Jamming Prevention Technology of Concrete Transportation Pipeline in Mine Shaft
XIE Zhi-ming
Abstract：A cast-in-place concrete support technology was applied to the mine shaft and the concrete was transported from the surface ground to the working face in the underneath of the mine shaft with the transportation pipeline for the mine shaft lining. A diameter of 159 ~ 219 mm seamless steel pipe would be generally applied for the transportation pipeline .During the cast-in-place concrete process , once a jamming occurred in the transportation pipeline ,the operation personnel would be hard to find the jamming and the jamming could cause important safety hidden peril to the mine shaft construction . In order to ensure the safety ,at the location with a distance of 20 ~ 25 m up to the transportation pipe‐line feeder ,a jamming alarm should be set up .Once a jamming occurred in the transportation pipeline , the jamming could be timely found and timely treated.
Keywords：mine shaftmine shaft liningconcrete transportation pipelinejamming prevention techno-logy
Publication Date：2015-02-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 22-24 )