SU1071755A1 - Method of sinking a mine working with sinking shaft lining - Google Patents

Abstract

1. METHOD OF PORCHING OF THE MINING OPERATING LOWER STRAP, including creating a layer of mud between the rock and lining, characterized in that, in order to expand its effective application area, the lining of the slot, located along the perimeter of the lining, is drilled between the pits during the immersion process. 2. Method according to Claim 1, characterized in that the rock between the cavities is drilled on both sides of the knife part of the lining before the projection is formed in the hard rocks of the shear lining by the teeth. 3. A method according to claim 1, characterized in that the rock between the gaps is drilled simultaneously in the diametrically opposite areas of the support. (L SP CL

Description

The invention relates to mining, namely the construction of underground structures in difficult hydrogeological conditions.

The known method of excavation of mine workings includes the installation of drilling equipment, the installation of a forshakhta, drilling of the barrel in steps to full diameter and immersion of the lining in the barrel 1.

The disadvantage of the lime process is a lot of effort.

The closest technical solution to the present invention is a method of penetrating mining workings with a drop support, including the creation of a layer of mud between the rock and the support to reduce friction 2.

The disadvantage of this method lies in the practical impossibility of the intersection of the interlayers of hard rock with a drop support and the incision of the hard rocks into strong waterproof rocks. This disadvantage drastically narrows the scope of effective application of the method.

The aim of the invention is to expand the field of effective use of lowering shields.

The goal is achieved by the fact that according to the method of penetration of mine workings with a drop support, which includes creating a layer of mud between the rock and the support, in the path of immersion, the lining in the rock has a drill slot, located along the perimeter of the lining, and rock the gap between the gaps in the diving process lining.

In addition, the rock between the holes is drilled on both sides of the knife-side part of the lining until a projection is formed in the strong rocks of the shear teeth.

In addition, the rock in the gaps between the gaps is drilled simultaneously in the diametrically opposite areas of the lining.

FIG. Figure 1 shows the drilling of slots in the way of the drop support; in fig. 2, section A-A in FIG. one; in fig. 3 — sinking of the sinking lining with simultaneous drilling of the rock between the gaps; in fig. 4 shows a section BB in FIG. 3

On the path of immersion, the lining in the rock is drilled with a slit 1 with chisels 2 shock cable machines (four are recommended) located around the tunnel head 3, equipped with a rotary platform 4. The latter is turned back by an angle of about 100 ° using two-drum winch ropes Copra and fixed on the platform (winch and pulleys not shown). The location of the pulleys 5 and 6 of the copra and the rotary platform at the axis of rotation of the latter provides a permissible, up to 2 °, angle of deviation of the ropes at significant angles of rotation of the platform.

The rock at the bottom of the gap is destroyed by rises and drops of bits 2, which are moved around the face by the turns of the pulley pad 4.

The walls of the cracks support mud. The drilled rock is delivered to the surface by pulpoherlift, separately or together with bits, to the well-known pipe columns.

In forshahte 7 make lowering support 8.

Tubes 9 are embedded in concrete lining and are used for flushing during immersion of the lining and cementing of the fixing space after immersion.

The support 8 is immersed through pressure-resistant and other rocks by drilling them in the spaces between the slots on either side of the knife lining until a projection is formed in strong rocks, cleaved by the knife teeth with the force of hydraulic jacks and the weight of the support.

The verticality of the immersion lining provides simultaneous drilling of rocks in diametrically opposite areas and vertical slots 1.

After immersion of the support roof to the design depth and tamponage of the anchored space, excavation of the rock inside the roof support is carried out in any way; further penetration of the trunk is carried out using a pile driver 3.

The present invention will allow to expand the area of effective application of the method of penetration of mine workings with a drop support.

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Claims (3)

1. METHOD FOR MINING THE MINING WITH A DOWNWEAR, including creating a layer of clay solution between the rock and the support, characterized in that, in order to expand the area of its effective application, in the rock immersion the supports in the rock, drill gaps located around the perimeter of the support and drill the rock in the gaps between the cracks in the process of immersion lining. 2. The method according to claim 1, characterized in that the rock between the slits is drilled on both sides of the knife part of the lining until a protrusion is cleaved off by the teeth of the lining in strong rocks. 3. The method according to π. 1, characterized in that the rock in the spaces between the slits is drilled simultaneously in diametrically opposite sections of the lining. FIG. 1