电阻率超前探测监测隧道冷冻法施工效果的可行性分析  

Feasibility of Monitoring Soil-Freezing Consolidation Using DC Resistivity Advanced Detection in Tunnel

作　　者：黄俊革[1] 

机构地区：[1]上海应用技术学院城市建设与安全工程学院,上海200235

出　　处：《上海应用技术学院学报（自然科学版）》2010年第1期1-4,共4页Journal of Shanghai Institute of Technology: Natural Science

基　　金：上海市教育委员会创新基金(08YZ168);上海应用技术学院科研启动基金(YJ2007-28)

摘　　要：采用有限单元法对隧道电阻率超前探测进行数值模拟,研究冷冻法施工前后,地下水变化导致的电阻率超前探测视电阻率改变。冷冻法未完成时,超前探测视电阻率为低阻异常;冷冻法完成后,超前探测视电阻率为高阻异常。结果表明,电阻率超前探测可以准确监测隧道冷冻法的施工效果。The numerical modeling of DC resistivity advanced detection in tunnel based on finite element method is done in this paper to study the feasibility of monitoring on soil-freezing consolidation.The change of apparent resistivity caused by the change of groundwater in soil-freezing consolidation is obvious.The anomalous of apparent resistivity in advanced detection is low-resistivity before the groundwater is full frozen.The anomalous of apparent resistivity in advanced detection is high-resistivity after the groundwater is full frozen.It shows that the effect of soil-freezing consolidation can be monitored by DC resistivity advanced detection in tunnel.

关 键 词：隧道 冷冻法 电阻率 监测 有限单元法 

分 类 号：P631.322[天文地球—地质矿产勘探]