CN106703056A - Method for connecting pipelines in underwater dry environment through utilizing steel-concrete connection well - Google Patents
Method for connecting pipelines in underwater dry environment through utilizing steel-concrete connection well Download PDFInfo
- Publication number
- CN106703056A CN106703056A CN201611191691.3A CN201611191691A CN106703056A CN 106703056 A CN106703056 A CN 106703056A CN 201611191691 A CN201611191691 A CN 201611191691A CN 106703056 A CN106703056 A CN 106703056A
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- double
- layer plate
- cuboid
- pit shaft
- plate
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
- E02D2250/0069—Welding
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a method for connecting pipelines in an underwater dry environment through utilizing a steel-concrete connection well. The method comprises the steps of S1, manufacturing a cuboid double-layer steel plate well shaft, and digging a foundation pit used for placing the cuboid double-layer steel plate well shaft underwater in the design position of the connection well; S2, conveying the manufactured cuboid double-layer steel plate well shaft to the foundation pit of the design connection well through flotation, and enabling the cuboid double-layer steel plate well shaft to sink in position; S3, backfilling the outer side of the cuboid double-layer steel plate well shaft in the foundation pit of the connection well to the design bottom elevation of immersed tubes; S4, cutting reserved vertical slots underwater, taking out the cut reserved vertical slots, enabling the immersed tubes to sink, and placing the vertical slots in home positions in the cuboid double-layer steel plate well shaft; and S5, pumping water in the connection well, and carrying out connection, pressing and backfilling on the immersed tubes. The method has the advantages that through the utilization of the method, the problem that the pipelines cannot be connected in the dry environment underwater is solved, and the problems that the supporting difficulty is high and the water sealing effect is poor due to the facts that the occupied water area of underwater immersed tube connection is large, time is long, and the surrounding environment and geology affect connection are solved.
Description
Technical field
It is specifically a kind of to be done under water using steel-concrete connection well the present invention relates to municipal works technical field
The engineering method of pipeline connection is carried out in dry environment.
Background technology
According to country《Water prevention and cure of pollution action plan》Requirement, various regions are increasing water environment treatment, regional water supply etc.
The building-up work of aspect, part engineering is related to immersed tube pipe's crossing of river, river, lake, but is usually present that the water surface is broad, and difficulty of construction is big
Problem, and the safety of dykes and dams will also protect, and some pipelines need to be welded to connect in the following dry environment of the water surface.Therefore
A kind of new engineering method is needed to be constructed.
At present, buried cross river pipeline typically excavates the modes such as pipe laying using push pipe, immersed tube or cofferdam.It is larger to the depth of water, have
River, river, lake that navigation is required etc., should not excavate pipe laying using cofferdam.By surrounding enviroment condition, the requirement of dykes and dams, geological conditions
Limitation, pressure pipeline need to be welded to connect below the water surface；At present, the method for being connected in dry environment under water is mainly adopted
With method excavation constructions such as cofferdam, steel sheet pile supportings, greatly, the time is long for the method occupancy water surface area, has to environment and flood control
Influence.
The content of the invention
In order to solve above-mentioned technological deficiency, present invention design is a kind of to connect well dry environment under water using steel-concrete
In carry out the engineering method of pipeline connection, to solve to take, water area is big, the time is long, the problems such as influence environment is with flood control, while also gram
Taken because the influence of surrounding enviroment, geological conditions etc. and caused by supporting difficulty it is big, the problem of water-stagnating effect difference.
One of the object of the invention is to provide and a kind of connect well using steel-concrete and carry out pipeline in dry environment under water
The engineering method of connection, comprises the following steps：
S1, making cuboid double-layer plate pit shaft；Simultaneously in the design attitude of connection well, it is double that underwater excavation places cuboid
The connection well foundation ditch a of layer steel plate pit shaft；
S2, cuboid double-layer plate pit shaft transportation by driving to the design that will be made connected and sink at well foundation ditch a, in place；Again in length
Concrete perfusion b carries out back cover in cube double-layer plate pit shaft, and is filled in the second accommodating cavity of cuboid double-layer plate pit shaft
Note concrete b, to form steel-concrete connection well；
S3, will be backfilled at immersed tube c designs bottom absolute altitude d in cuboid double-layer plate pit shaft outside in connection well foundation ditch a, and look for
It is flat, to meet Immersed tunnel requirement；
S4, reserved vertical slot is cut and taken out under water, carried out the sinking of immersed tube c, the vertical slot that then will be taken out
Frid bottom be cut into immersed tube c size identical semicircle e, then the vertical slot after cutting is positioned over cuboid double-layer plate pit shaft
Interior original position so that immersed tube c is sticked in vertical slot bottom semicircular e, finally the concrete perfusion b in vertical slot；
S5, the water drained in connection well, then carry out being welded to connect of immersed tube c, pressure pipe and backfill.
The two of the object of the invention are to provide a kind of cuboid double-layer plate pit shaft, including：Two piece of first double-layer plate, two pieces
Second double-layer plate, first double-layer plate is vertically arranged with second double-layer plate, per adjacent two pieces described first pair
The second double-layer plate described in one is welded between layer steel plate so that two pieces of first double-layer plates, two pieces of second bilayers
Steel plate collectively forms a cuboid double-layer plate pit shaft with the first accommodating cavity.
Wherein, the vertical slot being made up of steel plate is provided with second double-layer plate, the sinking for realizing immersed tube.
One kind connects well and carries out the engineering method of pipeline connection in dry environment under water using steel-concrete, and its advantage is：
Solve the problems, such as that the following pipeline of the water surface cannot be attached in dry environment using steel-concrete connection well, reduce under water
Immersed tube connection takes that water area is big, the time is long, and because the influence of surrounding enviroment, geology etc. and caused by supporting difficulty is big, sealing
The problem of effect difference；
Furthermore, the structure design of vertical slot in the cuboid double-layer plate pit shaft used in the above method so that this method
Environmental protection, flood control, it is feasible, effective.
Brief description of the drawings
Fig. 1 is steel of the invention-concrete connection well floor plan；
Fig. 2 is steel of the invention-concrete connection well profile figure；
Fig. 3 is the profile after steel of the invention-concrete connection well transportation by driving to design attitude；
Fig. 4 is the profile after steel of the invention-concrete connection well back cover, the backfill of well week and vertical slot cutting；
After Fig. 5 is steel of the invention-concrete connection well immersed tube sinking, vertical slot frid and steel plate pit shaft ectonexine steel plate
Profile after welding；
Fig. 6 is to be drawn water in steel of the invention-concrete connection well well and be welded to connect two sections of immersed tube, carries out feature
After pass the test, backfill cobble or rubble in well, the outer backfill of well, and the profile after the cutting of well top will be connected；
Wherein：
1st, the first double-layer plate, 11, outside plate, 12, inner side steel plate, 13, support angle steel, the 14, second accommodating cavity, 15,
Second support column,
2nd, the second double-layer plate, the 3, first accommodating cavity, the 4, first support column, 5, vertical slot, 51, steel plate,
A, connection well foundation ditch, b, concrete, c, immersed tube, d, bottom absolute altitude, e, semicircle.
Specific embodiment
One kind is using the engineering method that pipeline connection is carried out in steel-concrete connection well under water dry environment, including following step
Suddenly：
S1, making cuboid double-layer plate pit shaft；Simultaneously in the design attitude of connection well, it is double that underwater excavation places cuboid
The connection well foundation ditch a of layer steel plate pit shaft；
Preferably, in step S1, the design of cuboid double-layer plate pit shaft is risen higher than the water at design connection well foundation ditch a
Position；
Preferably, in step S1, the vertical slot 5 of immersed tube c sinkings, and vertical slot 5 are reserved in the cuboid upper strata steel plate pit shaft
Bottom is semicircle；
Preferably, in step S1, the bottom of the vertical slot 5 and side are constituted with steel plate so that the vertical slot 5 is double with cuboid
Other parts isolation in layer steel plate pit shaft.
Preferably, in step S1, by the long-armed digging machine of boat-carrying or dredger excavation pit.
S2, cuboid double-layer plate pit shaft transportation by driving to the design that will be made connected and sink at well foundation ditch a, in place；Again in length
Concrete perfusion b carries out back cover in cube double-layer plate pit shaft, and in the second accommodating cavity 14 of cuboid double-layer plate pit shaft
Concrete perfusion b, to form steel-concrete connection well；
Preferably, in step S2, the interior not concrete perfusion of reserved vertical slot 5.
S3, will be backfilled at immersed tube c designs bottom absolute altitude d in cuboid double-layer plate pit shaft outside in connection well foundation ditch a, and look for
It is flat, to meet Immersed tunnel requirement；
S4, reserved vertical slot 5 is cut and taken out under water, carried out the sinking of immersed tube c, the vertical slot that then will be taken out
5 frid bottoms be cut into immersed tube c size identical semicircle e, then the vertical slot 5 after cutting is positioned over cuboid double-layer plate well
Original position in cylinder so that immersed tube c is sticked in the bottom semicircular e of vertical slot 5, finally the concrete perfusion b in vertical slot 5；
S5, the water drained in connection well, then carry out being welded to connect of immersed tube c, pressure pipe and backfill；
Preferably, in step S5, block immersed tube with doughnut-shaped steel plate and ring-shaped rubber pad and be connected connector institute shape on the outside of well
Into space after, then drawn water；
Preferably, in step S5, the immersed tube c to connecting carries out functional trial, it is qualified after will connection well foundation ditch a it is inside and outside
Backfill, and steel-concrete connection well on riverbed top and is met and partly carry out imderwater cutting, take below the riverbed of navigation channel requirement
Go out, meet navigation and require, recover river bed original appearance.
According to Fig. 1, Fig. 2：Cuboid double-layer plate pit shaft, including：Two piece of first double-layer plate 1, two pieces second pair
Layer steel plate 2, first double-layer plate 1 is vertically arranged with second double-layer plate 2, per adjacent two blocks first clad steels
The second double-layer plate 2 described in one is welded between plate 1 so that two pieces of first double-layer plates, 1, two blocks of second clad steels
Plate 2 collectively forms a cuboid double-layer plate pit shaft with the first accommodating cavity 3.
Preferably, the first support column of many of horizontally set 4 in the accommodating cavity 3 (specific radical as needed depending on)；
Preferably, first double-layer plate 1 includes outside plate 11, inner side steel plate 12, at least one support angle steel 13,
The outside plate 11 is connected by the support angle steel 13 with the inner side steel plate 12 so that the outside plate 11, inner side
Steel plate 12 constitutes second accommodating cavity 14 of band, for the perfusion of concrete.
Further, first double-layer plate 1 also includes at least one second support column 15, for strengthening the outside
Steel plate 11 is connected with the inner side steel plate 12.
Further, second double-layer plate 2 is identical with the structure of the first double-layer plate 1；
Preferably, it is provided with the vertical slot being made up of steel plate 51 in first double-layer plate 1 or second double-layer plate 2
5, the sinking for realizing immersed tube；Further, the bottom of the vertical slot 5 is semicircle, for the installation of immersed tube.
Specific embodiment is described further to invention below；
S1、
S11, the beach making cuboid double-layer plate pit shaft near immersed tube pipe's crossing of river, river, Hu Chu, concretely comprise the following steps：
First double-layer plate 1 is welded to connect with the second double-layer plate 2, is allowed to enclose as a cuboid with the first accommodating cavity 3 is double-deck
Steel plate pit shaft；Meanwhile, the first support column of many of horizontally set 4 (specific radical as needed depending on) in the first accommodating cavity 3, and
Along the vertically arranged vertical slot 5 being made up of steel plate of cuboid double-layer plate pit shaft, and the bottom of vertical slot 5 is set to semicircle；
S12, excavated by the long-armed digging machine of boat-carrying or dredger underwater in riverbed bottom and place cuboid double-layer plate pit shaft
Connection well foundation ditch a；
S13, step S11 design cuboid double-layer plate pit shaft are risen higher than the water at step S12 connections well foundation ditch a
Position.
Sink at S2, the cuboid double-layer plate pit shaft transportation by driving that will be made to the foundation ditch a for designing connection well, (such as Fig. 3 in place
It is shown)；Concrete perfusion b carries out back cover in cuboid double-layer plate pit shaft again, and to the of cuboid double-layer plate pit shaft
Concrete perfusion b in two accommodating cavities 14, to form steel-concrete connection well；And in step S2, do not irrigated in reserved vertical slot 5
Concrete；
S3, cuboid double-layer plate pit shaft outside is backfilled to immersed tube c design bottom absolute altitudes d places (as shown in Figure 4), and use
Rubble is backfilled, and levelling, to meet Immersed tunnel requirement；
S4, reserved vertical slot 5 is cut and taken out (as shown in Figure 5) under water, carried out the sinking of immersed tube c, then
By the frid bottom of vertical slot 5 of taking-up be cut into immersed tube c size identical semicircle e, then the vertical slot 5 after cutting is positioned over steel plate
Original position in pit shaft, and outside plate with the second double-layer plate, inner side steel plate be respectively welded and be connected that (now vertical slot is arranged at institute
State the second double-layer plate) so that immersed tube c is sticked in the bottom semicircular e of the vertical slot 5, finally the concrete perfusion b in vertical slot 5；
(as shown in Figure 5)
S5, immersed tube is blocked with doughnut-shaped steel plate and ring-shaped rubber pad and the space that connector on the outside of well is formed is connected, drained
Water in connection well, then carry out being welded to connect (such as Fig. 6) for two sections of immersed tube c；Immersed tube c to connecting carries out functional trial, closes
The inside and outside backfills of a of well foundation ditch will be connected after lattice, and by steel-concrete connection well is on riverbed top and meets the riverbed that navigation channel requires
Following part carries out imderwater cutting, takes out, and meets navigation and requires, recovers river bed original appearance.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of using the engineering method that pipeline connection is carried out in steel-concrete connection well under water dry environment, it is characterised in that：
Comprise the following steps
S1, making cuboid double-layer plate pit shaft；Simultaneously in the design attitude of connection well, underwater excavation places cuboid clad steel
The connection well foundation ditch a of plate pit shaft；
S2, cuboid double-layer plate pit shaft transportation by driving to the design that will be made connected and sink at well foundation ditch a, in place；Again in cuboid
Concrete perfusion b carries out back cover in double-layer plate pit shaft, and to filling in second accommodating cavity (14) of cuboid double-layer plate pit shaft
Note concrete b, to form steel-concrete connection well；
S3, will be backfilled at immersed tube c designs bottom absolute altitude d in cuboid double-layer plate pit shaft outside in connection well foundation ditch a, and it is levelling,
To meet Immersed tunnel requirement；
S4, reserved vertical slot (5) is cut and taken out under water, carried out the sinking of immersed tube c, the vertical slot that then will be taken out
(5) frid bottom be cut into immersed tube c size identical semicircle e, then the vertical slot (5) after cutting is positioned over cuboid clad steel
Original position in plate pit shaft so that immersed tube c is sticked in vertical slot (5) bottom semicircular e, finally in the interior concrete perfusion b of vertical slot (5)；
S5, the water drained in connection well, then carry out being welded to connect of immersed tube c, pressure pipe and backfill.
2. engineering method according to claim 1, it is characterised in that：In step S1, the design of cuboid double-layer plate pit shaft is risen
Higher than the water level at design connection well foundation ditch a.
3. engineering method according to claim 1, it is characterised in that：In step S1, reserved in the cuboid upper strata steel plate pit shaft
The vertical slot (5) of immersed tube c sinkings, and vertical slot (5) bottom is semicircle.
4. engineering method according to claim 1, it is characterised in that：In step S2, the interior not concrete perfusion of reserved vertical slot (5).
5. engineering method according to claim 1, it is characterised in that：In step S5, it is heavy to be blocked with doughnut-shaped steel plate and ring-shaped rubber pad
Pipe be connected the space that connector on the outside of well is formed after, then drawn water.
6. engineering method according to claim 1, it is characterised in that：In step S5, the immersed tube c to connecting carries out functional trial,
The inside and outside backfills of a of well foundation ditch will be connected after qualified, and by steel-concrete connection well is on riverbed top and meets the river that navigation channel requires
Bed is following partly to carry out imderwater cutting, takes out, and meets navigation and requires, recovers river bed original appearance.
7. the cuboid double-layer plate pit shaft in any engineering method of claim 1 to 6, it is characterised in that：Including two pieces
First double-layer plate (1), two piece of second double-layer plate (2), first double-layer plate (1) and second double-layer plate (2)
It is vertically arranged, is welded with the second double-layer plate (2) described between every adjacent two pieces first double-layer plates (1) so that two
The first double-layer plate (1), two pieces of second double-layer plates (2) collectively form one with the rectangular of the first accommodating cavity (3) described in block
Body double-layer plate pit shaft；
Wherein：The vertical slot being made up of steel plate 51 is provided with first double-layer plate (1) or second double-layer plate (2)
(5), for realizing the sinking of immersed tube.
8. cuboid double-layer plate pit shaft according to claim 7, it is characterised in that：Vertical slot (5) bottom is semicircle,
For the installation of immersed tube.
9. cuboid double-layer plate pit shaft according to claim 7, it is characterised in that：First double-layer plate (1) includes
Outside plate (11), inner side steel plate (12), at least one support angle steel (13), the outside plate (11) is by the strut angle
Steel (13) is connected with the inner side steel plate (12) so that the outside plate (11), inner side steel plate (12) constitute a band second and hold
Chamber (14) is put, for the perfusion of concrete.
10. cuboid double-layer plate pit shaft according to claim 7, it is characterised in that：Second double-layer plate (2) and institute
State the first double-layer plate (1) structure, pattern identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191691.3A CN106703056B (en) | 2016-12-21 | 2016-12-21 | It is a kind of to utilize the engineering method that pipeline connection is carried out in steel-concrete connection well under water dry environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191691.3A CN106703056B (en) | 2016-12-21 | 2016-12-21 | It is a kind of to utilize the engineering method that pipeline connection is carried out in steel-concrete connection well under water dry environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106703056A true CN106703056A (en) | 2017-05-24 |
| CN106703056B CN106703056B (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611191691.3A Active CN106703056B (en) | 2016-12-21 | 2016-12-21 | It is a kind of to utilize the engineering method that pipeline connection is carried out in steel-concrete connection well under water dry environment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1018229A (en) * | 1996-06-28 | 1998-01-20 | Fujita Corp | Cofferdam construction method of existing underwater structure |
| CN102604000A (en) * | 2012-03-26 | 2012-07-25 | 华东理工大学华昌聚合物有限公司 | Synthetic method and application of epoxy vinyl ester resin with high bromine content |
| CN202359566U (en) * | 2011-12-13 | 2012-08-01 | 中交第二公路工程局有限公司 | Cofferdam for deep-water soft soil foundation construction of bridge |
| CN103741725A (en) * | 2014-01-17 | 2014-04-23 | 天津市市政工程设计研究院 | Immersed tunnel final joint and shoreside dry-work construction method thereof |
-
2016
- 2016-12-21 CN CN201611191691.3A patent/CN106703056B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1018229A (en) * | 1996-06-28 | 1998-01-20 | Fujita Corp | Cofferdam construction method of existing underwater structure |
| CN202359566U (en) * | 2011-12-13 | 2012-08-01 | 中交第二公路工程局有限公司 | Cofferdam for deep-water soft soil foundation construction of bridge |
| CN102604000A (en) * | 2012-03-26 | 2012-07-25 | 华东理工大学华昌聚合物有限公司 | Synthetic method and application of epoxy vinyl ester resin with high bromine content |
| CN103741725A (en) * | 2014-01-17 | 2014-04-23 | 天津市市政工程设计研究院 | Immersed tunnel final joint and shoreside dry-work construction method thereof |
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| CN106703056B (en) | 2019-04-19 |
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