In order to ensure the anchor cable construction angle, it is necessary to process the tripod suitable for fixing the base, so as to adjust the base height and the angle of the anchor bolt machine.
Xu Haifeng, the leader of the mine lane repair team, said: “when the original auxiliary support is in use, each bolt machine needs to be equipped with 3 people, with high labor intensity and low safety factor.
In order to improve the construction quality of anchor cable and ensure the safety and efficiency of construction, all cadres and workers of the mine lane repair team actively studied it, revised it repeatedly under the guidance of mine leaders and business departments, and finally made a new auxiliary support for anchor cable construction by using steel pipe and waste anchor cable tray.
In order to ensure that the construction angle of anchor cable meets the requirements, auxiliary supports need to be used in the construction of anchor cable.
During the construction of anchor cable, the new auxiliary support can form a stable slide between the roadway contour and the bottom plate, so as to ensure that the stress point is on the support during the drilling construction of anchor cable, ensure the straightness of anchor cable drilling, construction angle and construction safety, and improve the hole forming rate and quality.
On February 8, the author learned that the “anchor cable construction auxiliary support” developed by Songshan coal mine is safe and efficient, and has been popularized and used in the whole mine.
The new auxiliary support only needs 2 people per bolt machine, which can be disassembled, assembled and moved quickly, which is more convenient and efficient, and greatly improves the safety factor.” (Hao Wenli, Huang Mengfei) editor in charge: Yao Hongwei editor in chief: Xu Lin please.
The original auxiliary supports for anchor cable construction in Songshan coal mine are bulky, with many problems such as low efficiency and limited scope.
Each anchor bolt machine can construct 13-15 anchor cables per shift, which can effectively improve the construction efficiency of anchor cable.
The new anchor cable construction auxiliary support is composed of base + frame body + climbing device + connecting device.
