SU1608354A1 - Method of constructing temporary hydraulic isolation dam - Google Patents

Abstract

The invention relates to mining and can be used in the development of mineral deposits, mainly potash and rock salts, by underground mining, in areas where groundwater and brines are dangerous to break. The purpose of the invention is to improve the reliability of the jumper in water-soluble rocks (GRP). In the mine workings completed in GRP, a cut is performed, in the lower part of which a cushion of fast-hardening mixture (BS) prepared on GRP using material from a cut hole with burning material is laid. On the pillow, along the edges, two bags are laid with bags filled with a working agent, in which quality the GRP is used. As the bags are stacked one above the other, the cavity between them is filled with BS from GRP with burning ones. The thickness is determined on the basis of the bearing load and stability, but not less than the distance between the canvases. When fresh water or low-mineralized water approaches the web, it is saturated by dissolving GRP in bags, reducing the brine’s ability to leach material from the web. 2 Il.

Description

The invention relates to mining and can be used in the development of mineral deposits, mainly potash and rock salts, by underground mining in areas that are dangerous for the breakthrough of groundwater and brines.

The purpose of the invention is to increase the reliability of the jumper in water-soluble rocks.

FIG. Figure 1 shows the output with a temporary waterproofed jumper placed in it, the cross section; in fig. 2 shows section A-A in FIG. one.

In a mine workout 1, passed in water-soluble rocks, for example, in salt rock, a cut 2 is made. In the lower part of a cut 2, a feeder (foundation) 3 is placed from a quick-hardening mixture prepared on water-soluble material.

rock (with the use of crushed salt) with a tenant. A canvas 4 and an additional canvas 5 from jute bags 6, filled with a working agent, are placed on the pillow 3 along the edges. As the bags 6 are stacked one above the other, the cavity 7 between them is filled with a quick-hardening mixture to form a bulkhead.

As a working agent and material for the preparation of a rapidly hardening mixture of water-soluble rocks with burning agents, materials are mainly used at the work site, for example, rock salt and brine on magnesia cement. When fresh or slightly mineralized water approaches the web 5, it is saturated by dissolving the rock in bags 6, reducing the ability of the solution to leach the material.

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Claims (1)

of them. The core thickness of the lintels of water soluble rocks, before being erected of at least 1/3 of the total thickness of the web, creates pillows of the lintels from the mechchka. In the lower part of the bridge, a quick-hardening mixture is laid, then a pipe 8 with a valve 9 is placed on it to erect one canvas from the bags of water discharge from the canvas 5 and the organ and behind it an additional canvas from the bags with the working agent to form a cavity between them In this case, a water-soluble rock is used as a working agent, and a mixture of water-ionization of temporary drainage is used as a quick-hardening mixture. Invention Formula The method of erection of temporary waterproofing .. „..., jumper, which includes a highly soluble soluble rock with a perceiver, which The canvases from the one located above are fed into the cavity between them, forming other bags filled with a working jumper agent, the thickness of the core volume of the mixture, characterized in that, for the purpose of jumpers, it is assumed to be not less than improving the reliability of the jumper w1 / 3 of the total thickness of the lintel. 11 II G I /. (Rig.1 .- .- ;.c-j  . 4.-4 --.- . ./ .. ..... s .- ; .. b ...- L v; -.; .. .