Double-color double-layer semi-transparent anti-crystallization drain pipe
By adopting a two-color, double-layer semi-permeable anti-crystalline drainage pipe, and using the combination of a double-layer circumferential curved mesh rib structure and a sealed layer, the problem of longitudinal drainage pipes being susceptible to compression and cracking and groundwater crystal blockage is solved, achieving higher bearing capacity, faster drainage speed and longer service life.
Patent Information
- Application Number
- CN202421279318.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The existing longitudinal drainage pipes are susceptible to compression of the tunnel support structure and the groundwater in the tunnel is prone to crystallization blockage, resulting in untimely discharge of groundwater, resulting in cracking of lining, leaking water, and bulging of the bottom.
A two-color double-layer semi-permeable anti-crystalline drainage pipe is adopted, including a double-layer circumferential curved mesh rib structure and a sealed layer. It provides better bearing capacity through the double-layer structure overlapping inside and outside. The permeable hole collects crack water and increases the elasticity of the circumferential curved mesh rib structure. The sealed layer prevents crack water from settled at the bottom of the pipeline and crystallizes.
Effectively prevent longitudinal drainage pipes from rupturing and deforming due to compression, improve drainage speed, prevent crystallization and blockage, extend the service life of the pipeline, avoid lining diseases, and ensure the safety of tunnel structure and operation.
Smart Images
Figure CN222772250U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of highway tunnel drainage engineering, and more specifically, to a two-color double-layer semi-permeable anti-crystallization drainage pipe. Background Art
[0002] The drainage system of a highway tunnel generally includes annular drainage blind pipes, longitudinal drainage blind pipes, transverse water diversion pipes, and drainage side ditches. Among them, the annular drainage blind pipes and longitudinal drainage blind pipes are set behind the lining to receive groundwater from the fissures of the surrounding rock. The longitudinal drainage blind pipes behind the tunnel lining are distributed longitudinally along both sides of the highway tunnel, not to the side walls on both sides of the tunnel. The annular drainage blind pipes behind the tunnel lining are distributed along the annular direction of the highway tunnel, with a spacing of 10-20 meters, collecting the groundwater behind the lining to the longitudinal drainage blind pipes, and finally draining the groundwater to the drainage side ditches through the longitudinal drainage blind pipes and the transverse water diversion pipes to complete the discharge of groundwater.
[0003] The longitudinal drainage blind pipe plays a key role in the drainage system. At present, the longitudinal drainage pipe generally adopts φ110mm perforated corrugated pipe or PVC pipe, which is very easy to be compressed by the tunnel support structure and cause pipe rupture, deformation and other problems. At the same time, the groundwater in the tunnel area contains rich calcium ions, magnesium ions, carbonate ions, etc., which leads to crystallization and blockage in the drainage system of the tunnel under construction and in operation. The above problems will cause the groundwater to be discharged untimely, resulting in increased water pressure behind the lining, causing a series of diseases such as lining cracking, water leakage, and bulging of the bottom of the arch, which seriously threatens the tunnel structure and operation safety. Utility Model Content
[0004] The utility model aims to overcome at least one defect (shortcoming) of the above-mentioned prior art and provides a two-color double-layer semi-permeable anti-crystallization drainage pipe, which is used to solve the problems that the longitudinal drainage blind pipe is easily compressed by the tunnel support structure and the pipeline breaks and deforms; and the groundwater drainage system in the tunnel is prone to crystallization blockage, resulting in untimely discharge of groundwater, causing lining cracks, water leakage, bulging at the bottom of the arch and other problems.
[0005] The technical solution adopted by the utility model is a two-color double-layer semi-permeable anti-crystallization drainage pipe, which includes a longitudinal drainage blind pipe, the longitudinal drainage blind pipe is used to connect the annular drainage blind pipe arranged behind the tunnel lining and guide the discharge of fissure water. The longitudinal drainage blind pipe is a double-layer structure, and the double-layer structure includes a double-layer annular curved mesh rib structure and a sealing layer arranged at the bottom thereof. The annular curved mesh rib structure includes an outer annular curved rib surface layer and an inner annular curved rib surface layer that overlap each other, and a water-permeable hole is formed between the two. The sealing layer is used to seal the water-permeable hole located at the bottom of the annular curved mesh rib structure.
[0006] It is beneficial to connect the annular drainage blind pipe behind the tunnel lining through the longitudinal drainage blind pipe, collect the fissure water flowing into the annular drainage blind pipe, and then connect it to the transverse water diversion pipe and the tunnel drainage side ditch through the longitudinal drainage blind pipe to discharge the collected fissure water in time; it is beneficial to provide better bearing capacity through the double-layer structure overlapping inside and outside to prevent the pipeline from rupture and deformation when it is compressed by the tunnel support structure; it is beneficial to further collect fissure water through the permeable holes and increase the elasticity of the annular curved mesh rib structure to prevent the accumulation of fissure water in the tunnel lining to cause lining cracking and bulging at the bottom of the arch, and to have elastic space to deform it to relieve compression when the pipeline is subjected to uneven force; it is beneficial to collect fissure water through the closed layer and prevent it from settling and crystallizing at the bottom of the pipeline, so as to avoid chemical reactions in the process of discharge of fissure water and cause crystallization blockage.
[0007] The water-permeable holes are formed by the curved rib buds and the curved ribs. The water-permeable holes are rhombus-like, oblong or elliptical and are evenly distributed on the annular curved mesh rib structure.
[0008] It is beneficial to form evenly distributed permeable holes through the overlapping outer layer of annular curved rib surface and the inner layer of annular curved rib surface to speed up the drainage speed and improve the permeability of collecting fissure water; the two ends of the permeable holes are curved rib buds and the two sides are curved ribs to improve the bending resistance of the annular curved mesh rib structure.
[0009] The outer layer of the annular curved rib surface includes outer layer curved rib buds and outer layer curved ribs, and the outer layer curved ribs are arranged at equal intervals along the annular direction on the outer wall of the annular curved mesh rib structure.
[0010] The inner layer annular curved rib surface layer includes inner layer curved rib buds and inner layer curved ribs, and the inner layer curved ribs are arranged at equal intervals along the annular direction on the inner wall of the annular curved mesh rib structure.
[0011] It is beneficial to form an outer layer circumferential curved rib surface and an inner layer circumferential curved rib surface which are not easy to break or crush, have strong anti-settling ability, strong bending resistance and strong anti-extrusion force through the outer layer curved rib buds and inner layer curved rib buds overlapping in opposite directions, and the outer layer curved ribs and inner layer curved ribs overlapping in opposite directions; it is beneficial to simplify the construction steps and reduce the construction cost through the same outer layer curved rib buds and inner layer curved rib buds, the same outer layer curved ribs and inner layer curved ribs.
[0012] The sealing layer includes a welding base layer and a nano coating, wherein the welding base layer is welded to the surface layer of the inner annular curved ribs, and the nano coating is sprayed on the welding base layer to form an anti-sticking inner wall.
[0013] It is beneficial to grind the annular curved mesh rib structure into a smooth inner wall through the welding base layer to improve the stability of the nano coating on the welding base layer; it is beneficial to improve the hydrophobicity and anti-stickiness of the sealing layer through the nano coating to prevent the crystallization of the fissure water collected in the pipeline and cause blockage.
[0014] The surface area covered by the welded base layer is 1 / 4 of the inner surface area of the annular curved mesh rib structure.
[0015] It is beneficial to weld the surface area of the base layer to the ratio of the inner surface area of the annular curved mesh rib structure, which helps to clear the fissure water that is easy to settle at the bottom of the pipeline in time and prevent crystallization.
[0016] The fusion bonding base layer is a polyethylene layer.
[0017] It is beneficial to improve the safety of pipeline use through polyethylene. At the same time, polyethylene pipes are easy to obtain at the construction site, which facilitates the construction of the welding base.
[0018] The thickness of the nano coating is 0.3 mm.
[0019] It is beneficial to use a nano-coating of a specific thickness to enhance the hydrophobicity and anti-crystallization effect on the pipeline, so that it can be buried in the tunnel lining for a long time without replacement, thus extending the service life of the pipeline.
[0020] The double-layer structure is a high-density polyethylene structure.
[0021] It is beneficial to improve the tensile strength of the double-layer structure through the high-density polyethylene structure, making it more resistant to deformation.
[0022] The longitudinal drainage blind pipe is a circular pipe body, a plurality of circular pipe bodies are connected in series along the tunnel, and special glue and non-woven fabric are provided at the connection points.
[0023] It is beneficial to connect all the longitudinal drainage blind pipes in the tunnel by connecting multiple circular pipes in series, and to guide the collected fissure water to the horizontal water diversion pipes set in the tunnel lining, and discharge it in time from the drainage side ditch.
[0024] Compared with the prior art, the utility model has the following beneficial effects: the annular drainage blind pipes behind the tunnel lining are connected through the longitudinal drainage blind pipes, and the collected fissure water is discharged in time; the double-layer structure overlapped inside and outside is used to provide better bearing capacity to prevent the pipeline from rupture and deformation when it is compressed by the tunnel support structure; the fissure water is further collected through the water-permeable holes and the elasticity of the annular curved rib structure is increased to prevent the fissure water from accumulating in the tunnel lining to cause lining cracks and bulging at the bottom of the arch, and when the pipeline is subjected to uneven force, there is elastic space to deform it to relieve the compression; the fissure water is collected through the closed layer and prevented from settling and crystallizing at the bottom of the pipeline, thereby avoiding the effect of crystallization blockage of the fissure water during the discharge process. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a structural schematic diagram of the longitudinal drainage blind pipe of the utility model.
[0026] Figure 2 It is a schematic cross-sectional view of the longitudinal drainage blind pipe of the utility model.
[0027] Figure 3 It is a schematic diagram of the surface layer of the double-layer structure of the utility model.
[0028] Figure 4 It is a schematic diagram of the outer layer of the annular curved rib surface of the utility model.
[0029] Figure 5 It is a schematic diagram of the inner layer annular curved rib surface of the utility model.
[0030] Description of the symbols in the accompanying drawings: circumferential curved mesh rib structure 1, curved rib buds 11, curved ribs 12, outer layer circumferential curved rib surface layer 2, outer layer curved rib buds 21, outer layer curved ribs 22, inner layer circumferential curved rib surface layer 3, inner layer curved rib buds 31, inner layer curved ribs 32, sealed layer 4, water-permeable holes 5. DETAILED DESCRIPTION
[0031] 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.
[0032] Example
[0033] like Figure 1-5As shown, this embodiment adopts a two-color double-layer semi-permeable anti-crystallization drainage pipe, which includes a longitudinal drainage blind pipe, which is used to connect the annular drainage blind pipe arranged behind the tunnel lining and guide the discharge of fissure water. The longitudinal drainage blind pipe is a double-layer structure, which includes a double-layer annular curved mesh rib structure 1 and a sealing layer 4 arranged at the bottom thereof. The annular curved mesh rib structure 1 includes an outer annular curved rib surface layer 2 and an inner annular curved rib surface layer 3 that overlap each other, and a water-permeable hole 5 is formed between the two. The sealing layer 4 is used to seal the water-permeable hole 5 located at the bottom of the annular curved mesh rib structure 1.
[0034] In this embodiment, the longitudinal drainage blind pipe plays a connecting role in the tunnel drainage system. It is connected to the annular drainage blind pipe behind the tunnel lining and is also connected to the transverse water diversion pipe connected to the tunnel drainage ditch. The annular drainage blind pipe is used to collect the fissure water behind the tunnel lining, and the transverse water diversion pipe is used to guide the fissure water to the tunnel drainage ditch to complete the discharge of groundwater.
[0035] The double-layer structure is used to support the pressure of the tunnel support structure construction load or deformation during operation, thereby extending the service life of the longitudinal drainage blind pipe. The double-layer structure is made of high-density polyethylene material.
[0036] The water-permeable holes 5 are formed by the curved rib buds 11 and the curved ribs 12 . The water-permeable holes 5 are rhombus-like, oblong, or elliptical, and are evenly distributed on the annular curved mesh rib structure 1 .
[0037] In this embodiment, the curved rib buds 11 and the curved ribs 12 together form the water-permeable hole 5, the curved ribs 12 form the two sides of the water-permeable hole 5, the curved rib buds 11 are arranged at both ends of the curved ribs 12 on both sides, and the high-density polyethylene material of the double-layer structure is welded with the curved rib buds 11 and the curved ribs 12 at high temperature to form the annular curved mesh rib structure 1 with a stable structure, strong bending resistance and good water permeability.
[0038] In this embodiment, the width of the curved ribs 12 is 6 mm, and the spacing between them along the circumferential direction is 8.1 mm.
[0039] The outer circumferential curved rib surface layer 2 includes outer circumferential curved rib buds 21 and outer circumferential curved ribs 22 . The outer circumferential curved ribs 22 are arranged at equal intervals on the outer wall of the circumferential curved mesh rib structure 1 along the circumferential direction.
[0040] The inner layer circumferential curved rib surface layer 3 includes inner layer curved rib buds 31 and inner layer curved ribs 32 . The inner layer curved ribs 32 are arranged at equal intervals along the circumferential direction on the inner wall of the circumferential curved mesh rib structure 1 .
[0041] In this embodiment, the outer layer of the circumferential curved mesh rib surface layer and the inner layer of the circumferential curved mesh rib surface layer are firstly made separately, and then the two are welded at high temperature to form the circumferential curved mesh rib structure 1. The outer layer of curved rib buds 21, the outer layer of curved ribs 22, the inner layer of curved rib buds 31, and the inner layer of curved ribs 32 are all made of high-density polyethylene material.
[0042] The sealing layer 4 includes a welding base layer and a nano coating. The welding base layer is welded to the inner annular curved rib surface layer 3. The nano coating is sprayed on the welding base layer to form an anti-sticking inner wall.
[0043] In this embodiment, the sealing layer 4 is used to improve the hydrophobicity and anti-stickiness to prevent the fissure water from settling and crystallizing at the bottom of the pipeline, causing the pipeline to be blocked and affecting the service life of the pipeline.
[0044] The surface area covered by the welded base layer is 1 / 4 of the inner surface area of the annular curved mesh rib structure 1 .
[0045] The fusion bonding base layer is a polyethylene layer.
[0046] The thickness of the nano coating is 0.3 mm.
[0047] In this embodiment, the welding base layer is welded within 90° of the bottom inner wall of the annular curved mesh rib structure 1, the total arc length of the welding base layer is 86.4 mm, the welding base layer is made of polyethylene material, and the welding base layer is polished smooth, and the nano coating is applied on the polished smooth inner wall, and the thickness of the nano coating is 0.3 mm.
[0048] The double-layer structure is a high-density polyethylene structure.
[0049] In this embodiment, the double-layered annular curved mesh rib structure 1 is a high-density polyethylene structure.
[0050] The longitudinal drainage blind pipe is a circular pipe body, a plurality of circular pipe bodies are connected in series along the tunnel, and special glue and non-woven fabric are provided at the connection points.
[0051] In this embodiment, the longitudinal drainage blind pipe is a circular pipe with an outer diameter of 110 mm. The anti-crystallization circular pipe is laid after the initial support of the tunnel construction and before the waterproof board, and multiple circular pipes are connected in series along the length of the tunnel. Special glue is used to bond the joints of each circular pipe and wrapped with non-woven fabric. The laying length should ensure that the annular drainage pipe and the horizontal water diversion pipe in the tunnel are fully connected.
[0052] 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 two-color, double-layer, semi-permeable, anti-crystallization drainage pipe, characterized in that: It comprises a longitudinal drainage blind pipe, which is used to connect with the annular drainage blind pipe arranged behind the tunnel lining and guide the discharge of fissure water. The longitudinal drainage blind pipe is a double-layer structure, which comprises a double-layer annular curved mesh rib structure and a sealing layer arranged at the bottom thereof. The annular curved mesh rib structure comprises an outer annular curved rib surface layer and an inner annular curved rib surface layer which overlap each other, and a water-permeable hole is formed between the two. The sealing layer is used to seal the water-permeable hole at the bottom of the annular curved mesh rib structure.
2. A two-color double-layer semi-permeable anti-crystallization drainage pipe according to claim 1, characterized in that: The water-permeable holes are formed by the curved rib buds and the curved ribs. The water-permeable holes are rhombus-like, oblong or elliptical and are evenly distributed on the annular curved mesh rib structure.
3. A two-color double-layer semi-permeable anti-crystallization drainage pipe according to claim 1, characterized in that: The outer layer of circumferential curved rib surface layer includes outer layer curved rib buds and outer layer curved ribs, and the outer layer curved ribs are arranged at equal intervals along the circumferential direction.
4. A two-color double-layer semi-permeable anti-crystallization drainage pipe according to claim 2, characterized in that: The inner layer circumferential curved rib surface layer includes inner layer curved rib buds and inner layer curved ribs, and the inner layer curved ribs are arranged at equal intervals along the circumferential direction.
5. A two-color double-layer semi-permeable anti-crystallization drainage pipe according to claim 1, characterized in that: The sealing layer includes a welding base layer and a nano coating, wherein the welding base layer is welded to the surface layer of the inner annular curved ribs, and the nano coating is sprayed on the welding base layer to form an anti-sticking inner wall.
6. A two-color double-layer semi-permeable anti-crystallization drainage pipe according to claim 5, characterized in that: The surface area covered by the welded base layer is 1 / 4 of the inner surface area of the annular curved mesh rib structure.
7. A two-color double-layer semi-permeable anti-crystallization drainage pipe according to claim 5, characterized in that: The fusion bonding base layer is a polyethylene layer.
8. A two-color, double-layer, semi-permeable, anti-crystallization drainage pipe according to any one of claims 5 to 7, characterized in that: The thickness of the nano coating is 0.3 mm.
9. A two-color, double-layer, semi-permeable, anti-crystallization drainage pipe according to claim 1, characterized in that: The double-layer structure is a high-density polyethylene structure.
10. A two-color, double-layer, semi-permeable, anti-crystallization drainage pipe according to any one of claims 1 to 7 or 9, characterized in that: The longitudinal drainage blind pipe is a circular pipe body, a plurality of circular pipe bodies are connected in series along the tunnel, and special glue and non-woven fabric are provided at the connection points.