Application of self drilling hollow bar support in coal mine

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 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.

Other supplier products

	Metis：a bolt manufacturer with ability	Luoyang Metis is one the major of bolting in the Middle China, housed its manufacturing facility in the luoyang, driven from the experience of its...
	Metis is the world\'s leading manufacturer of high-strength anchor bolts	In terms of , Metis is the world's leading manufacturer of high-strength anchor bolts for the construction industry. A comprehensive and unique pro...
	Metis- catering to the hollow anchor bolt market	Catering to the market,Metis gained expertise and a positive reputation in the market as a dependable, quality supplier. Metis supplies hollow an...
	Metis self drilling hollow injection bolts are extensively used for construction	Metis products are extensively used for connection applications within the construction, engineering andmanufacturing industries. Our largest mark...
	The reliable bolt manufacturer for construction&infrastructure - Metis	Metis is reliable thefor construction&infrastructure.Metis provides integrated multi-product and service solutions in over 20 specialist sector...

Same products

	Juli's Rugged Automotive Racks	Seller: Shandong Juli Storage Equipment Co., Ltd.	Automotive bumper racksare generally welded from square tubes, angle steel, round tubes and other...
	O-Ring A suitable for SANY Dump Truck	Seller: DURATECH INDUSTRIAL GROUP LIMITED	ORTEC provide the SDLG Parts,LGMG Parts,Sany Parts,LiuGong Parts, and all China brands Constructi...
	Filter element 60345316 suitable for SANY SRT95C	Seller: DURATECH INDUSTRIAL GROUP LIMITED	Filter element60345316suitable forSANY Dump Truck Model: SRT95C DESCRIPTION Filter elemen...
	SANY parts Headlight Assembly A for SRT95C	Seller: DURATECH INDUSTRIAL GROUP LIMITED	Headlight AssemblyAsuitable forSANY Dump Truck Model: SRT95C DESCRIPTION Headlight Assemb...
	Nano Microcrystalline stone plate	Seller: Inner Mongolia Xinggu Technology Co., Ltd.	The Oriental Crystalline Silicon material is a new type of inorganic non-metallic basic silicon m...