土工基础

›› 2013, Vol. 27 ›› Issue (1): 8-10.

• 工程实录 • 上一篇    下一篇

深大型基坑降水引起地铁隧道沉降的控制措施分析

刘运生   

  1. (铁道第三勘察设计院集团有限公司，天津 300251)
  • 收稿日期:2012-07-02 出版日期:2013-02-28 发布日期:2013-03-05
  • 作者简介:刘运生（1980-），男，工程师,工学硕士,研究方向为隧道与地下工程的结构设计与研究。

Impact of the Deep Excavation Dewatering on the Settlement of a Subway Tunnel

LIU Yunsheng   

  1. (The Third Railway Survey and Design Institute Group Corporation, Tianjin 300251)
  • Received:2012-07-02 Online:2013-02-28 Published:2013-03-05

摘要： 结合天津西站交通枢纽基坑工程，通过数值分析研究了基坑降水引起既有地铁结构沉降的控制措施，确定了经济、安全、可靠的沉降控制优化方案，研究结果可为紧邻既有地铁结构的深大型基坑降水提供理论依据和参考。

关键词: 深大型基坑, 降水, 地铁结构, 沉降, 控制措施

Abstract: Additional settlement will occur at the adjacent area due to the consolidation effect of the soil mass when a deep excavation site is dewatering. This paper presents a case history of a deep excavation in Tianjin West Subway Station Transportation Hub project. The measures of minimizing the dewatering at the deep excavation on the additional settlement on the existing subway and adjacent structures are discussed. The most economical and safe procedures were developed and optimized.

Key words: Large Deep Excavations, Dewatering, Existing Subway Structures, Additional Settlement, Settlement Control Measures