Anti-seepage channel structure
By setting up crisscrossing expansion joints and reinforcement beams in the canal structure, the problem of cracks and leakage in traditional canals is solved, and higher durability and anti-seepage effect are achieved.
Patent Information
- Application Number
- CN202422031460.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-21
AI Technical Summary
Traditional canal structures are prone to cracks, fractures, misalignment and other phenomena under freeze-thawing, resulting in serious channel leakage and insufficient anti-seepage effect and durability.
An anti-seepage channel structure is designed, including a channel body set in a trapezoidal shape and a crisscrossing expansion joint, a reinforcement beam corresponding to the cross joint, and a casting and forming integrated with the channel body.
By increasing structural strength, avoid channel deformation caused by longitudinal seam settings, ensuring the durability and anti-seepage effect of the channel under freeze-thaw conditions.
Smart Images
Figure CN222990669U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water conservancy channels, and particularly relates to an anti-seepage channel structure. Background Art
[0002] In water conservancy, farmland water conservancy, ponds and various water conservancy facilities, it is necessary to control the water flow, and the water flow is mainly guided through water channels. The traditional water channel structures mainly include three forms: stone masonry, cast-in-place concrete, and precast concrete blocks. In the process of use, frost heaving damage will occur to varying degrees, and it is basically impossible to operate normally after long-term use. The traditional water channels use rigid materials, and there are problems such as insecure interfaces. Under the action of freeze-thaw, channel cracks, fractures, displacements and other phenomena are likely to occur, resulting in serious channel leakage.
[0003] The traditional channel anti-seepage lining structures mainly include earth material anti-seepage, brick and stone material anti-seepage, concrete lining anti-seepage, plastic film anti-seepage, etc. However, the anti-seepage effects of the first two structures are not good, and the durability of the plastic film anti-seepage is poor. Most use the concrete lining anti-seepage structure. In order to reduce the channel freeze-cracking phenomenon caused by freeze-thaw, the channel section is set as a trapezoidal structure, and expansion joints are set on the channel. However, the concrete lining anti-seepage structure mostly uses a relatively thick lining thickness to avoid easy channel freeze-thaw deformation, but this increases the construction cost. In addition, although expansion joints are set on the channel, too many expansion joints are likely to reduce the strength of the entire channel, and if the number of expansion joints is too small, it cannot play a role in preventing channel freeze-thaw deformation. Content of the Utility Model
[0004] In view of this, the utility model aims to propose an anti-seepage channel structure to ensure the durability and anti-seepage effect of the channel on the premise of ensuring the strength of the channel structure.
[0005] To achieve the above object, the technical solution of the utility model is realized as follows:
[0006] An anti-seepage channel structure includes a channel body arranged in a trapezoidal shape, and expansion joints arranged on the channel body;
[0007] The expansion joints include longitudinal joints arranged along the water flow direction and transverse joints perpendicular to the water flow direction;
[0008] A plurality of the transverse joints are arranged at intervals along the water flow direction; the longitudinal joints are connected to the transverse joints;
[0009] Reinforcing beams are further arranged on the channel body, the reinforcing beams are arranged along the extending direction of the transverse joints, the reinforcing beams are arranged in one-to-one correspondence with the transverse joints, and the reinforcing beams are integrally cast with the channel body.
[0010] Further, the channel body includes a toe section, side slope sections relatively connected to both sides of the toe section, and a shoulder section connected to the side slope sections away from the toe section;
[0011] The longitudinal joints are arranged in the toe section and the shoulder section; the extending direction of the transverse joints runs through the channel body;
[0012] The distance between two adjacent transverse joints is greater than the distance between two adjacent strengthening beams;
[0013] The strengthening beams extend and are arranged in the toe section and the side slope sections.
[0014] Further, the three longitudinal joints are respectively arranged at the center of the toe section and on both sides of the shoulder section.
[0015] Further, the slope of the side slope section is 1, and a transition section is arranged between the toe section and the side slope section.
[0016] Further, the longitudinal joint located at the strengthening beam penetrates along the thickness of the strengthening beam.
[0017] Further, along the water flow direction, the longitudinal section of the strengthening beam is an inverted trapezoidal structure, and the cross-section of the strengthening beam is a rectangle.
[0018] Further, the width range of the expansion joint is between 1.5 mm and 2.5 mm, and the ratio of the width of the strengthening beam to the width of the expansion joint is 6:1.
[0019] Further, the expansion joint is filled with a polyethylene closed-cell foam board and polysulfide sealant.
[0020] Further, the dimension range of the thickness t2 of the channel body is between 80 mm and 100 mm, and / or,
[0021] The dimension range of the thickness t1 of the strengthening beam is between 100 mm and 120 mm.
[0022] Further, the distance between two adjacent transverse joints is 3 m.
[0023] Compared with the prior art, the present utility model has the following advantages:
[0024] The anti-seepage channel structure described in the present utility model is provided with criss-cross expansion joints on the channel body, and strengthening beams corresponding one by one to the transverse joints are arranged on the channel body. Moreover, the strengthening beams and the channel body are integrally cast. By setting the strengthening beams, the structural strength of the anti-seepage channel can be increased in the direction perpendicular to the water flow, avoiding the deformation of the anti-seepage channel easily caused by the longitudinal joints. By setting the transverse joints and longitudinal joints criss-cross, the durability and anti-seepage effect of the channel can be ensured on the premise of ensuring the structural strength of the channel.
[0025] In addition, by respectively arranging the longitudinal joints at the toe section and the shoulder section of the slope, expansion joints can be arranged at both the bottom and the top of the channel body, which can increase the deformation requirements at different positions. Also, by arranging two strengthening beams between two adjacent transverse joints, that is, there is one strengthening beam on both sides of each transverse joint. Moreover, by extending the strengthening beams to the toe section and the slope section, the setting of the strengthening beams can strengthen the strength of the channel body in both the water flow direction and the direction perpendicular to the water flow. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:
[0027] Figure 1 is a top view schematic diagram of a part of the anti-seepage channel structure described in the embodiment of the present utility model;
[0028] Figure 2 is Figure 1 a cross-sectional view at A-A in
[0029] Figure 3 is a cross-sectional view of the expansion joint and the channel body described in the embodiment of the present utility model;
[0030] Figure 4 is Figure 1 a cross-sectional view at B-B in
[0031] Figure 5 is a cross-sectional view of the longitudinal section of the strengthening beam along the water flow direction described in the embodiment of the present utility model.
[0032] DESCRIPTION OF THE REFERENCE NUMERALS:
[0033] 1. Channel body; 2. Longitudinal joint; 3. Transverse joint; 4. Strengthening beam; 5. Polyethylene closed-cell foam board; 6. Polysulfide sealant;
[0034] 101. Toe section; 102. Slope section; 103. Shoulder section. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0035] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.
[0036] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "back", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0037] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.
[0038] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.
[0039] This embodiment relates to an anti-seepage channel structure, which includes a channel body 1 arranged in a trapezoidal shape, and expansion joints provided on the channel body 1. The expansion joints include longitudinal joints 2 arranged along the water flow direction, and transverse joints 3 perpendicular to the water flow direction. A plurality of transverse joints 3 are arranged at intervals along the water flow direction; the longitudinal joints 2 are connected to the transverse joints 3. A strengthening beam 4 is also provided on the channel body 1. The strengthening beam 4 is arranged along the extending direction of the transverse joints 3, and the strengthening beam 4 is arranged in one-to-one correspondence with the transverse joints 3. The strengthening beam 4 and the channel body 1 are integrally cast.
[0040] The anti-seepage channel structure of this embodiment, by arranging criss-cross expansion joints on the channel body 1, and arranging strengthening beams 4 in one-to-one correspondence with the transverse joints 3 on the channel body 1, and the strengthening beam 4 and the channel body 1 are integrally cast. By arranging the strengthening beam 4, the structural strength of the anti-seepage channel can be increased in the direction perpendicular to the water flow direction, and the deformation of the anti-seepage channel caused by the arrangement of the longitudinal joints 2 can be avoided. And by arranging the criss-cross transverse joints 3 and longitudinal joints 2, the durability and anti-seepage effect of the channel can be ensured on the premise of ensuring the channel structural strength.
[0041] Based on the above overall introduction, an exemplary structure of the anti-seepage channel structure of this embodiment is as Figures 1 to 2As shown in the figure, the channel body 1 includes a toe section 101, side slope sections 102 relatively connected to both sides of the toe section 101, and a shoulder section 103 connected to the side slope sections 102 away from the toe section 101. Longitudinal joints 2 are provided in the toe section 101 and the shoulder section 103; the extending direction of the transverse joints 3 runs through the channel body 1. The distance between two transverse joints 3 is greater than the distance between two strengthening beams 4. The strengthening beams 4 are extended and provided in the toe section 101 and the side slope sections 102.
[0042] As a specific implementation manner, the specific dimensions of the anti-seepage channel structure in this embodiment are combined with Figure 1 and Figure 2 As shown, the length L2 of the toe section 101 is 1 m, the slope of the side slope section 102 is 1, and its length L1 and height H are both 1.2 m. A transition section is provided between the toe section 101 and the side slope section 102, and the arc radius of the transition section is 0.5 m. The length a of the shoulder section 103 is 0.2 mm. As shown in Figure 1 , the distance between two strengthening beams 4 is 1.5 m, the distance between the strengthening beam 4 and its adjacent transverse joint 3 is 0.75 m, and the distance between two adjacent transverse joints 3 is 3 m.
[0043] As can be seen from the above, by arranging the two strengthening beams 4 between two adjacent transverse joints 3, that is, there is a strengthening beam 4 on both sides of each transverse joint 3, and by extending the strengthening beams 4 to be provided in the toe section 101 and the side slope sections 102, the setting of the strengthening beams 4 can strengthen the strength of the channel body 1 in both the water flow direction and the direction perpendicular to the water flow direction.
[0044] Combined with Figure 1 and Figure 2 As shown, the three longitudinal joints 2 are respectively provided at the center of the toe section 101 and on both sides of the shoulder section 103. By respectively arranging the longitudinal joints 2 in the toe section 101 and the shoulder section 103, expansion joints can be provided at both the bottom and the top of the channel body 1, which can increase the deformation requirements at different positions.
[0045] Furthermore, as shown in Figure 2 , the longitudinal joint 2 at the position of the strengthening beam 4 runs through along the thickness of the strengthening beam 4. With such a setting, it can be ensured that the longitudinal joint 2 runs through in the thickness direction of the entire channel body 1 and the strengthening beam 4, playing the role of a longitudinal expansion joint and improving the effect of alleviating freeze-thaw deformation.
[0046] As a preferred implementation manner, as shown in Figure 4 and Figure 5 , along the water flow direction, the longitudinal section of the strengthening beam 4 is an inverted trapezoidal structure, and the cross section of the strengthening beam 4 is a rectangle. The size range of the thickness t1 of the strengthening beam 4 is between 100 mm and 120 mm. Specifically, it can be 100 mm, 105 mm, 110 mm, 115 mm, 120 mm. As shown in Figure 5As shown, on the longitudinal section of the strengthening beam 4, the width of the side close to the channel body 1 is 200 mm, and the width of the side far from it is 120 mm.
[0047] As Figure 1 shown, the length L3 of the strengthening beam 4 in this embodiment is 3022 mm, and the thickness of the strengthening beam 4 is 120 mm. By setting the strengthening beam 4 as a trapezoidal structure with a wider top and a narrower bottom, it is not only convenient to increase the contact area between the strengthening beam 4 and the channel body 1 and improve the structural strength, but also can ensure the structural strength of the channel body 1 between the two transverse joints 3, which is beneficial to the deformation of the channel body 1 at the transverse joints 3, avoid cracks in other parts, and improve the anti-seepage effect.
[0048] Furthermore, the width range of the expansion joint is between 1.5 and 2.5 mm, specifically 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm and other values. The ratio of the width of the strengthening beam 4 to the width of the expansion joint is 6:1.
[0049] Just as Figure 3 shown, the expansion joint is filled with a polyethylene closed-cell foam board 5 and a polysulfide sealant 6. Specifically during implementation, the settlement joints, expansion joints and seismic joints on the building ground should be consistent with the structural positions to avoid cracking of the ground. In addition, when the ground cushion is made of concrete, expansion joints should be set longitudinally and transversely. The cement concrete cushion of the indoor ground should be provided with longitudinal shrinkage joints and transverse shrinkage joints. Generally speaking, the spacing should not be greater than 6 meters, and the transverse shrinkage joints should not be greater than 12 meters. Specifically, as Figure 2 shown, the spacing b1 between two adjacent transverse joints 3 is 3 m, and the spacing L between two longitudinal joints 2 located in the slope shoulder section 103 is 3.8 m to have a certain stability and safety.
[0050] Before installing the expansion joint, it is necessary to check whether its width and gap conform to the temperature difference and ensure that there is no debris in the gap. Only after confirmation can it be installed. When installing the expansion joint, in order to ensure no deformation, the hanging joint fixing method is usually used. The specific method is to vertically place a No. 25 I-beam with a length of 3 meters in the groove at an interval of 1 meter, and then use an instrument to check its flatness and straightness. After confirmation, welding is carried out. This construction method can not only prevent the deformation of the expansion joint, but also ensure its installation quality.
[0051] Before installing the expansion joint, iron baffles with a thickness of 2 mm can also be welded according to the depth of the anchorage groove, and a polystyrene board or a polyethylene closed-cell foam board 5 is filled between the two boards to provide support to ensure its construction quality. And a polysulfide sealant 6 is filled above the board, and the spreading area of the sealant is about 400 mm 2Avoid impurities from entering the seam. During construction, the expansion joint should be lifted and its position should be ensured to be accurate. The center line of the expansion joint should coincide with the center of the beam joint, and the top surface should be at the same height as the road surface. If any non-compliance is found, it must be adjusted in a timely manner. Before installing the expansion joint, its appearance and accuracy also need to be checked, and it can only be used after passing the inspection. Before constructing the bridge deck expansion joint, the debris on the bridge deck needs to be cleared, and the gap between the expansion joints should be filled. Then use an air compressor to remove the asphalt concrete, chisel the loose concrete, and remove the debris inside the expansion joint.
[0052] In addition, the thickness t2 of the channel body 1 ranges from 80 mm to 100 mm, specifically 80 mm, 85 mm, 90 mm, 95 mm, 100 mm, etc., which can be set according to specific needs.
[0053] In addition, the anti-seepage design can be strengthened. For the anti-seepage channel sections and parts, the full-section concrete lining of the channel has already played a certain anti-seepage role. According to the analysis of the anti-seepage measure effect, for the channel sections with good soil quality and weak permeability, no other anti-seepage measures are adopted. For the special channel sections with strong leakage and channel-crossing buildings, etc., a composite geomembrane needs to be laid in the full section to strengthen the anti-seepage. The anti-seepage material is selected as a two-layer geotextile and one-layer geomembrane composite geomembrane with a weight of 576 g / m 2 as the anti-seepage strengthening material. The elevation of the geomembrane for the anti-seepage of the channel slope is the same as that of the top of the lining and is pressed under the sealing roof, using a triangular edge pressing method. The anti-seepage materials are all laid under the concrete lining slab. The laying of the membrane layer is done by bonding, and the bonding width is not less than 0.1 m. The bonding direction is laid in sequence from downstream to upstream, with the upstream edge pressing the downstream edge.
[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. An anti-seepage channel structure, characterized in that: It comprises a channel body (1) arranged in a trapezoidal shape, and an expansion joint arranged on the channel body (1); The expansion joint comprises a longitudinal joint (2) arranged along the water flow direction, and a transverse joint (3) perpendicular to the water flow direction; The transverse slits (3) are arranged at intervals along the water flow direction; the longitudinal slits (2) are connected to the transverse slits (3); The channel body (1) is also provided with a reinforcing beam (4), the reinforcing beam (4) is arranged along the extension direction of the transverse seam (3), the reinforcing beam (4) and the transverse seam (3) are arranged one-to-one correspondingly, and the reinforcing beam (4) and the channel body (1) are integrally cast.
2. The anti-seepage channel structure according to claim 1, characterized in that: The channel body (1) comprises a slope foot section (101), side slope sections (102) relatively connected to both sides of the slope foot section (101), and a slope shoulder section (103) connected to the side slope section (102) and away from the slope foot section (101); The longitudinal seam (2) is arranged at the slope foot section (101) and the slope shoulder section (103); the extension direction of the transverse seam (3) passes through the channel body (1); The distance between the two transverse seams (3) is greater than the distance between the two reinforcing beams (4); The reinforcing beam (4) is extended and arranged at the slope foot section (101) and the side slope section (102).
3. The anti-seepage channel structure according to claim 2, characterized in that: The three longitudinal seams (2) are respectively arranged at the center of the slope foot section (101) and at both sides of the slope shoulder section (103).
4. The anti-seepage channel structure according to claim 2, characterized in that: The slope of the side slope section (102) is 1, and a transition section is provided between the slope foot section (101) and the side slope section (102).
5. The anti-seepage channel structure according to claim 3, characterized in that: The longitudinal seam (2) located at the reinforcing beam (4) penetrates along the thickness of the reinforcing beam (4).
6. The anti-seepage channel structure according to claim 1, characterized in that: Along the water flow direction, the longitudinal section of the reinforcing beam (4) is an inverted trapezoidal structure, and the cross section of the reinforcing beam (4) is a rectangle.
7. The anti-seepage channel structure according to claim 1, characterized in that: The width of the expansion joint is in the range of 1.5 to 2.5 mm, and the ratio of the width of the reinforcing beam (4) to the width of the expansion joint is 6:
1.
8. The anti-seepage channel structure according to claim 1, characterized in that: The expansion joint is filled with a polyethylene closed-cell foam board (5) and a polysulfide sealant (6).
9. The anti-seepage channel structure according to claim 1, characterized in that: The thickness t2 of the channel body (1) is in the range of 80 mm to 100 mm, and / or, The thickness t1 of the reinforcing beam (4) ranges from 100 mm to 120 mm.
10. The anti-seepage channel structure according to claim 1, characterized in that: The distance between two adjacent transverse joints (3) is 3m.