CN219101394U

CN219101394U - Explosion construction protector is used in construction of big section soft rock tunnel

Info

Publication number: CN219101394U
Application number: CN202223356551.0U
Authority: CN
Inventors: 李蒙冉; 靳琪; 马闪闪; 刘孟林; 李长征; 初霞; 张章; 王阳; 朱少彬; 高博; 秦永磊
Original assignee: Henan First Highway Engineering Co ltd; Henan Highway Engineering Group Co Ltd
Current assignee: Henan First Highway Engineering Co ltd; Henan Highway Engineering Group Co Ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-05-30
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a blasting construction protection device for large-section soft rock tunnel construction, which comprises a soft rock tunnel, wherein a protection device is arranged in the soft rock tunnel, the protection device comprises four telescopic support rods arranged on the periphery of the bottom and a telescopic support column arranged in the center of the bottom, the telescopic section of the telescopic support rod is arranged at the upper part and the telescopic section of the telescopic support column is arranged at the lower part, the upper end of the telescopic section of the telescopic support rod is fixedly connected with an arc-shaped large-section extension plate, the upper end of the non-telescopic section of the telescopic support column is fixedly connected with a storage plate with arc-shaped through grooves, the extension plates are respectively inserted into the through grooves at the two ends of the storage plate from two sides, and the upper surface of the storage plate is provided with a rubber anti-collision plate. The protection device can adjust the width of the protection area aiming at the large section, has better safety and stability, and can better ensure the personal safety of constructors when the large section soft rock tunnel is constructed and blasted.

Description

Explosion construction protector is used in construction of big section soft rock tunnel

Technical Field

The utility model relates to the technical field of tunnel construction equipment, in particular to a blasting construction protection device for large-section soft rock tunnel construction.

Background

Along with the large-scale development of civil engineering such as railways, highways and the like, tunnel construction is always indispensable, weak surrounding rock is a special geological phenomenon, deformation is very easy to occur in the construction process, the deformation has great influence on the engineering, and the tunnel is seriously and even completely destroyed. In the process of excavating a soft rock tunnel, disturbance and damage of blasting to surrounding rock and adjacent chambers are reduced as much as possible, the speed of super-underexcavation and blasting vibration is strictly controlled, and the self-bearing capacity of the surrounding rock is fully protected. The impact of the explosion of the previous chamber on the explosion vibration speed of the adjacent chamber is controlled within 5 cm/s.

In the blasting process of soft rock tunnel among the prior art, often accompany the rock mass that drops, the rock mass quantity that drops especially increases in the big section position department of tunnel, has set up corresponding protector for guaranteeing constructor's personal safety, and protector span that uses at present is less, is difficult to adjust to can not be applicable to the rock mass protection of big section position department, protector stability security is not good enough simultaneously, probably causes the emergence of accident.

Disclosure of Invention

The utility model aims to provide a blasting construction protection device for large-section soft rock tunnel construction, which can adjust the width of a protection area aiming at the large section, has better safety and stability, and can better ensure the personal safety of constructors during the large-section soft rock tunnel construction blasting.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a blasting construction protector for large-section soft rock tunnel construction, includes the soft rock tunnel, the soft rock tunnel in be equipped with protector, protector including setting up four flexible bracing pieces all around in the bottom and setting up the flexible support column at the bottom center, flexible bracing piece flexible section at last and flexible support column flexible section under, flexible bracing piece flexible section upper end connect and be fixed with curved large-section extension board, flexible support column non-flexible section upper end connect and be fixed with the take-in plate that has the arc through groove, the extension board insert the logical inslot portion at take-in plate both ends respectively from both sides, take-in plate upper surface be equipped with rubber buffer plate, rubber buffer plate both ends all be equipped with the pivot, the pivot on the parcel have the anticollision area, the anticollision area stretch out to both sides and be connected to the fixed plate, the fixed plate weld in the extension board lateral surface, flexible support column non-flexible section peripheral sliding mounting have the sliding sleeve, the sliding sleeve all around through rotating the seat outwards be connected with the connecting rod, the outer end all through rotating the connecting rod in the fixed connection at the fixed connection of flexible support column section under the fixed connection of the support column.

Further, a rolling wheel is arranged at the bottom of the non-telescopic section of the telescopic supporting rod.

Further, the rubber anti-collision plate is fixed above the storage plate through the bolt seat.

Furthermore, the positioning plugboard is cross-shaped, and sharp plugboards are arranged on the periphery of the lower surface.

Furthermore, locking nuts are arranged on the outer side faces of the non-telescopic sections of the telescopic supporting rods and the telescopic supporting columns.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the telescopic support rod and the telescopic support column structure are arranged, and the storage plate and the extension plate structure are matched, so that the width of a protection area can be flexibly adjusted according to a large section, and meanwhile, the structure such as the connecting rod and the sliding sleeve is arranged, so that the safety and stability are better, and the personal safety of constructors can be better ensured when the large section soft rock tunnel is constructed and blasted.

Drawings

FIG. 1 is a schematic view of the installation structure of the protection device in a soft rock tunnel (part of the outer wall of the tunnel is removed);

FIG. 2 is a schematic view of a sliding sleeve connecting structure of the present utility model;

FIG. 3 is a schematic view of a positioning board according to the present utility model;

in the figure: 1. a soft rock tunnel; 2. a telescopic support rod; 3. a telescopic support column; 4. a rubber anti-collision plate; 5. a storage plate; 6. an anti-collision belt; 7. a rotating shaft; 8. a fixing plate; 9. an extension plate; 10. a bolt seat; 11. a sliding sleeve; 12. a rotating seat; 13. a connecting rod; 14. and positioning the plugboard.

Detailed Description

The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.

As shown in fig. 1, the utility model discloses a set up in current soft rock tunnel 1, the bottom mainly includes flexible bracing piece 2 and flexible support column 3, flexible section upper end connection of flexible bracing piece 2 is fixed with curved big section extension board 9, flexible support column 3 is connected and is fixed with the take-in plate 5 that has the arc through groove on the non-flexible section upper end, extension board 9 inserts respectively to the through groove inside of take-in plate 5 both ends from both sides, take-in plate 5 upper surface is equipped with rubber anticollision board 4, rubber anticollision board 4 both ends all are equipped with pivot 7, the winding parcel has anticollision area 6 on the pivot 7, anticollision area 6 stretches out to both sides and is connected to fixed plate 8, fixed plate 8 welds at extension board 9 lateral surface;

as shown in fig. 2, a sliding sleeve 11 is slidably arranged on the periphery of a non-telescopic section of the telescopic support column 3, connecting rods 13 are outwards connected to the periphery of the sliding sleeve 11 through rotating seats 12, the outer ends of the connecting rods 13 are connected to fixed sleeves through rotating seats 12, the fixed sleeves are welded and fixed on the periphery of a telescopic section of the telescopic support column 2, the lower end of the telescopic section of the telescopic support column 3 is connected with a positioning plugboard 14, a rubber anti-collision board 4 is fixed above a storage board 5 through a bolt seat, and the telescopic support column 2 and the non-telescopic section of the telescopic support column 3 are provided with locking nuts;

as shown in fig. 3, rolling wheels are arranged at the bottom of the non-telescopic section of the telescopic support rod 2, the positioning plugboards 14 are cross-shaped, and sharp plugboards are arranged around the lower surface.

When the telescopic support rod is specifically used, the telescopic support rods 2 can be outwards moved according to the large section width of the soft rock tunnel 1 on two sides, the extension plate 9 is driven to be pulled out from the inside of the through groove of the storage plate 5, the anti-collision belt 6 is pulled out, the width of the protection area is expanded, meanwhile, the height of the connecting rod 13 is reduced, the sliding sleeve 11 is driven to downwards move along the telescopic support column 3, after the required protection width is reached, the telescopic lengths of all the telescopic support rods 2 are firstly fixed through the locking nuts, then the positioning insertion plate 14 is pulled out downwards and embedded into the ground of the soft rock tunnel, the locking nuts of the telescopic support column 3 are screwed down, the telescopic lengths are fixed, and stable installation work is completed.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a blasting construction protector is used in construction of big section soft rock tunnel, includes soft rock tunnel, its characterized in that: the soft rock tunnel in be equipped with protector, protector including setting up four flexible bracing pieces all around in the bottom and setting up the flexible support column at the bottom center, flexible bracing piece flexible section at last and flexible support column flexible section be under, flexible support column flexible section upper end connect and be fixed with curved big section extension board, flexible support column non-flexible section upper end connect and be fixed with the take-in plate that has the arc through groove, the extension board insert the through groove inside at take-in plate both ends respectively from both sides, take-in plate upper surface be equipped with rubber anticollision board, rubber anticollision board both ends all be equipped with the pivot, the pivot on the winding parcel have the anticollision area, the anticollision area stretch out to both sides and be connected to the fixed plate on, the fixed plate weld in the extension board lateral surface, flexible support column non-flexible section peripheral slidable mounting have the sliding sleeve, the sliding sleeve all around through rotating the seat outwards be connected with the connecting rod, the connecting rod outer end all connect on the fixed sleeve through rotating the seat, the fixed sleeve fix at the flexible lower extreme of the flexible support column of peripheral support column, flexible section location picture peg.

2. The blasting construction protection device for large-section soft rock tunnel construction according to claim 1, wherein: the bottom of the non-telescopic section of the telescopic support rod is provided with a rolling wheel.

3. The blasting construction protection device for large-section soft rock tunnel construction according to claim 1, wherein: the rubber anti-collision plate is fixed above the storage plate through a bolt seat.

4. The blasting construction protection device for large-section soft rock tunnel construction according to claim 1, wherein: the positioning plugboard is cross-shaped, and sharp plugboards are arranged around the lower surface of the positioning plugboard.

5. The blasting construction protection device for large-section soft rock tunnel construction according to claim 1, wherein: the outer side surfaces of the non-telescopic sections of the telescopic support rods and the telescopic support columns are respectively provided with a lock nut.