Application of self drilling hollow bar support in coal mine

供应商: metiscn

供应产品


With the development of economy, the coal as main energy demand is becoming more and more huge, coal as the main production in the coal industry is also facing the deep development of the problem, with the increase of excavation depth, roadway supporting faces many difficulties, in order to improve the support strength, enhance security, we need to analyze the   application of self drilling hollow bar support in coal mine internal.
Self drilling hollow bar is a direct acting within the surrounding rock of roadway,it is different from the old ways such as wood beams , in other words, it is from the past passive support on the outside of the rock into the internal active support, so that we can reduce the deformation of roadway, improving the bearing capacity of self drilling hollow bar support.
At present,there are many coal mining in China has reached more than 1000 meters depth above, not only larger mining depth, but also the complicated geological structure, there exists the possibility of mine disaster,which brings very great difficulty in self drilling hollow bar coal mining support.
The Self drilling hollow bar is a reliable and convenient anchoring system which is applied in complicated geological conditions for rock support work. It is particularly applied in the following geological conditions, such as weathered rock, gravel layer, backfill, hard conglomerate, etc. The Self drilling hollow bar is widely used in tunneling, the full seam gateway of the mine.

http://tblo.tennis365.net/metiscn/2015/12/12/hollow-anchor-bolt-supporting-method-selection-in-the-loose-surrounding-rock/



在线询价

至: metiscn
Your E-mail:
消息正文:


Send to other suppliers

Other supplier products

Self drilling hollow anchor bolt is hot at Metis
Application of self drilling hollow bar support in coal mine
Metis is the best parter for quality anchor bolt system
Anchor bolt systems used in civil construction - You can turn to Metis
Continuous wave thread make it easier for self drilling bolt to be connected or cut
供应产品

Same products

卖方: Jiangsu Bailey Steel Bridge Co.,Ltd
卖方: Jiangsu Bailey Steel Bridge Co.,Ltd
卖方: Jiangsu Bailey Steel Bridge Co.,Ltd
卖方: Jiangsu Bailey Steel Bridge Co.,Ltd
卖方: Jiangsu Bailey Steel Bridge Co.,Ltd