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针对铁路隧道前期勘探的重要性,介绍了综合地球物理测井技术,结合该技术在牡绥线(牡丹江至绥芬河段)铁路扩能改造工程的铁路隧道勘查中工程实例,阐述了综合地球物理测井技术在铁路隧道钻孔中的勘查效果,该方法对确定孔内岩层结构、破碎程度,划分含水层并确定其补给关系等方面具有效率高、成果精细化的优点,并能在隧道整体的角度对地质层序进行对比。弥补了钻探取芯率不高,地质描述不细的缺点,保证了井下资料的完整性。
In view of the importance of early exploration of railway tunnels, this paper introduces the integrated geophysical logging technology and the engineering example of railway tunnel exploration in the Mu-Li-Su line (Mudanjiang-Suifenhe) expansion project. The comprehensive geophysical survey This method has the advantages of high efficiency and refined results in determining the rock formation structure, the degree of crushing, dividing the aquifer and determining the supply relationship among the holes in the tunnel, Contrast the geological sequence. Make up for the drilling coring rate is not high, the shortcomings of the geological description is not fine, to ensure the integrity of the underground information.