Device and method for casting concrete continuous walls along gob-side entry retaining by mining working face
A technology for pouring concrete and retaining roadways, which is applied in mining equipment, shaft equipment, earthwork drilling and mining, etc. It can solve problems such as tight connection of roofs in difficult coal seams, difficulty in rigid formwork, and concrete that is prone to leakage of grout, and achieves good roofing effect, Not easy to leak slurry, good airtight effect
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[0022] Below in conjunction with accompanying drawing, content of the invention is further described:
[0023] refer to Figure 1-Figure 4 As shown: a fiber flexible formwork 1 is composed of a main formwork 15 and a top formwork 16. The two sides of the fiber flexible formwork are respectively connected to the flange 9, and the flange 9 is equipped with a sleeve 11, and the sleeve 11 is penetrated with a The steel beam 2 and the flange 9 hang the fiber flexible formwork 1 on the coal seam roof through the single hydraulic prop 3 or the anchor rod 6, and the fiber flexible formwork 1 is respectively connected to the pouring port 7, the upper reinforcement opening 8, and the lower reinforcement reinforcement in turn. Port 10, limit hole 12, one end of the upper planting bar 4-1 is connected to the coal seam roof, the other end is inserted into the fiber flexible formwork 1 through the upper planting bar port 8 and fixedly connected with the concrete 5, and one end of the lower ...
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