CN213510656U - Big pipe roof reinforced structure - Google Patents

Abstract

The application relates to a big pipe shed reinforcing structure, which comprises a plurality of grouting pipes inserted into a stratum along the length direction of a tunnel and used for reinforcing the stratum in front of an excavation face, and a concrete cover arch arranged outside the tunnel and used for guiding the grouting pipes inserted into the stratum, wherein the concrete cover arch comprises an arch frame arranged on the ground as a framework, a plurality of orifice pipes arranged on the arch frame and used for the grouting pipes to pass through, and a concrete layer coated outside the arch frame and the orifice pipes, the outer peripheral surface of the arch frame is provided with a plurality of key slots used for clamping the orifice pipes, and the arch frame is provided with a plurality of fixing components used for fixing the orifice pipes on the arch frame; the fixing assembly comprises an arc plate used for pressing the orifice pipe and a plurality of locking bolts used for connecting the arc plate and the arch frame. The orifice pipe in this application is fixed effectual, and is difficult not hard up to reduce follow-up maintenance, reinforced possibility, promoted holistic life, be favorable to energy-concerving and environment-protective.

Description

Big pipe roof reinforced structure

Technical Field

The application relates to the field of big pipe sheds, in particular to a big pipe shed reinforcing structure.

Background

The large pipe shed supporting structure is characterized in that a group of steel pipes are driven into the stratum along drilled holes outside an excavation outline, and are combined with a steel arch to form a strong shed frame pre-supporting and reinforcing system to support the load from the upper part of a pipe shed, and grouting is performed on the stratum through grouting holes in the steel pipes so as to reinforce the weak and broken stratum and improve the self-stabilizing capability of the stratum.

The existing large pipe shed generally comprises a plurality of grouting pipes and a concrete arch, wherein the grouting pipes are inserted into a stratum along the length direction of a tunnel and are used for reinforcing the stratum in front of an excavation surface, the concrete arch is arranged outside the tunnel and plays a role in guiding the grouting pipes inserted into the stratum, and the concrete arch comprises an arch frame serving as a framework, a plurality of orifice pipes arranged on the arch frame and used for the grouting pipes to pass through and a concrete outer layer coated outside the arch frame.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the concrete cover encircles inner structure unstability, and the pore mouth pipe is not hard up easily in the work progress, and then can not play good guide effect to the slip casting pipe to lead to the integrated device to need often maintain, consolidate etc. and be unfavorable for energy-concerving and environment-protective.

SUMMERY OF THE UTILITY MODEL

In order to improve the unstable condition of concrete cover arch inner structure, this application provides a big pipe shed reinforced structure.

The application provides a big pipe roof reinforced structure adopts following technical scheme:

a large pipe shed reinforcing structure comprises a plurality of grouting pipes inserted into a stratum along the length direction of a tunnel and used for reinforcing the stratum in front of an excavation face, and a concrete arch which is arranged outside the tunnel and plays a role in guiding the grouting pipes to be inserted into the stratum, wherein the concrete arch comprises an arch frame arranged on the ground, a plurality of orifice pipes arranged on the arch frame and used for the grouting pipes to pass through, and a concrete layer covering the outer parts of the arch frame and the orifice pipes, the outer peripheral surface of the arch frame is provided with a plurality of key slots used for clamping the orifice pipes, and the arch frame is provided with a plurality of fixing components used for fixing the orifice pipes on the arch frame;

the fixed subassembly is including the arc that is used for compressing tightly the orifice pipe and a plurality of locking bolts that are used for connecting arc and bow member, the intrados of arc and the outer peripheral face butt of orifice pipe, the arc is close to the homogeneous body connection in both ends of bow member has the connecting plate, and is a plurality of locking bolt passes two connecting plates and with bow member threaded connection.

Through adopting above-mentioned technical scheme, when needing to install the orifice pipe on the bow member, place the orifice pipe in the draw-in groove on the bow member earlier, use a plurality of arc to compress tightly the orifice pipe, then use locking bolt to fix a plurality of arc on the bow member, then pour concrete layer and live with the bow member and the cladding of orifice pipe, the connection stability who has strengthened the orifice pipe using this kind of structure, it is not hard up or pour the condition of accomplishing back not hard up to have improved the orifice pipe at the in-process of pouring, thereby follow-up maintenance has been reduced, reinforced possibility, whole life has been promoted, and is favorable to energy-concerving and environment-protective.

Optionally, a first limiting block and a second limiting block are arranged on the outer peripheral surface of the orifice pipe, and the first limiting block and the second limiting block are respectively embedded in the outer peripheral surface of the arch frame and the inner arc surface of the arc plate.

By adopting the technical scheme, the connection stability of the orifice pipe is further enhanced, and the condition that the orifice pipe and the arch frame slide relatively in the axial direction is improved.

Optionally, a plurality of limiting rods are further arranged on the outer peripheral surface of the orifice pipe, one ends of the limiting rods are fixedly connected with the outer peripheral surface of the orifice pipe, and the limiting rods are all arranged in the concrete layer in a penetrating mode.

Through adopting above-mentioned technical scheme, the gag lever post card is established in concrete layer, has strengthened the stability of being connected of orifice pipe and concrete layer.

Optionally, the two ends of the arch frame, which are abutted against the ground, are provided with stabilizing frames, and the stabilizing frames are coated with concrete bases.

Through adopting above-mentioned technical scheme, strengthened the stability that the concrete cover was encircleed for the concrete cover is encircleed and can be played better guide effect.

Optionally, the arch-shaped frame includes a plurality of steel arched beams as the skeleton and a plurality of steel reinforcing rods for connecting the arched beams, there is a gap between two adjacent arched beams, the reinforcing rods are located between two adjacent arched beams, and two ends of the reinforcing rods are welded on two opposite side faces of the two adjacent arched beams respectively.

By adopting the technical scheme, the arch frame consists of the arched beams and the reinforcing rods, the step-by-step operation can be performed in the construction process, the construction difficulty of workers is reduced, and the overall stability of the arch frame is enhanced by arranging the reinforcing rods.

Optionally, the arched beam is formed by splicing a plurality of arched beams through connecting bolts.

By adopting the technical scheme, the arched beam is further refined, the transportation is facilitated, and the construction difficulty is reduced.

Optionally, the internal perisporium of slip casting pipe is provided with the strengthening rib along slip casting pipe length direction, and is a plurality of the strengthening rib uses the slip casting pipe axis to be the circumference array distribution as the axle center.

By adopting the technical scheme, the rigidity of the grouting pipe is enhanced, so that the supporting capability to the stratum is enhanced.

Optionally, the head direction of the grouting pipe is set to be a taper shape.

By adopting the technical scheme, the pipe head of the grouting pipe is arranged to be in a taper shape, so that the grouting pipe can be conveniently inserted into the stratum by a worker.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the fixing assembly, the first limiting block, the second limiting block and the limiting rod, the connection stability of the orifice pipe is enhanced, and the condition that the orifice pipe is loosened in the concrete layer pouring process or loosened after the concrete layer pouring is finished is improved, so that the possibility of subsequent maintenance and reinforcement is reduced, the service life of the whole body is prolonged, and energy conservation and environmental protection are facilitated;

2. the arch-shaped frame is refined into a plurality of arc-shaped beams and reinforcing rods, so that the construction difficulty is reduced, and the transportation of building materials is facilitated.

Drawings

Fig. 1 is a schematic view of a use state of an embodiment of the present application.

Fig. 2 is a sectional view of the main structure of the embodiment of the present application.

FIG. 3 is a cross-sectional view of a grout tube in an embodiment of the present application.

Fig. 4 is a schematic structural diagram of an embodiment of the present application to embody an arch.

Fig. 5 is an enlarged view of a portion a in fig. 2.

Fig. 6 is a schematic view of an orifice tube structure in an embodiment of the present application.

Description of reference numerals: 1. a grouting pipe; 11. reinforcing ribs; 2. concrete arch sheathing; 21. an arch frame; 211. an arched beam; 212. a reinforcing bar; 213. a keyway; 22. an orifice tube; 221. a first stopper; 222. a second limiting block; 223. a limiting rod; 23. a concrete layer; 24. a stabilizing frame; 25. a concrete base; 3. a fixing assembly; 31. an arc-shaped plate; 311. a connecting plate; 32. and locking the bolt.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses big pipe roof reinforced structure. Referring to fig. 1 and 2, a big shed reinforced structure includes slip casting pipe 1 and concrete cover arch 2, and slip casting pipe 1 inserts in the stratum and is used for consolidating the excavation face front stratum along tunnel length direction, and concrete cover arch 2 sets up outside the tunnel and plays the guide effect to slip casting pipe 1 inserts in the stratum, simultaneously, has set up to the taper shape for the staff in order to insert slip casting pipe 1 into the stratum in, the tube head direction of slip casting pipe 1.

Referring to fig. 3, the inner peripheral wall of the grouting pipe 1 is provided with reinforcing ribs 11 along the length direction of the grouting pipe 1, the plurality of reinforcing ribs 11 are distributed in a circumferential array by taking the axis of the grouting pipe 1 as an axis, and the rigidity of the grouting pipe 1 is enhanced by the arrangement of the reinforcing ribs 11, so that the support capability of the grouting pipe 1 on the stratum is enhanced.

Referring to fig. 1 and 2, the concrete arch casing 2 further includes an arch frame 21, a plurality of hole pipes 22 and a concrete layer 23, the arch frame 21 is disposed on the ground and serves as a framework of the whole concrete arch casing 2, the hole pipes 22 are disposed on the arch frame 21 and serve as a guide for the grouting pipes 1, the concrete layer 23 is coated outside the arch frame 21 and the hole pipes 22 to reinforce the concrete, meanwhile, in order to enhance the stability of the concrete arch casing 2, two ends of the arch frame 21, which are in contact with the ground, are provided with stabilizing frames 24, and the stabilizing frames 24 are coated with concrete bases 25.

Referring to fig. 2 and 4, the arch frame 21 includes four steel arch beams 211 and a plurality of steel reinforcing rods 212, each arch beam 211 is formed by splicing a plurality of arc beams through connecting bolts, a gap is formed between two adjacent arch beams 211, the plurality of reinforcing rods 212 are located between two adjacent arch beams 211, two ends of each reinforcing rod 212 are respectively welded on two opposite side surfaces of two adjacent arch beams 211, and the arch frame 21 is thinned into the plurality of arc beams and the reinforcing rods 212, so that the construction difficulty is reduced, and the transportation of building materials is facilitated.

Referring to fig. 4 and 5, in order to strengthen the stability of the orifice pipe 22, a plurality of key grooves 213 used for clamping the orifice pipe 22 are provided on the outer peripheral surface of the arch frame 21, a plurality of fixing components 3 used for fixing the orifice pipe 22 on the arch frame 21 are further provided on the arch frame 21, each fixing component 3 comprises an arc-shaped plate 31 and a locking bolt 32, the arc-shaped plate 31 is used for pressing the orifice pipe 22 and the inner arc surface of the arc-shaped plate 31 against the outer peripheral surface of the orifice pipe 22, the two ends of the arc-shaped plate 31 close to the arch frame 21 are both integrally connected with connecting plates 311, the locking bolts 32 pass through the two connecting plates 311 and are in threaded connection with the arc frame, and each orifice pipe 22 is fixed by using four fixing components 3.

Referring to fig. 2 and 6, in order to further enhance the connection stability of the orifice pipe 22, a first stopper 221 and a second stopper 222 are disposed on the outer circumferential surface of the orifice pipe 22, a first clamping groove for clamping the first stopper 221 is disposed on the outer circumferential surface of the arch frame 21, and a second clamping groove for clamping the second stopper 222 is disposed on the inner arc surface of the arc plate 31.

Still be provided with a plurality of gag lever posts 223 on the outer peripheral face of orifice pipe 22, the one end and the orifice pipe 22 outer peripheral face fixed connection of a plurality of gag lever posts 223, a plurality of gag lever posts 223 all wear to establish in concrete layer 23, through setting up first stopper 221, second stopper 222 and gag lever post 223, have improved orifice pipe 22 and have taken place the condition of orifice pipe 22 relative slip on the axial direction with arch frame 21.

The implementation principle of the big pipe shed reinforced structure of the embodiment of the application is as follows: when a large pipe shed reinforcing structure needs to be installed, the arch frame 21 is installed firstly, then the fixing assembly 3 is used for fixing the orifice pipe 22 on the arch frame 21, then the concrete layer 23 is poured on the arch frame 21, the concrete cover arch 2 is formed finally, the grouting pipe 1 is inserted into the ground layer through the orifice pipe 22, then grouting is performed in the grouting pipe 1, and the final large pipe shed reinforcing structure is formed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a big pipe shed reinforced structure, includes along tunnel length direction insert in the stratum and be used for consolidating a plurality of slip casting pipe (1) of excavation face front stratum, sets up outside the tunnel and insert concrete cover arch (2) that plays the guide effect in the stratum to slip casting pipe (1), concrete cover arch (2) are including setting up arch frame (21) subaerial, set up a plurality of hole pipe (22) that confession slip casting pipe (1) passed on arch frame (21), cladding at arch frame (21) and hole pipe (22) outside concrete layer (23), its characterized in that: the outer peripheral surface of the arch frame (21) is provided with a plurality of key slots (213) for clamping the orifice pipe (22), and the arch frame (21) is provided with a plurality of fixing components (3) for fixing the orifice pipe (22) on the arch frame (21);

fixed subassembly (3) including arc (31) that are used for compressing tightly orifice pipe (22) and a plurality of locking bolt (32) that are used for connecting arc (31) and bow member (21), the intrados of arc (31) and the outer peripheral face butt of orifice pipe (22), arc (31) are close to the equal body coupling in both ends of bow member (21) and have connecting plate (311), and are a plurality of locking bolt (32) pass two connecting plates (311) and with arc frame threaded connection.

2. The big pipe shed reinforcing structure of claim 1, characterized in that: the outer peripheral surface of the orifice pipe (22) is provided with a first limiting block (221) and a second limiting block (222), and the first limiting block (221) and the second limiting block (222) are respectively embedded in the outer peripheral surface of the arch frame (21) and the inner arc surface of the arc plate (31).

3. The big pipe shed reinforcing structure of claim 2, characterized in that: still be provided with a plurality of gag lever posts (223) on the outer peripheral face of orifice pipe (22), a plurality of the one end and the orifice pipe (22) outer peripheral face fixed connection of gag lever post (223), a plurality of gag lever post (223) are all worn to establish in concrete layer (23).

4. The big pipe shed reinforcing structure of claim 3, wherein: the two ends of the arch frame (21) which are abutted against the ground are provided with stabilizing frames (24), and the stabilizing frames (24) are coated with concrete bases (25).

5. The big pipe shed reinforced structure of claim 4, characterized in that: the arched frame (21) comprises a plurality of steel arched beams (211) serving as frameworks and a plurality of steel reinforcing rods (212) used for connecting the arched beams (211), wherein gaps are reserved between every two adjacent arched beams (211), the reinforcing rods (212) are located between every two adjacent arched beams (211), and two ends of each reinforcing rod (212) are respectively welded on two opposite side faces of every two adjacent arched beams (211).

6. The big pipe shed reinforcing structure of claim 5, wherein: the arched beam (211) is formed by splicing a plurality of arched beams through connecting bolts.

7. The big pipe shed reinforcing structure of claim 1, characterized in that: the inner peripheral wall of the grouting pipe (1) is provided with reinforcing ribs (11) along the length direction of the grouting pipe (1), and the reinforcing ribs (11) are distributed in a circumferential array mode by taking the axis of the grouting pipe (1) as the axis.

8. The big pipe shed reinforced structure of claim 7, characterized in that: the direction of the head of the grouting pipe (1) is arranged to be a taper shape.

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