GB/T 37611-2019General specification for advance support system in fully-mechanized mining and top coal caving mining face (English PDF)

3.1 Advance support

During the mining process of the working face, the area where the roadway in front of the working face is affected by the mining is strengthened.

3.2 Advance support system

In order to ensure safe and efficient production of fully mechanized fully mechanized caving face, single hydraulic props and liquid are used in the roadway affected by mining in front of the working face.

Temporary support for organic combination of equipment such as pressure brackets.

3.3 Transport roadway ahead support

In the transportation lanes affected by mining in front of the working face, temporary support is carried out by using single hydraulic props, hydraulic supports and the like.

3.4 Return airway ahead support

In the return air passageway affected by mining in front of the working face, temporary support is carried out by using single hydraulic props and hydraulic supports.

3.5 Equal support

In the advanced support system, the supporting equipment along the working face mining direction acts on the support pattern of the same rated strength of the roadway roof.

3.6 Non-identical support

In the advanced support system, the supporting equipment in the mining direction along the working face acts on the roof of the roadway and the rated support strength is different.

mode.