CN218759909U

CN218759909U - Arrangement structure of stage transportation horizontal drainage roadway

Info

Publication number: CN218759909U
Application number: CN202221843516.9U
Authority: CN
Inventors: 范庆霞; 何青松
Original assignee: Hainan Mining Co Ltd
Current assignee: Hainan Mining Co Ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2023-03-28
Anticipated expiration: 2032-07-18

Abstract

The utility model discloses a horizontal sluicing tunnel arrangement structure of stage transportation relates to underground mining technical field, including sluicing well, sluicing tunnel, stage haulage tunnel, connection inclined drifts, sluicing well end connection sluicing tunnel connects stage haulage tunnel and sluicing tunnel respectively at inclined drifts both ends, and the bottom plate in stage haulage tunnel is higher than the bottom plate in sluicing tunnel, and the drop that forms between the two is greater than the half of sluicing tunnel height. The fall between the stage haulage roadway base plate and the drainage roadway base plate of the stage haulage level is large, water flow in the haulage roadway can quickly flow into the drainage roadway, the phenomenon that the water flow flows backwards into the stage haulage roadway cannot occur, and therefore railway haulage facilities such as a ballast bed and a switch machine are prevented from being soaked in water.

Description

Arrangement structure of stage transportation horizontal drainage roadway

Technical Field

The utility model relates to an underground mining technical field especially relates to a stage transportation level sluicing tunnel arrangement structure.

Background

In order to guarantee continuous safe production, a series of tunnels reaching an ore body need to be excavated from the ground surface to the underground so as to form a system for lifting, transporting, ventilating, supplying power, supplying air, supplying water, draining water, communicating and the like. The timely discharge of water burst from a mine is an important content of flood prevention and fighting work of the mine, and is particularly important for mines with large water burst. According to the mine topographic and geological conditions and the overall planning layout of development projects, the construction scheme of the drainage system comprises a first-stage drainage, a sectional drainage, a centralized drainage, a regional drainage and the like besides the gravity drainage. Wherein, the first stage of water drainage is to introduce the water gushing from the upper stage into the lower stage and directly drain the water from the lower stage to the ground surface.

For underground mines with large water inflow of mines, a drainage well is arranged at each mining stage, a drainage roadway is connected with a drainage system, water inflow of stopes flows into the drainage roadway through the drainage well, water inflow of the stage transportation roadway flows into the drainage roadway along a ditch, and the water inflow flows into a water sump after being precipitated by a sedimentation tank and is discharged out of the ground surface by a water pump house. For a mine adopting centralized drainage, water burst in each stage flows into a main drainage well from a drainage roadway and a ditch of a stage transportation roadway, enters a drainage roadway with horizontal transportation in a lower stage, water burst in the transportation roadway with horizontal transportation in the lower stage flows into the drainage roadway from the ditch, and all water burst in the mine flows through a sedimentation tank and a sump after being converged and is discharged out of the ground surface by a water pump house. In general, the drainage roadway and the stage haulage roadway are arranged according to the water flow gradient of 3-5 per mill. When a mining area encounters strong rainfall weather such as typhoon and rainstorm, rainwater permeates into the underground to cause that the water inflow is increased rapidly by times, so that the water level in a drainage roadway is increased rapidly, the phenomenon of water flow backflow can occur at the stage transportation level, railway transportation facilities such as a ballast bed and a point switch in the stage transportation roadway are soaked in water, the normal production of a mine is influenced, and great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned technical problem, overcome prior art's shortcoming, provide a stage transportation level sluicing tunnel arrangement structure, including sluicing well, sluicing tunnel, stage haulage tunnel, connection inclined drifts, sluicing well end connection sluicing tunnel connects inclined drifts both ends and connects stage haulage tunnel and sluicing tunnel respectively, and the bottom plate in stage haulage tunnel is higher than the bottom plate in sluicing tunnel, and the drop that forms between the two is greater than the half of sluicing tunnel height.

The utility model discloses the technical scheme who further injects is:

in the arrangement structure of the stage transportation horizontal drainage roadway, the gradient of the connecting inclined roadway is 8-20%.

In the arrangement structure of the stage transportation horizontal drainage roadway, one side of the inclined roadway is connected with a ditch which is connected with ditches in the stage transportation roadway and the drainage roadway, and the rest parts of the arrangement structure are built with pedestrian steps.

The arrangement structure of the horizontal drainage roadway for the stage transportation is characterized in that the depth of a ditch arranged on one side of the slope roadway is the same as that of a ditch in the stage transportation roadway, and the width of the ditch is 1.5-2.0 times of that of the ditch in the stage transportation roadway.

In the arrangement structure of the stage transportation horizontal drainage roadway, a half wind shield wall and a half drainage wall are arranged in the drainage roadway.

The utility model has the advantages that: the fall between the stage haulage roadway bottom plate and the drainage roadway bottom plate of the stage haulage level is large, water gushing in the haulage roadway can quickly flow into the drainage roadway, and under the condition that the water gushing amount of a stope is large, the phenomenon that water flows backwards and enters the stage haulage roadway can not occur, so that railway haulage facilities such as a roadbed and a point switch are prevented from being soaked in water.

Drawings

Fig. 1 is a schematic structural view of the present invention;

wherein: 1. a drainage well; 2. draining a roadway; 3. a stage haulage roadway; 4. connecting an inclined roadway; 5. a ditch; 6. a person walks and steps; 7. a drainage well of the stope; 8. a half wind-break wall; 9. and a half water drainage wall.

Detailed Description

The horizontal sluicing tunnel arrangement structure of stage transportation that this embodiment provided, the structure is as shown in fig. 1, including the sluicing well, the sluicing tunnel, stage transportation tunnel, connect the inclined drifts, sluicing well end connection sluicing tunnel, connect inclined drifts both ends and connect stage transportation tunnel and sluicing tunnel respectively, set up half wind-break wall in the sluicing tunnel, half sluicing wall, stage transportation tunnel's bottom plate is higher than the bottom plate in sluicing tunnel, the drop that forms between the two is greater than the half of sluicing tunnel height. The slope of the connecting inclined roadway is 8% -20%. One side of the connecting inclined roadway is provided with a ditch which is connected with ditches in the stage transportation roadway and the drainage roadway, and the rest parts of the connecting inclined roadway are built with pedestrian steps. The depth of the ditch arranged on one side of the slope roadway is the same as that of the ditch in the stage transportation roadway, and the width of the ditch is 1.5-2.0 times of that of the ditch in the stage transportation roadway.

When water gushes from the stope flow into the drainage roadway from the drainage well and the ditch of the stage haulage roadway, water flow directly flows to the sedimentation tank along the drainage roadway. Under the great condition of stope water inflow, because the bottom plate in stage haulage roadway is higher than the bottom plate in sluicing tunnel far away, consequently follow stope sluicing well, the gushing water that the sluicing well flowed into the sluicing tunnel can not flow backward and get into stage haulage roadway, under the less condition of stope water inflow, rivers will follow the ditch and directly flow to the sedimentation tank, half wind-break wall, half water-break wall that set up in the sluicing tunnel play keep out the wind, fall effects such as making an uproar.

A certain mine adopts an exploitation mode of combining a vertical shaft with a slope ramp, four stages of transportation levels of 0m, -120m, -240m and-360 m are set, a centralized drainage system is set at the transportation level of the-360 m stage and is directly drained to the ground surface in a one-section drainage mode, stope water burst of each stage above-240 m flows into drainage roadways of 0m, -120m and-240 m from stope drainage wells and stage transportation roadways of each stage respectively and flows into a main drainage roadway after being drained to the-360 m stage from the drainage wells, and stope water burst of the-360 m stage flows into the main drainage roadway from the stage transportation roadways and flows into a sedimentation tank and a sump automatically, and is directly drained to the ground surface through a high-lift water pump at a-360 m water pump room. Due to the fact that strong rainfall causes large water inflow of a mine, water in a horizontal drainage roadway is discharged to 0m, -120m and-240 m stages under a drainage well of a stope, so that the water level in the drainage roadway is higher than the bottom plate of the stage transportation roadway, the phenomenon of back flow is caused, railway transportation facilities such as a ballast bed and a switch machine in the transportation roadway are soaked in water, and the transportation and production of raw ores are influenced finally. According to the utility model discloses, set 0m, -120m, -240m, -360m stage transportation horizontally sluicing tunnel and stage transportation tunnel to the form of big drop, make the bottom plate elevation in sluicing tunnel be less than the bottom plate elevation in stage transportation tunnel, the drop that forms between the two is two-thirds of sluicing tunnel height, and adopt and connect inclined drifts and will sluicing tunnel and stage transportation tunnel and couple together, one side in connecting inclined drifts sets up the ditch, it marks time to set up the pedestrian on all the other part bottom plates, the degree of depth of ditch is the same with the ditch depth in transportation tunnel, the width is 2 times of ditch width in the transportation tunnel, the step width that the pedestrian marked time is 300mm, highly be 200mm, set up half wind-break wall in sluicing tunnel, half water-break wall plays to keep out the wind, fall the effect such as making an uproar. When the water inflow of the mine is large, the water gushing from the stope drainage well to the drainage roadway of each stage is gathered with the water gushing in the water ditch of the stage transportation roadway, the water gushing flows into the drainage well along the drainage roadway of each stage, then the water gushing from the drainage well to the drainage roadway of the-360 m stage transportation level is gathered with the water gushing from the water ditch of the-360 m stage transportation roadway, and the water gushing flows into the sedimentation tank through the drainage roadway, and the water gushing in the drainage roadway cannot flow back to enter the stage transportation roadway because the elevation of the bottom plate of the drainage roadway of each stage transportation level is far lower than that of the bottom plate of the stage transportation roadway.

In addition to the above embodiments, the present invention may have other embodiments; all the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a horizontal sluicing tunnel arrangement structure of stage transportation, includes sluicing well (1), sluicing tunnel (2), stage haulage tunnel (3), connects inclined drifts (4), sluicing well (1) end connection sluicing tunnel (2), connect inclined drifts (4) both ends and connect respectively stage haulage tunnel (3) with sluicing tunnel (2), its characterized in that: the bottom plate of the stage haulage roadway (3) is higher than the bottom plate of the drainage roadway (2), and the fall formed between the two is larger than half of the height of the drainage roadway (2).

2. The arrangement structure of the stage transportation horizontal drainage roadway according to claim 1, wherein: the gradient of the connecting inclined roadway (4) is 8% -20%.

3. The arrangement structure of the stage transportation horizontal drainage roadway according to claim 1, wherein: one side of the connecting inclined roadway (4) is provided with a ditch (5) which is connected with the stage transportation roadway (3) and the ditch (5) in the drainage roadway (2), and the rest parts of the connecting inclined roadway are built with pedestrian steps (6).

4. A stage transport horizontal drainage roadway arrangement as claimed in claim 3, wherein: the depth of a ditch (5) arranged on one side of the connecting inclined roadway (4) is the same as that of the ditch (5) in the stage transportation roadway (3), and the width of the ditch is 1.5-2.0 times of that of the ditch (5) in the stage transportation roadway (3).

5. A stage transport horizontal drainage roadway arrangement as claimed in claim 1, wherein: and a half wind-shield wall (8) and a half water-discharge wall (9) are arranged in the drainage roadway (2).