Method to fill gaps in mining course

FIELD: mining.

SUBSTANCE: method includes filling gaps with the help of flexible curb, which is a tight container sewn from hose of strong watertight cloth, shaped as a sack or bag closed at both ends. Valves with holes are installed in upper corners of flexible curb. One valve is intended to feed cement-containing mixture into the container, and the second one - for air outlet from filled space. The flexible curb is evenly laid behind course strengthening space, and cement-containing material is injected through one of valves, at the same time air is exhausted from filled space via the other valve.

EFFECT: high-quality and efficient filling of gaps in mining courses.

1 dwg

 

The invention relates to the field of mining and can be used in underground mining of mineral deposits with a mined-out space hardening mixtures, in particular, using the technology of voids, of wood thrown, domes, space between the ridges through the use of flexible formwork.

There is a method of bookmarks when descending extraction of minerals by benches, including laying the underlay layer hardening mixtures with the addition of non-explosive destructive substances, while the height of the underlay layer, laying hardening mixtures, chosen depending on the technological negotated goaf benches based on 10%increase hardening of the mixture. (Application: No. 94028495/03, 28.07.1994 "Method when a downward extraction of minerals by the benches".)

The disadvantage of this invention is that it is difficult to ensure the quality of voids backfill material in mined-out space due to calculation errors in surveying measurements of the volume of the material. Resulting in netsalary underlay layer or wastage of material used bookmarks in connection with the leaks.

The proposed solution aims to create is the way bookmarks voids in the mine workings, efficiently and economically to produce a bookmark of voids in the mine workings.

The problem is solved by using the fact that the filling is done with the help of flexible formwork, representing a sealed container made of sleeves durable waterproof fabric having the form of a bag or package, which is closed at both ends, in the upper corners which provide valves with openings sufficient, on the one hand, for feeding cementitious mixture in the container, and on the other hand, to release air from the filled space, with flexible formwork evenly placed for sacranie space generation and through one of the valves inject cementitious material through the other valve is released the air from fill space.

A distinctive feature of the proposed method from the prototype is that compared to the prototype, it allows you to perform a bookmark Sakrebulo space quickly and efficiently due to the fact that the flexible formwork is placed in sakrana space as the promotion of generation, the filling of flexible formwork to produce the required volume, visually controlling the output of the mixture when it is full.

The invention is illustrated in the drawing, which is a flow diagram of the method of the laying of the voids in the Shah is different workings.

In the diagram the number of items shown: concrete pump 1; a flexible hose cementitious mixture 2; shield 3; flexible formwork with cementitious mixture 4; a valve for feeding cementitious mixture 5; valve for air outlet 6.

The method is as follows:

After installation of the next link of the lining 3 for sacranie space evenly laid flexible casing 4. Consistently through the concrete pump 1 and the flexible hose 2 through valve 5 into the flexible casing 4 is pumped cementitious material, and the air inside the flexible casing 4, extends through the valve 6, through which also act as visual control of the output mixture. On completion of the works when full, a flexible casing 4 hose 2 is removed, the valve smothered that prevents the mixture. Then the hose 2 rearrange the valve 5 the following flexible formwork.

The sizes and location of valves flexible formwork shall be determined in accordance with the mining and geological conditions of filling Sakrebulo space and voids mine workings, which ensures uniform filling of voids or wood thrown.

The proposed method of laying the voids in the mine workings allows tab Sakrebulo space quickly and efficiently due to the fact that the flexible opal is BKU have in sakrana space, advancing, developing, the filling of flexible formwork to produce the required volume, visually controlling the output of the mixture when it is full. In addition, the proposed technology allows to reduce the complexity of the whole process and ensure safety when doing work in difficult mining and geological conditions for the placement of equipment and operating personnel at a safe distance.

The way bookmarks voids in the mine workings, including the technology of filling hardening mixtures spaces between the ridges and voids, of wood thrown, domes, underlay layer, characterized in that the filling of the voids produced by using a flexible casing which are sealed flexible formwork made from a sleeve durable waterproof fabric having the form of a bag or package, which is closed at both ends, in the upper corners which provide valves with openings sufficient on the one hand to supply the cement-containing mixtures in a flexible casing, and on the other side to release air from the filled space, with flexible formwork evenly placed for sacranie space generation and through one of the valves inject a cement-containing material, while through the other valve is released the air from the filled space of the flexible casing.



 

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