CN110345826B - Method for protecting smooth blasting vibration in tunnel - Google Patents
Method for protecting smooth blasting vibration in tunnel Download PDFInfo
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- CN110345826B CN110345826B CN201910428129.5A CN201910428129A CN110345826B CN 110345826 B CN110345826 B CN 110345826B CN 201910428129 A CN201910428129 A CN 201910428129A CN 110345826 B CN110345826 B CN 110345826B
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- vibration
- blasting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
- F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
- F42D5/045—Detonation-wave absorbing or damping means
Abstract
The invention relates to a method for protecting the vibration of a tunnel inner light surface blasting, which comprises the step of drilling a plurality of vibration reduction holes and a plurality of vibration reduction grooves at intervals in a light blasting area in the tunnel, wherein each vibration reduction hole is positioned between two adjacent peripheral holes, and each vibration reduction groove is respectively positioned between two adjacent peripheral holes.
Description
Technical Field
The invention belongs to the technical field of blasting engineering, and particularly relates to a method for smooth blasting vibration protection in a tunnel.
Background
Blasting vibration is a main hazard caused by blasting construction, and compared with blasting hazards such as flying stones, shock waves and dust, the blasting vibration has the characteristics of unavailability and large influence range, and the main hazard objects are surface buildings and the like. With the development of urban traffic at the present stage, the construction of urban subway tunnels for passing through buildings is more common, and particularly, the requirements of schools, hospitals and other buildings with higher requirements on vibration are extremely urgent for the vibration reduction method and technology for blasting micro-vibration. The peripheral holes are blast holes positioned on the outermost circle when tunnel blasting is carried out. In the tunnel smooth blasting, the main blasting area and the light blasting area are detonated twice, and after the blasting of the main blasting area is finished, the peripheral holes of the light blasting area are detonated. The peripheral holes are blast holes closest to surface buildings, so that the vibration reduction in the peripheral hole blasting process is also important. Currently, a common damping method in tunnel blasting is to use damping grooves or rows of damping holes between the tunnel and the building to be protected for damping. Although the method can solve the blasting vibration hazard caused by blasting construction, the vibration reduction ditch and the vibration reduction holes in multiple rows need to be arranged on the ground instead of in the tunnel, and uncertainty is caused to the construction of the vibration reduction ditch due to the complexity of ground traffic conditions and buildings. It can be seen that further improvements are needed in the prior art blast damping techniques.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for protecting smooth blasting vibration in a tunnel, which does not need to be constructed on the ground surface and has good damping effect.
In order to achieve the purpose, the technical scheme of the invention comprises the steps of drilling a plurality of vibration reduction holes and a plurality of vibration reduction grooves in a light explosion region in a tunnel in a separated mode;
each damping hole is positioned between two adjacent peripheral holes, and each damping groove is respectively positioned between two adjacent peripheral holes.
Further, the vibration damping holes are arranged on one side of the peripheral holes, which is far away from the ground surface; the damping holes are positioned on the side of the peripheral holes far away from the ground surface.
The connecting line distance between two adjacent peripheral holes is L, and the perpendicular distance between the vibration reduction hole and the connecting line between two adjacent peripheral holes is S, wherein S = 0.4L;
the damping holes are located on a perpendicular bisector of a connecting line between two adjacent peripheral holes.
Further, the vibration damping groove is located on a perpendicular bisector of a connecting line of the two peripheral holes.
Further, the damping slot is rectangular, one short side of the damping slot is arranged on the boundary of the tunnel, the short side of the other end of the damping slot is located on a perpendicular bisector of a connecting line of two adjacent peripheral holes, the perpendicular distance from the short side to the connecting line of the two adjacent peripheral holes is M, M = 0.4L, and the connecting line distance between the two adjacent peripheral holes is L.
Further, the width of the vibration damping groove is the same as the diameter of the peripheral hole.
Further, the depth of the vibration reduction hole is one third of the depth of the peripheral hole.
Further, the depth of the vibration reduction groove is one third of the depth of the peripheral hole.
Further, the shock absorption holes are filled with a blast smoke absorbent.
Furthermore, the vibration reduction groove is filled with high polymer vibration absorption materials.
Furthermore, the vibration reduction holes and the vibration reduction grooves are positioned by adopting hole position positioning devices and then drilled, the hole position positioning devices comprise two hole plug cylinders, a telescopic cross rod which connects the two hole plug cylinders and a telescopic graduated scale which is vertically arranged at the center of the telescopic cross rod;
the hole plug cylinder is matched with the peripheral hole;
scales are arranged on the telescopic graduated scale.
The invention has the following positive effects:
the invention arranges the damping holes with higher free surfaces and the damping grooves with lower free surfaces in a spaced fit manner, and when the peripheral holes are blasted, the method and the device ensure that a part of energy generated after the explosive is blasted is absorbed from the damping holes and the damping grooves, thereby reducing the energy propagated upwards and reducing the vibration and damage to the ground surface. The ground surface vibration speed is reduced through verification.
In addition, the method can ensure the smooth forming of the tunnel contour line and reduce the phenomena of overbreak and underexcavation.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural diagram of the hole site positioning device of the present invention;
FIG. 4 is a schematic view of the damping hole of the present invention;
FIG. 5 is a schematic structural view of a damping groove according to the present invention;
in the attached drawing, 1 peripheral hole, 2 damping holes, 3 damping grooves, 4 hole plug cylinders, 5 telescopic cross rods, 6 telescopic graduated scales, 7 high polymer vibration absorption materials, 8 blasting smoke absorbents, 9 tunnel boundaries, 10 blasting I areas and 11 blasting II areas.
Detailed Description
The solution according to the invention will be further elucidated and explained with reference to the drawings. The smooth blasting in the tunnel is divided into a blasting I area 10 and a blasting II area 11, wherein the blasting I area is a main blasting area for blasting firstly, and the blasting II area is a smooth blasting area for blasting later. Blasting I district 10 is located inside the tunnel of blasting II district 11, and blasting II district is closer to ground than blasting I district, and blasting II district 11 is located the periphery of blasting I district 10, and the periphery of blasting II district 11 is tunnel boundary 9, and the periphery of tunnel boundary 9 is the earth's surface, and all round hole 1 also are the holes of blast that are nearest apart from the earth's surface building, is located the edge in tunnel, sets up along the tunnel edge, and it distributes to be located the tunnel near tunnel boundary 9. In the conventional technology, the longitudinal section of the tunnel is semicircular or arched, and the peripheral holes 1 are arranged along the arc edge of the tunnel and are evenly distributed on the inner side of the tunnel. The peripheral holes 1 are arranged as shown in fig. 1, the peripheral holes 1 being arranged close to the tunnel edge.
As shown in fig. 1-5, the invention alternately drills a plurality of vibration reduction holes 2 and a plurality of vibration reduction grooves 3 in a light explosion region inside a tunnel; the number of the damping holes 2 is one or more, and the number of the damping grooves 3 is one or more;
each of the damping holes 2 is located between two adjacent peripheral holes 1, and each of the damping grooves 3 is located between two adjacent peripheral holes 1.
Further, the damping holes 2 are arranged on one side of the peripheral holes 1 far away from the ground surface, and the damping holes 2 are arranged on one side of the peripheral holes 1 far away from the ground surface, namely the damping holes 2 are arranged in the tunnel relative to the peripheral holes 1; as can be seen from fig. 1, the damping hole 2 is located below the peripheral hole 1. Each vibration reduction groove 3 is respectively positioned between two adjacent peripheral holes 1, namely the vibration reduction grooves 3 are positioned in the tunnel relative to the peripheral holes 1; as can be seen from fig. 1, the damping groove 3 is located below the peripheral hole 1.
Further, a connecting line distance between two adjacent peripheral holes 1 is L, a vertical distance between a center of the vibration damping hole 2 and a connecting line between two adjacent peripheral holes 1 is S, that is, a vertical distance between a center of the vibration damping hole 2 and the connecting line L is S, and S = 0.4L;
the center of the damping hole 2 is located on the perpendicular bisector of the connecting line between the adjacent two peripheral holes 1.
Further, the damping groove 3 is rectangular, one short side of the damping groove 3 is arranged on the tunnel boundary 9, the short side of the other end is located on a perpendicular bisector of a connecting line of two adjacent peripheral holes 1, the perpendicular distance from the short side to the connecting line of the two adjacent peripheral holes 1 is M, M = 0.4L, and the connecting line distance between the two adjacent peripheral holes 1 is L.
Further, the damper groove 3 is located on a perpendicular bisector of a line connecting the two peripheral holes 1 on the left and right sides thereof.
Further, the width of the vibration damping groove 3 is the same as the diameter of the peripheral hole 1.
Further, the depth of the damping hole 2 is one third of the depth of the peripheral hole 1.
Further, the depth of the vibration damping groove 3 is one third of the depth of the peripheral hole 1.
Furthermore, the vibration reduction hole 2 is filled with a blast smoke absorbent 8. The vibration reduction hole 2 is not provided with explosive, and the blast smoke absorbent 8 is arranged in the hole. Preferably, the fume absorbent 8 is lime water with the mass fraction of 0.4%, and the lime water is bagged and then placed into the hole.
Further, the vibration reduction tank 3 is not provided with explosive, but is filled with high polymer vibration absorption material 7, preferably, the high polymer vibration absorption material 7 is high polymer vibration absorption material, and can be selected from one or more of nitrile rubber, butyl rubber, polyurethane elastomer, polyoxyethylene-styrene block copolymer, plasticized polyvinyl chloride, polyvinyl butyral, polymethyl methacrylate, vinyl chloride-vinyl acetate copolymer or polyvinyl chloride blend.
Furthermore, the vibration reduction holes 2 and the vibration reduction grooves 3 are positioned by adopting hole position positioning devices and then drilled, wherein the hole position positioning devices comprise two hole plug cylinders 4, telescopic cross rods 5 which connect the two hole plug cylinders 4 and telescopic graduated scales 6 which are vertically arranged at the center of the telescopic cross rods 5;
the hole plug cylinder 4 is matched with the peripheral hole 1;
scales are arranged on the telescopic graduated scale 6.
In the invention, during tunnel blasting, the smooth blasting of the tunnel is divided into a blasting I area 10 and a blasting II area 11, wherein the blasting I area 10 is a main blasting area for blasting firstly, and the blasting II area 11 is a smooth blasting area for blasting later. Specifically, the main explosion area and the light explosion area are detonated twice, after the main explosion area is exploded, the peripheral holes 1 of the light explosion area are detonated, the peripheral holes 1 are also blast holes closest to a ground surface building, when the peripheral holes 1 are exploded, most of the explosive explosion energy can be discharged through the vibration reduction holes 2 and the vibration reduction grooves 3, the rest energy is transmitted to the ground surface above the tunnel, the energy generated by vibration is greatly reduced, and the ground surface vibration speed is effectively reduced. When blasting, the dust that the blasting process produced is absorbed to the big gun smoke absorbent 8 in the damping hole 2, reduces the blasting to the harm of environment, and the supplementary blasting vibrations that has reduced of high polymer vibration absorbing material 7 in damping groove 3 simultaneously reduces the blasting vibrations, reduces the blasting and influences the vibrations on the earth's surface.
The peripheral hole 1 and the damping groove 3 are matched with each other, and the circular surface of the peripheral hole 1 and the square surface of the damping groove 3 are matched with each other, so that a new free surface is generated on the inner side of the peripheral hole, seismic waves are released in the peripheral hole 1 and the damping groove 3 along the edges, and the vibration energy transmitted to the ground is further reduced.
Example 1
As shown in fig. 1, in the present embodiment, the number of the peripheral holes 1 is 13, and according to the arrangement method that each of the damping holes 2 and the damping grooves 3 are arranged at intervals, and each of the damping holes 2 is arranged between two adjacent peripheral holes 1, and each of the damping grooves 3 is arranged between two adjacent peripheral holes 1, the number of the damping holes 2 is 6, and the number of the damping grooves 3 is also 6. in this example, the connection line distance L between two adjacent peripheral holes 1 is 0.6m, the connection line perpendicular distance between the damping hole 2 and two adjacent peripheral holes 1 is S, and S = 0.4L =0.24m, so that the damping hole 2 is arranged on the perpendicular bisector at a distance of 0.24m from the connection line between two adjacent peripheral holes 1.
The damping groove 3 is square, the length of a short side of the damping groove 3 is the same as the diameter of the peripheral hole, the length of the short side is 42mm of the diameter of the peripheral hole 1, the damping groove 3 is rectangular, a short side at one end of the damping groove 3 is arranged on a tunnel boundary 9, a short side at the other end of the damping groove 3 is positioned on a perpendicular bisector of a connecting line of two adjacent peripheral holes 1, the perpendicular distance between the short side at the end and the connecting line of the two adjacent peripheral holes 1 is M, M = 0.4L, the connecting line distance between the two adjacent peripheral holes 1 is L M, and M = 0.4L = 0.24M.
Preferably, the depth of the peripheral hole 1 in this example is 1.5m, and the depth of the damping hole 2 is 0.5 m; the depth of the vibration-damping groove 3 was 0.5 m. Because damping hole 2 and damping groove 3 are shock attenuation in coordination, the excavation depth in hole and groove is less, has reduced working strength.
Explosive is filled in the peripheral holes 1, and explosive is not filled in the damping holes 2 and the damping grooves 3.
And the vibration reduction hole 2 is filled with a blast smoke absorbent 8.
The vibration reduction groove 3 is filled with a high polymer vibration absorption material 7.
The vibration reduction holes 2 and the vibration reduction grooves 3 are positioned by adopting a hole position positioning device and then drilled, the hole position positioning device comprises two hole plug cylinders 4, a telescopic cross rod 5 which connects the two hole plug cylinders 4 and a telescopic graduated scale 6 which is vertically arranged at the center of the telescopic cross rod 5;
the hole plug cylinder 4 is matched with the hole diameter of the peripheral hole 1;
scales are arranged on the telescopic graduated scale 6.
Preferably, the diameter of the hole plug cylinder 3 in the example is 42mm of the diameter of the blast hole of the peripheral hole 1, and the material is hard PVC material.
The concrete structure of flexible horizontal pole 5 in this example is that the dead lever is in the middle of it, the dead lever both ends are swing joint respectively has the connecting rod, two hole stopper cylinders 3 rigid coupling respectively are at the tip of connecting rod, two connecting rod activities set up the both ends at the dead lever, its flexible length satisfies 1 wiring distance 0.6m in all around hole, wherein the length of fixed pole portion is 0.3m, both sides connecting rod is 0.2m respectively, the material is the stereoplasm PVC material, during the use, respectively stretch out 0.15m with both sides connecting rod for the dead lever part, including dead lever part length is 0.3m, for adjacent 1 wiring distance 0.6m in all around hole.
In the embodiment, one end of the telescopic graduated scale 6 is vertically fixed at the central position of the fixed rod of the telescopic cross rod 5, the other end is a free end and can be extended and retracted, the total length of the telescopic graduated scale 6 is 0.2m, concretely, the telescopic graduated scale 6 comprises a fixed graduated scale and a movable graduated scale, the fixed graduated scale is fixedly connected at the central position of the fixed rod of the telescopic cross rod 5, one end of the movable graduated scale is movably connected with the fixed graduated scale, the other end of the movable graduated scale is a free end,
the fixed graduated scale part is 0.10m long, the movable graduated scale part is 0.2m long, scales are marked on the two parts, the fixed graduated scale part and the movable graduated scale part are made of hard PVC materials, and the movable graduated scale extends out 0.14m relative to the fixed graduated scale.
In addition, the telescopic cross rod 5, the hole plug cylinder 4 and the telescopic graduated scale 6 are bonded by PVC glue in the example.
Referring to fig. 4, a schematic structural diagram of the damping hole 2 is shown, which includes the damping hole 2 and the soot absorber 8 filled in the damping hole 2.
Preferably, the diameter of the damping hole 2 is equal to the diameter of the peripheral hole 1. The diameter of the vibration damping hole 2 is 42mm of the diameter of the blast hole of the peripheral hole 1 in the example.
Preferably, the fume absorbent 8 in this example is bagged lime water, and the weight fraction of the lime water is 0.4%.
Referring to fig. 5, the vibration damping groove 3 includes a vibration damping groove 3 and a high polymer vibration absorbing material 7 filled in the vibration damping groove 3.
Preferably, the vibration damping slot 3 in this example has a short side length of 42mm in the diameter of the hole 1 and a long side length of 0.2 m.
Preferably, the vibration absorbing material 7 in this embodiment is a high polymer vibration absorbing material selected from one or more of nitrile rubber, butyl rubber, polyurethane elastomer, polyethylene oxide-styrene block copolymer, plasticized polyvinyl chloride, polyvinyl butyral, polymethyl methacrylate, vinyl chloride-vinyl acetate copolymer, and a blend of polyvinyl chloride, and this embodiment is selected from nitrile rubber.
The vibration speed of the present example was tested to be 0.176 cm/s.
Comparative example 1
The present comparative example is different from example 1 in that the vibration damping grooves 3 are replaced with vibration damping holes 2, and the method of disposing the vibration damping holes 2 after replacement is the same as that of the other vibration damping holes 2.
The vibration speed of the present example was tested to be 0.216 cm/s.
Comparative example 2
This comparative example is different from example 1 in that the damping hole 2 is replaced with the damping groove 3, and the method of disposing the damping groove 3 after replacement is the same as that of the other damping grooves 3.
The vibration speed of the present example was tested to be 0.251 cm/s.
Comparative example 3
This comparative example is different from example 1 in that the damping holes 2 and the damping grooves 3 do not contain fillers therein.
The vibration speed of the present example was tested to be 0.319 cm/s.
Comparative example 4
The difference between the comparative example and the example 1 is that the distance between the connecting lines of two adjacent peripheral holes 1 is L, the vertical distance between the center of the vibration damping hole 2, namely the circle center, and the connecting line between two adjacent peripheral holes 1 is S, namely the vertical distance between the circle center of the vibration damping hole 2 and the connecting line L is S, and S = 1/3L, and the vibration damping hole 2 is positioned on the perpendicular bisector of the connecting line between the two peripheral holes 1.
The vibration speed of the present example was tested to be 0.255 cm/s.
Comparative example 5
The comparative example is different from example 1 in that the damping groove 3 is rectangular, one short side of the damping groove 3 is arranged on the boundary of the tunnel, the short side of the other end is positioned on the perpendicular bisector of the connecting line of the two adjacent peripheral holes 1, the perpendicular distance between the short side and the connecting line of the two peripheral holes 1 is M, M = 1/3L, and the connecting line distance between the two peripheral holes 1 is L.
The vibration speed of the present example was tested to be 0.270 cm/s.
Comparative example 6
The difference between the present comparative example and the example 1 is (1) that the vibration damping groove 3 is replaced by the vibration damping hole 2, the method for arranging the vibration damping hole 2 after replacement is the same as that of the other vibration damping holes 2, (2) the connecting line distance between two adjacent peripheral holes 1 is L, the vertical distance between the vibration damping hole 2 and the connecting line between two adjacent peripheral holes 1 is S, namely the vertical distance between the vibration damping hole 2 and the connecting line L is S, and S = 1/3L, and the vibration damping hole 2 is positioned on the perpendicular bisector of the connecting line between the two peripheral holes 1.
The vibration speed of the present example was tested to be 0.293 cm/s.
According to the invention, the damping holes 2 with higher free surfaces and the damping grooves 3 with lower free surfaces are arranged in a spaced fit manner, and when the peripheral holes are blasted, part of energy generated by the explosive after blasting is discharged from the damping holes and the damping grooves and absorbed by the method and the device, so that the energy transmitted upwards is reduced, and the vibration damage to the ground surface is reduced. Through double verification of simulation and field test, the ground surface vibration speed is reduced.
It can be seen from the comparative example that after the slotted holes are alternately arranged and changed into the full-hole design, namely the comparative example 1 or the full-groove design, namely the comparative example 2, the shock absorption speed is not as high as the effect of the invention, and the relative positions of the slotted holes and the peripheral holes play a key role in the shock absorption effect, after the explosives in the peripheral holes explode, the flow behavior of detonation products can cause the change of pressure and volume. The slotted holes are arranged at intervals to play a role in synergy, and the circular free surface and the square free surface can be dredged respectively, so that the amplitude of the seismic wave energy attenuation can be greatly reduced, and the vibration speed of surface particles is reduced along with the attenuation of the seismic wave propagation energy. Through setting up the shallower damping hole 2 of excavation degree of depth and damping groove 3, can reach absorbing effect through the cooperation of the two, it is little to the peripheral rock mass injury in tunnel, efficient.
In addition, the method can ensure the smooth forming of the tunnel contour line and reduce the phenomena of overbreak and underexcavation.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A method for protecting smooth blasting vibration in a tunnel is characterized by comprising the following steps: drilling a plurality of damping holes (2) and a plurality of damping grooves (3) at intervals in a light explosion region inside the tunnel;
each damping hole (2) is positioned between two adjacent peripheral holes (1), and each damping groove (3) is respectively positioned between two adjacent peripheral holes (1);
the vibration reduction holes (2) are positioned on one side of the peripheral holes (1) far away from the ground surface;
the connecting line distance between two adjacent peripheral holes (1) is L, and the perpendicular distance between the vibration damping hole (2) and the connecting line between two adjacent peripheral holes (1) is S, S = 0.4L;
the vibration reduction holes (2) are positioned on a perpendicular bisector of a connecting line between the two peripheral holes (1);
the vibration reduction groove (3) is positioned on a perpendicular bisector of a connecting line of the two peripheral holes (1);
the damping slot (3) is rectangular, one short side of one end of the damping slot (3) is arranged on the tunnel boundary (9), the short side of the other end of the damping slot is positioned on a perpendicular bisector of a connecting line of two adjacent peripheral holes (1), the perpendicular distance between the short side of the end and the connecting line of the two adjacent peripheral holes (1) is M, M = 0.4L, and the connecting line distance between the two adjacent peripheral holes (1) is L.
2. The method for lightface blasting vibration protection in tunnels according to claim 1, wherein: the width of the vibration reduction groove (3) is the same as the diameter of the peripheral hole (1).
3. The method for lightface blasting vibration protection in tunnels according to claim 1, wherein: the depth of the vibration reduction hole (2) is one third of that of the peripheral hole (1).
4. The method for lightface blasting vibration protection in tunnels according to claim 1, wherein: the depth of the vibration reduction groove (3) is one third of that of the peripheral hole (1).
5. The method for lightface blasting vibration protection in tunnels according to claim 1, wherein: and the vibration reduction hole (2) is filled with a blast smoke absorbent (8).
6. The method for lightface blasting vibration protection in tunnels according to claim 1, wherein: and the vibration reduction groove (3) is filled with a high polymer vibration absorption material (7).
7. The method for lightface blasting vibration protection in tunnels according to any of claims 1 to 6, wherein: the vibration reduction holes (2) and the vibration reduction grooves (3) are positioned by adopting hole position positioning devices and then drilled, wherein each hole position positioning device comprises two hole plug cylinders (4), a telescopic cross rod (5) which connects the two hole plug cylinders (4) and a telescopic graduated scale (6) which is vertically arranged at the center of the telescopic cross rod (5);
the hole plug cylinder (4) is matched with the peripheral hole (1);
scales are arranged on the telescopic graduated scale (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910428129.5A CN110345826B (en) | 2019-05-22 | 2019-05-22 | Method for protecting smooth blasting vibration in tunnel |
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| CN201910428129.5A CN110345826B (en) | 2019-05-22 | 2019-05-22 | Method for protecting smooth blasting vibration in tunnel |
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| CN110345826B true CN110345826B (en) | 2020-07-31 |
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| CN113607014B (en) * | 2021-08-10 | 2023-05-02 | 浙江交工金筑交通建设有限公司 | Composite shock insulation structure for tunnel blasting |
| CN114963907B (en) * | 2022-06-30 | 2024-03-15 | 北京住总集团有限责任公司 | Rock tunnel blasting excavation method |
| CN117168257B (en) * | 2023-11-02 | 2024-02-13 | 华侨大学 | Blasting vibration reduction device for interchange tunnel and vibration reduction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100643593B1 (en) * | 2005-05-31 | 2006-11-10 | 이태노 | The excavation method for reduction of blasting vibration with firing units & explosives : fe-rex |
| CN103175451A (en) * | 2013-03-13 | 2013-06-26 | 中国建筑土木建设有限公司 | Construction method of tunnel shock relieve hole controlling blasting |
| CN103234404A (en) * | 2013-05-03 | 2013-08-07 | 贵州新联爆破工程集团有限公司 | Blasting vibration control method |
| CN103983147A (en) * | 2014-04-18 | 2014-08-13 | 同济大学 | Permafrost region road tunnel peripheral hole blasting construction method |
| CN106014421A (en) * | 2016-05-11 | 2016-10-12 | 宁波市交通规划设计研究院有限公司 | Blasting vibration limited rock tunnel excavation method |
| CN108716880A (en) * | 2018-06-08 | 2018-10-30 | 中国科学院武汉岩土力学研究所 | A kind of device and construction method improving water-filling shock relieve vent abatement blasting vibration effect |
-
2019
- 2019-05-22 CN CN201910428129.5A patent/CN110345826B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100643593B1 (en) * | 2005-05-31 | 2006-11-10 | 이태노 | The excavation method for reduction of blasting vibration with firing units & explosives : fe-rex |
| CN103175451A (en) * | 2013-03-13 | 2013-06-26 | 中国建筑土木建设有限公司 | Construction method of tunnel shock relieve hole controlling blasting |
| CN103234404A (en) * | 2013-05-03 | 2013-08-07 | 贵州新联爆破工程集团有限公司 | Blasting vibration control method |
| CN103983147A (en) * | 2014-04-18 | 2014-08-13 | 同济大学 | Permafrost region road tunnel peripheral hole blasting construction method |
| CN106014421A (en) * | 2016-05-11 | 2016-10-12 | 宁波市交通规划设计研究院有限公司 | Blasting vibration limited rock tunnel excavation method |
| CN108716880A (en) * | 2018-06-08 | 2018-10-30 | 中国科学院武汉岩土力学研究所 | A kind of device and construction method improving water-filling shock relieve vent abatement blasting vibration effect |
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