Metis - as the largest supplier of hollow anchor bar products in the world,it is becoming more and more popular with it's excellent products and professional online services.With so many years of exploration and development of the hollow anchor bar products,Metis is gaining more and more appraise and appreciation from our clients all over the world.
The hollow anchor bar ,which is one of the leading anchoring products of Metis,and has been extensively applied in the mine,tunnel,foundation support project,hydroelectric support project and slope stablization.
By the coverage of full length grout,the hollow anchor bar provides a strong strength between rod body and surrounding rocks,as a result allowing for direct monitoring of the rock mass movement,which gives a full guarantee to the safety and peace of mind to the workers in the constructions.
Metis hollow anchor bar is designed and fabricated to the international standards as set forth in the Post-Tensioning Institute’s Recommendations for Pre-stressed Rock and Soil Anchors. Bearing capacity is a function of the steel capacity as well as the geotechnical holding capacity.
Capacity of steel should be confined to 90% maximum test loading capacity and 60% lock-off load for permanent operation. Geotechnical capacity is a function of ground bond stress characteristics which can be moderated by necessary anchoring procedures.