CN104074234B - The interior river intake structure of electric power plant circulating water system and construction method thereof - Google Patents
The interior river intake structure of electric power plant circulating water system and construction method thereof Download PDFInfo
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- CN104074234B CN104074234B CN201410338633.3A CN201410338633A CN104074234B CN 104074234 B CN104074234 B CN 104074234B CN 201410338633 A CN201410338633 A CN 201410338633A CN 104074234 B CN104074234 B CN 104074234B
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Abstract
The present invention relates to a kind of inland river intake structure and construction method thereof of electric power plant circulating water system, its structure comprises pile foundation and water intake, and described pile foundation is formed by burying many spud piles being inserted in riverbed, inland river, and the upper end of whole spud pile is in same level; Described water intake is integral type steel concrete frame structure, is provided with the installation groove corresponding with pile foundation spud pile in the bottom of water intake, and water intake utilizes the direct snapping of this installation groove to be fixedly mounted in pile foundation, forms sealed collecting well; Be provided with water inlet and delivery port at the sidewall of water intake, described water inlet is located at the top of sealed collecting well, and delivery port is located at the bottom of sealed collecting well, and delivery port is connected with intake pipe, forms sealed rigidity inland river intake structure.The present invention also discloses the construction method of its structure, and this structural stability is good, ensure that structural safety is reliable, and construction method scheme is simple, be conducive to the beneficial effects such as accelerating construction progress.
Description
Technical field
The present invention relates to a kind of inland river intake structure and construction method thereof of electric power plant circulating water system, be applicable to set up long-term supply water the water intaking structure of water intaking and the construction of structure thereof in subaqueous work piling.Belong to electric power plant circulating water system and arranging thing structure and technical field of construction.
Background technology
At present, in the power plant building system of inland, reclaimed water system generally adopts secondary cycle water system, need build intake water intaking as make up water in inland river.When features as poor geologic condition, water intaking port needs by connecting pile foundation, but how described water intaking end connects into pile foundation the problem being and needing to solve.The water intaking port of existing technology mainly contains two kinds of form of structure: 1, water-fetching head adopts steel design, and pile foundation adopts steel pipe pile, and water-fetching head is effectively connected by bolt with steel pipe pile.There is following shortcoming in it: due to water-fetching head adopt steel work, its less stable, water-fetching head need consider anticorrosion, overall cost and maintenance cost higher.2, water-fetching head adopts cast-in-place concrete structure, pile foundation adopts steel pipe pile or pile tube, there is following shortcoming in it: needs to form dry work environment, the working measures such as cofferdam need be considered, construction period is longer, cofferdam costly, and comparatively large for the engineering depth of water, geology is poor, when not possessing the condition forming dry work, water-fetching head adopts cast-in-place concrete structure to be infeasible.
Summary of the invention
An object of the present invention, is in order under the prerequisite reducing construction costs, guarantee structural stability, provides a kind of inland river intake structure of electric power plant circulating water system.This inland river intake structure overcomes prior art to be needed to form dry work environment, and need consider the working measures such as cofferdam, construction period is longer, cofferdam defect costly.
Object two of the present invention is construction methods of the inland river intake structure in order to provide a kind of electric power plant circulating water system.
An object of the present invention can reach by following technical solution:
The inland river intake structure of electric power plant circulating water system, comprises pile foundation and water intake, and described pile foundation is formed by burying many spud piles being inserted in riverbed, inland river, and the upper end of whole spud pile is in same level; Described water intake is integral type steel concrete frame structure, is provided with the installation groove corresponding with pile foundation spud pile in the bottom of water intake, and water intake utilizes the direct snapping of this installation groove to be fixedly mounted in pile foundation, forms sealed collecting well; Be located at the top of sealed collecting well at the sidewall of the water intake water inlet be provided with described in water inlet and delivery port, delivery port is located at the bottom of sealed collecting well, and delivery port is connected with intake pipe, forms sealed rigidity inland river intake structure.
An object of the present invention can also reach by following technical solution:
Further, described water-fetching head is precast concrete, is provided with anchor block in the bottom of water intake, and described installation groove is located on anchor block.
Further, the main part of described water intake is oblong-shaped, respectively extends a triangle at two ends of described main part, forms flow-guiding structure.
Further, in water intake, maintenance access with cover is provided with.
Further, described flow-guiding structure flows to along river and arranges, and forms the side wall of water intake.
Further, be provided with screen pack in water inlet, this screen pack is propped up to install side by side by many stainless steel steel and forms; Steel sleeve is embedded with at water outlet.
Further, described many spud piles are made up of buried steel pipe in riverbed, form steel management system pile foundation.
Two of object of the present invention can reach by following technical solution:
The construction method of the inland river intake structure of foregoing electric power plant circulating water system, is characterized in that comprising the steps:
1) in the riverbed in inland river, choose position, excavate top layer mud, in selected position by the interval piling of establishing, make the top of whole spud pile in same level, form the pile foundation of the pile foundation height be made up of many spud piles;
2) prefabricated steel concrete water intake on land, reserves the groove corresponding with the spud pile upper end size and dimension of pile foundation in the bottom of water intake; Be provided with water inlet and delivery port at the sidewall of water intake, described water inlet is located at the top of water intake, and delivery port is located at the bottom of water intake
3) utilize above-water hoisting construction equipment, water intake snapping is arranged in pile foundation, fixing on the spud pile being directly buckled in pile foundation by the groove of water intake, form sealed collecting well;
4) be connected with intake pipe at delivery port, form sealed rigidity inland river intake structure.
Two of object of the present invention can also reach by following technical solution:
Further, described foundation pile adopts steel pipe pile, cutting flat, making each foundation pile upper end be same level when installing water intake by each foundation pile.
Further, at hypomere and the intake pipe periphery Cast-in-situ Piles in Sand-filling of water intake, sand bed utilizes stone compress compacting, avoid running off, form riverbed; Described riverbed is made up of the rock layer compacting on the backfill layer of sand of low layer and layer of sand.
The present invention has following outstanding advantages and remarkable result:
1, the present invention is owing to being set to integrated steel reinforced concrete frame structure by water intake, the installation groove corresponding with pile foundation spud pile is provided with in the bottom of water intake, water intake utilizes the direct snapping of this installation groove to be fixedly mounted in pile foundation, forms sealed collecting well; Be located at the top of sealed collecting well at the sidewall of the water intake water inlet be provided with described in water inlet and delivery port, delivery port is located at the bottom of sealed collecting well, and delivery port is connected with intake pipe, forms sealed rigidity inland river intake structure; Therefore less stable that head portion adopts steel work to exist is solved, needs to consider anticorrosion, overall cost and the more high volume of maintenance cost to there is good stability, without the need to considering anticorrosion and overall cost and the low beneficial effect of maintenance cost.
2, the present invention due to water-fetching head be precast concrete, anchor block is provided with in the bottom of water intake, described installation groove is located on anchor block, water intake utilizes the direct snapping of this installation groove to be fixedly mounted in pile foundation, therefore can operation on the water, the water-fetching head solving prior art adopts cast-in-place concrete structure to exist to be needed to form dry work environment, the working measures such as cofferdam need be considered, the problems such as construction period longer and cofferdam expense is high, there is structural stability good, guarantee structural safety is reliable, constructure scheme is simple, be conducive to the beneficial effects such as accelerating construction progress.
3, the present invention is under water intake hypomere, intake pipe and pile foundation are embedded in riverbed, and backfills layer of sand and rock layer at water intake hypomere, intake pipe and pile foundation periphery, effectively prevents water intake and pile foundation from departing from, and make water intake more firm on riverbed, functional performance is better.
4, water intake of the present invention is provided with the guide wall of V dihedral in the both sides, front and back in direction, river, produces and impacts, affect the functional performance of water intake, avoid being damaged when effectively preventing flowing water too urgent to water intake.
Accompanying drawing explanation
Fig. 1 is the layout plan of constructive embodiment 1 of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 2.
Fig. 4 is the steel sleeve scheme of installation of the embodiment of the present invention 1 water outlet.
Fig. 5 is the construction schematic diagram of the embodiment of the present invention 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment 1:
Referring to figs. 1 through the inland river intake structure of the electric power plant circulating water system shown in Fig. 5, comprise pile foundation 1 and water intake 2, described pile foundation 1 is formed by burying many spud piles being inserted in riverbed, inland river 3, and the upper end of whole spud pile is in same level; Described water intake 2 is integral type steel concrete frame structure, is provided with the installation groove 4 corresponding with pile foundation 1 spud pile in the bottom of water intake 2, and water intake 2 utilizes the direct snapping of this installation groove 4 to be fixedly mounted in pile foundation 1, forms sealed collecting well 7; Be provided with water inlet 5 and delivery port 6 at the sidewall of water intake 2, described water inlet 5 is located at the top of sealed collecting well 7, and delivery port 6 is located at the bottom of sealed collecting well 7, and delivery port 6 is connected with intake pipe 61, forms sealed rigidity inland river intake structure.
In embodiment, described water-fetching head 2 is precast concrete, is provided with anchor block 41 in the bottom of water intake 2; Described installation groove 4 is located on anchor block 41; The main part of described water intake 2 is oblong-shaped, respectively extends a triangle at two ends of described main part, forms flow-guiding structure 10; Maintenance access 14 with cover is provided with in water intake 2; Described flow-guiding structure 10 flows to along river and arranges, and forms the side wall of water intake 2; At water inlet 5, place is provided with screen pack 11, this screen pack by many stainless steel steel prop up 12 side by side install form; At delivery port 5, place is embedded with steel sleeve 13, and the fixed installation being convenient to intake pipe connects; Described many spud piles are made up of buried steel pipe in riverbed, form steel management system pile foundation 1.
The construction method of the inland river intake structure of above-mentioned electric power plant circulating water system, comprises the steps:
1) in the riverbed in inland river, choose position, excavate top layer mud, in selected position by the interval piling of establishing, make the top of whole spud pile in same level, form the pile foundation of pile foundation 1 height be made up of many spud piles;
2) prefabricated steel concrete water intake 2 on land, reserves the groove 4 corresponding with the spud pile upper end size and dimension of pile foundation in the bottom of water intake; Be provided with water inlet 5 and delivery port 6 at the sidewall of water intake 2, described water inlet 5 is located at the top of water intake 2, and delivery port 6 is located at the bottom of water intake 2
3) utilize above-water hoisting construction equipment, water intake 2 snapping is arranged in pile foundation, fixing on the spud pile being directly buckled in pile foundation by the groove 4 of water intake 2, form sealed collecting well 7;
4) be connected with intake pipe 61 at delivery port 6, form sealed rigidity inland river intake structure.
In concrete grammar is implemented, described foundation pile 1 adopts steel pipe pile, cutting flat, making each foundation pile upper end be same level when installing water intake by each foundation pile; At hypomere and the intake pipe periphery Cast-in-situ Piles in Sand-filling of water intake, sand bed utilizes stone compress compacting, avoid running off, form riverbed; Described riverbed 3 is made up of rock layer 9 compacting on the backfill layer of sand 8 of low layer and layer of sand 8.
Embodiment 2
The difference of the technical characteristic described in the present embodiment 2 and embodiment 1 is, the inland river intake structure of electric power plant circulating water system is built in the region, Ha Noi of water flow stationary, saves the flow-guiding structure 10 of the triangle formation respectively extended at water intake 2 main part two end.All the other are with embodiment 1.
The present invention is applied to certain larger gas power plant, inland makeup Water System, and intake offshore distance about 220m, the thick about 40m of mud of intake position, seashore physical features is smooth.The pile foundation 1 of described water-fetching head adopts 4 diameters to be 600mm steel pipe pile, the long 50m of stake.Water intake adopts precast concrete after the making of dry ground is shaping, adopts above-water hoisting construction.Installation groove 4 reserved time prefabricated for water-fetching head 2 is directly buckled on steel pipe pile, water intake 2 is effectively fixedly connected with pile foundation 1, then at pile foundation 1 and water intake 2 periphery backfill layer of sand 8, and on layer of sand, utilize rock layer 9 to compress compacting.From construction and operating condition, respond well, meet designing requirement.
Claims (9)
1. the inland river intake structure of electric power plant circulating water system, comprises pile foundation (1) and water intake (2), it is characterized in that: described pile foundation (1) is formed by burying many spud piles being inserted in riverbed, inland river (3), and the upper end of whole spud pile is in same level; Described water intake (2) is integral type steel concrete frame structure, the installation groove (4) corresponding with pile foundation (1) spud pile is provided with in the bottom of water intake (2), water intake (2) utilizes the direct snapping of this installation groove (4) to be fixedly mounted in pile foundation (1), forms sealed collecting well (7); Water inlet (5) and delivery port (6) is provided with at the sidewall of water intake (2), described water inlet (5) is located at the top of sealed collecting well (7), delivery port (6) is located at the bottom of sealed collecting well (7), delivery port (6) is connected with intake pipe (61), forms sealed rigidity inland river intake structure; Described water intake (2) is precast concrete, is provided with anchor block (41) in the bottom of water intake (2), and described installation groove (4) is located on anchor block (41).
2. the inland river intake structure of electric power plant circulating water system according to claim 1, is characterized in that: the main part of described water intake (2) is oblong-shaped, respectively extends a triangle at two ends of described main part, forms flow-guiding structure (10).
3. the inland river intake structure of electric power plant circulating water system according to claim 1, is characterized in that: in water intake (2), be provided with maintenance access (14) with cover.
4. the inland river intake structure of electric power plant circulating water system according to claim 2, is characterized in that: described flow-guiding structure (10) flows to along river and arranges, and forms the side wall of water intake (2).
5. the inland river intake structure of electric power plant circulating water system according to claim 1, is characterized in that: be provided with screen pack (11) at water inlet (5) place, and this screen pack props up (12) by many stainless steel steel and installs side by side and form; Steel sleeve (13) is embedded with at delivery port (5) place.
6. the inland river intake structure of electric power plant circulating water system according to claim 1, is characterized in that: described many spud piles are made up of buried steel pipe in riverbed, forms steel pipe type pile foundation (1).
7. the construction method of the inland river intake structure of electric power plant circulating water system according to claim 1, is characterized in that comprising the steps:
1) in the riverbed in inland river, choose position, excavate top layer mud, in selected position by the interval piling of establishing, make the top of whole spud pile in same level, form the pile foundation (1) be made up of many spud piles;
2) prefabricated steel concrete water intake (2) on land, reserves the groove (4) corresponding with the spud pile upper end size and dimension of pile foundation in the bottom of water intake; Be provided with water inlet (5) and delivery port (6) at the sidewall of water intake (2), described water inlet (5) is located at the top of water intake (2), and delivery port (6) is located at the bottom of water intake (2);
3) utilize above-water hoisting construction equipment, water intake (2) snapping is arranged in pile foundation, fixing on the spud pile being directly buckled in pile foundation by the groove (4) of water intake (2), form sealed collecting well (7);
4) be connected with intake pipe (61) at delivery port (6), form sealed rigidity inland river intake structure.
8. the construction method of the inland river intake structure of electric power plant circulating water system according to claim 7, is characterized in that: described pile foundation (1) adopts steel pipe pile, cutting flat, making each foundation pile upper end be same level when installing water intake by each foundation pile.
9. the construction method of the inland river intake structure of the electric power plant circulating water system according to claim 7 or 8, is characterized in that: at hypomere and the intake pipe periphery Cast-in-situ Piles in Sand-filling of water intake, sand bed utilizes stone compress compacting, avoids running off, forms riverbed; Described riverbed (3) is made up of rock layer (9) compacting on the backfill layer of sand (8) of low layer and layer of sand (8).
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| CN201410338633.3A CN104074234B (en) | 2014-07-16 | 2014-07-16 | The interior river intake structure of electric power plant circulating water system and construction method thereof |
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| CN104074234B true CN104074234B (en) | 2016-02-03 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108374450A (en) * | 2018-03-01 | 2018-08-07 | 中国五冶集团有限公司 | A kind of water intake in river |
| CN108867757A (en) * | 2018-07-16 | 2018-11-23 | 中交第三航务工程勘察设计院有限公司 | A kind of prefabricated armored concrete water intaking header structure and its construction method |
| CN111173073B (en) * | 2020-01-07 | 2021-04-23 | 中国能源建设集团广东省电力设计研究院有限公司 | Novel cylindrical steel structure water taking and draining port system and design method thereof |
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