CN104074234A - Inland water collecting opening structure of power plant circulating water system and construction method thereof - Google Patents
Inland water collecting opening structure of power plant circulating water system and construction method thereof Download PDFInfo
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- CN104074234A CN104074234A CN201410338633.3A CN201410338633A CN104074234A CN 104074234 A CN104074234 A CN 104074234A CN 201410338633 A CN201410338633 A CN 201410338633A CN 104074234 A CN104074234 A CN 104074234A
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Abstract
The invention relates to an inland water collecting opening structure of a power plant circulating water system and a construction method thereof. The structure comprises a pile foundation and a water collecting head. The pile foundation is composed of a plurality of fixing piles which are embedded and inserted into an inland river bed, and the upper ends of all the fixing piles are placed on the same horizontal face. The water collecting head is of an integrated reinforced concrete frame body structure, mounting grooves corresponding to the fixing piles of the pile foundation are formed in the bottom of the water collecting head, and the water collecting head is directly buckled and fixedly mounted on the pile foundation through the mounting grooves so that a sealed water collecting well can be formed. A water inlet and a water outlet are formed in the side wall of the water collecting head, the water inlet is formed in the upper portion of the sealed water collecting well, and the water outlet is formed in the lower portion of the sealed water collecting well. The water outlet is connected with a water collecting pipe, so that a sealed rigidity inland water collecting opening structure is formed. The invention further discloses a construction method of the inland water collecting opening structure. The structure is good in stability, the safety and reliability of the structure are guaranteed, the construction method and scheme are simple, and the construction progress can be better accelerated.
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 in inland river intake water intaking as make up water.The in the situation that of features as poor geologic condition, water intaking port need to pass through to connect pile foundation, but how described water intaking end connects into pile foundation the problem that needs solution that is.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: because water-fetching head adopts steel work, and its less stable, water-fetching head need to be considered anticorrosion, overall cost and maintenance cost are 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: need to form dry work environment, need to consider the working measures such as cofferdam, construction period is longer, and cofferdam expense is high, and for the engineering depth of water is large, geology is poor, while not possessing the condition that forms dry work, it is infeasible that water-fetching head adopts cast-in-place concrete structure.
Summary of the invention
One of object of the present invention is in order to reduce construction costs, to guarantee, under the prerequisite of structural stability, to provide a kind of inland river intake structure of electric power plant circulating water system.This inland river intake structure overcomes prior art and need to form dry work environment, needs to consider the working measures such as cofferdam, and construction period is longer, the defect that cofferdam expense is high.
Two of object of the present invention is for a kind of construction method of inland river intake structure of electric power plant circulating water system is provided.
One of 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 forms by burying many spud piles that are inserted in riverbed, inland river, and all the upper end of spud piles 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; At the sidewall of water intake, be provided with the top that water inlet described in water inlet and delivery port is located at sealed collecting well, 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.
One of object of the present invention can also reach by following technical solution:
Further, described water-fetching head is precast concrete, in the bottom of water intake, is provided with anchor block, and described installation groove is located on anchor block.
Further, the main part of described water intake is oblong-shaped, at two ends of described main part, respectively extends a triangle, forms flow-guiding structure.
Further, in water intake, be provided with maintenance access with cover.
Further, described flow-guiding structure flows to and arranges along river, forms the side wall of water intake.
Further, at water inlet, place is provided with screen pack, and this screen pack is propped up side by side and installed and form by many stainless steel steel; At water outlet, be embedded with steel sleeve.
Further, described many spud piles consist 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, An She interval, the position piling selected, makes the top of whole spud piles in same level, forms the pile foundation of the pile foundation height being comprised of many spud piles;
2) prefabricated steel concrete water intake on land, at the reserved groove corresponding with the spud pile upper end size and dimension of pile foundation in the bottom of water intake; Sidewall at water intake is provided with water inlet and delivery port, and 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, by the groove of water intake, be directly buckled on the spud pile of pile foundation fixingly, form sealed collecting well;
4) at delivery port, be connected with intake pipe, 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, each foundation pile is cut flatly when water intake is installed, and makes each foundation pile upper end be same level.
Further, at hypomere and the intake pipe periphery Cast-in-situ Piles in Sand-filling of water intake, on sand bed, utilize stone to compress compacting, avoid running off, form riverbed; Described riverbed consists of the backfill layer of sand of low layer and the rock layer compacting on layer of sand.
The present invention has following outstanding advantages and remarkable result:
1, the present invention is because water intake is set to integrated steel reinforced concrete frame structure, in the bottom of water intake, be provided with the installation groove corresponding with pile foundation spud pile, water intake utilizes the direct snapping of this installation groove to be fixedly mounted in pile foundation, forms sealed collecting well; At the sidewall of water intake, be provided with the top that water inlet described in water inlet and delivery port is located at sealed collecting well, 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 solve less stable that head portion adopts steel work to exist, need to consider anticorrosion, overall cost and the more high volume of maintenance cost, there is good stability, without considering anticorrosion and overall cost and the low beneficial effect of maintenance cost.
2, the present invention is because water-fetching head is precast concrete, bottom at water intake is provided with anchor block, 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 operation on the water, the water-fetching head that has solved prior art adopts cast-in-place concrete structure to exist need to form dry work environment, need to consider the working measures such as cofferdam, construction period is the problem such as length and cofferdam expense height, there is structural stability good, assurance structural safety is reliable, constructure scheme is simple, be conducive to the beneficial effects such as accelerating construction progress.
3, the present invention is embedded under riverbed in water intake hypomere, intake pipe and pile foundation, and in water intake hypomere, intake pipe and pile foundation periphery backfill layer of sand and rock layer, effectively prevents that water intake and pile foundation from departing from, and makes water intake more firm on riverbed, and 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 of river direction, effectively prevents when flowing water is too urgent water intake to produce and impact, and affects the functional performance of water intake, avoids being damaged.
Accompanying drawing explanation
Fig. 1 is the layout plan of structure 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.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment 1:
Inland river intake structure referring to figs. 1 through the electric power plant circulating water system shown in Fig. 5, comprises pile foundation 1 and water intake 2, and described pile foundation 1 forms by burying many spud piles that are inserted in riverbed, inland river 3, and all the upper end of spud piles 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; Sidewall at water intake 2 is provided with water inlet 5 and delivery port 6, and 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, in the bottom of water intake 2, is provided with anchor block 41; Described installation groove 4 is located on anchor block 41; The main part of described water intake 2 is oblong-shaped, at two ends of described main part, respectively extends a triangle, forms flow-guiding structure 10; In water intake 2, be provided with maintenance access with cover 14; Described flow-guiding structure 10 flows to and arranges along river, forms the side wall of water intake 2; At water inlet, 5 places are provided with screen pack 11, and this screen pack props up 12 by many stainless steel steel and installs and form side by side; At delivery port, 5 places are embedded with steel sleeve 13, and the fixed installation of being convenient to intake pipe connects; Described many spud piles consist 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, An She interval, the position piling selected, makes the top of whole spud piles in same level, forms the pile foundation of pile foundation 1 height being comprised of many spud piles;
2) prefabricated steel concrete water intake 2 on land, at the reserved groove 4 corresponding with the spud pile upper end size and dimension of pile foundation in the bottom of water intake; Sidewall at water intake 2 is provided with water inlet 5 and delivery port 6, and 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 snappings are arranged in pile foundation, by the groove 4 of water intake 2, be directly buckled on the spud pile of pile foundation fixingly, form sealed collecting well 7;
4) at delivery port 6, be connected with intake pipe 61, form sealed rigidity inland river intake structure.
In concrete grammar is implemented, described foundation pile 1 adopts steel pipe pile, each foundation pile is cut flatly when water intake is installed, and makes each foundation pile upper end be same level; At hypomere and the intake pipe periphery Cast-in-situ Piles in Sand-filling of water intake, on sand bed, utilize stone to compress compacting, avoid running off, form riverbed; Described riverbed 3 consists of the backfill layer of sand 8 of low layer and rock layer 9 compactings on layer of sand 8.
Embodiment 2
The difference of technical characterictic 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 that each triangle extending forms at water intake 2 main part two ends.All the other are with embodiment 1.
The present invention is applied to the large-scale gas power plant in certain inland makeup Water System, the about 220m of intake offshore distance, and the thick about 40m of mud of intake position, seashore physical features is smooth.It is 600mm steel pipe pile that the pile foundation 1 of described water-fetching head adopts 4 diameters, the long 50m of stake.Water intake adopts precast concrete to make after moulding dry on the ground, adopts above-water hoisting construction.When water-fetching head 2 is prefabricated, reserved installation groove 4 is directly buckled on steel pipe pile, and water intake 2 is effectively fixedly connected with pile foundation 1, then at pile foundation 1 and water intake 2 periphery backfill layers of sand 8, and on layer of sand, utilizes rock layer 9 to compress compacting.From construction and operating condition, respond well, met designing requirement.
Claims (10)
1. the inland river intake structure of electric power plant circulating water system, comprise pile foundation (1) and water intake (2), it is characterized in that: described pile foundation (1) is by burying many spud piles formations that are inserted in riverbed, inland river (3), and all the upper end of spud piles is in same level; Described water intake (2) is integral type steel concrete frame structure, in the bottom of water intake (2), be provided with the installation groove (4) corresponding with pile foundation (1) spud pile, it is upper that water intake (2) utilizes the direct snapping of this installation groove (4) to be fixedly mounted on pile foundation (1), forms sealed collecting well (7); Sidewall at water intake (2) is provided with water inlet (5) and delivery port (6), 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.
2. the inland river intake structure of electric power plant circulating water system according to claim 1, it is characterized in that: described water-fetching head (2) is precast concrete, in the bottom of water intake (2), be provided with anchor block (41), described installation groove (4) is located on anchor block (41).
3. the inland river intake structure of electric power plant circulating water system according to claim 1 and 2, it is characterized in that: the main part of described water intake (2) is oblong-shaped, two ends in described main part respectively extend a triangle, form flow-guiding structure (10).
4. the inland river intake structure of electric power plant circulating water system according to claim 1 and 2, is characterized in that: in water intake (2), be provided with maintenance access with cover (14).
5. the inland river intake structure of electric power plant circulating water system according to claim 1 and 2, is characterized in that: described flow-guiding structure (10) flows to and arranges along river, forms the side wall of water intake (2).
6. the inland river intake structure of electric power plant circulating water system according to claim 1 and 2, is characterized in that: at water inlet (5), locate to be provided with screen pack (11), this screen pack props up (12) by many stainless steel steel and installs and form side by side; At delivery port (5), locate to be embedded with steel sleeve (13).
7. the inland river intake structure of electric power plant circulating water system according to claim 1 and 2, is characterized in that: described many spud piles consist of buried steel pipe in riverbed, forms steel management system pile foundation (1).
8. 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, An She interval, the position piling selected, makes the top of whole spud piles in same level, forms the pile foundation of pile foundation (1) height being comprised of many spud piles;
2) prefabricated steel concrete water intake (2) on land, at the reserved groove (4) corresponding with the spud pile upper end size and dimension of pile foundation in the bottom of water intake; Sidewall at water intake (2) is provided with water inlet (5) and delivery port (6), and 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, by the groove (4) of water intake (2), be directly buckled on the spud pile of pile foundation fixingly, form sealed collecting well (7);
4) at delivery port (6), be connected with intake pipe (61), form sealed rigidity inland river intake structure.
9. the construction method of the inland river intake structure of electric power plant circulating water system according to claim 8, is characterized in that: described foundation pile (1) adopts steel pipe pile, each foundation pile is cut flatly when water intake is installed, and makes each foundation pile upper end be same level.
10. the construction method of the inland river intake structure of electric power plant circulating water system according to claim 8 or claim 9, is characterized in that: at hypomere and the intake pipe periphery Cast-in-situ Piles in Sand-filling of water intake, utilize stone to compress compacting on sand bed, avoid running off, form riverbed; Described riverbed (3) consists of the backfill layer of sand (8) of low layer and rock layer (9) compacting on 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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| 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 CN104074234B (en) | 2016-02-03 |
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Cited By (4)
| 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 |
| CN108867758A (en) * | 2018-07-18 | 2018-11-23 | 中交天津港湾工程设计院有限公司 | A kind of harbour caisson water fetching device and construction method |
| 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 |
| CN111173073A (en) * | 2020-01-07 | 2020-05-19 | 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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| 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 |
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| CN111173073A (en) * | 2020-01-07 | 2020-05-19 | 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 |
| 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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| CN104074234B (en) | 2016-02-03 |
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