Adhesive tape inclined shaft development system and high-efficiency tunneling method thereof

Abstract

The application provides a belt inclined shaft development system and an efficient tunneling method thereof, and the system comprises a main belt inclined shaft, an auxiliary inclined ramp and a plurality of connecting passages connecting the main belt inclined shaft and the auxiliary inclined ramp; when the slope of the main belt inclined shaft is larger than the slope of the auxiliary inclined ramp, the auxiliary inclined ramp is provided with a plurality of turning bends in a direction away from the main belt inclined shaft, so as to be connected with the main belt inclined shaft at the same elevation in the connecting passage. In the tunneling, the main belt inclined shaft is divided into a belt installation section, a slag discharge section and a tunneling section from top to bottom, so that the tunneling, slag discharge and belt conveyor installation are realized in a joint construction, the construction efficiency is improved, and the construction period is shortened; in addition, the tunneling and ore mining of the development system can be simultaneously performed. The application overcomes the safety hidden danger caused by the too close distance between the upper and lower lanes in the traditional annular overlapping winding mode of the inclined ramp, solves the problems of low efficiency and long construction period, and has the advantages of high construction efficiency, good safety, good ventilation effect and the development system can play a role in ore mining in time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underground mine development system tunneling, in particular to a belt inclined shaft development system and an efficient tunneling method thereof. BACKGROUND

[0002] With the gradual exploitation of underground mineral resources, deep well mining has become a key technology affecting the development of underground mineral resources. At present, the main methods of deep well mining in underground mines are vertical shaft development, belt inclined shaft development and inclined ramp transportation. At present, when developing a gently inclined and small thickness ore body, the inclined shaft development method is generally used, among which the belt inclined shaft is the most commonly used due to its large transportation capacity and good ventilation effect. When using the belt inclined shaft development system, it is generally composed of a main belt inclined shaft for transporting ore and an auxiliary inclined ramp for transporting materials and waste rock. The auxiliary inclined ramp is connected to the main belt inclined shaft by a connecting passage for convenient ventilation and slag removal.

[0003] Due to the different slopes required by the inclined ramp and the belt inclined shaft, the maximum slope of the belt inclined shaft is larger than that of the auxiliary inclined ramp. Therefore, in actual production, when the slopes of the two are inconsistent, the auxiliary inclined ramp generally needs to be circularly overlapped to increase the length to connect with the main belt inclined shaft at the same elevation in the connecting passage. For example, the patent with application number CN201210563994.9 discloses a development method for auxiliary inclined ramp transportation with belt inclined shaft. The auxiliary inclined ramp is composed of auxiliary inclined straight sections and spiral turning sections connected alternately. The auxiliary inclined ramp is lowered to the same elevation as the belt inclined shaft through the spiral turning section at the position adjacent to the belt inclined shaft. The upper and lower overlapping parts of the auxiliary inclined ramp of this development method are generally only tens of meters or even dozens of meters apart, which is difficult to ensure the safety of the upper overlapping part of the inclined ramp, and the tunneling engineering quantity is large and the construction intensity is high. In this method, after the belt inclined shaft and the auxiliary inclined ramp are excavated, the belt conveyor is installed and laid in the belt inclined shaft. The excavation and installation procedures need to be carried out in sequence, the development system has a long construction period, and cannot play a role in time for ore mining. Moreover, when the belt inclined shaft development system continues to extend to the deep part in the future, the existing developed system will also be affected.

[0004] Therefore, it is necessary to design an improved belt inclined shaft development system and an efficient tunneling method to solve the above problems. SUMMARY

[0005] The present application aims to provide a belt inclined shaft development system and an efficient tunneling method thereof, wherein outward turning bends are arranged on the auxiliary ramp to be connected to the main belt inclined shaft at the same elevation in the connecting passage, and the main belt inclined shaft is constructed in segments to realize the simultaneous development of the development system and ore mining; and to solve the problems of low efficiency, poor safety, long construction period and inability to timely serve the ore mining in the conventional underground mine belt inclined shaft development system.

[0006] To achieve the above-mentioned purposes, the present application provides a belt inclined shaft development system and an efficient tunneling method thereof, wherein the belt inclined shaft development system comprises a main belt inclined shaft, an auxiliary ramp at the same elevation as the main belt inclined shaft, and a plurality of connecting passages connecting the main belt inclined shaft and the auxiliary ramp; when the slope of the main belt inclined shaft is greater than that of the auxiliary ramp, the auxiliary ramp is provided with a plurality of turning bends away from the main belt inclined shaft to be connected to the main belt inclined shaft at the same elevation in the connecting passage; and the turning bends are arranged away from the position of the connecting passage.

[0007] As a further improvement of the present application, the main belt inclined shaft is divided into a belt installation segment, a slag discharge segment and a tunneling segment from top to bottom to realize the simultaneous development of the development system and ore mining.

[0008] As a further improvement of the present application, the connecting passage separates the main belt inclined shaft and the auxiliary ramp into segments; and a temporary air door and a local fan ventilation device are arranged inside the connecting passage to realize the ventilation of the main belt inclined shaft and the auxiliary ramp.

[0009] An efficient tunneling method of the belt inclined shaft development system according to any one of the above, comprising the following steps:

[0010] S1, segmentally tunneling the main belt inclined shaft and the auxiliary ramp at a predetermined position, wherein the auxiliary ramp is advanced by 200-300 m from the main belt inclined shaft;

[0011] S2, arranging a plurality of connecting passages between the main belt inclined shaft and the auxiliary ramp, and connecting them at the same elevation in any connecting passage;

[0012] When the slope of the main belt inclined shaft is greater than that of the auxiliary ramp, the auxiliary ramp tunnels a plurality of turning bends away from the main belt inclined shaft to be connected to the main belt inclined shaft at the same elevation in the connecting passage;

[0013] S3, dividing the main belt inclined shaft into a belt installation segment, a slag discharge segment and a tunneling segment from top to bottom during the tunneling process to realize the deep tunneling and simultaneously arrange the belt conveyor in the belt installation segment; and outputting the waste slag from the connecting passage and the auxiliary ramp.

[0014] S4, when the development system is excavated to the ore zone and continues to extend to the deep part, the ore zone is simultaneously mined, and the belt conveyor which has been laid in the belt installation section is used to transport the ore;

[0015] S5, after the development system is excavated to the set depth, the excavation is ended, and the belt conveyor is laid in the main belt inclined shaft.

[0016] As a further improvement of the present application, the slope of the main belt inclined shaft is 0-25°, and the slope of the auxiliary slope is 0-15°.

[0017] As a further improvement of the present application, the setting of any of the turning bends avoids the position of the connecting passage, and the distance between adjacent turning bends is not less than 30-50 m.

[0018] As a further improvement of the present application, after the installation of a certain section of the belt conveyor in the belt installation section is completed, a temporary air door is used to close the upper part of the connecting passage, so as to ensure the ventilation effect.

[0019] As a further improvement of the present application, a local fan ventilation device is arranged in the connecting passage, and forced ventilation is performed to the lower part of the main belt inclined shaft or the auxiliary slope.

[0020] As a further improvement of the present application, the main belt inclined shaft is excavated by using the raise-boring method, and a mobile raise-boring machine is used for excavation, a temporary support device is arranged between the excavation section and the slag discharge section, so as to ensure the safe construction of the excavation section; the slag is discharged by using a shovel truck to shovel the waste rock into a truck in the pit, and then transported to the ground through the connecting passage and the auxiliary slope.

[0021] As a further improvement of the present application, the connecting passage is arranged every 200-300 m between the main belt inclined shaft and the auxiliary slope, and the width of the connecting passage is 6-8 m; at the communication part of the main belt inclined shaft and the connecting passage, a raise-boring machine installation chamber with a depth of 4-6 m is drilled on the other side wall of the main belt inclined shaft, so as to ensure the fixation of the mobile raise-boring machine of the excavation section of the main belt inclined shaft.

[0022] The present application has the following beneficial effects:

[0023] 1. The belt inclined shaft development system of the present application comprises a main belt inclined shaft, an auxiliary ramp at the same elevation as the main belt inclined shaft, and a plurality of connecting passages connecting the main belt inclined shaft and the auxiliary ramp; when the slope of the main belt inclined shaft is greater than that of the auxiliary ramp, the auxiliary ramp is provided with a turning bend away from the main belt inclined shaft to be connected to the main belt inclined shaft at the same elevation at the connecting passage; the turning bend is arranged away from the position of the connecting passage. By arranging the outward turning bend of the auxiliary ramp, the main belt inclined shaft and the auxiliary ramp are connected at the same elevation at the connecting passage, which is beneficial to subsequent slagging; the safety hazard caused by the close distance between the upper and lower lanes in the traditional annular overlapping winding mode of the ramp is overcome, and the belt inclined shaft development system of the present application is safer and more practical.

[0024] 2. In the high-efficiency tunneling method of the belt inclined shaft development system of the present application, the main belt inclined shaft is divided into a belt installation section, a slagging section and a tunneling section from top to bottom; when the tunneling section tunnels to the deep part, the belt installation section can arrange the belt conveyor, and at this time, the slag can be output from the connecting passage and the auxiliary ramp; the tunneling, slagging and belt conveyor installation of the main belt inclined shaft can be connected for construction, which improves the construction efficiency and greatly shortens the construction period. In addition, when the development system tunnels to the ore layer area and continues to extend to the deep part, the ore layer area can simultaneously carry out ore mining, and the belt conveyor of the belt installation section which has been arranged can play a role in ore transportation, realizing the simultaneous development of the development system and ore mining; the low efficiency, poor safety, long construction period and inability to play a role in ore mining in a timely manner in the traditional underground mine belt inclined shaft development system are solved.

[0025] 3. After the belt conveyor is installed at the upper part of the main belt inclined shaft, the upper connecting passage is closed by using a temporary air door to avoid the influence of the installation section on the ventilation effect, and the ventilation of the lower main belt inclined shaft and the auxiliary ramp is ensured; a local fan ventilation device is arranged in the connecting passage to pressurize the lower part of the main belt inclined shaft or the auxiliary ramp for forced ventilation, which further improves the ventilation effect of the underground mine and improves the air quality of the underground mine. In addition, a temporary supporting structure is arranged between the tunneling section and the slagging section to make the underground construction safer. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of the belt inclined shaft development system of the present application.

[0027] Figure 2 It is a partial view of the tunneling section of the belt inclined shaft development system of the present application.

[0028] Figure 3 It is a partial view of the slagging section of the belt inclined shaft development system of the present application.

[0029] Figure 4 This is a partial schematic diagram of the conveyor belt installation section of a conveyor belt inclined shaft development system according to the present invention.

[0030] Figure Labels

[0031] 1-Main conveyor belt inclined shaft; 11-Conveyor belt installation section; 12-Slag removal section; 13-Tunneling section; 2-Auxiliary inclined ramp; 21-Turnaround bend; 3-Connecting tunnel; 31-Temporary air door; 32-Local ventilation fan; 4-Belt conveyor; 5-Temporary support device; 6-Range drilling rig installation chamber; 7-Mobile ropeway drilling rig. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0034] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Please see Figures 1-4 As shown, a conveyor belt inclined shaft development system includes a main conveyor belt inclined shaft 1, an auxiliary inclined ramp 2 at the same elevation as the main conveyor belt inclined shaft 1, and several connecting ramps 3 connecting the main conveyor belt inclined shaft 1 and the auxiliary inclined ramp 2. When the slope of the main conveyor belt inclined shaft 1 is greater than that of the auxiliary inclined ramp 2, the auxiliary inclined ramp 2 is provided with several turnaround bends 21 in a direction away from the main conveyor belt inclined shaft 1, so as to connect with the main conveyor belt inclined shaft 1 at the same elevation in the connecting ramps. The turnaround bends 21 are all set to avoid the location of the connecting ramps 3. By setting outward turnaround bends 21 on the auxiliary inclined ramp 2, the purpose of achieving the same elevation as the main conveyor belt inclined shaft 1 in the connecting ramps 3 is achieved, overcoming the safety hazards caused by the traditional circular overlapping and bypassing method of inclined ramps due to the close distance between the upper and lower roadways. The conveyor belt inclined shaft development system of the present invention is safer and has a wide range of practical applications.

[0036] Please see Figure 1 and Figure 4As shown, the main belt inclined shaft 1 can be divided into a belt installation section 11, a slag discharge section 12 and a driving section 13 from top to bottom, realizing the simultaneous driving and ore mining of the development system. The connecting passages 3 separate the main belt inclined shaft 1 and the auxiliary inclined ramp 2 into sections; the connecting passages 3 are internally provided with temporary air doors 31 and / or local fan ventilation devices 32, so as to realize excellent ventilation effect of the main belt inclined shaft 1 and the auxiliary inclined ramp 2.

[0037] An efficient driving method of a belt inclined shaft development system, comprising the following steps:

[0038] S1, driving the main belt inclined shaft 1 and the auxiliary inclined ramp 2 at a preset position, and in the driving process, the auxiliary inclined ramp 2 always leads the main belt inclined shaft 1 by 200-300m driving, so as to prepare for the driving work of the main belt inclined shaft 1;

[0039] S2, a plurality of connecting passages 3 are arranged between the main belt inclined shaft 1 and the auxiliary inclined ramp 2, and the two are connected at the same elevation at any connecting passage 3; when the slope of the main belt inclined shaft 1 is larger than that of the auxiliary inclined ramp 2, the auxiliary inclined ramp 2 drives a plurality of turning bends 21 away from the main belt inclined shaft 1, so as to be connected with the main belt inclined shaft 1 at the same elevation at the connecting passage 3, which is beneficial to subsequent slag discharge;

[0040] S3, the main belt inclined shaft 1 is divided into a belt installation section 11, a slag discharge section 12 and a driving section 13 from top to bottom in the driving process, realizing driving to the deep part while laying the belt conveyor 4 in the belt installation section 11; waste slag is discharged from the connecting passage 3 and the auxiliary inclined ramp 2;

[0041] S4, when the development system drives to the ore bed area and continues to extend to the deep part, the ore bed area simultaneously mines the ore, and uses the belt conveyor 4 laid in the belt installation section 11 to transport the ore;

[0042] S5, after the development system drives to the set depth, the driving is ended, and the laying of the belt conveyor 4 and the mining of the ore in the main belt inclined shaft 1 continue.

[0043] Particularly, the excavation, deslagging and belt conveyor installation of the main belt inclined shaft 1 can be overlapped, which improves the construction efficiency and greatly shortens the construction period. When the development system is excavated to the ore layer area and continues to extend to the deep part, the ore layer area can simultaneously carry out ore mining, so that the development system excavation and ore mining are simultaneously carried out. The present application sets the turning bend 21 on the auxiliary slope 2, so that the auxiliary slope 2 can be at the same elevation as the main belt inclined shaft 1 at any connecting passage 3. Compared with the traditional annular overlapping winding mode of the slope, the safety is improved, and the efficiency of subsequent deslagging is improved. When the development system of the belt inclined shaft continues to extend to the deep part, the existing developed system will not be disturbed; the present application has the characteristics of high efficiency, good safety, and the development system can play a role in ore mining in time.

[0044] Specifically, the slope of the main belt inclined shaft 1 is 0-25°, and the slope of the auxiliary slope 2 is 0-15°. When the actual construction starts, the slope of the main belt inclined shaft 1 is greater than the slope of the auxiliary slope 2. As the excavation continues to the deep part, the auxiliary slope 2 is provided with a plurality of turning bends 21, so that the auxiliary slope 2 is connected to the main belt inclined shaft 1 at a uniform elevation at any connecting passage 3. After the development system is excavated to the ore layer area, the slope of the main belt inclined shaft 1 is adjusted to be consistent with the slope of the auxiliary slope 2, so as to facilitate ore mining. In addition, the positions of any turning bends 21 are away from the connecting passages 3, and the distance between adjacent turning bends 21 is not less than 30-50 m, so as to increase the safety of construction.

[0045] It should be noted that in the actual underground mining engineering, after the excavation section 13 of the development system main belt inclined shaft 1 excavates a certain distance, the remaining waste rock is deslagged by the scraper loader in cooperation with the pit truck from the deslagging section 12. After deslagging is completed, the excavation section 13 becomes a new deslagging section 12, and the original deslagging section 12 becomes a belt installation section 11 for belt installation work. Therefore, as the development system continues to be mined, the length of the belt installation section 11 is continuously extended, and the lengths of the excavation section 13 and the deslagging section 12 remain basically unchanged. In addition, a temporary support device 5 such as a hydraulic support or a temporary retaining wall is installed or built at the bottom of the new deslagging section 12, and the new excavation section 13 carries out excavation work under the shelter of the temporary support device 5, ensuring the safety of construction.

[0046] Please refer to Figure 4 As shown in the figure, after a certain section of the belt conveyor 4 of the belt installation section 11 is installed, a temporary air door 31 is used to close the upper connecting passage 3, so as to ensure the ventilation effect of the lower main belt inclined shaft 1 and the auxiliary slope 2. Local fan ventilation devices 32 can be arranged in the connecting passage 3 to pressurize and forcibly ventilate the lower part of the main belt inclined shaft 1 or the auxiliary slope 2, so as to further improve the ventilation effect of the underground mine and improve the air quality of the underground mine.

[0047] In some specific embodiments, the contact passage 3 is arranged between the main belt inclined shaft 1 and the auxiliary ramp 2 at a distance of 200-300 m, and the width of the contact passage 3 is 6-8 m.

[0048] In some specific embodiments, the return bends 21 are arranged between two adjacent contact passages 3 to adjust the height of the auxiliary ramp 2 so that the auxiliary ramp 2 is at the same elevation as the main belt inclined shaft 1 at the contact passage 3; and the number of the return bends 21 between two adjacent contact passages 3 is not limited, but the distance between two adjacent return bends is not less than 30-50 m to ensure the safety of construction and subsequent engineering.

[0049] The main belt inclined shaft 1 is excavated by the raise boring method, and the excavated section 13 is arranged with a temporary support device 5 between the excavated section 13 and the slag discharge section 12 to ensure the safety of the construction of the excavated section 13; the slag is discharged by a shovel-truck to a truck in the pit, and then transported to the ground through the contact passage 3 and the auxiliary ramp 2. The main belt inclined shaft 1 is connected to the contact passage 3, a raise boring installation chamber 6 is drilled on the other side of the wall of the main belt inclined shaft 1 to a depth of 4-6 m to ensure the fixation of the mobile raise boring machine 7 of the excavated section 13 of the main belt inclined shaft 1. After the main belt inclined shaft 1 and the auxiliary ramp 2 of the belt inclined shaft development system are completely excavated and installed, they are used as the air intake shaft during the mining stage of the ore, and form a complete permanent ventilation system with the air return shaft excavated separately.

[0050] Embodiment 1

[0051] The embodiment provides a belt inclined shaft development system and an efficient excavation method thereof. The belt inclined shaft development system comprises one main belt inclined shaft 1 for transporting ore and one auxiliary ramp 2 for transporting materials and waste rock, and the length of the main belt inclined shaft 1 is 3000 m. The contact passage 3 with a width of 6-8 m is arranged between the main belt inclined shaft 1 and the auxiliary ramp 2 at a distance of 250 m. The contact passage 3 separates the main belt inclined shaft 1 and the auxiliary ramp 2 into sections. The slope of the main belt inclined shaft 1 is 25°, and the slope of the auxiliary ramp is 15°. During excavation, the auxiliary ramp 2 is excavated with a return bend 21 to extend the length so as to be connected to the main belt inclined shaft 1 at the same elevation at the contact passage 3; and the return bends 21 are arranged away from the position of the contact passage 3.

[0052] The efficient excavation method of the belt inclined shaft development system comprises the following steps.

[0053] S1, excavating the main belt inclined shaft 1 and the auxiliary ramp 2 at a predetermined position, and excavating the main belt inclined shaft 1 by the raise boring method; during the excavation process, the auxiliary ramp 2 is excavated 200-300 m ahead of the main belt inclined shaft 1 to prepare for the excavation of the main belt inclined shaft 1;

[0054] S2, 6m wide connecting road 3 is set between main belt inclined shaft 1 and auxiliary ramp 2 every 250m, in order to ensure the fixation of mobile roof drill 7 of main belt inclined shaft 1, when connecting road 3 is excavated, 4m deep roof drill installation chamber 6 is drilled on the other side wall of main belt inclined shaft 1; during the excavation process, auxiliary ramp 2 excavates several return bends 21 away from main belt inclined shaft 1, so that it is connected with main belt inclined shaft 1 at the same elevation in connecting road 3, which is beneficial to subsequent slag discharge;

[0055] S3, main belt inclined shaft 1 is divided into belt installation section 11, slag discharge section 12 and excavation section 13 from top to bottom during the excavation process, so as to realize deep excavation while laying belt conveyor 4 in belt installation section 11; slag discharge section 12 uses shovel loader to shovel waste rock to truck in pit, truck to auxiliary ramp 2 to surface output through connecting road 3;

[0056] And after excavating for a distance and ending the slag discharge, when excavation section 13 becomes slag discharge section 12, temporary support device 5 is installed or built on the top of connecting road 3 and at the bottom of new excavation section 13, and new excavation section 13 at the bottom is excavated under the shelter of temporary support device 5; in addition, after slag discharge section 12 finishes slag discharge, it becomes belt installation section 11 to continue belt installation work;

[0057] S4, when the development system excavates to the ore zone and continues to extend to the deep part, the ore zone simultaneously carries out ore mining, and uses the belt conveyor 4 already laid in the belt installation section 11 to transport the ore;

[0058] S5, after the development system excavates to the set depth, it ends the excavation and continues to lay belt conveyor 4 in main belt inclined shaft 1 and carry out ore mining.

[0059] In order to ensure the ventilation effect, when the belt conveyor 4 of a certain section of main belt inclined shaft 1 is installed, the upper connecting road 3 is closed by temporary air door 31. After the belt inclined shaft development system is excavated and installed, the temporary air door is removed. When the ventilation effect is not good, local fan ventilation device 32 is laid in connecting road 3 to press into forced ventilation to the lower part of main belt inclined shaft 1 or auxiliary ramp 2. After the main belt inclined shaft 1 and auxiliary ramp 2 of belt inclined shaft development system are excavated and installed, they are used as air inlet shafts during ore mining stage, and form a complete permanent ventilation system with the separately excavated air return shaft, which ensures the air quality underground.

[0060] In summary, the present application provides a belt inclined shaft development system and an efficient tunneling method thereof, the development system comprising a main belt inclined shaft, an auxiliary ramp at the same elevation as the main belt inclined shaft, and a plurality of connecting passages connecting the main belt inclined shaft and the auxiliary ramp; when the slope of the main belt inclined shaft is greater than the slope of the auxiliary ramp, the auxiliary ramp is provided with a turning bend away from the main belt inclined shaft to be connected to the main belt inclined shaft at the same elevation at the connecting passage. By providing the auxiliary ramp with the outward turning bend, the purpose of the auxiliary ramp and the main belt inclined shaft being at the same elevation at the connecting passage is achieved, which is beneficial for subsequent slagging. In the efficient tunneling method of the belt inclined shaft development system, the main belt inclined shaft is divided into a belt installation section, a slagging section and a tunneling section from top to bottom, realizing tunneling, slagging and belt conveyor installation and connection construction, improving the construction efficiency and greatly shortening the construction period. In addition, when the development system is tunneling to the ore zone and continues to extend to the deep part, the ore zone can simultaneously carry out ore mining, and the belt conveyor in the belt installation section has already been laid and can play a role in ore transportation, realizing the simultaneous development of the development system and ore mining. The present application overcomes the safety hazards caused by the close distance between the upper and lower lanes in the traditional annular overlapping winding mode of the ramp, solves the problems of low efficiency, long construction period and inability to play a role in ore mining in time, and improves the safety of the belt inclined shaft development system and the efficiency of subsequent slagging. When the belt inclined shaft development system continues to extend to the deep part, the existing developed system will not be disturbed. The present application has the characteristics of high construction efficiency, good safety, good ventilation effect, and the developed system can play a role in ore mining in time.

[0061] The above examples are only used to illustrate the technical solutions of the present application and not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application.

Claims

1. A system for developing a ramp incline with a tape, characterized in that, The main belt inclined shaft, the auxiliary ramp at the same level as the main belt inclined shaft, and the several connecting passages connecting the main belt inclined shaft and the auxiliary ramp are included; when the slope of the main belt inclined shaft is greater than the slope of the auxiliary ramp, the auxiliary ramp is provided with several return bends in the direction away from the main belt inclined shaft to be connected with the main belt inclined shaft at the same level at the connecting passage; the positions of the return bends are all away from the positions of the connecting passages; The main belt inclined shaft is divided into a belt installation section, a slag discharge section and a driving section from top to bottom to realize the synchronous driving and ore mining of the development system; The main belt inclined shaft is divided into a belt installation section, a slag discharge section and a driving section from top to bottom during driving to realize the driving to the deep part and the layout of the belt conveyor in the belt installation section; the waste slag is discharged from the connecting passages and the auxiliary ramp; When the development system drives to the ore layer area and continues to extend to the deep part, the ore layer area simultaneously mines the ore and uses the belt conveyor which has been laid in the belt installation section to transport the ore; The development system drives to the set depth and ends the driving, and continues to lay the belt conveyor in the main belt inclined shaft; The main belt inclined shaft and the auxiliary ramp are divided into sections; the connecting passage is internally provided with temporary air doors and local fan ventilation devices to realize the ventilation of the main belt inclined shaft and the auxiliary ramp; The main belt inclined shaft is driven by the mobile shaft drill to be provided with temporary supporting devices between the driving section and the slag discharge section to ensure the safe construction of the driving section; the waste rock is loaded into the truck in the pit by the shovel truck, and then transported to the ground through the connecting passage and the auxiliary ramp.

2. A highly efficient tunneling method, characterized in that, The belt inclined shaft development system of claim 1 comprises the following steps: S1, the main belt inclined shaft and the auxiliary ramp are segmented and driven at the preset position, and the auxiliary ramp is driven 200-300 m ahead of the main belt inclined shaft; S2, the main belt inclined shaft and the auxiliary ramp are provided with several connecting passages, and the two are connected at the same level at any connecting passage; When the slope of the main belt inclined shaft is greater than the slope of the auxiliary ramp, the auxiliary ramp is driven to several return bends in the direction away from the main belt inclined shaft to be connected with the main belt inclined shaft at the same level at the connecting passage; S3, the main belt inclined shaft is divided into a belt installation section, a slag discharge section and a driving section from top to bottom during driving to realize the driving to the deep part and the layout of the belt conveyor in the belt installation section; the waste slag is discharged from the connecting passages and the auxiliary ramp; S4, when the development system drives to the ore layer area and continues to extend to the deep part, the ore layer area simultaneously mines the ore and uses the belt conveyor which has been laid in the belt installation section to transport the ore; S5, the development system drives to the set depth and ends the driving, and continues to lay the belt conveyor in the main belt inclined shaft.

3. The high efficiency tunneling method of the belt inclined shaft development system according to claim 2, characterized in that, The slope of the main belt inclined shaft is 0-25°, and the slope of the auxiliary ramp is 0-15°.

4. The high efficiency tunneling method of the belt inclined shaft development system according to claim 2, characterized in that, The setting of any said turn bends avoids the position of the connecting way, and the distance between adjacent said turn bends is not less than 30-50 m.

5. The high efficiency tunneling method of the belt inclined shaft development system according to claim 2, characterized in that, After the installation of a certain section of the belt conveyor of the said belt installation section, a temporary air door is used to close the upper part of the connecting way to ensure the ventilation effect.

6. The high efficiency tunneling method of the belt inclined shaft development system according to claim 2, characterized in that, A local fan ventilation device is arranged in the connecting way to perform forced ventilation to the lower part of the main belt inclined shaft or the auxiliary inclined ramp.

7. The high efficiency tunneling method of the belt inclined shaft development system according to claim 2, characterized in that, The connecting way is arranged every 200-300 m between the main belt inclined shaft and the auxiliary inclined ramp, and the width of the connecting way is 6-8 m; a 4-6 m deep raise-boring-machine installation chamber is drilled on the other side wall of the main belt inclined shaft at the communication part of the main belt inclined shaft and the connecting way to ensure the fixation of the mobile raise-boring machine of the advancing section of the main belt inclined shaft.

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