SU1295001A1 - Method of driving mine workings - Google Patents

Abstract

The invention relates to mining and m. used in the excavation of horizontal, vertical and inclined mine workings. The aim of the invention is to increase penetration rates, reliability and waterproofing properties of the lining. The development and excavation of rocks is carried out, formwork is erected. After that, cementing wells 7 are drilled in the rock walls of the mine in the places of the largest inflows of water. In the well (L

Description

7 inserts nozzles with hoses 6 and removes water from the rock mass. Then, simultaneously with moving the formwork to the next entry, a waterproofing material is installed equidistantly to it. The gap formed between the material and the rock wall of the excavation is filled with a high-speed body material (foam plastic 12) forming the shell. This creates a secondary water barrier, and the entire

The invention relates to mining and can be used in penetrating horizontal, vertical and inclined mine workings.

The aim of the invention is to increase penetration rates, reliability and waterproofing properties of the lining.

The drawing shows erected forging, incision.

A device for carrying out the method includes a stepped bottom formwork 1 with jacks 2 movements, a pallet 3 with drums 4 mounted with it with ribbons 5, hoses

6 with discharge pipes. I -

The method is as follows.

in a way.

After drilling in the hole of bore-holes, drowning, blasting them, airing the bottom, harvesting rocks with simultaneous pumping of water from the bottom and making the second drilling cycle, charging, blasting holes with partial harvesting of the rock in the places of the largest water inflows drill hole 7, The pipes with hoses 6 for drainage are inserted and fixed in them and lowered to the bottom. After that, the hydraulic system is turned on and the displacement jacks 2 lower the pallet 3 with the drums 4 and the belts 5 down, and the belts 5 are passed through the slots 8 in the pallet and are placed in the gap between the lining 9 and the rock walls 10 in the form of a solid protective screen 11 along the entire perimeter . Then through the screen 11 into the gap between it and the breed walls

the water flow passes through the hoses 6 to the bottom. The inner diameter of the shell is less than the outer diameter of the base layer lining. After the creation of the water barrier, formwork i is removed, and under the action of its own weight on the jacks 2 it is lowered onto the Pallet 3 and centered. The walls are concreted at the gate and the hardening mixture 14 is injected into the surrounding massif. 1 hp f-ly, 1 ill.

a porous material expanding at the nozzle exit, for example, foam plastic 12, and thereby creating a secondary water barrier before

erection of lining. In this case, almost the entire flow of water passes through the hoses 6 to the bottom. After creating a double waterproof layer, the tapes 5 and the foam plastic 12 are made

the formwork 1 from the previously laid concrete 13, and under the action of its own weight on the displacement jacks 2, is lowered onto the pallet 3, centered, and the walls are concreted for entry. At the end of concreting the walls, the last operation is carried out - injecting a hardening mixture 14 into the surrounding array through the previously installed shanks 5 to create

the third insulating and strengthening layer 14, ensuring in combination with the other two 11 and 12, the quality and reliability of the erected lining, as well as its waterproofing properties.

The proposed method allows to increase penetration rates, reliability and waterproofing properties of the lining.

Claims (2)

1. The method of excavation of mine workings, inclusions development and excavation of rocks, erection of formwork, drilling cement holes in the rock walls of the excavation, forcing a hardening mixture in them and creating a bearing lining layer, and forcing a hardening mixture into an array after creating a supporting lining layer, characterized by that, in order to increase the rate of penetration, reliability and improvement of the waterproofing properties of the lining, after drilling the cementing wells, water is drained from the rock mass after the drilling wells, while iem formwork to the next stope equidistant she set gidroiRedaktor Volkova Compiled by L. Berezkina Tehred L. Serdgokova Proofreader G. Reshetnik Order 579/35 Circulation 455 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 295001 4 the soldering material, the gap between which and the breeding wall, is filled with a high-speed cellular material that forms a shell, the inner diameter of which is less than the outer diameter of the support lining layer. 2. The method according to claim 1, characterized by the fact that foam is used as a fast-hardening bulk material.