Underwater deep foundation pit reef rock blasting layered detonation structure
By adopting a layered detonation structure and a segmented detonation method in underwater blasting technology, the problem that it is difficult to reach a reef breaking depth of more than 5m at one time with existing technology has been solved, and a depth of 7m to 8m can be achieved in one blast, saving money. construction time and resources.
Patent Information
- Application Number
- CN202421203119.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The existing underwater blasting technology is difficult to reach a reef crushing depth of more than 5m at one time, resulting in many processes and time-consuming and labor-intensive.
It adopts a layered detonation structure for underwater deep foundation pit reef blasting, and adopts a segmented detonation method by setting up two sets of detonation tubes. The upper charge explodes to form a new air surface, and the lower charge detonates to use the new air surface to better break the reef.
It is possible to achieve a reef excavation depth of 7m to 8m in one blast, saving manpower, material resources and construction time, and achieving satisfactory crushing effects.
Smart Images
Figure CN222378931U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of underwater blasting, in particular to a layered detonation structure for underwater deep foundation pit reef rock blasting. Background Art
[0002] It is very difficult to achieve a rock crushing depth of more than 5m in one blasting of underwater reefs. At present, if you want to excavate underwater rock layers greater than 5m at a time, you can only use multiple blasting excavation. Most of the time, only about 5m can be excavated in one blasting, and the remaining rock layers need to be blasted again. In other words, reefs greater than 5m need to wait for the first blasting excavation and cleaning before drilling and blasting again on the new rock surface to reach the excavation depth required for construction. Therefore, the current blasting method has many processes and is time-consuming and labor-intensive. Utility Model Content
[0003] The utility model aims to provide a layered detonation structure for underwater deep foundation pit reef rock blasting to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a layered detonation structure for underwater deep foundation pit reef blasting, comprising a first detonator and a second detonator, wherein the first detonator and the second detonator are both composed of a cylindrical shell wrapping a detonating cap; the first detonator and the second detonator are arranged in alignment with each other, and a sealing sleeve is arranged between the first detonator and the second detonator; a first detonating cord is arranged at the end of the first detonator, and a second detonating cord is arranged at the end of the second detonator, the first detonating cord and the second detonating cord are connected to each other through a transfer tube, and the first detonating cord, the second detonating cord and the transfer tube are all located inside the sealing sleeve.
[0005] Preferably, the sealing sleeve is configured as a semicircular ring structure, with two groups arranged opposite to each other; a sealing gasket is provided on the connecting surface of the sealing sleeve, and the sealing gasket is made of rubber material; a guide head is provided at the end of the first detonator tube facing away from the second detonator tube, and the guide head is configured as a truncated cone structure.
[0006] Preferably, both ends of the sealing sleeve are provided with a clamping seat respectively; the opposite ends of the first detonating tube and the second detonating tube are provided with grooves respectively, and the clamping seats at both ends of the sealing sleeve are respectively clamped in the grooves of the first detonating tube and the second detonating tube.
[0007] Preferably, a plurality of groups of first fixing blocks are arranged on the side of the first detonator tube, and a plurality of groups of second fixing blocks are correspondingly arranged on the side of the second detonator tube; a first connecting rod is transversely arranged on the first fixing block, and a second connecting rod is correspondingly arranged on the second fixing block; the first connecting rod and the second connecting rod are aligned with each other and fixedly connected by a connecting tube.
[0008] Preferably, the first connecting rod and the second connecting rod are both configured as screws, and the thread directions of the two surfaces are opposite; the two ends of the connecting tube are respectively connected to the first connecting rod and the second connecting rod through threads, and a torsion tube is provided on the outside of the connecting tube, and friction patterns are provided on the outside of the torsion tube.
[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the detonation structure provided by the utility model, by setting two groups of detonating tubes and adopting a segmented detonation method, after the upper charge explodes, the rock between the blast holes is broken and moves to form a new air surface, and then the lower charge is detonated; according to the rock explosion theory, due to the action of the lower blasting charge, a new air surface is formed, so that the reefs below 5m can be better crushed, thereby achieving a satisfactory crushing effect, and a reef excavation depth of 7m to 8m can be reached in one blast, saving a lot of manpower, material resources and construction time. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the structure of the utility model;
[0011] Figure 2 It is a schematic diagram of the assembly of the utility model;
[0012] Numbers in the figure: 1. first detonator; 11. first fixing block; 12. first connecting rod; 13. first detonating tube; 14. guide head; 2. second detonator; 21. second fixing block; 22. second connecting rod; 23. second detonating tube; 3. sealing sleeve; 31. holder; 32. sealing gasket; 4. connecting tube; 41. twist tube; 5. adapter tube. DETAILED DESCRIPTION
[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0014] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0015] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0016] See also Figure 1-2 The utility model provides a technical solution: a layered detonation structure for underwater deep foundation pit reef blasting, comprising a first detonator 1 and a second detonator 2, wherein the first detonator 1 and the second detonator 2 are both composed of a cylindrical shell wrapping a detonating cap; the first detonator 1 and the second detonator 2 are arranged in alignment with each other, and a sealing sleeve 3 is arranged between the first detonator 1 and the second detonator 2; a first detonating cord 13 is arranged at the end of the first detonator 1, and a second detonating cord 23 is arranged at the end of the second detonator 2, the first detonating cord 13 and the second detonating cord 23 are connected to each other through a transfer tube 5, and the first detonating cord 13, the second detonating cord 23 and the transfer tube 5 are all located inside the sealing sleeve 3.
[0017] Furthermore, the sealing sleeve 3 is configured as a semicircular ring structure, and two groups are arranged opposite to each other; a sealing gasket 32 is provided on the connecting surface of the sealing sleeve 3, and the sealing gasket 32 is made of rubber material; a guide head 14 is provided at one end of the first detonator tube 1 facing away from the second detonator tube 2, and the guide head 14 is configured as a truncated cone structure.
[0018] Furthermore, the two ends of the sealing sleeve 3 are respectively provided with a clamping seat 31; the opposite ends of the first detonating tube 1 and the second detonating tube 2 are respectively provided with grooves, and the clamping seats 31 at both ends of the sealing sleeve 3 are respectively clamped in the grooves of the first detonating tube 1 and the second detonating tube 2.
[0019] Furthermore, a plurality of groups of first fixing blocks 11 are arranged on the side of the first detonator tube 1, and a plurality of groups of second fixing blocks 21 are correspondingly arranged on the side of the second detonator tube 2; a first connecting rod 12 is transversely arranged on the first fixing block 11, and a second connecting rod 22 is correspondingly arranged on the second fixing block 21; the first connecting rod 12 and the second connecting rod 22 are aligned with each other and fixedly connected by a connecting tube 4.
[0020] Furthermore, the first connecting rod 12 and the second connecting rod 22 are both configured as screws, and the thread directions of the two surfaces are opposite; the two ends of the connecting tube 4 are respectively connected to the first connecting rod 12 and the second connecting rod 22 through threads, and a torsion tube 41 is provided on the outside of the connecting tube 4, and friction patterns are provided on the outside of the torsion tube 41.
[0021] Working principle: In actual use, the first detonator 1 is loaded into the blasthole through the guide head 14. The truncated cone-shaped guide head 14 facilitates the loading of the detonator, and the second detonator 2 is loaded into the blasthole together. During detonation, the second detonator 2 on the upper layer will detonate first, and the first detonator 1 on the lower layer will detonate for a certain period of time after the detonation; after the explosion of the second detonator 2 on the upper layer, the rock between the blastholes will break and move, thereby forming a new free surface, and then the first detonator 1 on the lower layer will detonate. According to the rock explosion theory, the first detonator 1 on the lower layer has a new free surface, so it can better crush the reefs below 5m, thereby achieving a satisfactory crushing effect, and a single blast can reach a reef excavation depth of 7m to 8m.
[0022] The first detonating tube 13 and the second detonating tube 23 are connected to each other through the transfer tube 5, and all three are inside the sealing sleeve 3; the sealing sleeve 3 has two functions, one is to protect the internal structure from interference from the external environment, and the other is to act as an inert medium between the two groups of detonating tubes to avoid sympathetic explosion. The sealing sleeve 3 adopts a semicircular ring structure connected to each other, and the end is clamped in the groove of the first detonating tube 1 and the second detonating tube 2 through the clamping seat 31, and the installation method is convenient and stable.
[0023] The first detonating tube 1 and the second detonating tube 2 are connected by the first connecting rod 12 and the second connecting rod 22. The first connecting rod 12 and the second connecting rod 22 are fixed in the connecting tube 4 by a threaded structure, and the opposite threaded structure can achieve the effect of simultaneously screwing in and out when the connecting tube 4 is twisted; the friction pattern on the twisting tube 41 is arranged to facilitate the user to twist the connecting tube 4.
[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A layered detonation structure for underwater deep foundation pit reef rock blasting, characterized in that: The invention comprises a first detonator (1) and a second detonator (2), wherein the first detonator (1) and the second detonator (2) are both composed of a cylindrical shell enclosing a detonating cap; the first detonator (1) and the second detonator (2) are arranged in alignment with each other, and a sealing sleeve (3) is arranged between the first detonator (1) and the second detonator (2); a first detonating cord (13) is arranged at the end of the first detonator (1), and a second detonating cord (23) is arranged at the end of the second detonator (2); the first detonating cord (13) and the second detonating cord (23) are connected to each other via a transfer tube (5), and the first detonating cord (13), the second detonating cord (23) and the transfer tube (5) are all located inside the sealing sleeve (3).
2. The underwater deep foundation pit reef rock blasting layered detonation structure according to claim 1 is characterized by: The sealing sleeve (3) is configured as a semi-circular ring structure, and two groups are arranged opposite to each other; a sealing gasket (32) is provided on the connecting surface of the sealing sleeve (3), and the sealing gasket (32) is made of rubber material; a guide head (14) is provided at one end of the first detonator (1) facing away from the second detonator (2), and the guide head (14) is configured as a truncated cone structure.
3. The underwater deep foundation pit reef rock blasting layered detonation structure according to claim 1 is characterized by: The two ends of the sealing sleeve (3) are respectively provided with a clamping seat (31); the opposite ends of the first detonating tube (1) and the second detonating tube (2) are respectively provided with a groove, and the clamping seats (31) at the two ends of the sealing sleeve (3) are respectively clamped in the grooves of the first detonating tube (1) and the second detonating tube (2).
4. The underwater deep foundation pit reef rock blasting layered detonation structure according to claim 1 is characterized by: A plurality of groups of first fixing blocks (11) are arranged on the side of the first detonator tube (1), and a plurality of groups of second fixing blocks (21) are correspondingly arranged on the side of the second detonator tube (2); a first connecting rod (12) is transversely arranged on the first fixing block (11), and a second connecting rod (22) is correspondingly arranged on the second fixing block (21); the first connecting rod (12) and the second connecting rod (22) are aligned with each other and fixedly connected via a connecting tube (4).
5. The underwater deep foundation pit reef rock blasting layered detonation structure according to claim 4 is characterized by: The first connecting rod (12) and the second connecting rod (22) are both configured as screw rods, and the directions of the threads on their surfaces are opposite; the two ends of the connecting tube (4) are respectively connected to the first connecting rod (12) and the second connecting rod (22) via threads; a torsion tube (41) is provided on the outside of the connecting tube (4); and friction patterns are provided on the outside of the torsion tube (41).