Circular Hollow Section-manufacture,factory,supplier from China

Background on Hollow AnchorsTo better understand the mechanics involved in load transfer between anchors and mine rock, the Bureau of Mines initiated a program to study the load transfer mechanics of passive, fully grouted hollow anchors. This work was accomplished in support of the Bureau's goal of improving the underground safety of the nation's miners. The first phase of the study was conducted in the laboratory to examine the linear, nonlinear, and time-dependent behavior of anchor rods under varying load conditions.

Ruiyu support takes you to understand the hollow anchor rods in the minesSince the introduction of hollow anchors 40 years ago, their use in mines has gradually increased for support and stabilization of underground mines with remarkable results. Hollow anchors have significantly reduced the number of roof falls and are now the primary support option required by most mine safety and health authorities.

Pipe seam anchors in the process of usePipe seam anchors may encounter the following common problems in the process of use:1. Sinking or loosening of pipe seam anchors: sinking or loosening of anchors may occur after the anchors are subjected to loads.

Difference between left-handed anchor and right-handed anchorCharacteristics of left-hand anchor:Left-hand threaded steel anchor without longitudinal rib resin anchor anchor high strength, reasonable structure, preload, can automatically adjust the direction of force, increase the binding force on the surrounding rock, can realize the mechanization of rapid installation of the left-hand anchor Advantages of left-hand anchors:High strength of the anchor, reasonable structure, preload, can automatically adjust the direction of force, increase the binding force on the surrounding rock, can realiz

Shandong anchor construction characteristics1. Shandong anchor positioning lineFirst according to the design drawings with a latitude and longitude meter measured and released the construction area of the anti-floating anchor hole position, with wooden stakes or steel bars for marking and numbering. Allowable deviation of anchor hole position is not more than 50mm.2. Rig in placeAfter measuring and releasing the anchor holes, the drilling rig can be put into position.

Shandong anchor construction operation points1. Shandong anchor positioning lineFirst according to the design drawings with a latitude and longitude meter measured and released the construction area of the anti-floating anchor hole position, with wooden stakes or steel bars for marking and numbering. Allowable deviation of anchor hole position is not more than 50mm.2. Rig in placeAfter measuring and releasing the anchor holes, the drilling rig can be put into position.

Ruiyu Company Organized the Seminar Activity of "Contributing to the Company in the Post and in the State"In order to guide the majority of employees to further unify their thinking, cohesion, based on their positions, unity and struggle, and enterprises to actively deal with the current severe situation December 24-26 in the company-wide organization in three batches of "in the post, in the position, in the state, I do for the enterprise to make a contribution to" theme of the seminar, the seminar activities are divided into three parts.

The anchoring force test method of left-handed longitudinal ribless anchorsLeft-handed anchor without longitudinal rib has high strength, reasonable structure, large pre-tensioning force, can automatically adjust the direction of force, increase the binding force on the surrounding rock, and can realize mechanized rapid installation.Advantages of left-handed anchor:High strength anchor, reasonable structure, large preload, can automatically adjust the direction of force, increase the binding force on the surrounding rock, can realize the mechanization of rapid installation.

Reliability of anchor support and adjustment of resistance in constructionAnchor support utilizes anchors, rods, buttresses and various components or spray layers to give the surrounding rock a certain support strength, forming a support system together with the surrounding rock, and with the deformation of the surrounding rock, the support force increases continuously.

Shandong anchor manufacturer produces anchor is a kind of anchor, active reinforcement of the surrounding rock of the new anchor. Before hitting the anchor, we Should knock on the gang to ask the top, the loose rock block block diao exhaust, deal with the dangerous rock. Check whether the width and height of the roadway meet the requirements, and the undigging roadway that does not meet the requirements should be reworked to meet the requirements before anchoring.