Feeding device for feeding concrete and gas into the column of drilling of a drilling unit during formation of a boring hole concreted, and method for forming a boring hole becomes a

摘要

Feeding device for feeding concrete and gas into the column of drilling of a drilling unit during formation of a boring hole concreted, and method for forming a boring hole concreted.The invention relates to a feeding device for feeding concrete and gas to the interior of the column of drilling of a drilling unit during formation of a boring hole concreted, which has a drill column, a column for connection to periurau00e7u00e3o Connection to the drilling column, a connection for concrete for connection to a transport unit of concrete.A connector for gas for connection to a source of pressurized gas, an arrangement of the line through which the connection for concrete and connecting to a gas are in communication with the communication for the drilling column, a valve for concrete which is provided in the arrangement of the line and with a The communication between the connection for concrete and the connection to the drilling column can be closed.A valve for gas is provided in the arrangement of the line and with which a communication between the connection and the connection for gas drilling column can be closed.And, therefore, provided that the valve for concrete comprises an actuation element to actuate the mechanical valve for gas, so that the mechanical actuation element is arranged so that the gas valve to close when the valve for concrete is open. The invention also relates to a method for forming a boring hole concreted by means of this feeding device.