Тhe device to improve the working element of the rotary trench excavator in the production process of breaking a main pipeline

The article develops a device for the rotary trench excavator. The device will enable to break an underground major pipeline from one of the side faces and above the top surface of the pipe in one operation. The design of the device enables to use it in any climatic conditions. The application of the improved device attached to the rotary trench excavator enables to enforce the structure of the construction and repair spread.