Abstract:
Using the Meilingguan gas tunnel as an example, this paper discusses the construction technique of advance drilling in geology containing natural gas. Regarding the advance drilling design for the gas tunnel in non-coal strata and the construction specifications and guidelines for existing railway tunnels, as well as the technical requirements for boring detection in coal mines, it introduces the selection and application of drilling equipment, construction technologies, and safety measures: these are key to gas tunnel construction in terms of rapidly exploring the geological structure and developing gas conditions in front of the work face.
.Construction Techniques for Advance Drilling in the Meilingguan Gas Tunnel on the Lanzhou-Chongqing Railway[J] MODERN TUNNELLING TECHNOLOGY, 2012,V49(4): 89-93