The case of Daliuta Coal Mine of Shendong Coal Branch

Model: EBZ260H Time: March 19, 2009 - May 9, 2009 Location: Daliuta Town, Shenmu County, Yulin City, Shaanxi Province Unit: Daliuta Coal Mine, Shendong Coal Branch Roadway and its geological conditions 1, the total length of the roadway is 1053 meters. 2. The hardness of the roadway rock is F5-F8, and the cross-sectional shape is arched. Roadway support section and form Section: 5.0 meters× 5.3 meters Support: anchor rods, anchor cables, hanging nets Footage Cumulative footage: about 330 meters; *8981 large footage: 10.2 m/day. Customer evaluation Sany EBZ260H hard rock boring machine is reasonably designed, the mechanical, electrical and hydraulic system performance of the whole machine is stable and reliable, it has strong adaptability, the overall condition of the equipment is good, and it can meet the requirements of our company's rock roadway excavation; In March 2009, the footage was 133. 2 meters, more than 20 meters beyond the production task, and on March 18, 2009, a record of 10.2 meters in a single day, won the unanimous praise of our mine.