CN106869245A - Suitable for Mountain Area high water level change fully-loaded stream can submerged lift pumping station - Google Patents
Suitable for Mountain Area high water level change fully-loaded stream can submerged lift pumping station Download PDFInfo
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- CN106869245A CN106869245A CN201710106044.6A CN201710106044A CN106869245A CN 106869245 A CN106869245 A CN 106869245A CN 201710106044 A CN201710106044 A CN 201710106044A CN 106869245 A CN106869245 A CN 106869245A
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- pump
- silt
- water level
- mountain area
- pipe
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
- E03B5/02—Use of pumping plants or installations; Layouts thereof arranged in buildings
- E03B5/025—Use of pumping plants or installations; Layouts thereof arranged in buildings with surface tanks
Abstract
The invention discloses one kind can submerged lift pumping station, it includes pump house, inside pump house set water inlet silt buffering area and sedimentation and Pump Suction pool；Along parallel to water (flow) direction interval setting multiple pump hole in the sedimentation and Pump Suction pool, submersible sewage pump is respectively mounted in multiple pump holes；It is respectively mounted that silt is counter to clean pipe on the outlet pipe of the submersible sewage pump, the anti-water side for cleaning pipe of the silt is stretched into pump hole；U-shaped or annular tube head are set on the anti-water side for cleaning pipe of silt, and the anti-pipe ring that cleans of silt is arranged around immersible pump and along pump crater wall, and multiple perforates are respectively provided with along body direction on the U-shaped or annular tube head.The lift pumping station that the present invention is provided is particularly well-suited to the river that Mountain Area high water level changes high concentration of sediment, can be smoothed out water lift operation in flood period, and do not result in the Sediment Siltation in pump house and submersible sewage pump damage phenomenon；The present invention also drastically reduce the area the difficulty of construction and construction investment cost of Mountain Area high water level change river lift pumping station.
Description
Technical field
The invention belongs to water engineering facility technical field, and in particular to one kind is applied to Mountain Area high water level and changes many mud
What Shahe was flowed can submerged lift pumping station.
Background technology
In hydraulic engineering field, it usually needs the water source (such as rivers) to lower carries out water lift operation, so that water is sent
Meet toward eminence agricultural irrigation, urban water supply or other with the demand of water, now often build lift pumping station.And for
The river of southwestern Mountain Area, there is the characteristics of rich withered seasonal variations of river level are big, and sediment charge is higher, such as canal in Sichuan Province in it
River, the rich dry season water level luffing of its water level is close to 30 meters, and turbidity is up to 5000~10000NTU, even more high.In such river
When being fetched water on stream, traditional lift pumping station due to using can not submerged design, therefore be provided in river bank more
Higher position, it is generally required using the intake pipe up to tens of meters, and sets the lift pumping station of nearly 40 meters of total height, in pumping plant
Maintenance platform and bank set access bridge more long, and construction investment is huge；And therefore class river turbidity is larger, sediment charge
Height, Sediment Siltation is easily caused in pump house or is damaged the facility such as lift pump and is caused the pumping plant cannot to run.Such lift pumping station
Higher to the requirement of river geological conditions, difficulty of construction is larger, and not only cost is high, and operation maintenance and maintenance are inconvenient, together
When silt easily in priming reservoir alluvial, and also river flood passage is impacted.
With developing rapidly for modern science and technology, people propose higher wanting to the convenience and practicality of extracting water facility
Ask, it is traditional can not submerged lift pumping station cannot meet the demand of current social development, it is particularly vast in China
Southwestern Mountain Area, once running into generation flood, will be unable to meet the demand of industrial and agricultural production, and great warp is brought to industrial and agricultural production
Ji loss.Therefore, it is badly in need of developing a kind of new lift pumping station, the typical high water level change in southwestern Mountain Area can be applied to
And the water lift operation of fully-loaded stream.
The content of the invention
The purpose of the present invention is exactly in order to solve the above-mentioned technical problem, and to provide a kind of Mountain Area high water level that is applied to and change
And fully-loaded stream can submerged lift pumping station, solve the shortcoming that traditional lift pumping station can not flood, it is adaptable to southwestern massif
The severe river environment that area's river turbidity is high and sediment charge is big, does not result in lift pump damage or pump house alluvial and makes lift pump
Standing to be run, and water lift operation can be smoothed out when flood breaks out, and meet industrial and agricultural production demand；And need not build higher
Pumping plant facility, pump house set it is relatively low, day-to-day operation is easy to maintenance, greatly reduces difficulty of construction and construction investment.
To achieve these goals, the technical solution adopted by the present invention is as follows：
It is a kind of suitable for Mountain Area high water level change fully-loaded stream can submerged lift pumping station, including pump house is described
One side of pump house sets trash rack, and the mesh openings direction of the trash rack is tangent with flow direction；The pump house
It is interior to be set gradually into water silt buffering area and sedimentation and Pump Suction pool along current tangential direction, the sedimentation and water
Bottom level of the bottom level in pumping pool less than water inlet silt buffering area；Along flat in the sedimentation and Pump Suction pool
Row is respectively mounted submersible sewage pump in flow direction direction interval setting multiple pump hole in the multiple pump hole；The water outlet of the submersible sewage pump
It is respectively mounted that silt is counter to clean pipe on pipe, the anti-water inlet end for cleaning pipe of the silt is connected with outlet pipe, and silt is counter to clean going out for pipe
Water end (W.E.) is stretched into pump hole；The anti-cleaning tube head of U-shaped or annular, the anti-cleaning pipe are set on the anti-water side for cleaning pipe of silt
Headring arranges that anti-the cleaning on tube head is respectively provided with multiple along U-shaped or looping tube direction around submersible sewage pump and along pump crater wall
Perforate, the pore size of the perforate is 20~30mm, and the centre-to-centre spacing of each perforate is 20~30cm.
It is of the invention can submerged lift pumping station be directed to that southwestern Mountain Area easily occurs flood and river flood stages water level is big, flood peak
The characteristics of lasting short (general 3~7 days), sets water inlet silt buffering area and sedimentation and Pump Suction pool inside pump house,
Avoid a large amount of silts carried when flood breaks out to a certain extent to be deposited directly on around submersible sewage pump, reduction causes mud in pump house
Sand alluvial damages the phenomenon such as submersible sewage pump and occurs, it is to avoid flood causes water lift operation to shut down when breaking out, and the structure sets
It is very necessary to count in the normal operation for ensureing submersible sewage pump.
Present invention is alternatively directed to southwestern Mountain Area river turbidity is larger, the distinguishing feature that sediment charge is high, further in water pump
The anti-anti- cleaning pipe for cleaning pipe, and U-shaped or annular being set on the anti-water side for cleaning pipe of silt of silt is mounted with outlet pipe
Head, anti-cleaning tube head arranges that anti-cleaning pipe can be in water lift operation directly using in outlet pipe around submersible sewage pump and along pump crater wall
Water realize to pump hole in silt flushing, it is to avoid the alluvial of silt and cannot discharge；And the anti-cleaning tube head ring of U-shaped or annular
Arranged around submersible sewage pump and along pump crater wall, designed by the open-celled structure on anti-cleaning tube head, can fully realized to heap in pump hole
Long-pending silt is impacted and is stirred, thus it is convenient by pump cheat in silt taken away again by submersible sewage pump discharge, greatly reduce
Submersible sewage pump impaired probability, it is entirely avoided the silting phenomenon occurred in pumping plant, it is ensured that lift pumping station it is smooth
Operating, industrial or agricultural uses water Production requirement when meeting flood period well.
The present invention is additionally provided with the trash rack tangent with flow direction in pump house side, can further reduce flood hair
Into the quantity of sand and mud in pumping plant when making, remaining silt can flow away along water (flow) direction.The present invention can be normal in river by pumping station layout
Near water level, and without setting the intake pipe up to tens of meters, and the whole height of lift pumping station is greatly reduced, water lift
Can still keep running well when pumping plant is inundated with flood, the maintenance of water pump can be carried out in river ordinary water level, difficulty of construction
It is minimized, construction cost is greatly reduced, and safeguards and overhaul more convenient.
The present invention is by trash rack, water inlet silt buffering area and sedimentation and Pump Suction pool, silt is counter cleans pipe
With the collective effect of anti-cleaning tube head, the flushing and discharge work of silt in pump house are realized well so that without mud in pump house
Sand alluvial, will not occur immersible pump and damage phenomenon, can be normally carried out water lift operation when flood period is met.
Further, training wall is also set up in the sedimentation and Pump Suction pool, water conservancy diversion is passed through between multiple pump holes
Wall separates, and the height (terrain clearance) of the training wall is 0.5~0.8m.Training wall is played and separates the work that pump hole carries out water conservancy diversion
With, silt in flood can along training wall in pump hole deposition, and be rinsed and take away by the anti-pipe that cleans of silt, will not
Silt is caused in the outer alluvial in pump hole, and the silt for do not interfered with when silt is rinsed between adjacent pump hole is scattered everywhere.
Further, the size of mesh opening of the trash rack is 10~30mm × 10~30mm, and mesh wire diameter is 1~3mm.
The size and mesh wire diameter of trash rack are designed according to the high concentrtion feature in southwestern Mountain Area river, can effectively be hindered
Substantially floating object and water body impurity when gear flood breaks out, and prevent sludge from being piled up on trash rack.
Further, the water inlet silt buffering area is one domatic, and described domatic and river bottom is in 5%~10% slope
Degree.The gradient can effectively play the effect of buffering silt when a large amount of muddy current enter pump house, in may be such that river
Silt quickly smoothly enters in sedimentation and Pump Suction pool to be piled up, and is rinsed by the anti-pipe that cleans of silt in subsequent process
Discharged by submersible sewage pump.
Further, step is set between the sedimentation and Pump Suction pool and water inlet silt buffering area or vertical is fallen
Bank, its height (terrain clearance) is 0.3~0.8m.The design of the structure is on the one hand convenient to be safeguarded and is overhauled to submersible sewage pump,
On the other hand the silt in sedimentation and Pump Suction pool can be prevented from blowing back into water silt buffering area.
Further, on the sloping bank in river, the ordinary water level in pump house distance from top river is highly 0.5 to the pump room installation
~1.0m, can be safeguarded and be overhauled in ordinary water level to pump house, reduce work load.
Further, the pump shaft line spacing between the adjacent submersible sewage pump is 1.0~1.5m.The distance is more moderate, many
Individual submersible sewage pump can preferably meet daily water lift operation.
Further, the submersible sewage pump (referring to pump central axis) of the close sedimentation and Pump Suction pool side pool wall with
The distance between the pool wall is 0.5~0.75m.Spacing distance between the submersible sewage pump and sedimentation and Pump Suction pool pool wall
Ensure that submersible sewage pump is discharged well to the sludge in pump hole, prevent sludge from excessively disperseing to be discharged without easy cleaning, together
When avoid interference of the pool wall to water feeding of water pump.
Further, the anti-water inlet end for cleaning pipe of the silt sets valve.Valve is closed before flood breaking-out, can
Prevent river excessively muddy and block that silt is counter to clean pipe, valve is then turned on after flood peak landing, realize in pump house and latent dirty
Silt around pump is rinsed.
Further, the anti-pipe that cleans of the silt is using the steel pipes of 50~DN of DN 100, PE pipes or PPR pipe.The model it is anti-
Flush pipe can bear the larger impulsive force of backwashing water.
It is of the invention can submerged lift pumping station in addition to comprising said structure, can also include water-fetching head, intake pool, suction
The structure such as pond and water pump control and distribution computer room, remaining each facilities and equipment is carried out according to the design of conventional lift pumping station
Install and connect.
Compared with prior art, the beneficial effects of the present invention are：
(1) present invention design can submerged lift pumping station, can it is big in southwestern Mountain Area SEA LEVEL VARIATION, silt is more, turbidity
River high is built and is used, and is running into the work that can also be run well when flood breaks out, and the demand of industrial and agricultural production is met very well；
(2) it is of the invention can submerged lift pumping station can be located at more than ordinary water level river surface 0.5~1.0m, greatly reduce and apply
Work difficulty and construction cost, it is convenient pump house is overhauled in ordinary water level；Construction and construction cost can not flood than mountain area tradition
The construction cost for there be not formula lift pumping station reduces 1/5th or so；Simultaneously because the height of this pumping plant subtracts significantly than traditional pump station
It is small, thus river flood discharge will not be caused in river course flood hinder；
(3) it is of the invention can submerged lift pumping station the alluvial phenomenon of silt in pump house will not occur, a large amount of silts can be
Silt is counter to be cleaned in the presence of pipe and smoothly takes away discharge by submersible sewage pump, will not damage the facilities such as immersible pump, and without substantial amounts of clear
The work of reason and discharge pump house silt, significantly reduces the burden of staff.
Brief description of the drawings
Fig. 1 is pump room structure of the invention along the top view perpendicular to water surface direction；
Fig. 2 is pump room structure of the invention along the front view parallel to water (flow) direction；
Fig. 3 is pump hole of the invention and the anti-structural representation for cleaning pipe of silt；
Wherein, 1 is pump house, and 2 is trash rack, and 3 is water inlet silt buffering area, and 4 is sedimentation and Pump Suction pool, 5
For pump is cheated, 6 is submersible sewage pump, and 7 is outlet pipe, and 8 is that silt is counter cleans pipe, and 9 is anti-cleaning tube head, and 10 is perforate, and 11 is training wall,
12 is valve.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments and accompanying drawing pair
The present invention is specifically described, it is necessary to, it is noted that following examples are used only for being explained and illustrated the present invention, and
It is not used in the restriction present invention.Those skilled in the art are according to some nonessential improvement and tune that foregoing invention content is made
It is whole, still fall within protection scope of the present invention.
Embodiment 1
As Figure 1-3, for one kind for providing of the present invention can submerged lift pumping station, including pump house 1, pump house 1 is arranged on
On the sloping bank in river, the ordinary water level in the distance from top river of pump house 1 is highly 0.5m.In a side of pump house 1, water inlet lattice are set
Grid 2, the size of mesh opening of trash rack 2 is 20mm × 20mm, and mesh wire diameter is 2mm, the mesh openings direction of trash rack 2 and water
Stream flows to tangent；Set gradually into water silt buffering area 3 and sedimentation and Pump Suction pool along current tangential direction in pump house 1
4, step is set between sedimentation and Pump Suction pool 4 and water inlet silt buffering area 3, shoulder height is 0.3m, enters cement
Husky buffering area 3 is one domatic, and it is 5% with the gradient of river bottom；The bottom level in sedimentation and Pump Suction pool 4 is less than
The bottom level of water inlet silt buffering area 3；5 are cheated along parallel to water (flow) direction interval setting multiple pump in water inlet sedimentation area 4,
Separated by training wall 11 between multiple pump holes 5, the height of training wall 11 is 0.5m；Submersible sewage pump is mounted in multiple pump holes 5
6, the pump shaft line spacing between adjacent submersible sewage pump is 1.5m, near sedimentation and the submersible sewage pump of the side pool wall of Pump Suction pool 4
It is 0.75m with the distance between the pool wall；It is respectively mounted that silt is counter to clean pipe 8 on the outlet pipe 7 of submersible sewage pump 6, silt is counter to clean pipe 8
Using the steel pipes of DN 50, its water inlet end is connected with outlet pipe 7, and valve 12, the anti-water outlet for cleaning pipe 8 of silt are set on water inlet end
Stretch into pump hole 5 at end；The anti-cleaning tube head 9 of U-shaped is set on the anti-water side for cleaning pipe 8 of silt, on anti-cleaning tube head 9 along
U-tube body direction is respectively provided with multiple perforates 10, and the pore size of perforate 10 is 20mm, and the centre-to-centre spacing of each perforate is 20cm.
The present invention also includes the control of water-fetching head, intake pool, priming reservoir and water pump and distribution computer room, and each facilities and equipment is equal
According to the design and installation of conventional lift pumping station.
Being built in Sichuan Province Qu Jiang according to design of the invention can submerged lift pumping station, water lift fortune after the completion of construction
Row was up to for 1 year, and period occurs flood twice, do not carry out manual cleaning to the silt in pump house, and submersible sewage pump is remained just
Normal operation, without silting phenomenon in pump house.
Embodiment 2
According to the conceptual design of embodiment 1 it is a kind of can submerged lift pumping station, the wherein distance from top river of pump house 1
Ordinary water level is highly 1.0m, and the size of mesh opening of trash rack 2 is 10mm × 10mm, and mesh wire diameter is 1mm, sedimentation and water pump
Vertical the falling of setting is cut between suction zones 4 and water inlet silt buffering area 3, falls and cuts height for 0.8m, and intake silt buffering area 3 and river
The gradient of bottom is 10%；The height of training wall 11 is 0.5m, and the pump shaft line spacing between adjacent submersible sewage pump is 1.0m, near mud
The distance between submersible sewage pump and the pool wall of sand deposition and the side pool wall of Pump Suction pool 4 are 0.5m, and the anti-pipe 8 that cleans of silt is used
PE is managed, and the anti-cleaning tube head 9 of annular is set on the anti-water side for cleaning pipe 8 of silt, along looping tube on anti-cleaning tube head 9
Direction is respectively provided with multiple perforates 10, and the pore size of perforate 10 is 30mm, and the centre-to-centre spacing of each perforate is 30cm, remaining design with
Embodiment 1 is identical.
Being built in Sichuan Province Qu Jiang according to above-mentioned design can submerged lift pumping station, water lift operation length after the completion of construction
Up to 1 year, there is flood twice in period, not carry out manual cleaning to the silt in pump house, and submersible sewage pump remains normal fortune
Change a job work, without silting phenomenon in pump house.
Comparative example 1
According to the design of embodiment 1, except not designing, silt is counter to clean pipeline, and remaining structure is same as Example 1,
Qu Jiang same section of waters in Sichuan Province is tested simultaneously, and water lift was run in 1 year, and silting phenomenon is more serious in pump house,
Submersible sewage pump shuts down phenomenon after flood twice, is just able to recover normal work after need to carrying out submersible sewage pump artificial spoil disposal
Make.Comparative example 2
According to the design of embodiment 1, except the anti-U-tube head cleaned on pipe of silt is transformed into linear pattern tube head, and
Perforate spacing increasing on tube head is twice, and remaining structure is same as Example 1, and in Sichuan Province, same section of waters of Qu Jiang is carried out simultaneously
Experiment, water lift was run in 1 year, and the sedimentation in pump hole is more, and Sediment Siltation is more serious around submersible sewage pump, twice flood
During submersible sewage pump occur to shut down twice phenomenon, be just able to recover normal work after artificial spoil disposal need to be carried out.
Comparative example 3
According to the design of embodiment 1, except being not provided with silt buffering area, and the size of mesh opening of trash rack is expanded to
Twice, remaining structure is same as Example 1, and in Sichuan Province, same section of waters of Qu Jiang is tested simultaneously, and water lift ran for 1 year
Interior, the silting in sedimentation area is more in pump house, and silting phenomenon is more serious around submersible sewage pump, is dived during flood twice
There is the phenomenon that once shuts down in dirty pump, be just able to recover normal work after need to carrying out the silt around submersible sewage pump artificial spoil disposal
Make.
Claims (10)
1. it is a kind of suitable for Mountain Area high water level change fully-loaded stream can submerged lift pumping station, including pump house (1), it is special
Levy and be, a side of the pump house (1) sets trash rack (2), the mesh openings direction of the trash rack (2) and water
Stream flows to tangent；Set gradually into water silt buffering area (3) and sedimentation and water along current tangential direction in the pump house (1)
Pumping pool (4), the bottom of the bottom level less than water inlet silt buffering area (3) of the sedimentation and Pump Suction pool (4)
Highly；It is described many along parallel to water (flow) direction interval setting multiple pump hole (5) in the sedimentation and Pump Suction pool (4)
Submersible sewage pump (6) is respectively mounted in individual pump hole (5)；It is respectively mounted that silt is counter to clean pipe (8), institute on the outlet pipe (7) of the submersible sewage pump (6)
State the anti-water inlet end for cleaning pipe (8) of silt to be connected with outlet pipe (7), pump hole (5) is stretched into the anti-water side for cleaning pipe (8) of silt
It is interior；The anti-cleaning tube head (9) of U-shaped or annular, anti-cleaning tube head (9) are set on the anti-water side for cleaning pipe (8) of silt
Arranged around submersible sewage pump and along pump crater wall, multiple is respectively provided with along U-shaped or looping tube direction on anti-cleaning tube head (9)
Perforate (10), the pore size of the perforate (10) is 20~30mm, and the centre-to-centre spacing of each perforate is 20~30cm.
2. it is according to claim 1 suitable for Mountain Area high water level change fully-loaded stream can submerged lift pumping station,
Characterized in that, also setting up training wall (11) in the sedimentation and Pump Suction pool (4), pass through between multiple pumps hole (5)
Training wall (11) separates, and the height of the training wall (11) is 0.5~0.8m.
3. it is according to claim 1 and 2 suitable for Mountain Area high water level change fully-loaded stream can submerged lift pump
Stand, it is characterised in that the size of mesh opening of the trash rack (2) is 10~30mm × 10~30mm, mesh wire diameter is 1~3mm.
4. it is according to claim 1 and 2 suitable for Mountain Area high water level change fully-loaded stream can submerged lift pump
Stand, it is characterised in that water inlet silt buffering area (3) be it is one domatic, the domatic gradient with river bottom for 5%~
10%.
5. it is according to claim 1 and 2 suitable for Mountain Area high water level change fully-loaded stream can submerged lift pump
Stand, it is characterised in that it is 0.3 that height is set between the sedimentation and Pump Suction pool (4) and water inlet silt buffering area (3)
The step of~0.8m vertically falls bank.
6. it is according to claim 1 and 2 suitable for Mountain Area high water level change fully-loaded stream can submerged lift pump
Stand, it is characterised in that on the sloping bank in river, the ordinary water level in pump house (1) distance from top river is highly the pump house (1)
0.5~1.0m.
7. it is according to claim 1 and 2 suitable for Mountain Area high water level change fully-loaded stream can submerged lift pump
Stand, it is characterised in that the pump shaft line spacing between the adjacent submersible sewage pump is 1.0~1.5m.
8. it is according to claim 1 and 2 suitable for Mountain Area high water level change fully-loaded stream can submerged lift pump
Stand, it is characterised in that between the close sedimentation and the submersible sewage pump and the pool wall of Pump Suction pool (4) side pool wall away from
From being 0.5~0.75m.
9. it is according to claim 1 and 2 suitable for Mountain Area high water level change fully-loaded stream can submerged lift pump
Stand, it is characterised in that the anti-water inlet end for cleaning pipe (8) of the silt sets valve (12).
10. it is according to claim 1 and 2 suitable for Mountain Area high water level change fully-loaded stream can submerged lift pump
Stand, it is characterised in that the anti-pipe (8) that cleans of the silt is using the steel pipes of 50~DN of DN 100, PE pipes or PPR pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106044.6A CN106869245B (en) | 2017-02-27 | 2017-02-27 | Suitable for Mountain Area high water level variation fully-loaded stream can submerged lift pumping station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106044.6A CN106869245B (en) | 2017-02-27 | 2017-02-27 | Suitable for Mountain Area high water level variation fully-loaded stream can submerged lift pumping station |
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| Publication Number | Publication Date |
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| CN106869245A true CN106869245A (en) | 2017-06-20 |
| CN106869245B CN106869245B (en) | 2019-07-19 |
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| CN201710106044.6A Expired - Fee Related CN106869245B (en) | 2017-02-27 | 2017-02-27 | Suitable for Mountain Area high water level variation fully-loaded stream can submerged lift pumping station |
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Cited By (4)
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| CN112814078A (en) * | 2021-02-03 | 2021-05-18 | 河南省水利勘测设计研究有限公司 | Sediment cleaning method for water inlet pool of water delivery pump station |
| CN112814080A (en) * | 2021-02-03 | 2021-05-18 | 河南省水利勘测设计研究有限公司 | Method for cleaning silt in front water inlet tank of water delivery pump station |
| CN112814079A (en) * | 2021-02-03 | 2021-05-18 | 河南省水利勘测设计研究有限公司 | Method for cleaning silt in shared water inlet tank of double-water-supply pump station |
| CN113818446A (en) * | 2021-08-20 | 2021-12-21 | 杭州市市政工程集团有限公司 | Tunnel foundation pit construction method for traversing non-navigable river channel |
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| CN112814080A (en) * | 2021-02-03 | 2021-05-18 | 河南省水利勘测设计研究有限公司 | Method for cleaning silt in front water inlet tank of water delivery pump station |
| CN112814079A (en) * | 2021-02-03 | 2021-05-18 | 河南省水利勘测设计研究有限公司 | Method for cleaning silt in shared water inlet tank of double-water-supply pump station |
| CN112814078B (en) * | 2021-02-03 | 2022-08-05 | 河南省水利勘测设计研究有限公司 | Method for cleaning silt in water inlet pool of water transfer pump station |
| CN112814079B (en) * | 2021-02-03 | 2022-08-05 | 河南省水利勘测设计研究有限公司 | Method for cleaning silt in shared water inlet tank of double-water-supply pump station |
| CN112814080B (en) * | 2021-02-03 | 2022-08-09 | 河南省水利勘测设计研究有限公司 | Method for cleaning silt in front water inlet tank of water delivery pump station |
| CN113818446A (en) * | 2021-08-20 | 2021-12-21 | 杭州市市政工程集团有限公司 | Tunnel foundation pit construction method for traversing non-navigable river channel |
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| CN106869245B (en) | 2019-07-19 |
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