Prefabricated locatable and controllable directional isolation range buffer gun
By prefabricating a positionable and controllable directional isolation range buffer gun, the controllable directional isolation range buffer gun barrel and positioning connector are used to adjust the position of the medicine roll according to the density of joint joints of the rock body, solving the problems of irregular surrounding rock damage and inaccurate placement of the medicine roll in traditional blasting technology, realizing directional blasting and saving explosives, improving construction safety and economic benefits.
Patent Information
- Application Number
- CN202421815969.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-30
AI Technical Summary
Traditional blasting technology has problems such as irregular damage of surrounding rocks, over-excavation, poor blasting effect, difficulty in controlling blasting strength and inaccurate placement of medicine rolls in tunnel excavation, resulting in high construction costs and high safety risks.
A prefabricated positionable and controllable directional isolation range buffer gun is designed. Through the controllable directional isolation range buffer gun barrel and positioning connector, the position and isolation range of the medicine roll are adjusted according to the density of joint joints of the rock body, and the energy-dissipating materials are used to absorb explosive waves to achieve directional blasting and save explosive usage.
Directional blasting is achieved, which reduces disturbances of surrounding rocks, improves blasting effect, saves explosives and construction costs, adapts to different surrounding rock needs, and improves construction safety.
Smart Images
Figure CN223064486U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tunnel excavation by drill and blast method, in particular to a prefabricated positionable and controllable directional isolation range buffer blast. Background Technique
[0002] Blasting technology is an engineering technology that uses the energy of explosive explosion to destroy the original structure of a certain object and realizes different engineering purposes by adopting the layout of explosive charges and the initiation method. Since blasting technology can save a large amount of manpower and material resources, it has been widely used in tunnel excavation at present. However, there are the following problems: (1) The irregularity of the damage to the surrounding rock by traditional blasting often causes accidents such as overexcavation, under-excavation, and even collapse during the tunnel excavation process. The problem of tunnel overexcavation is serious, usually reaching more than 30 cm. The subsequent support is difficult, and the thickness of the secondary lining needs to be increased, resulting in an increase in the construction period and material costs; (2) The amount of explosives and the drill and blast design parameters for tunnel excavation by drill and blast method are unreasonable, and the smooth blasting effect cannot be achieved; (3) When excavating a tunnel, it is necessary to maintain the good stability of the surrounding rock, while the traditional blasting technology is difficult to control the blasting intensity, and the degree of damage and disturbance to the rock mass is large, which is not conducive to the subsequent stable support of the tunnel; (4) The over-excavation and under-excavation of the tunnel are related to the layout of the peripheral holes on the heading face and the propagation of the explosion wave. The traditional method of placing cartridges cannot achieve directional blasting of the rock mass on the heading face, which will also lead to over-excavation of the tunnel and failure to achieve the smooth blasting effect; (5) The charging position in the blast hole affects the blasting effect and the amount of explosives used. Usually, the charging spacing in the blast hole is fixed, without considering the density of fissures and joints in different regions of the rock mass in front of the heading face, and the charging position in the region with sparse fissures and joints in the blast hole is not easy to accurately position, resulting in poor blasting effect. Summary of the Invention
[0003] The object of the present utility model is to provide a prefabricated positionable and controllable directional isolation range buffer gun according to the deficiencies of the above-mentioned prior art. It includes a prefabricated controllable directional isolation range buffer gun and a positioning connector. The prefabricated controllable directional isolation range buffer gun is of a cylindrical structure. One side thereof is a hollow semi-cylinder composed of a toothed slidable outer sliding flap and an inner sliding flap, which is filled with energy-absorbing material. The other side is provided with a ring-hoop cartridge placement cylinder and a semi-cylindrical shell for hoop-fixing the cartridge, and the cartridge is loaded into the ring-hoop. Determine the positioning connector and the cartridge length according to the density of fissures and joints in the rock mass in front of the heading face and connect them. Place the prefabricated positionable and controllable directional isolation range buffer gun into the peripheral blast holes of the rock mass in the heading face, detonate the cartridge, the explosion wave propagates circumferentially, the energy-absorbing material absorbs the explosion wave and prevents it from propagating into the rock mass, and the explosion wave on the other side directly propagates into the rock mass, causing the rock mass to rupture, realizing the directional propagation and directional isolation of the explosion wave, making the rock mass to be blasted broken and the rock mass not to be blasted remain intact. At the same time, according to the different densities of fissures and joints in the rock mass in front of the heading face, accurately position the cartridge in the area with sparse fissures and joints in the blast hole, and accurately position the positioning connector in the area with dense fissures and joints, reducing the amount of explosive charge and saving costs. In addition, the sliding outer flap and the inner flap can be adjusted to reduce or enlarge the directional isolation range, improving the blasting effect.
[0004] The object of the present utility model is achieved by the following technical solutions:
[0005] A prefabricated positionable and controllable directional isolation range buffer gun, the prefabricated positionable and controllable directional isolation range buffer gun includes a prefabricated controllable directional isolation range buffer gun and a positioning connector. The prefabricated controllable directional isolation range buffer gun is of a cylindrical structure and is composed of a controllable directional isolation range buffer barrel, a cartridge and a shell. The controllable directional isolation range buffer barrels are longitudinally connected through the positioning connector, and the positioning connector is of a telescopic structure; the controllable directional isolation range buffer barrel includes a sliding flap mechanism and a cartridge placement cylinder arranged coaxially. An energy-absorbing material is filled between the sliding flap mechanism and the cartridge placement cylinder. The cartridge placement cylinder includes a semi-circular inner cylinder and a ring-hoop. The cartridge is placed inside the semi-circular inner cylinder. Ring-hoops for fixing the cartridge are provided at both ends of the semi-circular inner cylinder. The shell is semi-cylindrical and wraps the cartridge and the ring-hoop; the sliding flap mechanism is composed of an outer sliding flap and an inner sliding flap. Both the outer sliding flap and the inner sliding flap move along the outer arc of the semi-circular inner cylinder, and the inner sliding flap is arranged inside the outer sliding flap.
[0006] Threads are provided on the outside of both ends of the cartridge placement cylinder, and the threads on the outside of the cartridge placement cylinder are located outside the shell; the positioning connector includes a high-elasticity spring and two threaded connectors. The two threaded connectors are connected through the high-elasticity spring, and threads matching the threads on the outside of the cartridge placement cylinder are provided inside the threaded connectors.
[0007] The outer sliding flap includes an outer sliding flap side plate, an outer sliding flap axial end plate and an outer sliding flap radial end plate. The outer sliding flap side plate is an arc plate. The outer sliding flap radial end plates are provided at both radial ends of the outer sliding flap side plate, and the outer sliding flap axial end plate is provided at one axial end of the outer sliding flap side plate. The inner sliding flap includes an inner sliding flap side plate, an inner sliding flap axial end plate and an inner sliding flap radial end plate. The inner sliding flap side plate is an arc plate. The inner sliding flap radial end plates are provided at both radial ends of the inner sliding flap side plate, and the inner sliding flap axial end plate is provided at one axial end of the inner sliding flap side plate.
[0008] Two outer sliding flap chutes and two inner sliding flap chutes are arranged along the outer arc of the semi-circular inner cylinder. An outer sliding flap radial end plate slider that cooperates with the outer sliding flap chute is connected to the outer sliding flap radial end plate, and an inner sliding flap radial end plate slider that cooperates with the inner sliding flap chute is connected to the inner sliding flap radial end plate.
[0009] Outer sliding flap sliding teeth and outer sliding flap sliding grooves are alternately arranged along the inner side axial direction of the outer sliding flap side plate. Both the outer sliding flap sliding teeth and the outer sliding flap sliding grooves are arranged along the arc direction of the outer sliding flap side plate. Inner sliding flap sliding teeth and inner sliding flap sliding grooves are alternately arranged along the outer side axial direction of the inner sliding flap side plate. Both the inner sliding flap sliding teeth and the inner sliding flap sliding grooves are arranged along the arc direction of the inner sliding flap side plate. The outer sliding flap sliding teeth cooperate with the inner sliding flap sliding grooves, and the inner sliding flap sliding teeth cooperate with the outer sliding flap sliding grooves.
[0010] The energy dissipation material is filled in the enclosed space formed by the outer sliding flap side plate, the outer sliding flap axial end plate, the outer sliding flap radial end plate, the inner sliding flap side plate, the inner sliding flap axial end plate and the inner sliding flap radial end plate.
[0011] The size and shape of the cartridge placement hole of the cartridge placement cylinder respectively correspond to the size and shape of the cartridge.
[0012] The prefabricated positionable, controllable and directional isolation range buffer charge is placed in the peripheral blast holes of the tunnel face rock mass. The shape and size of the prefabricated positionable, controllable and directional isolation range buffer charge respectively correspond to the shape and size of the peripheral blast holes.
[0013] The positioning connector in the peripheral blast holes is located in the fracture and joint dense area of the tunnel face rock mass, and the cartridge in the peripheral blast holes is located in the fracture and joint sparse area of the tunnel face rock mass.
[0014] The advantages of the present utility model are:
[0015] (1) The energy dissipation material absorbs the blast wave and prevents it from propagating into the rock mass. On the other side, the blast wave directly propagates into the rock mass, causing the rock mass to rupture. It can achieve the directional propagation and directional isolation of the blast wave, break the rock mass that needs to be blasted, keep the rock mass that does not need to be blasted intact, and at the same time reduce the disturbance to the surrounding rock.
[0016] (2) Prefabricated positionable and controllable directional isolation range buffer blasters can adjust the positions of the positioning connectors and the buffer barrels of the controllable directional isolation range with cartridges in the blast holes according to the different densities of fissures and joints in the rock mass in front of the heading face. The explosive is accurately positioned in the area with sparse fissures and joints, and the positioning connectors are accurately positioned in the area with dense fissures and joints, reducing the amount of explosive charge and saving costs.
[0017] (3) The buffer barrels of the controllable directional isolation range can be reused, saving costs.
[0018] (4) The adjustable sliding outer and inner flaps can narrow or widen the directional isolation range, improving the blasting effect.
[0019] (5) The prefabricated positionable and controllable directional isolation range buffer blasters can be customized in different specifications according to needs, adapt to the requirements of different surrounding rocks, and also save the charging time of cartridges.
[0020] (6) The positioning connectors made of high-elastic springs have good flexibility, facilitating the charging and positioning of blast holes. Description of the Drawings
[0021] Figure 1 It is a schematic diagram of the buffer barrel of the positionable and controllable directional isolation range of the present utility model;
[0022] Figure 2 It is a schematic diagram (1) of the buffer barrel of the controllable directional isolation range of the present utility model;
[0023] Figure 3 It is a schematic diagram (2) of the buffer barrel of the controllable directional isolation range of the present utility model;
[0024] Figure 4 It is a schematic diagram of the positioning connector of the present utility model;
[0025] Figure 5 It is Figure 3 The sectional view taken along A-A in
[0026] Figure 6 It is Figure 3 The sectional view taken along B-B in
[0027] Figure 7 It is Figure 3 The sectional view taken along C-C in
[0028] Figure 8 It is a schematic diagram of the controllable directional isolation range buffer blaster of the present utility model;
[0029] Figure 9 This is a schematic diagram of the principle of isolating blast waves by a prefabricated, positionable, controllable, directionally isolated range buffer gun of the present utility model;
[0030] Figure 10 This is a schematic diagram of the relationship between the layout of the prefabricated, positionable, controllable, directionally isolated range buffer gun of the present utility model and the distribution of rock mass fissures and joints in front of the heading face;
[0031] As Figures 1 - 10 shown, the markings in the figure are respectively represented as:
[0032] 1. Prefabricated, positionable, controllable, directionally isolated range buffer gun, 2. Heading face rock mass, 3. Blast wave, 4. Crack, 5. Peripheral blast holes, 6. Dense area of fissures and joints;
[0033] 11. Controllable, directionally isolated range buffer gun barrel, 12. Cartridge, 13. Housing, 14. Positioning connector;
[0034] 111. Outer sliding flap, 112. Inner sliding flap, 113. Cartridge placement cylinder, 114. Energy dissipation material;
[0035] 1111. Outer sliding flap side plate, 1112. Outer sliding flap axial end plate, 1113. Outer sliding flap radial end plate, 1114. Outer sliding flap sliding teeth, 1115. Outer sliding flap sliding groove, 1116. Outer sliding flap radial end plate slider;
[0036] 1121. Inner sliding flap side plate, 1122. Inner sliding flap axial end plate, 1123. Inner sliding flap radial end plate, 1124. Inner sliding flap sliding teeth, 1125. Inner sliding flap sliding groove, 1126. Inner sliding flap radial end plate slider;
[0037] 1131. Hoop, 1132. Semi-circular inner cylinder, 1133. Cartridge placement hole, 1134. Outer sliding flap chute, 1135. Inner sliding flap chute, 1136. Thread;
[0038] 141. High-elastic spring, 142. Threaded connector. Detailed implementation method
[0039] The following further details the features of the present utility model and other related features through examples in combination with the accompanying drawings for the understanding of those skilled in the same industry:
[0040] Example: As Figures 1 - 10As shown in the figure, this embodiment relates to a prefabricated positionable and controllable directional isolation range buffer gun. The prefabricated positionable and controllable directional isolation range buffer gun 1 includes a prefabricated controllable directional isolation range buffer gun and a positioning connector 14. The prefabricated controllable directional isolation range buffer gun is of a cylindrical structure and mainly consists of a controllable directional isolation range buffer gun barrel 11, a cartridge 12, and a housing 13. Both the controllable directional isolation range buffer gun barrel 11 and the housing 13 are semi-cylindrical. The cartridge 12 is fixed on the controllable directional isolation range buffer gun barrel 11, and the housing 13 is installed on the controllable directional isolation range buffer gun barrel 11 and wraps the cartridge 12. The prefabricated controllable directional isolation range buffer guns (controllable directional isolation range buffer gun barrels 11) are longitudinally connected through the positioning connector 14, and the positioning connector 14 is of a telescopic structure.
[0041] As Figures 1 - 8 shown, the controllable directional isolation range buffer gun barrel 11 mainly includes a sliding flap mechanism, a cartridge placement cylinder 113, and an energy dissipation material 114. The sliding flap mechanism and the cartridge placement cylinder 113 are coaxially arranged, and the energy dissipation material 114 is filled between the sliding flap mechanism and the cartridge placement cylinder 113. In this embodiment, the energy dissipation material 114 can be rubber, granular material, liquid material, or porous material. The size and shape of the cartridge placement hole 1133 of the cartridge placement cylinder 113 respectively correspond to the size and shape of the cartridge 12 to ensure the reliability of the installation of the cartridge 12. Threads 1136 are provided on the outer sides of both ends of the cartridge placement cylinder 113. Specifically, the cartridge placement cylinder 113 includes a semi-circular inner cylinder 1132 and a hoop 1131. The semi-circular inner cylinder 1132 is used to place the cartridge 12, and the hoop 1131 is provided at both ends of the semi-circular inner cylinder 1132 and is used to fix the cartridge 12. The sliding flap mechanism consists of an outer sliding flap 111 and an inner sliding flap 112. Both the outer sliding flap 111 and the inner sliding flap 112 move along the outer arc of the semi-circular inner cylinder 1132, and the inner sliding flap 112 is arranged inside the outer sliding flap 111. By adjusting the size of the arc space between the outer sliding flap 111 and the inner sliding flap 112, the filling amount of the energy dissipation material 114 is changed, thereby achieving the purpose of reducing or enlarging the directional isolation range.
[0042] As Figures 1 - 8As shown in the figure, the outer sliding flap 111 includes an outer sliding flap side plate 1111, an outer sliding flap axial end plate 1112, and an outer sliding flap radial end plate 1113. The outer sliding flap side plate 1111 is an arc plate. One outer sliding flap radial end plate 1113 is provided at each of the two radial ends of the outer sliding flap side plate 1111, and one outer sliding flap axial end plate 1112 is provided at one axial end of the outer sliding flap side plate 1111. The inner sliding flap 112 includes an inner sliding flap side plate 1121, an inner sliding flap axial end plate 1122, and an inner sliding flap radial end plate 1123. The inner sliding flap side plate 1121 is an arc plate. One inner sliding flap radial end plate 1123 is provided at each of the two radial ends of the inner sliding flap side plate 1121, and one inner sliding flap axial end plate 1122 is provided at one axial end of the inner sliding flap side plate 1121. The energy dissipation material 114 is filled in the enclosed space formed by the outer sliding flap side plate 1111, the outer sliding flap axial end plate 1112, the outer sliding flap radial end plate 1113, the inner sliding flap side plate 1121, the inner sliding flap axial end plate 1122, and the inner sliding flap radial end plate 1123. Two outer sliding flap chutes 1134 and two inner sliding flap chutes 1135 are arranged along the outer arc of the semi-circular inner cylinder 1132. An outer sliding flap radial end plate slider 1116 is connected to the outer sliding flap radial end plate 1113, and an inner sliding flap radial end plate slider 1126 is connected to the inner sliding flap radial end plate 1123. The shape and size of the outer sliding flap radial end plate slider 1116 respectively match the shape and size of the outer sliding flap chute 1134, realizing the sliding of the outer sliding flap radial end plate 1113 on the semi-circular inner cylinder 1132. The shape and size of the inner sliding flap radial end plate slider 1126 respectively match the shape and size of the inner sliding flap chute 1135, realizing the sliding of the inner sliding flap radial end plate 1123 on the semi-circular inner cylinder 1132. The outer sliding flap side plate 1111 is alternately provided with outer sliding flap sliding teeth 1114 and outer sliding flap sliding grooves 1115 along its inner side in the axial direction, and both the outer sliding flap sliding teeth 1114 and the outer sliding flap sliding grooves 1115 are arranged along the arc of the outer sliding flap side plate 1111. The inner sliding flap side plate 1121 is alternately provided with inner sliding flap sliding teeth 1124 and inner sliding flap sliding grooves 1125 along its outer side in the axial direction, and both the inner sliding flap sliding teeth 1124 and the inner sliding flap sliding grooves 1125 are arranged along the arc of the inner sliding flap side plate 1121. The shape and size of the outer sliding flap sliding teeth 1114 respectively match the shape and size of the inner sliding flap sliding groove 1125, and the shape and size of the inner sliding flap sliding teeth 1124 respectively match the shape and size of the outer sliding flap sliding groove 1115, ensuring the mutual sliding between the outer sliding flap side plate 1111 and the inner sliding flap side plate 1121. The mutual sliding between the outer sliding flap 111 and the inner sliding flap 112 realizes the adjustment of the size of the arc-shaped space between the outer sliding flap 111 and the inner sliding flap 112.
[0043] As Figures 1 - 8As shown, the positioning connector 14 includes a highly elastic spring 141 and two threaded connectors 142. The two threaded connectors 142 are connected by the highly elastic spring 141. Threads 1136 are provided inside the threaded connectors 142, and the threads 1136 inside the threaded connectors 142 are matched with the threads 1136 outside the cartridge placement cylinder 113, realizing the longitudinal connection between the controllable directional isolation range buffer barrels 11. And by compressing the highly elastic spring 141, the length of the positioning connector 14 can be adjusted.
[0044] As Figures 9 - 10 shown, determine the lengths of the positioning connector 14 and the cartridge 12 according to the density of fissures and joints in the rock mass in front of the tunnel face and connect them. Place the prefabricated positionable and controllable directional isolation range buffer gun 1 into the peripheral blast holes 5 in the rock mass 2 of the tunnel face. Among them, the shape and size of the prefabricated positionable and controllable directional isolation range buffer gun 1 respectively correspond to the shape and size of the peripheral blast holes 5. Detonate the detonating cartridge 12, and the explosive wave 3 propagates circumferentially. The energy-absorbing material 114 absorbs the explosive wave 3 to prevent it from propagating into the rock mass. On the other side, the explosive wave 3 directly propagates into the rock mass, causing the rock mass to rupture (cracks 4 are generated), realizing the directional propagation and directional isolation of the explosive wave 3, breaking the rock mass that needs to be blasted and keeping the rock mass that does not need to be blasted intact. Among them, adjust the length of the positioning connector 14 (realized by compressing the highly elastic spring 141) so that the positioning connector 14 in the peripheral blast hole 5 is located in the fissure and joint dense area 6 of the rock mass 2 of the tunnel face; select cartridges 12 (controllable directional isolation range buffer barrels 11) of different lengths so that the cartridges 12 in the peripheral blast hole 5 are located in the fissure and joint sparse area of the rock mass 2 of the tunnel face.
[0045] The beneficial technical effects of this embodiment are as follows:
[0046] (1) The energy-absorbing material absorbs the explosive wave to prevent it from propagating into the rock mass. On the other side, the explosive wave directly propagates into the rock mass, causing the rock mass to rupture, which can realize the directional propagation and directional isolation of the explosive wave, break the rock mass that needs to be blasted and keep the rock mass that does not need to be blasted intact, and at the same time reduce the disturbance to the surrounding rock;
[0047] (2) For the prefabricated positionable and controllable directional isolation range buffer gun, according to the different densities of fissures and joints in the rock mass in front of the tunnel face, the positions of the positioning connector and the controllable directional isolation range buffer barrel equipped with cartridges in the blast hole can be adjusted. The explosive is accurately positioned in the fissure and joint sparse area, and the positioning connector is accurately positioned in the fissure and joint dense area, reducing the amount of explosive loaded and saving costs;
[0048] (3) The controllable directional isolation range buffer barrel can be reused, saving costs;
[0049] (4) The adjustable sliding outer sliding flap and inner sliding flap can be used to narrow or enlarge the directional isolation range, improving the blasting effect;
[0050] (5) The prefabricated positionable and controllable directional isolation range buffer blast can be customized in different specifications according to needs, adapt to the requirements of different surrounding rocks, and also save the cartridge loading time;
[0051] (6) The positioning connector made of high-elastic springs has good flexibility, which is convenient for cartridge loading and positioning in blast holes.
[0052] Although the above embodiments have detailed the concept and embodiments of the purpose of the present invention with reference to the drawings, those of ordinary skill in the art can recognize that various improvements and transformations can still be made to the present invention without departing from the scope defined by the claims, so they will not be elaborated one by one here.
Claims
1. A prefabricated positionable and controllable directionally isolated range buffer gun, characterized in that: The prefabricated positionable and controllable directional isolation range buffer gun includes a prefabricated controllable directional isolation range buffer gun and a positioning connector. The prefabricated controllable directional isolation range buffer gun is of a cylindrical structure and consists of a controllable directional isolation range buffer barrel, a cartridge, and a housing. The controllable directional isolation range buffer barrels are longitudinally connected through the positioning connector, and the positioning connector is of a telescopic structure. The controllable directional isolation range buffer barrel includes a sliding valve mechanism and a cartridge placement cylinder arranged coaxially. An energy dissipation material is filled between the sliding valve mechanism and the cartridge placement cylinder. The cartridge placement cylinder includes a semi-circular inner cylinder and a hoop. The cartridge is placed inside the semi-circular inner cylinder, and hoops for fixing the cartridge are provided at both ends of the semi-circular inner cylinder. The housing is semi-cylindrical and wraps the cartridge and the hoop. The sliding valve mechanism is composed of an outer sliding valve and an inner sliding valve. Both the outer sliding valve and the inner sliding valve move along the outer arc of the semi-circular inner cylinder, and the inner sliding valve is arranged inside the outer sliding valve.
2. The prefabricated positionable and controllable directional isolation range buffer gun according to claim 1, wherein: Threads are provided on the outer sides of both ends of the cartridge placement cylinder, and the threads on the outside of the cartridge placement cylinder are located outside the housing. The positioning connector includes a highly elastic spring and two threaded connectors. The two threaded connectors are connected through the highly elastic spring, and threads matching the threads on the outside of the cartridge placement cylinder are provided inside the threaded connectors.
3. A prefabricated positionable and controllable directional isolation range buffer gun as claimed in claim 1, characterized in that: The outer sliding valve includes an outer sliding valve side plate, an outer sliding valve axial end plate, and an outer sliding valve radial end plate. The outer sliding valve side plate is an arc plate, and the outer sliding valve radial end plates are provided at both radial ends of the outer sliding valve side plate. The outer sliding valve axial end plate is provided at one axial end of the outer sliding valve side plate. The inner sliding valve includes an inner sliding valve side plate, an inner sliding valve axial end plate, and an inner sliding valve radial end plate. The inner sliding valve side plate is an arc plate, and the inner sliding valve radial end plates are provided at both radial ends of the inner sliding valve side plate. The inner sliding valve axial end plate is provided at one axial end of the inner sliding valve side plate.
4. A prefabricated positionable and controllable directional isolation range buffer gun according to claim 3, characterized in that: Two outer sliding valve chutes and two inner sliding valve chutes are arranged along the outer arc of the semi-circular inner cylinder. An outer sliding valve radial end plate slider matching the outer sliding valve chute is connected to the outer sliding valve radial end plate, and an inner sliding valve radial end plate slider matching the inner sliding valve chute is connected to the inner sliding valve radial end plate.
5. The prefabricated positionable and controllable directional isolation range buffer gun according to claim 3, characterized in that: Outer sliding valve sliding teeth and outer sliding valve sliding grooves are alternately provided along the inner axial direction of the outer sliding valve side plate. Both the outer sliding valve sliding teeth and the outer sliding valve sliding grooves are arranged along the arc of the outer sliding valve side plate. Inner sliding valve sliding teeth and inner sliding valve sliding grooves are alternately provided along the outer axial direction of the inner sliding valve side plate. Both the inner sliding valve sliding teeth and the inner sliding valve sliding grooves are arranged along the arc of the inner sliding valve side plate. The outer sliding valve sliding teeth match the inner sliding valve sliding grooves, and the inner sliding valve sliding teeth match the outer sliding valve sliding grooves.
6. The prefabricated positionable and controllable directional isolation range buffer gun according to claim 3, wherein: The energy dissipation material is filled in the enclosed space formed by the outer sliding valve side plate, the outer sliding valve axial end plate, the outer sliding valve radial end plate, the inner sliding valve side plate, the inner sliding valve axial end plate, and the inner sliding valve radial end plate.
7. A prefabricated positionable and controllable directionally isolated range buffer gun according to claim 1, characterized in that: The size and shape of the cartridge placement hole of the cartridge placement cylinder respectively correspond to the size and shape of the cartridge.
8. A prefabricated positionable and controllable directionally isolated range buffer gun as claimed in claim 1, characterized in that: The prefabricated positionable and controllable directional isolation range buffer charge is placed in the peripheral blast holes of the tunnel face rock mass, and the shape and size of the prefabricated positionable and controllable directional isolation range buffer charge respectively correspond to the shape and size of the peripheral blast holes.
9. A prefabricated positionable and controllable directionally isolated range buffer gun according to claim 8, characterized in that: The positioning connector in the peripheral blast holes is located in the fracture and joint dense area of the tunnel face rock mass, and the cartridge in the peripheral blast holes is located in the fracture and joint sparse area of the tunnel face rock mass.