拉日铁路吉沃希嘎隧道地热异常特征与防治措施分析

发布时间：2018-06-04 01:46

  本文选题：铁路隧道 + 高原地热隧道　； 参考：《铁道标准设计》2014年07期

【摘要】：地热是拉日铁路吉沃希嘎隧道施工中的主要工程地质问题,查明隧址区地热分布特征,并且制定高温热害防治措施非常重要。勘察中结合物探异常数据,布置钻孔实测地温,绘制测温曲线,揭示了隧址区地热分布规律;通过钻孔测温数据和地温梯度值对隧道地热异常区地温分级和预测。同时在分析区域地热地质背景的基础上,较为详细地评价了地热成因及高温热害对隧道建设的影响,并给出了相应的防治措施。
[Abstract]:Geothermal is the main engineering geological problem in the construction of Jivoxiga Tunnel in La-Japan Railway. It is very important to find out the characteristics of geothermal distribution in the tunnel area and to formulate the prevention and control measures of high temperature heat damage. Combined with the geophysical anomaly data, the paper arranges the measured ground temperature of the borehole, draws the temperature measurement curve, and reveals the geothermal distribution law of the tunnel site, and classifies and predicts the geothermal temperature of the anomalous area of the tunnel through the borehole temperature measurement data and the geothermal gradient value. On the basis of analyzing the geological background of regional geothermal, the paper evaluates the causes of geothermal and the influence of high temperature heat damage on tunnel construction in detail, and puts forward the corresponding prevention measures.
【作者单位】： 中铁第一勘察设计院集团有限公司;
【分类号】：U452.11;U455
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本文编号：1975275