Blasting shock absorption belt with pre-buffering structure

Abstract

The utility model provides a blasting shock absorption belt with a pre-buffering structure, which comprises a main blasting area, a buffering layer and a first buffering area, a first auxiliary blasting area is arranged on the rear side of the main blasting area, a second auxiliary blasting area is arranged on the rear side of the first auxiliary blasting area, and the buffering layer is arranged between the first auxiliary blasting area and the second auxiliary blasting area. Compared with the prior art, the blasting device has the advantages that the first auxiliary blasting hole, the second auxiliary blasting hole and the buffer layer are arranged, the first auxiliary blasting hole can be exploded to form a crack through the first pre-blasting explosive, the second auxiliary blasting hole can be exploded to form a crack through the second pre-blasting explosive, and therefore vibration generated by blasting can be pre-buffered; the sponge blocks filled in the buffer layer can secondarily buffer shock waves generated by blasting, so that vibration is relieved, gaps among broken stones, flowing water and buffer holes are arranged, the shock waves can be buffered and dispersed, the flowing water can absorb and relieve the shock waves, the buffer holes absorb and weaken the shock waves for the last time, and the shock waves can be effectively relieved. Therefore, vibration generated by blasting is comprehensively buffered, and harm generated by vibration is reduced to the maximum extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of blasting vibration reduction, and particularly relates to a blasting vibration reduction belt with a pre-buffer structure. Background Technique

[0002] A blasting vibration reduction belt is an engineering technology mainly used to reduce the impact of vibration and noise on the surrounding environment during blasting operations. It usually consists of a series of energy-absorbing materials or damping structures, aiming to absorb and dissipate the shock waves generated by the explosion and reduce its potential damage to nearby buildings, equipment, and lives. Blasting vibration reduction belts are widely used in fields such as mining, civil engineering, and urban construction to ensure safety and environmental protection. Although the existing blasting vibration reduction belts can reduce vibration to a certain extent, there are still some disadvantages. For example, under strong blasting conditions, the vibration reduction effect may not be ideal, and it is difficult to completely avoid vibration transmission. The conventional countermeasure is to improve the blasting technology and adopt new blasting technologies such as small charge amounts and sectional blasting to reduce vibration. However, the disadvantage of this method is that the improved blasting technology requires a large amount of engineering experience and professional knowledge, and the technology update may lag behind. Therefore, it is hoped to propose a new structure to solve the above problems. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a blasting vibration reduction belt with a pre-buffer structure.

[0004] The utility model is realized through the following technical solutions: a blasting vibration reduction belt with a pre-buffer structure, including: a main blasting area, a buffer layer, and a first buffer area. A first secondary blasting area is provided at the rear of the main blasting area, and a second secondary blasting area is provided at the rear of the first secondary blasting area. A buffer layer is provided between the first secondary blasting area and the second secondary blasting area;

[0005] A first buffer area is provided at the rear of the second secondary blasting area, and a second buffer area is provided at the rear of the first buffer area. A number of main blasting holes are formed by the downward depression of the top of the main blasting area, a number of first secondary blasting holes are formed by the downward depression of the bottom of the first secondary blasting area, and a number of second secondary blasting holes are formed by the downward depression of the bottom of the second secondary blasting area;

[0006] Crushed stones are laid inside the first buffer area, flowing water is provided inside the second buffer area, an external water inlet mechanism is provided on the right side of the flowing water, and a number of buffer holes are formed by the downward depression of the bottom of the second buffer area.

[0007] As a preferred embodiment, the radius length of the main blasting hole is greater than the radius length of the second secondary blasting hole, and the radius length of the second secondary blasting hole is greater than the radius length of the first secondary blasting hole.

[0008] As a preferred embodiment, the main blasting hole is filled with main explosive, the first secondary blasting hole is filled with first pre-explosive, and the second secondary blasting hole is filled with second pre-explosive.

[0009] As a preferred embodiment, a number of groups of filling cavities are formed inside the buffer layer. The specifications of the several groups of filling cavities are exactly the same, and each group of filling cavities is filled with sponge blocks.

[0010] As a preferred embodiment, the depth of the first secondary explosion area is equal to the depth of the second secondary explosion area, the depth of the second secondary explosion area is less than the depth of the first buffer area, and the depth of the first buffer area is less than the depth of the second buffer area.

[0011] As a preferred embodiment, an external river is provided on the right side of the second buffer area, an external water inlet mechanism is provided on the left side of the external river, the right side of the external water inlet mechanism is connected to the external river through a water extraction pipe, and the left side of the external water inlet mechanism is connected to the second buffer area through a water inlet pipe in a through manner.

[0012] As a preferred embodiment, a return groove is formed in a penetrating manner on the left side of the bottom of the second buffer area. The return groove is of a U-shaped structure, and the right side of the return groove is connected to the left side of the external river in a through manner. During actual use, the vibration is absorbed and weakened by the cracks around the first secondary explosion hole, and the vibration continues to move backward through the buffer layer, is absorbed by the sponge blocks inside the filling cavity and weakened again, the vibration continues to move backward through the second secondary explosion area, is absorbed by the cracks around the secondary explosion hole and weakened for the third time. When the vibration continues to be transmitted backward into the first buffer area, due to the existence of several groups of gaps between the crushed stones, the vibration is absorbed and weakened for the fourth time. The vibration passes through the first buffer area and is transmitted into the second buffer area. Since the flowing water continuously flows inside the second buffer area, the flowing water absorbs the vibration and absorbs and disperses the vibration for the fifth time. After the vibration is dispersed and weakened, it enters into several groups of buffer holes along the bottom of the buffer area, so as to weaken the vibration for the sixth time, and then completely absorb and weaken the vibration generated by the blasting, and minimize the damage caused by the vibration to the greatest extent.

[0013] After adopting the above technical solutions, the beneficial effects of the present utility model are as follows: By arranging the first secondary explosion hole, the second secondary explosion hole and the buffer layer, the first pre-explosive charge can be used to blast cracks in the first secondary explosion hole, and the second pre-explosive charge can be used to blast cracks in the second secondary explosion hole, so as to pre-buffer the vibration generated by the blasting. The sponge blocks filled inside the buffer layer can buffer the shock wave generated by the blasting for the second time, so as to slow down the vibration. By arranging the crushed stones, the flowing water and the gaps between the crushed stones in the buffer holes, the shock wave can be buffered and dispersed. The flowing water can absorb and slow down the shock wave, and the buffer holes absorb and weaken the shock wave for the last time, so as to comprehensively buffer the vibration generated by the blasting. Then, the first secondary explosion area and the second secondary explosion area can be detonated first before the main blasting starts, so that cracks are generated around the first secondary explosion hole and the second secondary explosion hole, and then through the sponge blocks, the crushed stones, the flowing water and the buffer holes, the vibration generated by the blasting is comprehensively reduced, and the harm caused by the blasting vibration is minimized to the greatest extent. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of a blasting shock reduction belt with a pre-buffer structure according to the present invention.

[0016] Figure 2 It is a top view of a blasting shock reduction belt with a pre-buffer structure according to the present invention.

[0017] Figure 3 It is a schematic diagram of the internal structure of the buffer layer in a blasting shock reduction belt with a pre-buffer structure according to the present invention.

[0018] Figure 4 It is a schematic diagram of the buffer holes in a blasting shock reduction belt with a pre-buffer structure according to the present invention.

[0019] In the figure, 100 - main blasting area, 110 - first secondary blasting area, 120 - buffer layer, 130 - second secondary blasting area, 140 - first buffer area, 150 - second buffer area;

[0020] 160 - main blasting holes, 170 - first secondary blasting holes, 180 - second secondary blasting holes, 190 - crushed stones, 200 - flowing water;

[0021] 210 - filling cavity, 220 - sponge blocks, 230 - buffer holes. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] Please refer to Figures 1 to 4 : A blasting shock reduction belt with a pre-buffer structure, including: a main blasting area 100, a buffer layer 120, and a first buffer area 140. A first secondary blasting area 110 is provided at the rear of the main blasting area 100, a second secondary blasting area 130 is provided at the rear of the first secondary blasting area 110, and a buffer layer 120 is provided between the first secondary blasting area 110 and the second secondary blasting area 130;

[0024] A buffer zone one 140 is provided at the rear side of the secondary blasting area two 130, a buffer zone two 150 is provided at the rear side of the buffer zone one 140, a plurality of groups of main blasting holes 160 are formed by the top of the main blasting area 100 sinking downward, a plurality of groups of primary secondary blasting holes 170 are formed by the bottom of the secondary blasting area sinking downward, and a plurality of groups of secondary secondary blasting holes 180 are formed by the bottom of the secondary blasting area two 130 sinking downward;

[0025] Crushed stones 190 are laid inside the buffer zone one 140, flowing water 200 is provided inside the buffer zone two 150, an external water inlet mechanism is provided on the right side of the flowing water 200, and a plurality of groups of buffer holes 230 are formed by the bottom of the buffer zone two 150 sinking downward.

[0026] The radius length of the main blasting hole 160 is greater than the radius length of the secondary secondary blasting hole 180, and the radius length of the secondary secondary blasting hole 180 is greater than the radius length of the primary secondary blasting hole 170.

[0027] Main explosives are filled inside the main blasting hole 160, primary pre-explosives one are filled inside the primary secondary blasting hole 170, and primary pre-explosives two are filled inside the secondary secondary blasting hole 180.

[0028] A plurality of groups of filling cavities 210 are provided inside the buffer layer 120, the specifications of the plurality of groups of filling cavities 210 are exactly the same, and sponge blocks 220 are filled inside each group of filling cavities 210.

[0029] A plurality of groups of filling cavities 210 are provided inside the buffer layer 120, the depth of the secondary blasting area one 110 is equal to the depth of the secondary blasting area two 130, the depth of the secondary blasting area two 130 is less than the depth of the buffer zone one 140, and the depth of the buffer zone one 140 is less than the depth of the buffer zone two 150.

[0030] An external river is provided on the right side of the buffer zone two 150, an external water inlet mechanism is provided on the left side of the external river, the right side of the external water inlet mechanism is connected to the external river through a water suction pipe, and the left side of the external water inlet mechanism is connected to the buffer zone two 150 through a water inlet pipe.

[0031] A return groove is formed through the left side at the bottom of the second buffer area 150. The return groove is of a U-shaped structure, and the right side of the return groove is connected through to the left side of the external river. During actual use, the vibration is absorbed and weakened by the cracks around the first secondary blast hole 170, and the vibration continues to the rear through the buffer layer 120, where it is absorbed by the sponge blocks 220 inside the filling cavity 210 and weakened again. The vibration continues to the rear through the second secondary blast area 130, where it is absorbed by the cracks around the secondary blast holes and weakened for the third time. When the vibration continues to be transmitted to the inside of the first buffer area 140, since there are several groups of gaps between the crushed stones 190, the vibration is absorbed and weakened for the fourth time. After passing through the first buffer area 140, the vibration is transmitted to the inside of the second buffer area 150. Since the flowing water 200 continuously flows inside the second buffer area 150, the flowing water 200 absorbs the vibration and absorbs and disperses the vibration for the fifth time. After being dispersed and weakened, the vibration enters several groups of buffer holes 230 along the bottom of the buffer area, thereby weakening the vibration for the sixth time, and then absorbing and weakening the vibration generated by the blasting, minimizing the damage caused by the vibration.

[0032] Example 1: Please refer to Figures 1 to 3 , during actual use, first, after professional surveying, a blasting vibration reduction zone area is delimited, differentiating the first secondary blast area 110, the second secondary blast area 130, the buffer layer 120, the first buffer area 140, and the second buffer area 150. Then, several groups of filling cavities 210 are dug downward from the top of the buffer layer 120. Each filling cavity 210 is filled with sponge blocks 220, and the top of the filling cavity 210 is covered with soil. Then, first, a pre-explosive charge one is loaded into the first secondary blast hole 170, and a pre-explosive charge two is loaded into the second secondary blast hole 180. Then, the personnel stay away from the first secondary blast area 110 and the second secondary blast area 130 and detonate the pre-explosive charge one and the pre-explosive charge two respectively, causing several groups of cracks to form around several groups of the first secondary blast holes 170 and several groups of the second secondary blast holes 180. After completion, the first buffer area 140 is filled with crushed stones 190. Then, the external water inlet mechanism is fixedly placed between the external river and the second buffer area 150. The right side of the water extraction pipe is placed into the external river for pumping water, and the left side of the water inlet pipe is placed into the second buffer area 150, thereby introducing the flowing water 200 in the external river into the second buffer area 150. The flowing water 200 flows leftward through the bottom of the second buffer area 150 and returns to the external river through the return groove to the right, thereby forming a flowing water flow inside the second buffer area 150, and finally completing the presetting of the blasting vibration reduction zone.

[0033] Example 2: Please refer to Figures 1 to 4, when blasting operations are carried out in the main blasting area 100, first, the main explosive is loaded inside the main blast holes 160, then the personnel move away from the main blasting area 100, and the main explosive is detonated. The vibration generated in the main blasting area 100 first passes backward through the first secondary blasting area 110, and the vibration is absorbed and weakened by the fissures around the first secondary blast holes 170. The vibration continues to pass backward through the buffer layer 120 and is absorbed by the sponge blocks 220 inside the filling cavity 210 and weakened again. The vibration continues to pass backward through the second secondary blasting area 130 and is absorbed by the fissures around the secondary blast holes and weakened for the third time. When the vibration continues to be transmitted backward into the first buffer area 140, due to the existence of several groups of gaps between the crushed stones 190, the vibration is absorbed and weakened for the fourth time. After passing through the first buffer area 140, the vibration is transmitted into the second buffer area 150. Since the flowing water 200 continuously flows inside the second buffer area 150, the flowing water 200 absorbs the vibration and absorbs and disperses the vibration for the fifth time. After the vibration is dispersed and weakened, it enters into several groups of buffer holes 230 along the bottom of the buffer area (according to the characteristics of the vibration, the vibration first transmits along the solid medium), thereby weakening the vibration for the sixth time, and then absorbing and weakening the vibration generated by the blasting, and reducing the damage caused by the vibration.

[0034] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A blasting shock reduction belt with a pre-buffer structure, comprising: A main blasting area (100), a buffer layer (120) and a buffer zone one (140), characterized in that: a secondary blasting area one (110) is opened at the rear side of the main blasting area (100), a secondary blasting area two (130) is opened at the rear side of the secondary blasting area one (110), and a buffer layer (120) is provided between the secondary blasting area one (110) and the secondary blasting area two (130); A buffer zone 1 (140) is provided at the rear side of the secondary blasting zone 2 (130), a buffer zone 2 (150) is provided at the rear side of the buffer zone 1 (140), the top of the primary blasting zone (100) is concave downward to form a plurality of groups of primary blasting holes (160), the bottom of the secondary blasting zone is concave downward to form a plurality of groups of secondary blasting holes 1 (170), and the bottom of the secondary blasting zone 2 (130) is concave downward to form a plurality of groups of secondary blasting holes 2 (180); The buffer zone one (140) is paved with crushed stones (190), the buffer zone two (150) is provided with flowing water (200), an external water inlet mechanism is provided on the right side of the flowing water (200), and the bottom of the buffer zone two (150) is concave downward to form a plurality of groups of buffer holes (230).

2. The blasting shock reduction belt with a pre-buffer structure as claimed in claim 1, characterized in that: The radius length of the main blast hole (160) is greater than the radius length of the auxiliary blast hole 2 (180), and the radius length of the auxiliary blast hole 2 (180) is greater than the radius length of the auxiliary blast hole 1 (170).

3. The blasting shock-reducing belt with a pre-buffer structure as claimed in claim 2, characterized in that: The main blast hole (160) is filled with main explosive, the auxiliary blast hole 1 (170) is filled with pre-explosive 1, and the auxiliary blast hole 2 (180) is filled with pre-explosive 2.

4. The blasting shock reduction belt with a pre-buffer structure as claimed in claim 1, characterized in that: A plurality of groups of filling cavities (210) are provided inside the buffer layer (120), the specifications of the plurality of groups of filling cavities (210) are completely the same, and each group of the filling cavities (210) is filled with a sponge block (220).

5. The blasting shock reduction belt with a pre-buffer structure as claimed in claim 1, characterized in that: The depth of the secondary blasting area 1 (110) is equal to the depth of the secondary blasting area 2 (130), the depth of the secondary blasting area 2 (130) is less than the depth of the buffer area 1 (140), and the depth of the buffer area 1 (140) is less than the depth of the buffer area 2 (150).

6. The blasting shock-reducing belt with a pre-buffer structure as claimed in claim 5, characterized in that: An external river is provided on the right side of the buffer zone 2 (150), and an external water inlet mechanism is provided on the left side of the external river. The right side of the external water inlet mechanism is connected to the external river through a pumping pipe, and the left side of the external water inlet mechanism is connected to the buffer zone 2 (150) through a water inlet pipe.

7. The blasting shock-reducing belt with a pre-buffer structure as claimed in claim 6, characterized in that: A reflow groove is provided on the left side of the bottom of the buffer zone 2 (150), and the reflow groove is a U-shaped structure. The right side of the reflow groove is connected to the left side of the external river.

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