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CN-224215971-U - Surface mine blasting damping ditch close to tunnel

CN224215971UCN 224215971 UCN224215971 UCN 224215971UCN-224215971-U

Abstract

The utility model discloses a surface mine blasting damping ditch close to a tunnel, which comprises the ground surface, a blasting area, a protection area, a ditch and a damping structure; according to the utility model, water is injected into the buffer water bag through the main pipe and the water diversion pipe, then the plugboard is inserted into the groove, the bottom plate is fixed in the groove, the buffer water bag is attached to the wall surface of the blasting area due to the stress of the shock absorption plate, when the blasting area is blasted to generate earthquake waves, the buffer water bag can resist the earthquake waves, the water injected into the buffer water bag can counteract part of the earthquake waves, the buffer water bag can consume wave energy, meanwhile, part of wave energy is reflected, the stressed buffer plate can vibrate due to the vibration waves, so that wave energy is dissipated, and as a certain distance exists between one end of the bottom plate and the protection area, the bottom plate is not contacted with the protection area, the transmission of the ripple to the protection area through the shock absorption structure is greatly reduced, the shock absorption is performed through the shock absorption structure, the installation stability is high, the buffer water bag can be reused, and the shock absorption capacity is improved.

Inventors

  • Zhuo Taosheng
  • SU YULIN
  • HE WEIQIANG
  • XIAO CHANGGEN

Assignees

  • 福建省天玉方圆矿业有限公司

Dates

Publication Date
20260508
Application Date
20250630

Claims (7)

  1. 1. The surface mine blasting damping ditch close to a tunnel comprises a ground surface (1), wherein a groove (2) is formed in the ground surface (1), the ground surface (1) can be divided into a blasting area (11) and a protection area (12) through the groove (2), the surface mine blasting damping ditch is characterized by further comprising a damping structure (3), the groove (2) is internally provided with the damping structure (3), the damping structure (3) comprises a bottom plate (31), the bottom plate (31) is arranged in the groove (2), and a damping plate (32) is arranged at the end part of the bottom plate (31).
  2. 2. A surface mine blasting vibration-damping ditch immediately adjacent to a tunnel as claimed in claim 1, wherein the vibration-damping plate (32) is inclined outwardly when in an unstressed natural state.
  3. 3. A surface mine blasting vibration-damping ditch adjacent to a tunnel according to claim 1, wherein the bottom of the bottom plate (31) is provided with two insertion plates (39), and the insertion plates (39) are respectively positioned at two ends of the bottom plate (31).
  4. 4. A surface mine explosion and damping ditch adjacent to a tunnel according to claim 3, wherein when the plugboard (39) is inserted into the ground surface (1), one end of the bottom board (31) is spaced from the protection area (12) by a certain distance.
  5. 5. The surface mine blasting vibration-damping ditch immediately adjacent to a tunnel according to claim 1, wherein a fixed ring (33) is arranged on the vibration-damping plate (32), a water pipe (34) is arranged in the fixed ring (33), a sieve (35) is connected to an opening of the water pipe (34), a water diversion pipe (36) is fixed on the vibration-damping plate (32), the water diversion pipe (36) is connected with the water pipe (34), and a buffer water bag (37) is fixed on the water diversion pipe (36).
  6. 6. The surface mine blasting vibration-damping ditch adjacent to a tunnel according to claim 5, wherein a clamping piece (38) is arranged at the lower end of the buffer water bag (37), and the clamping piece (38) is in butt joint with the vibration-damping plate (32).
  7. 7. The surface mine explosion damping ditch adjacent to a tunnel according to claim 6, wherein a buffer layer (371) is arranged on the surface of the buffer water bag (37), and a friction layer (372) is arranged on the surface of the buffer layer (371).

Description

Surface mine blasting damping ditch close to tunnel Technical Field The utility model relates to the technical field of surface mines, in particular to a surface mine blasting damping ditch close to a tunnel. Background The main production systems of the surface mine comprise development and transportation systems, perforation blasting and loading systems, soil discharging systems, waterproof and drainage systems, production workshops such as crushing, ore dressing, machine repairing, steam repairing, power supply, water supply, explosive preparation, tailing pond and the like, and a soil-covering and field-making system, wherein a blasting damping ditch of the surface mine is a technical measure for reducing the influence of blasting vibration on the surrounding environment, and a vibration wave blocking belt is formed mainly by pre-digging grooves. The existing blasting damping ditch has the following problems: Most of the existing blasting damping ditches are simply dug ditches, and the ditches are simple in structure and relatively general in stability. Disclosure of utility model The utility model aims to provide a surface mine blasting damping ditch close to a tunnel so as to solve the problems in the background art. In order to achieve the purpose, the surface mine blasting damping ditch close to the tunnel comprises the ground surface, wherein the ground surface is provided with a groove, the ground surface can be divided into a blasting area and a protection area through the groove, a damping structure is arranged in the groove and comprises a bottom plate, the bottom plate is arranged in the groove, and a damping plate is arranged at the end part of the bottom plate. Preferably, the shock absorbing plate is in an outwards inclined state when in an unstressed natural state. Preferably, the bottom of the bottom plate is provided with two plugboards, and the plugboards are respectively positioned at two ends of the bottom plate. Preferably, when the plugboard is inserted into the ground, a certain distance exists between one end of the bottom plate and the protection area. Preferably, the damping plate is provided with a fixing ring, a water pipe is arranged in the fixing ring, a sieve is connected to the opening of the water pipe, a water diversion pipe is fixed on the damping plate and connected with the water pipe, and a buffer water bag is fixed on the water diversion pipe. Preferably, a clamping piece is arranged at the lower end of the buffer water bag and is in butt joint with the damping plate. Preferably, a buffer layer is arranged on the surface of the buffer water bag, and a friction layer is arranged on the surface of the buffer layer. Compared with the prior art, the utility model has the beneficial effects that: The water is injected into the buffer water bag through the main pipe and the shunt pipe, then the plugboard is inserted into the groove, the bottom plate is fixed in the groove, at the moment, the buffer water bag is attached to the wall surface of the blasting area due to the stress of the shock absorbing plate, when the blasting area is blasted to generate earthquake waves, the buffer water bag can resist the earthquake waves, part of the earthquake waves can be counteracted by the water injected into the buffer water bag, the buffer water bag can consume the wave energy, meanwhile, part of the wave energy is reflected, the stressed shock absorbing plate can vibrate due to the vibration waves, so that the wave energy is dissipated, and the bottom plate is not contacted with the protection area due to a certain distance between one end of the bottom plate and the protection area. Drawings FIG. 1 is a schematic diagram of the structure of the present utility model; FIG. 2 is a schematic diagram of a front view of a trench according to the present utility model; FIG. 3 is a schematic diagram of a front view of a shock absorbing structure according to the present utility model; FIG. 4 is a schematic view of the structure of the shock absorbing plate in an unstressed natural state according to the present utility model; fig. 5 is a schematic cross-sectional view of the buffer water bag of the present utility model. In the figure, the ground surface-1, the blasting area-11, the protection area-12, the groove-2, the damping structure-3, the bottom plate-31, the damping plate-32, the fixing ring-33, the water pipe-34, the sieve-35, the water diversion pipe-36, the buffer water bag-37, the buffer layer-371, the friction layer-372, the clamping piece-38 and the plugboard-39 are shown in the figure. Detailed Description In order to further explain the technical scheme of the utility model, the following is explained in detail through specific examples. Referring to fig. 1 and 2, the present utility model provides a damping ditch for blasting a surface mine, which is close to a tunnel, and comprises a ground surface 1, wherein a groove 2 is excavated on the ground surface 1, the ground s