土工基础

›› 2014, Vol. 28 ›› Issue (6): 32-35.

• 工程实录 • 上一篇    下一篇

浅埋暗挖地铁隧道下穿建筑物施工工法研究

唐洪涛   

  1. （中诚国际海洋工程勘察设计有限公司，山东青岛 26600）
  • 收稿日期:2014-06-23 出版日期:2014-12-25 发布日期:2015-01-12
  • 作者简介:唐洪涛(1981-)，男,工程师,研究方向为道路与桥梁设计与施工。

Construction Techniques of a Shallow Buried Metro Tunnel underPassing the Existing Buildings

TANG Hongtao   

  1. (China Integrity International Oceaneering, Ltd., Qingdao, 266000)
  • Received:2014-06-23 Online:2014-12-25 Published:2015-01-12

摘要： 在浅埋暗挖隧道施工中，以超前地质预报和钻探为基础，洞内超前深孔注浆、地面袖阀管注浆加固为核心，严格控制开挖进尺与爆破振速，施工中对地表沉降、建筑物沉降、拱顶沉降、净空收敛等项目持续监测，各监测项目变形均在允许的范围之内，施工技术可为类似工程的施工提供参考。

关键词: 地质预报, 超前注浆, 爆破, 监测

Abstract: This paper presents a case history of the excavation techniques of a shallow buried metro tunnel under passing the existing building. Based on the geological condition prediction and the test boring information, the tunnel excavation utilizes the deep hole grouting at the excavated face and sleevevalvepipe grouting at the ground surface. Both the excavated dimension and the vibration peak particle velocity from the blasting are strictly controlled. In addition, the deformations at different locations, such as, ground surface, crest of the excavated tunnel, as well as the net clearance within the tunnel, are monitored during the excavation. The results indicate that the deformations are well under the permissible values.

Key words: Geological Predictions, Advanced Grouting, Blasting, Monitoring