CN214884021U - Water supply system for concrete dam construction - Google Patents
Water supply system for concrete dam construction Download PDFInfo
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- CN214884021U CN214884021U CN202120247633.8U CN202120247633U CN214884021U CN 214884021 U CN214884021 U CN 214884021U CN 202120247633 U CN202120247633 U CN 202120247633U CN 214884021 U CN214884021 U CN 214884021U
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Abstract
The utility model discloses a concrete dam construction water supply system, including left bank high-order pond, right bank high-order pond, wear to establish at the inside raceway of dam and the pump station of being connected with left bank high-order pond, the one end of raceway is passed left bank high-order pond downside and left bank high-order pond intercommunication. The utility model discloses a set up the bottom intercommunication in raceway with left bank high-order pond and right bank high-order pond, the liquid level that makes left bank high-order pond and right bank high-order pond always keeps on same horizontal plane, thereby make a left side, right bank water consumption forms complementally, can arrange the water peak period of properly staggering according to the construction progress, thereby effectively reduce the total volume in high-order pond, make device easy to assemble and transport more, the managers has been reduced effectively, equipment, the occupation volume of material, and the operation management is convenient, and resource utilization is improved, and effective reduce cost.
Description
Technical Field
The utility model belongs to the technical field of dam construction water supply, concretely relates to concrete dam construction water supply system.
Background
In the dam concrete construction process of hydropower stations or hydraulic junction projects, because the concrete pouring storehouse face is sprayed, scoured, maintained and other operations and mechanical equipment and the like all need water, before or in the dam engineering construction process, high-level water pools are generally respectively arranged on the dam shoulders of the left and right banks, river water is pumped to the high-level water pools through pump stations arranged at the river sides, and then the high-level water pools are connected with a water conveying pipeline to the construction storehouse face, so that the aim of continuously conveying water to the storehouse face is fulfilled.
Diversion is needed to be carried out before concrete construction of a dam body, so a construction water supply system needs to be adjusted along with the progress condition of engineering construction, the dam construction water supply adopting the disposable cofferdam diversion is relatively fixed due to the position of a pump station, the water supply system can be constructed at one time, so the construction water supply is relatively simple, and the dam construction water supply adopting the staged cofferdam (assuming that the left bank is constructed firstly and the right bank is constructed secondly) diversion is divided into 3 stages: (1) supplying water for concrete construction during the first diversion period; (2) supplying water for concrete construction during the second stage of diversion; (3) and supplying water for concrete construction on the upper part of the dam. In the first diversion period, a pump station and a high-level water pool are arranged on the upstream side for convenient water taking; during the second stage of diversion, the pump station and the high-level water tank need to be moved to the downstream side of the dam body because the river water is adjusted to pass through the diversion building, the upstream water level rises, and the fluctuation of the upstream river surface water level is large during the rainy season. And a water supply system is required to be arranged on the left bank and the right bank so as to meet the concrete construction requirements of the left bank and the right bank. The existing water supply method is to arrange independent water supply systems on the left and right bank shoulders respectively to meet the construction requirements. However, the independent water supply systems are complicated and inconvenient to transport, water quantities of the left bank and the right bank cannot be complemented, the water supply systems on the two banks need to be set according to respective peak water consumption, the power of the water pump and the capacity of the water tank are large, and unnecessary waste is caused.
Concrete dam engineering construction cycle is longer, often lasts the several years and can accomplish, to the dam construction water supply of stage cofferdam water conservancy diversion, how satisfy under the condition that the construction needs, as few as possible occupy the resource and can be convenient for manage to reach reduce cost's purpose, be the problem that needs to solve at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem lie in not enough to among the above-mentioned prior art, a concrete dam construction water supply system is provided, a structure is simple, and reasonable design, therefore, the clothes hanger is strong in practicability, through setting up the bottom intercommunication in raceway with left bank high-order pond and right bank high-order pond, make the liquid level in left bank high-order pond and right bank high-order pond always keep on same horizontal plane, thereby make a left side, right bank water consumption forms complementally, can arrange the water peak period of properly staggering according to the construction progress, thereby effectively reduce the total volume in high-order pond, make the device easy to assemble and transport more, managers has been reduced effectively, equipment, the occupation volume of material, and operation management is convenient, resource utilization rate is improved, can effectively reduce cost.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a concrete dam construction water supply system which characterized in that: including left bank high-order pond, right bank high-order pond, wear to establish the inside raceway of dam, and the pump station of being connected with left bank high-order pond, the one end and the left bank high-order pond intercommunication of raceway, the clearance has between the one end of raceway and the bottom in left bank high-order pond, the other end and the right bank high-order pond intercommunication of raceway, the clearance has between the other end of raceway and the bottom in right bank high-order pond, left bank high-order pond top and right bank high-order pond top all are located same horizontal plane, be connected with a plurality of outlet pipes that extend the working face is pour to the dam on the raceway, be provided with the valve on the outlet pipe.
Foretell concrete dam construction water supply system, its characterized in that: the delivery port of pump station is connected with the delivery pipe, and the one end that the pump station was kept away from to the delivery pipe stretches into to left bank high-order pond in by left bank high-order pond top.
Foretell concrete dam construction water supply system, its characterized in that: and a water level sensor is arranged in the high-level water tank on the left bank.
Foretell concrete dam construction water supply system, its characterized in that: the distance between one end of the water pipe and the bottom of the high-level water tank on the left bank is 15-20 cm, and the distance between one end of the water pipe and the bottom of the high-level water tank on the right bank is 15-20 cm.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses a set up the bottom intercommunication in raceway with left bank high-order pond and right bank high-order pond, make the liquid level in left bank high-order pond and right bank high-order pond keep on same horizontal plane always to make left and right bank water consumption form complementally, can arrange the water peak period of properly staggering according to the construction progress, thereby effectively reduce the total volume in high-order pond, make the device more easy to assemble and transport.
2. The utility model discloses a set up a pump station and supply water for left bank high-order pond and right bank high-order pond jointly, reduced the volume of occuping of managers, equipment, material effectively, and the operation management is convenient, has improved resource utilization, can effective reduce cost.
3. The utility model discloses need not to supply water according to the peak water consumption at any time, simultaneously owing to realized the principle of communicating pipe, the water supply pressure of a plurality of dam sections of consequently dam is balanced relatively, and the water pressure that bears in the raceway is less to require lower to the wall thickness of pipeline and material etc. when the selection material of raceway, construction cost is lower.
To sum up, the utility model has the advantages of simple structure, reasonable in design, the practicality is strong, through setting up the bottom intercommunication in raceway with left bank high-order pond and right bank high-order pond, make the liquid level in left bank high-order pond and right bank high-order pond keep always on same horizontal plane, thereby make left and right bank water consumption form complementally, can arrange the water peak period of properly staggering according to the construction progress, thereby effectively reduce the total volume in high-order pond, make the device easy to assemble and transport more, effectively reduced managers, equipment, the amount of occuping of material, and operation management is convenient, resource utilization rate is improved, can effective reduce cost.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic view of the construction structure of the utility model during the first stage of diversion.
Description of reference numerals:
1-left bank high-level water pool; 2-a right bank high-level water tank; 3-a large dam;
4-water conveying pipe; 5-a pump station; 6-pouring a working surface on the dam;
7-a water outlet pipe; 8-a water supply pipe; 9-river bank;
10-river channel; 11-first-stage cofferdam; 12-second stage cofferdam.
Detailed Description
As shown in fig. 1, fig. 2 and fig. 3, the utility model discloses a left bank high-order pond 1, right bank high-order pond 2, wear to establish at the inside raceway 4 of dam 3, and the pump station 5 of being connected with left bank high-order pond 1, raceway 4's one end and left bank high-order pond 1 intercommunication, the clearance has between raceway 4's one end and the bottom of left bank high-order pond 1, raceway 4's the other end and right bank high-order pond 2 intercommunication, the clearance has between raceway 4's the other end and the bottom of right bank high-order pond 2, left bank high-order pond 1 top and right bank high-order pond 2 top all are located same horizontal plane, be connected with a plurality of outlet pipes 7 that extend dam work face 6 on raceway 4, be provided with the valve on outlet pipe 7.
In this embodiment, the left bank high-level water tank 1 is a high-level water tank provided on the left bank of the observer facing the river flow direction, and the right bank high-level water tank 2 is opposite to the left bank high-level water tank 1.
In this embodiment, the pumping station 5 is a river pumping station.
In this embodiment, the left bank high-level water tank 1 and the right bank high-level water tank 2 are respectively disposed on the banks 9 on both sides of the dam 3.
In this embodiment, the dam 3 has an internal dam gallery, the water pipe 4 is installed in the internal dam gallery, and the water pipe 4 is removed after the dam construction is completed.
It should be noted that the water pipe 4 is arranged to communicate the bottoms of the left bank high-level water tank 1 and the right bank high-level water tank 2, so that the liquid levels of the left bank high-level water tank 1 and the right bank high-level water tank 2 are always kept on the same horizontal plane, the water consumption of the left bank and the right bank are complementary, the water peak periods can be properly staggered according to the construction schedule, the total volume of the high-level water tanks is effectively reduced, and the device is more convenient to mount and carry;
the pump station 5 is arranged to supply water for the left bank high-level water tank 1 and the right bank high-level water tank 2 together, so that the occupation amount of managers, equipment and materials is effectively reduced, the operation and management are convenient, the resource utilization rate is improved, and the cost can be effectively reduced;
the utility model discloses need not to supply water according to the peak water consumption at any time, simultaneously owing to realized the principle of communicating pipe, the water pressure of consequently a plurality of dam sections of dam is balanced relatively, and the water pressure that bears in raceway 4 is less to it is lower to requirements such as the wall thickness of pipeline and material, construction cost is lower when the selection material of raceway 4.
In this embodiment, be connected with delivery pipe 8 on the delivery port of pump station 5, the one end that delivery pipe 8 kept away from pump station 5 stretches into to left bank high-order pond 1 in by left bank high-order pond 1 top.
It should be noted that, because the left bank high-level water tank 1 directly receives the water supply of the pump station 5, the bottom of the left bank high-level water tank 1 is easy to have impurities after precipitation, and the water supply pipe 8 is communicated with the top of the left bank high-level water tank 1 to avoid water flow from disturbing impurities when water enters, so that the water quality is influenced.
In this embodiment, a water level sensor is arranged in the high-level water tank 1 on the left bank.
In this embodiment, the water level sensor is a DX-WLX-1 type water level sensor.
In this embodiment, the water level sensor transmits the monitored water level elevation of the left bank high-level water tank 1 to the control center of the pump station 5, and the pump station 5 works to control the water supply to the left bank high-level water tank 1, when the water level elevation of the left bank high-level water tank 1 is lower than the height required by construction water, and extracts river 10 to supply water to the left bank high-level water tank 1 until the set highest water level is reached, and the water supply is stopped.
Under normal conditions, according to the principle of the communicating vessel, the water level elevations of the left bank high-level water tank 1 and the right bank high-level water tank 2 are the same, and when the left bank high-level water tank 1 reaches the set highest water level, the right bank high-level water tank 2 also reaches the set highest water level and stops supplying water at the moment.
In this embodiment, the distance between one end of the water pipe 4 and the bottom of the high-level water tank 1 on the left bank is 15cm to 20cm, and the distance between one end of the water pipe 4 and the bottom of the high-level water tank 2 on the right bank is 15cm to 20 cm.
It should be noted that, because the high-order pond of left bank 1 directly receives the water supply of pump station 5, therefore 1 bottom in the high-order pond of left bank easily has impurity after deposiing, and delivery pipe 8 and 1 top intercommunication in the high-order pond of left bank can avoid the rivers to disturb impurity when intaking, influence quality of water, and raceway 4 sets up on the pool wall apart from 1 bottom in the high-order pond of left bank 15cm height, guarantees that the water of output is the water after deposiing, guarantees the clean of construction water.
The dam construction water supply of cofferdam water conservancy diversion in stage is adopted during this embodiment actual construction, divides the second phase, and construction right bank behind the earlier construction left bank need be divided into three stage, first stage: the concrete construction water supply during the first diversion period, at the moment, a first cofferdam 11 is constructed, and for convenience of water taking, a pump station 5 and a left bank high-level water pool 1 are arranged on the upstream side; and a second stage: during the second stage diversion, concrete construction water supply is carried out, at the moment, a second stage cofferdam 12 is constructed, as river water is adjusted to pass through a diversion building, the upstream water level rises, and the fluctuation of the upstream river surface water level is large during rainy season, a pump station 5 and a left bank high-level water pool 1 are required to be moved to the downstream side of a dam 3, and meanwhile, a right bank high-level water pool 2 is arranged to communicate the left bank high-level water pool 1 and the right bank high-level water pool 2 so as to meet the requirement of concrete construction of the right bank; and a third stage: and supplying water for concrete construction on the upper part of the dam.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (4)
1. The utility model provides a concrete dam construction water supply system which characterized in that: including left bank high-order pond (1), right bank high-order pond (2), wear to establish at inside raceway (4) of dam (3), and pump station (5) of being connected with left bank high-order pond (1), the one end and the left bank high-order pond (1) intercommunication of raceway (4), the clearance has between the one end of raceway (4) and the bottom of left bank high-order pond (1), the other end and the right bank high-order pond (2) intercommunication of raceway (4), the clearance has between the other end of raceway (4) and the bottom of right bank high-order pond (2), left bank high-order pond (1) top and right bank high-order pond (2) top all are located same horizontal plane, be connected with a plurality of outlet pipes (7) that extend dam work face (6) on raceway (4), be provided with the valve on outlet pipe (7).
2. The water supply system for concrete dam construction according to claim 1, wherein: the water supply pipe (8) is connected to a water outlet of the pump station (5), and one end, far away from the pump station (5), of the water supply pipe (8) extends into the left bank high-level water tank (1) from the top of the left bank high-level water tank (1).
3. The water supply system for concrete dam construction according to claim 1, wherein: and a water level sensor is arranged in the left bank high-level water tank (1).
4. The water supply system for concrete dam construction according to claim 1, wherein: the distance between one end of the water pipe (4) and the bottom of the left bank high-level water tank (1) is 15-20 cm, and the distance between one end of the water pipe (4) and the bottom of the right bank high-level water tank (2) is 15-20 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120247633.8U CN214884021U (en) | 2021-01-28 | 2021-01-28 | Water supply system for concrete dam construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120247633.8U CN214884021U (en) | 2021-01-28 | 2021-01-28 | Water supply system for concrete dam construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214884021U true CN214884021U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120247633.8U Active CN214884021U (en) | 2021-01-28 | 2021-01-28 | Water supply system for concrete dam construction |
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| Country | Link |
|---|---|
| CN (1) | CN214884021U (en) |
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2021
- 2021-01-28 CN CN202120247633.8U patent/CN214884021U/en active Active
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