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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.

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

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.

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

October 10, Song Hongpeng, secretary of the municipal party committee, led a team to my town to observe the progress of the project in the third quarter, accompanied by party secretary Bai Zongcheng, deputy secretary of the party committee, mayor of the town, Dong Gang, on-site report on the construction of the project.

Shandong Ruiyu Carries Out Road Traffic Safety LectureIn order to improve the staff's self-safety awareness, to prevent road traffic accidents on the way to and from work, to enable employees to master the reasonable disposal methods after traffic accidents, and to minimize the losses, Ruiyu Company, taking the opportunity of learning and implementing the new “Work Safety Law”, invited the Traffic Police Battalion Accident Handling, Insurance Company Claims, Buick 4S Store Vehicle Maintenance and other relevant professionals to the company on Oct.

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.

The main factors of integrity and stability of anchor supportThe put into use of anchor rods eliminates the hidden dangers in safety production to a certain extent and reduces the labor intensity of workers.

Linkage between pullout force and distance distribution of anchor disk with anchorsGeotechnical anchoring skill is an important part in the field of geotechnical engineering, and it has a wide range of applications in the fields of hydraulic construction, towering structure, underground engineering, anti-slip engineering and slope engineering.

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.