SU1710763A1 - Method of sinking vertical shaft siding - Google Patents

Abstract

The invention relates to mining and m. used in the construction of pristvolny workings (bunkers). The purpose of the invention ^ increase the rate of penetration. Pitfall production is carried out by drilling vertical wells 3 in the section of production, their blasting and the construction of lining. The wells 3 are drilled in the section 4 of the section of the section that is distanced from the wellbore, leaving the barrel pillar 5, which is developed by bores after detonation of bore vertical wells 3. 5 Il.

Description

L

at

/ (r. t

The invention relates to mining and can be used in the construction of vertical bunkers in rocks of medium strength and strong.

The aim of the invention is to increase the penetration rate.

Fig. 1 shows the position in the bottomhole of a near-vertical vertical mine working after drilling the first section of vertical wells and charging them to the inlet; Fig. 2 shows the position after the blasting of deep wells at the entry, harvesting of broken rock, drilling and charging the horizon of 1-hole located holes; in FIG. 3, the position after the erection of a permanent support for the stopping; figure 4, - section aa in figure 1; figure 5 - section bb in figure 2.

The method of driving near-vertical vertical mine workings, located between the overlying 1 and 2 underlying horizons, involves drilling deep vertical wells with 3 sections in the assigned 4 section of the cross-section vertical mine excavation, subsequent blasting of deep wells 3 from the top down, leaving the rear pillar 5 and refining the latter horizontal drill holes 6. The method also includes cleaning the broken rock and the construction of permanent lining 7- In this case, all of the above work is done removed after carrying out the barrel 8 to the full depth, during the building of the complex loading devices workings.

The method is carried out as follows.

On the overlying horizon 1, equipment for sinking is carried out, as well as technological waste is constructed in the contour of the near-vertical vertical mine workings, fixed and lowered downhole drilling equipment for drilling the first section of deep wells 3 in the vertical section of the vertical mine working. At the same time, after drilling each well 3, it is filled, for example, with sand to prevent the walls of the well 3 from collapsing and to drain it during blasting.

Upon completion of the above works, they start to charge and blast wells 3 from top to bottom in assigned part 4 to the first flow. The blasting is carried out under the protection of the rear sight 5,

which protects the support of the previously passed trunk 8 from destructive seismic loads.

After airing the bore

vertical mining and harvesting of broken rock; mining of rock in the bottomhole at the first stop is continued by drilling and blasting horizontal holes 6 in the rear sight 5.

0 After finishing the airing and cleaning of the broken rock from blasting in the rear sight 5, the formwork is lowered onto the leveled bottom using the remaining broken rock and permanent support 7 is erected

5 vertical mine workings.

Having gotten the rest of the broken off breed, they start work on the second stop.

Work begins with the cleaning of wells 3 from sand at the inlet and their charging. Further

0 the blasting, airing and cleaning of the broken rock are carried out, after which the horizontal holes are drilled in the rear sight 5, they are charged and blown up. Then, the face is ventilated and the broken rock is partially removed, on the leveled residue of which the formwork is then lowered and permanent support 7 is erected.

Works similar to works on the second run are performed for the entire length of the first

0 well section 3, after which the drilling equipment is lowered to the bottom to drill the second well section 3. At the same time, all the operations described above are repeated.

After penetrating the vertical shaft mine to the underlying horizon 2, the rigging equipment is dismantled, the permanent equipment is installed and the first is commissioned.

Fo rumula and 3 a b e and e Method of sinking pristvolnogo vertical excavation, including the drilling of vertical wells in the cross section5 of the scientific research institute of pristvolnogo development, their blasting by intrusions and the erection of permanent lining, characterized in that increases in penetration rate; vertical wells are drilled in the

0 part of the cross section of the pristyvolnogo production, leaving the trunk pillar, which is developed within the bore after the vertical wells are blown into it.

/ I

Aa

° V

/. V

FIG.

Claims (1)

Claim A method of driving a near-trunk vertical wellbore, including drilling vertical wells in a cross-section of a near-trunk working, blasting them with passages and erecting a permanent lining, characterized in that, in order to increase the speed of penetration, vertical wells are drilled in a part of the cross-section of the near-trunk working that is related to the trunk, leaving the trunk pillar, which is developed within the setting after the explosion of vertical wells in it. Fi g. 3