Trench excavation temporary supporting structure for municipal pipe network construction

Abstract

The utility model discloses a temporary supporting structure for trench excavation for municipal pipe network construction, the temporary supporting structure for trench excavation for municipal pipe network construction comprises I-shaped steel, two I-shaped steel are in one group, and an inner supporting part is erected between the I-shaped steel in one group. According to the groove excavation temporary supporting structure for municipal pipe network construction, when pressing force towards the inner side of the groove is applied to the I-shaped steel on one side, the abutting plates on the I-shaped steel press the rectangular plates, and therefore the rectangular plates drive the corresponding sliding rods to compress the springs, transverse loads applied to the I-shaped steel on the other side are reduced, and the construction efficiency is improved. And the steel wire rope in the arranged external traction device tensions the I-shaped steel towards the roadbed on the outer side of the I-shaped steel, so that the anti-overturning capability of the I-shaped steel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of on-site construction of municipal pipe networks, in particular to a temporary supporting structure for trench excavation used in municipal pipe network construction. Background Art

[0002] The municipal pipeline network refers to the pipeline network system in urban infrastructure. It is an important part of the city's lifeline and is of great significance for ensuring the normal life of urban residents, promoting urban economic development and maintaining urban safety. The municipal pipeline network mainly includes water supply pipes, drainage pipes, gas pipes, heat pipes, communication pipes, as well as other types of pipeline systems such as power pipes and cable TV pipes to meet the diversified needs of urban development.

[0003] Trench excavation is a critical step in municipal pipeline construction, involving multiple aspects such as pipeline laying, protection, support, and stability. Currently, temporary support is installed after trench excavation in municipal pipeline construction. This typically involves inserting channel steel into the trench sides, then welding steel pipes between two symmetrically distributed channel steels to achieve internal support and improve the stability of the support structure. However, subsequent disassembly is difficult, and when the channel steel on one side is squeezed by the soil, it can easily cause instability in the channel steel on the other side. Summary of the Invention

[0004] The utility model provides a temporary support structure for trench excavation used in municipal pipe network construction, which solves the problem of subsequent disassembly and has a more stable structure.

[0005] The utility model provides a temporary support structure for trench excavation for municipal pipe network construction, comprising I-beams, wherein two I-beams form a group, and an internal support component is provided between the I-beams in a group;

[0006] The web of the I-beam is provided with a plurality of vertical rectangular through cavities equidistantly distributed vertically, and the back of the web of the I-beam is provided with a plurality of abutment plates equidistantly distributed vertically via a connecting frame, and the abutment plates correspond one to one with the vertical rectangular through cavities.

[0007] Wherein, the inner supporting component includes a sleeve, and two symmetrically distributed installation cavities are provided in the sleeve, and an abutment assembly for the abutment plate on the inner supporting I-beam is installed in each of the installation cavities.

[0008] Preferably, the abutment assembly includes a sliding rod, which is inserted into the installation cavity opened by the sleeve and elastically connected to the sleeve, and the other end of the sliding rod is equipped with a rotatably connected insertion rod, the rod head of the insertion rod is fixedly installed with a rectangular plate, and the rod diameter of the insertion rod is smaller than the width of the vertical rectangular through cavity.

[0009] Preferably, a spring is provided in the sleeve, one end of the spring is fixedly connected to the insertion end of the sliding rod, and the other end of the spring is fixedly connected to the inner wall of the installation cavity.

[0010] Preferably, the insertion rods on both sides of the sleeve pass through the vertical rectangular cavities opened by two I-beams respectively, and the rectangular plates on the insertion rods are vertically distributed with the vertical rectangular cavities on the I-beams, and the rectangular plates abut against the inner wall of the abutting plate.

[0011] Preferably, a vertical cavity is formed on the abutment plate, and an external puller is provided on the abutment plate, the external puller includes a horizontal bar, the horizontal bar passes through the abutment plate to form a vertical cavity and is vertically distributed with the vertical cavity, and a steel wire rope is fixedly installed on the horizontal bar, the steel wire rope passes through the vertical cavity and is fixed with a ground nail.

[0012] Preferably, a hammer plate is fixedly embedded on the top of the I-beam, and a tapered portion is cut on the bottom of the I-beam.

[0013] Preferably, side baffles are fixedly embedded on both side walls of the I-beam close to the bottom.

[0014] The beneficial effect of this utility model is that when the I-beam on one side is subjected to a compressive force toward the inside of the trench, the abutment plate on the I-beam presses against the rectangular plate, which in turn drives the corresponding sliding rod to compress the spring, thereby reducing the lateral load on the I-beam on the other side and significantly improving the stability of the trench support. The steel wire rope in the external tensioner tightens the I-beam toward the outer roadbed of the I-beam, thereby improving the I-beam's anti-overturning ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 The present invention is a structural schematic diagram of a preferred embodiment of a temporary support structure for trench excavation for municipal pipe network construction provided by the present invention.

[0017] Figure 2 for Figure 1 Schematic diagram of the partial cross-sectional structure of the I-beam shown.

[0018] Figure 3 for Figure 1 Schematic diagram of the structure of the I-beam shown.

[0019] Figure 4 for Figure 2Schematic diagram of the structure of the inner support component shown.

[0020] Figure 5 for Figure 4 The cross-sectional structural diagram of the inner support component is shown.

[0021] Figure 6 for Figure 1 Schematic diagram of the structure of the external retractor shown.

[0022] Numbers in the figure: 1. I-beam; 1a. Vertical rectangular through cavity; 11. Abutment plate; 11a. Vertical cavity; 111. Connecting frame; 12. Hammering disk; 13. Conical portion; 14. Side baffle; 2. Inner support component; 21. Sleeve; 21a. Mounting cavity; 22. Abutment assembly; 221. Sliding rod; 222. Spring; 223. Insertion rod; 224. Rectangular plate; 3. External puller; 31. Horizontal bar; 32. Wire rope; 33. Ground nail. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 6 An embodiment of the present invention provides a temporary support structure for trench excavation for municipal pipe network construction, comprising an I-beam 1 and an internal support component 2.

[0025] Among them, two I-beams 1 are grouped together, and a number of vertical rectangular through cavities 1a equidistantly distributed up and down are opened on the web of the I-beam 1. A number of abutment plates 11 equidistantly distributed up and down are installed on the back of the web of the I-beam 1 through a connecting frame 111, and the abutment plates 11 are arranged one-to-one correspondingly to the vertical rectangular through cavities 1a.

[0026] An internal support component 2 is installed between a group of I-beams 1. The internal support component 2 includes a sleeve 21. Two installation cavities 21a are symmetrically distributed on the left and right. Each installation cavity 21a is equipped with an abutment component 22 for supporting the abutment plate 11 on the I-beam 1.

[0027] Specifically, the abutment assembly 22 includes a sliding rod 221, which is inserted into the installation cavity 21a opened by the sleeve 21 and is elastically connected to the sleeve 21. Specifically, a spring 222 is provided in the sleeve 21 (in the installation cavity 21a), one end of the spring 222 is fixedly connected to the insertion end of the sliding rod 221, and the other end of the spring 222 is fixedly connected to the inner wall of the middle of the installation cavity 21a. The other end of the sliding rod 221 is equipped with a rotatably connected insertion rod 223, that is, Figure 5 As shown, the right side of the insertion rod 223 is rotationally connected to the left side of the sliding rod 221, and the insertion rod 223 can rotate in the vertical plane with the position of its right side rotation connection as the axis, and the rod head of the insertion rod 223 is fixedly installed with a rectangular plate 224, wherein the rod diameter of the insertion rod 223 is smaller than the width of the vertical rectangular through cavity 1a, and the insertion rods 223 on both sides of the sleeve 21 respectively pass through the vertical rectangular through cavities 1a opened by the two I-beams 1, and the rectangular plate 224 on the insertion rod 223 is vertically distributed with the vertical rectangular through cavity 1a on the I-beam 1, and the rectangular plate 224 is abutted against the inner plate wall of the abutting plate 11.

[0028] During implementation, the I-beams 1 are embedded in pairs on both sides of the trench for municipal pipe network construction, thereby forming support for the trench. When a group of I-beams 1 are fitted in the groove by applying a load, when the applied load acts on the internal pressure sleeve 21, the load of the internal pressure sleeve 21 will be transferred to the insertion rods 223 on both sides through the internal pressure sleeve 21, and the sliding rod 221 slides into the installation cavity 21a and compresses the spring 222. At this time, after keeping the rectangular plates 224 at both ends of the sleeve 21 corresponding to the vertical rectangular through cavities 1a on the two I-beams 1, the insertion rod 223 is released, so that under the action of the elastic force of the spring 222, the insertion rod 223 and the rectangular plate 224 on the insertion rod 223 pass through the vertical rectangular through cavity 1a on the I-beam 1 and abut against the abutment plate 11. Then, the insertion rod 223 is rotated so that the rectangular plate 224 is vertically distributed with the vertical rectangular through cavity 1a, and the abutment component 22 completes the internal support of the two I-beams 1. When the I-beam 1 on one side is subjected to a pressing force toward the inside of the groove, the abutment plate 11 on the I-beam 1 presses the rectangular plate 224, so that the rectangular plate 224 drives the corresponding sliding rod 221 to compress the spring 222, thereby reducing the lateral load on the I-beam 1 on the other side, thereby greatly improving the stability of the groove support.

[0029] It is worth noting that the trench support structure composed of the two I-beams 1 and the inner support component 2 can be flexibly installed and disassembled. When any one of them is damaged, it only needs to be replaced with a new one.

[0030] In this embodiment, the insertion rod 223 is rotated so that the rectangular plate 224 is vertically distributed with the vertical rectangular cavity 1 a , which effectively avoids the risk of the rectangular plate 224 slipping out of the vertical rectangular cavity 1 a opened by the I-beam 1 .

[0031] Furthermore, a hammer plate 12 is fixedly mounted on the top of the I-beam 1 to prevent damage to the top of the I-beam 1 during load application, which could damage the channel steel. A tapered portion 13 is cut into the bottom of the I-beam 1 to facilitate insertion of the I-beam 1 into the groove.

[0032] Among them, the two side walls of the I-beam 1 near the bottom are fixedly embedded with side baffles 14, so that the I-beam 1 can be inserted into the groove after being subjected to load force, and when the side baffles 14 are against the bottom of the groove, it can stop, so that the insertion depth of the I-beam 1 is the same, and a unified standard support is formed.

[0033] In the embodiments of the present invention, please refer to Figure 1 、 Figure 3 and Figure 6 A vertical cavity 11a is formed on the abutment plate 11, and an external retractor 3 is provided on the abutment plate 11. The external retractor 3 includes a horizontal bar 31. The horizontal bar 31 passes through the abutment plate 11 to form a vertical cavity 11a and is vertically distributed with the vertical cavity 11a. A steel wire rope 32 is fixedly installed on the horizontal bar 31. The steel wire rope 32 passes through the vertical cavity 11a and is fixed with a ground nail 33.

[0034] During implementation here, the horizontal bar 31 is inserted from the vertical cavity 11a to the inner side of the abutment plate 11, and then the horizontal bar 31 is rotated so that the horizontal bar 31 is horizontal, so that the horizontal bar 31 and the vertical cavity 11a are vertically distributed. After the steel wire rope 32 is tightened outward, the ground nail 33 is fixed in the roadbed, so that the steel wire rope 32 tightens the I-beam 1 toward the outer roadbed of the I-beam 1, thereby improving the anti-overturning ability of the I-beam 1.

[0035] Each embodiment in this specification is described in a related manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A temporary support structure for trench excavation for municipal pipe network construction, comprising an I-beam (1), characterized in that: The I-beams (1) are grouped into two, and an internal support component (2) is provided between the I-beams (1) in one group; The web of the I-beam (1) is provided with a plurality of vertical rectangular through cavities (1a) equidistantly distributed vertically, and the back of the web of the I-beam (1) is provided with a plurality of abutment plates (11) equidistantly distributed vertically via a connecting frame (111), wherein the abutment plates (11) correspond one to one with the vertical rectangular through cavities (1a); The inner support component (2) comprises a sleeve (21), wherein two symmetrically distributed mounting cavities (21a) are provided in the sleeve (21), and each mounting cavity (21a) is provided with an abutment assembly (22) for abutting the upper abutment plate (11) of the inner support I-beam (1).

2. The temporary support structure for trench excavation for municipal pipe network construction according to claim 1 is characterized in that: The abutting assembly (22) comprises a sliding rod (221), the sliding rod (221) being inserted into a mounting cavity (21a) provided in the sleeve (21) and being elastically connected to the sleeve (21), and a rotatably connected insertion rod (223) being installed at the other end of the sliding rod (221), a rectangular plate (224) being fixedly installed at the rod head of the insertion rod (223), and a rod diameter of the insertion rod (223) being smaller than the width of the vertical rectangular through cavity (1a).

3. The temporary support structure for trench excavation for municipal pipe network construction according to claim 2 is characterized in that: A spring (222) is provided in the sleeve (21), one end of the spring (222) is fixedly connected to the insertion end of the sliding rod (221), and the other end of the spring (222) is fixedly connected to the inner wall of the installation cavity (21a).

4. The temporary support structure for trench excavation for municipal pipe network construction according to claim 3 is characterized in that: The insertion rods (223) on both sides of the sleeve (21) respectively pass through the vertical rectangular through cavities (1a) opened by the two I-beams (1), and the rectangular plates (224) on the insertion rods (223) are vertically distributed with the vertical rectangular through cavities (1a) on the I-beams (1), and the rectangular plates (224) abut against the inner wall of the abutting plate (11).

5. The temporary support structure for trench excavation for municipal pipe network construction according to claim 1 is characterized in that: The abutment plate (11) is provided with a vertical cavity (11a), and an external retractor (3) is provided on the abutment plate (11). The external retractor (3) includes a horizontal bar (31). The horizontal bar (31) passes through the abutment plate (11) to form a vertical cavity (11a) and is vertically distributed with the vertical cavity (11a). A steel wire rope (32) is fixedly installed on the horizontal bar (31). The steel wire rope (32) passes through the vertical cavity (11a) and is fixedly fastened with a ground nail (33).

6. The temporary support structure for trench excavation for municipal pipe network construction according to claim 1, characterized in that: A hammer disc (12) is fixedly embedded on the top of the I-beam (1), and a tapered portion (13) is cut on the bottom of the I-beam (1).

7. The temporary support structure for trench excavation for municipal pipe network construction according to claim 1 or 6, characterized in that: Side baffles (14) are fixedly embedded on both side walls of the I-beam (1) close to the bottom.

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