A replacement structure for a single corrugated plate of an underground corrugated steel pipe gallery after deformation

Abstract

The utility model relates to the field of building construction technology, concretely is a kind of replacement structure after single piece corrugated plate of underground corrugated pipe gallery is deformed, it includes the corrugated plate assembly for replacing deformed corrugated plate, and the end of corrugated plate assembly is fixedly connected with corrugated pipe gallery;Corrugated plate assembly includes four blocks array arrangement's first quadrant's corrugated plate one, second quadrant's corrugated plate two, third quadrant's corrugated plate three, fourth quadrant's corrugated plate four, still includes the integrally-formed connecting frame of cross type, and connecting frame includes the connecting rod one between corrugated plate one and corrugated plate two, the connecting rod two between corrugated plate two and corrugated plate three, the connecting rod three between corrugated plate three and corrugated plate four, the connecting rod four between corrugated plate four;Solved the problem that deformed corrugated plate is difficult to replace in corrugated pipe gallery;Realize the safe and efficient replacement of single piece corrugated steel, guarantee the structural integrity and use function of corrugated pipe gallery.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a replacement structure for a single corrugated plate of an underground corrugated steel pipe gallery after deformation. Background Technology

[0002] Corrugated steel pipe galleries, as a new type of underground integrated pipe gallery structure, have advantages such as convenient construction, excellent mechanical properties, and strong seismic resistance, and are increasingly widely used in municipal engineering. However, during long-term service, individual corrugated steel pieces are prone to local deformation, cracking, corrosion, and other damage due to factors such as soil load, geological settlement, and construction disturbance. If not replaced in time, this can lead to a decline in the overall structural integrity of the pipe gallery and even cause safety hazards such as leakage and collapse.

[0003] The existing method of replacing single corrugated steel sections in corrugated steel pipe racks has significant drawbacks: First, when directly removing damaged corrugated steel, the supporting force between the pipe rack and the soil drops sharply, which can easily cause instability of the surrounding soil and poses a significant safety risk; second, the new corrugated steel is mostly an integral structure, which is difficult to transport and install due to the limited space inside the pipe rack, and the connection and sealing and integrity with the original pipe rack structure are difficult to guarantee; third, there is a lack of targeted reinforcement and sealing measures, and the waterproof performance and structural strength of the pipe rack after replacement are difficult to restore to the design standards.

[0004] Therefore, there is an urgent need for a safe, efficient, and reliable technology for replacing deformed corrugated steel in corrugated steel pipe racks to address the shortcomings of existing technologies. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a replacement structure for deformed single corrugated steel plates in underground corrugated steel pipe corridors. Through technical means such as grouting to solidify the soil, assembling and replacing corrugated plates in sections, strengthening connections and sealing for waterproofing, and secondary grouting reinforcement, the safe and efficient replacement of single corrugated steel plates can be achieved, ensuring the structural integrity and functionality of the corrugated steel pipe corridor.

[0006] This utility model is achieved using the following technical solution: A replacement structure for a single corrugated plate in an underground corrugated steel pipe gallery after deformation includes a corrugated plate assembly for replacing the deformed corrugated plate, the ends of which are fixedly connected to the corrugated steel pipe gallery. The corrugated plate assembly includes four corrugated plates arranged in an array: one in the first quadrant, one in the second quadrant, one in the third quadrant, and one in the fourth quadrant. It also includes a cross-shaped integrally formed connecting frame, which includes a connecting rod one between corrugated plates one and two, a connecting rod two between corrugated plates two and three, a connecting rod three between corrugated plates three and four, and a connecting rod four between corrugated plates four.

[0007] Furthermore, the connecting rod one, connecting rod two, connecting rod three, and connecting rod four are all T-shaped structures composed of a horizontal plate and a vertical plate perpendicular to the horizontal plate, with several evenly distributed connecting holes on the vertical plate.

[0008] Furthermore, each of the corrugated plates 1, 2, 3, and 4 has an outer connecting plate fixed at its end furthest from the connecting frame. The corrugated plates 1, 2, 3, and 4 also have an inner connecting plate fixed at a certain distance from its end, which is vertical. Each inner connecting plate has an inner connecting hole corresponding to the connecting hole. Two inner connecting holes in opposite positions and one connecting hole are fixed together with a fastening bolt.

[0009] Furthermore, the end of the first corrugated plate near the first connecting rod overlaps with the end of the second corrugated plate, and a waterproof adhesive strip is sandwiched at the overlapping position; the end of the second corrugated plate near the second connecting rod overlaps with the end of the third corrugated plate, and a waterproof adhesive strip is sandwiched at the overlapping position; the end of the third corrugated plate near the third connecting rod overlaps with the end of the corrugated plate, and a waterproof adhesive strip is sandwiched at the overlapping position; the end of the fourth corrugated plate near the first connecting rod overlaps with the end of the first corrugated plate, and a waterproof adhesive strip is sandwiched at the overlapping position.

[0010] Furthermore, each external connection is provided with several external connection holes, and the corrugated steel pipe gallery is provided with fixing holes corresponding to the external connection holes. Fastening bolts are fixed in the fixing holes and the matching external connection holes.

[0011] Furthermore, grouting holes are drilled in the deformable corrugated plate, and mortar is injected between the deformable corrugated plate and the soil through the grouting holes.

[0012] Furthermore, the corrugated plate assembly is provided with grouting holes and observation holes, through which mortar is injected between the corrugated plate assembly and the soil.

[0013] The present invention has a reasonable and reliable structural design and has the following beneficial effects: 1. Safety performance is significantly improved. By grouting and solidifying the contact surface between the deformable corrugated plate and the soil, a stable support layer is formed before the deformable corrugated plate is removed, which avoids soil instability and eliminates safety hazards during construction.

[0014] 2. Convenient and efficient installation: The new corrugated plate assembly is divided into four sections, which can be adapted to the narrow space inside the corrugated steel pipe gallery, reducing the difficulty of transportation and installation and significantly shortening the construction cycle.

[0015] 3. The structure has strong overall integrity. The cross-shaped connecting frame is used to strengthen the connection between the corrugated plate components. The stainless steel bolts are used to accurately connect with the original corrugated steel pipe gallery structure, which effectively ensures the structural strength and integrity of the corrugated steel pipe gallery after replacement.

[0016] 4. Reliable waterproof performance: The overlapping parts of the corrugated steel sections are sealed with waterproof rubber strips. Combined with the overlapping design of the corrugated structure, the waterproof sealing performance of the corrugated steel pipe gallery is greatly improved, avoiding leakage problems.

[0017] 5. Secondary reinforcement protection: After installation, secondary grouting is carried out through the reserved grouting holes to further enhance the connection strength between the corrugated plate components and the soil, and improve the long-term stability of the corrugated steel pipe gallery. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the connecting frame in this utility model.

[0020] Figure 3 This is a schematic diagram of the T-shaped structure in this utility model.

[0021] In the diagram: 1 - Corrugated plate one, 2 - Corrugated plate two, 3 - Corrugated plate three, 4 - Corrugated plate four, 5 - Connecting rod one, 6 - Connecting rod two, 7 - Connecting rod three, 8 - Connecting rod four, 9 - Horizontal plate, 10 - Vertical plate, 11 - Connecting hole, 12 - Outer connecting plate, 13 - Inner connecting plate, 14 - Inner connecting hole, 15 - Outer connecting hole. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

[0023] A replacement structure for a deformed single corrugated plate in an underground corrugated steel pipe gallery, as shown in the attached figure. Figure 1 ~Appendix Figure 3 As shown; it includes a corrugated plate assembly for replacing deformed corrugated plates, the ends of which are fixedly connected to the corrugated steel pipe gallery; The corrugated plate assembly includes four corrugated plates arranged in an array: one in the first quadrant (1), one in the second quadrant (2), one in the third quadrant (3), and one in the fourth quadrant (4). It also includes a cross-shaped, integrally formed connecting frame, which includes a connecting rod 5 between corrugated plates 1 and 2, a connecting rod 6 between corrugated plates 2 and 3, a connecting rod 7 between corrugated plates 3 and 4, and a connecting rod 8 between corrugated plates 4.

[0024] This invention breaks through the limitations of replacing single corrugated plates in traditional corrugated steel pipe corridors. It constructs a structure and method that integrates grouting reinforcement, segmented assembly, reinforcement connection, sealing and waterproofing, and secondary grouting reinforcement. The corrugated plate assembly is used to replace deformed corrugated plates. During replacement, the plates are assembled sequentially in the order of corrugated plate 1, corrugated plate 2, corrugated plate 3, and corrugated plate 4. After assembly, the corrugated plate 1, corrugated plate 2, corrugated plate 3, and corrugated plate 4 are fixedly connected using a cross-shaped connecting frame. Then, the outer end of the corrugated plate assembly is fixedly connected to the corrugated steel pipe corridor to complete the replacement of the deformed corrugated pipe. This invention solves the core problems of soil instability, installation difficulties, poor sealing, and insufficient long-term stability in the prior art, providing a brand-new technical path for the maintenance and repair of corrugated steel pipe corridors. It has significant technical innovation and engineering application value.

[0025] As attached Figure 3 As shown; the connecting rod 1 5, connecting rod 2 6, connecting rod 3 7, and connecting rod 4 8 are all T-shaped structures composed of a horizontal plate 9 and a vertical plate 10 perpendicular to the horizontal plate 9, and the vertical plate 10 has a number of evenly distributed connecting holes 11.

[0026] The connecting rod 5 is used to fix corrugated plate 1 and corrugated plate 2, the connecting rod 6 is used to fix corrugated plate 2 and corrugated plate 3, the connecting rod 7 is used to fix corrugated plate 3 and corrugated plate 4, and the connecting rod 8 is used to fix corrugated plate 4 and corrugated plate 1. The connecting rods 5, 6, 7, and 8 together form a cross-shaped connecting frame, which makes corrugated plate 1, 2, 3, and 4 form a whole, used to replace deformed corrugated plates, effectively ensuring the structural strength of the replaced corrugated plate assembly.

[0027] The horizontal plate 9 in the T-shaped structure can strengthen the structural strength of the cross-shaped connecting frame, and the vertical plate 10 and the connecting hole 11 are used to fix and connect with the adjacent corrugated plate assembly by stainless steel bolts.

[0028] As attached Figure 1 Appendix Figure 3 As shown; the ends of corrugated plates 1, 2, 3, and 4 away from the connecting frame are all fixed with an outer connecting plate 12 that is flush with and vertical to the end of the corrugated plate. The ends of corrugated plates 1, 2, 3, and 4 near the connecting frame are all fixed with an inner connecting plate 13 that is spaced a certain distance from the end of the corrugated plate and is vertical to the end of the corrugated plate. Each inner connecting plate 13 has an inner connecting hole 14 that corresponds to the connecting hole 11. Two inner connecting holes 14 in opposite positions and one connecting hole 11 are fixed with a fastening bolt.

[0029] The outer connecting plate 12 is used to fix the corrugated steel pipe gallery to the undamaged corrugated steel pipe gallery. During the initial installation of the corrugated steel pipe gallery, the welded plates at the ends of the single corrugated plates are fixed to each other by stainless steel bolts. Therefore, the outer connecting plate 12 in this utility model is fixed to the corrugated steel pipe gallery in the same way to ensure the integrity of the corrugated steel pipe gallery.

[0030] The fastening bolts are stainless steel bolts.

[0031] The end of corrugated plate 1 near connecting rod 5 overlaps with the end of corrugated plate 2, and a waterproof adhesive strip is sandwiched at the overlapping position; the end of corrugated plate 2 near connecting rod 6 overlaps with the end of corrugated plate 3, and a waterproof adhesive strip is sandwiched at the overlapping position; the end of corrugated plate 3 near connecting rod 7 overlaps with the end of corrugated plate 4, and a waterproof adhesive strip is sandwiched at the overlapping position; the end of corrugated plate 4 near connecting rod 5 overlaps with the end of corrugated plate 1, and a waterproof adhesive strip is sandwiched at the overlapping position.

[0032] The ends of the corrugated plates 1, 2, 3, and 4 near the cross-shaped connecting frame are all provided with extended overlapping parts, and adjacent extended overlapping parts overlap each other with the same size.

[0033] As attached Figure 3 As shown; each external connecting plate 12 has several external connecting holes 15, and the corrugated steel pipe gallery has fixing holes corresponding to the external connecting holes 15. Fastening bolts are fixed in the fixing holes and the matching external connecting holes 15.

[0034] The outer connecting plate 12 and the outer connecting hole 15 are used for fixed connection with the corrugated steel pipe gallery, and the fastening bolts are stainless steel bolts.

[0035] Grouting holes are drilled in the deformable corrugated plate, and mortar is injected between the deformable corrugated plate and the soil through the grouting holes.

[0036] The grouting holes on the deformable corrugated plate are used to inject mortar between the deformable corrugated plate and the soil before the plate is removed. Once the mortar has solidified, it reinforces the soil and prevents it from collapsing when the plate is removed.

[0037] The corrugated plate assembly is provided with grouting holes and observation holes, through which mortar is injected between the corrugated plate assembly and the soil.

[0038] The grouting holes on the corrugated plate assembly are used to inject mortar between the corrugated plate assembly and the soil after the corrugated plate assembly is installed. After the mortar solidifies, it reinforces the soil and fills the gap between the corrugated plate assembly and the soil, thereby enhancing the overall structure of the corrugated steel pipe gallery.

[0039] This utility model is installed through the following steps: Step S1: Preliminary investigation and preparation; investigate the location, degree of deformation, and surrounding soil conditions of the deformable corrugated plate, determine the location and number of grouting holes, and determine the mixing ratio of the curing grout.

[0040] Step S2: Grouting and curing reinforcement; Grouting holes are opened on the deformed corrugated plate, grouting pipes are arranged, and mortar is injected into the contact surface between the deformed corrugated plate and the soil through grouting equipment. After the grout cures, a stable soil support layer is formed.

[0041] The grouting holes have a diameter of 20mm to 50mm and a spacing of 300mm to 500mm. The grouting pipe is made of seamless steel and is sealed to the grouting holes with sealant. The mortar uses cement-water glass double-liquid grout or cement-based grouting material. The initial setting time of the grout is controlled within 30min to 60min, and the final setting time is controlled within 2h to 4h.

[0042] Step S3: Remove the deformed corrugated plate; after the curing strength reaches the standard, remove the deformed corrugated plate and clean the debris inside the corrugated steel pipe gallery and the connection parts.

[0043] Deformed corrugated sheets should be removed by cutting or disassembling to avoid causing secondary damage to the surrounding structure.

[0044] Step S4: Assemble the corrugated plate components in sections; transport corrugated plate 1, corrugated plate 2, corrugated plate 3, and corrugated plate 4 to the inside of the corrugated steel pipe gallery in sequence, and assemble them according to the design position. The overhanging overlap of corrugated plate 1 overlaps with the overhanging overlap of corrugated plate 2 and corrugated plate 4 respectively; the overhanging overlap of corrugated plate 3 overlaps with the overhanging overlap of corrugated plate 2 and corrugated plate 4 respectively.

[0045] The length of the overhanging lap joint is 50mm~100mm, and the corrugation depth of the overhanging lap joint is consistent with the corrugation depth of the corrugated steel pipe gallery.

[0046] Step S5: Connection and reinforcement fixing; Install connecting brackets at the center positions of corrugated plate 1, corrugated plate 2, corrugated plate 3, and corrugated plate 4, so that connecting rod 5 is located between corrugated plate 1 and corrugated plate 2, connecting rod 6 is located between corrugated plate 2 and corrugated plate 3, connecting rod 7 is located between corrugated plate 3 and corrugated plate 4, and connecting rod 8 is located between corrugated plate 4 and corrugated plate 1; at the same time, stainless steel bolts are used to pass through the matching connecting holes 11 and inner connecting holes 14 to achieve a tight connection, enhance the structural strength and integrity.

[0047] The connecting frame is made of Q235 or Q345 steel. The thickness of the horizontal plate 9 and the vertical plate 10 is 5mm~10mm, and the width is 80mm~150mm. The spacing between two adjacent connecting holes 11 is 100mm~200mm. The stainless steel bolts are made of 304 or 316 stainless steel, with a diameter of 8mm~16mm, and the tightening torque is controlled at 30N*m~60N*m.

[0048] Step S6: Waterproof sealing treatment; fill the lap joints of the corrugated plate assembly with waterproof sealant strips to ensure a tight seal and complete the waterproof treatment.

[0049] The waterproof strips are made of butyl rubber or EPDM rubber, with a thickness of 3mm to 8mm and a width of 20mm to 50mm.

[0050] Step S7: Secondary grouting reinforcement; through the grouting holes reserved on the corrugated plate assembly, inject solidified mortar into the connection between the corrugated plate assembly and the soil, and monitor the grouting situation through the observation holes to ensure that the grouting is full.

[0051] The reserved grouting holes and observation holes have a diameter of 15mm~30mm and a spacing of 400mm~600mm, with the observation holes and grouting holes arranged alternately. The curing mortar uses cement-based grouting material, and the grouting pressure is controlled at 0.2MPa~0.4MPa until the grout overflows from the observation hole, at which point grouting is stopped.

[0052] Step S8: Acceptance and Restoration; The structural strength and waterproof performance of the replaced corrugated plate components are inspected and accepted. Once qualified, the corrugated steel pipe gallery is restored to its original function.

[0053] Structural strength testing is performed using ultrasonic testing or stress testing, while waterproofing performance testing is performed using water tightness testing or water seepage testing.

[0054] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A replacement structure for a deformed single corrugated sheet of an underground corrugated steel pipe gallery, characterized by: Includes a corrugated plate assembly for replacing deformed corrugated plates, the ends of which are fixedly connected to the corrugated steel pipe gallery; The corrugated plate assembly includes four corrugated plates arranged in an array: a first corrugated plate (1) in the first quadrant, a second corrugated plate (2) in the second quadrant, a third corrugated plate (3) in the third quadrant, and a fourth corrugated plate (4) in the fourth quadrant. It also includes a cross-shaped integral connecting frame, which includes a connecting rod (5) between the first corrugated plate (1) and the second corrugated plate (2), a connecting rod (6) between the second corrugated plate (2) and the third corrugated plate (3), a connecting rod (7) between the third corrugated plate (3) and the fourth corrugated plate (4), and a connecting rod (8) between the fourth corrugated plate (4).

2. The replacement structure of the single corrugated plate of the underground corrugated pipe gallery according to claim 1, characterized in that: The connecting rod 1 (5), connecting rod 2 (6), connecting rod 3 (7) and connecting rod 4 (8) are all T-shaped structures composed of a horizontal plate (9) and a vertical plate (10) perpendicular to the horizontal plate (9). The vertical plate (10) has several evenly distributed connecting holes (11).

3. The replacement structure of a single corrugated sheet of an underground corrugated steel pipe gallery after deformation according to claim 2, characterized in that: The ends of the corrugated plates 1 (1), 2 (2), 3 (3), and 4 (4) away from the connecting frame are all fixed with an outer connecting plate (12) that is flush with and vertical to the end of the plate. The ends of the corrugated plates 1 (1), 2 (2), 3 (3), and 4 (4) near the connecting frame are fixed with an inner connecting plate (13) that is vertical and spaced a certain distance from the end of the plate. Each inner connecting plate (13) has an inner connecting hole (14) that corresponds to the connecting hole (11). Two inner connecting holes (14) in opposite positions and one connecting hole (11) are fixed with fastening bolts.

4. The replacement structure of a single corrugated sheet of an underground corrugated steel pipe gallery after deformation according to claim 2, characterized in that: The end of the first corrugated plate (1) near the first connecting rod (5) overlaps with the end of the second corrugated plate (2), and a waterproof adhesive strip is sandwiched at the overlapping position; the end of the second corrugated plate (2) near the second connecting rod (6) overlaps with the end of the third corrugated plate (3), and a waterproof adhesive strip is sandwiched at the overlapping position; the end of the third corrugated plate (3) near the third connecting rod (7) overlaps with the end of the fourth corrugated plate (4), and a waterproof adhesive strip is sandwiched at the overlapping position; the end of the fourth corrugated plate (4) near the first connecting rod (5) overlaps with the end of the first corrugated plate (1), and a waterproof adhesive strip is sandwiched at the overlapping position.

5. The replacement structure of a single corrugated sheet of an underground corrugated steel pipe gallery after deformation according to claim 3, characterized in that: Each external connecting plate (12) has several external connecting holes (15). Corrugated steel pipe gallery has fixing holes corresponding to the external connecting holes (15). Fastening bolts are fixed in the fixing holes and the matching external connecting holes (15).

6. The replacement structure of a single corrugated sheet of an underground corrugated steel pipe gallery after deformation according to claim 1, characterized in that: Grouting holes are drilled in the deformable corrugated plate, and mortar is injected between the deformable corrugated plate and the soil through the grouting holes.

7. The replacement structure of a single corrugated sheet of an underground corrugated steel pipe gallery after deformation according to claim 1, characterized in that: The corrugated plate assembly is provided with grouting holes and observation holes, through which mortar is injected between the corrugated plate assembly and the soil.

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