CN215714289U - High-speed railway seal coat expansion joint sealing rod and stagnant water structure - Google Patents
High-speed railway seal coat expansion joint sealing rod and stagnant water structure Download PDFInfo
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- CN215714289U CN215714289U CN202121920237.3U CN202121920237U CN215714289U CN 215714289 U CN215714289 U CN 215714289U CN 202121920237 U CN202121920237 U CN 202121920237U CN 215714289 U CN215714289 U CN 215714289U
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Abstract
The utility model provides a high-speed rail sealing layer expansion joint water stop strip and a water stop structure. The water stop strip is made of rubber and comprises a strip-shaped body, the top of the body is fixedly connected with a plug, and the left side and the right side of the plug are respectively provided with a plane for being stuck to the side walls of the expansion joints; the left side surface and the right side surface of the body are respectively fixedly connected with a water stop rib which extends along the length direction of the body; one end of the water stop rib, which is far away from the body, is provided with a plane which is used for being stuck with the side wall of the expansion joint. Compared with the prior art, the water stop strip provided by the utility model has the advantages that the top is provided with the plug, the two sides are provided with the water stop ribs, the water stop strip is provided with the multilayer water stop barriers, the water stop strip is embedded into the expansion joint, the plug and the water stop ribs are adhered to the side wall of the expansion joint, and rainwater can be effectively prevented from permeating into the expansion joint; the high elasticity and the scalability of the rubber material are combined, the differential deformation of concrete structures on two sides of the expansion joint is adapted, and the service durability of the roadbed is improved.
Description
Technical Field
The utility model relates to the technical field of high-speed rail water prevention, in particular to a water stop strip for an expansion joint of a high-speed rail sealing layer and a water stop structure.
Background
The longitudinal expansion joints are required to be reserved in the construction process of pouring concrete successively on the high-speed railway ballastless track base plate and the road shoulder sealing layer, so that the transverse expansion joints are required to be arranged when the sealing layer is poured for preventing the swelling and cracking of the road foundation sealing layer, and the leakage problem can be caused if the treatment measures at the joint parts of the expansion joints are improper. Due to natural precipitation, rainwater on the track slab and the road shoulder flows into the foundation plate and the foundation bed at the bottom of the closed layer through the expansion joints, under the repeated suction action of dynamic loads of the train, fine particles in graded broken stones on the surface layer of the foundation bed flow out through the expansion joints of the foundation plate, the foundation plate and the expansion joints of the closed layer of the road shoulder to form slurry overflow diseases, and when more rainwater is collected, the problems of uneven settlement of the roadbed can be caused, so that the operation stability and the safety of the train are seriously influenced.
The arrangement of a water stopping measure at an expansion joint is a common measure for preventing the leakage problem of the joint, at present, the expansion joint of a high-speed rail closed layer mostly adopts a caulking measure (see figure 4) of top sealing glue and bottom polyethylene foam board filling, specifically, the closed layers at two sides of a road shoulder are made of C25 fiber concrete, the expansion joint is longitudinally arranged along a line between ballastless track supporting layers of a C25 fiber concrete closed layer, the joint is 10mm wide, the upper part of the expansion joint is closed by silicone caulking glue, the lower part of the expansion joint is filled by polyethylene foam boards (different design houses are different in seam width, silicone caulking glue and polyethylene foam board thickness and height design), and the height of the caulking glue and the polyethylene foam boards can be adjusted according to conditions in frost heaving areas. However, in the using process, a large amount of sealant degumming and cracking problems occur due to the aging of the sealant material, the waterproof and sealing effects are invalid, the problems of slurry bleeding and uneven settlement occur frequently, and the long-term service of the roadbed is seriously influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defect that the service durability of the roadbed is affected due to the failure of a water stopping measure of the expansion joint in the prior art, the utility model aims to provide the water stopping strip for the expansion joint of the high-speed rail sealing layer, which can effectively prevent rainwater from permeating into the roadbed through the expansion joint and improve the service durability of the roadbed.
The water stop strip for the expansion joint of the high-speed rail sealing layer is made of rubber and comprises a strip-shaped body, wherein the top of the body is fixedly connected with a plug, and the left side and the right side of the plug are respectively provided with a plane for being stuck with the side wall of the expansion joint; the left side surface and the right side surface of the body are respectively fixedly connected with a water stop rib, and the water stop ribs extend along the length direction of the body; one end of the water stop rib, which is far away from the body, is provided with a plane which is used for being stuck to the side wall of the expansion joint.
The top of the water stop strip is provided with the plug, and the two sides of the water stop strip are provided with the water stop ribs, so that the water stop strip is provided with multiple water stop barriers, and the two sides of the plug and the water stop ribs are adhered to the side wall of the expansion joint, so that rainwater can be effectively prevented from infiltrating into the expansion joint; the high elasticity and the scalability of the rubber material are combined, the differential deformation of concrete structures on two sides of the expansion joint is adapted, and the service durability of the roadbed is improved. The side surface of the plug and the far end of the water stop rib are arranged to be planes, so that the plug and the far end of the water stop rib can be conveniently adhered to the side wall of the base plate; meanwhile, the sticking area can be effectively increased, so that the sticking is firmer.
Preferably, the cross section of the water stop rib is arc-shaped; the design can improve the anti-extrusion and tensile capacity of the water stop rib, thereby improving the overall anti-extrusion and tensile capacity of the water stop bar, adapting to the differential deformation of concrete structures on two sides of the expansion joint, and improving the service durability of the roadbed.
Preferably, the water stop rib is inclined towards the top of the body; the water stop ribs inclined upwards can prevent water permeating the expansion joints from entering the roadbed downwards. In addition, enclose between stagnant water rib and the body and close and form the water drainage tank, can flow into the expansion joint outer end along the water drainage tank when rainwater flows into the expansion joint, further flow into in the road bed drainage channel.
Preferably, the water stop strip is made of high-strength anti-aging rubber, such as ethylene propylene diene monomer rubber, non-vulcanized butyl rubber and the like; the high-strength anti-aging rubber is used for manufacturing the water stop strip, so that the service life of the water stop strip can be prolonged, and the service durability of the roadbed is improved.
Preferably, the body and the water stop rib are integrally formed; the body and the water stop rib are connected more stably without connecting seams and are not easy to break. In other embodiments, the water stop rib may be fixedly connected to the body by welding.
Preferably, at least two water stop ribs are fixedly connected to the left side surface of the body; at least two water stop ribs are fixedly connected to the right side face of the body. The number of the water stop ribs can be increased to increase the adhering area of the water stop strips and the side wall of the expansion joint, and multiple water stop barriers are built, so that the waterproof capacity of the water stop strips is improved.
The utility model also provides a water stop structure for the expansion joint of the high-speed rail sealing layer, wherein the expansion joint is formed between a first structure and a second structure which are poured by concrete, the water stop structure comprises the water stop strip for the expansion joint of the high-speed rail sealing layer, the water stop strip is arranged in the expansion joint and extends along the length direction of the expansion joint, the planes on the left side and the right side of the plug are respectively adhered to two side walls of the expansion joint, and the water stop ribs on the two sides of the body are respectively extruded and adhered to the two side walls of the expansion joint through the planes on the water stop ribs.
By arranging the water stop strip in the expansion joint, the two sides of the plug and the end face of the water stop rib are adhered to the side wall of the expansion joint, so that rainwater can be effectively prevented from infiltrating into the expansion joint; the high elasticity and the scalability of the rubber water stop strip are combined, the differential deformation of concrete structures on two sides of the expansion joint is adapted, and the service durability of the roadbed is improved.
Preferably, the top surface of the plug is flush with the top surface of the expansion joint; the water stop structure only needs to stick the water stop belt in the expansion joint, and has simple structure and convenient construction.
Preferably, the top surface of the plug is lower than the top surface of the expansion joint, and the expansion joint above the plug is filled with elastic epoxy mortar to form an elastic epoxy mortar layer. The elastic epoxy mortar layer has a protection effect on the water stop strip, and the anti-aging effect of the water stop strip is improved. And when the elastic epoxy mortar layer is broken, diluted elastic epoxy mortar can be directly poured on the damaged elastic epoxy mortar layer for repairing, and the elastic epoxy mortar layer is not required to be completely dismantled and poured again, so that the repairing is convenient.
Preferably, the first structure is a closed layer and the second structure is a base plate; or the first structure and the second structure are two adjacent closed layers.
Compared with the prior art, the water stop strip and the water stop structure provided by the utility model have the advantages that the water stop strip is fixed in the expansion joint in a sticking mode, rainwater is effectively prevented from permeating, the high elasticity and the scalability of the rubber water stop strip are combined, the differential deformation of concrete structures on two sides of the expansion joint is adapted, and the service durability of a roadbed is improved.
The water stopping structure can be used in an expansion joint of a newly built ballastless track of a high-speed railway, and can also be used for replacing damaged water stopping measures in the expansion joint, such as measures of sealing glue at the top of the expansion joint and filling a polyethylene foam board at the bottom of the expansion joint, when the water stopping structure is replaced, the polyethylene foam board and the sealing glue are cleaned up, base glue is smeared on two sides of the expansion joint, and the water stopping strips are extruded and embedded in the expansion joint, so that planes on the left side and the right side of the plug are respectively stuck to two side walls of the expansion joint, and a plane on one end, far away from the body, of each water stopping rib is extruded and stuck to the side wall of the expansion joint, and the water stopping structure is simple in construction process and convenient to operate.
The water stopping structure provided by the utility model does not need to fill sealant in the expansion joint, solves the problem that the material cost of the existing water stopping measure using silicone material as sealant is higher, and also solves the problems that the service part maintenance cost is increased, the quality control difficulty of the construction process is high, the interface of the expansion joint is not cleaned completely, the adhesion effect of the sealant is easily influenced, the separation is caused and the like due to the short effective service period of the sealant and the high-frequency maintenance.
The features mentioned above can be combined in various suitable ways or replaced by equivalent features as long as the object of the utility model is achieved.
Drawings
The utility model will be described in more detail hereinafter on the basis of non-limiting examples only and with reference to the accompanying drawings. Wherein:
fig. 1 is a schematic structural view of a water stop strip for an expansion joint of a high-speed rail sealing layer according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an expansion joint water stop structure of a high-speed rail sealing layer according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an expansion joint water stop structure of a high-speed rail sealing layer according to another embodiment of the present invention;
fig. 4 is a schematic view of a conventional water stopping structure for a longitudinal expansion joint.
Description of reference numerals:
1. a body; 2. a plug; 3. a water stop rib; 4. an expansion joint; 5. a sealing layer; 6. a base plate; 7. an elastic epoxy mortar layer; 8. a water stop bar; 21. 31, plane surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and more complete, the following technical solutions of the present invention will be described in detail, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the specific embodiments of the present invention belong to the protection scope of the present invention.
The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be intervening devices between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.
All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As shown in fig. 1, the water stop strip 8 is a strip structure, and includes a body 1, a plug 2, and a water stop rib 3. The body 1 is strip-shaped, the top of the body 1 is fixedly connected with a plug 2, and the left side surface and the right side surface of the body 1 are respectively fixedly connected with a water stop rib 3.
The bottom of end cap 2 and the top fixed connection of body 1, the top of end cap 2 has the top surface, and this top surface is preferred a plane, makes the difficult top of gathering at sealing rod 8 of water above expansion joint 4, reduces the risk that water permeates the road bed by expansion joint 4. The left side and the right side of the plug 2 are respectively provided with a plane 21 used for being pasted with the side wall of the expansion joint 4, the plane 21 is convenient for being pasted with the side wall of the expansion joint 4, the pasting area can be effectively increased, and the pasting is firmer. The plug 2 is a first heavy water barrier of the stopper bar 8, and the width of the cross section of the plug 2 is larger than that of the cross section of the body 1. In fig. 1, the cross section of the plug 2 is funnel-shaped, and in other embodiments, the cross section of the plug 2 may also be rectangular.
The water stop rib 3 extends along the length direction of the body 1; one end of the water stop rib 3 is fixedly connected to the side surface of the body 1; the other end of the water stop rib 3 is far away from the body 1, the end face of one end far away from the body 1 is a plane 31, and the plane 31 is used for being stuck with the side wall of the expansion joint 4, so that the sticking area can be effectively increased, and the sticking is firmer.
Through the quantity that increases the stagnant water rib 3 on the 8 sides of sealing rod, can further increase the adhesion area of sealing rod 8 and 4 lateral walls at expansion joint, establish multiple stagnant water barrier to improve sealing rod 8's waterproof ability. In fig. 1, two water stop ribs 3 are fixedly connected to the left side surface and the right side surface of the water stop strip 8 at intervals, so that a double impermeable barrier is formed. Optionally, the number of the water stop ribs 3 may be one or more, and when the number of the water stop ribs 3 is plural, the plural water stop ribs 3 are fixedly connected to the same side of the body 1 at intervals.
Preferably, the cross section of the water stop rib 3 is arc-shaped, so that the flexibility of the water stop rib 3 can be improved, and the anti-extrusion tensile capacity of the water stop rib 3 is improved, so that the overall anti-extrusion tensile capacity of the water stop strip 8 is improved, the water stop strip can adapt to the differential deformation of concrete structures on two sides of the expansion joint 4, and the service durability of a roadbed is improved.
The water stopping ribs 3 are all inclined towards the top of the body 1, and the water permeating into the expansion joints 4 can be prevented from entering the roadbed downwards by the water stopping ribs 3 which are inclined upwards. In addition, enclose between the stagnant water rib 3 of tilt up and the body 1 and close and form the water drainage tank, can flow into expansion joint 4 outer end along the water drainage tank when rainwater flows into expansion joint 4, further flow into in the road bed drainage channel.
The water stop strip 8 is preferably a rubber water stop strip 8 made of rubber materials, and the rubber water stop strip 8 has high elasticity and elasticity, can be tightly adhered to concrete on two sides of the expansion joint 4, and can adapt to differential deformation of concrete structures on two sides of the expansion joint 4. Further preferably, the water stop strip 8 is preferably made of high-strength anti-aging rubber, so that the water stop strip 8 has both strong deformability and high fatigue resistance, thereby ensuring the bonding ability with concrete and the waterproof effect and durability in use.
The water stop strip 8 provided by the utility model can be applied to the expansion joint 4 of the high-speed rail closed layer 5 to form a water stop structure (hereinafter referred to as a water stop structure) of the expansion joint of the high-speed rail closed layer for preventing water from permeating into a roadbed from the expansion joint 4, and the expansion joint 4 of the high-speed rail closed layer 5 is formed between the base plate 6 and the closed layer 5 which are poured by concrete and between two adjacent closed layers 5.
As shown in fig. 2, the expansion joint 4 is a longitudinal expansion joint 4 formed between the base plate 6 and the sealing layer 5, the water stopping structure includes a water stopping strip 8 which is squeezed and embedded in the expansion joint 4, and the extending direction of the water stopping strip 8 is consistent with the length direction of the expansion joint 4. The top surface of the plug 2 at the top of the water stop strip 8 is flush with the top surface of the expansion joint 4, and the planes 21 on the left side and the right side of the plug 2 are respectively adhered to two side walls of the expansion joint 4; the plane 31 of one end of the water stop rib 3 far away from the body 1 is pressed and stuck on the side wall of the expansion joint 4. The water stop ribs 3 on the left side and the right side of the water stop strip 8 are in a squeezed state, so that the water stop ribs 3 can be in a stable pressed seepage-proofing state.
As shown in fig. 3, the expansion joint 4 is a longitudinal expansion joint 4 formed between the base plate 6 and the sealing layer 5, the water stopping structure includes a water stopping strip 8 which is squeezed and embedded in the expansion joint 4, and the extending direction of the water stopping strip 8 is consistent with the length direction of the expansion joint 4. The top surface of the plug 2 at the top of the water stop bar 8 is lower than the top surface of the expansion joint 4. The planes 21 on the left side and the right side of the plug 2 are respectively adhered to the two side walls of the expansion joint 4; the plane 31 of one end of the water stop rib 3 far away from the body 1 is pressed and stuck on the side wall of the expansion joint 4. The water stop ribs 3 on the left side and the right side of the water stop strip 8 are in a squeezed state, so that the water stop ribs 3 can be in a stable pressed seepage-proofing state. The expansion joint 4 above the plug 2 is filled with elastic epoxy mortar to form an elastic epoxy mortar layer 7, and the elastic epoxy mortar layer 7 has a protection effect on the water stop strip 8, so that the anti-aging effect of the water stop strip 8 is improved. Moreover, when the elastic epoxy mortar layer 7 is broken, diluted elastic epoxy mortar can be directly poured on the damaged elastic epoxy mortar layer 7 for repairing, the elastic epoxy mortar layer 7 does not need to be completely removed and poured again, and the repairing is convenient.
The plug 2 and the water stop rib 3 can be adhered to the side wall of the expansion joint 4 through an adhesive; the adhesive can be epoxy resin adhesive.
Finally, it should be noted that: the above embodiments and examples are only used to illustrate the technical solution of the present invention, but not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments and examples, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments or examples may still be modified, or some of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments or examples of the present invention.
Claims (10)
1. The water stop strip for the expansion joint of the high-speed rail sealing layer is characterized by being made of rubber and comprising a strip-shaped body, wherein a plug is fixedly connected to the top of the body, and planes for being stuck to the side wall of the expansion joint are respectively arranged on the left side and the right side of the plug; the left side surface and the right side surface of the body are respectively fixedly connected with a water stop rib, and the water stop ribs extend along the length direction of the body; one end of the water stop rib, which is far away from the body, is provided with a plane which is used for being stuck to the side wall of the expansion joint.
2. The sealing strip for expansion joints of high-speed rail enclosed layers as claimed in claim 1, wherein the cross section of the sealing rib is arc-shaped.
3. The sealing strip for expansion joints of high-speed rail enclosed layers as claimed in claim 1, wherein the sealing ribs are inclined toward the top of the body.
4. The sealing strip for expansion joints of high-speed rail sealing layers as claimed in claim 1, wherein the sealing strip is made of high-strength anti-aging rubber.
5. The sealing strip for expansion joints of high-speed rail enclosed layers as claimed in claim 4, wherein the body and the sealing rib are integrally formed.
6. The sealing strip for the expansion joint of the high-speed rail sealing layer as claimed in any one of claims 1 to 5, wherein at least two sealing ribs are fixedly connected to the left side surface of the body; at least two water stop ribs are fixedly connected to the right side face of the body.
7. A high-speed railway seal floor expansion joint stagnant water structure, the expansion joint forms between the first structure of pouring by concrete and second structure, characterized in that, the stagnant water structure includes the high-speed railway seal floor expansion joint sealing rod of any one of claims 1-6, the sealing rod sets up in the expansion joint and extends along the length direction of expansion joint, the plane of end cap left and right sides pastes respectively two lateral walls at the expansion joint, the stagnant water rib of body both sides passes through the plane on the stagnant water rib and extrudees respectively to paste on two lateral walls at the expansion joint.
8. The water stop structure for expansion joints of high-speed rail sealing layers as claimed in claim 7, wherein the top surface of the plug is flush with the top surface of the expansion joint.
9. The water stop structure for the expansion joint of the high-speed rail sealing layer as claimed in claim 7, wherein the top surface of the plug is lower than the top surface of the expansion joint, and the expansion joint above the plug is filled with elastic epoxy mortar to form an elastic epoxy mortar layer.
10. The high-speed rail sealing layer expansion joint water stopping structure as claimed in claim 7, wherein the first structure is a sealing layer, and the second structure is a base plate; or the first structure and the second structure are two adjacent closed layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121920237.3U CN215714289U (en) | 2021-08-16 | 2021-08-16 | High-speed railway seal coat expansion joint sealing rod and stagnant water structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121920237.3U CN215714289U (en) | 2021-08-16 | 2021-08-16 | High-speed railway seal coat expansion joint sealing rod and stagnant water structure |
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| Publication Number | Publication Date |
|---|---|
| CN215714289U true CN215714289U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121920237.3U Active CN215714289U (en) | 2021-08-16 | 2021-08-16 | High-speed railway seal coat expansion joint sealing rod and stagnant water structure |
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| CN (1) | CN215714289U (en) |
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2021
- 2021-08-16 CN CN202121920237.3U patent/CN215714289U/en active Active
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