Dragging box type supporting device for pipeline groove

Abstract

The utility model discloses a dragging box type supporting device for a pipeline groove. The dragging box type supporting device comprises a supporting plate body, a supporting beam, a dragging ring and an asymmetric connecting bracket. The supporting plate bodies are oppositely arranged, asymmetric connecting brackets are arranged on the inner wall of each supporting plate body, and the two ends of the supporting beams are detachably connected with the two sides of the inner walls of the supporting plate bodies through the asymmetric connecting brackets correspondingly, so that the outer walls of the supporting plate bodies are attached to the inner walls of the two sides of a pipeline groove. A box type supporting structure is formed; the single excavation length of the pipeline groove is larger than the length of the supporting plate body, and a slope groove section is formed in front of the box type supporting structure. And the traction ring is arranged on the asymmetric connecting bracket, so that the box type supporting structure is connected to the traction mechanism through the traction ring. The utility model relates to the technical field of pipeline groove supporting, and can solve the problem that in the prior art, steel sheet pile supporting application is not economical and not universal.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline trench support, in particular to a drag box type support device for pipeline trenches. Background Art

[0002] During the pipeline trench excavation stage, ordinary steel sheet piles are usually used for support. Traditional steel sheet piles require pile driving equipment or cranes, with high overall transportation and storage costs, low turnover times, short service life, and high noise or vibration. At the same time, due to the different geological and hydrological environments for the installation of pipeline trenches, the requirements for trench excavation depth and width vary. The use of traditional steel sheet pile support is uneconomical and uncommon. Therefore, it is necessary to provide a tow box support device for pipeline trenches that can solve the problems of uneconomical and uncommon application of steel sheet pile support in the prior art. Summary of the invention

[0003] The utility model aims to provide a drag box type supporting device for pipeline trenches, which can solve the problems of uneconomical and ungeneral application of steel sheet pile supporting in the prior art.

[0004] The utility model is achieved in this way:

[0005] A towable box support device for a pipeline trench comprises a support plate body, a support beam, a traction ring and an asymmetric connecting corbel; a pair of support plate bodies are arranged opposite to each other, and an asymmetric connecting corbel is provided on the inner wall of each support plate body; two ends of a pair of support beams are detachably connected to the inner walls of a pair of support plate bodies on both sides through the asymmetric connecting corbels, so that the outer walls of the pair of support plate bodies are fitted on the inner walls on both sides of the pipeline trench to form a box-type support structure; the single excavation length of the pipeline trench is greater than the length of the support plate body, and a slope groove section is formed in front of the box-type support structure; the traction ring is arranged on the asymmetric connecting corbel, so that the box-type support structure is connected to the traction mechanism through the traction ring.

[0006] The asymmetric connecting corbel includes a connecting body, a first corbel and a second corbel; the connecting body is fixedly arranged on the inner wall of the support plate body, the first corbel and the second corbel are respectively arranged between the top and bottom of the connecting body and the inner wall of the support plate body, and the supporting angle of the first corbel is different from the supporting angle of the second corbel.

[0007] The angle between the supporting inclined surface of the first corbel and the horizontal plane is smaller than the angle between the supporting inclined surface of the second corbel and the horizontal plane.

[0008] The connecting body includes a top plate, a bottom plate, a web plate, a beam connecting plate, a support connecting plate and a side plate; the top plate and the bottom plate are respectively vertically connected to the top and bottom of the web plate to form an I-shaped structure, the beam connecting plate and the support connecting plate are respectively vertically connected to the two sides of the web plate to form an H-shaped structure, and a number of side plates are respectively connected between the web plate, the beam connecting plate and the support connecting plate and are distributed in parallel between the top plate and the bottom plate; the support connecting plate is fixedly connected to the inner wall of the support plate body, the first corbel is connected between the top plate and the inner wall of the support plate body, the second corbel is connected between the bottom plate and the inner wall of the support plate body, the beam connecting plate is detachably connected to the end of the support beam, and the side plate is fixedly connected to the traction ring.

[0009] A connecting plate is provided at the end of the support beam, and the support beam is detachably connected to the beam connecting plate of the connecting body through the connecting plate.

[0010] The support plate body includes a transverse plate and a steel section; a pair of steel sections are vertically spaced, and the two ends of the transverse plate are vertically connected between the pair of steel sections. Several transverse plate members are vertically spliced ​​to form a support plate, and two support plates and a pair of steel sections are enclosed to form the support plate body.

[0011] The number of transverse plate members in the support plate that fits the inner wall of the pipeline groove is greater than the number of transverse plate members in the support plate that is away from the inner wall of the pipeline groove, and a blade angle structure with high inside and low outside is formed at the bottom of the support plate body. The support plate away from the inner wall of the pipeline groove is fixedly connected to the support connecting plate, the first corbel and the second corbel.

[0012] Along the forward direction of the box-type supporting structure, the soil in front of the box-type supporting structure is a slope-shaped trough section. When the box-type supporting structure is dragged forward into the slope-shaped trough section, backfill soil is provided between the slope-shaped trough section and the box-type supporting structure.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model is provided with a supporting plate body, a supporting beam and an asymmetric connecting corbel. A pair of supporting plate bodies and a pair of supporting beams are detachably connected through the asymmetric connecting corbel. The asymmetric connecting corbel can ensure the flexible replacement of the supporting beam and the supporting plate body to adapt to pipeline grooves of different sizes, and can also ensure the reliable connection and force transmission between the supporting beam and the supporting plate body. It has higher adaptability to different forces in different parts, and only needs to set a pair of supporting beams to achieve a safe and effective support effect.

[0015] 2. The utility model is provided with a transverse plate, a steel member and a blade angle structure. Through the combination of a plurality of transverse plates and a pair of steel members, it can adapt to the support of pipeline grooves of different depths and form a double support effect through two support plates; the different heights of the bottoms of the two support plates form a blade angle structure, so that the support plate body can be more conveniently placed in the pipeline groove and stably supported in the pipeline groove, which is conducive to improving the support effect.

[0016] 3. Since the utility model is provided with a slope groove section, the soil in front of the box-type support structure is excavated to form a slope structure, which can prevent the soil in front from collapsing when pipeline laying and other construction operations are carried out in the box-type support structure, thereby ensuring construction safety. At the same time, when the box-type support structure is moved into the slope groove section, the soil is backfilled and compacted between the outer side of the box-type support structure and the inner wall of the slope structure, thereby ensuring a close fit between the outer wall of the box-type support structure and the soil, thereby ensuring the support effect.

[0017] 4. The utility model can simplify the structure while ensuring the support effect. It is convenient and quick to disassemble and replace. It has high combination flexibility and versatility. It is conducive to the efficient construction of auxiliary pipeline trenches and can be used in a circular manner. It can be constructed without piling equipment, cranes, etc. Compared with traditional steel sheet pile construction, it can save about 30% of construction costs. It has a small volume after disassembly, which is convenient for transportation and storage. The bolt connection method is more convenient, and there is no noise or vibration during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model of the drag box type supporting device for pipeline trench;

[0019] Figure 2 yes Figure 1 A partial enlarged view of

[0020] Figure 3 This is a front view of the utility model of a drag box type support device for pipeline trench;

[0021] Figure 4 It is a top view of the drag box type supporting device for pipeline trench of the utility model.

[0022] In the figure, 1 is a support beam, 101 is a connecting plate, 2 is a traction ring, 301 is a connecting body, 302 is a first corbel, 303 is a second corbel, 401 is a cross plate, 402 is a steel part, and 403 is an edge angle structure. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Please see attached Figure 1 To Attachment Figure 4A towed box support device for a pipeline trench comprises a support plate body, a support beam 1, a traction ring 2 and an asymmetric connecting bracket; a pair of support plate bodies are arranged opposite to each other, and an asymmetric connecting bracket is provided on the inner wall of each support plate body, and the two ends of a pair of support beams 1 are detachably connected to the inner walls of a pair of support plate bodies through asymmetric connecting brackets, so that the outer walls of a pair of support plate bodies are attached to the inner walls of the pipeline trench on both sides to form a box-type support structure; the single excavation length of the pipeline trench is greater than the length of the support plate body, and a slope groove section is formed in front of the box-type support structure; the traction ring 2 is arranged on the asymmetric connecting bracket, so that the box-type support structure is connected to the traction mechanism through the traction ring 2 via a cable.

[0025] Usually, the width of the pipeline trench is 1-4m and the depth is 2.5-3m. Preferably, the support beam 1 can be made of I-beam or other steel, and the length of the support beam 1 can be selected according to the adaptability of the width of the pipeline trench. The support beam 1 is an integrated structure with good integrity and high support strength, so as to achieve a better support effect. The support plate body can be made of steel components, and the height of the support plate body can be selected according to the adaptability of the depth of the pipeline trench.

[0026] The asymmetric connecting corbel is used to connect the support beam 1 and the support plate body, which is convenient for flexible replacement of the support beam 1 and the support plate body under different working conditions. According to the force size of different parts, the asymmetric connecting corbel adopts an asymmetric structure, which can improve the force stability and safety of the support beam 1.

[0027] The traction ring 2 is used to connect the traction mechanism, so as to facilitate the synchronous traction movement during the pipeline trench excavation process, thereby providing support for the pipeline trench and facilitating construction operations such as the laying of internal pipelines.

[0028] Please see attached Figure 2 The asymmetric connecting corbel includes a connecting body 301, a first corbel 302 and a second corbel 303; the connecting body 301 is fixedly arranged on the inner wall of the supporting plate body, the first corbel 302 and the second corbel 303 are respectively arranged between the top and bottom of the connecting body 301 and the inner wall of the supporting plate body, and the supporting angle of the first corbel 302 is different from the supporting angle of the second corbel 303.

[0029] The first corbel 302 and the second corbel 303 both adopt a right-angled triangle structure, which is used to form a support reinforcement between the inner wall of the support plate body and the connecting body 301. The asymmetric structure formed by the right-angled triangle structures with different hypotenuse angles can provide support of different strengths to meet the different support strength requirements of the upper and middle and lower parts, thereby ensuring the support effect while reducing the setting of the support beam 1.

[0030] Please see attached Figure 2, the angle between the supporting inclined surface of the first corbel 302 and the horizontal plane is smaller than the angle between the supporting inclined surface of the second corbel 303 and the horizontal plane.

[0031] The first corbel 302 has a longer hypotenuse of the right triangle, which can provide deeper support and reinforcement downward, so there is no need to set multiple support beams 1 in the longitudinal direction. A pair of support beams 1 can be arranged on the upper part of the support plate body, which reduces the use of components and has a simpler structure.

[0032] Please see attached Figure 2 The connecting body 301 includes a top plate, a bottom plate, a web plate, a beam connecting plate, a support connecting plate and a side plate; the top plate and the bottom plate are respectively vertically connected to the top and bottom of the web plate to form an I-shaped structure, the beam connecting plate and the support connecting plate are respectively vertically connected to the two sides of the web plate to form an H-shaped structure, and a number of side plates are respectively connected between the web plate, the beam connecting plate and the support connecting plate and are distributed in parallel between the top plate and the bottom plate; the support connecting plate is fixedly connected to the inner wall of the supporting plate body, the first corbel 302 is connected between the top plate and the inner wall of the supporting plate body, the second corbel 303 is connected between the bottom plate and the inner wall of the supporting plate body, the beam connecting plate is detachably connected to the end of the supporting beam 1, and the side plate is fixedly connected to the traction ring 2.

[0033] The I-shaped structure of the top plate, bottom plate and web plate can cooperate with the first corbel 302 and the second corbel 303 to effectively bear the vertical pressure, and the H-shaped structure of the beam connecting plate and the support connecting plate can cooperate with the support beam 1 to effectively bear the lateral pressure, thereby ensuring the support effect.

[0034] At the same time, the setting of the side plate facilitates the installation of the traction ring 2 without affecting the connection and force of the connecting body 301. The support connecting plate can be directly welded to the inner wall of the support plate body to improve the connection strength and structural integrity. The beam connecting plate facilitates the disassembly and assembly of the support beam 1, and is convenient for replacing support beams 1 and support plate bodies of different specifications according to actual working conditions.

[0035] Please see attached Figure 2 The end of the support beam 1 is provided with a connecting plate 101, and the support beam 1 is detachably connected to the beam connecting plate of the connecting body 301 through the connecting plate 101 via bolts.

[0036] The connecting plate 101 can be made of a steel plate of the same size as the beam connecting plate. The two are fitted together and locked by bolts and nuts. The connecting area is large, ensuring connection reliability and force transmission stability.

[0037] Please see attached Figure 1 and attached Figure 2The support plate body includes a transverse plate member 401 and a steel member 402; a pair of steel members 402 are vertically spaced, and both ends of the transverse plate member 401 are vertically connected between the pair of steel members 402. Several transverse plate members 401 are vertically spliced ​​to form a support plate, and two support plates and a pair of steel members 402 are enclosed to form the support plate body.

[0038] Preferably, the steel member 402 can be made of H-steel, and the length of the H-steel can be selected according to the depth of the pipeline groove. The cross plate 401 can be made of a long steel plate, and the two ends of the steel plate are welded and fixed to a pair of H-steels. The height and number of the steel plates can be selected according to the depth of the pipeline groove. The two support plates can form a double protection effect.

[0039] Please see attached Figure 1 and attached Figure 3 The number of the transverse plate members 401 in the support plate that fits the inner wall of the pipeline groove is greater than the number of the transverse plate members 401 in the support plate that is away from the inner wall of the pipeline groove, and a blade angle structure 403 with a high inside and a low outside is formed at the bottom of the support plate body. The support plate away from the inner wall of the pipeline groove is fixedly connected to the support connecting plate, the first corbel 302 and the second corbel 303.

[0040] The height of the outer supporting plate is greater than that of the inner supporting plate, and a blade angle structure 403 can be formed at the bottom of the supporting plate body, making it easier to place the box-type supporting structure into the pipeline groove.

[0041] Along the forward direction of the box-type supporting structure, the soil in front of the box-type supporting structure is a slope-shaped trough section (not shown in the figure). When the box-type supporting structure is dragged forward into the slope-shaped trough section, backfill soil is provided between the slope-shaped trough section and the box-type supporting structure.

[0042] The soil in front of the box-type support structure is excavated by slope reduction to form a sloped groove section, which can improve the construction safety when laying pipes inside the box-type support structure and prevent the collapse of the soil on both sides. At the same time, after the box-type support structure is moved into the sloped groove section, in order to ensure the support safety and stability of the box-type support structure, it is necessary to backfill and compact the gap between the sloped groove section and the box-type support structure to ensure that the outer wall of the box-type support structure fits tightly with the outer soil.

[0043] Please see attached Figure 1 To Attachment Figure 4 The construction method for excavating pipeline trenches using the utility model is:

[0044] A support beam 1 of corresponding length is selected according to the excavation width of the pipeline trench, and a support plate body of corresponding height is selected according to the excavation depth of the pipeline trench.

[0045] The two ends of the support beam 1 are connected to the beam connecting plates of the connecting body 301 on the inner wall of a pair of supporting plate main bodies through connecting plates 101 by bolts, and a pair of supporting plate main bodies form a box-type supporting structure through two support beams 1.

[0046] When the excavation of the pipeline trench is longer than the length of the support plate body, the box-type support structure is placed in the pipeline trench, the outer walls of a pair of support plate bodies are fitted with the inner walls on both sides of the pipeline trench, and two support beams 1 are used to provide support to form a support effect. A section of the pipeline in the pipeline trench can be laid under the protection of the box-type support structure.

[0047] One end of the box-type support structure for pipeline trench installation is excavated using conventional technology to form a trench. In order to improve the construction safety of pipeline laying, the soil in front of the box-type support structure is excavated using a sloped excavation method to form a sloped trench section with a sloped structure to avoid soil collapse.

[0048] After a section of pipeline is laid, continue to dig a trench forward, the excavation length is the length of the support plate body, and the box-type support structure is dragged forward by the traction ring 2 and the traction equipment to the location where the next section of pipeline is laid. Since the soil part at this location is a slope structure, the gap between the inner wall of the pipeline trench and the outer wall of the support plate body is backfilled and compacted to ensure the stable setting and support effect of the box-type support structure.

[0049] The next section of the pipeline is laid and connected to the previous section. When the next section of the pipeline is laid, the soil in front of it is still excavated by slope reduction to form a slope structure to avoid soil collapse.

[0050] Repeat the above construction steps until the laying and docking of the last section of the pipeline is completed.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drag box type support device for pipeline trench, characterized by: The invention comprises a supporting plate body, a supporting beam (1), a traction ring (2) and an asymmetric connecting bracket; a pair of supporting plate bodies are arranged opposite to each other, an asymmetric connecting bracket is arranged on the inner wall of each supporting plate body, and the two ends of the pair of supporting beams (1) are detachably connected to the inner walls of the pair of supporting plate bodies through the asymmetric connecting brackets, so that the outer walls of the pair of supporting plate bodies are fitted on the inner walls of the two sides of the pipeline trench to form a box-type supporting structure; the single excavation length of the pipeline trench is greater than the length of the supporting plate body, and a slope groove section is formed in front of the box-type supporting structure; the traction ring (2) is arranged on the asymmetric connecting bracket, so that the box-type supporting structure is connected to the traction mechanism through the traction ring (2).

2. The drag box type support device for pipeline trench according to claim 1 is characterized in that: The asymmetric connecting corbel comprises a connecting body (301), a first corbel (302) and a second corbel (303); the connecting body (301) is fixedly arranged on the inner wall of the supporting plate body, the first corbel (302) and the second corbel (303) are respectively arranged between the top and bottom of the connecting body (301) and the inner wall of the supporting plate body, and the supporting angle of the first corbel (302) is different from the supporting angle of the second corbel (303).

3. The drag box type support device for pipeline trench according to claim 2 is characterized in that: The included angle between the supporting inclined surface of the first bracket (302) and the horizontal plane is smaller than the included angle between the supporting inclined surface of the second bracket (303) and the horizontal plane.

4. The drag box type support device for pipeline trench according to claim 2 is characterized in that: The connecting body (301) comprises a top plate, a bottom plate, a web plate, a beam connecting plate, a supporting connecting plate and a side plate; the top plate and the bottom plate are respectively vertically connected to the top and bottom of the web plate to form an I-shaped structure, the beam connecting plate and the supporting connecting plate are respectively vertically connected to the two sides of the web plate to form an H-shaped structure, and a plurality of side plates are respectively connected between the web plate, the beam connecting plate and the supporting connecting plate and are distributed in parallel between the top plate and the bottom plate; the supporting connecting plate is fixedly connected to the inner wall of the supporting plate body, the first corbel (302) is connected between the top plate and the inner wall of the supporting plate body, the second corbel (303) is connected between the bottom plate and the inner wall of the supporting plate body, the beam connecting plate is detachably connected to the end of the supporting beam (1), and the side plate is fixedly connected to the traction ring (2).

5. The drag box type support device for pipeline trench according to claim 4 is characterized in that: The end of the support beam (1) is provided with a connecting plate (101), and the support beam (1) is detachably connected to the beam connecting plate of the connecting body (301) via the connecting plate (101).

6. The drag box type support device for pipeline trench according to claim 1, 2 or 4, characterized in that: The support plate body comprises a transverse plate member (401) and a steel member (402); a pair of steel members (402) are vertically spaced apart, and two ends of the transverse plate member (401) are vertically connected between the pair of steel members (402); a plurality of transverse plate members (401) are vertically spliced ​​to form a support plate; two support plates and a pair of steel members (402) are enclosed to form the support plate body.

7. The drag box type support device for pipeline trench according to claim 6 is characterized in that: The number of the transverse plate members (401) in the support plate that fits the inner wall of the pipeline groove is greater than the number of the transverse plate members (401) in the support plate that is away from the inner wall of the pipeline groove, and a blade angle structure (403) with a high inside and a low outside is formed at the bottom of the support plate body. The support plate away from the inner wall of the pipeline groove is fixedly connected to the support connecting plate, the first corbel (302) and the second corbel (303).

8. The drag box type support device for pipeline trench according to claim 1 is characterized in that: Along the forward direction of the box-type supporting structure, the soil in front of the box-type supporting structure is a slope-shaped trough section. When the box-type supporting structure is dragged forward into the slope-shaped trough section, backfill soil is provided between the slope-shaped trough section and the box-type supporting structure.

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