CN216077114U

CN216077114U - Reaction frame

Info

Publication number: CN216077114U
Application number: CN202122593027.4U
Authority: CN
Inventors: 蔡柏松; 王兴龙; 金礼元; 池凌杰; 王世杰
Original assignee: Tengda Construction Group Co Ltd
Current assignee: Tengda Construction Group Co Ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-03-18
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a reaction frame, which belongs to the technical field of building construction and comprises a first upright post, a second upright post, a bottom arc guide platform and a support ring. The first upright post is arranged along the vertical direction and is of a reinforced concrete structure, and a bracket is arranged on the side part of the first upright post; the second upright post and the first upright post are arranged in parallel at intervals and are of a reinforced concrete structure, and a plate support is arranged on the side part of the second upright post; the bottom arc-shaped guide table is of a plain concrete structure, an arc-shaped concave surface is arranged on the upper surface of the bottom arc-shaped guide table, the first stand column penetrates through the bottom arc-shaped guide table in the vertical direction and is positioned on one side of the bottom arc-shaped guide table, and the second stand column is connected to the other side of the bottom arc-shaped guide table; the lower surface of the support ring is attached to the arc-shaped concave surface, and the support ring is clamped between the first stand column and the second stand column; the support ring is configured to couple with the negative collar tab. The utility model has lower cost.

Description

Reaction frame

Technical Field

The utility model relates to the technical field of building construction, in particular to a reaction frame.

Background

In the shield construction, the reaction frame is an indispensable device for providing reaction force for the tunneling of the shield machine during the starting period of the shield.

In the prior art, the reaction frame is usually made of a steel structure. However, a 15 meter large diameter shield machine originates in a complex formation with a thrust of about 6000 tons. If a steel structure reaction frame is adopted, the structural size of the reaction frame is larger to control deformation due to small rigidity of a steel structure, the weight reaches 350 tons, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a reaction frame, which aims to solve the technical problem that the reaction frame in the prior art is expensive in manufacturing cost due to the adoption of a steel structure when the reaction frame is larger in size.

As the conception, the technical scheme adopted by the utility model is as follows:

a reaction frame comprising:

the first upright column is arranged in the vertical direction and is of a reinforced concrete structure, and a bracket is arranged on the side part of the first upright column;

the second upright column is parallel to the first upright column at intervals and is of a reinforced concrete structure, and a plate support is arranged on the side part of the second upright column;

the bottom arc-shaped guide table is of a plain concrete structure, an arc-shaped concave surface is arranged on the upper surface of the bottom arc-shaped guide table, the first stand column penetrates through the bottom arc-shaped guide table in the vertical direction and is positioned on one side of the bottom arc-shaped guide table, and the second stand column is connected to the other side of the bottom arc-shaped guide table;

the lower surface of the support ring is attached to and connected with the arc-shaped concave surface, the support ring is clamped between the first upright column and the second upright column, and two opposite sides of the support ring are respectively connected with the first upright column and the second upright column;

the reaction frame is configured to: the lower end of the first upright column is connected with a structural bottom plate of the starting well, the upper end of the first upright column is connected with a middle plate of the starting well, the lower end of the second upright column is connected with the structural bottom plate of the starting well, the upper end of the second upright column is connected with the middle plate of the starting well, the bracket and the plate brace are both connected with the side wall of the starting well, and the support ring is configured to be connected with a negative annular plate.

Optionally, the reaction frame further includes a top cross beam, one end of the top cross beam is connected to the first upright, the other end of the top cross beam is connected to the second upright, the top cross beam is configured to be connected to the middle plate, and the top of the support ring is connected to the top cross beam.

Optionally, one end of the top cross beam is connected to the first upright through a first oblique beam, and the other end of the top cross beam is connected to the second upright through a second oblique beam.

Optionally, both ends of the first oblique beam are haunched beams, and both ends of the second oblique beam are haunched beams.

Optionally, the reaction frame further comprises:

the upper end of the third oblique beam is connected with the first upright column, an included angle between the third oblique beam and the first upright column is an acute angle, the third oblique beam is positioned between the first upright column and the second upright column, and the lower end of the third oblique beam is configured to be connected with the structural bottom plate;

the upper end of the fourth oblique beam is connected with the first stand column, an included angle between the fourth oblique beam and the second stand column is an acute angle, the fourth oblique beam is located between the first stand column and the second stand column, and the lower end of the fourth oblique beam is configured to be connected with the structural bottom plate.

Optionally, a plurality of square embedded steel plates are embedded in the support ring at equal intervals along the circumferential direction of the support ring, a steel pipe is welded to the end face of each square embedded steel plate, and the steel pipe is configured to be connected with the negative ring pipe piece.

Optionally, twenty eight square embedded steel plates are embedded in the supporting ring at equal intervals.

Optionally, the plate brace is a reinforced concrete structure.

Optionally, the corbel is a reinforced concrete structure.

Optionally, the thickness of the steel bar protection layer of the reinforced concrete structure is 30 cm.

When the reaction frame is used, the reaction frame is arranged at the position of an originating well, the first upright post is connected with one side wall of the originating well through the bracket, the second upright post is connected with the other side wall of the originating well through the plate support, and the bracket is connected with one side wall of the originating well to provide reaction force for the first upright post, so that reaction force is provided for one side of the support ring; the plate support is connected with the other side wall of the originating well to provide counter force for the second upright column so as to provide counter force for the other side of the support ring; the arc-shaped guide table at the bottom provides counter-force for the lower part of the support ring, so that the support ring can be connected with a shield jack through a negative ring segment, and the support ring can stably provide forward propelling force for a shield machine. Meanwhile, in the embodiment, the first stand column and the second stand column of the reaction frame are both of a reinforced concrete structure, and the bottom arc-shaped guide platform is of a plain concrete structure, so that the manufacturing cost is reduced compared with a steel structure.

Drawings

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

FIG. 1 is a schematic view of a reaction frame provided by an embodiment of the present invention;

FIG. 2 is a front elevation view of a counterforce bay provided in an embodiment of the utility model while in an originating well;

FIG. 3 is a side elevational view of a counterforce frame as provided by an embodiment of the utility model, in an originating well.

In the figure:

1. a first upright post; 11. a bracket;

2. a second upright post; 21. plate support;

3. a bottom arc guide table;

4. a support ring; 41. a steel pipe;

5. a top cross beam; 51. a first inclined beam; 52. a second inclined beam;

61. a third oblique beam; 62. a fourth inclined beam;

9. an originating well; 91. a structural floor; 92. a middle plate.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

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

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present embodiment provides a reaction frame, which is installed in an initial well 9, and can be applied to a shield machine with a large diameter of 15 meters, and the manufacturing cost is low.

Specifically, in the present embodiment, the originating well 9 includes two side walls, a structural bottom plate 91 and a middle plate 92, which are spaced and oppositely disposed. The two ends of the structural bottom plate 91 are respectively connected with the lower ends of the two side walls, and the middle plate 92 is arranged above the structural bottom plate 91 at intervals in parallel.

Specifically, in the present embodiment, the reaction frame includes a first column 1, a second column 2, a bottom arc guide 3 and a support ring 4.

First stand 1 sets up along vertical direction, and for reinforced concrete structure, the lateral part of first stand 1 is provided with bracket 11.

Second stand 2 and the parallel interval setting of first stand 1, for reinforced concrete structure, the lateral part of second stand 2 is provided with the board and props 21.

Platform 3 is led to the bottom arc is plain concrete structure, and the upper surface that platform 3 was led to the bottom arc is provided with the arc concave surface, and first stand 1 passes bottom arc along vertical direction and leads platform 3 and lie in one side that platform 3 was led to the bottom arc, and second stand 2 is connected in the opposite side that platform 3 was led to the bottom arc.

The lower surface of support ring 4 is connected with the laminating of arc concave surface, and support ring 4 presss from both sides and locates between first stand 1 and the second stand 2, and the relative both sides of support ring 4 are connected with first stand 1 and second stand 2 respectively.

The reaction frame is configured to: the lower end of the first upright column 1 is connected with a structural bottom plate 91 of the originating well 9, the upper end of the first upright column 1 is connected with a middle plate 92 of the originating well 9, the lower end of the second upright column 2 is connected with the structural bottom plate 91 of the originating well 9, the upper end of the second upright column 2 is connected with the middle plate 92 of the originating well 9, the bracket 11 and the plate brace 21 are both connected with the side wall of the originating well 9, and the support ring 4 is configured to be connected with the shield jack through a negative ring segment.

When the reaction frame provided by the embodiment is used, the reaction frame is installed at the position of the starting well 9, the first upright post 1 is connected with one side wall of the starting well 9 through the bracket 11, the second upright post 2 is connected with the other side wall of the starting well 9 through the plate support 21, and the bracket 11 is connected with one side wall of the starting well 9 to provide reaction force for the first upright post 1, so that reaction force is provided for one side of the support ring 4; the plate support 21 is connected with the other side wall of the starting well 9 to provide a counter force to the second upright 2 and thus to the other side of the support ring 4; the bottom arc guide table 3 provides counter-force for the lower part of the support ring 4, so that the support ring 4 can be connected with a shield jack through a negative ring segment, and the support ring 4 can be stably used for providing forward propelling force for a shield machine. Meanwhile, in the embodiment, the first stand column 1 and the second stand column 2 of the reaction frame are both of a reinforced concrete structure, and the bottom arc-shaped guide table 3 is of a plain concrete structure, so that the manufacturing cost is reduced compared with a steel structure.

Preferably, in this embodiment, the plate brace 21 is a reinforced concrete structure. The bracket 11 is of a reinforced concrete structure.

Specifically, in this embodiment, the thickness of the plate brace 21 is 500mm, a double-layer bidirectional phi 16@150 steel bar mesh is configured, and the anchoring length of the steel bars, the bottom plate, the side wall and the beam is 35 d.

Specifically, in this embodiment, the reinforcing steel bar of the bracket 11 in the stressed direction is phi 28@150, and the reinforcing steel bar in the other direction is phi 16@ 150.

Furthermore, a phi 16@300 bidirectional dowel bar is arranged at the position 5m away from the reaction frame on the rear side of the reaction frame, and the height of the dowel bar is the same as that of the bottom arc-shaped guide table 3.

Optionally, in this embodiment, the concrete is C35 concrete, and the thickness of the steel bar protection layer of all the reinforced concrete structures is 30 cm.

Further, in this embodiment, the reaction frame further includes a top cross beam 5, one end of the top cross beam 5 is connected to the first upright 1, the other end is connected to the second upright 2, the top cross beam 5 is configured to be connected to the middle plate 92, and the top of the support ring 4 is connected to the top cross beam 5.

Specifically, one end of the top cross member 5 is connected to the first column 1 via a first inclined member 51, and the other end is connected to the second column 2 via a second inclined member 52. Preferably, both ends of the first inclined beam 51 are haunched beams, and both ends of the second inclined beam 52 are haunched beams.

Specifically, in this embodiment, 5 reinforcing steel bars with a diameter of 25mm are arranged at the upper and lower positions of the beam corner haunching positions of the first oblique beam 51 and the second oblique beam 52, 7 waist bars with a diameter of 14mm are arranged on the side surface, the opening stirrup is arranged on the side surface and welded with the beam stirrup, and the anchoring length of the reinforcing steel bars is 35 d.

Further, in the present embodiment, the reaction frame further includes a third oblique beam 61 and a fourth oblique beam 62.

The upper end of the third oblique beam 61 is connected with the first upright 1, the included angle between the third oblique beam 61 and the first upright 1 is an acute angle, the third oblique beam 61 is located between the first upright 1 and the second upright 2, and the lower end of the third oblique beam 61 is configured to be connected with the structural bottom plate 91.

The upper end of the fourth oblique beam 62 is connected with the first upright 1, the included angle between the fourth oblique beam 62 and the second upright 2 is an acute angle, the fourth oblique beam 62 is located between the first upright 1 and the second upright 2, and the lower end of the fourth oblique beam 62 is configured to be connected with the structural bottom plate 91.

The structural stability of the reaction frame is further improved by providing the first inclined beam 51, the second inclined beam 52, the third inclined beam 61 and the fourth inclined beam 62.

Further, in this embodiment, a plurality of square embedded steel plates are embedded in the support ring 4 at equal intervals along the circumferential direction of the support ring 4, a steel pipe 41 is welded to an end surface of each square embedded steel plate, and the steel pipe 41 is configured to be connected to the negative ring pipe piece.

Specifically, in this embodiment, twenty-eight square embedded steel plates are embedded in the support ring 4 at equal intervals, and the diameter of each square embedded steel plate is 55 cm. The end face of each square embedded steel plate is welded with a steel pipe 41 with the diameter of 40cm, and the negative ring pipe piece is connected with the reaction frame through the steel pipe 41. 28 steel pipes 41 form 28 supporting points corresponding to the shield jack.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the utility model, which changes and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A reaction frame, comprising:

the first upright post (1) is arranged in the vertical direction and is of a reinforced concrete structure, and a bracket (11) is arranged on the side part of the first upright post (1);

the second upright post (2) is arranged in parallel with the first upright post (1) at intervals and is of a reinforced concrete structure, and a plate support (21) is arranged on the side part of the second upright post (2);

the bottom arc-shaped guide table (3) is of a plain concrete structure, an arc-shaped concave surface is arranged on the upper surface of the bottom arc-shaped guide table (3), the first stand column (1) penetrates through the bottom arc-shaped guide table (3) in the vertical direction and is positioned on one side of the bottom arc-shaped guide table (3), and the second stand column (2) is connected to the other side of the bottom arc-shaped guide table (3);

the lower surface of the support ring (4) is attached to and connected with the arc-shaped concave surface, the support ring (4) is clamped between the first upright column (1) and the second upright column (2), and two opposite sides of the support ring (4) are respectively connected with the first upright column (1) and the second upright column (2);

the reaction frame is configured to: the lower end of the first upright column (1) is connected with a structural bottom plate (91) of an originating well (9), the upper end of the first upright column (1) is connected with a middle plate (92) of the originating well (9), the lower end of the second upright column (2) is connected with the structural bottom plate (91) of the originating well (9), the upper end of the second upright column (2) is connected with the middle plate (92) of the originating well (9), the bracket (11) and the plate brace (21) are both connected with the side wall of the originating well (9), and the support ring (4) is configured to be connected with a negative annular pipe sheet.

2. Reaction frame according to claim 1, characterized in that it further comprises a top cross-beam (5), said top cross-beam (5) being connected at one end to said first upright (1) and at the other end to said second upright (2), said top cross-beam (5) being configured to be connected to said middle plate (92), the top of said support ring (4) being connected to said top cross-beam (5).

3. Reaction frame according to claim 2, characterized in that the top cross-member (5) is connected at one end to the first upright (1) by a first oblique beam (51) and at the other end to the second upright (2) by a second oblique beam (52).

4. Reaction frame according to claim 3, characterized in that both ends of the first oblique beam (51) are haunched beams and both ends of the second oblique beam (52) are haunched beams.

5. The reaction frame of claim 1 further comprising:

a third oblique beam (61), the upper end of which is connected to the first upright (1), wherein an included angle between the third oblique beam (61) and the first upright (1) is an acute angle, the third oblique beam (61) is located between the first upright (1) and the second upright (2), and the lower end of the third oblique beam (61) is configured to be connected to the structural floor (91);

fourth sloping (62), the upper end with first stand (1) is connected, fourth sloping (62) with contained angle between second stand (2) is the acute angle just fourth sloping (62) are located first stand (1) with between second stand (2), the lower extreme of fourth sloping (62) be configured into with structural bottom plate (91) are connected.

6. The reaction frame according to any one of claims 1 to 5, wherein a plurality of square pre-buried steel plates are pre-buried in the support ring (4) at equal intervals along the circumference of the support ring (4), a steel pipe (41) is welded to the end face of each square pre-buried steel plate, and the steel pipe (41) is configured to be connected with the negative collar piece.

7. The reaction frame according to claim 6, characterized in that twenty-eight square embedded steel plates are embedded in the support ring (4) at equal intervals.

8. Reaction frame according to any of claims 1-5, characterized in that the plate braces (21) are of reinforced concrete construction.

9. A counterforce frame according to any one of claims 1-5, characterized in that the corbel (11) is a reinforced concrete structure.

10. Reaction frame according to any of claims 1-5, characterized in that the thickness of the steel reinforcement protection layer of the reinforced concrete structure is 30 cm.