Detection while drilling (DWD) apparatus and method for lithological composition of roadway roof

摘要

#$%^&*AU2017311614B220190418.pdf#####Abstract The present invention discloses detection while drilling (DWD) apparatus and method for lithological composition of roadway roof, which are applicable to the technical field of 5 roadway supporting in mines. The apparatus and method provided in the present invention utilize a special rock debris collector to collect the rock debris produced while drilling in the roof drilling process with the jumbolter, an entire process, including rock debris introduction, filtering, deposition, and drying, is accomplished at the roadway tunneling working face, and the lithological composition of the roadway roof within a 10 certain range is measured in real time with an enhanced handheld ore analyzer. The apparatus and method provided in the present invention are easy to use, can be used in tests conveniently, realize roadway roof lithology detection and analysis while drilling in an anchor rod supporting process, are especially applicable to mines with complex and variable lithological conditions, solve a major problem of quantitative description of 15 lithological composition of roof, and can provide a scientific basis for design and adjustment of roadway roof supporting modes and supporting parameters. 12