摘要
随着我国交通基础设施建设的快速发展,隧道工程也在快速的增加,隧道施工过程中面临着很多风险,尤其是地下水造成的突水涌泥事件,其涌水具有突然性强和危害性大的特点,给隧道施工带来了极大风险。综合地球物理测井可以获取岩层的诸如导电特性、声学特性、放射性、电化学特性等地球物理参数。现阶段铁路隧道勘察中,含水层的划分主要还是依赖视电阻率跟自然电位测井参数,本文通过对井温、井液电阻率、视电阻率、自然电位、声波速度、自然伽马等地球物理测井参数的综合分析准确地划分含水层,可以指导隧道设计与施工,减少施工过程中突泥涌水的风险。最后,通过实测数据证明,本文中的综合分析方法是有效的。
With the rapid development of traffic infrastructure construction in our country,tunnel engineering is increasing rapidly,where many risks may occur during the tunnel construction,especially the sudden inflow of water and mud surge caused by underground water.The sudden inflow of water brings great risk to tunnel construction.Geophysical parameters such as electrical conductivity,acoustic properties,radioactivity and electrochemical properties can be obtained by comprehensive geophysical logging.At this stage of railway tunnel investigation,the division of aquifer mainly depends on apparent resistivity and spontaneous potential logging parameters.In this paper,through comprehensive analysis of geophysical logging such as well temperature,well fluid resistivity,apparent resistivity,spontaneous-potential,acoustic velocity and natural gamma ray,the aquifer can be accurately divided,which can guide tunnel design and construction and reduce the risk of mud inrush and water gushing during construction.Finally,the measured data prove that the comprehensive analysis method in this paper is effective.
作者
张福彬
Zhang Fubin(China Railway Design Corporation,Tianjin 300308,China)
出处
《工程地球物理学报》
2021年第5期687-693,共7页
Chinese Journal of Engineering Geophysics
基金
中国国家铁路集团有限公司资助项目(编号:K2019G031)
中国铁路设计集团有限公司资助项目(编号:2019YY120101)。
关键词
地球物理测井
裂隙水
断层水
geophysical logging
fissure water
fault water
