SU1747610A1 - Method of building subway structures - Google Patents

Abstract

The essence of the invention: at the end of the penetration of the trunks, overrunning development is carried out tangentially to one side of the main trunk, which is turned and cut to the distillation tunnel closest to the trunks, match it and guide it. Simultaneously with the sinking of the overrunning workings, cargo and empty haulage openings are passed from the auxiliary trunk to the joining with the free-running output. At the end of the sinking, the cargo hauling output from it is normal in terms of the main shaft, vertical working is performed, from which inclined production is cut. In the trunk with the direction of the inclined excavation in the plan opposite to the main stele with a downward slope under the nearest distillation tunnel, the auxiliary generation passes and matches it with the vertical output of the distillation tunnel. Horizontal spinal excavation is cut from the place of the cross section, from which the spinal tunnel is cut. and lead in opposite directions to subsequent distillation tunnels. 2 Il. THX

Description

FIELD OF THE INVENTION The invention relates to mining, in particular to the construction of underground structures by underground mining.

A known method of constructing underground structures of the metro includes the sinking of a vertical shaft and equipping it with a cage lift, sinking a mine yard, an freeway adit, ventilation and distillation tunnels with equipment for their rail transport, sinking auxiliary mine workings.

The closest to the proposed solution to the technical essence and the achieved result is the method of construction of underground structures of the subway, including the penetration of the main and auxiliary shafts, performing interfaces with the near-barrel workings, the driving of the freewheel, cargo and empty tail-out workings of the near-barrel yard closest to the trunks, and subsequent tunnels and driving auxiliary workings.

The efficiency of the works and the pace of construction in the known method are insufficient. Indeed, all sorts of cargoes destined for different stages of construction are transported along the same mine workings in both directions. To increase the efficiency of work and

about

that

ABOUT

construction of cargoes requires separation of cargo flows, which can be achieved by changing the technological schemes of sinking and placement of mine workings intended for the construction of underground metro facilities, mechanization of haulage and transportation of rock mass, fastening and auxiliary materials and equipped from the bottom to the surface and vice versa.

The purpose of the invention is to increase the efficiency of work and the pace of construction.

FIG. Figure 1 shows the technological layout of the mine workings and underground transport, a plan view; Fig. 2 is a section A-A in Fig. 1. The method is carried out as follows;

The main 1 and auxiliary (cargo-human) 2 vertical shaft shafts pass. They cut the matings with the loading and unloading and metering cameras. The main shaft 1 is equipped with a cage lift from the side of the overrunning roadway 3, and from the opposite side - with skips.

On the cage lifting side of the main bore 1, it is first aligned with it along a direct tangent to it and parallel to the routes of the distillation tunnels in both directions, begin sinking of the overrunning production 3. After sinking the straight section of the overrunning production 3, the length of which is selected in accordance with the design length empty and cargo branches, turn it in the direction of the routes of the distillation tunnels 4-7 and continue to drive the free-running output 3

Simultaneously with the sinking of the overrunning excavation from the auxiliary shaft 2, which is equipped with a cage lift, also in both directions to the route of the overrunning excavation 3, the cargo 8 and the empty 9 haul openings of the auxiliary trunk 2 are penetrated to the connection with the overrunning production 3, which passes trails close to the trunks 1 and 2 of the distillation tunnel 4. and begin its passage.

All workings are driven in a mechanized way, for example with the help of shields, and transportation of the spent rock mass from the faces is through a downhole conveyor loader (for example, a conveyor belt or scraper conveyor) into mine trucks that move along rail tracks 10 using, for example, electric locomotives haulage to cage lift main trunk 1.

At the same time, with cargo haulage production 8 along the normal from the main shaft 1, vertical production 11 is performed downward, from which to the other side of the main

the barrel 1 is cut with a rise in the direction of the barrel 1, inclined production 12, which ends at the complex of loading and retaining devices of the main trunk 1. The penetration of inclined production 12 is carried out with

0 using, for example, a conveyor belt 13, periodically lengthened following the advancement of the excavation 12 and left for further operation

5 At the same time, the forge mass, worked out in the bottomhole, is fed down the conveyor 13 to a temporary lifting device (for example, a bucket elevator), which overloads the rock mass into trolleys,

0 located on rail tracks 10 cargo haulage openings 8 and is delivered to the surface through the cage lift (left trunk 1.

Simultaneously with the sloping

5 excavation 12 with cargo haulage excavation 8 in the barrel in the plan with the direction of the inclined excavation 12 in the direction opposite to the main trunk, with a slope down to the nearest distillery

0 tunnel 4 passes auxiliary production 14 and mates it upward with additional vertical production 15 with a distillation tunnel 4. Driving auxiliary production 14 leads

5 using a belt conveyor 16, periodically lengthened following the advancement of the development 14 and left for further operation.

The weight coming from the auxiliary excavation 14 of the hearth is transported by conveyor 16 to the cargo branch of the haulage excavation 8 to the trolleys located on rail tracks x 10 or, in the absence of empty trolleys, to

5 feeds in the conveyor hopper

17, equipped with sides and installed on the cargo branch of haulage excavation 8 parallel to its rail track 10, with the possibility of subsequent overload

0 rock mass to the conveyor 13 and feeding it into the skip hoist of the main shaft 1. The conveyor 16 and the conveyor hopper 17 are left for further operation,

5 From the place of additional vertical production 15 from the distillation tunnel 4 in the direction crossing the routes of the other distillation tunnels 5-7, horizontal ridge production passes

18, which is consistently started and

lead tunneling tunnels. In the ridge excavation 18 above the additional excavation 15, the circular tipper 19 of the trolleys is installed with the possibility of unloading them onto the conveyor 16 of the secondary excavation.

Further construction of the tunnels lead on the following technology. The mining mass worked out in the tunnels 4–7 by loading devices (loading machines, loading conveyors, etc.) is loaded into trolleys and, for example, delivered by electric locomotives to the ridge production 18 and further to the dumper 19 of the trolleys unloading onto the conveyor sixteen.

The auxiliary mine conveyor 16 T4 of the hearth is transferred to the conveyor 13 of the inclined mine 12 and then through the loading device along the skip lift of the main trunk 1 is brought to the surface, where, for example, it is loaded into dump trucks and taken out. In the case of a delay in the removal of rock mass on the surface (for example, the absence of dump trucks) and stopping the skip lift, the rock mass from the conveyor 16 is fed to the conveyor hopper 17, and then, with the start of the conveyor belt 13, the rock mass from the hopper is unloaded onto him

Tubing and other large-sized fastening materials are lowered into the mine through the cage lifting of the main shaft 1 and delivered in trolleys (or other vehicles, for example, platforms, platforms) along rail tracks of 10 freewheel production to the distillation tunnel 4, and from there to the spine production 18 ff. the corresponding face of the tunnels 5-7.

Auxiliary materials (concrete mortar, brick, wood, facing slabs, etc.) and people are lowered into the mine along an auxiliary shaft 2 equipped with a cage lift. Auxiliary materials in trolleys are transported along rail tracks 10 of the cargo branch of haulage excavation 8 to overrunning generation 3 and further into the slaughterhouses, similar to the delivery of fastening materials.

For the maintenance and repair of belt conveyors 13 and 16, freight trolleys are installed on their stands, which allow the delivery of repair materials without stopping and. reversing belt conveyors.

The proposed method improves the efficiency of the works and the rate of construction by accelerating the construction and increasing the productivity of the near-5 barrel yard.

Claims (1)

Invention Formula The method of construction of underground structures of the metro, which includes the penetration of the main and auxiliary shafts, the execution of interfaces with the near-barrel excavations, the sinking of the freewheeling, cargo and empty tailings 5 of the near-barrel yard, closest to the trunks, and subsequent distillation tunnels, the excavation of auxiliary workings, about t-l and the fact that, in order to increase the efficiency of work and 0 construction rates, overrunning excavation is done at the end of the trunk penetration to one side of the main trunk: first along the straight line tangential to it and parallel to the tracks of the tunnel tunnels, and then turning towards these routes, and passing t to the distillation tunnel closest to the trunks, mating with it and driving it simultaneously with the passage of the overrunning excavation from the auxiliary trunk pass cargo and empty haulage openings up to the junction with the overrunning output Coy, after the end of the hauling of cargo haulage 5, the workings in the direction normal to the distillation tunnels from the main shaft from the haulage downward make vertical workings, from which the inclined workings are cut to the other side of the main trunk, simultaneously in the trunk in the plan with the direction of the inclined workings with cargo haulage development in the opposite direction from the main trunk with a slope 5, the auxiliary production goes down under the nearest distillation tunnel and is aligned with an upwardly directed additional extraction with the distillation tunnel from the place of their assembly in 0, crossing the routes of the subsequent distillation tunnels, and passes horizontal ridge development, from which it is sequentially started and simultaneously driven into 5 opposite directions of subsequent distillation tunnels.  h h - ..t.r ... ,, it ..:, ..   gsh - “fc% J 4V-s .. w ol