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隧道建设和运营中发生的坍塌冒顶、突泥、涌水、开裂、侧移、山体滑坡等地质病害,严重影响到隧道建设质量和运营安全,造成巨大经济损失。地震CT和高密度电法作为隧道病害诊断的有效手段,可用于探测隧道工程与地质病害产生的原因和影响范围,以便提出有效、合理的治理措施。本文结合大风垭隧道地质病害诊断的实例,介绍了这些技术的观测方案、解释原理与诊断分析。
Collapse roofs, mudslides, gushing water, cracking, lateral displacement, landslides and other geological diseases occurred in the construction and operation of tunnels, seriously affecting the tunnel construction quality and operational safety, resulting in huge economic losses. Seismic CT and high-density electric method, as effective measures to diagnose tunnel diseases, can be used to detect the causes and influence ranges of tunnel engineering and geological diseases in order to put forward effective and reasonable control measures. In this paper, the case of geological disasters diagnosis of Dafaya Tunnel is introduced, and the observation scheme, explanation principle and diagnosis analysis of these technologies are introduced.