How open development of permafrost alluvial deposits with internal dumping

 

The invention relates to the mining industry and can be used for open development of permafrost alluvial deposits from the inner stacking. The method includes the division of career fields into blocks, the loss of strength of rocks within the block opening and the notch of the productive formation with the placement of overburden in a goaf spent on the procedure block. The blocks are divided into parallel Zachodni in the direction of their testing. The reservoir further Zachodni placed in the reservoir of the previous zagadki. Overburden subsequent block is placed to the goaf subsequent Zachodni previous block. Improving the efficiency of the development of the placers. 1 Il.

The invention relates to the mining industry and can be used for open development of permafrost alluvial deposits with domestic stockpiling.

There is a method of horizontal development of mineral deposits with the use of conveyor transport and internal dumping, where the career development field are two opposing cutting trenches leaving a pillar - SSR 343042, MCI E 21 41/00. Sidorov A. S., Onoprienko N. A., Golovko, L. K., and others. Open the way of development).

The closest essentially a technical solution is the way of open development of permafrost alluvial deposits, including the division of career fields on blocks located transverse to the extension of the scattering, the loss of strength of rocks within the block opening and the notch of the productive formation Sands with subsequent transport them to the processing plant with a design layer to block the cross-benches and placement of overburden in the mined-out area to be mined in order block (ed. St. USSR 852010, MKI E 21 41/00. Emelyanov Century. And., Mamaev Y. A., Savenko R., and others the Way open development of permafrost alluvial deposits.) However, the development of permafrost alluvial deposits of the internal stacking involves the loosening and transportation of the productive formation in winter on the blade enrichment plant, which is more expensive than summer Sands washing as defrost. Existing technologies dozer overburden peat with external stacking does not meet the requirements of conservation and re-buldozernaya these works funding is not provided.

In this regard, there is the problem of reducing the cost of development of permafrost of the placers with internal dumping and washing sand as defrost without transportation to winter blade.

Thus, the known methods do not provide effective development of permafrost placers with internal dumping and do not meet the requirements of environmental safety.

The objective of the proposed technical solution is to provide training sand sluicing as defrost with simultaneous internal dumping and reclamation of the quarry field.

The technical result obtained by carrying out the present invention is that the block is divided into parallel Zachodni in the direction of their testing with the placement of the productive formation subsequent zagadki on the reservoir of the previous zagadki, on the premises vacated subsequent Zachodni place overburden the next block.

Comparative analysis of the prototype shows that in the inventive method, the block is divided into two parallel Zachodni in the direction of their mining, overburden previous block (two faces) are placed on developed pray layer of the previous (first) zagadki. On a vacant area of the subsequent (second) of zagadki place overburden previous block. Thus, the internal stacking without transportation a productive formation in a temporary stockpile promstanok.

The comparison of the proposed solutions with other technical solutions in this field of technology is not allowed to reveal in them the features distinguishing the claimed solution to the prototype that allows to conclude that the criterion of "the existence of differences".

The drawing shows a cross-section of the excavation front with internal dumping.

Offers an open development permafrost alluvial deposits with internal dumping with the division of career fields into blocks. The method involves the loss of strength of rocks is one of the known methods, such as drilling and blasting, mechanical or hydraulic thawing. Then make Stripping with the placement of overburden in a goaf spent on the procedure block.

The method includes the steps of drilling the initial cutting trench 1, the separation of the fields in blocks 2, 3, separation of the block in the previous 4 and later 5 zagadki, moved the following way. First pass split trench 1, then in the mined-out area of the trench placed overburden unit 2, for example, a bulldozer with mechanical loosening. After that, the block 2 is divided into zagadki. The reservoir further Zachodni 5 is placed on the reservoir of the previous Zachodni 4, and on the vacated area Zachodni 4 place overburden unit 3. Then the cycle repeats. After washing the productive formation on the premises vacated place part of the overburden is placed on the previous benches blocks.

Thus, removing the productive formation is the most economical technology as defrost bulldozer with simultaneous internal dumping.

Claims

How open development of permafrost alluvial deposits with internal dumping, including the division of career fields into blocks, the loss of strength of rocks within the block opening and the notch of the productive formation with the placement of overburden in a goaf spent in the order of block, characterized in that the blocks are divided into parallel Zachodni in the direction of their testing, and reservoir Poslednyaya to the goaf subsequent Zachodni previous block.

 

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