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隧道建设(中英文) ›› 2013, Vol. 33 ›› Issue (10): 883-889.DOI: 10.3973/j.issn.1672-741X.2013.10.014

• 施工技术 • 上一篇    下一篇

中梁山隧道涌水综合治理技术

章方政   

  1. (重庆市建设工程质量监督总站, 重庆 400015)
  • 收稿日期:2013-04-16 修回日期:2013-07-20 出版日期:2013-10-20 发布日期:2013-10-24
  • 作者简介:章方政(1958—),男,四川成都人,1982年毕业于成都科学技术大学水利工程建筑专业,本科,高级工程师,主要从事市政基础设施工程质量监督工作。

Comprehensive Treatment for Water Inflow in Construction of Zhongliangshan Tunnel

ZHANG Fangzheng   

  1. (Chongqing Construction Engineering Quality Control Station, Chongqing 400015, China)
  • Received:2013-04-16 Revised:2013-07-20 Online:2013-10-20 Published:2013-10-24

摘要:

针对中梁山隧道K27+227~+248区段侧壁围岩破碎出现较大涌水问题,通过水文地质分析,采用瞬变电磁和探地雷达相结合的物探方法,深入分析涌水区段的涌水水源及补给通道,提出深部引流、浅层加固和深部帷幕封堵的综合治理方法。针对不同治理阶段特点,选定合适的注浆材料,取得了较好的治理效果。通过围岩变形实时监测及数值模拟分析,确定了注浆工程中围岩变形规律及其主控因素,避免了水压升高和注浆压力对围岩造成破坏,保证了注浆过程中围岩具有良好的稳定性,并成功封堵了隧道涌水。

关键词: 中梁山, 隧道涌水, 瞬变电磁探测, 雷达探测, 引流泄压, 注浆封堵

Abstract:

The sources and supply passage of the water inflow in K27+227~+248 section of Zhongliangshan tunnel are analyzed on basis of hydrogeology analysis, transient electromagnetic detection and radar detection. Comprehensive treatment measures, including water releasing in deep layers, consolidation in shallow layers and deep watersealing curtains, are proposed. Proper grouting materials are selected according to the features of different grouting stages and good results are achieved. The rules and control factors of the deformation of the surrounding rock during grouting are determined by means of deformation monitoring and numerical simulation, so as to prevent the surrounding rock from being damaged by the increasing water pressure and grouting pressure. In the end, the stability of the surrounding rock during grouting is guaranteed and the water inflow is successfully sealed.

Key words: Zhongliangshan tunnel, water inflow, transient electromagnetic detection, radar detection, pressure relief by water releasing, water sealing by grouting