Pipeline butt joint gap filling mortar filling method and filling device

Abstract

The present application relates to pipeline butt joint installation technical field, especially pipeline butt joint interface caulking mortar filling method and filling device, a kind of pipeline butt joint interface caulking mortar filling method includes: S1, a circle of cable is laid in pipeline gap;S2, set up bandage in the periphery of pipeline gap, set up connecting rope in the periphery of bandage, connecting rope is pulled tight by tightener, form grouting port and grouting space, cable two ends extend grouting port;S3, grouting port is filled with caulking mortar into grouting space;S4, reciprocatingly move along pipeline gap by pulling cable, until grouting is completed;S5, pull out cable, carry out mortar maintenance;It can be moved reciprocatingly by pulling cable, eliminate the bubble, interstice in mortar, can improve mortar dense efficiency and effect.A kind of pipeline butt joint interface caulking mortar filling device includes bandage, connecting rope, tightener and cable, simple structure, use effect is better, realizes the structure optimization of caulking mortar filling device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline butt joint installation, in particular to a pipeline butt joint interface crack pouring mortar filling method and filling device. BACKGROUND

[0002] PCCP pipe is a kind of pipe core composed of concrete and steel cylinder with socket, high-strength prestressed steel wire is wound outside, and protective layer mortar is sprayed on the outside to form a composite pipe material, large-diameter PCCP pipe is often used as water conveying pipe, when installing, the inner joint and outer joint formed by butt joint of multiple PCCP pipes need to be treated respectively to prevent water leakage at the butt joint gap of the pipeline.

[0003] Chinese utility model patent CN222122567U provides a pipeline outer joint treatment mechanism for auxiliary grouting sealing of large-diameter PCCP pipeline interface ring joint outer joint, a closed-cell foam board with elasticity is arranged around the pipeline interface ring joint wall, the outer wall of the closed-cell foam board is tightly covered on the outer peripheral framework, the outer peripheral framework is composed of bamboo pieces in series, a grouting inlet is pre-set, and two groups of line tighteners are arranged around and fastened.

[0004] However, due to the small gap, the conventional vibrating equipment cannot be inserted, and the existing outer joint treatment mechanism cannot realize the vibrating and compacting treatment of the mortar, only mortar with excellent fluidity can be used, which increases the preparation cost of the mortar, and the forming compactness of the crack pouring mortar cannot be ensured, which affects the sealing service life of the crack mortar, at the same time, the installation efficiency of the outer peripheral framework formed by the closed-cell foam board and the bamboo pieces in series is low, the positions of the adjacent bamboo pieces are easy to move during the locking process, and uniform arrangement cannot be ensured, resulting in inconsistent ring joint locking effect, when the closed-cell foam board deforms, the surface quality of the crack pouring mortar is poor, and the subsequent processing time is increased. SUMMARY

[0005] The present application aims to overcome the deficiencies in the prior art that the existing pipeline outer joint treatment mechanism cannot satisfy the vibrating and compacting treatment of the mortar, affects the sealing service life of the crack mortar, and the structure needs to be improved, and provides a pipeline butt joint interface crack pouring mortar filling method and filling device.

[0006] In a first aspect, the present application provides a pipeline butt joint interface crack pouring mortar filling method, comprising the following steps:

[0007] S1, a cable is laid in the pipeline gap;

[0008] S2, a tape is arranged around the pipeline gap, a connecting rope is arranged around the tape, the connecting rope is pulled tight by a line tightener, a grouting port and a grouting space are formed, and the two ends of the cable extend out of the grouting port;

[0009] S3, filling the grouting space with grouting mortar through the grouting opening;

[0010] S4, pulling the cable to reciprocate along the pipeline gap until grouting is completed;

[0011] S5, pulling out the cable and curing the grouting mortar.

[0012] Preferably, the filling of the grouting mortar and the pulling of the cable are carried out synchronously, and the filling of the grouting mortar and the pulling of the cable are carried out simultaneously with the knocking of the wrapping.

[0013] Preferably, the wrapping outer wall is knocked by a rubber hammer, and a cushion is arranged at the knocking position.

[0014] Preferably, the cable is pulled out when the grouting liquid surface is 1-5 cm away from the grouting opening, the grouting opening is filled with sealing grouting, and the sealing grouting is smoothed, and the fluidity of the sealing grouting is less than that of the grouting mortar.

[0015] In a second aspect, the present application provides a pipeline butt joint grouting mortar filling device for a pipeline butt joint grouting mortar filling method as described above, comprising a wrapping, a connecting rope, a line tightener and a cable, the wrapping length is less than the circumference of the pipeline, and the wrapping is arranged around the pipeline gap to form a grouting opening; the connecting rope is arranged around the wrapping and connected with the line tightener; and the cable length is greater than the circumference of the pipeline.

[0016] Preferably, the wrapping comprises a flexible layer and a rigid layer, the flexible layer is connected with the rigid layer, the rigid layer is provided with at least two rope passing channels matched with the connecting rope, and the at least two rope passing channels are symmetrically distributed on both sides of the pipeline gap. By using the wrapping connected by the flexible layer and the rigid layer, the structural integrity is high, the structural stability can be maintained during locking, and the surface quality of the formed grouting mortar can be improved.

[0017] Preferably, the connecting rope comprises more than two twisted steel wire ropes, and the cable comprises a double twisted or single steel wire rope. By using the multi-twisted steel wire rope as the connecting rope, the structural strength is good, the stable arrangement of the wrapping can be realized, by using the double twisted or single steel wire rope as the cable, the cable structure is simple, the grouting space is not occupied too much, and the flow of the grouting mortar can be guided to output bubbles and voids.

[0018] Preferably, the wrapping is provided with a cable passing hole at both ends, and the cable passes through the cable passing hole and is connected with the traction mechanism.

[0019] Preferably, the traction mechanism comprises a traction ring, the size of the traction ring is greater than the size of the cable passing hole, and at least one end of the cable is detachably connected with the traction ring.

[0020] Preferably, the traction mechanism comprises a reel mechanism arranged across the pipeline gap, and the cable is wound on the reel mechanism.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] 1. The present application provides a pipeline butt joint interface pouring crack mortar filling method, which can eliminate the bubbles and voids in the mortar by pulling the cable back and forth during the pipeline gap filling process, thereby improving the compactness of the mortar.

[0023] 2. The present application provides a pipeline butt joint interface pouring crack mortar filling method, which further accelerates the elimination of bubbles and voids in the mortar by knocking the wrapping and vibrating at the same time as pouring the mortar and pulling the cable, thereby improving the compactness efficiency and effect of the mortar.

[0024] 3. The present application provides a pipeline butt joint interface pouring crack mortar filling device, which can accelerate the elimination of bubbles and voids in the mortar while filling the mortar by integrating the cable, has a simple structure, good use effect, and realizes the structural optimization of the pouring crack mortar filling device. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A flowchart of a pipeline butt joint interface pouring crack mortar filling method according to Example 1.

[0026] Figure 2 A use state diagram of a pipeline butt joint interface pouring crack mortar filling device according to Example 2 Figure One .

[0027] Figure 3 A use state diagram of a pipeline butt joint interface pouring crack mortar filling device according to Example 2 Figure Two .

[0028] Figure 4 A cross-sectional structure diagram of the wrapping according to Example 2.

[0029] Figure 5 A structure diagram of the reel mechanism according to Example 2.

[0030] Markings in the figure:

[0031] 1 - pipeline gap, 2 - cable, 3 - wrapping, 31 - flexible layer, 32 - rigid layer, 33 - rope passing channel, 34 - cable passing hole, 4 - connecting rope, 5 - line tightener, 6 - grouting port, 7 - traction ring, 8 - reel mechanism. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below with reference to specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter of the present application is limited to the following examples, and any technology implemented based on the content of the present application falls within the scope of the present application.

[0033] In the description of specific embodiments of the present application, the terms of orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer" and the like are expressed based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product / device / apparatus of the present application is usually used. These terms of orientation or positional relationship are only for the convenience of describing the present application or simplifying the description in specific embodiments, facilitating the quick understanding of the scheme by the skilled person, and therefore cannot be understood as indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship, and thus cannot be understood as limiting the present application.

[0034] In addition, the terms "horizontal", "vertical", "overhanging", "parallel", "coaxial" and the like do not mean that the corresponding device / component / element must be absolutely horizontal or vertical or overhanging or parallel or coaxial, but can be slightly inclined or deviated, as long as it does not affect the normal function of the related component. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined; "coaxial" means that two components are arranged as coaxial as possible, and move in the same or approximately coaxial manner when the relative position changes. Alternatively, it can be simplified to understand that the corresponding device / component / element is arranged in the "horizontal", "vertical", "overhanging", "parallel", "coaxial" direction, and can have an error / deviation of ±10% relative to the corresponding direction, more preferably an error / deviation of ±8% or less, more preferably an error / deviation of ±6% or less, more preferably an error / deviation of ±5% or less, and more preferably an error / deviation of ±4% or less. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present application.

[0035] In addition, the terms "first", "second", "third" and the like in the description of the embodiments of the present application are only used to distinguish the same or similar components, and should not be understood as emphasizing or implying the relative importance of the specific components.

[0036] In addition, in the description of the embodiments of the present application, "several", "a plurality of", "several" represent at least 2. It can be 2, 3, 4, 5, 6, 7, 8, 9, etc. in any case, and even more than 9.

[0037] Furthermore, in the description of the technical solutions of the present application, unless otherwise explicitly specified / limited / limited, the terms "arrangement", "installation", "connection", "connection", "provided with", "laid", "arrangement" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, such as welding, riveting, bolting, screwing and other commonly used connection means in the art. The connection can be mechanical connection, electrical connection or communication connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication between two elements.

[0038] Embodiment 1

[0039] As Figures 1-4 shown, the pipe butt joint interface crack mortar filling method of the present embodiment comprises the following steps:

[0040] S1, a cable 2 is laid in the pipe gap 1;

[0041] S2, a tape 3 is provided around the pipe gap 1, a connecting rope 4 is provided around the tape 3, the connecting rope 4 is pulled tight by a line tightener 5, a grouting port 6 and a grouting space are formed, and the two ends of the cable 2 extend out of the grouting port 6;

[0042] S3, grouting mortar is filled into the grouting space through the grouting port 6;

[0043] S4, the cable 2 is pulled back and forth along the pipe gap 1 until grouting is completed;

[0044] S5, the cable 2 is pulled out and the mortar is maintained.

[0045] S1 is used to realize the laying of the cable 2.

[0046] In an optional embodiment, the cable 2 is preferably suspended and laid along the outer edge of the pipe gap 1, and the two ends of the cable 2 are located at the top of the pipe. Temporary pressure can be applied by a weight to avoid displacement, which can provide a wider range of driving for the grouting mortar in the pipe gap 1 during the subsequent pulling process, and improve the compaction effect of the grouting mortar.

[0047] S2 is used to form the grouting port 6 and the grouting space.

[0048] In an optional embodiment, the side of the tape 3 close to the pipe can be coated with a release agent, the tape 3 is arranged around the outer wall of the pipe, the grouting port 6 is formed at the center position of the top of the pipe through the spacing between the two ends of the tape 3, and the tape 3 is pulled tight by the connecting rope 4 and the line tightener 5 arranged around the pipe.

[0049] In an optional embodiment, the line tightener 5 can be a ratchet type line tightener 5, a hanging ring can be arranged on the bag belt 3 to adapt to the hook of the ratchet type line tightener 5, the line tightener 5 is fixed to the outer wall of one end of the bag belt 3, and the connecting rope 4 is pulled tight through the ratchet type line tightener 5 to realize the compression of the bag belt 3.

[0050] S3 and S4 are the filling processes of the crack sealing mortar.

[0051] In one or several embodiments, the filling of the crack sealing mortar and the pulling of the cable 2 can be performed simultaneously, and the bag belt 3 can be knocked and vibrated at the same time as the filling of the crack sealing mortar and the pulling of the cable 2.

[0052] In an optional embodiment, the pulling of the cable 2 can be performed during the filling of the crack sealing mortar, and the pulling process and the filling process are performed alternately, so that the operator can perform the two operations alternately to improve the operation efficiency.

[0053] In an optional embodiment, the reciprocating movement of the cable 2 can be manually holding the two ends of the cable 2 and manually pulling the cable 2 left and right to move, or the pulling of the cable 2 can be realized by a reciprocating power mechanism.

[0054] In an optional embodiment, the bag belt 3 can be continuously knocked and vibrated by the operator at the same time as the filling of the crack sealing mortar to improve the vibration and compaction effect.

[0055] In an optional embodiment, a rubber hammer can be used to knock the outer wall of the bag belt 3, and a pad is arranged at the knocking position. The rubber hammer can reduce the damage to the bag belt 3, and the appropriate knocking force can be provided to realize the vibration and compaction effect of the crack sealing mortar in the bag belt 3.

[0056] In an optional embodiment, the pad can be a steel block or a steel plate with a hardness greater than that of the bag belt 3. The pad is abutted on the surface of the bag belt 3, and the vibration is transmitted by knocking the pad, so that the bag belt 3 is not directly knocked to avoid deformation and damage, and the internal mortar forming quality is affected.

[0057] In an optional embodiment, the operator can adjust the position of the pad according to the liquid level of the filled crack sealing mortar, so that the vibration position is below the liquid level of the crack sealing mortar and can always maintain a distance of 5-10 cm. The pad gradually rises from the bottom of the pipe to near the top of the pipe along with the liquid level, and the pad can be moved and knocked 1-2 times from bottom to top after the grouting is completed, so that the air holes and voids in the crack sealing mortar can be fully removed, the sealing effect of the crack sealing mortar is maximized, and the sealing quality is ensured.

[0058] S5 is the operation process after the grouting is completed, which is used for taking out the cable 2 to fill and seal the crack sealing mortar.

[0059] In an optional embodiment, the cable 2 can be taken out when the distance between the mortar surface and the grouting opening 6 is 1-5 cm, and the grouting opening 6 is filled with the sealing mortar after the cable 2 is taken out, and the sealing mortar is smoothed. The flowability of the sealing mortar is less than that of the crack sealing mortar.

[0060] In an optional embodiment, the sealing mortar can use the same M30 mortar as the crack sealing mortar, which has good flowability, but the flowability of the sealing mortar is less than that of the crack sealing mortar, which can block the grouting opening 6.

[0061] In an optional embodiment, the mortar can be maintained by laying a plastic film on the grouting opening 6 or by regular watering maintenance.

[0062] The crack sealing mortar filling method of the pipe butt joint in this embodiment can eliminate the bubbles and voids in the mortar by pulling and moving the cable 2 back and forth during the filling of the crack sealing mortar in the pipe gap 1, which can improve the compactness of the mortar. At the same time, the elimination of bubbles and voids in the mortar can be further accelerated by knocking the wrapping tape 3 while filling the mortar and pulling the cable 2, which can improve the efficiency and effect of the compactness of the mortar.

[0063] Embodiment 2

[0064] The crack sealing mortar filling device of the pipe butt joint in this embodiment is used for the crack sealing mortar filling method of the pipe butt joint in Embodiment 1, which includes the wrapping tape 3, the connecting rope 4, the line tightener 5, and the cable 2.

[0065] The wrapping tape 3 is used to form the grouting opening 6 and the grouting space on the pipe, the connecting rope 4 is used to surround the wrapping tape 3, the line tightener 5 is used to tighten the connecting rope 4 to realize the stable setting of the wrapping tape 3 on the pipe, and the cable 2 is used in combination with the wrapping tape 3 to make the crack sealing mortar in the grouting space compact.

[0066] In an optional embodiment, the length of the wrapping tape 3 is less than the circumference of the pipe, and the grouting opening 6 can be formed by the spacing between the two end faces of the wrapping tape 3 when the wrapping tape 3 surrounds the pipe gap 1.

[0067] In an optional embodiment, the connecting rope 4 surrounds the wrapping tape 3 and is connected with the line tightener 5, and the two connecting ropes 4 are arranged symmetrically on both sides of the pipe gap 1 in parallel with the pipe gap 1 to form the grouting space between the two connecting ropes 4.

[0068] In an optional embodiment, the length of the cable 2 is 1-2 m longer than the circumference of the pipe, so that the two ends of the cable 2 can extend out of the grouting opening 6 by a sufficient length. The length of the cable 2 extending out of the grouting opening 6 limits the moving distance of the cable 2 along the pipe gap 1, so as to realize the artificial control of the crack sealing mortar compacting process.

[0069] In an optional embodiment, the wrapping tape 3 can comprise a flexible layer 31 and a rigid layer 32, the flexible layer 31 being connected with the rigid layer 32, the rigid layer 32 being provided with at least two rope passing channels 33 adapted to the connecting rope 4, the at least two rope passing channels 33 being symmetrically distributed on both sides of the pipeline gap 1. By adopting the wrapping tape 3 connected by the flexible layer 31 and the rigid layer 32, the overall structure has high integrity, can maintain structural stability during locking, and is conducive to improving the surface quality of the formed crack sealing mortar.

[0070] In an optional embodiment, the rope passing channel 33 can be formed by connecting a steel sheet with a bending portion on the surface of the flexible layer 31, so as to stably limit the relative position of the connecting rope 4 and the wrapping tape 3, and improve the overall degree of the connecting rope 4 and the wrapping tape 3 and the like, and improve the installation efficiency of the device.

[0071] In an optional embodiment, the flexible layer 31 can be a polyvinyl chloride coiled material, a carbon fiber cloth composite template and the like, which has a certain deformability and can adapt to the requirements of curved surface modeling or slight deformation. The rigid layer 32 can be a galvanized steel plate, a corrugated steel plate, a bending plywood and the like, which has a material hardness greater than that of the flexible layer 31. The rigid layer 32 and the flexible layer 31 are arranged in equal area and are attached to each other, so that the structural strength of the wrapping tape 3 increases from inside to outside. The rigid layer 32 can provide a stable compression effect on the flexible layer 31 and disperse the pressure of the connecting rope 4, so as to avoid damaging the flexible layer 31, and the flexible layer 31 can maintain the stable sealing of the grouting space.

[0072] In an optional embodiment, the connecting rope 4 can adopt a steel wire rope twisted by two or more strands, and the cable 2 can adopt a steel wire rope twisted by two strands or a single strand. By adopting the steel wire rope twisted by multiple strands as the connecting rope 4, the structural strength is good, and the stable setting of the wrapping tape 3 can be realized. By adopting the steel wire rope twisted by two strands or a single strand as the cable 2, the cable 2 has a simple structure and a small diameter, does not occupy too much grouting space, and can promote the flow of the crack sealing mortar to realize the guided output of bubbles and voids.

[0073] In one or more embodiments, as shown in Figure 3 The ends of the wrapping tape 3 can be provided with a cable passing hole 34, and the cable 2 can be connected to a traction mechanism after passing through the cable passing hole 34. This facilitates the reciprocating movement of the cable 2 along the pipeline gap 1 by the traction mechanism.

[0074] In an optional embodiment, the cable passing hole 34 can be a ring structure, a hole part or an additional hole structure arranged at the end face of the wrapping tape 3, so as to facilitate the connection of the cable 2 and the wrapping tape 3 through the cable passing hole 34, facilitate the overall installation of the device, and be conducive to improving the installation efficiency of the device.

[0075] In an optional embodiment, as shown in Figure 2As shown, the traction mechanism can be a traction ring 7, the traction ring 7 is larger than the size of the through-hole 34, and at least one end of the cable 2 is detachably connected with the traction ring 7, so as to facilitate the extraction of the cable 2 by detaching the cable 2 and the traction ring 7.

[0076] In an optional embodiment, as shown in the figure, Figure 5 As shown, the traction mechanism can also be a reel mechanism 8 arranged across the pipeline gap 1, and the cable 2 can be connected with the reel mechanism 8 in a loop shape, and the cable 2 is wound on the reel mechanism 8, and the reciprocating movement of the cable 2 is realized by driving the reel mechanism 8 to rotate forward and backward.

[0077] In an optional embodiment, the reel mechanism 8 can be arranged across the pipeline by a support structure, and can be moved along the pipeline axis after the current pipeline gap 1 is constructed, so as to realize the mechanical driving of the cable 2 and reduce the labor intensity of the workers.

[0078] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for filling pipe joints with grout, characterized in that, A grouting device for pipe joints is used, comprising a wrapping tape (3), a connecting rope (4), a tensioner (5), and a cable (2). The length of the wrapping tape (3) is less than the circumference of the pipe, and the wrapping tape (3) is placed around the pipe joint (1) to form a grouting port (6). The connecting rope (4) is placed around the wrapping tape (3) and connected to the tensioner (5). The length of the cable (2) is greater than the circumference of the pipe. The wrapping tape (3) includes a flexible layer (31) and a rigid layer (32). The flexible layer (31) is connected to the rigid layer (32), and the rigid layer (32) is connected to the flexible layer (31). 2) At least two rope-threading channels (33) adapted to the connecting rope (4) are provided. The at least two rope-threading channels (33) are symmetrically distributed on both sides of the pipe gap (1). The connecting rope (4) includes two or more strands of twisted steel wire rope. The cable (2) includes two strands of twisted steel wire rope. The strap (3) has rope-threading holes (34) at both ends. The cable (2) passes through the rope-threading holes (34) and is connected to the traction mechanism. The traction mechanism includes a reel mechanism (8) straddling the pipe gap (1). The cable (2) is wound on the reel mechanism (8). Includes the following steps: S1. Lay a loop of cable (2) in the pipe gap (1). The cable (2) is suspended along the outer edge of the pipe gap (1). The two ends of the cable (2) are located at the top of the pipe. It is temporarily pressed down by a heavy object to prevent displacement. It can make the cable (2) have an upward movement during the subsequent pulling process. S2. A wrapping tape (3) is installed around the pipe gap (1), and a connecting rope (4) is installed around the wrapping tape (3). The connecting rope (4) is tightened by the tensioner (5) to form a grouting port (6) and a grouting space. The two ends of the cable (2) extend out of the grouting port (6). S3. Fill the grouting space with grouting mortar through the grouting port (6); S4. Pull the cable (2) back and forth along the pipe gap (1) until the grouting is completed; fill the grouting mortar and pull the cable (2) simultaneously. At the same time as filling the grouting mortar and pulling the cable (2), tap the wrapping tape (3) to vibrate. Use a rubber hammer to tap the outer wall of the wrapping tape (3). Place a pad at the tapping position. The pad is a steel block or steel plate with a hardness greater than that of the wrapping tape (3). The pad gradually rises from the bottom of the pipe to near the top of the pipe following the liquid level, so that the vibration position is below the liquid level of the grouting mortar and can always maintain a distance of 5-10cm. After the grouting is completed, use the method of moving from bottom to top and tapping 1-2 times to remove the air holes and voids in the grouting mortar. S5. Pull out the cable (2) and perform mortar curing. When the mortar surface is 1-5cm away from the grouting port (6), take out the cable (2), fill the grouting port (6) with sealing mortar and smooth it. The fluidity of the sealing mortar is less than that of the grouting mortar.

2. The method for filling pipe joints with grout according to claim 1, characterized in that, The traction mechanism includes a traction ring (7), the size of which is larger than the size of the cable hole (34), and at least one end of the cable (2) is detachably connected to the traction ring (7).

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