Rapid and efficient tunneling system for large-section hard rock roadway
By introducing an automated cartridge barrel propulsion device into the large-section hard rock tunnel excavation system, the problems of multiple-stage detonation of blastholes and manual placement of explosives have been solved, enabling rapid and efficient excavation of hard rock tunnels and improving work efficiency and safety.
Patent Information
- Application Number
- CN202422178382.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-09-05
AI Technical Summary
In the excavation of large-section hard rock tunnels, the drilling and blasting method requires a large number of blastholes and they need to be detonated in batches. The placement of manual explosives is cumbersome, resulting in low work efficiency and high labor intensity for workers. Traditional mechanical excavation is slow, making it difficult to achieve fast and efficient excavation.
A fast and efficient excavation system for large-section hard rock tunnels is adopted, which includes a base, a support frame, a sliding frame, a rotating frame and a propulsion mechanism. The motor drives the cylindrical rod and the electric push rod to realize the automatic propulsion of the charge tube, automatically setting the explosives into the drill hole, reducing manual operation.
It realizes the automated setting of explosives, reduces the workload of staff, improves work efficiency and safety, and ensures the rapid and efficient excavation of large-section hard rock tunnels.
Smart Images
Figure CN223469266U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mine exploitation technical field especially relates to a big section hard rock roadway rapid and efficient tunneling system. BACKGROUND
[0002] At present, there are two operation modes for rock roadway tunneling in China: one is drill and blast method construction, and the other is mechanical tunneling construction. The mechanical tunneling construction has obvious effect on soft rock roadway tunneling, but the speed is slow for medium-hard rock roadway tunneling, and the pick of the tunneling machine is consumed greatly, and the dust generated is high. Therefore, drill and blast method is often used for medium-hard rock roadway tunneling. However, due to the fact that there is only one free surface for roadway tunneling blasting operation, the rock clamping effect is large, and the blasting operation condition is poor. In addition, the traditional small cycle wedge slotting method causes the problems of slow speed in footage and high labor intensity of workers in hard rock roadway.
[0003] Engineering practice shows that for large section hard rock roadway tunneling, the drill and blast method construction has a large number of blast holes, and is limited by the number of detonators detonated at a time. Therefore, it must be detonated in several times, and cannot be detonated at one time for full section. At present, the monthly footage of large section hard rock blasting is not more than 40 meters. Therefore, the rapid tunneling technology becomes the first problem to be solved. The TBM tunneling is combined with drilling and blasting for large section hard rock roadway tunneling. First, a small TBM tunneling machine is used to rapidly tunnel in the middle of the roadway section to form a certain range of groove cavity. Then, drilling and blasting are used to expand the groove cavity to the designed roadway section to achieve the effect of safe, rapid and efficient tunneling. After the drilling of the large section hard rock roadway is completed, the placement of explosives is mainly carried out by manual operation. Since the area of the large section hard rock roadway is large, the manual placement of explosives is complicated, and the work efficiency is low.
[0004] Therefore, we propose a large section hard rock roadway rapid and efficient tunneling system to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the problems in the prior art and provides a large section hard rock roadway rapid and efficient tunneling system.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A large section hard rock roadway rapid and efficient tunneling system, comprising a base, a support frame body is vertically fixed on the upper side of the base, a sliding frame body is slidably arranged on the support frame body, a rotating frame body is rotatably arranged on the top of the sliding frame body, and a cylindrical rod is rotatably arranged on the top of the rotating frame body.
[0008] One end of the cylindrical rod is fixed with a rotating arm, a sliding arm is slidably arranged on the rotating arm, one end of the sliding arm is provided with a storage bin, and a plurality of medicine bag barrels are arranged in the storage bin.
[0009] Preferably, the side of the support frame body is vertically fixed with an oil cylinder, and the telescopic end of the oil cylinder faces upwards and is fixedly connected with the top of the sliding frame body.
[0010] Preferably, the sliding frame body is provided with an inner cavity, the rotating frame body can be rotatably arranged in the inner cavity of the sliding frame body, the rotating frame body can be rotated to a vertical state, and the rotating frame body is fixedly connected with the sliding frame body through a pin rod.
[0011] Preferably, the top of the rotating frame body is fixed with a motor for driving the cylindrical rod to rotate.
[0012] Preferably, a first electric push rod is fixed in parallel on the rotating arm, and the telescopic end of the first electric push rod is fixedly connected with the sliding arm.
[0013] Preferably, one end of the rotating frame body is fixed with a circular ring corresponding to one end of the cylindrical rod, the circular ring is coaxially aligned with the cylindrical rod, a resisting rod is fixed vertically on the rotating arm, the circular ring is provided with an annular groove, and one end of the resisting rod abuts against and slidably matches the annular groove.
[0014] Preferably, the pushing mechanism comprises a frame, one end of the sliding arm is bent and provided with a circular hole, the frame is fixedly connected with the sliding arm and is matched with the circular hole, the storage bin is fixedly arranged on the frame, a second electric push rod is fixed at one end of the frame away from the sliding arm, and the second electric push rod is used for pushing the medicine bag barrel out of the circular hole.
[0015] Compared with the prior art, the beneficial effects of the present application are:
[0016] The base, the support frame body, the sliding frame body, the rotating frame body, the rotating arm, the sliding arm and the pushing mechanism are arranged, so that the pushing operation of the medicine bag barrel is realized, the plurality of medicine bag barrels are sequentially arranged in the plurality of drilled holes, the setting of the explosives is realized, the working strength of the staff is effectively reduced, the working efficiency is improved, the rotating arm can realize the circumferential movement, the plurality of explosives can be arranged in a ring shape, and the working efficiency and safety are high. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor;
[0018] Figure 1It is the first axonometric view of the utility model;
[0019] Figure 2 It is the second axonometric view of the utility model;
[0020] Figure 3 It is the third axonometric view of the utility model;
[0021] Figure 4 It is the internal structure schematic view of the storage bin of the utility model;
[0022] Figure 5 It is the structure schematic view of the rotating frame body folding into the inner cavity of the sliding frame body of the utility model;
[0023] Figure 6 It is the structure schematic view of the blast hole of the utility model;
[0024] Figure 7 It is the structure schematic view of the TBM tunneling machine of the utility model.
[0025] In the figure: 1, base; 2, support frame body; 3, sliding frame body; 4, rotating frame body; 5, cylindrical rod; 6, rotating arm; 7, sliding arm; 8, storage bin; 9, oil cylinder; 10, first electric push rod; 11, circular ring; 12, abutting rod; 13, frame; 14, circular hole; 15, second electric push rod; 16, cartridge; 17, blast hole; 18, TBM tunneling machine; 19, large-section hard rock roadway. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0027] In the description of the utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.
[0028] Reference Figures 1-7The utility model provides a kind of large section hard rock roadway rapid and efficient excavation system, including base 1, and base 1 provides stable support platform for the component being arranged on it.Base 1 upside vertical fixed support frame body 2 is slidably provided with sliding frame body 3 on support frame body 2, and sliding frame body 3 top rotation is equipped with rotating frame body 4, and the top of rotating frame body 4 is rotationally equipped with cylindrical rod 5;
[0029] One end of cylindrical rod 5 is fixed with rotating arm 6, and sliding arm 7 is slidably provided on rotating arm 6, and one end of sliding arm 7 is equipped with storage warehouse 8, and a plurality of medicine bag tubes 16 are loaded in storage warehouse 8, and the advancing mechanism for pushing medicine bag tube 16 is slidably provided on sliding arm 7.
[0030] For the above example, those skilled in the art should know that, when implementing the above technical solution, an electric hydraulic rod can be matched and installed between the sliding frame body 3 and the rotating frame body 4, which can realize the rotation adjustment of the rotating frame body 4.
[0031] For the above example, those skilled in the art should know that, when implementing the above technical solution, the storage warehouse 8 is provided with a charging port, which is convenient for placing a plurality of medicine bag tubes 16.
[0032] For the above example, those skilled in the art should know that, when implementing the above technical solution, a plurality of universal wheels can be matched and installed at the bottom of the base 1, and a plurality of telescopic ground anchors can be installed at the side edge of the base 1, to realize anchoring with the ground, that is, to realize the stability of the base 1 and the above-mentioned components, and the height of the four ground anchors can be adjusted to realize the horizontal degree adjustment of the base 1.
[0033] As a technical optimization scheme of the utility model, the side edge of the support frame body 2 is vertically fixed with an oil cylinder 9, and the telescopic end of the oil cylinder 9 faces upwards and is fixedly connected with the top of the sliding frame body 3. The oil cylinder 9 can control the sliding frame body 3 to move up and down accurately.
[0034] As a technical optimization scheme of the utility model, the sliding frame body 3 is provided with an inner cavity, the rotating frame body 4 can be rotationally retracted and arranged into the inner cavity of the sliding frame body 3, the rotating frame body 4 can be rotated to a vertical state, and is fixedly connected with the sliding frame body 3 through a pin rod. The rotating frame body 4 can be stably fixed through the pin rod.
[0035] As a technical optimization scheme of the utility model, the top of the rotating frame body 4 is fixed with a motor for driving the rotation of the cylindrical rod 5, and the motor drives the cylindrical rod 5 to rotate accurately, that is, drives the rotating arm 6 and the corresponding sliding arm 7 to rotate accurately in the direction.
[0036] For the above example, those skilled in the art should know that, when implementing the above technical solution, a gear box matched with the motor can be arranged on the rotating frame body 4, which can increase the torque and effectively improve the load of the cylindrical rod 5.
[0037] As a technical optimization scheme of the utility model, the first electric push rod 10 is fixed on the rotating arm 6, and the telescopic end of the first electric push rod 10 is fixedly connected with the sliding arm 7. The first electric push rod 10 can drive the sliding arm 7 to move accurately.
[0038] As a technical optimization scheme of the utility model, the rotating frame body 4 is fixed with a ring 11 at one end of the cylindrical rod 5, the ring 11 is coaxially aligned with the cylindrical rod 5, the rotating arm 6 is vertically fixed with a stopper 12, the ring 11 is provided with an annular groove, one end of the stopper 12 abuts and slides with the annular groove, and the ring 11 plays an auxiliary stable supporting role.
[0039] As a technical optimization scheme of the utility model, the advancing mechanism comprises a frame 13, one end of the sliding arm 7 is bent and provided with a circular hole 14, the frame 13 is fixedly connected with the sliding arm 7 and is aligned and matched with the circular hole 14, the storage bin 8 is fixedly arranged on the frame 13, and the storage bin 8 is matched with an electric rod, which is used for pushing the medicine bag cylinder 16 into the frame 13. The frame 13 is fixed with a second electric push rod 15 at one end away from the sliding arm 7, and the second electric push rod 15 is used for pushing the medicine bag cylinder 16 out of the circular hole 14. Through control, the circular hole 14 can be aligned with a plurality of pre-drilled drill holes on the large-section hard rock roadway 19 in turn, so that the medicine bag cylinder 16 is conveniently pushed into the drill hole. That is, the second electric push rod 15 can push the medicine bag cylinder 16 in the frame 13 into the drill hole.
[0040] For the above example, those skilled in the art should know that, in the implementation of the above technical scheme, the side edge of the sliding arm 7 close to the circular hole 14 can be installed with an infrared sensing positioning device, so as to align the circular hole 14 with the drill hole.
[0041] For the above example, those skilled in the art should know that, in the implementation of the above technical scheme, the medicine bag cylinder 16 is matched with a detonator for detonation after being pushed into the drill hole.
[0042] In the utility model, the working principle of the device is as follows:
[0043] Firstly, the base 1 is moved to the corresponding position, that is, moved to the side position of the large-section hard rock tunnel 19, then the rotating frame body 4 is unfolded to the vertical state and fixed, so that the rotating arm 6 is parallel to the large-section hard rock tunnel 19, and a plurality of drill holes are drilled in the large-section hard rock tunnel 19 in advance, and the plurality of drill holes are arranged in a ring shape. Then, through the demand control oil cylinder 9, the first electric push rod 10 and the motor, the oil cylinder 9 controls the sliding frame body 3 to move accurately, the first electric push rod 10 drives the sliding arm 7 to slide accurately, and the motor drives the cylindrical rod 5 to rotate accurately. Finally, through the above adjustment, the rotating arm 6 and the corresponding sliding arm 7 can be adjusted in the direction, so that the circular hole 14 is aligned to a drill hole, and the drill hole is one of the ring-shaped holes formed by the plurality of drill holes. Then, the second electric push rod 15 is started, and the second electric push rod 15 accurately pushes the cartridge case 16 in the frame 13 into the drill hole. Finally, the placement of the explosive is completed. The rotating arm 6 of the device rotates in a circular motion through the motor, so that the circular hole 14 can be aligned with the drill hole in turn, and the subsequent cartridge case 16 setting operation is performed, which effectively reduces the working intensity of the workers and improves the working efficiency and safety.
[0044] When the rotating arm 6 of the device rotates, it does not rotate in a complete circular trajectory, that is, it can rotate from one side of the support frame body 2 to the other side, and it can be reset after rotating, which can effectively avoid the collision between the second electric push rod 15 and the support frame body 2. When the device is not in use, the rotating frame body 4 can be rotated into the sliding frame body 3, thereby reducing the space occupation and facilitating the movement, carrying and placement of the overall device.
[0045] The above operation is to set the tunneling position in the center of the large-section hard rock tunnel 19 in advance, and a TBM tunneling machine 18 with a diameter of 2.5-3.5 meters is used to tunnel the central cavity; after the TBM tunneling machine 18 advances a certain depth, a safe distance for construction is ensured, and drill holes, that is, blast holes 17, are drilled in other areas of the tunnel face, the blast holes 17 include auxiliary holes and peripheral holes, the auxiliary holes and the peripheral holes are drilled at the same time, the number is sequentially increased according to the auxiliary holes-peripheral holes, the hole depth is determined according to the TBM footage, and the hole depth is 4.5-10.0m; the auxiliary holes adopt the form of sectional charging of slotted cartridges, and the peripheral holes adopt the design of smooth blasting parameters, the explosive is filled into the blast holes 17, the explosive filling amount is sequentially reduced according to the auxiliary holes-peripheral holes, the two sections of explosive in the same blast hole 17 are separated by stemming, and the multi-section explosive is penetrated by the detonating cord, the blast hole 17 is plugged with yellow mud, and the plugging length is about 1 / 4 of the length of the blast hole 17; when the explosive is detonated, the auxiliary holes-peripheral holes are detonated at the same time, the broken rocks are cleaned after blasting, the surrounding of the tunnel is trimmed, and a regular large-section tunnel is formed again. In this way, the rapid and efficient tunneling operation of the large-section hard rock tunnel 19 is realized. Moreover, the cavity generated by the TBM tunneling machine 18 provides a large free face for the cut hole blasting, reduces the interaction of the surrounding rock, and greatly reduces the influence of blasting vibration on the surrounding environment.
[0046] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A large-section hard rock roadway rapid and efficient tunneling system comprising a base (1), characterized in that, The base (1) is vertically fixed with a support frame (2) on the top, the support frame (2) is slidably provided with a sliding frame (3), the sliding frame (3) is rotatably provided with a rotating frame (4) on the top, and the rotating frame (4) is rotatably provided with a cylindrical rod (5) on the top. One end of the cylindrical rod (5) is fixed with a rotating arm (6), the rotating arm (6) is slidably provided with a sliding arm (7), one end of the sliding arm (7) is provided with a storage bin (8), a plurality of medicine bag barrels (16) are arranged in the storage bin (8), and a propelling mechanism for pushing the medicine bag barrels (16) is arranged on the sliding arm (7).
2. The large-section hard rock roadway rapid and efficient tunneling system according to claim 1, characterized in that, The side edge of the support frame (2) is vertically fixed with an oil cylinder (9), and the telescopic end of the oil cylinder (9) faces upwards and is fixedly connected with the top of the sliding frame (3).
3. A fast and efficient excavation system for large-section hard rock tunnels according to claim 1, characterized in that: The sliding frame (3) is provided with an inner cavity, the rotating frame (4) can be rotatably arranged in the inner cavity of the sliding frame (3), the rotating frame (4) can be rotated to a vertical state, and the rotating frame (4) is fixedly connected with the sliding frame (3) through a pin rod.
4. The large-section hard rock roadway rapid and efficient tunneling system according to claim 1, characterized in that, The top of the rotating frame (4) is fixed with a motor for driving the cylindrical rod (5) to rotate.
5. The large-section hard rock roadway rapid and efficient tunneling system according to claim 1, characterized in that, The rotating arm (6) is fixed with a first electric push rod (10) in parallel, and the telescopic end of the first electric push rod (10) is fixedly connected with the sliding arm (7).
6. The large-section hard rock roadway rapid and efficient tunneling system according to claim 1, characterized in that, One end of the rotating frame (4) is fixed with a circular ring (11) corresponding to the cylindrical rod (5), the circular ring (11) is coaxially aligned with the cylindrical rod (5), a resisting rod (12) is fixedly arranged on the rotating arm (6) in perpendicular, the circular ring (11) is provided with an annular groove, and one end of the resisting rod (12) abuts against and slidably matches the annular groove.
7. The large-section hard rock roadway rapid and efficient tunneling system according to claim 1, characterized in that, The propelling mechanism comprises a frame (13), one end of the sliding arm (7) is bent and provided with a circular hole (14), the frame (13) is fixedly connected with the sliding arm (7) and is aligned and matched with the circular hole (14), the storage bin (8) is fixedly arranged on the frame (13), one end of the frame (13) away from the sliding arm (7) is fixed with a second electric push rod (15), and the second electric push rod (15) is used for pushing the medicine bag barrel (16) out of the circular hole (14).