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What is the anchor beam system of anchor rods?At present, in the production mines of various companies in China, some of the mining depth has reached more than 500-1000 meters, and the ground stress, surrounding rock force and deformation are complicated and diverse, a single anchor support can no longer meet the requirements of support for the broken roof plate, composite roof plate, and the roadway with high roof plate pressure, and the anchor beam system, which is composed of the anchor rods and the W-beam steel belt, can effectively control the roof plate, and it can be used in the support

Principle analysis of the collapse reduction effect of left-handed anchorsIf the unstable rock layer of the vault is regarded as the combined beam (plate) supported by the side wall, because the anchor hanging on the stable surrounding rock can be regarded as the fulcrum, the installation of left-handed anchor without longitudinal ribs is equivalent to adding the fulcrum, reducing the support span, and then reducing the bending stress and deflection of the support to maintain the stability of the support and the rock, so that the rock is not easy to deform and damage.

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.

2024 Coal Industry Benchmarking Work Conference Held in JiningThe 2024 Coal Industry Benchmarking Work Conference was held in Jining City, Shandong Province, which was organized by China Coal Industry Association, co-organized by Shandong Coal Industry Association, and undertaken by Jining Energy Bureau and Jining Energy Development Group.

Comparison of left-handed anchors with other anchorsLeft-handed anchor is a kind of engineering structure used to support tunnels and rock bodies. Left-handed anchors are easy to make and transport, simple to construct, and can greatly improve the quality and safety of the project. This technology has been widely used in tunnel construction and coal mine support and other fields.Second, the structure of left-handed anchorLeft-hand anchor consists of steel bar, bundle rib and self-locking nut.

Alloy Steel Industry Market Analysis to 2025China's alloy steel steel production overall shows a steady rise, which is mainly due to the rapid development of China's automobile and other fields. Data shows that China's alloy steel steel production in 2019 was 47.0243 million tons, and by 2023 it will be close to 61 million tons.

Borehole diameter of anchor rods is related to soil conditionsWhat is the typical drilling diameter of anchor rods?Anchor bar is a common foundation reinforcement material used in construction projects. It is made by pre-burying steel bars in the soil, and then pre-stressing and mechanically drilling them, so that the steel bars are tightly bonded with the soil, thus the strength of the soil and foundation can be improved.

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.

Prestressed anchor flexible support technology and its applicationDeep foundation pit support technology has always been a popular and difficult point of concern in the academic and engineering circles.