The manufacturing steps of Underground steel anchor cable mainly include anchor cable installation, anchoring method grouting, anchor pier erection, anchor cable tensioning, hole sealing grouting, and external protection.
Anchor installation: The first step is drilling, which is a crucial process in anchor construction. Downhole impact drilling machines are usually used to ensure the efficiency and quality of drilling. After drilling is completed, the drill rods and tools should be pulled out one by one to prepare for subsequent processes.
Anchor grouting method: After the installation of the anchor cable, it is necessary to firmly bond the anchor cable with the surrounding strata through grouting to form an anchoring section. This process is crucial for the stability of the anchor cable.
Anchor block: After anchoring is completed, it is necessary to establish an anchor block to withstand the tension of the anchor cable. The anchor pier should have sufficient strength and stability to ensure that the anchor cable can effectively function.
Tensioning of anchor cables: After the installation and fixation of anchor cables, they need to be tensioned to generate prestress and enhance their support capacity. Tensioning is one of the key steps for anchor cables to function effectively.
Sealing grouting: After the anchor cable is tensioned, it is also necessary to seal grouting to ensure that the interior of the anchor cable is isolated from the external environment and prevent corrosion and other problems from occurring.
External protection: External protection measures for anchor cables are also very important, especially when used in harsh environments. For example, concrete mixed with Portland cement can form a passivation film on the surface of the anchor, but the anchor and its covering layer in the atmosphere are affected by harmful substances such as CO2 and acid rain, so effective protective measures need to be taken.
The use environment of Underground steel anchor cable is usually the reinforcement of geological structures such as slopes, tunnels, and underground engineering.
Anchors may face different challenges in different usage environments. In slope reinforcement, it may be necessary to remove loose pumice and rock debris, and seal the gaps on the slope surface to ensure that the anchor cables can work stably. In tunnels or underground engineering, anchor cables are mainly used to improve the stability of structures and prevent dangerous situations such as collapse caused by poor geological conditions.
Overall, the manufacturing and application of Underground steel anchor cable is a complex process involving multiple steps and technical requirements. It needs to adapt to various geological and environmental conditions to ensure the safety and stability of the project.