Analysis of the improvement of the working body of the cable-layer during trenchless cable laying

Abstract

The article considers the design of the working body of the cable-layer when laying the cable in a trenchless way. The analysis on improvement of a working body of the cable-layer and the main advantages of trenchless laying of cables is carried out.

Trenchless cable laying in the ground is an effective technology that allows not to destroy the top layer of soil during underground works. Due to this, the need to block roads, disrupt the integrity of existing communications, destroy plantations disappears.

Trenchless cable technology allows not only to reduce material costs, but also to reduce the time of work. The length of the cable will depend on factors such as obstacles in the form of roads, highways, construction sites. The task of trenchless laying is: laying of water supply, sewerage, gas pipelines; laying of power supply cables, telephone and fiber-optic cable communication and alarm lines; replacement of worn-out communications with new ones; laying of the sewerage of any kind.

The article also covers the analysis of the improvement of the design of cable-laying with active earthmoving working bodies (ZRO), the principle of which is based on the trenchless method, which also have limited working speed and relative working speed, design complexity and low operational reliability.

The analysis of domestic and foreign constructions of trenchless pavers showed that in the practice of construction of underground communications more than 60 models of machines with various earthmoving working bodies are used in the shape of the working surface, which differently affect the soil environment.

According to previous studies, the most promising are trenchless trailed cable-laying with passive earthmoving working bodies. However, despite these advantages, trenchless construction has not yet become widespread. This is due to the fact that the traditional working bodies of trenchless pavers work on the principle of cutting and pressing the soil into the walls of the cut slit.