Long-depth empty field filling roof-contacting method

The invention discloses a long-depth empty field filling roof contact method, and relates to the technical field of mine filling. The long-longitudinal deep empty field filling roof contact method comprises the following specific operation steps that S1, a horizontal filling hole is constructed in the length direction of a chamber, and the chamber is communicated; s2, when the goaf is filled to the position 2-3 m away from the top plate of the rock drilling chamber, a worker welds a roof-contacted pipeline, and a metal pipe is used for connecting the drill hole and the vault of the goaf; and S3, the metal pipeline support is welded, the metal pipeline support is fixed, and vibration is prevented. The method has the advantages of being convenient to operate, easy to construct and capable of effectively reducing the risk of personnel operation when a filling pipeline is installed in a stope, reducing the construction amount and improving the personnel operation environment, after the method is used, personnel e