CN218581619U - Can bear prefabricated inverted arch structure of heavily loaded effect - Google Patents

Abstract

The utility model discloses a can bear prefabricated invert structure of heavy load effect relates to tunnel engineering technical field, including the invert prefab, the invert prefab includes prefab one, two prefabs two and four spread grooves, two prefab two all sets up on prefab one, four the top at the prefab two that correspond is seted up respectively to the spread groove, be provided with bearing mechanism on the invert prefab. The utility model provides a can bear prefabricated invert structure of heavy load effect, through setting up the invert prefab, can realize batch production, the field installation, through setting up bearing mechanism, boundary hoop reinforcement, inside transverse reinforcement, inside vertical reinforcement and boundary longitudinal reinforcement play the effect of consolidating the support, let invert structure become more firm, can satisfy the communication poling like this, electric poling, when for the drainage poling, also can protect the pipeline, also can improve the viability in whole tunnel.

Description

Can bear prefabricated inverted arch structure of heavily loaded effect

Technical Field

The utility model relates to a tunnel engineering technical field especially relates to a can bear prefabricated inverted arch structure of heavy load effect.

Background

The inverted arch is a reverse arch structure arranged at the bottom of the tunnel for improving the stress condition of an upper supporting structure, is one of main components of the tunnel structure, and is generally explained as an upward-facing arch.

However, in the prior art, the conventional tunnel inverted arch structure construction generally adopts a manual drilling and blasting method, then steel bars are bundled by constructors, concrete is poured on site, the construction steps are multiple, and the air-drying and forming of the concrete requires a long time, so that the construction time is long, and the construction efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a can bear prefabricated inverted arch structure of heavy load effect has solved in prior art, and traditional tunnel inverted arch structure construction generally adopts artifical brill method of exploding earlier, then ties up the reinforcing bar through constructor, carries out on-the-spot pouring concrete again, and construction steps is various, and waits concrete air-drying shaping needs longer time to make the engineering time longer, reduced the problem of efficiency of construction.

In order to solve the technical problem, the utility model provides a pair of can bear prefabricated invert structure of heavy load effect, including the invert prefab, the invert prefab includes prefab one, two prefabs two and four spread grooves, two the prefab two all sets up on prefab one, four the top at the prefab two that correspond is seted up respectively to the spread groove, be provided with bearing mechanism on the invert prefab.

Preferably, the bearing mechanism includes boundary hoop stirrup, concrete layer and a plurality of boundary longitudinal reinforcement, boundary hoop stirrup sets up on the inner wall of prefab one, boundary hoop stirrup is connected with two one side outer walls that are close to each other of prefab two, concrete layer sets up in the inboard of boundary hoop stirrup, and is a plurality of boundary longitudinal reinforcement all sets up on concrete layer.

Preferably, bearing mechanism still includes two inside horizontal reinforcing bars and two inside vertical reinforcing bars, two inside horizontal reinforcing bar all sets up on concrete layer, two inside vertical reinforcing bar all sets up on concrete layer.

Preferably, bearing mechanism still reserves the threading pipe and reserves the threading pipe in a plurality of left sides for drainage threading pipe, a plurality of right sides, the threading pipe is seted up on one side outer wall on concrete layer for drainage threading pipe, and is a plurality of the threading pipe is all seted up on one side outer wall on concrete layer is reserved on the right side, and is a plurality of the threading pipe is reserved in the left side and all is seted up on one side outer wall on concrete layer.

Preferably, a top prefabricated member is arranged at the top of the boundary annular stirrup, and two connecting blocks are fixedly mounted on the outer walls of two sides of the top prefabricated member respectively.

Preferably, the four connecting blocks extend into the corresponding connecting grooves respectively and are in sliding connection with the inner walls of the corresponding connecting grooves.

Preferably, the two prefabricated members are matched with the boundary hoop reinforcement.

Compared with the prior art, the utility model provides a pair of can bear prefabricated inverted arch structure of heavy load effect has following beneficial effect:

the utility model provides a can bear prefabricated inverted arch structure of heavy load effect, through setting up the inverted arch prefab, make the inverted arch part in advance, alright directly install when the construction, can realize batch production, on-the-spot installation, thereby can avoid the cast-in-place to increase the engineering time simultaneously and reduce the efficiency of construction.

The utility model provides a can bear prefabricated inverted arch structure of heavy load effect, through setting up bearing mechanism, boundary hoop reinforcement, inside transverse reinforcement, inside vertical reinforcement and boundary longitudinal reinforcement play the effect of consolidating the support, let inverted arch structure become more firm, when can satisfying communication poling, electric poling like this, give the drainage poling, also can protect the pipeline, also can improve the viability in whole tunnel.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a prefabricated inverted arch structure capable of bearing heavy load according to the present invention;

FIG. 2 is a schematic view of the assembly structure of the second prefabricated member and the connecting groove of the present invention;

FIG. 3 is a schematic view of the assembly structure of the top prefabricated member and the connecting block of the present invention;

figure 4 is the utility model discloses can bear prefabricated inverted arch structure's of heavy load effect orthographic view sectional structure sketch map

Fig. 5 is the utility model discloses can bear the overhead structure schematic diagram of the prefabricated inverted arch structure of heavy load effect.

Reference numbers in the figures: 1-an inverted arch prefabricated member; 101-performing a first part; 102-preform two; 103-connecting grooves; 2-a load bearing mechanism; 201-boundary hoop reinforcement; 202-concrete layer; 203-border longitudinal rebar; 204-internal transverse reinforcement; 205-internal vertical rebars; 206-water supply and drainage threading pipe; 207-a threading pipe is reserved on the right side; 208-a threading pipe is reserved on the left side; 3-a top preform; 4-connecting block.

Detailed Description

The technical solution of the present invention will be described in detail and fully with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.

In the first embodiment, as shown in fig. 1 to 5, the present invention includes an inverted arch preform 1, the inverted arch preform 1 includes a first preform 101, two second preforms 102 and four connecting grooves 103, the two second preforms 102 are all disposed on the first preform 101, the four connecting grooves 103 are respectively disposed at the tops of the corresponding second preforms 102, and the inverted arch preform 1 is provided with a bearing mechanism 2;

in the second embodiment, the bearing mechanism 2 comprises a boundary hoop reinforcement 201, a concrete layer 202 and a plurality of boundary longitudinal reinforcements 203, the boundary hoop reinforcement 201 is arranged on the inner wall of the first prefabricated part 101, the boundary hoop reinforcement 201 is connected with the outer wall of one side, close to the second prefabricated parts 102, of the second prefabricated part, the concrete layer 202 is arranged on the inner side of the boundary hoop reinforcement 201, and the plurality of boundary longitudinal reinforcements 203 are arranged on the concrete layer 202, so that the reinforcement and support effects on the inverted arch are achieved, the inverted arch structure is firmer, and the viability of the whole tunnel is improved;

in the third embodiment, the load-bearing mechanism 2 further includes two internal transverse steel bars 204 and two internal vertical steel bars 205, the two internal transverse steel bars 204 are both disposed on the concrete layer 202, and the two internal vertical steel bars 205 are both disposed on the concrete layer 202, so as to reinforce and support the inverted arch, so that the inverted arch structure is firmer, and the viability of the whole tunnel is improved;

in the fourth embodiment, the bearing mechanism 2 further comprises a water supply and drainage threading pipe 206, a plurality of right reserved threading pipes 207 and a plurality of left reserved threading pipes 208, the water supply and drainage threading pipe 206 is arranged on the outer wall of one side of the concrete layer 202, the plurality of right reserved threading pipes 207 are arranged on the outer wall of one side of the concrete layer 202, and the plurality of left reserved threading pipes 208 are arranged on the outer wall of one side of the concrete layer 202, so that communication threading pipes, electric threading pipes and water supply and drainage threading pipes can be met, the purpose of pipeline protection can be achieved, and the viability of the whole tunnel is improved;

in the fifth embodiment, the top prefabricated member 3 is arranged at the top of the boundary hoop reinforcement 201, two connecting blocks 4 are respectively and fixedly arranged on the outer walls of two sides of the top prefabricated member 3, and the top prefabricated member 3 is arranged, so that the construction time is prevented from being increased by in-situ pouring, and the construction efficiency is reduced;

in the sixth embodiment, four connecting blocks 4 respectively extend into the corresponding connecting grooves 103 and are slidably connected with the inner walls of the corresponding connecting grooves 103, so that the top prefabricated member 3 can be conveniently installed;

in the seventh embodiment, both the second preforms 102 are fitted with the boundary hoop reinforcement 201, so that the second preforms 102 and the boundary hoop reinforcement 201 can be conveniently installed.

The working principle is as follows: for a prefabricated inverted arch structure that can bear heavily loaded effect, at first install prefab 101, install two prefabs two 102 back on prefab 101 again, place bearing mechanism 2 between two prefabs two 102, make connecting block 4 aim at spread groove 103 again, install top prefab 3, wherein border hoop reinforcement 201, inside horizontal reinforcing bar 204, inside vertical reinforcing bar 205 and border longitudinal reinforcement 203 play the effect of consolidating the support to the inverted arch structure, make the inverted arch structure more firm, thereby improve the survivability of whole tunnel, give drainage threading pipe 206, threading pipe 207 is reserved on the right side and threading pipe 208 is reserved on the left side can satisfy the communication threading pipe, electric threading pipe and drainage threading pipe, concrete layer 202 also can protect the pipeline when playing the support. It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims (7)

1. The utility model provides a can bear prefabricated inverted arch structure of heavily loaded effect, includes inverted arch prefab (1), its characterized in that: inverted arch prefab (1) is including prefab (101), two prefabs two (102) and four connecting grooves (103), two prefab two (102) all set up on prefab (101), four connecting groove (103) are seted up respectively at the top of the prefab two (102) that correspond, be provided with load-carrying mechanism (2) on inverted arch prefab (1).

2. The prefabricated inverted arch structure capable of bearing heavy load according to claim 1, wherein the load-bearing mechanism (2) comprises a boundary hoop reinforcement (201), a concrete layer (202) and a plurality of boundary longitudinal reinforcements (203), the boundary hoop reinforcement (201) is arranged on the inner wall of the first prefabricated part (101), the boundary hoop reinforcement (201) is connected with the outer wall of one side of the two second prefabricated parts (102) close to each other, the concrete layer (202) is arranged on the inner side of the boundary hoop reinforcement (201), and the plurality of boundary longitudinal reinforcements (203) are arranged on the concrete layer (202).

3. The prefabricated inverted arch structure capable of bearing heavy load according to claim 2, wherein the load-bearing mechanism (2) further comprises two inner transverse reinforcements (204) and two inner vertical reinforcements (205), wherein the two inner transverse reinforcements (204) are both disposed on the concrete layer (202), and the two inner vertical reinforcements (205) are both disposed on the concrete layer (202).

4. The prefabricated inverted arch structure capable of bearing heavy load according to claim 3, wherein the bearing mechanism (2) further comprises a water supply and drainage threading pipe (206), a plurality of right reserved threading pipes (207) and a plurality of left reserved threading pipes (208), the water supply and drainage threading pipe (206) is arranged on the outer wall of one side of the concrete layer (202), the right reserved threading pipes (207) are arranged on the outer wall of one side of the concrete layer (202), and the left reserved threading pipes (208) are arranged on the outer wall of one side of the concrete layer (202).

5. The prefabricated inverted arch structure capable of bearing heavy load according to claim 2, wherein the top of the boundary hoop reinforcement (201) is provided with a top prefabricated member (3), and two connecting blocks (4) are respectively fixedly mounted on the outer walls of two sides of the top prefabricated member (3).

6. Prefabricated inverted arch structure capable of bearing heavy load according to claim 5, wherein four of said connecting blocks (4) extend into the corresponding connecting slots (103) and are slidably connected with the inner walls of the corresponding connecting slots (103).

7. The prefabricated inverted arch structure capable of bearing heavy load according to claim 2, wherein both of the second prefabricated members (102) are adapted to the boundary hoop reinforcement (201).

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