CN216838960U - Water conservancy project water delivery aqueduct expansion joint trigeminy stagnant water structure - Google Patents
Water conservancy project water delivery aqueduct expansion joint trigeminy stagnant water structure Download PDFInfo
- Publication number
- CN216838960U CN216838960U CN202220500626.9U CN202220500626U CN216838960U CN 216838960 U CN216838960 U CN 216838960U CN 202220500626 U CN202220500626 U CN 202220500626U CN 216838960 U CN216838960 U CN 216838960U
- Authority
- CN
- China
- Prior art keywords
- aqueduct
- expansion joint
- water
- epoxy mortar
- mortar layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model discloses a water conservancy project water delivery aqueduct expansion joint trigeminy stagnant water structure, the end of aqueduct inner wall forms the rectangular notch of step form, the expansion joint between the adjacent aqueduct is embedded to be equipped with the obturator plate of bending into the U-shaped, obturator plate opening one end is up, the one end of bending is down, the left surface of obturator plate hugs closely the terminal surface of left side aqueduct, the right surface of obturator plate hugs closely the terminal surface of right side aqueduct, the obturator plate upper end is less than the rectangular notch bottom, the expansion joint above the obturator plate is filled with the sealant and forms the sealing glue layer, the sealing glue layer bottom is connected the obturator plate upper end, the upper portion is parallel and level with rectangular notch bottom; the upper surface of the rectangular notch is coated with an epoxy mortar layer, the upper surface of the epoxy mortar layer is flush with the inner wall of the aqueduct, and the end part of the epoxy mortar layer is flush with the head end of the aqueduct; a waterstop is pre-embedded in the epoxy mortar layer, one end of the waterstop is pre-embedded and fixed in the epoxy mortar layer on the left side of the expansion joint, the other end of the waterstop is pre-embedded and fixed in the epoxy mortar layer on the right side of the expansion joint, and the center of the waterstop protrudes upwards.
Description
Technical Field
The utility model belongs to the technical field of the prevention of seepage, concretely relates to aqueduct construction expansion joint prevention of seepage field, more specifically relates to a hydraulic engineering water delivery aqueduct expansion joint trigeminy stagnant water structure.
Background
Aqueduct is also called elevated canal and water transportation bridge, which is a group of water transportation system composed of bridge and canal system, and is usually erected on valleys, depression, rivers and roads for water transportation and traffic. In recent years, with the continuous development of water resource allocation and hydraulic engineering in China, the application of a large-scale aqueduct in practice is more and more extensive, and the safety and durability of the hydraulic engineering are directly influenced by the expansion joint water stopping technology.
The pier top of the large aqueduct is greatly displaced under the action of load, and particularly under the action of earthquake load, collision or transverse displacement can be caused among aqueduct body spans and between the aqueduct and the abutment back wall due to the difference of vibration periods of all piers. Therefore, enough expansion joint width needs to be reserved between the main structures of the large aqueducts, and the expansion joints need to have multidirectional displacement adaptability, namely the large aqueducts need to have multidirectional and large-amplitude displacement expansion joints. The existing expansion joint is mainly treated by filling asphalt hemp ropes, but the asphalt hemp ropes are easy to fall off, and the existing expansion joint has more water leakage channels and is difficult to meet the engineering requirements. And the expansion joint is difficult to realize the timely leaking stoppage after the serious water leakage condition occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve current aqueduct expansion joint and leak easily, and the expansion joint is difficult to realize the problem of in time leaking stoppage after the serious condition of leaking appears, for this reason the utility model provides a hydraulic engineering water delivery aqueduct expansion joint trigeminy stagnant water structure.
The technical scheme of the utility model as follows:
a water conservancy project water delivery aqueduct expansion joint trigeminy stagnant water structure, the end of the stated aqueduct inboard wall forms the step-like rectangular notch, the rectangular notch is lower than the inboard wall of aqueduct, the upper surface of rectangular notch is wrapped up with the steel band, the steel band is hugged closely the inboard wall of aqueduct, the steel band is fixed through pouring the embedded steel bar fixed in aqueduct;
when the aqueducts are connected, a closed pore plate bent into a U shape is embedded in an expansion joint between the adjacent aqueducts, one end of an opening of the closed pore plate is upward, one end of the opening of the closed pore plate is downward, the left side surface of the closed pore plate is tightly attached to the end surface of the aqueduct on the left side, the right side surface of the closed pore plate is tightly attached to the end surface of the aqueduct on the right side, the upper end of the closed pore plate is lower than the bottom of the rectangular notch, sealant is filled in the expansion joint above the closed pore plate to form a sealant layer, and the bottom of the sealant layer is connected with the upper end of the closed pore plate, and the upper part of the sealant layer is flush with the bottom of the rectangular notch;
the upper surface of the rectangular notch is coated with an epoxy mortar layer, the upper surface of the epoxy mortar layer is flush with the inner wall of the aqueduct, and the end part of the epoxy mortar layer is flush with the head end of the aqueduct; the water stop is embedded in the epoxy mortar layer, one end of the water stop is embedded and fixed in the epoxy mortar layer on the left side of the expansion joint, the other end of the water stop is embedded and fixed in the epoxy mortar layer on the right side of the expansion joint, and the center of the water stop protrudes upwards.
Further, the sealant is a two-component polyurethane sealant.
Further, the waterstop is a U-shaped rubber ribbed waterstop.
Furthermore, asphalt hemp ropes are filled in the closed pore plates.
The beneficial effects of the utility model reside in that:
1. the uppermost layer of the utility model adopts the epoxy mortar layer to fix the water stop, and the epoxy mortar layer has high hardness, abrasion resistance, excellent waterproof performance and prolonged service life; a flexible water stop belt is connected between the two epoxy mortar layers, and when the expansion joint of the aqueduct is expanded due to displacement, the water stop belt can be stretched or compressed along with the expansion joint, so that the sealing performance is ensured;
2. the sealing glue layer plays a second sealing role, and the double-component polyurethane sealant has better elasticity and excellent anti-stripping performance and can prevent falling off; meanwhile, when the width of the expansion joint is changed, the volume of the sealing adhesive layer can be elastically changed along with the change of the width of the expansion joint, so that a gap between the sealing adhesive layer and the expansion joint is prevented;
3. the closed pore plate plays a third sealing role, and because the closed pore plate is bent into a U shape and is in a pressed state, the left side and the right side of the closed pore plate can be tightly attached to the concrete wall surface of the expansion joint; in addition, the pressed closed pore plate has good elasticity, and when the width of the expansion joint is changed, the closed pore plate can be synchronously changed along with the change of the width of the expansion joint, so that the closed pore plate is ensured to be always tightly attached to the expansion joint, the sealing effect is ensured, and the closed pore plate is prevented from falling off from the expansion joint;
4. the utility model greatly improves the sealing performance and reduces the risk of water seepage of the expansion joint of the aqueduct through the triple sealing of the water stop belt, the sealing glue layer and the closed pore plate;
5. a temporary pouring cavity is formed in a cavity between the water stop belt and the sealing adhesive layer, and when the expansion joint is seriously leaked, a water stop material can be injected into the cavity between the water stop belt and the sealing adhesive layer to realize temporary plugging; after the water delivery aqueduct stops delivering water, the expansion joint overhaul operation is carried out, thereby being greatly convenient for the on-site plugging operation.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention;
in the figure: 1-expansion joint, 2-rectangular notch, 3-steel band, 4-embedded steel bar, 5-closed pore plate, 6-sealant layer, 7-water stop, 8-epoxy colored sand layer and 9-asphalt hemp rope.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in figure 1, the water delivery aqueduct expansion joint triple water stop structure for the hydraulic engineering is characterized in that a step-shaped rectangular notch 2 is formed in the end of the inner wall of the aqueduct, the rectangular notch 2 is lower than the inner wall of the aqueduct by 5-7cm, a thin steel strip 3 wraps the upper surface of the rectangular notch 2, the steel strip 3 is tightly attached to the inner wall of the aqueduct, and the steel strip 3 is fixed through embedded steel bars 4 which are poured and fixed in the aqueduct. The steel belt 3 has the main functions of providing a repeated maintenance operation surface for the water stop structure at the end of the expansion joint, preventing the concrete at the end of the aqueduct from being damaged and protecting the end of the aqueduct.
When the aqueducts are connected, a closed pore plate 5 bent into a U shape is embedded in an expansion joint 1 between the adjacent aqueducts, one end of an opening of the closed pore plate 5 faces upwards, one end of the closed pore plate 5 bends downwards, the left side surface of the closed pore plate 5 is tightly attached to the end surface of the aqueduct on the left side, the right side surface of the closed pore plate 5 is tightly attached to the end surface of the aqueduct on the right side, the upper end of the closed pore plate 5 is lower than the bottom of the rectangular notch 2, and an asphalt hemp rope 10 is filled in a U-shaped cavity of the closed pore plate 5. The expansion joint 1 above the closed pore plate 5 is filled with double-component polyurethane sealant to form a sealing adhesive layer 6, the bottom of the sealing adhesive layer 6 is connected with the upper end of the closed pore plate 5, the upper part of the sealing adhesive layer 6 is flush with the bottom of the rectangular notch 2, and the left side surface and the right side surface of the sealing adhesive layer 6 are respectively tightly attached to the end surface of the left aqueduct and the end surface of the right aqueduct to form sealing.
The upper surface of the rectangular notch 2 is coated with an epoxy mortar layer 8, the upper surface of the epoxy mortar layer 8 is flush with the inner wall of the aqueduct, and the end part of the epoxy mortar layer 8 is flush with the head end of the aqueduct. The water stop belts 7 are pre-buried in the epoxy mortar layer 8, the water stop belts 7 are U-shaped rubber water stop belts with ribs, the central diameter of each U-shaped rubber water stop belt is not less than 40mm, and the number of the ribs on each side of each water stop belt 7 is not less than 2. In the pre-buried epoxy mortar layer 8 that is fixed in the left epoxy mortar layer 8 in expansion joint 1 of waterstop 7 one end, the other end is pre-buried to be fixed in the epoxy mortar layer 8 on expansion joint 1 right side, and waterstop 7 center is upwards protruding.
A temporary pouring cavity is formed in a cavity between the water stop belt 7 and the sealing adhesive layer 6, and when the expansion joint 1 is seriously leaked, a water stop material can be injected into the cavity between the water stop belt 7 and the sealing adhesive layer 6 to realize temporary plugging; after the upstream gate is closed, the expansion joint overhaul operation is carried out, and the on-site operation is greatly facilitated.
Claims (4)
1. The water delivery aqueduct expansion joint triple water stop structure for the hydraulic engineering is characterized in that a step-shaped rectangular notch (2) is formed in the end of the inner wall of the aqueduct, the rectangular notch (2) is lower than the inner wall of the aqueduct, a steel belt (3) wraps the upper surface of the rectangular notch (2), the steel belt (3) is tightly attached to the inner wall of the aqueduct, and the steel belt (3) is fixed through embedded steel bars (4) which are poured and fixed in the aqueduct;
when the aqueducts are connected, a closed pore plate (5) bent into a U shape is embedded in an expansion joint (1) between adjacent aqueducts, one end of an opening of the closed pore plate (5) faces upwards, one end of the bending faces downwards, the left side surface of the closed pore plate (5) is tightly attached to the end surface of the aqueduct at the left side, the right side surface of the closed pore plate (5) is tightly attached to the end surface of the aqueduct at the right side, the upper end of the closed pore plate (5) is lower than the bottom of the rectangular notch (2), the expansion joint (1) above the closed pore plate (5) is filled with sealant to form a sealant layer (6), the bottom of the sealant layer (6) is connected with the upper end of the closed pore plate (5), and the upper part of the sealant layer (6) is flush with the bottom of the rectangular notch (2);
the upper surface of the rectangular notch (2) is coated with an epoxy mortar layer (8), the upper surface of the epoxy mortar layer (8) is flush with the inner wall of the aqueduct, and the end part of the epoxy mortar layer (8) is flush with the head end of the aqueduct; a water stop belt (7) is pre-buried in the epoxy mortar layer (8), one end of the water stop belt (7) is pre-buried and fixed in the epoxy mortar layer (8) on the left side of the expansion joint (1), the other end of the water stop belt is pre-buried and fixed in the epoxy mortar layer (8) on the right side of the expansion joint (1), and the center of the water stop belt (7) protrudes upwards.
2. The water conservancy project water delivery aqueduct expansion joint trigeminy water stop structure of claim 1, wherein the sealant is a two-component polyurethane sealant.
3. The water conservancy project water delivery aqueduct expansion joint trigeminy water stop structure of claim 1, characterized in that the water stop (7) is a U-shaped rubber ribbed water stop.
4. The water conservancy project water delivery aqueduct expansion joint trigeminy water stop structure according to claim 1, characterized in that the close orifice plate (5) is filled with an asphalt hemp rope (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220500626.9U CN216838960U (en) | 2022-03-09 | 2022-03-09 | Water conservancy project water delivery aqueduct expansion joint trigeminy stagnant water structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220500626.9U CN216838960U (en) | 2022-03-09 | 2022-03-09 | Water conservancy project water delivery aqueduct expansion joint trigeminy stagnant water structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216838960U true CN216838960U (en) | 2022-06-28 |
Family
ID=82094638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220500626.9U Active CN216838960U (en) | 2022-03-09 | 2022-03-09 | Water conservancy project water delivery aqueduct expansion joint trigeminy stagnant water structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216838960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115478514A (en) * | 2022-09-27 | 2022-12-16 | 青海省水利水电勘测规划设计研究院有限公司 | Aqueduct expansion joint water stop structure and construction method thereof |
-
2022
- 2022-03-09 CN CN202220500626.9U patent/CN216838960U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115478514A (en) * | 2022-09-27 | 2022-12-16 | 青海省水利水电勘测规划设计研究院有限公司 | Aqueduct expansion joint water stop structure and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216838960U (en) | Water conservancy project water delivery aqueduct expansion joint trigeminy stagnant water structure | |
| CN203161259U (en) | Buried-in type rubber water-stop belt of double-layer waterproof structure and construction-joint water drainage structure formed by buried-in type rubber water-stop belt | |
| CN113152698A (en) | Waterstop structure for deformation joint of structure and construction method thereof | |
| CN214939858U (en) | Waterproof structure of concrete dam seam | |
| CN110005438B (en) | Large-deformation tunnel cast-in-place structure design and construction method for crossing movable fault | |
| CN209144746U (en) | A kind of replaceable water sealing structure of presser type | |
| CN109356102B (en) | Asphalt concrete core wall and dam foundation impervious wall connecting structure | |
| CN208415190U (en) | A kind of waterstop with expansion decompression effect | |
| CN205999942U (en) | Simple light rubber fastening band | |
| CN215105093U (en) | Dam concrete panel totally enclosed type flexible apron stagnant water structure | |
| CN215330066U (en) | Waterproof construction of tunnel roof movement joint is worn under city | |
| CN211692480U (en) | Tunnel segment based on high-performance cement-based composite material | |
| CN211816030U (en) | Water stop structure for expansion joint surface layer of hydraulic building | |
| CN113638277A (en) | High-speed railway seal coat expansion joint stagnant water structure | |
| CN114197403A (en) | Elevation and extension seepage-proofing system for grouted stone gravity dam and construction method | |
| CN113445470A (en) | Water seepage blocking structure for settlement joint of flood wall and construction process | |
| CN208870613U (en) | A kind of bored tunnel inverted arch waterproof structure for deformation seams | |
| CN208734351U (en) | A kind of bored tunnel arch deformation seam waterproof construction | |
| CN111074848A (en) | Water stop structure for surface layer of expansion joint of hydraulic building and construction method thereof | |
| CN218969912U (en) | Aqueduct joint water stop structure | |
| CN218405568U (en) | Advanced water-stop anti-seepage concrete structure of settlement post-cast strip with good waterproof effect | |
| CN204491431U (en) | Boxboard fabricated structure culvert | |
| CN216615346U (en) | High-speed railway seal coat expansion joint waterstop and stagnant water structure | |
| CN215367071U (en) | Flood prevention wall subsiding crack infiltration blocks up structure | |
| CN218951951U (en) | Prefabricated assembled high-speed bridge telescoping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |