摘要
针对某市轨道交通地铁隧道工程水平钻孔注浆效果评价难的问题,运用浅层高频地质雷达探测技术,来判断富水区域及管线位置;利用深层高频地质雷达,来判断浆液是否达到设计扩散效果,进而判断水平钻孔注浆效果。检测结果发现,利用地质雷达波形图在注浆前后的振幅、同相轴等特征变化,可判断14 m深度范围内的水平定向注浆效果。
According to a difficult problem of an evaluation on grouting effect of a horizontal drilling hole in an urban rail transportation subway tunnel project,a high-frequency geological radar detection technology for the shallow stratum was applied to judge the watery area and the pipeline locations.The high-frequency geological radar for the deep depth stratum was applied to judge the grout reaching the designed diffusion effect or not and thus to judge the grouting effect of the horizontal drilling hole.The detection results showed that the amplitude,events and feature variation before and after the grouting in the waveform graph of the geological radar could be applied to judge the horizontal directional grouting effect within a scope of 14 m depth.
作者
马建民
许清明
杨雪
陈慧
高晓耕
MA Jianmin;XU Qingming;YANG Xue;CHEN Hui;GAO Xiaogeng(Shanghai Shentong Metro Group Corporation Limited,Shanghai 201103,China;Beijing China Coal Mine Engineering Company Limited,Beijing 100013,China;Tiandi Science and Technology Company Limited,Beijing 100013,China)
出处
《建井技术》
2021年第5期33-35,共3页
Mine Construction Technology
关键词
地质雷达
水平钻孔注浆
注浆效果
富水区域
geological radar
grouting of horizontal drilling hole
grouting effect
watery area
