Special four-way component for tunnel drainage system
By designing the special four-way components for the tunnel drainage system, the problem of unreasonable connection of the tunnel drainage system is solved, effective connection of pipelines and efficient operation of the drainage system are achieved, and maintenance costs are reduced.
Patent Information
- Application Number
- CN202421284373.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The existing tunnel drainage system lacks reasonable jointing methods when connecting longitudinal, transverse and annular drainage blind pipes, resulting in poor connection quality, poor drainage effect, and increases maintenance costs during the operation period.
Design a special four-way component for tunnel drainage system, including the first joint, the second joint, the third joint and the fixing plate, through these joints, the longitudinal, transverse and circumferential drainage blind pipes are reasonably connected, simplifying the connection method and improving the connection Quality, and through the inner diameter design and the arrangement of the fixing plates, avoid drainage and siltation and maintenance costs.
It realizes effective connection of pipelines in multiple different directions, simplifies the connection process, improves the construction quality of the drainage system and the maintenance efficiency during the operation period, and reduces maintenance costs.
Smart Images
Figure CN222316282U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of tunnel drainage, and more specifically to a special four-way component for a tunnel drainage system. Background Art
[0002] At present, most mountain tunnels implement the design and construction concept of "combining drainage and blocking" by setting up a tunnel drainage system to reduce the groundwater pressure behind the lining. Especially in water-rich sections, once the tunnel drainage system is blocked and drainage is poor, it is likely to cause groundwater to accumulate behind the tunnel lining and be unable to be discharged smoothly, causing the groundwater pressure on the tunnel lining to increase. When it increases to a certain level, groundwater will seep out from the weak points of the tunnel waterproofing, and even cause problems such as lining cracking, roadbed water gushing, and road surface cracking. Therefore, the construction quality and operation status of the tunnel drainage system are crucial.
[0003] However, since the tunnel drainage system is a concealed project, the control of its construction quality has been neglected for a long time, and the overlap quality of the tunnel lining drainage blind pipe is one of the important issues. At present, the tunnel lining drainage system is generally composed of the tunnel lining longitudinal drainage blind pipe, the transverse drainage blind pipe and the annular drainage blind pipe. The three are generally connected by joints, but there is a lack of special joints at the intersection, and there is no reasonable way to connect the annular drainage blind pipe with the longitudinal drainage blind pipe.
[0004] Based on this, the present invention aims to provide a new type of tunnel drainage system joint, which can reasonably connect the longitudinal drainage blind pipes, transverse drainage blind pipes and annular drainage blind pipes of the tunnel lining, which can not only improve the connection construction quality of the drainage system, but also realize the inspection and maintenance of the annular drainage blind pipes behind the tunnel lining during the operation period through the connection design. Utility Model Content
[0005] The utility model aims to overcome at least one defect (shortcoming) of the above-mentioned prior art and provides a four-way component dedicated to a tunnel drainage system, which is used to solve the problems of unreasonable connection between the longitudinal drainage blind pipes, transverse drainage blind pipes and annular drainage blind pipes of the tunnel lining, poor drainage effect caused by poor connection quality, and high inspection and maintenance costs for the drainage system during operation caused by complicated connection components.
[0006] The technical solution adopted by the utility model is a four-way component specially used for a tunnel drainage system. The tunnel drainage system includes a longitudinal drainage blind pipe, an annular drainage blind pipe and a transverse drainage blind pipe, wherein the first joint, the second joint, the third joint and a fixing plate are included. The first joint is connected to the longitudinal drainage blind pipe, the second joint is connected to the annular drainage blind pipe, the third joint is connected to the transverse drainage blind pipe, and the fixing plates are arranged on both sides of the second joint.
[0007] It is beneficial to connect multiple pipes laid in different directions at the same time through the four-way component, including the longitudinal drainage blind pipes laid along the length of the tunnel, the annular drainage blind pipes buried in the tunnel lining, and the transverse drainage blind pipes buried under the tunnel pavement, so that the drainage of the tunnel lining and the tunnel pavement is concentrated and discharged, reducing the number of connecting components between the drainage blind pipes, simplifying the connection method, improving the connection construction quality, and reducing the maintenance cost during operation.
[0008] Furthermore, the first joint includes a front end joint and a rear end joint respectively connected to two adjacent longitudinal drainage blind pipes, and the front end joint is connected to the rear end joint to form a first connection space together.
[0009] It is beneficial to connect several longitudinal drainage blind pipes arranged along the length of the tunnel in the tunnel drainage system through the four-way component, and the adjacent longitudinal drainage blind pipes are respectively connected to the front end joint and the rear end joint, thereby improving the connection quality between the longitudinal drainage blind pipes and reducing the maintenance cost.
[0010] Furthermore, the inner diameter of the end face of the front end joint away from the first joint is D11, the inner diameter of the end face of the rear end joint away from the first joint is D12, and the inner diameters of the end faces of the front end joint and the rear end joint in the first connection space are both D13, and D11=D12>D13.
[0011] It is beneficial to increase the flow rate of drainage from the front end joint or the rear end joint to the first connection space through the change of the inner diameter, thereby avoiding clogging of the drainage inside the first connection space.
[0012] Furthermore, the second joint includes a joint base plate, a joint tube wall and an annular groove, the joint base plate is in the shape of a flat plate, the joint tube wall is in the shape of an arc, the joint base plate is connected to the two ends of the joint tube wall to form a semicircular tube, the end face of the semicircular tube away from the first joint is semicircular, the end face of the semicircular tube close to the first joint forms a second connection space together with the first joint, and the annular groove is arranged in the second connection space for connecting the first joint.
[0013] It is beneficial to fit the flat plate of the joint bottom plate to the wall of the tunnel lining, and to improve the drainage effect of accumulated water through the arc shape of the joint pipe wall; it is beneficial to improve the connection quality between the annular drainage blind pipe and the longitudinal drainage blind pipe through the annular groove, avoid falling off between the two, and avoid drainage blockage caused by complex connection components.
[0014] Furthermore, the inner diameter of the end surface of the second joint away from the first joint is D21, and the inner diameter of the end surface of the second joint in the second connection space is D22, and D21>D22.
[0015] It is beneficial to increase the flow rate of drainage from the annular drainage blind pipe to the second connection space through the change of the inner diameter, and avoid clogging of drainage in the second connection space.
[0016] Furthermore, the joint bottom plate is flush with the fixing plate.
[0017] It is beneficial to fix the four-way component on the initial support of the tunnel through the fixing plate, and the waterproof plate will not fall off or break due to the pouring pressure of the secondary lining concrete, thereby strengthening the connection stability of the four-way component; it is beneficial to avoid the formation of a gap between the joint bottom plate and the tunnel lining through the fixing plate flush with the joint bottom plate, thereby affecting the stability of the connection structure of the annular drainage blind pipe and avoiding the problem of joint deformation during the secondary lining concrete of the tunnel.
[0018] Furthermore, the third connector includes a transverse slot, and an end surface of the third connector close to the first connector forms a third connection space together with the first connector, and the transverse slot is arranged in the third connection space for clamping the first connector.
[0019] It is beneficial to improve the connection quality between the horizontal drainage blind pipe and the vertical drainage blind pipe through the horizontal groove, avoid falling off between the two, and avoid drainage blockage caused by complex connection components.
[0020] Furthermore, the inner diameter of the end surface of the third joint away from the first joint is D31, the inner diameter of the end surface of the third joint in the third connection space is D32, and D31>D32.
[0021] It is beneficial to slow down the flow rate of drainage from the third connection space to the horizontal drainage blind pipe through the change of the inner diameter, and avoid turbulence in the third connection space after the drainage converges, thereby affecting the service life of the horizontal drainage blind pipe.
[0022] Furthermore, a projection of a center line of the second joint on the first joint and a projection of a center line of the third joint on the first joint both overlap with a waistline of the first joint.
[0023] It is beneficial to arrange the second joint, the third joint and the first joint so that the first connection space, the second connection space and the third connection space can be interconnected to avoid drainage blockage in the four-way component, and the volume of the four-way component connected to four drainage blind pipes at the same time can be reduced, thereby reducing manufacturing costs.
[0024] Furthermore, an angle α between a center line of the second joint and a center line of the third joint is an obtuse angle.
[0025] It is beneficial to arrange the angles of the second joint and the third joint, so as to avoid clogging of the drainage where the annular drainage blind pipe and the longitudinal drainage blind pipe converge due to too small an angle, and to avoid the four-way component being too large to match the limited space in the tunnel; it is beneficial to arrange the angles of the second joint and the third joint, so that during the operation period, special inspection equipment can be used to extend from the third joint to the second joint to check the operating status of the annular drainage blind pipe connected to the second joint.
[0026] Compared with the prior art, the beneficial effects of the utility model are as follows: a plurality of pipes arranged in different directions are connected at the same time through the four-way component, so that the drainage of the tunnel lining and the tunnel pavement is concentrated and discharged, the number of connecting components between each drainage blind pipe is reduced, the connection method is simplified, the connection quality is improved, and the probability of occurrence of diseases during the operation period caused by construction quality problems of the tunnel drainage system is reduced, which has the effect of reducing the maintenance cost during the operation period. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a structural schematic diagram of the utility model.
[0028] Figure 2 This is an angled cross-sectional view of the second joint and the third joint of the utility model on the first joint.
[0029] Figure 3 This is a schematic diagram of the second joint of the present utility model.
[0030] Figure 4 This is a schematic diagram of the third joint of the present utility model.
[0031] Description of the symbols in the accompanying drawings: first joint 1, second joint 2, joint bottom plate 21, joint pipe wall 22, second connecting space 23, annular groove 3, fixing plate 4, third joint 5, transverse groove 6. DETAILED DESCRIPTION
[0032] The drawings of the present invention are only used for illustrative purposes and cannot be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.
[0033] Example
[0034] like Figure 1-4As shown, this embodiment provides a special four-way component for a tunnel drainage system, wherein the tunnel drainage system includes a longitudinal drainage blind pipe, an annular drainage blind pipe and a transverse drainage blind pipe, wherein the first joint 1, the second joint 2, the third joint 5 and the fixing plate 4 are included, wherein the first joint 1 is connected to the longitudinal drainage blind pipe, the second joint 2 is connected to the annular drainage blind pipe, the third joint 5 is connected to the transverse drainage blind pipe, and the fixing plate 4 is arranged on both sides of the second joint 2.
[0035] In this embodiment, the longitudinal drainage blind pipe uses a semi-permeable curved mesh permeable pipe with an outer diameter of 114 mm, the transverse drainage blind pipe uses a national standard φ110 PVC drainage pipe or corrugated pipe, and the annular drainage blind pipe can use a semi-section drainage blind pipe or a semicircular permeable pipe, and the outer diameter of the semicircular or semi-section permeable pipe is 110 mm.
[0036] The first joint 1 includes a front joint and a rear joint respectively connected to two adjacent longitudinal drainage blind pipes, and the front joint is connected to the rear joint to form a first connection space together.
[0037] The inner diameter of the end face of the front end joint away from the first joint 1 is D11, the inner diameter of the end face of the rear end joint away from the first joint 1 is D12, and the inner diameters of the end faces of the front end joint and the rear end joint in the first connection space are both D13, D11=D12>D13.
[0038] In this embodiment, the first joint 1 is composed of two joint parts, front and rear ends, namely the front end joint and the rear end joint. The total length of the first joint 1 is 220 mm, and the pipe diameter gradually increases from the center of the joint to the front and rear ends. The central inner diameter D13 is 112 mm, and the inner diameters D11 and D12 of the front and rear ends are 115 mm. The pipe wall thickness of the first joint 1 is 4 mm.
[0039] The second joint 2 includes a joint base plate 21, a joint tube wall 22 and an annular groove 3. The joint base plate 21 is in the shape of a flat plate, and the joint tube wall 22 is in the shape of an arc. The joint base plate 21 is connected to both ends of the joint tube wall 22 to form a semicircular tube. The end face of the semicircular tube away from the first joint 1 is semicircular, and the end face of the semicircular tube close to the first joint 1 forms a second connection space 23 together with the first joint 1. The annular groove 3 is arranged in the second connection space 23 for connecting the first joint 1.
[0040] The inner diameter of the end surface of the second joint 2 away from the first joint 1 is D21, and the inner diameter of the end surface of the second joint 2 in the second connecting space 23 is D22, and D21>D22.
[0041] In this embodiment, the second joint 2 is composed of the joint bottom plate 21, the joint tube wall 22, and the annular groove 3 arranged along the tube wall. The thickness of the joint bottom plate 21 and the joint tube wall 22 is 4 mm. The inner diameter of the second joint 2 gradually expands from the center of the joint to the pipe mouth. The inner diameter D22 at the center is 108 mm, and the inner diameter D21 at the pipe mouth is 112 mm. The annular groove 3 is arranged along the inner wall of the intersection of the second joint 2 and the first joint 1, and is integrated with the inner wall. The width of the annular groove 3 is 2 mm and the thickness is 2 mm.
[0042] The joint bottom plate 21 is flush with the fixing plate 4 .
[0043] In this embodiment, the fixing plate 4 includes two pieces, which are respectively connected to the two ends of the joint pipe wall 22 and are simultaneously connected to the joint bottom plate 21. The length of the fixing plate 4 along the direction of the first joint 1 is less than the length of the first joint 1, and the height of the fixing plate 4 along the direction of the second joint 2 is less than the height of the joint bottom plate 21; so that the size of the fixing plate 4 does not affect the connection between the longitudinal drainage blind pipe and the annular drainage blind pipe.
[0044] The third connector 5 includes a transverse slot 6. The end surface of the third connector 5 close to the first connector 1 forms a third connection space together with the first connector 1. The transverse slot 6 is arranged in the third connection space for clamping the first connector 1.
[0045] The inner diameter of the end surface of the third joint 5 away from the first joint 1 is D31, and the inner diameter of the end surface of the third joint 5 in the third connection space is D32, and D31>D32.
[0046] In this embodiment, the third joint 5 is provided with the transverse groove 6, the inner diameter of the third joint 5 gradually expands from the joint center to the pipe mouth, the inner diameter D32 at the center is 108mm, the inner diameter D31 at the pipe mouth is 112mm, and the wall thickness of the third joint 5 is 4mm. The transverse groove 6 is provided at the intersection of the third joint 5 and the first joint 1, with a thickness of 2mm and a width of 2mm, and is integrated with the inner wall of the third joint 5 at the intersection.
[0047] The projection of the center line of the second joint 2 on the first joint 1 and the projection of the center line of the third joint 5 on the first joint 1 both overlap with the waistline of the first joint 1 .
[0048] In this embodiment, the second joint 2 and the third joint 5 are both arranged in the middle of the first joint 1, avoiding misaligned arrangement to cause multiple connection positions and increase drainage resistance. At the same time, the second joint 2 and the third joint 5 can be concentrated at the same position of the first joint 1, reducing the volume of the dedicated four-way component.
[0049] The angle α between the center line of the second joint 2 and the center line of the third joint 5 is an obtuse angle.
[0050] In this embodiment, the angle α=110°.
[0051] Obviously, the above embodiments of the utility model are only examples for clearly explaining the technical solution of the utility model, and are not intended to limit the specific implementation methods of the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the utility model shall be included in the protection scope of the claims of the utility model.
Claims
1. A special four-way component for a tunnel drainage system, the tunnel drainage system includes a longitudinal drainage blind pipe, an annular drainage blind pipe and a transverse drainage blind pipe, characterized in that: It includes a first joint, a second joint, a third joint and a fixing plate, the first joint is connected to the longitudinal drainage blind pipe, the second joint is connected to the annular drainage blind pipe, the third joint is connected to the transverse drainage blind pipe, and the fixing plate is arranged on both sides of the second joint.
2. The tunnel drainage system dedicated four-way component according to claim 1, characterized in that: The first joint includes a front end joint and a rear end joint respectively connected to two adjacent longitudinal drainage blind pipes, and the front end joint is connected to the rear end joint to form a first connection space together.
3. The special four-way component for tunnel drainage system according to claim 2, characterized in that: The inner diameter of the end face of the front end joint away from the first joint is D11, the inner diameter of the end face of the rear end joint away from the first joint is D12, and the inner diameters of the end faces of the front end joint and the rear end joint in the first connection space are both D13, D11=D12>D13.
4. The special four-way component for tunnel drainage system according to claim 1, characterized in that: The second joint includes a joint base plate, a joint tube wall and an annular groove. The joint base plate is in the shape of a flat plate, the joint tube wall is in the shape of an arc, the joint base plate is connected to the two ends of the joint tube wall to form a semicircular tube, the end face of the semicircular tube away from the first joint is semicircular, the end face of the semicircular tube close to the first joint forms a second connection space together with the first joint, and the annular groove is arranged in the second connection space for connecting the first joint.
5. The special four-way component for tunnel drainage system according to claim 4, characterized in that: The inner diameter of the end surface of the second joint away from the first joint is D21, and the inner diameter of the end surface of the second joint in the second connection space is D22, and D21>D22.
6. The special four-way component for tunnel drainage system according to claim 4, characterized in that: The joint bottom plate is flush with the fixing plate.
7. The special four-way component for tunnel drainage system according to claim 1, characterized in that: The third connector includes a transverse slot, and an end surface of the third connector close to the first connector forms a third connection space together with the first connector. The transverse slot is arranged in the third connection space for clamping the first connector.
8. The special four-way component for tunnel drainage system according to claim 7, characterized in that: The inner diameter of the end surface of the third joint away from the first joint is D31, and the inner diameter of the end surface of the third joint in the third connection space is D32, and D31>D32.
9. The special four-way component for tunnel drainage system according to any one of claims 1 to 8, characterized in that: A projection of a center line of the second joint on the first joint and a projection of a center line of the third joint on the first joint both overlap with a waistline of the first joint.
10. The special four-way component for tunnel drainage system according to any one of claims 1 to 8, characterized in that: An angle α between a center line of the second joint and a center line of the third joint is an obtuse angle.