| 摘要 |
<p>The present invention relates to a lubricant injection method of a semi-shield machine and a lubricant injection apparatus used thereby and, more specifically, to a lubricant injection method which is provided to reduce frictional resistance between a propulsion pipe and an excavation surface by supplying lubricant and water to a gap between the propulsion pipe and the excavation surface, when a semi-shield machine performs excavation operation; and to a semi-lubricant injection apparatus used thereby, wherein the lubricant injection apparatus can secure the propulsion speed of the semi-shield machine and the propulsion pipe by having an improved structure facilitating the injection of lubricant and water to minimize frictional resistance between the propulsion pipe and the excavation surface; maintain the propulsive direction of the semi-shield machine to be on the right track, when the semi-shield machine is propelled; and allow the semi-shield machine to smoothly excavate the ground having a permeable layer and a rock block formed therein as well as the hardened ground. The lubricant minimizing frictional resistance between the propulsion pipe and the ground is discharged from the rear side of the propulsion pipe through a gap between the propulsion pipe and the ground to the front side where a cutter head is installed. The lubricant injection device is installed to inject the lubricant into gaps between propulsion pipes and the ground, wherein the propulsion pipes are connected between the semi-shield machine and a propulsion device; and comprise a lubricant injection pipe which has the lubricant injected therein and is installed on the outside of a packing member installed in a work inlet and the propulsion pipe to maintain the sealing of the gaps between the propulsion pipes and the ground.</p> |
