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Horizontal directional drilling (HDD) is a construction machine used to lay various underground public facilities without excavating the ground, such as microducts and cables. Based on the problems encountered during underground crossing construction with HDD, this paper analyzes the causes of devia

In the realm of underground fiber optic cable installation, the technique of fiber cable blowing has emerged as a highly efficient and cost-effective method, especially in urban environments where traditional trenching and cable laying can be both disruptive and expensive.

Due to different construction conditions and construction requirements, fiber optical cables will be laid in different methods and scenarios. Most regular laying methods includes: direct burial, overhead(aerial installation), pipeline(underground), underwater and Indoor, etc.

Fiber cable blowing technology is a popular optical cable laying technology. The high-pressure and high-speed airflow generated by the air compressor and the microduct conduit or air blowing fiber are sent into the pre-layed silicone tube through cable jetting machine. Silicone tube protection can greatly reduce the friction coefficient between optical cables and conduits, greatly increase the length of a single laying. However, encountering blockages during this process is a common challenge that needs to be handled promptly and efficiently.

The ratio of the outer diameter of the cable to the inner diameter of the duct should be close to 60%. With this value, the greatest blowing distance is achieved.

Air-blown fiber optic cable installation is a highly efficient method used for laying long-distance fiber optic networks. This technique, also known as air-assisted cable installation, offers significant advantages such as reduced installation time, minimized disruption, and flexibility in network.

In the world of fiber optic network installations, the process of deploying fiber cables plays a crucial role in determining the efficiency and reliability of the network. Traditionally, cable pulling has been the go-to method for installing fiber optic cables.

In the field of cable installation, the traditional method of pulling cables has gradually been replaced by a more efficient and cost-effective technique known as air blowing.

Micro duct connectors play a crucial role in ensuring reliable and efficient fiber optic communication. To maintain the highest standards of performance and reliability, quality control (QC) procedures are essential during the manufacturing and assembly of micro duct connectors.