CN211740021U - Protective layer excavation blasting structure - Google Patents
Protective layer excavation blasting structure Download PDFInfo
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- CN211740021U CN211740021U CN201821849922.XU CN201821849922U CN211740021U CN 211740021 U CN211740021 U CN 211740021U CN 201821849922 U CN201821849922 U CN 201821849922U CN 211740021 U CN211740021 U CN 211740021U
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Abstract
The utility model relates to a protective layer excavation blasting structure, which comprises a packway protective layer, a horizontal blasting hole, a vertical blasting hole and a drilling working platform; slope anchor bars and platform anchor bars are arranged on the soil body on the outer side, and a drilling working platform is arranged on the soil body on the outer side and comprises a bottom supporting plate, platform supporting columns, connecting cross rods, supporting column reinforcing ribs and a drilling platform plate; a plate bottom buttress and a movable runner are arranged between the bottom supporting plate and the outer soil body; the upper part of the bottom supporting plate is provided with a plurality of platform supporting columns, and a connecting cross rod is arranged between every two adjacent platform supporting columns; set up elevation adjusting bolt on the platform shore, set up between platform shore and the bottom sprag board and prop the post strengthening rib, set up angle modulation axle and slant dead lever between platform shore and the drilling platform board. The utility model has the advantages that: the utility model discloses the support drilling machine is laid the structure and is assembled at the scene, is removed conveniently, with packway protective layer firm in connection, can save site operation measure expense, reduces the degree of difficulty of leading the hole construction.
Description
Technical Field
The utility model relates to a protective layer excavation blasting structure belongs to the geotechnical engineering field, is applicable to the side slope excavation engineering.
Background
When the rock soil side slope is excavated, the problem of rock soil side slope excavation is often encountered. In order to reduce the damage of construction to the surrounding environment, it is necessary to research the protective layer excavation blasting structure, so as to save the on-site construction measure cost and reduce the difficulty of the hole guiding construction.
The protective layer excavation blasting structure is characterized in that two rows of pre-splitting holes for construction and structural pre-splitting are arranged on an excavation surface at a certain distance, the excavation surface is divided into two main blasting areas, and the main blasting holes, the buffer holes and the pre-splitting holes are independently formed in the arrangement sequence; during blasting, a differential blasting network is adopted, harmful factors such as blasting vibration and the like are well controlled, two pre-cracks are formed respectively, and two main blasting areas are blasted respectively; the double-presplitting control blasting method not only reduces the main seismic waves, but also overcomes the convergence characteristic of presplitting gaps, forms a better shock absorption effect to protect bedrocks, has large excavation volume of one blasting cycle, and better solves the contradiction relationship between efficient rock breaking and bedrock protection. . Although the construction method can accurately control the excavation size and improve the construction efficiency to a certain extent, the construction method has improvements in the aspects of engineering applicability and the like.
In view of this, in order to effectively reduce the difficulty of site excavation and improve the efficiency of site construction, the present invention is urgently needed to provide a protective layer excavation blasting structure which can not only improve the quality efficiency and the drilling positioning accuracy of site construction, but also reduce the difficulty of site construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough among the prior art, providing one kind not only can promote site operation quality efficiency and drilling positioning accuracy, can reduce the protective layer excavation blasting structure of the site operation degree of difficulty moreover.
The protective layer excavation blasting structure comprises a pavement protective layer, an outer soil body, a horizontal blasting hole, a vertical blasting hole and a drilling working platform; slope anchor bars and platform anchor bars are arranged on the soil body on the outer side, and a drilling working platform is arranged on the soil body on the outer side and comprises a bottom supporting plate, platform supporting columns, connecting cross rods, supporting column reinforcing ribs and a drilling platform plate; a plate bottom buttress and a movable runner are arranged between the bottom supporting plate and the outer soil body; the upper part of the bottom supporting plate is provided with a plurality of platform supporting columns, and a connecting cross rod is arranged between every two adjacent platform supporting columns; an elevation adjusting bolt is arranged on the platform supporting column, a supporting column reinforcing rib is arranged between the platform supporting column and the bottom supporting plate, and an angle adjusting shaft and an oblique fixing rod are arranged between the platform supporting column and the drilling platform plate; the platform support column is provided with a connecting lantern ring; the rod bottom connecting ring connected with the bottom of the positioning rod is connected with the slope anchor bar; a berm protective layer is arranged above the outer soil body, and a drilling machine is arranged on the drilling working platform and a horizontal blast hole is drilled in the berm protective layer; and drilling machines are arranged on the packway protective layer and vertical blast holes are drilled.
Preferably, the method comprises the following steps: the cross section of the connecting lantern ring is in a ring shape, the inner diameter of the connecting lantern ring is 5-20 mm larger than the diameter of the platform support column, the connecting lantern ring is provided with a connecting positioning rod and a lantern ring bolt, and the connecting lantern ring is firmly connected with the platform support column through the lantern ring bolt.
The utility model has the advantages that:
(1) the utility model discloses the support drilling machine is laid the structure and is assembled at the scene, is removed conveniently, with packway protective layer firm in connection, can save site operation measure expense, reduces the degree of difficulty of leading the hole construction.
(2) The utility model discloses drilling work platform is high with outside soil body joint strength, and the on-the-spot removal is convenient, and top elevation and inclination can be according to construction needs dynamic adjustment.
Drawings
Fig. 1 is the utility model discloses protective layer excavation blasting structure sketch map.
Description of reference numerals: 1-a horse-race protection layer; 2-outside soil; 4-slope anchor bars; 5-platform anchor bars; 6-bottom support plate; 7-bottom buttress; 8-moving the runner; 9-a platform support column; 10-connecting the cross bar; 11-height adjusting bolts; 12-pillar reinforcement bars; 13-drilling a platform plate; 14-an angle adjustment shaft; 15-oblique fixing rod; 16-a connecting collar; 17-connecting the positioning rod; 18-sole connection ring; 19-a collar bolt; 20-horizontal blast holes; 21-vertical blast hole; 22-drilling work platform.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
As shown in fig. 1, in the protective layer excavation blasting structure, slope anchor bars 4 and platform anchor bars 5 are arranged on an outer soil body 2, a drilling work platform 22 is arranged on the outer soil body 2, and a slab bottom buttress 7 and a movable runner 8 are arranged between a bottom supporting plate 6 and the outer soil body 2; 4-6 platform supporting columns 9 are arranged at the upper part of the bottom supporting plate 6, and a connecting cross rod 10 is arranged between the adjacent platform supporting columns 9; an elevation adjusting bolt 11 is arranged on the platform support column 9, a support column reinforcing rib 12 is arranged between the platform support column and the bottom support plate 6, and an angle adjusting shaft 14 and an oblique fixing rod 15 are arranged between the platform support column and a drilling platform plate 13; a connecting lantern ring 16 is arranged on the platform support column 9; a rod bottom connecting ring 18 connected with the bottom of the positioning rod 17 is connected with the slope anchor bars 4; arranging a drilling machine on the drilling working platform 22, and drilling a horizontal blast hole 20 into the packway protection layer 1; arranging a drilling machine on the packway protective layer 1, and drilling a vertical blast hole 21; blasting construction is synchronously performed through the horizontal blasting holes 20 and the vertical blasting holes 21.
The street protection layer 1 has a width of 2m and a height of 1 m.
The outside soil body 2 is weakly weathered sandstone.
The collar bolt 3 is a hexagon bolt with the diameter of 10 mm.
The slope anchor bars 4 and the platform anchor bars 5 are formed by cutting twisted steel bars with the diameter of 32 mm.
The drilling working platform 22 comprises a bottom support plate 6, a platform support column 9, a connecting cross rod 10, a support column reinforcing rib 12 and a drilling platform plate 13; the bottom support plate 6 is a steel plate with the thickness of 10 mm; the platform support column 9 is made of a steel pipe with the outer diameter of 100mm and the wall thickness of 2 mm; the connecting cross rod 10 is formed by cutting a steel pipe with the diameter of 60 mm; the support column reinforcing rib 12 is formed by cutting a steel pipe with the diameter of 30 mm; the drilling platform plate 13 is formed by cutting a steel plate with the thickness of 2 mm.
The plate bottom buttress 7 is formed by rolling a steel plate with the thickness of 10 mm.
The movable rotating wheel 8 adopts a 10-inch universal rotating wheel.
The elevation adjusting bolt 11 is formed by rolling a steel pipe with the inner diameter of 100 mm.
The angle adjusting shaft 14 is a spherical hinge member.
The oblique fixing rod 15 is formed by cutting a steel pipe with the diameter of 60 mm.
The cross section of the connecting lantern ring 16 is circular ring shape, and the inner diameter of the connecting lantern ring is 15mm larger than that of the platform support column 42.
The connecting and positioning rod 17 is made of a steel pipe with the outer diameter of 48 mm.
The sole connecting ring 18 is a spherical hinge member.
The collar bolts 19 are made of a threaded steel bar with a diameter of 25 mm.
The aperture of each of the horizontal blasting holes 20 and the vertical blasting holes 21 is 90 mm.
Claims (2)
1. The utility model provides a protective layer excavation blasting structure which characterized in that: the device comprises a pavement protection layer (1), an outer side soil body (2), a horizontal blast hole (20), a vertical blast hole (21) and a drilling working platform (22); slope anchor bars (4) and platform anchor bars (5) are arranged on the outer soil body (2), a drilling working platform (22) is arranged on the outer soil body (2), and the drilling working platform (22) comprises a bottom supporting plate (6), a platform support column (9), a connecting cross rod (10), a support column reinforcing rib (12) and a drilling platform plate (13); a plate bottom buttress (7) and a movable runner (8) are arranged between the bottom supporting plate (6) and the outer side soil body (2); 4-6 platform supporting columns (9) are arranged at the upper part of the bottom supporting plate (6), and a connecting cross rod (10) is arranged between every two adjacent platform supporting columns (9); an elevation adjusting bolt (11) is arranged on the platform supporting column (9), a supporting column reinforcing rib (12) is arranged between the platform supporting column (9) and the bottom supporting plate (6), and an angle adjusting shaft (14) and an oblique fixing rod (15) are arranged between the platform supporting column (9) and the drilling platform plate (13); a connecting lantern ring (16) is arranged on the platform support column (9); a rod bottom connecting ring (18) connected with the bottom of the positioning rod (17) is connected with the slope anchor bars (4); a packway protection layer (1) is arranged above the outer side soil body (2), a drilling machine is arranged on the drilling working platform (22), and a horizontal blast hole (20) is drilled into the packway protection layer (1); and a drilling machine is arranged on the packway protection layer (1) and a vertical blast hole (21) is drilled.
2. The protective layer blasting structure of excavation of claim 1, wherein: the cross section of the connecting sleeve ring (16) is in a circular ring shape, the inner diameter of the connecting sleeve ring is 5-20 mm larger than the diameter of the platform support pillar (9), the connecting sleeve ring (16) is provided with a connecting positioning rod (17) and a sleeve ring bolt (19), and the connecting sleeve ring (16) is firmly connected with the platform support pillar (9) through the sleeve ring bolt (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821849922.XU CN211740021U (en) | 2018-11-09 | 2018-11-09 | Protective layer excavation blasting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821849922.XU CN211740021U (en) | 2018-11-09 | 2018-11-09 | Protective layer excavation blasting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211740021U true CN211740021U (en) | 2020-10-23 |
Family
ID=72848766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821849922.XU Active CN211740021U (en) | 2018-11-09 | 2018-11-09 | Protective layer excavation blasting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211740021U (en) |
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2018
- 2018-11-09 CN CN201821849922.XU patent/CN211740021U/en active Active
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