CN220166840U - Rubber dam water collecting gallery - Google Patents
Rubber dam water collecting gallery Download PDFInfo
- Publication number
- CN220166840U CN220166840U CN202321674275.4U CN202321674275U CN220166840U CN 220166840 U CN220166840 U CN 220166840U CN 202321674275 U CN202321674275 U CN 202321674275U CN 220166840 U CN220166840 U CN 220166840U
- Authority
- CN
- China
- Prior art keywords
- water
- gallery
- layer
- water collecting
- sand
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 180
- 239000004567 concrete Substances 0.000 claims abstract description 85
- 239000000463 material Substances 0.000 claims abstract description 45
- 239000004576 sand Substances 0.000 claims abstract description 23
- 241000353135 Psenopsis anomala Species 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000012466 permeate Substances 0.000 claims abstract description 11
- 239000004575 stone Substances 0.000 claims abstract description 11
- 239000011150 reinforced concrete Substances 0.000 claims description 7
- 230000035515 penetration Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 3
- 239000004746 geotextile Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000013049 sediment Substances 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Revetment (AREA)
Abstract
The utility model provides a water collecting gallery of a rubber dam, and relates to the technical field of hydraulic engineering. The water collecting gallery of the rubber dam is located on a river bed, river water is permeated through the concrete precast blocks and the crushed stone cushion layers above the river bed or the three-layer graded reverse filter material, sequentially flows through the gravel sand layer, the first melon seed sheet layer and the first crushed stone layer, and permeates the water collecting gallery through the sand-free concrete side wall, finally enters the pump house through the water diversion steel pipe to fill water for the dam bag, and the river water is filtered by the three-layer graded reverse filter material before entering the water collecting gallery, so that most of sediment is blocked, the water inlet safety of the water collecting gallery is ensured, the blocking phenomenon is avoided, the water inlet flow is a multiple of the water inlet flow of the designed dam bag, and the water diversion flow of the gallery is ensured to be sufficient.
Description
Technical Field
The utility model relates to the technical field of hydraulic engineering, in particular to a water collecting gallery of a rubber dam.
Background
The rubber dam meets the requirements of flood discharging and water storage functions in a non-flood period, meanwhile, the dam body building has certain ecology, and the single body forms a bright point, so that the rubber dam can be widely applied to the river water storage building with the advantages of being coordinated and unified with the ecological environment of the created river and lake body.
The water filling of the rubber dam generally adopts a steel pipe to directly flow automatically from a river channel to water into a pump room and fill a dam bag, so that the steel pipe is easy to form siltation when the width of the river channel is large and the sediment of the river bed is high, the water collection is insufficient, the maintenance is inconvenient, and the normal operation is influenced.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a water collecting gallery of a rubber dam, which solves the problem that the water filling of a dam bag of the rubber dam is easy to form siltation.
(II) technical scheme
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
a rubber dam catchment gallery, the rubber dam catchment gallery sitting on a riverbed, comprising: a plurality of water collecting units horizontally arranged;
the water collecting unit includes: a water collecting gallery and three-layer graded filter materials;
the water collection gallery includes: a plain concrete bottom plate, a sand-free concrete side wall and a plain concrete top plate;
the plain concrete bottom plate, the sand-free concrete side wall and the plain concrete top plate form a water collecting gallery, the head end of the water collecting gallery is closed, and the tail end of the water collecting gallery is communicated with a pump house through a water diversion steel pipe to fill water into a dam bag;
the three-layer graded filter material is arranged on the outer side of the non-sand concrete side wall and sequentially comprises the following components along the permeation direction: a gravel sand layer, a first melon seed slice layer and a first gravel layer;
the upper part of the three-layer graded filter material is sequentially covered with: the concrete precast block has a certain porosity and can permeate water.
Preferably, the permeability coefficient of the sand-free concrete side wall is more than or equal to 2cm/s.
Preferably, the non-sand concrete side wall is embedded with a water inlet pipe, and the water inlet pipe penetrates through the non-sand concrete side wall and is obliquely arranged upwards along the penetration direction.
Preferably, the water inlet pipe is made of PVC material.
Preferably, galvanized wire netting is all installed at the both ends of inlet tube, and the inlet tube intussuseption is filled with two-layer graded filter material, two-layer graded filter material includes along the infiltration direction in proper order: a second melon seed slice layer and a second gravel layer.
Preferably, the plain concrete top plate is provided with an access hole, the access hole is covered by a reinforced concrete cover plate, the reinforced concrete cover plate is embedded with lifting ribs, and the surfaces of the lifting ribs are galvanized for corrosion prevention and coated with corrosion-resistant paint.
Preferably, plain concrete ballast feet are arranged on the outer sides of the water collecting units at the two ends.
Preferably, the water collecting gallery of the rubber dam is axially split every ten meters, the width of the seam is two centimeters, the seam is filled with a closed-pore foam board, and the seam is wrapped with nonwoven geotextile.
(III) beneficial effects
The utility model provides a water collecting gallery of a rubber dam. Compared with the prior art, the method has the following beneficial effects:
1. in the embodiment of the utility model, the water collecting gallery of the rubber dam is located on a river bed and comprises the following components: a plurality of water collecting units horizontally arranged; the water collecting unit includes: a water collecting gallery and three-layer graded filter materials; the water collection gallery includes: a plain concrete bottom plate, a sand-free concrete side wall and a plain concrete top plate; the plain concrete bottom plate, the non-sand concrete side wall and the plain concrete top plate form a water collecting gallery, the head end of the water collecting gallery is closed, and the tail end of the water collecting gallery is communicated with a pump house through a water diversion steel pipe to fill water into a dam bag; the three-layer graded filter material is arranged on the outer side of the sand-free concrete side wall and sequentially comprises the following components along the permeation direction: a gravel sand layer, a first melon seed slice layer and a first gravel layer; the upper part of the three-layer graded filter material is sequentially covered with: a concrete precast block and a broken stone cushion layer; the water collecting gallery of the rubber dam is located on the river bed, river water is permeated through the concrete precast blocks and the gravel cushion layer above the river bed or the three-layer graded reverse filter material, and sequentially flows through the gravel sand layer, the first melon seed sheet layer and the first gravel layer, after being filtered, the river water permeates into the water collecting gallery through the sand-free concrete side wall, finally enters the pump house through the water diversion steel pipe to fill water for the dam bag, and the river water is filtered by the three-layer graded reverse filter material before entering the water collecting gallery, so that most of sediment is blocked, the water inlet safety of the water collecting gallery is ensured, the blocking phenomenon is avoided, the water inlet flow is a multiple of the designed dam bag water filling flow, and the water diversion flow of the gallery is ensured to be sufficient.
2. In the embodiment of the utility model, the water inlet pipe penetrates through the non-sand concrete side wall and is obliquely arranged upwards along the penetration direction; both ends of the water inlet pipe are provided with galvanized iron wires, the water inlet pipe is filled with two layers of graded reverse filter materials, and the two layers of graded reverse filter materials sequentially comprise: a second melon seed slice and a second crushed stone layer; the river water can permeate into the water collecting gallery through the sand-free concrete side wall after passing through the three-layer grading filtering material, and can also enter the water collecting gallery through the water inlet pipe, and the two-layer grading filtering material in the water inlet pipe can be drawn out for cleaning, so that the overhaul is convenient.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a longitudinal cross-sectional view of a rubber dam catchment gallery in an embodiment of the utility model;
FIG. 2 is a longitudinal cross-sectional view of a water collection gallery in an embodiment of the utility model;
FIG. 3 is a longitudinal cross-sectional view of an inlet tube according to an embodiment of the utility model;
reference numerals in the drawings are set as follows: the concrete floor 1, the sand-free concrete side wall 2, the plain concrete roof 3, the water diversion steel pipe 4, the gravel sand layer 5, the first melon seed sheet 6, the first gravel layer 7, the concrete precast block 8, the gravel cushion layer 9, the water inlet pipe 10, the galvanized wire 11, the second melon seed sheet 12, the second gravel layer 13, the reinforced concrete cover plate 14 and the plain concrete ballast 15.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the utility model solves the problem that the water filling of the rubber dam bag is easy to form siltation by providing the water collecting gallery of the rubber dam.
The technical scheme in the embodiment of the utility model aims to solve the technical problems, and the overall thought is as follows:
in the embodiment of the utility model, the water collecting gallery of the rubber dam is located on a river bed and comprises the following components: a plurality of water collecting units horizontally arranged; the water collecting unit includes: a water collecting gallery and three-layer graded filter materials; the water collection gallery includes: a plain concrete bottom plate, a sand-free concrete side wall and a plain concrete top plate; the plain concrete bottom plate, the non-sand concrete side wall and the plain concrete top plate form a water collecting gallery, the head end of the water collecting gallery is closed, and the tail end of the water collecting gallery is communicated with a pump house through a water diversion steel pipe to fill water into a dam bag; the three-layer graded filter material is arranged on the outer side of the sand-free concrete side wall and sequentially comprises the following components along the permeation direction: a gravel sand layer, a first melon seed slice layer and a first gravel layer; the upper part of the three-layer graded filter material is sequentially covered with: a concrete precast block and a broken stone cushion layer; the water collecting gallery of the rubber dam is located on the river bed, river water is permeated through the concrete precast blocks and the gravel cushion layer above the river bed or the three-layer graded reverse filter material, and sequentially flows through the gravel sand layer, the first melon seed sheet layer and the first gravel layer, after being filtered, the river water permeates into the water collecting gallery through the sand-free concrete side wall, finally enters the pump house through the water diversion steel pipe to fill water for the dam bag, and the river water is filtered by the three-layer graded reverse filter material before entering the water collecting gallery, so that most of sediment is blocked, the water inlet safety of the water collecting gallery is ensured, the blocking phenomenon is avoided, the water inlet flow is a multiple of the designed dam bag water filling flow, and the water diversion flow of the gallery is ensured to be sufficient.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Examples:
as shown in fig. 1 to 3, the present utility model provides a rubber dam catchment gallery, which is located on a riverbed, comprising: a plurality of water collecting units horizontally arranged;
the water collecting unit includes: a water collecting gallery and three-layer graded filter materials;
the water collection gallery includes: a plain concrete bottom plate 1, a sand-free concrete side wall 2 and a plain concrete top plate 3;
the plain concrete bottom plate 1, the sand-free concrete side wall 2 and the plain concrete top plate 3 form a water collecting gallery, the head end of the water collecting gallery is closed, and the tail end of the water collecting gallery is communicated with a pump room through a water diversion steel pipe 4 to fill water for a dam bag;
the three-layer graded filter material is arranged on the outer side of the non-sand concrete side wall 2 and sequentially comprises the following components along the permeation direction: a gravel layer 5, a first melon seed slice 6 and a first gravel layer 7;
the upper part of the three-layer graded filter material is sequentially covered with: the concrete precast block 8 and the broken stone cushion layer 9, wherein the concrete precast block 8 has a certain porosity and can permeate water.
The water collecting gallery of the rubber dam is located on a river bed, river water is permeated through the concrete precast block 9 and the gravel cushion layer 9 above the river bed or the three-layer grading reverse filter material, and sequentially flows through the gravel sand layer 5, the first melon seed sheet layer 6 and the first gravel layer 7 to be filtered, and then permeates into the water collecting gallery through the sand-free concrete side wall 2, finally enters the pump house through the water diversion steel pipe 4 to fill water for the dam bag, river water is filtered by the three-layer grading reverse filter material before entering the water collecting gallery, most of sediment is blocked, the water inlet safety of the water collecting gallery is ensured, the blocking phenomenon is avoided, the water inlet flow is a multiple of the designed dam bag water filling flow, and the water diversion flow of the gallery is ensured to be sufficient.
The permeability coefficient of the sand-free concrete side wall 2 is more than or equal to 2cm/s.
As shown in fig. 1 to 3, the non-sand concrete side wall 2 is embedded with a water inlet pipe 10, and the water inlet pipe 10 penetrates through the non-sand concrete side wall 2 and is arranged obliquely upwards along the penetration direction.
The water inlet pipe 10 is made of PVC.
As shown in fig. 1 to 3, galvanized wire meshes 11 are installed at two ends of the water inlet pipe 10, two layers of graded filter materials are filled in the water inlet pipe 10, and the two layers of graded filter materials sequentially comprise: a second melon seed sheet 12 and a second stone layer 13; so that river water can permeate into the water collecting gallery through the sand-free concrete side wall 2 after passing through the three-layer grading filtering material, and can also enter the water collecting gallery through the water inlet pipe 10, and the two-layer grading filtering material in the water inlet pipe 10 can be drawn out for cleaning, thereby being convenient for overhaul.
As shown in fig. 1 and 2, the plain concrete top plate 3 is provided with an access hole, the access hole is covered by a reinforced concrete cover plate 14, lifting ribs are pre-embedded in the reinforced concrete cover plate 14, and the surfaces of the lifting ribs are galvanized for corrosion protection and coated with corrosion protection paint.
As shown in fig. 1, plain concrete ballast 15 is arranged on the outer sides of the water collecting units at the two ends.
The water collecting gallery of the rubber dam is axially split every ten meters along the direction perpendicular to the paper surface of the figure 1, the slit is two centimeters wide, a closed-pore foam board is filled in the slit, and 300g/m of the slit is wrapped outside the slit 2 Is a non-woven geotextile of the above.
In summary, compared with the prior art, the utility model has the following beneficial effects:
1. in the embodiment of the utility model, the water collecting gallery of the rubber dam is located on a river bed and comprises the following components: a plurality of water collecting units horizontally arranged; the water collecting unit includes: a water collecting gallery and three-layer graded filter materials; the water collection gallery includes: a plain concrete bottom plate, a sand-free concrete side wall and a plain concrete top plate; the plain concrete bottom plate, the non-sand concrete side wall and the plain concrete top plate form a water collecting gallery, the head end of the water collecting gallery is closed, and the tail end of the water collecting gallery is communicated with a pump house through a water diversion steel pipe to fill water into a dam bag; the three-layer graded filter material is arranged on the outer side of the sand-free concrete side wall and sequentially comprises the following components along the permeation direction: a gravel sand layer, a first melon seed slice layer and a first gravel layer; the upper part of the three-layer graded filter material is sequentially covered with: a concrete precast block and a broken stone cushion layer; the water collecting gallery of the rubber dam is located on the river bed, river water is permeated through the concrete precast blocks and the gravel cushion layer above the river bed or the three-layer graded reverse filter material, and sequentially flows through the gravel sand layer, the first melon seed sheet layer and the first gravel layer, after being filtered, the river water permeates into the water collecting gallery through the sand-free concrete side wall, finally enters the pump house through the water diversion steel pipe to fill water for the dam bag, and the river water is filtered by the three-layer graded reverse filter material before entering the water collecting gallery, so that most of sediment is blocked, the water inlet safety of the water collecting gallery is ensured, the blocking phenomenon is avoided, the water inlet flow is a multiple of the designed dam bag water filling flow, and the water diversion flow of the gallery is ensured to be sufficient.
2. In the embodiment of the utility model, the water inlet pipe penetrates through the non-sand concrete side wall and is obliquely arranged upwards along the penetration direction; both ends of the water inlet pipe are provided with galvanized iron wires, the water inlet pipe is filled with two layers of graded reverse filter materials, and the two layers of graded reverse filter materials sequentially comprise: a second melon seed slice and a second crushed stone layer; the river water can permeate into the water collecting gallery through the sand-free concrete side wall after passing through the three-layer grading filtering material, and can also enter the water collecting gallery through the water inlet pipe, and the two-layer grading filtering material in the water inlet pipe can be drawn out for cleaning, so that the overhaul is convenient.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (8)
1. A rubber dam catchment gallery, characterized in that the rubber dam catchment gallery sits on a riverbed, comprising: a plurality of water collecting units horizontally arranged;
the water collecting unit includes: a water collecting gallery and three-layer graded filter materials;
the water collection gallery includes: a plain concrete bottom plate (1), a sand-free concrete side wall (2) and a plain concrete top plate (3);
the plain concrete bottom plate (1), the non-sand concrete side wall (2) and the plain concrete top plate (3) form a water collecting gallery, the head end of the water collecting gallery is closed, and the tail section is communicated with a pump house through a water diversion steel pipe (4) to fill water for a dam bag;
the three-layer graded filter material is arranged outside the sand-free concrete side wall (2) and sequentially comprises the following components along the permeation direction: a gravel sand layer (5), a first melon seed sheet layer (6) and a first crushed stone layer (7);
the upper part of the three-layer graded filter material is sequentially covered with: the concrete precast block (8) and the broken stone cushion layer (9), wherein the concrete precast block (8) has a certain porosity and can permeate water.
2. The rubber dam water collection gallery according to claim 1, wherein the permeability coefficient of the sand-free concrete side wall (2) is greater than or equal to 2cm/s.
3. The rubber dam water collection gallery according to claim 1, wherein the sand-free concrete side wall (2) is pre-embedded with a water inlet pipe (10), and the water inlet pipe (10) penetrates through the sand-free concrete side wall (2) and is arranged obliquely upwards along the penetration direction.
4. A rubber dam catchment gallery according to claim 3, wherein the inlet pipe (10) is of PVC.
5. A rubber dam water collection gallery as claimed in claim 3, wherein both ends of the water inlet pipe (10) are provided with galvanized wire meshes (11), the water inlet pipe (10) is filled with two layers of graded reverse filter materials, and the two layers of graded reverse filter materials sequentially comprise in the penetrating direction: a second melon seed slice layer (12) and a second gravel layer (13).
6. The rubber dam water collection gallery according to claim 1, wherein the plain concrete top plate (3) is provided with an access opening, the access opening is covered by a reinforced concrete cover plate (14), lifting ribs are pre-embedded in the reinforced concrete cover plate (14), and the surfaces of the lifting ribs are galvanized and coated with anti-corrosion paint.
7. A rubber dam catchment gallery as claimed in claim 1, wherein the outside of the catchment units at both ends is provided with plain concrete ballast feet (15).
8. The rubber dam catchment gallery of any of claims 1-7, wherein the rubber dam catchment gallery is axially split every ten meters, is two centimeters wide, is filled with closed cell foam boards, and is wrapped with nonwoven geotextile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674275.4U CN220166840U (en) | 2023-06-28 | 2023-06-28 | Rubber dam water collecting gallery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674275.4U CN220166840U (en) | 2023-06-28 | 2023-06-28 | Rubber dam water collecting gallery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220166840U true CN220166840U (en) | 2023-12-12 |
Family
ID=89060570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321674275.4U Active CN220166840U (en) | 2023-06-28 | 2023-06-28 | Rubber dam water collecting gallery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220166840U (en) |
-
2023
- 2023-06-28 CN CN202321674275.4U patent/CN220166840U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211421194U (en) | Green ecological self-drainage anti-floating device for sloping field building | |
| CN206844172U (en) | A kind of basement bottom board catchments drain structure | |
| CN103046565A (en) | Draining method for ultra-deep batholith deep foundation pit | |
| CN114718101A (en) | Seepage interception structure of tailing pond of seepage interception wall combined dewatering well and construction method thereof | |
| CN108203907A (en) | A kind of town road discharge structure | |
| CN108757027A (en) | Multi-functional lobby water system in a kind of tunnel | |
| CN220166840U (en) | Rubber dam water collecting gallery | |
| CN212104144U (en) | Soil digs protection water collecting structure of foundation ditch clearly | |
| CN211637694U (en) | Percolate collecting well of household garbage landfill | |
| CN214573760U (en) | Anti-clogging simple dam | |
| WO2017193226A1 (en) | Apparatus for controlling hydrostatic pressure under foundation base | |
| CN108166516B (en) | Sponge city based dewatering well comprehensive utilization system and method | |
| CN216275861U (en) | Anti-floating drainage anti-blocking device for underground building | |
| CN211596806U (en) | Dark drainage system suitable for high pressure-bearing groundwater foundation | |
| CN210621879U (en) | Steel construction vestibule drainage structures system | |
| CN205348101U (en) | Water storage flood control device | |
| CN213572245U (en) | Mining area rainwater purifies row and holds system based on LID technique | |
| CN208395840U (en) | Basement sump pit preventive drainage device | |
| CN108658208B (en) | In-situ purification treatment device for tailing water riverway | |
| CN107386338B (en) | A kind of building construction substrate drainage pressure-reducing design structure | |
| CN205742298U (en) | Control hydrostatic pressing device under the negative of basis | |
| CN206438582U (en) | A kind of novel rainwater stores stagnant with utilizing integral system | |
| CN211172038U (en) | Municipal construction's foundation ditch drainage structures | |
| CN216238668U (en) | Intelligent drainage pressure relief active anti-floating system | |
| CN218933352U (en) | Multi-water source filter tube infiltration canal system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.185, Haitang Road, Hefei hi tech Development Zone, Anhui Province, 230088 Patentee after: Anhui water conservancy and hydropower survey and design research institute Co.,Ltd. Country or region after: China Address before: No.185, Haitang Road, Hefei hi tech Development Zone, Anhui Province, 230088 Patentee before: Anhui water resources and Hydropower Survey, design and Research Institute Co.,Ltd. Country or region before: China |