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城市轨道交通的建设是近年来城市建设的主要方向。基岩的突起面是轨道交通建设所要解决的重要问题。本文以厦门轨道交通工程为基础,应用高密度电阻率法对地铁地下区间基岩突起异常区域开展勘测工作,并对所采集的野外数据进行处理和反演获得测区二维电性结构图。依据测区内的二维电性结构特征和测区内的区域地质情况进行交叉分析,对测区内存在的基岩突起区进行综合解释,并推断出测区基岩突起的分布范围,取得了一定的勘察效果。通过钻探对比验证分析,其结果与钻探地质资料吻合度达81%,从而为工程设计提供了决策依据,也为推广应用高密度电法查明基岩突起地质现象提供了科学的依据。
The construction of urban rail transit is the main direction of urban construction in recent years. The protruding face of bedrock is an important issue to be solved in the construction of rail transit. In this paper, based on the Xiamen rail transit project, the high density resistivity method is used to carry out the surveying on the anomalous area of the bedrock anomaly in the underground section of the subway. The data collected in the field are processed and retrieved to obtain the two-dimensional electrical structural map of the survey area. Based on the two-dimensional electrical structural characteristics in the survey area and the regional geological conditions in the survey area, the cross-analysis is carried out to make a comprehensive interpretation of the basement projection areas existing in the survey area and deduce the distribution range of the bedrock protrusions in the survey area. A certain survey results. Through the comparison of drilling verification results, the results are consistent with the geological data of drilling 81%, which provides the decision-making basis for engineering design, and also provides a scientific basis for the popularization and application of high-density electrical method to detect the geological phenomenon of bedrock.