Supporting structure for tunneling underground passage with rectangular section

Abstract

The utility model relates to the technical field of tunneling construction of an underground passage with a rectangular section, and provides a supporting structure for tunneling of the underground passage with the rectangular section, which comprises a supporting component, and the supporting component is mounted on the inner side of the rectangular section of the underground passage and consists of a cross beam and a vertical column. The cross beam and the stand column are fixed through a connecting piece, an adjusting structure used for adjusting the height is arranged at the bottom end of the stand column, and the adjusting structure comprises a limiting groove formed in the bottom end of the interior of the stand column, a lower wedge block installed in the limiting groove, a connecting block installed at the bottom end of the lower wedge block and a foot pad installed at the bottom end of the connecting block. According to the adjusting structure, the adjusting lead screw is rotated, the shaft sleeve drives the upper wedge block to move, the upper wedge block pushes the lower wedge block to move, the connecting block drives the foot pad to move downwards, the purpose of adjusting the height of the foot pad is achieved, the foot pad can be completely attached to the ground, the contact area is increased, and the stability of the supporting assembly is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cross section rectangular underground passage excavation construction technical field especially relates to a kind of supporting structure for cross section rectangular underground passage excavation. BACKGROUND

[0002] With the continuous development of engineering industry, cross section rectangular underground passage excavation construction technology is also constantly improved, cross section rectangular underground passage excavation construction is to use rectangular tunnel boring machine to excavate in front, and then the prefabricated concrete structure is pushed in, assembled to form the underground passage structure in the non-excavation method construction technology, supporting structure is needed in the process of cross section rectangular underground passage excavation construction.

[0003] The existing supporting structure for cross section rectangular underground passage excavation has poor stability when in use, especially when the ground is uneven, it is difficult to adjust the angle of the bottom surface of the supporting structure, which makes it difficult to completely match the bottom surface with the ground, affecting the stability of the supporting structure. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of supporting structure for cross section rectangular underground passage excavation to solve the defects of poor stability of the existing supporting structure for cross section rectangular underground passage excavation.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a kind of supporting structure for cross section rectangular underground passage excavation, including supporting component, the supporting component is installed in the inner side of underground passage rectangular section, the supporting component is composed of crossbeam and stand, the crossbeam is fixed between the stand by connecting piece, the bottom end of the stand is provided with the adjusting structure for adjusting height, the adjusting structure includes the limiting slot opened in the bottom end of the stand inside, the lower wedge block installed in the limiting slot inside, the connecting block installed in the bottom end of the lower wedge block, the foot pad installed in the bottom end of the connecting block, the first fixing piece is symmetrically installed on the foot pad, the upper wedge block is installed on the lower wedge block, the shaft sleeve is fixedly connected with the upper wedge block, and the adjusting screw rod is installed on one side of the shaft sleeve, the inner side of the supporting component is provided with reinforcing structure, and the outer side of the supporting component is provided with protection structure.

[0006] Preferably, one end of the adjusting screw rod is inserted into the shaft sleeve and forms a sliding connection therewith.

[0007] Through the above structure, the shaft sleeve can drive the upper wedge block to move by rotating the adjusting screw rod, and the position thereof is adjusted.

[0008] Preferably, a threaded groove matched with the adjusting screw rod is formed in the inner wall of the bottom end of the stand on one side.

[0009] By the above structure, the position of the upper wedge is moved by rotating the adjusting screw rod.

[0010] Preferably, the reinforcing structure comprises a first reinforcing rod, a second reinforcing rod, a reinforcing plate and a second fixing member, the first reinforcing rod is installed on the inner side of the column, the reinforcing plate is installed on the inner side of the beam, the second reinforcing rod is symmetrically installed on the inner side of the reinforcing plate, and the first reinforcing rod, the second reinforcing rod and the reinforcing plate are fixed through the second fixing member.

[0011] Preferably, the first reinforcing rod and the second reinforcing rod are inclined structures.

[0012] By the above structure, the supporting assembly can be reinforced, and the stability thereof is further improved.

[0013] Preferably, the protective structure comprises a protective pad and anti-skid lines, the protective pad is installed on the outer side of the supporting assembly, and the outer surface of the protective pad is provided with the anti-skid lines.

[0014] Preferably, the width of the protective pad is the same as the width of the supporting assembly.

[0015] By the above structure, the supporting assembly can be protected, and the use effect thereof is improved.

[0016] The supporting structure for tunneling of a rectangular cross-section underground passage has the advantages that:

[0017] The supporting assembly can support the rectangular cross-section of the underground passage, the adjusting structure can adjust the angle of the bottom surface of the supporting assembly, so that the supporting assembly can be completely attached to the ground, the stability of the supporting assembly is improved, the reinforcing structure can reinforce the supporting assembly, and the stability of the supporting assembly is further improved, and the protective structure can protect the supporting assembly.

[0018] By the adjusting structure, the upper wedge is moved by rotating the adjusting screw rod, the lower wedge is moved by the upper wedge, the foot pad is moved downward by the connecting block, the height of the foot pad is adjusted, the foot pad can be completely attached to the ground, the contact area is increased, and the stability of the supporting assembly is improved.

[0019] By the reinforcing structure, the stability of the column and the ground is improved by the first reinforcing rod, the stability between the column and the beam is improved by the second reinforcing rod and the reinforcing plate, and the stability of the supporting assembly is further improved by the reinforcing structure.

[0020] By the protective structure, the protective pad can protect the supporting assembly, the friction between the supporting assembly and the rectangular cross-section of the underground passage is reduced, the use effect of the supporting assembly is improved, and the anti-skid lines can have an anti-skid effect. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the front view structural schematic diagram of the utility model;

[0022] Figure 2 It is the front view structural schematic diagram of the reinforcing structure of the utility model;

[0023] Figure 3 It is the front view structural schematic diagram of the protection structure of the utility model;

[0024] Figure 4 It is the front view sectional structure schematic diagram of the adjusting structure of the utility model;

[0025] Figure 5 It is the local structure schematic diagram of the adjusting structure of the utility model.

[0026] The reference signs in the drawing are explained: 1, the rectangular section of the underground passage; 2, supporting assembly; 21, stand; 22, connecting piece; 23, crossbeam; 3, adjusting structure; 31, adjusting screw rod; 32, shaft sleeve; 33, foot pad; 34, first fixing piece; 35, connecting block; 36, lower wedge block; 37, upper wedge block; 38, limiting groove; 4, reinforcing structure; 41, first reinforcing rod; 42, second reinforcing rod; 43, reinforcing plate; 44, second fixing piece; 5, protection structure; 51, protection pad; 52, anti-skid line. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figures 1-5 The utility model provides a kind of supporting structure for rectangular section underground passage tunneling, including supporting assembly 2.

[0029] As shown in Figures 1-5 Supporting assembly 2 is installed to the inside of underground passage rectangular section 1, and supporting assembly 2 is composed of crossbeam 23 and stand 21, and crossbeam 23 and stand 21 are fixed by connecting piece 22.

[0030] The bottom end of the stand column 21 is provided with an adjusting structure 3 for adjusting the height, the adjusting structure 3 comprises a limiting groove 38 opened in the inside bottom end of the stand column 21, a lower wedge block 36 installed in the inside of the limiting groove 38, a connecting block 35 installed at the bottom end of the lower wedge block 36, a foot pad 33 installed at the bottom end of the connecting block 35, a first fixing piece 34 symmetrically installed on the foot pad 33, an upper wedge block 37 installed on the lower wedge block 36, a shaft sleeve 32 fixedly connected with the upper wedge block 37, and an adjusting screw rod 31 installed on one side of the shaft sleeve 32, one end of the adjusting screw rod 31 is inserted into the shaft sleeve 32 and forms a sliding connection with the shaft sleeve 32, and a threaded groove matched with the adjusting screw rod 31 is opened on the inner wall of the bottom end of the stand column 21.

[0031] The support assembly 2 can support the rectangular cross section of the underground passage, the adjusting screw rod 31 is rotated, the shaft sleeve 32 drives the upper wedge block 37 to move, the upper wedge block 37 pushes the lower wedge block 36 to move, the connecting block 35 drives the foot pad 33 to move downward, the height of the foot pad 33 is adjusted, so that the foot pad 33 can be completely matched with the ground, and the stability of the support assembly 2 is improved.

[0032] Referring to Figure 1 and Figure 2 , the inside of the support assembly 2 is provided with a reinforcing structure 4, the reinforcing structure 4 is used for reinforcing the support assembly 2 to a certain extent, and further improves the stability thereof, the reinforcing structure 4 comprises a first reinforcing rod 41, a second reinforcing rod 42, a reinforcing plate 43 and a second fixing piece 44, the first reinforcing rod 41 is installed on the inside of the stand column 21, the reinforcing plate 43 is installed on the inside of the cross beam 23, the inside of the reinforcing plate 43 is symmetrically provided with the second reinforcing rod 42, the first reinforcing rod 41, the second reinforcing rod 42 and the reinforcing plate 43 are fixed by the second fixing piece 44, and the first reinforcing rod 41 and the second reinforcing rod 42 are inclined structures.

[0033] The first reinforcing rod 41 can enhance the stability of the connection between the stand column 21 and the ground, the second reinforcing rod 42 and the reinforcing plate 43 can enhance the stability between the stand column 21 and the cross beam 23, and the stability of the support assembly 2 can be further improved through the reinforcement of the reinforcing structure 4.

[0034] Referring to Figure 1 and Figure 3 , the outside of the support assembly 2 is provided with a protection structure 5, the protection structure 5 is used for protecting the support assembly 2 to a certain extent, the protection structure 5 comprises a protection pad 51 and anti-skid lines 52, the protection pad 51 is installed on the outside of the support assembly 2, the outer surface of the protection pad 51 is provided with the anti-skid lines 52, and the width of the protection pad 51 is the same as the width of the support assembly 2.

[0035] The protection pad 51 can protect the support assembly 2 to a certain extent, reduce the friction between the support assembly 2 and the rectangular cross section of the underground passage, and improve the use effect thereof, and the anti-skid lines 52 can play a certain anti-skid role.

[0036] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A supporting structure for rectangular cross-section underground tunnel excavation, comprising a supporting assembly (2); Its characterized in that: The supporting assembly (2) is installed on the inner side of the rectangular cross-section (1) of the underground tunnel, and the supporting assembly (2) is composed of a cross beam (23) and a stand column (21), and the cross beam (23) and the stand column (21) are fixed through a connecting piece (22); The bottom end of the stand column (21) is provided with an adjusting structure (3) for adjusting the height; The adjusting structure (3) comprises a limiting groove (38) opened at the bottom end of the stand column (21), a lower wedge block (36) installed in the limiting groove (38), a connecting block (35) installed at the bottom end of the lower wedge block (36), a foot pad (33) installed at the bottom end of the connecting block (35), a first fixing piece (34) symmetrically installed on the foot pad (33), an upper wedge block (37) installed on the lower wedge block (36), a shaft sleeve (32) fixedly connected with the upper wedge block (37), and an adjusting lead screw (31) installed on one side of the shaft sleeve (32); The inner side of the supporting assembly (2) is provided with a reinforcing structure (4), and the outer side of the supporting assembly (2) is provided with a protection structure (5).

2. A support structure for driving a rectangular cross-section underground tunnel according to claim 1, characterized in that: One end of the adjusting lead screw (31) is inserted into the shaft sleeve (32) and forms a sliding connection with the shaft sleeve (32).

3. A support structure for driving a rectangular cross-section underground tunnel according to claim 1, characterized in that: A threaded groove matched with the adjusting lead screw (31) is formed on the inner wall of the bottom end of the stand column (21).

4. A support structure for driving a rectangular cross-section underground tunnel according to claim 1, characterized in that: The reinforcing structure (4) comprises a first reinforcing rod (41), a second reinforcing rod (42), a reinforcing plate (43) and a second fixing piece (44), the first reinforcing rod (41) is installed on the inner side of the stand column (21), the reinforcing plate (43) is installed on the inner side of the cross beam (23), the second reinforcing rod (42) is symmetrically installed on the inner side of the reinforcing plate (43), and the first reinforcing rod (41), the second reinforcing rod (42) and the reinforcing plate (43) are fixed through the second fixing piece (44).

5. A support structure for driving a rectangular cross-section underground tunnel according to claim 4, characterized in that: The first reinforcing rod (41) and the second reinforcing rod (42) are inclined structures.

6. A support structure for driving a rectangular cross-section underground tunnel according to claim 1, characterized in that: The protection structure (5) comprises a protection pad (51) and a non-slip pattern (52), the protection pad (51) is installed on the outer side of the supporting assembly (2), and the non-slip pattern (52) is installed on the outer surface of the protection pad (51).

7. A support structure for driving a rectangular cross-section underground tunnel according to claim 6, characterized in that: The width of the protection pad (51) is the same as the width of the supporting assembly (2).

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