ON THE TECHNOLOGY OF STOWING OPERATIONS AT THE INTERNATIONAL MINE

The laying work at the mines is the most labor-intensive. The article describes the technology of stowing operations at the International mine at the present time. A method of reinforcing the bearing layer with mesh sections in the form of free-standing volumetric frame elements (cylinders) with a diameter of 1.4 m at the full height of the tape in a checkerboard pattern has been selected. To calculate the standard strength of the hardening fill for the bearing layer, the recommendations of VNIMI were applied. The standard strength of the fill was 1.6 and 6.4 MPa. The selected stowing mixture of grades 15 and 60. In order to optimize stowing operations at the International mine, instead of the standard wooden bulkhead, it is proposed to use the option of the stowing bulkhead, which includes fastening, spacer posts and a filtering diaphragm. The advantages of the selected jumper type and the rationale for its use are listed. A jumper diagram, a description of its design and operation are given. Below are considered two options for using the bulkhead in stowing operations at the mine: Option 1 - with fastening and spacer posts; Option 2 - a standard type of wooden posts and a metal purlin. Comparison of calculations of indicators for the strength of the lintel structure, works on laying, costs for lintel materials, for the laboriousness of the lintel erection is given in two options. The technical result consists in facilitating the installation and dismantling of the bulkhead during stowing operations, in the safety of work during its construction, facilitating transportation, as well as the possibility of repeated use, moreover, in workings of different geometric dimensions, reducing labor costs and material consumption for stowing work and increasing their efficiency.

stowage works, backfill, hardening mixture, standard strength, stowing bulkhead, filter diaphragm, layer reinforcement, fastening post, spacer post, wooden post

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