CN210712781U - Combined meter hole water retaining structure of day-adjusting hydropower station - Google Patents
Combined meter hole water retaining structure of day-adjusting hydropower station Download PDFInfo
- Publication number
- CN210712781U CN210712781U CN201921577623.XU CN201921577623U CN210712781U CN 210712781 U CN210712781 U CN 210712781U CN 201921577623 U CN201921577623 U CN 201921577623U CN 210712781 U CN210712781 U CN 210712781U
- Authority
- CN
- China
- Prior art keywords
- gate
- hole
- meter
- flood discharge
- portal crane
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model belongs to the technical field of hydraulic and hydroelectric engineering, a combination formula table hole manger plate structure that can make day adjust power station can generate electricity in advance is specifically disclosed. This power station combination formula table hole manger plate structure is adjusted daily, be provided with table hole maintenance gate through slidable in the maintenance gate slot that one of them flood discharge table hole corresponds, and be provided with the stoplog door slidable in the maintenance gate slot that all the other flood discharge table holes correspond, can make the day adjust the hydropower station and possess essential retaining power generation function, need not to wait for the arc work gate again and bury the component installation underground and accomplish and just can generate electricity, can make the day adjust the hydropower station and generate electricity 1 ~ 2 months in advance, under the prerequisite of not taking any hurry measures, through the less expense of input, can reach the target that obtains great power generation benefit.
Description
Technical Field
The utility model belongs to the technical field of hydraulic and hydroelectric engineering, concretely relates to power station combination formula table hole manger plate structure is adjusted daily.
Background
When the topographic and geological conditions permit, the hydropower station engineering constructed in the high mountain canyon region generally preferentially adopts a concrete arch dam or a gravity dam, and for the hydropower station engineering in the plain region, a low gate dam is mostly adopted. For a tap hydropower station with annual reservoir capacity adjustment in an upstream cascade hydropower station and a hydropower station with small reservoir capacity in front of a dam, a daily adjustment type hydropower station is generally adopted, the amplitude of normal water storage level and dead water level is small, and water is retained by a working arc door of a meter hole to generate electricity, so that the hydropower station has excellent economic indexes. In the following, the arch dam engineering at a certain exploitable design stage is taken as an example (the same applies to day adjustment hydropower stations such as gravity dam engineering and gate dam engineering), and the day adjustment hydropower station adopts a combined surface hole water retaining structure and benefits of advanced power generation of the day adjustment hydropower station are discussed.
The project of a certain designed stage is an arch dam, the surface holes of the arch dam are mostly arranged across transverse seams, therefore, the surface holes are required to be arranged to support the girders to be connected with dam bodies on two sides of the surface holes, and the arch dam can also be used as a support structure of the surface hole arc-shaped working door, but the surface holes support the girders and cannot be connected into a whole at the initial construction stage, a wide seam is required to be arranged in the middle of a support beam, and the dam bodies are prevented from being restrained during the cold accurate period of the dam bodies; according to the regulation of the specification, the age of the concrete of the dam blocks at two sides of the irrigation area is preferably more than 4 months, and when effective measures are taken, the age is not preferably less than 3 months. The overall construction procedure of the upper part of the dam body is as follows: joint grouting (dam sections below the elevation of surface holes) in a 2232 m-2241 m elevation grouting area → back filling of reserved wide-seam concrete of a supporting girder, cooling → grouting of transverse seam joints of dam sections on two sides → installation of arc door positioning members of surface holes → water storage and power generation.
According to the requirements, the concrete of the lowest dam section is poured to 2241m in 3 months in the eighth year, the age of the concrete in the elevation irrigation area of 2232 m-2241 m in 7 months reaches 4 months, the concrete is cooled to the joint grouting temperature, the joint grouting in the elevation irrigation area of 2232 m-2241 m is completed in the first ten days of 8 months, the reserved wide groove of the surface hole supporting girder is backfilled after the joint grouting is completed, the depth of the wide groove is about 14m, the backfilling is carried out in layers, the backfilling and the cooling of the wide groove take about 45 days, and the cooling in the last ten days of 9 months is controlled to be completed.
And in the eighth year, concrete is poured to the lowest dam section at the height of 2250m in 5 months, the age of the concrete in the 9-month bottom 2241 m-2250 m height pouring area reaches 4 months, and the 9-month bottom is controlled to finish 2241 m-2250 m height joint grouting. And concrete of the dam body is completely poured to 2259m (dam crest elevation) in 6 months in the eighth year, the age of the concrete at the upper part of the bottom of 9 months reaches 3 months, and the age of the concrete in the irrigation area from 2250m to 2259m can be controlled according to 3 months by considering the age of the concrete in the irrigation area, so that the end of 9 months is controlled to finish the seam grouting of the irrigation area from 2250m to 2259 m.
Arch dam surface hole working gate generally adopts radial working gate, and for the bulkhead gate, surface hole radial working gate has following advantage: the bottom and two sides of the radial working gate are not provided with concave gate slots, the water flow state is better, the opening and closing force of the gate is smaller, the gate adopts a straight supporting arm spherical hinge radial working gate, and the supporting hinge bearing adopts a self-lubricating spherical sliding bearing. The gate operation mode can move the opening and closing of water and can be opened partially, and the downward discharge flow can be controlled according to the incoming flow; the starting and stopping equipment selects a double-lifting-point rear-pull hydraulic starting and stopping machine, one machine is operated, the starting and stopping machine is provided with two independent power supplies and a diesel generator serving as a standby power supply, and once flood occurs, the guarantee rate of timely opening the gate is extremely high.
According to the construction schedule, the arc-shaped working gate with five surface holes and the embedded member thereof have installation conditions at the beginning of 10 months in the eighth year; the embedded member comprises a side water stop seat, a bottom ridge water stop seat, a top water stop device, a hinged support and the like, is generally embedded into the surface of a concrete relevant part, plays the roles of tight water stop and bearing, has the fastest installation period of about 3 months, and completes the installation and debugging of the surface hole arc-shaped working gate and the hoist at the bottom of 12 months in the eighth year. The normal water storage level and the lowest power generation dead water level of all day-adjusted hydropower stations have small difference, the reservoir capacity of an adjusting reservoir is small, the normal water storage level and the lowest power generation dead water level are both required to be retained by meter holes and gates, and the unit can normally run to generate power after the water level is required to be stored to the dead water level. Therefore, after the surface hole radial working gate blocks water, the power station has power generation conditions at the end of 12 months in the eighth year at the earliest.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a combination formula table hole manger plate structure that can make day adjust power station can generate electricity in advance.
The utility model provides a technical scheme that its technical problem adopted is: a combined meter-hole water retaining structure of a day-regulated hydropower station comprises an arch dam with flood discharge meter-hole bottom plates and gate piers, wherein at least three gate piers are arranged on the flood discharge meter-hole bottom plates at intervals, and a space between every two adjacent gate piers is a flood discharge meter-hole; maintenance gate slots are arranged on the gate pier side walls corresponding to two sides of the flood discharge meter holes, meter hole maintenance gates are slidably arranged in the maintenance gate slots corresponding to one flood discharge meter hole, and stop gates are slidably arranged in the maintenance gate slots corresponding to the other flood discharge meter holes; the stoplog door mainly comprises at least two door bodies from up coincide down, all is provided with stagnant water spare between stoplog door and access gate groove and flood discharge meter hole bottom plate, also is provided with stagnant water spare between the two adjacent door bodies.
Further, the number of the gate piers is six.
The surface hole portal crane further comprises a surface hole portal crane, wherein the surface hole portal crane comprises a portal crane rail arranged on the top of the arch dam along the axial direction of the arch dam, a portal crane walking device arranged on the portal crane rail, a portal crane main body arranged on the portal crane walking device and a portal crane hoisting device arranged on the portal crane main body.
Further, the surface hole door machine further comprises a door machine control chamber arranged on the door machine main body.
The utility model has the advantages that: the meter hole maintenance gate can be slidably arranged in the maintenance gate slot corresponding to one flood discharge meter hole, the stoplog gate can be slidably arranged in the maintenance gate slot corresponding to other flood discharge meter holes, the daily regulation hydropower station can have a basic water storage power generation function, power generation can be performed without waiting for the arc-shaped working gate and embedding the arc-shaped working gate for installation of members, the daily regulation hydropower station can generate power in advance for 1-2 months, and under the premise of not taking any rush-up measures, the goal of obtaining large power generation benefits can be achieved by investing less cost.
Drawings
Fig. 1 is a schematic plan view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at B;
labeled as: the device comprises an arch dam 10, a flood discharge meter hole bottom plate 11, a gate pier 12, a flood discharge meter hole 13, an overhaul gate slot 14, a meter hole overhaul gate 15, a stop log gate 16, an arc-shaped working gate slot 17, an arc-shaped working gate 18, a hinged support 19, a support girder 20, a meter hole gate machine 30, a gate machine track 31, a gate machine walking device 32, a gate machine main body 33, a gate machine hoisting device 34, a gate machine control chamber 35, a dead water level 41 and a normal water storage level 42;
the direction of the arrows in fig. 1 and 2 each indicate the direction of water flow.
Detailed Description
The utility model discloses an explanation and drawing all use a certain arch dam engineering as an example, the utility model discloses be applicable to the day regulation hydropower station engineering of other dam types equally. The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the combined meter-hole water retaining structure for the day-regulated hydropower station comprises an arch dam 10 with flood discharge meter-hole bottom plates 11 and gate piers 12, wherein at least three gate piers 12 are arranged on the flood discharge meter-hole bottom plates 11 at intervals, and the space between every two adjacent gate piers 12 is a flood discharge meter-hole 13; the side walls of the gate piers 12 corresponding to the two sides of the flood discharge meter holes 13 are provided with overhaul gate slots 14, a meter hole overhaul gate 15 is slidably arranged in the overhaul gate slot 14 corresponding to one flood discharge meter hole 13, and a stop log gate 16 is slidably arranged in the overhaul gate slots 14 corresponding to the other flood discharge meter holes 13; the stop log door 16 is mainly composed of at least two gate bodies which are overlapped from bottom to top, water stopping parts are arranged between the stop log door 16 and the access gate slot 14 and between the stop log door 16 and the flood discharge meter hole bottom plate 11, and water stopping parts are also arranged between two adjacent gate bodies.
The daily-adjustment hydropower station combined type surface hole water retaining structure is usually installed and set after joint grouting is completed in a dam crest elevation grouting area of an arch dam 10, and at the moment, the flood discharge surface hole 13 has conditions for installing the arc-shaped working gate 18 and the embedded member thereof. The meter hole inspection gate 15 is slidably arranged in the inspection gate groove 14 corresponding to one flood discharge meter hole 13, and the stoplog gate 16 is slidably arranged in the inspection gate groove 14 corresponding to the rest flood discharge meter holes 13, so that the daily regulation hydropower station has a basic water storage power generation function, the installation of the arc-shaped working gate 18 and the embedded member thereof is not required to be finished, and therefore, under the premise that no work dispelling measure is taken, compared with the existing water retaining structure, the daily regulation hydropower station can generate power in advance by 1-2 months, and great power generation economic benefits are obtained.
When the combined meter hole water retaining structure of the day-regulated hydropower station is used for retaining water for power generation, the water retaining power generation water level can be determined according to the actual water storage condition, and any water level between the dead water level 41 (namely the lowest power generation water level) and the normal water storage level 42 in the water storage tank can be selected in fig. 2. In addition, the power generation system of the factory building is not arranged on the construction key line of the arch dam 10, so that the power generation system can be implemented in advance to meet the requirement of corresponding advanced power generation progress. Generally, for one machine to generate power 2 months in advance, the plant power generation system as a whole may not be implemented in advance; for the first two machines to generate power in advance for 2 months, the two machines need to be sequentially installed and debugged according to the limitation of factors such as an installation site, hoisting equipment, installation and debugging personnel and the like, so that a plant power generation system needs to be implemented about 4 months ahead of the total, and capital of the plant power generation system needs to be invested 4 months ahead; in a word, the construction progress of the factory building power generation system should match with the construction progress of the dam, for example: the first two machines generate power 2 months in advance, the power generation is required to be carried out at the end of 10 months in the eighth year, and then the water debugging time of the machine set about 20 days is considered, so that the civil engineering, electromechanical equipment installation and auxiliary supporting equipment of the two machines of the power generation system of the factory building are required to be completed in the last 10 months in the eighth year, and at the moment, the civil engineering of the dam is completed to the top, and only the arc-shaped working gate 18 and the embedded members thereof are installed.
Wherein the number of gate piers 12 is at least three, preferably six as shown in the figure; the stop log door 16 is of a temporary water retaining structure, the structure of the stop log door can be a steel structure stop log door, and can also be a reinforced concrete stop log door, but for convenience of processing and transportation, the lifting of the surface hole portal crane 30 is facilitated, and the steel structure stop log door with light self weight is preferably adopted; the slidable mounting of the porthole access door 15 and the stoplog door 16 in the access door slot 14 can be of various types, for example: mounting through clearance fit, mounting into a maintenance gate slot 14 through arranging rollers on a surface hole maintenance gate 15 and a stoplog gate 16 respectively, and performing sliding mounting through arranging a T-shaped or dovetail slot-shaped fit structure; the combined meter-hole water retaining structure of the day adjustment hydropower station also generally comprises supporting girders 20, and the supporting girders 20 are arranged on all the gate piers 12 in a spanning mode.
Because the meter-hole inspection gate 15 and the stoplog gate 16 are both temporary water retaining structures, the installation of the arc-shaped working gate 18 and the embedded members thereof can be carried out at any time in the temporary water retaining and/or power station power generation process; as shown in fig. 2, arc-shaped working gate slots 17 are usually formed in the side walls of the gate piers 12 corresponding to the two sides of the flood discharge meter hole 13, the arc-shaped working gate slots 17 are located at the downstream side of the access gate slots 14, and arc-shaped working gates 18 are slidably disposed in the arc-shaped working gate slots 17; a hinge support 19 is arranged on the support girder 20, and the radial work gate 18 is connected to the hinge support 19 by means of its arms. Since the segmental working gate 18 is installed at the downstream side of the manhole service gate 15 or the stack door 16, it is not affected by the impoundment of the arch dam 10. After the arc-shaped working gate 18 is completely installed, the surface manhole maintenance gate 15 is placed in a surface manhole maintenance gate storage groove formed in the arch dam 10 for standby, and all the stop log doors 16 are lifted out and recycled.
In order to facilitate hoisting or lowering of the meter hole inspection gate 15 and the stoplog gate 16, as shown in fig. 1, 2 and 3, the combined meter hole water retaining structure for the day adjustment hydropower station further comprises a meter hole portal crane 30, wherein the meter hole portal crane 30 comprises a portal crane rail 31 arranged on the top of the arch dam 10 along the axial direction of the arch dam 10, a portal crane traveling device 32 arranged on the portal crane rail 31, a portal crane main body 33 arranged on the portal crane traveling device 32 and a portal crane hoisting device 34 arranged on the portal crane main body 33. The surface hole door machine 30 can be the existing surface and deep hole overhaul gate door machine, and a door machine control chamber 35 is generally arranged on the door machine main body 33 of the surface hole door machine 30.
The surface hole portal crane 30 vertically walks on the portal crane track 31 through the portal crane walking device 32, when each hole gate is operated, the surface hole portal crane 30 is firstly moved to a square accurate position on an orifice, and then the surface hole overhaul gate 15 or the stoplog gate 16 is hoisted or lowered through the portal crane hoisting device 34; the hydraulic grabbing beam of the gantry crane hoisting device 34 grabs the surface hole maintenance gate 15 or the stop log gate 16, controls the lowering height and the aligning device to realize positioning with the surface hole maintenance gate 15 or the stop log gate 16, starts the grabbing beam hydraulic pin shaft after positioning, and normally lowers or lifts the surface hole maintenance gate 15 or the stop log gate 16 after the pin shaft and the gate lifting lug are penetrated and withdrawn.
The method for generating power in advance of the daily regulation hydropower station comprises the following steps:
step one, after joint grouting is finished in a dam crest elevation grouting area of an arch dam 10, arranging any one of the combined type surface hole water retaining structures of the day adjusting hydropower station at a flood discharge surface hole 13; in this step, the manhole access gates 15 and the stop log gates 16 are usually installed and debugged 15 days before the arch dam 10 blocks water;
and step two, temporarily retaining water by the meter hole inspection gate 15 and the stop log gate 16, and starting power generation by the power station after the water is stored to a position above a dead water level.
Preferably, the method for generating power in advance of the daily regulation hydropower station further comprises a third step and a fourth step;
step three, installing the arc-shaped working gate 18 and the embedded member thereof in the process of temporarily retaining water and/or generating power by the power station;
and step four, after the arc-shaped working gate 18 and the embedded member thereof are completely installed, placing the surface hole inspection gate 15 in a surface hole inspection gate storage groove formed in the arch dam 10 for later use, lifting out all the stop log doors 16 and carrying out recovery processing.
Examples
The general construction procedure of the upper part of a dam body of a hydropower station project for regulating the day of a certain arch dam is as follows: in the eighth year 3, 2232 m-2241 m elevation grouting area joints → reserved wide seam concrete backfilling of supporting girders, cooling → installation of transverse seam joints of dam sections on two sides → surface hole overhaul gates 15 and a stoplog gate 16 → water storage and power generation → installation of an arc-shaped working gate 18 and an embedded member thereof.
According to the requirements, the concrete of the lowest dam section is poured to 2241m in month 3 of the eighth year, namely the pouring of the dam body concrete of the Nth area is finished, the age of the dam body concrete of the Nth area reaches 4 months in month 7 of the eighth year, the dam body concrete is cooled to the joint grouting temperature, the joint grouting of the Nth area is finished in the last ten days of the eighth year 8, the backfilling of the wide groove reserved on the surface hole supporting girder is started after the joint grouting is finished, the depth of the wide groove is about 14m, the backfilling is carried out in layers, the backfilling and the cooling of the wide groove take about 45 days, namely the cooling is finished in the last ten days of the 9 th month of.
And (3) completing pouring of dam concrete in the (N + 1) th area in 5 th month in the eighth year, controlling the age of the dam concrete in the (N + 1) th area at the bottom of 9 th month in the eighth year to reach 4 months, and completing grouting of the joint in the (N + 1) th area at the bottom of 9 th month in the eighth year. And (3) pouring all the dam body concrete to the dam top elevation in the eighth 6 months, controlling the age of the dam body concrete in the (N + 2) th area at the bottom of the eighth 9 months according to 3 months by considering the age of the concrete in the irrigation area, and controlling the age of the concrete in the (N + 2) th area in the eighth 9 months to finish the seam grouting in the (N + 2) th area, wherein the grouting equal strength is considered, and the dam body has any water level between the stagnant water storage level 41 and the normal water storage level 42 before the bottom of the eighth 10 months.
The height difference of the dam concrete and seam grouting Nth, Nth +1 and Nth +2 areas is generally 9-12 m, according to a normal construction procedure, the radial working gate 18 and the embedded member thereof have installation conditions in 10 months in the eighth year, at the moment, a meter-hole inspection gate 15 is slidably arranged in an inspection gate groove 14 corresponding to one flood discharge meter hole 13, and a laminated beam door 16 is slidably arranged in the inspection gate groove 14 corresponding to the other flood discharge meter holes 13 to form a temporary water retaining structure, so that the water storage, unit debugging and power generation time is not controlled any more in the installation period of the radial working gate 18 and the embedded member thereof, and the hydropower station can generate power 1-2 months in advance.
This day adjusts power station and installs 4 units altogether, the unit is 60 ten thousand kW, calculate with the electricity generation of a machine 2 months in advance, factory building power generation system is normally under construction according to original plan, only increase four stoplog doors 16, about need steel 180t, increase and make the installation cost and be about 256 ten thousand yuan, and according to the minimum power generation water level of interim manger plate, a machine is generated electricity and is calculated 2 months in advance, 8.76 billion kWh's electric quantity can be sent out in advance, calculate according to online price of electricity 0.29 yuan/kWh, the benefit increase is about 2.54 billion yuan, if two machines generate electricity 2 months in advance, even if consider that factory building power generation system capital needs to put into in advance 3 months, its economic benefits is more excellent than a machine electricity generation in advance, so on the analogy, the utility model discloses an economic benefits is showing.
Claims (4)
1. A combined meter-hole water retaining structure of a day-regulated hydropower station comprises an arch dam (10) provided with flood discharge meter-hole bottom plates (11) and gate piers (12), wherein at least three gate piers (12) are arranged on the flood discharge meter-hole bottom plates (11) at intervals, and a space between every two adjacent gate piers (12) is a flood discharge meter-hole (13); the method is characterized in that: maintenance gate slots (14) are formed in the side walls of the gate piers (12) corresponding to the two sides of the flood discharge meter holes (13), meter hole maintenance gates (15) are slidably arranged in the maintenance gate slots (14) corresponding to one flood discharge meter hole (13), and stop gates (16) are slidably arranged in the maintenance gate slots (14) corresponding to the other flood discharge meter holes (13); stop log door (16) mainly constitute from up coincide down by two section door bodies at least, all are provided with the stagnant water spare between stop log door (16) and access gate groove (14) and flood discharge meter hole bottom plate (11), also are provided with the stagnant water spare between two adjacent section door bodies.
2. The combined type meter hole water retaining structure of the day adjusting hydropower station as claimed in claim 1, wherein: the number of the gate piers (12) is six.
3. The combined type meter hole water retaining structure of the day adjusting hydropower station as claimed in claim 1 or 2, wherein: still include table hole portal crane (30), table hole portal crane (30) include along portal crane track (31) of the axial setting of dam of arch dam (10) on the dam top of arch dam (10), set up portal crane running gear (32) on portal crane track (31), set up portal crane main part (33) on portal crane running gear (32) and set up portal crane hoisting accessory (34) on portal crane main part (33).
4. The combined type meter hole water retaining structure of the day adjusting hydropower station as claimed in claim 3, wherein: the surface hole door machine (30) further comprises a door machine control chamber (35) arranged on the door machine main body (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577623.XU CN210712781U (en) | 2019-09-20 | 2019-09-20 | Combined meter hole water retaining structure of day-adjusting hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577623.XU CN210712781U (en) | 2019-09-20 | 2019-09-20 | Combined meter hole water retaining structure of day-adjusting hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210712781U true CN210712781U (en) | 2020-06-09 |
Family
ID=70927163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921577623.XU Active CN210712781U (en) | 2019-09-20 | 2019-09-20 | Combined meter hole water retaining structure of day-adjusting hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210712781U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485389A (en) * | 2019-09-20 | 2019-11-22 | 中国电建集团成都勘测设计研究院有限公司 | A kind of daily regulated hydroplant modular table hole water-retaining structure |
| CN113481944A (en) * | 2021-07-26 | 2021-10-08 | 中国三峡建工(集团)有限公司 | Dam surface hole connection girder supporting structure and construction method |
-
2019
- 2019-09-20 CN CN201921577623.XU patent/CN210712781U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485389A (en) * | 2019-09-20 | 2019-11-22 | 中国电建集团成都勘测设计研究院有限公司 | A kind of daily regulated hydroplant modular table hole water-retaining structure |
| CN113481944A (en) * | 2021-07-26 | 2021-10-08 | 中国三峡建工(集团)有限公司 | Dam surface hole connection girder supporting structure and construction method |
| CN113481944B (en) * | 2021-07-26 | 2022-07-15 | 中国三峡建工(集团)有限公司 | Construction method of dam surface hole connection girder supporting structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101519864B (en) | Method for mounting box arch bridge | |
| CN210712781U (en) | Combined meter hole water retaining structure of day-adjusting hydropower station | |
| CN101126319B (en) | Shield tunnel lateral cross-over pile base construction method | |
| CN101886386B (en) | Construction method for jointing of steel reinforcement cages of reinforced concrete drilling bored concrete pile | |
| CN104652290A (en) | Horizontal rotating construction method for steel truss beam bridge | |
| CN108677765B (en) | Bridge integral synchronous jacking support replacing system and construction method | |
| CN106522096A (en) | Curved incremental launching construction technology for 48m-long-span railway simply-supported box girders and high piers | |
| CN103410094B (en) | Installation construction method for bridge rigid hinge | |
| CN111980020A (en) | Construction method of double-wall steel suspension box cofferdam of main bridge bearing platform of super-large bridge | |
| CN113756314A (en) | Construction method suitable for excavation of deep and large ground iron-based pit of soft soil foundation in long and triangular regions | |
| CN116014808A (en) | Internet of things scheduling method and device for small and medium-sized pumped storage power station | |
| CN209179021U (en) | A kind of foundation pit campshed support system | |
| CN202117031U (en) | Hydraulic slip form construction device for gate pier | |
| CN210256628U (en) | Self-adaptive outer mold system for prefabricating concrete | |
| CN110485389A (en) | A kind of daily regulated hydroplant modular table hole water-retaining structure | |
| CN113981918B (en) | Construction method for intercepting drainage type hydropower station | |
| CN210975748U (en) | Automatic lifting gate applied to hydraulic and hydroelectric engineering and landscape engineering | |
| CN212506983U (en) | Wing-unfolding type retractable roof structure | |
| CN204125947U (en) | A kind of concrete casting system of high placing intensity dam | |
| CN111622078B (en) | Steel box girder convenient to assemble for curved landscape bridge and hoisting construction process of steel box girder | |
| Wolf | Current Developments in Hydro-Electric Plant Design | |
| Xing et al. | Optimization Design and Application of Sluice Pier Sliding Formwork | |
| Morgenthal et al. | The 4000 tonne lift of Stonecutters Bridge steel back-spans, HK | |
| CN105297689A (en) | Method for mounting extra-large tainter gate of hydropower station spillway | |
| Hong-wei | Key Technology for Construction of Steel-concrete Composite Suspending Cofferdam without Bottom Cover for Platform of Coastal Intercommunication Project |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |