摘要
为了更精准地探测地下透水通道,以青龙溪水库除险加固工程为例,采用次声波检漏法和等值反磁通瞬变电磁法分别对风化的板岩地基进行探测,并在对应探测点上进行钻孔与注浆。根据相邻三孔平均注入浆量的数值,推断地下透水通道的位置,借以验证透水通道的准确性,进而定性评价两种探测方法在该类地层的适用性,可为类似工程在选择物探测试方法时提供参考。
Qinglongxi Reservoir Risk Removal Reinforcement Project is adopted as an example for more accurate detection of the underground pervious passage.Infrasonic leak detection method and equivalent antimagnetic flux transient electromagnetic method are adopted to detect the weathered stratum respectively and carry out drilling and grouting at the corresponding detection points.The position of underground pervious passage is inferred according to the value of average injected slurry amount in three neighboring holes,thereby verifying the accuracy of the pervious passage,qualitatively evaluating the applicability of two detection methods in the stratum,and providing reference for the selection of geophysical testing methods for similar projects in the future.
作者
宾斌
廖密生
刘坪
BIN Bin;LIAO Misheng;LIU Ping(Hunan Hongyu Engineering Group Co.,Ltd.,Changsha 410007,China)
出处
《水利建设与管理》
2020年第11期41-45,共5页
Water Conservancy Construction and Management
基金
湖南省水利科技资助项目(XSKJ2019081-54)。
关键词
水库
地基
探测
透水通道
注浆
reservoir
foundation
detection
pervious passage
grouting
