation Pit in Parallel with Existing High-speed Railway
文章编号:
1674—8247(2018)06—0056-04
作者:
李宁;  丁兆峰;  李井元;  吴沛沛
中铁二院工程集团有限责任公司, 成都 610031
Author(s):
LI Ning;  DING Zhaofeng;  LI Jingyuan;  WU Peipei
China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China
关键词:
高速铁路|长大深基坑|咬合桩|单侧降水
Keywords:
high-speed railway|large deep foundation pit|secant pile|unilateral dewatering
分类号:
TU463
DOI:
10.12098/j.issn.1674-8247.2018.06.012
文献标志码:
A
摘要:
文章针对并行既有高速铁路长大深基坑的支护、降水问题，以红光大道犀浦双铁站前下穿隧道深基坑工程为例，研究了基坑施工过程中基坑自身变形及对邻近高速铁路桥墩变形的影响。为降低基坑工程降水及开挖施工对既有线的扰动，提出了卵石土富水地层中采用单侧咬合桩加钢管内支撑的基坑支护，基坑外采用单侧降水的工程措施方案。该方案在施工过程中有效地控制了基坑开挖对高速铁路桥墩的影响，确保了高速铁路运营安全，可供类似工程参考。
Abstract:
Aiming at the supporting and dewatering problems of large deep foundation pit in parallel with existing high-speed railway, this paper, taking the deep foundation pit engineering of underpass tunnel in front of shared Xipu Station by metro and high-speed on Hongguang Avenue as an example, studies the deformation of the foundation pit and its influence on the deformation of the piers of adjacent high speed railway during the construction of foundation pit. In order to reduce the disturbance of dewatering in foundation pit engineering and excavation construction to existing line, it is proposed that the unilateral secant pile with steel pipe internal support is adopted in water-rich gravel soil stratum and the unilateral dewatering outside foundation pit. The scheme effectively controls the influence of foundation pit excavation on High-speed railway piers in the construction process and ensures the operation safety of high-speed railway, which can be used as a reference for similar projects.

备注/Memo

备注/Memo:
作者简介：李宁（1984-），男，高级工程师。引文格式:李宁, 丁兆峰, 李井元, 等. 与运营高铁并行长大深基坑工程设计[J]. 高速铁路技术,2018,9(6):56-59.LI Ning, DING Zhaofeng, LI Jingyuan, et al. Design of Large Deep Foundation Pit in Parallel with Existing High-Speed Railway[J]. High Speed Railway Technology, 2018, 9(6):56-59.
更新日期/Last Update: 2018-12-28