Embedded type water stopping and draining device
By designing an embedded drainage device with integrated water stop wings and drainage tanks, the problem of existing water stops being unable to effectively drain and the water stop wings being easily deviated is solved, effectively filtration and discharge of tunnel seepage is achieved, and the sealing of water stops is improved.
Patent Information
- Application Number
- CN202421802693.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In existing tunnel projects, the water stop belt only has water stop function but not water drainage function, resulting in water leakage in other places after blocking the leakage point. Moreover, the water stop wings are easily offset when installed, resulting in water stop failure.
An embedded drainage stop is designed, including a belt-shaped elastic body, with a back-mounted water stop wing and a middle buried water stop wing in the cross section. The functions of the two are integrated through vertical connecting ribs, a filter layer and a drainage tank are set up to increase the water conduction function, and a hook-shaped water stop ridge is provided at the end of the water stop wing to avoid deviation.
By integrating the water stop wings and drainage tanks, water seepage filtration and discharge at the tunnel construction joints are achieved, avoiding water leakage again after sealing, and ensuring the correct installation of the water stop wings through hook-shaped water stop ridges, improving the sealing of the water stop.
Smart Images
Figure CN222797524U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tunnel engineering, in particular to an embedded water stopper. Background Art
[0002] Water leakage is one of the main diseases that plague tunnel operations. About half of the water leakage during operation occurs at the joints, which has a significant impact and threat to the safety, comfort, and normal operation of the tunnel. For tunnels in water-rich areas, the preset water diversion system, waterproofing system, water-stopping system, etc., fail due to exceeding their own protection capabilities, and water leakage is easily formed at the concrete joints.
[0003] The general method for dealing with water leakage is grouting and sealing. However, the waterstop used in tunnels currently has a water-stopping function but not a drainage function. After grouting and sealing, the internal water will leak again at other weak drainage locations as the water pressure increases. Therefore, water stopping alone cannot solve the problem of water leakage again. In addition, the existing waterstop is prone to causing the waterstop wings of the waterstop to shift during installation, which in turn causes the waterstop to fail and lead to water seepage. Summary of the invention
[0004] The utility model aims to overcome the deficiencies of the prior art and provide an embedded water stop and drain device.
[0005] The technical solution adopted by the utility model is as follows:
[0006] A buried water stop and drain device comprises a strip-shaped elastic body, the cross section of which comprises two symmetrically arranged parts, each part comprising a back-attached water stop wing and a middle-buried water stop wing, the back-attached water stop wing and the middle-buried water stop wing are connected by a vertical connecting rib, two transverse ribs are arranged between the two vertical connecting ribs, elastic deformation holes are formed between the inner side walls of the two vertical connecting ribs and the inner side walls of the two transverse ribs, an upper-opening drainage groove is formed between the inner side walls of the two vertical connecting ribs and the outer side wall of the upper transverse rib, a filter layer is arranged at the notch of the drainage groove, and a lower-opening groove is formed between the inner side walls of the two vertical connecting ribs and the outer side wall of the lower transverse rib.
[0007] Furthermore, in a natural state, the back-attached waterstop wing and the embedded waterstop wing are not arranged in parallel, the back-attached waterstop wing has an outward and upward inclination angle α, and the two back-attached waterstop wings are arranged in an outward "eight" shape.
[0008] Furthermore, the inclination angle α is 15° to 30°.
[0009] Furthermore, the inclination angle α is 20°
[0010] Furthermore, both ends of the drainage trough are externally connected to drainage pipes.
[0011] Furthermore, the filter layer is a permeable geotextile.
[0012] Furthermore, the ends of the back-attached water-stop wing and the embedded water-stop wing are both provided with hook-shaped water-stop edges.
[0013] Furthermore, a rectangular water-stop edge is provided in the middle of the embedded water-stop wing. Beneficial Effects
[0014] 1. The utility model integrates the functions of the embedded water stop wing and the back water stop wing into one through the connecting ribs, which is easy to install. By setting the filter layer and the drainage trough, the water guiding function is increased. The tunnel seepage water can be discharged through the drainage trough and the external drainage pipe after the mud residue is filtered out by the filter layer at the construction joint position, thus avoiding the situation of water leakage in other places after the leakage point is blocked.
[0015] 2. By setting elastic deformation holes, deformation can be achieved when the grade of the tunnel surrounding rock changes.
[0016] 3. The utility model has hook-shaped water-stop edges at the ends of the back-attached water-stop wings and the embedded water-stop wings, and a rectangular water-stop edge is also provided in the middle of the embedded water-stop wings, so that it is tightly connected with the concrete, avoiding the deviation of the water-stop wings, resulting in water-stop failure and water seepage. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the utility model;
[0018] Figure 2 This is a construction diagram of a preferred embodiment of the utility model;
[0019] Figure 3 for Figure 2 Section along II;
[0020] Figure 4 for Figure 2 Section along II-II;
[0021] In the figure: filter layer 1, back-attached water stop wing 2, elastic deformation hole 3, groove 4, vertical connection rib 5, embedded water stop wing 6, drainage pipe 7, upper transverse rib 8, lower transverse rib 9, hook-shaped water stop edge 10， Rectangular water stop edge 11, drainage groove 12, embedded water stop and drainage device 100. DETAILED DESCRIPTION
[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.
[0023] Example: See Figures 1 to 4As shown, an embedded water stop and drain device includes a strip-shaped elastic body, the cross-section of the strip-shaped elastic body includes two symmetrically arranged parts, each part includes a back-attached water stop wing 2 and a middle-buried water stop wing 6, the back-attached water stop wing 2 and the middle-buried water stop wing 6 are connected by a vertical connecting rib 5, two transverse ribs are provided between the two vertical connecting ribs 5, elastic deformation holes 3 are formed between the inner side walls of the two vertical connecting ribs 5 and the inner side walls of the two transverse ribs, an upper-opening drainage groove 12 is formed between the inner side walls of the two vertical connecting ribs 5 and the outer side walls of the upper transverse rib 8, a filter layer 1 is provided at the notch of the drainage groove 12, and the filter layer 1 can be a permeable geotextile; a lower-opening groove 4 is formed between the inner side walls of the two vertical connecting ribs 5 and the outer side walls of the lower transverse rib 9.
[0024] like Figure 1 As shown, in the natural state, the back-stick water-stop wing 2 and the embedded water-stop wing 6 are not arranged in parallel, and the back-stick water-stop wing 2 has an outward and upward inclination angle α, and the two back-stick water-stop wings 2 are arranged in an outer "eight" shape. Preferably, the inclination angle α is 15° to 30°. More preferably, the inclination angle α is 20°, and the two back-stick water-stop wings 2 are arranged in an outer "eight" shape so that the back-stick water-stop wings can evenly distribute the pressure when in contact with the waterproof board, and can be more easily aligned and fitted during installation, reducing the installation difficulties caused by asymmetry or unevenness, thereby improving the sealing of the water stop and reducing the possibility of leakage.
[0025] like Figure 2 As shown, both ends of the drainage groove 12 are connected to drainage pipes 7, through which the seepage water can be discharged.
[0026] like Figure 1 , 3 As shown in 4, the ends of the back-attached water stop wing 2 and the embedded water stop wing 6 are both provided with hook-shaped water stop edges. 10 A rectangular water-stop edge 11 is provided in the middle of the embedded water-stop wing 6. The water-stop edge is provided to make it tightly connected with the concrete to avoid the water-stop wing from deviating, causing water-stop failure and water seepage.
[0027] During installation, one side of the back-adhered water-stop wing 2 of the embedded water-stopping device 100 of the utility model is circumferentially pressed against the waterproof board, and the end wooden template is inserted into the groove 4. The embedded water-stop wing 6 is fixed with a steel bar clamp every 2 meters along the circumferential direction, and then the second lining is poured. After the second lining is poured, the trolley is demoulded, the end template is removed, and the two ends of the drainage trough 12 are externally connected to the drainage pipe 7. The drainage pipe 7 adopts a PPR rectangular pipe; when water seepage occurs in the construction joint, grouting is adopted to seal it. After the tunnel seepage passes through the filter layer at the construction joint position to filter out the mud and residue, it can be discharged through the drainage trough and the external drainage pipe, avoiding the situation where water seepage occurs again in other places after the leakage point is blocked.
Claims
1. An embedded water stopper and drainer, comprising a band-shaped elastic body, characterized in that: The cross section of the strip-shaped elastic body comprises two symmetrically arranged parts, each part comprising a back-attached water stop wing (2) and a middle-buried water stop wing (6), the back-attached water stop wing (2) and the middle-buried water stop wing (6) are connected by a vertical connecting rib (5), two transverse ribs are arranged between the two vertical connecting ribs (5), elastic deformation holes (3) are formed between the inner side walls of the two vertical connecting ribs (5) and the inner side walls of the two transverse ribs, an upper-opening drainage groove (12) is formed between the inner side walls of the two vertical connecting ribs (5) and the outer side walls of the upper transverse rib (8), a filter layer (1) is arranged at the notch of the drainage groove (12), and a lower-opening groove (4) is formed between the inner side walls of the two vertical connecting ribs (5) and the outer side walls of the lower transverse rib (9).
2. The embedded water stop and drain device according to claim 1, characterized in that: In a natural state, the back-attached water-stop wing (2) and the embedded water-stop wing (6) are not arranged in parallel, the back-attached water-stop wing (2) has an outward and upward inclination angle α, and the two back-attached water-stop wings (2) are arranged in an outward "eight" shape.
3. The embedded water stop and drain device according to claim 2, characterized in that: The inclination angle α is 15° to 30°.
4. The embedded water stop and drain device according to claim 2 or 3, characterized in that: The inclination angle α is 20°.
5. The embedded water stop and drain device according to claim 1, characterized in that: Both ends of the drainage trough (12) are externally connected to drainage pipes (7).
6. The embedded water stop and drain device according to claim 1, characterized in that: The filter layer (1) is a permeable geotextile.
7. The embedded water stop and drain device according to claim 1, characterized in that: The ends of the back-attached water-stop wing (2) and the embedded water-stop wing (6) are both provided with hook-shaped water-stop edges (10).
8. The embedded water stop and drain device according to claim 1, characterized in that: A rectangular water-stop edge (11) is arranged in the middle of the embedded water-stop wing (6).