CN107702607B - Integral blasting operation safety shield and manufacturing method thereof - Google Patents
Integral blasting operation safety shield and manufacturing method thereof Download PDFInfo
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- CN107702607B CN107702607B CN201710887420.XA CN201710887420A CN107702607B CN 107702607 B CN107702607 B CN 107702607B CN 201710887420 A CN201710887420 A CN 201710887420A CN 107702607 B CN107702607 B CN 107702607B
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- 238000005422 blasting Methods 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 156
- 239000010959 steel Substances 0.000 claims abstract description 156
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 99
- 230000002093 peripheral effect Effects 0.000 claims abstract description 39
- 230000001681 protective effect Effects 0.000 claims abstract description 26
- 238000003466 welding Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000004575 stone Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- 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
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Abstract
An integral blasting operation safety shield comprises a peripheral structure of the safety shield, a cover plate, an opening cover plate, a protection rib and a hanging ring; the peripheral structure consists of two longitudinal steel plates and two transverse steel plates; an upper reinforcing rib and a lower reinforcing rib are respectively arranged on the periphery of the outer side of the peripheral structure; the inside of the peripheral structure is provided with a plurality of inner tie bars and inner reinforcing ribs which are transversely and longitudinally crossed; the cover plate is arranged above the peripheral structure and is connected with the longitudinal steel plate so as to form a whole with the peripheral structure; the middle part of the cover plate is provided with a cover plate exhaust hole; the protective ribs are arranged on the cover plate; the opening cover plate is arranged between the cover plate and the protective ribs and covers the cover plate exhaust hole; the hanging ring is arranged on the longitudinal steel plate. The invention can ensure the safety of the blasting operation on the premise of ensuring the breaking speed of the blasting operation on the hard rock, and simultaneously reduces the noise generated by the blasting operation, thereby having good economic and social benefits.
Description
Technical Field
The invention relates to the technical field of blasting shelter protection, in particular to an integral blasting operation safety shield and a manufacturing method thereof.
Background
The safety covering measures adopted by the current construction foundation pit hard rock blasting operation are mainly to cover by using a single steel plate, so that the safety covering needs to spend a great deal of time to carry the steel plate before and after each blasting operation, the single steel plate is overlapped and covered, no connection among the blocks is only overlapped, flying stones are easy to generate under the action of blast operation air waves, and the personal safety of constructors, surrounding residents and pedestrians is greatly influenced.
Disclosure of Invention
The invention aims to provide an integral type blasting operation safety protection cover and a manufacturing method thereof, which can ensure the safety of blasting operation on the premise of ensuring the breaking speed of the blasting operation on hard rock, and simultaneously weaken noise generated by the blasting operation, and have good economic benefit and social benefit so as to solve the problems existing in the prior art.
In order to solve the problems, the invention adopts the following technical scheme: an integral blasting operation safety shield comprises a peripheral structure of the safety shield, a cover plate, an opening cover plate, a protection rib and a hanging ring;
the peripheral structure comprises four peripheral edges with a plane bottom, wherein the four peripheral edges are formed by two longitudinal steel plates and two transverse steel plates, the two adjacent edges are respectively the longitudinal steel plates and the transverse steel plates, and the height of the longitudinal steel plates is larger than that of the transverse steel plates to form lateral air wave exhaust holes; an upper reinforcing rib and a lower reinforcing rib are respectively arranged on the periphery of the outer side of the peripheral structure, and the upper reinforcing rib is arranged above the lower reinforcing rib; the inside of the peripheral structure is provided with a plurality of inner tie bars and inner reinforcing ribs which are transversely and longitudinally crossed, the inner tie bars comprise transverse tie bars and longitudinal tie bars, the longitudinal tie bars are arranged between two transverse steel plates at intervals, and two ends of each longitudinal tie bar pass through the transverse steel plates and are welded on the upper reinforcing ribs in a lap joint manner; the transverse tie bars and the inner reinforcing ribs are alternately arranged between the two longitudinal steel plates at intervals, and both ends of the transverse tie bars and the inner reinforcing ribs penetrate through the longitudinal steel plates and are welded on the upper reinforcing ribs in a lap joint manner;
the cover plate is arranged above the peripheral structure and is connected with the longitudinal steel plate so as to form a whole with the peripheral structure; the middle part of the cover plate is provided with a cover plate exhaust hole; a transverse hole tie bar is arranged at the lateral air wave exhaust hole and is in an L shape or a L shape, the horizontal section of the transverse hole tie bar is welded with the cover plate, and the vertical section of the transverse hole tie bar is welded with the transverse steel plate; the protective ribs are bent into a convex structure, the larger end of the protective ribs is of an open structure, the horizontal section of the open end of the convex structure is welded with the cover plate, and the vertical section of the protective ribs is welded with the longitudinal steel plate; the hole cover plate is arranged between the cover plate and the protective ribs to cover the cover plate exhaust hole;
the hanging ring is arranged on the longitudinal steel plate.
The further technical scheme is as follows: and the longitudinal tie bars are respectively welded and connected with the joint positions of the transverse tie bars and the inner reinforcing ribs.
The further technical scheme is as follows: the height of the longitudinal steel plate is 150 mm-250 mm higher than that of the transverse steel plate.
The distance between the opening cover plate and the protruding top of the protective rib is: 150mm to 200mm.
The spacing between the transverse tie bars and the inner reinforcing ribs is 500mm, and the spacing between the longitudinal tie bars is 500mm.
The longitudinal steel plate, the transverse steel plate and the cover plate are all Q235-type steel plates with the thickness of 4 mm.
And the upper reinforcing rib, the lower reinforcing rib and the inner reinforcing rib are all equilateral angle steel with the specification of L50 x 4.
The opening cover plate is made of fiber materials.
Another related technical scheme is as follows: the manufacturing method of the integral blasting operation safety shield is characterized by comprising the following steps of: it comprises the following steps:
A. welding longitudinal and transverse steel plates to form a peripheral structure of the safety shield: welding the longitudinal steel plate and the transverse steel plate to form a peripheral structure of the safety protection cover, wherein the joint positions of the longitudinal steel plate and the transverse steel plate are required to be fully welded;
B. welding an upper layer of reinforcing ribs and a lower layer of reinforcing ribs: the upper reinforcing ribs and the lower reinforcing ribs are welded on the longitudinal steel plate and the transverse steel plate according to the design drawing;
C. welding the internal tie bars and the internal reinforcing ribs: before the internal tie bars are welded, holes are formed in the corresponding positions of the longitudinal steel plates and the transverse steel plates, and after the holes are formed, the internal tie bars and the internal reinforcing ribs are welded; the inner reinforcing rib and the inner tie rib are required to be welded with the whole length of the contact position of the upper reinforcing rib, and the intersection of the longitudinal tie rib and the transverse tie rib as well as the inner reinforcing rib are required to be welded;
D. welding cover plates and corresponding steel bars at the cover plates: the cover plate and the longitudinal steel plate are welded in full length, and the welding seams are required to be full; the transverse hole tie bars and the protective bars are welded with corresponding steel plates according to requirements;
E. laying a hole cover plate and welding hanging rings: and covering an opening cover plate at the reserved opening of the cover plate, and finally welding 4 hanging rings on the longitudinal steel plate.
The manufacturing method of the integral blasting operation safety shield further comprises the following steps: the upper reinforcing rib and the lower reinforcing rib are respectively equal-sided angle steel with the specification of L50 x 4, one equal side of the upper reinforcing rib is jointed with a longitudinal steel plate or a transverse steel plate for welding, and two equal side lines of the lower reinforcing rib are jointed with the longitudinal steel plate or the transverse steel plate for welding.
Due to the adoption of the technical scheme, the integral blasting operation safety shield and the manufacturing method thereof have the following characteristics and beneficial effects:
(1) The safety shield of the invention adopts a longitudinal steel plate 1, a transverse steel plate 2, a cover plate 7 and inner and outer reinforcing ribs (namely an upper reinforcing rib 3, a lower reinforcing rib 4 and an inner reinforcing rib 6) to be welded into a whole, so that the device has higher bearing capacity.
(2) The longitudinal and transverse steel plates are of different heights, so that the bottoms are kept consistent, and lateral air wave exhaust holes can be formed in the transverse top; the sudden and large increase of the air pressure in the device during blasting can be effectively relieved.
(3) At the side air wave exhaust hole, the cover plate 7 and the transverse steel plate 2 are welded by the transverse hole drawknot rib 8 to play a drawknot role, so that the stability of the side air wave exhaust hole under the action of air waves is ensured.
(4) The inner side of the peripheral structure is provided with a plurality of inner tie bars 5 and inner reinforcing ribs 6 which are transversely and longitudinally crossed, and the intersection positions of the meshes are welded; the steel angle is adopted as the inner reinforcing rib 6, so that the rigidity of the net sheet can be increased, the end head of the steel bar is anchored at the upper reinforcing rib 3 and welded, and the lateral tension of the safety protection cover caused by air waves can be effectively resisted.
(5) The middle position of the cover plate 7 is provided with the cover plate exhaust hole 71, so that air waves can be rapidly exhausted from the device, and the internal pressure is reduced; in order to prevent broken stone from flying out of the upper vent hole, the upper vent hole is covered by a hole cover plate 9 made of fiber; the mesh of the protective ribs 10 is 150 mm-250 mm away from the opening cover plate, so that the position of the opening cover plate 9 can be effectively controlled; the rigid-flexible combination not only effectively discharges the air waves, but also well controls the flying-out of broken stones.
(6) The four corners of the longitudinal steel plate 1 are welded with the hanging rings 11, so that the safety protection cover is convenient to adjust, transport and move.
(7) The integral safety protection cover can be formed at one time and lifted for a plurality of times for a long time, so that the time for carrying materials for covering each blasting operation and finishing covering materials after blasting is completed is saved.
(8) The integral safety protection cover has good safety and stability, and can effectively remove the air wave and control flying stones not to go out; the traditional single-block cover is connected to cover and explode, so that the flying stone can fly out along with the air wave when the air wave lifts the single-block cover, and the explosion operation is very unsafe.
(9) The integral safety protection cover is covered and transferred, only 2 workers are needed each time, and the operation takes 5 minutes to complete; whereas blasting of the same area, conventional method coverage requires 8 workers to take one hour to complete, and cleaning of the covering after blasting is completed requires 8 workers to take one hour to complete. Therefore, the protective cover not only quickens the construction speed, but also saves the cost to a great extent.
(10) The integral safety shield is welded into a whole through design, and the stress is very good; the traditional material coverage is free from any mechanical connection, so that the partial failure of the coverage is very easy to cause, and the loss of the coverage material is very fast; is neither economical nor environment-friendly.
By integrating the above, the technical scheme of the invention has the advantages of simple and visual design, convenient construction and installation and convenient transportation and movement. The steel plate, the steel bar, the angle steel and the fiber cover plate are used for manufacturing a stable closed space, and the device is rigid and flexible and well used for protecting the safety of blasting operation; in addition, the safety protection cover is stable and durable, and can be used in a plurality of times.
The technical features of an integral blasting operation safety shield and a manufacturing method thereof of the present invention are further described below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic view of the overall effect structure of an integral blasting operation safety shield of the present invention;
FIG. 2 is an exploded perspective view of an integral blasting operation safety shield of the present invention;
FIG. 3 is a schematic cross-sectional view of a cross-sectional structure taken between transverse steel plates;
FIG. 4 is a schematic cross-sectional view of a steel sheet taken from between longitudinal steel sheets;
FIG. 5 is a schematic top view of the protective peripheral structure of the present invention;
FIG. 6 is a schematic view of the structure of the protective cover plate of the present invention;
in the figure:
the steel plate comprises a 1-longitudinal steel plate, a 2-transverse steel plate, a 3-upper reinforcing rib, a 4-lower reinforcing rib, a 5-inner tie bar, a 51-longitudinal tie bar, a 52-transverse tie bar, a 6-inner reinforcing rib, a 7-cover plate, a 71-cover plate exhaust hole, an 8-transverse hole tie bar, a 9-hole cover plate, a 10-protection bar and 11-hanging rings.
Detailed Description
Embodiment one:
as shown in fig. 1-4, the integral blasting operation safety shield comprises a peripheral structure of the safety shield, a cover plate 7, an opening cover plate 9, a protection rib 10 and a hanging ring 11;
the peripheral structure is characterized in that two longitudinal steel plates 1 and two transverse steel plates 2 are welded to form rectangular four peripheral edges with the bottoms being planes, the adjacent two sides of the peripheral structure are the longitudinal steel plates 1 and the transverse steel plates 2 respectively, the height of the longitudinal steel plates 1 is larger than that of the transverse steel plates 2, and the purpose is to form lateral air wave exhaust holes at the two transverse ends and reduce the internal pressure intensity of the protective shed. Generally, the height of the longitudinal steel plate 1 is 150mm to 250mm higher than the height of the transverse steel plate 2.
An upper reinforcing rib 3 and a lower reinforcing rib 4 are respectively arranged on the periphery of the outer side of the peripheral structure, and the upper reinforcing rib 3 is arranged above the lower reinforcing rib 4; the upper reinforcing rib 3 is arranged to be welded and reinforced with the inner tie bar 5 with increased strength, so that the anchoring end of the inner tie bar is ensured to be reliable. The lower reinforcing ribs 4 are provided to reinforce the rigidity of the transverse steel plate and the longitudinal steel plate.
Inside the peripheral structure, there are several inner tie bars 5 and inner reinforcing ribs 6 (see fig. 5) intersecting transversely and longitudinally, the inner tie bars 5 include transverse tie bars 52 and longitudinal tie bars 51, the longitudinal tie bars 51 are arranged between two transverse steel plates 2 at intervals, both ends of the longitudinal tie bars 51 pass through the transverse steel plates and are welded on the upper reinforcing ribs 3 in lap joint; the transverse tie bars 52 and the inner reinforcing ribs 6 are alternately arranged between the two longitudinal steel plates 1 at intervals, and both ends of the transverse tie bars 52 and the inner reinforcing ribs 6 penetrate through the longitudinal steel plates 1 and are welded on the upper reinforcing ribs 3 in a lap joint mode. The inner tie bars are arranged to strengthen the tie of the two opposite steel plates and resist the tension of blast waves to the safety protection cover; the function of the inner stiffening ribs 6 is to stiffen the inside of the safety shield. The longitudinal tie bars 51 are respectively connected with the cross connection positions of the transverse tie bars 52 and the inner reinforcing ribs 6 by adopting welding, so that the purpose of the method is to enhance the integrity of the inner tie bar grid.
The cover plate 7 is arranged above the peripheral structure and is connected with the longitudinal steel plate 1 to form a whole with the peripheral structure; the middle part of the cover plate 7 is provided with a cover plate exhaust hole 71, for example, a 1m×2m exhaust hole is reserved in the middle position of the cover plate, so that the overload caused by the instant increase of air pressure during blasting is prevented, and the protective cover is disassembled. The lateral air wave exhaust hole is provided with a transverse hole drawknot rib 8, the transverse hole drawknot rib 8 is in an ' L ' -or ' shape, a horizontal section of the transverse hole drawknot rib is welded with the cover plate 7, a vertical section of the transverse hole drawknot rib is welded with the transverse steel plate 2, and the purpose of the transverse hole drawknot rib is to strengthen the connection between the cover plate and the transverse steel plate and prevent the air wave from being punched out during external discharge. The protection rib 10 is bent into a convex structure, the larger end of the protection rib is of an open structure, the horizontal section of the open end of the convex structure is welded with the cover plate 7, the vertical section of the protection rib is welded with the longitudinal steel plate 1, and the protection rib has the function of preventing the hole cover plate 9 from flying out while the cover plate 7 is connected with the longitudinal steel plate 1, and protecting the hole cover plate 9.
The opening cover plate 9 is arranged between the cover plate 7 and the protective ribs 10 and covers the cover plate exhaust hole 71; in general, the distance between the opening cover plate 9 and the protruding top of the protective rib 10 is: 15 cm-20 cm, which has the function of effectively controlling the position of the hole cover plate 9; the opening cover plate 9 is made of fiber materials, has good strength and toughness, and aims to prevent broken stones from flying out in the process of exhausting the reserved cover plate exhaust hole 71.
The lifting rings 11 are arranged on the longitudinal steel plate 1, and the lifting rings 11 are welded on four corners selected from the top end of the longitudinal steel plate 1, so that the lifting rings are used for binding positions of steel wires, and the safety protection cover is convenient to transport.
The strength of the longitudinal steel plate 1 in this embodiment is Q235 type steel plate, and the longitudinal steel plate has a length of 6 meters, a height of 0.7 meters, and a thickness of 4 millimeters. The strength of the transverse steel plate 2 is Q235 type steel plate, the size of the transverse steel plate is 4m, the height is 0.55 m, and the thickness is 4 mm. It was found that the transverse steel plate was 150mm lower than the longitudinal steel plate.
The spacing between the transverse tie bars 52 and the inner reinforcing ribs 6 is 500mm, and the spacing between the longitudinal tie bars 51 is 500mm.
The upper reinforcing rib 3, the lower reinforcing rib 4 and the inner reinforcing rib 6 are all equilateral angle steels with the specification of L50 x 4, and the lengths of the transverse tie bars 52 and the longitudinal tie bars 51 which are respectively in lap joint welding with the upper reinforcing rib 3 are generally 50mm.
Embodiment two:
a manufacturing method of an integral blasting operation safety shield is provided, which is the manufacturing method of the integral blasting operation safety shield, and comprises the following steps:
A. welding longitudinal and transverse steel plates to form a peripheral structure of the safety shield: the longitudinal steel plates 1 and the transverse steel plates 2 are welded to form the peripheral structure of the safety shield, and full welding is required at the connecting position of the two.
B. Welding an upper layer of reinforcing ribs and a lower layer of reinforcing ribs: the upper reinforcing rib 3 and the lower reinforcing rib 4 are welded on the longitudinal steel plate 1 and the transverse steel plate 2 according to the design; the upper reinforcing rib 3 and the lower reinforcing rib 4 are respectively equal-sided angle steel with the specification of L50 x 4, one equal side of the upper reinforcing rib 3 is jointed with the transverse and longitudinal steel plates for welding, and two equal side lines of the lower reinforcing rib 4 are jointed with the transverse and longitudinal steel plates for welding.
C. Welding the inner tie bars 5 and the inner reinforcing ribs 6: before the internal tie bars 5 are welded, holes are formed in the corresponding positions of the longitudinal steel plates 1 and the transverse steel plates, and after the holes are formed, the internal tie bars 5 and the internal reinforcing ribs 6 are welded; the inner reinforcing ribs 6 and the inner tie bars 5 need to be welded with the contact positions of the upper reinforcing ribs 3 in full length, so that the strength of the anchoring ends of the inner tie bars is ensured; the main purpose of the inner reinforcing ribs 6 is to increase the rigidity of the mesh of the inner tie bars 5 so as not to be easily deformed. The intersections of the longitudinal tie bars 51, the transverse tie bars 52 and the inner reinforcing ribs 6 are welded, so that the stability and the strength of the net sheet are ensured.
D. Welding cover plate 7 and corresponding steel bars at the cover plate: the cover plate 7 and the longitudinal steel plate 1 are welded in full length, and the welding seams are required to be full; the transverse opening tie bars 8 and the protective bars 10 are welded with corresponding steel plates according to requirements. Specifically, the horizontal section of the tie bar 8 at the transverse opening is welded with the cover plate 7, the vertical section thereof is welded with the transverse steel plate 2, the horizontal section of the open end of the protective bar 10 is welded with the cover plate 7, and the vertical section thereof is welded with the longitudinal steel plate 1.
E. Laying an opening cover plate 9 and welding hanging rings 11: and covering an opening cover plate 9 at the reserved opening of the cover plate 7, and finally welding 4 hanging rings 11 on the longitudinal steel plate 1, namely finishing the welding of the blasting operation safety protection cover.
After the safety protection cover for blasting operation is welded, the safety protection cover can be transported to a construction site by using a tower crane or can be transported to the construction site by using other machines. The utility model can be used as the adjustment and the use, and is very fast and convenient.
The safety shield for blasting operation is an integral type, has simple structure, safe and reliable structure and rigid and flexible combination, not only can ensure the safety performance of the safety shield, but also can ensure the discharge of air waves during blasting operation without generating the condition of flying rocks; the safety protection cover can be used along with a crane, so that the construction speed of blasting operation is increased. The blasting operation safety protection cover provided by the invention can be used for a plurality of times by one-step molding, and can meet the safety usability of blasting operation.
The design principle of the invention is as follows:
the blasting operation safety shield is a stable closed space manufactured by steel plates, reinforcing steel bars, angle steel and fiber cover plates. Two angle steel reinforcing ribs are arranged on the outer side of the protective cover, so that the rigidity of the outer steel plate can be effectively ensured; the inner side tie bars are welded vertically and horizontally, so that the tension of blast to the device can be effectively resisted; the transverse steel plate is lower than the longitudinal steel plate (taking the first embodiment as an example, the transverse steel plate is 15cm lower than the longitudinal steel plate), a lateral exhaust channel (namely a lateral air wave exhaust hole) can be formed at the position, and a steel bar (a transverse hole drawknot bar 8) is welded and tied at the lateral exhaust channel to prevent the air wave from damaging the opposite side exhaust port; an exhaust hole (cover plate exhaust hole 71) is formed in the middle of the cover plate, a fiber cover plate (hole cover plate 9) is covered on the hole, and a reinforcing steel bar protection net (protection rib 10) is arranged on the upper side of the fiber cover plate, so that flying stones can be avoided under the condition that air waves are effectively eliminated. The effective height of the inner side of the protective cover of the first embodiment is 45cm, and the expansion of the rock volume due to blasting operation can be effectively accommodated. The safety protection cover is also provided with the hanging ring, so that the safety protection cover is convenient to adjust, transport and move.
Claims (10)
1. An integral blasting operation safety protection casing, its characterized in that: the integral blasting operation safety shield comprises a peripheral structure of the safety shield, a cover plate (7), an opening cover plate (9), a protection rib (10) and a hanging ring (11);
the peripheral structure comprises four peripheral edges with a plane bottom, wherein the four peripheral edges are formed by two longitudinal steel plates (1) and two transverse steel plates (2), the longitudinal steel plates (1) and the transverse steel plates (2) are respectively arranged on the adjacent two sides of the peripheral structure, and the height of the longitudinal steel plates (1) is larger than that of the transverse steel plates (2) to form lateral air wave exhaust holes; an upper reinforcing rib (3) and a lower reinforcing rib (4) are respectively arranged on the periphery of the outer side of the peripheral structure, and the upper reinforcing rib (3) is arranged above the lower reinforcing rib (4); the inside of the peripheral structure is provided with a plurality of inner tie bars (5) and inner reinforcing ribs (6) which are transversely and longitudinally crossed, the inner tie bars (5) comprise transverse tie bars (52) and longitudinal tie bars (51), the longitudinal tie bars (51) are arranged between two transverse steel plates (2) at intervals, and two ends of each longitudinal tie bar (51) penetrate through the transverse steel plates and are welded on the upper reinforcing ribs (3) in a lap joint manner; the transverse tie bars (52) and the inner reinforcing ribs (6) are alternately arranged between the two longitudinal steel plates (1) at intervals, and both ends of the transverse tie bars (52) and the inner reinforcing ribs (6) penetrate through the longitudinal steel plates (1) and are welded on the upper reinforcing ribs (3) in a lap joint manner;
the cover plate (7) is arranged above the peripheral structure and is connected with the longitudinal steel plate (1) to form a whole with the peripheral structure; the middle part of the cover plate (7) is provided with a cover plate exhaust hole (71); a transverse hole tie bar (8) is arranged at the lateral air wave exhaust hole, the transverse hole tie bar (8) is L-shaped or L-shaped, the horizontal section of the transverse hole tie bar is welded with the cover plate (7), and the vertical section of the transverse hole tie bar is welded with the transverse steel plate (2); the protective ribs (10) are bent into a convex structure, the larger end of the protective ribs is of an open structure, the horizontal section of the open end of the convex structure is welded with the cover plate (7), and the vertical section of the protective ribs is welded with the longitudinal steel plate (1); the opening cover plate (9) is arranged between the cover plate (7) and the protective ribs (10) and covers the cover plate exhaust hole (71);
the hanging ring (11) is arranged on the longitudinal steel plate (1).
2. An integrated blast operation safety shield according to claim 1, wherein: the longitudinal tie bars (51) are respectively welded with the joint positions of the transverse tie bars (52) and the inner reinforcing ribs (6).
3. An integrated blast operation safety shield according to claim 2, wherein: the height of the longitudinal steel plate (1) is 150 mm-250 mm higher than that of the transverse steel plate (2).
4. A unitary blast operation safety shield according to claim 3, wherein: the distance between the opening cover plate (9) and the protruding top of the protective rib (10) is as follows: 150mm to 200mm.
5. An integrated blast operation safety shield according to claim 4, wherein: the spacing between the transverse tie bars (52) and the inner reinforcing ribs (6) is 500mm, and the spacing between the longitudinal tie bars (51) is 500mm.
6. An integral blasting operation safety shield according to any of claims 1-5, wherein: the longitudinal steel plate (1), the transverse steel plate (2) and the cover plate (7) are all Q235-type steel plates with the thickness of 4 mm.
7. An integral blasting operation safety shield according to any of claims 1-5, wherein: the upper reinforcing rib (3), the lower reinforcing rib (4) and the inner reinforcing rib (6) are all equilateral angle steel with the specification of L50 x 4.
8. An integral blasting operation safety shield according to any of claims 1-5, wherein: the opening cover plate (9) is made of fiber materials.
9. A method for manufacturing an integral blasting operation safety shield, which is the method for manufacturing an integral blasting operation safety shield according to claim 1, and is characterized in that: it comprises the following steps:
A. welding longitudinal and transverse steel plates to form a peripheral structure of the safety shield: the longitudinal steel plate (1) and the transverse steel plate (2) are welded to form a peripheral structure of the safety protection cover, and the connecting positions of the longitudinal steel plate and the transverse steel plate are required to be fully welded;
B. welding an upper layer of reinforcing ribs and a lower layer of reinforcing ribs: the upper reinforcing rib (3) and the lower reinforcing rib (4) are welded on the longitudinal steel plate (1) and the transverse steel plate (2) according to a design drawing;
C. welding the inner tie bars (5) and the inner reinforcing ribs (6): before the internal tie bars (5) are welded, holes are formed in the corresponding positions of the longitudinal steel plates (1) and the transverse steel plates (2), and after the holes are formed, the internal tie bars (5) and the internal reinforcing ribs (6) are welded; the inner reinforcing rib (6) and the inner tie bar (5) are required to be welded with the contact position of the upper reinforcing rib (3) in full length, and the intersection positions of the longitudinal tie bar (51), the transverse tie bar (52) and the inner reinforcing rib (6) are required to be welded;
D. welding cover plates (7) and corresponding steel bars at the cover plates: the cover plate (7) and the longitudinal steel plate (1) are welded in full length, and the welding seams are required to be full; the transverse opening tie bars (8) and the protective bars (10) are welded with corresponding steel plates according to requirements;
E. laying an opening cover plate (9) and welding hanging rings (11): and (3) covering an opening cover plate (9) at the reserved opening of the cover plate (7), and finally welding 4 hanging rings (11) on the longitudinal steel plate (1).
10. The method for manufacturing the integral blasting operation safety shield of claim 9, wherein: the upper reinforcing rib (3) and the lower reinforcing rib (4) are respectively equal-sided angle steel with the specification of L50 x 4, one equal side of the upper reinforcing rib (3) is jointed with a longitudinal steel plate or a transverse steel plate for welding, and two equal side lines of the lower reinforcing rib (4) are jointed with the longitudinal steel plate or the transverse steel plate for welding.
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| CN110207557B (en) * | 2019-06-20 | 2024-02-27 | 保利民爆哈密有限公司 | Protective net cover for controlling blasting flying stone by rock ore |
| CN111121574A (en) * | 2019-12-25 | 2020-05-08 | 中国水利水电第十四工程局有限公司 | Movable blasting protective cover plate |
| CN113959285A (en) * | 2021-11-16 | 2022-01-21 | 中铁十二局集团有限公司 | Plateau bridge pile foundation granite inclined rock shallow hole drilling core blasting construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100641751B1 (en) * | 2006-08-28 | 2006-11-02 | 강기석 | Rock cover for safety |
| JP2008089261A (en) * | 2006-10-04 | 2008-04-17 | Central Nippon Expressway Co Ltd | Scatter prevention tool for blasting, and blasting method |
| RU74652U1 (en) * | 2008-03-11 | 2008-07-10 | Сергей Николаевич Кучихин | MULTI-EMPTY REINFORCED CONCRETE PLATE |
| CN204007366U (en) * | 2014-06-05 | 2014-12-10 | 马鞍山矿山研究院爆破工程有限责任公司 | A kind of flexibility is adjustable blasting flyrock protection network |
| CN207556381U (en) * | 2017-09-27 | 2018-06-29 | 广西建工集团第五建筑工程有限责任公司 | A kind of monoblock type bursting work safty shield |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2009045593A2 (en) * | 2007-07-06 | 2009-04-09 | Modumetal, Llc | Nanolaminate-reinforced metal composite tank material and design for storage of flammable and combustible fluids |
| US8156708B2 (en) * | 2009-12-16 | 2012-04-17 | Southwest Research Institute | Modular system for containment of fragments and diffusion of gases from explosion |
-
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- 2017-09-27 CN CN201710887420.XA patent/CN107702607B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100641751B1 (en) * | 2006-08-28 | 2006-11-02 | 강기석 | Rock cover for safety |
| JP2008089261A (en) * | 2006-10-04 | 2008-04-17 | Central Nippon Expressway Co Ltd | Scatter prevention tool for blasting, and blasting method |
| RU74652U1 (en) * | 2008-03-11 | 2008-07-10 | Сергей Николаевич Кучихин | MULTI-EMPTY REINFORCED CONCRETE PLATE |
| CN204007366U (en) * | 2014-06-05 | 2014-12-10 | 马鞍山矿山研究院爆破工程有限责任公司 | A kind of flexibility is adjustable blasting flyrock protection network |
| CN207556381U (en) * | 2017-09-27 | 2018-06-29 | 广西建工集团第五建筑工程有限责任公司 | A kind of monoblock type bursting work safty shield |
Non-Patent Citations (1)
| Title |
|---|
| 紧邻建筑物的控制爆破施工防护;肖洪波;《人民长江》;20070331;第38卷(第03期);第53-54页 * |
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| CN107702607A (en) | 2018-02-16 |
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