The anchor rod body is the grouting pipe. After the grouting liquid is pressed, it can not only anchor the rod body, but also part of the grouting liquid will penetrate into the cracks of the anchor hole when the grouting pressure is large, which plays a role in reinforcing the surrounding rock. The upper hole should be equipped with a grouting plug and an exhaust pipe.

Cold-drawn steel pipe is one of the most widely used steel pipes in daily life. Cold-drawn steel pipe is a whole steel pipe produced by drawing, extrusion, perforation and other methods. There is no seam on the surface. The hollow cross-section is round, square and other shapes of pipes.

Structural changes are taking place in the steel industryAt present, China's economy has shifted from a stage of high-speed growth to a stage of high-quality development.

In modern construction and engineering, steel pipes, as an important basic material, play an indispensable role. Whether it is used for building structures, bridge construction or industrial pipelines, steel pipes have extremely wide applications. This article will provide you with a detailed analysis of some important issues about steel pipes, including the production cycle, selection guide and usage of steel pipes.

Self-drilling hollow grouting anchor rod is used in foundation and foundation engineering for foundation reinforcement, wind turbine foundation pile foundation, coastal protection, abutment reinforcement, retaining wall foundation, dam consolidation grouting and other projects.