浅埋深条件下切顶卸压自动成巷技术研究

doi:10.11799/ce201701010

Abstract

Abstract: Based on the principle of No-Pillar Mining with Gob-Side Entry Formed by Advanced Roof Caving, The idea of the test is put forward in the condition of shallow depth in the west of our country. By selecting the typical Shen Dong mining area of Ha Lagou coal mine 12201 working face. In the field, a constant resistance anchor cable is put forward, application of blasting technology, The hydraulic single steel frame after processing the word block rock and a series of experimental. And according to the experimental design scheme for construction. The construction of a total of 968 blasting holes is carried out in the field, installation of constant resistance cable 291,Cutting roof roadway 580 meters. After monitoring, the roadway sink is 50mm, and the roadway is in good shape, and the roof is stable. The results of the test surface: the automatic cutting and unloading of the roof and unloading pressure can be applied to the special geological conditions of the western mining area. It Will provide an important theoretical basis and experimental basis for alleviating the tension of mining, mining, high ratio of mining, waste of resources and so on.

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Experimental research on the Technique of No-Pillar Mining with Gob-Side Entry Formed by Advanced Roof Caving Under shallow depth

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