Application of various investigation methods in geotechnical engineering investigation of goaf in complex mountain coal mine
To get a better investigation effect in the geotechnical engineering investigation in the complex mountainous area of coal mine goaf.In this paper,a variety of investigation methods were studied and analyzed in the investigation process for the application effect.The radon measurement method,high-density resistivity method,transient electromagnetic method and micro-motion detection were used to investigate the study area collectively.The survey results were obtained from the radon measurement method according to the stress changes around the goaf.The high-density resistivity method was specially designed for the environment with complex topography.The geoelectric characteristics of different depth positions in the study area can be investigated by the transient electromagnetic method,and the engineering investigation results can be obtained.The engineering structure surveying results can be obtained by the micro-motion detection surveying method.The survey results show that the areas with high radon gas value,high density resistivity and high transient electromagnetic resistance value are all goaf of coal mines in complex mountainous areas.Accurate survey results can be obtained from the micro-motion exploration with less error.The overall survey effect is good,and the goaf of coal mines can be explored.
万方数据
维普
