CN211397585U

CN211397585U - Tunnel reinforcing device

Info

Publication number: CN211397585U
Application number: CN201922170285.4U
Authority: CN
Inventors: 俞凡
Original assignee: Anhui Jianzhu University
Current assignee: Anhui Jianzhu University
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-09-01
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a tunnel reinforcing apparatus, including the steelframe main part, the steelframe main part includes inner support frame and outer support frame, inner support frame is located steelframe main part bottom, outer support frame is installed in the inner support frame top, the bradyseism groove has been seted up to outer support frame bottom, the spring is installed to bradyseism groove inner chamber, the utility model relates to a building technical field. This tunnel reinforcing apparatus has solved current tunnel and has consolidated arch steelframe simple structure, the resistance to compression effect that takes precautions against earthquakes is poor, single steelframe directly bears the problem that influences life when the tunnel massif has vibration and pressure, spring and semi-circular support frame all carry out elastic support to the outer support frame, like this when outer support frame receives the shaking force spring and semi-circular support frame support it and the shock attenuation, reduce vibrations and transmit on the inner support frame, and elastic support makes outer support frame have certain compressive resistance, increase overall stability and life.

Description

Tunnel reinforcing device

Technical Field

The utility model relates to a building technical field specifically is a tunnel reinforcing apparatus.

Background

In a mountain tunnel or underground engineering constructed by a drilling and blasting method, in a tunnel body section with poor surrounding rocks, the deformation of primary support in the construction process is overlarge and the deformation rate is overlarge due to the fact that the actual surrounding rocks are not consistent with the design conditions. In order to prevent collapse, double-layer or multi-layer steel arch frames are often adopted for reinforcing support, namely, one or two layers of reinforced structures of the concrete spraying and the steel arch frames are added on the outer layer on the basis of the original concrete spraying and steel arch frames so as to keep the primary stability of the surrounding rock.

But the arch steelframe is consolidated to current tunnel simple structure, and the resistance to compression effect that takes precautions against earthquakes is poor, and single steelframe directly bears when the tunnel massif has vibration and pressure and influences life to the security has been reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a tunnel reinforcing apparatus has solved current tunnel and has consolidated arch steelframe simple structure, and the resistance to compression effect that takes precautions against earthquakes is poor, and single steelframe directly bears the problem that influences life when the tunnel massif has vibration and pressure.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the tunnel reinforcing device comprises a steel frame main body, wherein the steel frame main body comprises an inner supporting frame and an outer supporting frame, the inner supporting frame is located at the bottom of the steel frame main body, the outer supporting frame is installed at the top of the inner supporting frame, a shock absorption groove is formed in the bottom of the outer supporting frame, a spring is installed in an inner cavity of the shock absorption groove and fixed to the top surface of the inner supporting frame, a semicircular supporting frame is installed on one side of the spring, and the semicircular supporting frame is fixed to the top surface of the inner supporting frame.

Preferably, the bottom parts of the two ends of the inner support frame are provided with reinforcing seats, and the top surface of each reinforcing seat is provided with a clamping groove.

Preferably, the bottoms of the two ends of the outer support frame are fixedly connected with clamping blocks, and the clamping blocks are located in the inner cavity of the clamping groove.

Preferably, the side wall of the inner cavity of the steel frame body is inserted with an anchor rod in a penetrating mode, and the anchor rod penetrates through the inner support frame and the outer support frame.

Preferably, the side wall of the inner cavity of the inner support frame is fixedly connected with an anti-seepage layer, and the anti-seepage layer is positioned at one end of the anchor rod.

Preferably, the bottom end of one side of the reinforcing seat is provided with a fixing plate, and the top of the fixing plate is inserted with a ground nail.

Advantageous effects

The utility model provides a tunnel reinforcing apparatus. The method has the following beneficial effects:

1. the tunnel reinforcing device comprises an inner support frame and an outer support frame through a steel frame main body, wherein the outer support frame is arranged at the top of the inner support frame, reinforcing seats are arranged at two ends of the inner support frame, two ends of the outer support frame are arranged at the tops of the reinforcing seats, a concave buffering groove is formed in the bottom of the outer support frame, a spring and a semicircular support frame are arranged on the surface of the top of the inner support frame, the semicircular support frame and the spring are both arranged in an inner cavity of the buffering groove, the tops of two sides of the semicircular support frame are in contact with the top of the inner cavity of the buffering groove, so that the spring and the semicircular support frame both elastically support the outer support frame, when the outer support frame is subjected to vibration force, the spring and the semicircular support frame support the outer support frame to support and absorb the vibration, the vibration is transmitted to the inner support frame, and the elastic support enables the outer support frame to have certain compressive resistance, and the buffering effect is achieved by matching the, the overall stability and the service life are increased.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the inner steel frame structure of the present invention;

fig. 3 is a schematic view of the outer steel frame structure of the present invention.

In the figure: 1. a steel frame main body; 2. an inner support frame; 3. an outer support frame; 4. a cushioning tank; 5. a semicircular supporting frame; 6. a spring; 7. an anti-permeation layer; 8. an anchor rod; 9. a reinforcement base; 10. a card slot; 11. a clamping block; 12. a fixing plate; 13. and (5) ground nail.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a tunnel reinforcing apparatus, which comprises: a tunnel reinforcing device comprises a steel frame main body 1, the steel frame main body 1 comprises an inner support frame 2 and an outer support frame 3, the inner support frame 2 is positioned at the bottom of the steel frame main body 1, the outer support frame 3 is arranged at the top of the inner support frame 2, a shock absorption groove 4 is arranged at the bottom of the outer support frame 3, a spring 6 is arranged in an inner cavity of the shock absorption groove 4, the spring 6 is fixed on the top surface of the inner support frame 2, a semicircular support frame 5 is arranged at one side of the spring 6, the semicircular support frame 5 is fixed on the top surface of the inner support frame 2, reinforcing seats 9 are arranged at the bottoms of two ends of the inner support frame 2, a clamping groove 10 is arranged on the top surface of the reinforcing seats 9, clamping blocks 11 are fixedly connected at the bottoms of two ends of the outer support frame 3, the clamping blocks 11 are positioned in an inner cavity of the clamping groove 10, an anchor rod, the impermeable layer 7 is positioned at one end of the anchor rod 8, the bottom end of one side of the reinforcing seat 9 is provided with a fixing plate 12, the top of the fixing plate 12 is penetrated and inserted with a ground nail 13, the steel frame main body 1 comprises an inner supporting frame 2 and an outer supporting frame 3, the outer supporting frame 3 is arranged at the top of the inner supporting frame 2, the reinforcing seats 9 are arranged at two ends of the inner supporting frame 2, two ends of the outer supporting frame 3 are arranged at the top of the reinforcing seat 9, the bottom of the outer supporting frame 3 is provided with a concave shock absorption groove 4, the surface of the top of the inner supporting frame 2 is provided with a spring 6 and a semicircular supporting frame 5, the semicircular supporting frame 5 and the spring 6 are both positioned in the inner cavity of the shock absorption groove 4, and the tops of two sides are contacted with the top of the inner cavity of the shock absorption groove 4, so that the spring 6 and the semicircular supporting frame 5 both elastically support the outer supporting, the vibration is reduced and transmitted to the inner support frame 2, and the outer support frame 3 has certain compressive resistance due to elastic support, so that the spring 6, the semicircular support frame 5 and the shock absorption groove 4 are matched with the combination arrangement of the inner support frame 2 and the outer support frame 3, the overall steel frame main body 1 has specific shock absorption and compression resistance effects, the overall stability is improved, and the service life is prolonged; when 8 anchor rods run through behind the steelframe main part 1, install prevention of seepage permeable stratum 7 at inner support frame 2 inner chamber wall, prevention of seepage permeable stratum 7 adopts waterproof material, in the concrete of inner chamber later stage is easily penetrated to the water of tunnel inner chamber infiltration like this, thereby avoid influencing concrete life, the fixture block 11 card of the both ends bottom of outer support frame 3 is gone into in the middle of strengthening the top draw-in groove 10 inner chamber of seat 9, make like this between its outer support frame 3 and the inner support frame 2 more firm avoid the skew, it is equipped with fixed plate 12 to strengthen seat 9 one side, it is more firm to run through fixed plate 12 with the ground nail 13 and drive into ground like this.

When the vibration damping device works, the outer support frame 3 is arranged at the top of the inner support frame 2, the bottom clamping blocks 11 at the two ends of the outer support frame 3 are clamped in the inner cavity of the top clamping groove 10 of the bottom reinforcing seat 9 of the inner support frame 2, then the anchor rod 8 penetrates through the steel frame main body 1 and is nailed into the soil layer, then the anti-seepage layer 7 is fixed on the inner cavity wall of the inner support frame 2, and penetrates through the fixing plate 12 through the ground nail 13 and is nailed into the ground for reinforcement, the bottom of the outer support frame 3 is provided with the sunken vibration damping groove 4, the spring 6 and the semicircular support frame 5 are arranged on the top surface of the inner support frame 2, the semicircular support frame 5 and the spring 6 are both arranged in the inner cavity of the vibration damping groove 4, the tops at the two sides are in contact with the tops of the inner cavity of the vibration damping groove 4, so that the spring 6 and the semicircular support frame 5 elastically support and damp, the vibration is reduced and transmitted to the inner support frame 2, and the outer support frame 3 has certain compressive resistance due to elastic support, so that the spring 6, the semicircular support frame 5 and the shock absorption groove 4 are matched with the combination of the inner support frame 2 and the outer support frame 3, the overall steel frame main body 1 has specific shock absorption and compression resistance effects, the overall stability is improved, and the service life is prolonged.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tunnel reinforcing apparatus, includes steelframe main part (1), its characterized in that: the steel frame main body (1) comprises an inner support frame (2) and an outer support frame (3), the inner support frame (2) is located at the bottom of the steel frame main body (1), the outer support frame (3) is installed at the top of the inner support frame (2), a shock absorption groove (4) is formed in the bottom of the outer support frame (3), a spring (6) is installed in the inner cavity of the shock absorption groove (4), the spring (6) is fixed on the top surface of the inner support frame (2), a semicircular support frame (5) is installed on one side of the spring (6), and the semicircular support frame (5) is fixed on the top surface of the inner support frame (2).

2. A tunnel strengthening device according to claim 1, wherein: the bottom parts of two ends of the inner support frame (2) are provided with reinforcing seats (9), and the top surface of each reinforcing seat (9) is provided with a clamping groove (10).

3. A tunnel strengthening device according to claim 1, wherein: the bottom parts of the two ends of the outer support frame (3) are fixedly connected with clamping blocks (11), and the clamping blocks (11) are positioned in the inner cavities of the clamping grooves (10).

4. A tunnel strengthening device according to claim 1, wherein: the steel frame main part (1) inner chamber lateral wall runs through to be pegged graft and has stock (8), and stock (8) run through inner support frame (2) and outer support frame (3).

5. A tunnel strengthening device according to claim 1, wherein: the side wall of the inner cavity of the inner support frame (2) is fixedly connected with an anti-seepage layer (7), and the anti-seepage layer (7) is positioned at one end of the anchor rod (8).

6. A tunnel strengthening device according to claim 2, wherein: and a fixing plate (12) is installed at the bottom end of one side of the reinforcing seat (9), and a ground nail (13) is inserted into the top of the fixing plate (12) in a penetrating manner.