Pipe culvert structure, anti-seepage wall and construction method
By introducing a water stop ring into the culvert structure and adopting an integrated molding construction method, the problem of difficulty in controlling construction quality at the joint parts of the anti-seepage wall and the culvert structure is solved, and more efficient anti-seepage effect and engineering safety are achieved.
Patent Information
- Application Number
- CN202411912203.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-06-12
- Filing Date
- 2024-12-24
- Publication Date
- 2025-04-04
AI Technical Summary
In the existing anti-seepage wall pipe culvert structure and construction methods, the construction quality control of the joint parts is difficult and easy to seep, resulting in contact with seepage channels between the anti-seepage wall and the pipe culvert, affecting the water cut-off effect of the concrete anti-seepage wall and threatening the safety of the stability of the project's penetration.
Provide a pipe culvert structure with a water stop ring. The water stop ring is pierced into the concrete of the anti-seepage wall around the pipe body. Combined with the integrated molding construction method, the pipe culvert structure and the anti-seepage wall are poured in one go, avoiding high-pressure jet grouting and excavation of the wall buried culverts.
It effectively solves the problem of easy leakage at the joint parts of the anti-seepage wall and the culvert structure, improves the construction quality, reduces project volume and material waste, and improves the water cutoff effect of the anti-seepage wall and the safety of the project.
Smart Images
Figure CN119755422A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of anti-seepage walls, and in particular to a pipe culvert structure, an anti-seepage wall and a construction method. Background Art
[0002] At present, there are usually three types of anti-seepage wall culvert structures and construction methods: the first is to avoid and reserve underground culvert positions during the construction of the anti-seepage wall. After the anti-seepage wall is completed, high-pressure jet grouting is used to connect the anti-seepage walls on both sides of the underground culvert. In this method, the jet radius limits the applicable culvert span, and the construction quality control of the joint is difficult, and the depth of the anti-seepage wall is limited by the high-pressure jetting process; the second is to use oblique drilling or double-wheel milling (using the head to widen to both sides to cut the slots under the culvert) on both sides of the underground culvert for anti-seepage wall construction, and then pour the wall concrete. In this method, the soil at the joint is difficult to clean, and the construction quality is difficult to meet the anti-seepage requirements. High-pressure jet grouting is required to reinforce the joint; the third is to first construct the anti-seepage wall, then dig up the wall to bury the culvert, and pour the wall concrete to restore the wall. The construction process is simple, the joint is the joint of the new and old walls, and the anti-seepage capacity is relatively weak, and digging and re-constructing after the wall construction is completed causes a waste of engineering work.
[0003] The above-mentioned commonly used anti-seepage wall culvert structure and construction method are difficult to construct, and there are generally weak anti-seepage links in the joint parts, which can easily form contact seepage channels between the anti-seepage wall and the culvert, affecting the anti-seepage and water interception effect of the concrete anti-seepage wall and threatening the safety of the engineering seepage stability. Summary of the invention
[0004] The purpose of this application is to overcome the problems of difficult construction quality control and easy penetration of the joint parts existing in the prior art. In the first part, a pipe culvert structure is provided. The pipe culvert structure is provided with a pipe body with a water stop ring. The water stop ring is inserted into the concrete of the anti-seepage wall around the pipe body, which effectively solves the problem of easy leakage at the joint part of the anti-seepage wall and the pipe culvert structure, and avoids the weak link of anti-seepage;
[0005] The second part provides an anti-seepage wall, a wall body of the anti-seepage wall and a culvert structure.
[0006] The third part provides a construction method, in which the pipe culvert structure and the wall of the anti-seepage wall are cast and constructed in one time, with good integrity. There is no need to dig up the wall to bury the pipe culvert and use high-pressure jet grouting. The construction is simple and there is no waste of work.
[0007] In order to achieve the above objectives, in a first aspect, the present application provides a pipe culvert structure, including a pipe body, which is hollow inside and open at both ends, a water stop ring is provided on the pipe body, and connecting flanges for connecting other pipes are provided at both ends of the pipe body.
[0008] In some embodiments, a rubber flexible joint is provided on the connecting flange.
[0009] In a second aspect, the present application provides an anti-seepage wall, including a wall body combined with the above-mentioned culvert structure, and the pipe body is arranged through the wall body.
[0010] In a third aspect, the present application provides a construction method for combining a pipe culvert structure with an anti-seepage wall, comprising the following steps:
[0011] S1. Grooving, filling or leveling the site to form an enclosed construction platform, processing and forming a casting trough on the construction platform, the width of the casting trough is less than the length of the pipe body;
[0012] S2. Widen the casting trough. Widen the top opening of the casting trough to form an expansion trough. The width of the expansion trough is equal to the length of the pipe body. The expansion trough is coaxial with the casting trough. The expansion trough extends to the expected placement position of the pipe culvert structure.
[0013] S3. Place the pipe culvert structure, sink the pipe culvert structure into the casting trough and follow the expansion trough to the expected placement position;
[0014] S4. Cast the wall of the anti-seepage wall at the lower section of the culvert structure, pour concrete into the casting trough, and vibrate the periphery of the culvert structure;
[0015] S5, testing the wall strength. If the wall strength is less than 70%, repeat step S4. If the wall strength reaches 70%, dig grooves on both sides of the wall to test the wall's anti-seepage performance.
[0016] S6, extend the pipe culvert structure, pour the concrete pipe seat at the bottom of the steel pipe, connect the external steel pipe to the extended pipe culvert structure through the connecting flange at both ends of the pipe body, and wrap the surrounding with cement soil;
[0017] S7. Process the wall of the anti-seepage wall above the culvert structure, and backfill and raise the cofferdam after the culvert structure is laid.
[0018] In some embodiments, in step S1, a grab bucket method is used in conjunction with a rotary drilling rig to form holes and grooves.
[0019] In some embodiments, in step S3, the culvert structure is positioned by a steel reinforcement skeleton.
[0020] In some embodiments, in step S3, the openings at both ends of the tube body are closed, and when performing step S6, the openings at both ends of the tube body are reopened.
[0021] In some embodiments, in step S5, the wall strength is tested by a concrete strength rebound tester.
[0022] In some embodiments, in step S6, a rubber flexible joint is provided at the connection between the tube body and the external steel tube.
[0023] In some embodiments, in step S7, processing is performed by cast-in-place concrete or filling cement soil core wall.
[0024] Through the above technical scheme, the present application combines the culvert structure with the anti-seepage wall through an integrated molding method, which can be widely used in the connection between the anti-seepage wall of ordinary concrete, asphalt concrete, plastic concrete and other materials and the underground culvert structure. It can improve the problems of difficult construction quality control and easy leakage at the joint part in the traditional method, and at the same time can reduce the amount of engineering and reduce the waste of building materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is a structural schematic diagram of a pipe culvert structure in an embodiment of the present application;
[0026] Figure 2 It is a structural schematic diagram of the anti-seepage wall in an embodiment of the present application;
[0027] Figure 3 is a flow chart of the construction method in the embodiment of the present application;
[0028] Figure 4 is a schematic diagram after step S1 is completed;
[0029] Figure 5 is a schematic diagram after step S2 is completed;
[0030] Figure 6 is a schematic diagram after step S3 is completed;
[0031] Figure 7 is a schematic diagram after step S4 is completed;
[0032] Figure 8 is a schematic diagram after step S6 is completed;
[0033] Fig. 9 This is a schematic diagram after step S7 is completed.
[0034] Description of Reference Numerals
[0035] 1. Pipe body; 2. Water stop ring; 3. Connecting flange; 4. Rubber flexible joint; 5. Wall; 6. Construction platform; 7. Casting trough; 8. Expansion trough; 9. External steel pipe. DETAILED DESCRIPTION
[0036] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.
[0037] In this application, unless otherwise stated, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0038] First, refer to Figure 1 The present application provides a pipe culvert structure, including a pipe body 1, which is hollow inside and open at both ends. A water stop ring 2 is sleeved on the pipe body 1, and connecting flanges 3 for connecting other pipes are provided at both ends of the pipe body 1.
[0039] In the present application, the pipe culvert structure includes a pipe body 1, which is a long straight pipe. The pipe body 1 is hollow inside and open at both ends. A water stop ring 2 is sleeved in the middle of the pipe body 1. The water stop ring 2 is coaxial with the pipe body 1. When the pipe culvert structure is combined with the anti-seepage wall, the water stop ring 2 penetrates into the concrete of the anti-seepage wall around the pipe culvert, thereby closely fitting the joint between the pipe culvert and the anti-seepage wall, effectively solving the problem of easy leakage at the joint between the anti-seepage wall and the pipe culvert structure, and avoiding the weak link of anti-seepage. The openings at both ends of the pipe body 1 are sleeved with connecting flanges 3, which are used to connect other pipelines quickly and stably.
[0040] Reference Figure 1 In some embodiments, a rubber flexible joint 4 is provided on the connecting flange 3 .
[0041] In one embodiment of the present application, a rubber flexible joint 4 is placed on the connecting flange 3. The rubber flexible joint 4 has the ability to expand and contract and shear deformation, has a strong ability to adapt to deformation, can accommodate other pipes during connection, and has good connection performance. At the same time, the rubber flexible joint 4 has good sealing performance, which improves the sealing performance in the connected state.
[0042] Second, refer to Figure 2 The present application provides an anti-seepage wall, including a wall body 5 combined with the above-mentioned culvert structure, and a pipe body 1 is arranged through the wall body 5.
[0043] In one embodiment of the present application, the anti-seepage wall includes a wall body 5 , the width of the wall body 5 is smaller than the length of the tube body 1 , and when the wall body 5 and the tube body 1 are in a combined state, the tube body 1 is placed horizontally and penetrates the wall body 5 .
[0044] Thirdly, refer to Figure 3-Figure 9 The present application provides a construction method for combining the above-mentioned pipe culvert structure with the above-mentioned anti-seepage wall, comprising the following steps:
[0045] S1, forming a trench, filling or leveling the site to form an enclosed construction platform 6, and processing a casting trench 7 on the construction platform 6, wherein the width of the casting trench 7 is less than the length of the pipe body 1;
[0046] First, a construction platform 6 is processed. This process can be completed by filling or leveling the site, which is specifically adjusted according to the height of the groundwater level in the construction site. Then, the water level in the culvert is lowered to raise the construction platform 6, and then a casting trough 7 is punched on the construction platform 6. The length direction of the casting trough 7 is set in the vertical direction, and the width of the casting trough 7 is the preset width of the wall 5 of the anti-seepage wall.
[0047] S2, widening the casting trough 7, widening the top opening of the casting trough 7 to form an expansion trough 8, the width of the expansion trough 8 is equal to the length of the pipe body 1, the expansion trough 8 is coaxial with the casting trough 7, and the expansion trough 8 extends to the expected placement position of the pipe culvert structure;
[0048] Because the length of the pipe body 1 of the pipe culvert structure is greater than the thickness of the wall 5, it is necessary to widen the width of the groove to facilitate the placement of the pipe culvert structure. The top opening of the casting groove 7 is widened outward to form an expansion groove 8, the width of the expansion groove 8 is equal to the length of the pipe body 1, the expansion groove 8 is coaxial with the casting groove 7, the length direction of the expansion groove 8 is consistent with the length direction of the casting groove 7, and the lower end of the expansion groove 8 extends to the expected connection position of the pipe culvert structure.
[0049] S3, placing the pipe culvert structure, sinking the pipe culvert structure into the casting trough 7 and reaching the expected placement position along the expansion trough 8;
[0050] The pipe culvert structure processed in advance is placed in the casting groove 7, so that the pipe culvert structure moves downward along the expansion groove 8 until the pipe culvert structure descends to the expected placement position.
[0051] S4, pouring the wall 5 of the anti-seepage wall at the lower section of the culvert structure, pouring concrete into the pouring trough 7, and vibrating the periphery of the culvert structure;
[0052] Concrete is poured into the pouring trough 7 to form the wall 5 of the anti-seepage wall in the lower section of the culvert structure. During the pouring process, the periphery of the culvert structure needs to be vibrated. A vibrator is placed around the culvert structure to increase the strength through vibration to ensure the bonding quality between the culvert structure and the wall 5 of the anti-seepage wall.
[0053] S5, testing the strength of the wall 5. If the strength of the wall 5 is less than 70%, repeat step S4. If the strength of the wall 5 reaches 70%, dig grooves on both sides of the wall 5 to test the anti-seepage performance of the wall 5.
[0054] After a period of vibration operation, the strength of the wall 5 is tested. The testing method can be one of the rebound method, ultrasonic method, ultrasonic rebound combined method, radar method, etc. After the strength of the wall 5 reaches 70%, the grooves on both sides of the wall 5 are dug to check the integrity of the wall 5 and test the anti-seepage performance of the wall 5.
[0055] S6, extend the pipe culvert structure, pour the concrete pipe seat at the bottom of the steel pipe, connect the external steel pipe 9 at both ends of the pipe body 1 through the connecting flange 3 to extend the pipe culvert structure, and wrap the surrounding area with cement soil;
[0056] After completing the inspection of the wall 5, cast the concrete pipe seat at the bottom of the steel pipe, and connect the external steel pipe 9 through the connecting flanges 3 at both ends of the pipe body 1, so as to extend the entire culvert structure. After the connection is completed, wrap the surrounding area with cement soil to complete the laying of the culvert structure.
[0057] S7. Process the wall 5 of the upper section of the anti-seepage wall of the pipe culvert structure, and backfill and raise the cofferdam after the laying of the pipe culvert structure is completed.
[0058] After the laying of the pipe culvert structure is completed, the casting trough 7 is backfilled and the cofferdam is raised, that is, the wall body 5 of the upper section of the anti-seepage wall of the pipe culvert structure is processed to complete all the construction operations.
[0059] Reference Figure 4 In some embodiments, in step S1, a grab bucket method is used with a rotary drilling rig to form a hole and a groove.
[0060] In the process of slotting the casting slot 7, the main hole is first drilled by a rotary drilling rig, and then the auxiliary hole is dug with a grab bucket to form a slot hole. Two drills and one grab, three drills and two grabs, and four drills and three grabs can be used to form slot holes of different lengths. This method can give full play to the advantages of the two machines: the rotary drilling rig has a strong rock drilling ability and can drill into different strata. The main hole is drilled first to open the way for the grab bucket: the grab bucket has a high efficiency in grabbing the auxiliary hole, and the hole wall formed is relatively flat. When the grab bucket encounters hard strata during the construction of the auxiliary hole, it can be replaced with a rotary drilling rig or heavy chiseling at any time. This method is generally more efficient than using a rotary drilling rig alone to form slots, and is also more applicable to strata. In addition, during the slotting process, the guiding effect of the main hole can effectively prevent the grab bucket from deflecting when making holes, thereby improving the stability of the slotting.
[0061] Reference Figure 6 In some embodiments, in step S3, the culvert structure is positioned by a steel reinforcement skeleton.
[0062] The culvert structure is determined by positioning the steel frame, which is convenient and practical.
[0063] Reference Figure 6 and Figure 8In some embodiments, in step S3, the openings at both ends of the tube body 1 are closed, and when performing step S6, the openings at both ends of the tube body 1 are reopened.
[0064] In the subsequent construction steps, it is necessary to pour concrete into the casting trough 7 and dig grooves on both sides of the cast wall 5. Therefore, when placing the culvert structure, the openings at both ends of the pipe body 1 are temporarily blocked to prevent concrete or sand from mixing into the pipe body 1 and affecting the subsequent circulation of the pipe body 1. When preparing to connect the external pipe, the two ends of the pipe body 1 are reopened.
[0065] In some embodiments, in step S5, the strength of the wall 5 is tested by a concrete strength rebound tester.
[0066] When testing the strength of the wall 5 , it is relatively simple and convenient to use a concrete strength rebound tester to measure the rebound value of the surface of the wall 5 to evaluate the strength of the concrete.
[0067] Reference Figure 8 In some embodiments, in step S6, a rubber flexible joint 4 is provided at the connection between the tube body 1 and the external steel tube 9.
[0068] During connection, some positions deform greatly, and rubber flexible joints 4 are added to the positions where the foundation deforms greatly to adapt to the deformation and improve the stability of the connection.
[0069] Reference Fig. 9 In some embodiments, in step S7, the processing is performed by casting in situ concrete or filling cement soil core wall.
[0070] A process of combining a pipe culvert structure with an anti-seepage wall using the construction method of the present application is as follows: Figure 3As shown, first, a construction platform 6 is built according to the groundwater level of the construction site, and a casting trough 7 is generated by using a grab bucket method with a rotary drilling rig to make holes and grooves. The length direction of the casting trough 7 is set in the vertical direction, and the width of the casting trough 7 is the preset width of the wall 5 of the anti-seepage wall. Then, the top opening of the casting trough 7 is widened outward to form an expansion trough 8. The width of the expansion trough 8 is equal to the length of the pipe body 1. The expansion trough 8 is coaxial with the casting trough 7. The length direction of the expansion trough 8 is consistent with the length direction of the casting trough 7. The lower end of the expansion trough 8 extends to the expected combination position of the culvert structure and the wall 5. The openings at both ends of the pipe body 1 of the culvert structure are blocked, and the culvert structure processed in advance is placed in the casting trough 7, and the steel frame is used for positioning, so that the culvert structure moves downward along the expansion trough 8 until the culvert structure drops to the expected placement position. Concrete is poured into the casting trough 7 to form the wall 5 of the anti-seepage wall of the lower section of the culvert structure. During the pouring process, a vibrator is placed around the culvert structure. After a period of vibration, the concrete strength is evaluated by measuring the rebound value of the wall 5 surface with a concrete strength rebound tester. After the strength of the wall 5 reaches 70%, the grooves on both sides of the wall 5 are dug to check the integrity of the wall 5 and test the anti-seepage performance of the wall 5. After the wall 5 is tested, the concrete pipe seat at the bottom of the steel pipe is poured, and the openings at both ends of the pipe body 1 of the culvert structure are dug again, and the rubber flexible joints 4 are connected at both ends of the pipe body 1, and the external steel pipe 9 is connected through the flanges 3 at both ends of the pipe body 1. After the connection is completed, the surrounding area is wrapped with cement soil to complete the laying of the culvert structure. Then, the casting trough 7 is backfilled and the cofferdam is raised to complete all construction operations.
[0071] The construction method disclosed in the present application adopts an integrated molding method when combining the culvert structure and the anti-seepage wall, and can be widely used in the connection between the anti-seepage wall of ordinary concrete, asphalt concrete, plastic concrete and other materials and the underground culvert structure, which can improve the problems of difficult construction quality control and easy leakage at the joint part in the traditional method, and at the same time can reduce the amount of engineering and the waste of building materials. In addition, by designing the pipe body 1 with a water stop ring 2, the easy leakage problem at the joint part of the anti-seepage wall and the culvert structure is effectively solved, avoiding the weak link of anti-seepage.
[0072] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.
[0073] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.
Claims
1. A pipe culvert structure, characterized in that: The invention comprises a pipe body (1), wherein the interior of the pipe body (1) is hollow and both ends are open, a water stop ring (2) is sleeved on the pipe body (1), and both ends of the pipe body (1) are provided with connection flanges (3) for connecting to other pipelines.
2. The pipe culvert structure according to claim 1, characterized in that: The connecting flange (3) is provided with a rubber flexible joint (4).
3. An anti-seepage wall, characterized in that: It comprises a wall (5) combined with the pipe culvert structure according to claim 1 or 2, wherein the pipe body (1) is arranged to penetrate the wall (5).
4. A construction method, characterized in that: The method for combining the pipe culvert structure with the cut-off wall comprises the following steps: S1, forming a trench, filling or leveling the site to form an enclosed construction platform (6), processing and forming a casting trench (7) on the construction platform (6), wherein the width of the casting trench (7) is smaller than the length of the pipe body (1); S2, widening the casting trough (7), widening the top opening of the casting trough (7) to form an expansion trough (8), the width of the expansion trough (8) is equal to the length of the pipe body (1), the expansion trough (8) is coaxial with the casting trough (7), and the expansion trough (8) extends in a straight line from the casting trough (7) to the expected placement position of the pipe culvert structure; S3, placing the pipe culvert structure, sinking the pipe culvert structure into the casting trough (7) and along the expansion trough (8) to the expected placement position; S4, pouring the wall body (5) of the anti-seepage wall at the lower section of the pipe culvert structure, pouring concrete into the pouring trough (7), and vibrating the periphery of the pipe culvert structure; S5, testing the strength of the wall (5); if the strength of the wall (5) is less than 70%, repeating step S4; if the strength of the wall (5) reaches 70%, digging grooves on both sides of the wall (5) to test the anti-seepage performance of the wall (5); S6, extending the pipe culvert structure, pouring a concrete pipe seat at the bottom of the steel pipe, connecting the external steel pipe (9) at both ends of the pipe body (1) through the connecting flange (3) to extend the pipe culvert structure, and wrapping the periphery with cement soil; S7. Processing the wall body (5) of the upper section of the anti-seepage wall of the pipe culvert structure, and backfilling and raising the cofferdam after the laying of the pipe culvert structure is completed.
5. The construction method according to claim 4, characterized in that: In step S1, a grab bucket method is used in conjunction with a rotary drilling rig to form holes and grooves.
6. The construction method according to claim 4, characterized in that: In step S3, the culvert structure is positioned by using a steel reinforcement frame.
7. The construction method according to claim 4, characterized in that: In step S3, the openings at both ends of the tube body (1) are closed, and when performing step S6, the openings at both ends of the tube body (1) are reopened.
8. The construction method according to claim 4, characterized in that: In step S5, the strength of the wall (5) is tested by using a concrete strength rebound tester.
9. The construction method according to claim 4, characterized in that: In step S6, a rubber flexible joint (4) is provided at the connection between the pipe body (1) and the external steel pipe (9).
10. The construction method according to claim 4, characterized in that: In step S7, processing is performed by using cast-in-place concrete or filling cement soil core wall.