土工基础

›› 2018, Vol. 32 ›› Issue (1): 84-87.

• 工程实录 • 上一篇    下一篇

大广高速紫荆山隧道岩溶水系勘测及涌水量预测

李方华   

  1. (中铁第四勘察设计院集团有限公司，武汉 430063)
  • 收稿日期:2017-10-02 修回日期:2017-11-13 出版日期:2018-02-20 发布日期:2018-03-01
  • 作者简介:李方华（1981-），男，高级工程师，主要研究方向为岩土工程设计与施工等。

Karst Terrain Investigation and Groundwater Inflow Prediction in Zijingshan Tunnel Excavation

LI Fanghua   

  1. (China Railway Siyuan Survey and Design Group Co. Ltd., Wuhan 430063)
  • Received:2017-10-02 Revised:2017-11-13 Online:2018-02-20 Published:2018-03-01

摘要： 以大广高速紫荆山隧道为例，综合采用钻探、遥感、大地音频电磁和浅层地震折射物探等技术勘测隧道基岩及其风化情况、断层破碎带的位置、隐伏岩溶及洞穴的空间分布和充填情况，分析隧址区岩溶发育特征及可能突涌水位置。在此基础上，采用多模型方法预测隧道正常与最大涌水量，并与现场实测值进行了对比，最大涌水量预测误差为19.4%，表明所采用的勘测手段及涌水量预测方法的有效性，可为类似岩溶隧道工程的突涌水灾害预防提供参考和指导。

关键词: 岩溶, 隧道, 勘测, 涌水量预测

Abstract: This paper presents the comprehensive investigation using conventional test borings, geophysical exploration results of the quality of the rock mass with various degrees of weathering, broken zones, potential karst cavity location & filling materials and groundwater inflow location and quantity predictions in the Zijingshan Tunnel in DaqingGuangzhou Expressway Project. The geophysical exploration method used in the investigations are: remote sensing, ground acoustic frequency electric magnetic waves as well as shallow seismic reflection wave methods. The maximum and normal amounts of groundwater inflow were predicted using different modelling methods. The monitoring results indicated that the different with the predicted way only 19.4%.   

Key words: karst terrain, tunnel, investigation, groundwater inflow prediction