CN108867814A - It is newly-built to cut dirty branch pipe and existing sewage network is plugged into engineering method - Google Patents
It is newly-built to cut dirty branch pipe and existing sewage network is plugged into engineering method Download PDFInfo
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- CN108867814A CN108867814A CN201810791487.8A CN201810791487A CN108867814A CN 108867814 A CN108867814 A CN 108867814A CN 201810791487 A CN201810791487 A CN 201810791487A CN 108867814 A CN108867814 A CN 108867814A
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- existing sewage
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
- E03F5/025—Manhole shafts or other inspection chambers; Snow-filling openings; accessories provided with a liner
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
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- Sewage (AREA)
Abstract
The present invention provide it is a kind of newly-built cut dirty branch pipe and existing sewage network is plugged into engineering method, include the following steps：(1) physical prospecting verification is carried out to existing sewage network, determines the structure of the existing sewage network；(2) it constructs to active well and received well, the received well uses reverse construction；(3) dirty branch pipe newly-built will be cut by the active well push pipe to the received well, then be plugged into the existing sewage network；(4) after the completion of described newly-built section dirty branch pipe is plugged into the existing sewage network, the existing sewage network is subjected to water conservancy diversion, water conservancy diversion carries out notch after the completion, it is ensured that the existing sewage network is connected to the newly-built dirt time branch pipe that cuts.Engineering method provided by the invention of plugging into, both the normal water flowing of existing sewage network had been can guarantee, the influence to ambient enviroment can be reduced again, and generally process is simple, construction efficiency is high, construction cost is low, is of great significance to newly-built section of dirty branch pipe with plugging into for existing sewage network.
Description
Technical field
It plugs into field the invention belongs to sewage pipe, more particularly to a kind of newly-built cut a dirty branch pipe and plug into existing sewage network
Engineering method.
Background technique
Most domestic Urban Underground sewage network project under construction is to cut dirty branch pipeline network construction at present, need to be with city early period
The built existing sewage network connection in city, and sewage is concentrated to sewage treatment plant, handle rear discharge or recycling up to standard.It is conventional
Connection modes are that open caisson is plugged into technique, but tradition technique of plugging into has the disadvantages that：
(1) existing pipeline can not be protected during plain sequence open caisson, is easy to damage surrounding buildings and pipeline；
(2) building platform is needed when constructing, construction speed is slow, the construction time is long, security risk is high；
(3) sewage guide project amount is huge, and construction cost is high；
(4) construction noise is big, travel fatigue is more, is affected to surrounding resident life.
Therefore, the work of plugging into that a kind of process is simple, work efficiency is high, security risk is small, small to surrounding resident life interference is needed
Method.
Summary of the invention
That the purpose of the present invention is to provide a kind of processes is simple, work efficiency is high, security risk is small it is newly-built cut dirty branch pipe with
The engineering method of plugging into of existing sewage network.
To achieve the above object, the present invention, which provides, a kind of newly-built cuts dirty branch pipe and existing sewage network is plugged into engineering method, packet
Include following steps：
(1) physical prospecting verification is carried out to existing sewage network, determines the structure of existing sewage network；
(2) it constructs to active well and received well, the received well uses reverse construction, and the active well is for pushing up
Pipe is newly-built to cut dirty branch pipe to the received well, the received well be used to receive with the existing sewage network plug into it is described newly
It builds and cuts dirty branch pipe；
(3) by it is described it is newly-built cut dirty branch pipe by the active well push pipe to the received well, then with the existing dirt
Pipe network is plugged into；
(4) after the completion of described newly-built section dirty branch pipe and the existing sewage network are plugged into, by the existing sewage pipe
Net carries out water conservancy diversion, and notch is carried out after the completion of water conservancy diversion, it is ensured that the existing sewage network is connected to described newly-built section dirty branch pipe.Tool
Body, use the cooperation of diamond rope saw and diamond water drilling to carry out notch to connection under the conditions of the interim support top of I-steel,
Compare static blasting, manually abolish, engineering one-time investment has been reduced to a great extent.
Preferably, further including between step (1) and step (2)：
(11) geological state of the existing sewage network is verified in analysis, understands the details of underground utilities；
(12) surveying setting-out, it is ensured that the position of active well and received well；
(13) foundation pit construction is carried out deep pit monitor and is gone along with sb. to guard him.
It reconnoitres geological state, raw data acquisition is carried out to existing sewage network, such as buried depth, trend, cross dimensions, material
Deng, so as to determine it is newly-built cut smoothly plugging into for dirty branch pipe and existing sewage network, improve work efficiency of plugging into.
Preferably, the foundation pit surrounding is provided with gutter in step (13).Specifically, the gutter is according to the base
Pit edge is no less than 2m.
Preferably, the trapezoidal structure of the retaining wall of the received well.The retaining wall of trapezium structure facilitates constructor and is pacifying
It when full accident, is quickly withdrawn by the step between each trapezoidal retaining wall, improves safety coefficient.
Preferably, in step (2), the received well construction method includes：
(2a) carries out Construction of High Pressure Jet Grouting Pile, forms the seepproof screen of the received well outer wall；
(2b) is protected in the seepproof screen inner excavation first segment heatable adobe sleeping platform in first segment heatable adobe sleeping platform inner wall setting first segment
Wall；
(2c) repeats step (2b), in the second section of seepproof screen inner excavation heatable adobe sleeping platform, in the second section heatable adobe sleeping platform inner wall
Second section retaining wall is set, is so repeated, until completing final section retaining wall；
After the completion of (2d) all panelling constructions, back cover is carried out, the received well is formed.
Received well uses reverse construction, and construction efficiency is high, construction cost is low.Using Construction of High Pressure Jet Grouting Pile, construction is accounted for
Ground less, with small vibration, low noise, it is smaller to surrounding environment influence.
Preferably, the construction procedure of the retaining wall includes：Reinforcing bar is installed in each heatable adobe sleeping platform inner wall, is set at reinforcement location
Template is set, the casting concrete at template carries out concrete curing after the completion of pouring, form removable is finally formed retaining wall.
Preferably, bottom sealing method described in step (2d) includes：Final section heatable adobe sleeping platform bottom be successively laid with bottoming,
Concrete bed course and reinforced concrete floor carry out back cover.
Preferably, status well is not contained in the existing sewage network, described newly-built section dirty branch pipe and the existing dirt
Plugging into for pipe network is a little located in the received well.
Preferably, step (3) specifically includes：
(3a) broken hole formation on the received well is plugged into hole, it is described plug into hole for receive and the existing sewage
Described newly-built section dirty branch pipe that pipe network is plugged into；
(3b) by it is described it is newly-built cut dirty branch pipe by the active well push pipe to the hole of plugging into, then directly and institute
Existing sewage network is stated to plug into.
Preferably, containing status well in the existing sewage network, is created described in the active well push pipe and cut dirty branch pipe
After to the received well, push pipe is further continued for the status well until plugging into the existing sewage network.
Preferably, step (3) specifically includes：
(3a ') described on the received well newly-built cuts dirty branch pipe and the existing sewage network is plugged into and broken at position
Hole forms hole of plugging into, and the hole of plugging into is connected to the received well；
(3b ') opens up reserved connecting port on the status well, and the newly-built dirt time branch pipe that cuts may pass through the hole of plugging into
Mouthful to the reserved connecting port, and plug into the existing sewage network；
(3c ') carries out closure and guide to the existing sewage network in the status well；
It is created described in (3d ') push pipe and cuts a dirty branch pipe and pass through the hole of plugging into the reserved connecting port, then and institute
Existing sewage network is stated to plug into.
Preferably, further including between step (3a ') and step (3b ')：It pours to form chute in the reception bottom, slip
Slot can be used for transport concrete, carry out closure and guide to existing pipe network so as to subsequent.
Compared with prior art, it is provided by the invention it is newly-built cut dirty branch pipe and existing sewage network is plugged into engineering method, opening
Begin to carry out physical prospecting verification before construction to job location, understand the structure of existing sewage network, with determine it is newly-built cut dirty branch pipe with
The connection modes of existing sewage network, guarantee to plug into goes on smoothly.Received well uses reverse construction, can preferably protect
Existing pipeline, reduces the construction guide time, and construction efficiency is high；Do not need that building platform, workload are small, labor intensity is low；
Process is simple, security risk is small, noise is few, influences on surrounding resident life less；Construction material is simple and easy to get, and the time is short, applies
Work is at low cost.Engineering method provided by the invention of plugging into not only can guarantee the normal water flowing of existing sewage network, but also can reduce to ring around
The influence in border, generally process are simple, construction efficiency is high, construction cost is low, cut dirty branch pipe and existing sewage network to newly-built
Plug into and be of great significance.
Detailed description of the invention
Fig. 1, which is that the present invention is newly-built, cuts dirty branch pipe and existing sewage network is plugged into the flow chart of engineering method；
Fig. 2, which is that the embodiment of the present invention 1 is newly-built, cuts dirty branch pipe and existing sewage network connecting structure schematic diagram；
Fig. 3, which is that the embodiment of the present invention 2 is newly-built, cuts dirty branch pipe and existing sewage network connecting structure schematic diagram.
Specific embodiment
For the technical solution, construction feature, the technical effect realized that the present invention will be described in detail, below in conjunction with specific implementation
Mode simultaneously cooperates attached drawing to be explained in detail.
Referring to Fig. 1, the newly-built engineering method of plugging into for cutting dirty branch pipe and existing sewage network provided by the present application, including step：
(1) physical prospecting verification is carried out to existing sewage network, determines the structure of existing sewage network；Consult previously existing sewage
The related data of pipe network, and carry out verifying on the spot and investigate, the structure of existing sewage network is determined, for example, it is determined whether containing
There is status well, to formulate subsequent operating method of specifically plugging into.Status well is draining, the blowdown for Urban Underground infrastructure
Maintenance, it is easy for installation and setting.It is generally located at pipeline intersection, turning, caliber or gradient change and straight line pipeline section
On locate at a certain distance, be easy for the auxiliary construction inspected periodically.
(2) it constructs to active well and received well, vertical transport, equipment peace is used as in active well, that is, construction by pipeline jacking method
The shaft structure that dress, water and electricity supply, personnel enter and leave, specifically, active well, to received well, connect for the newly-built dirt time branch pipe that cuts of push pipe
It receives well and is used to receive the newly-built section of dirty branch pipe plugged into existing sewage network, received well uses reverse construction.Active well is used
In the newly-built dirt time branch pipe that cuts of push pipe to received well, newly-built section of dirty branch pipe can be passed through buried pipe without excavating ground in this way
The barriers such as line are delivered to received well, can largely reduce the influence to ambient enviroment；Received well uses reverse construction,
Compared to traditional sequence open caisson engineering method, contrary sequence method can be very good to protect existing subterranean pipe line structure, and process is simple, and pacify
Overall coefficient is high.
(3) dirty branch pipe newly-built will be cut by active well push pipe to received well, then be plugged into existing sewage network；Root
The factually structure of the existing sewage network in border newly-built will first cut dirty branch pipe by active well push pipe to received well, then according to reality
Demand of plugging into, determine and plug into position, cut a dirty branch pipe so that newly-built and plug into existing sewage network.
(4) after the completion of newly-built section of dirty branch pipe and existing sewage network are plugged into, existing sewage network is subjected to water conservancy diversion, is led
Notch is carried out after the completion of stream, it is ensured that existing sewage network is connected to newly-built section of dirty branch pipe.Notch is carried out again after the completion of water conservancy diversion, really
Guarantor plugs into precision, and guarantee is plugged into quality.
In the construction process, to improve construction precision, further include between step (1) and step (2)：
(11) geological state of existing sewage network is verified in analysis, understands the details of underground utilities；Determining work
It before well and received well position, needs to analyze local geological state, for the heavy of geologic feature and different geological stratifications
The features such as product time, select suitable construction method and construction tool.The survey of underground utilities is carried out simultaneously, it is ensured that is being applied
The normal operation of underground utilities during work.
(12) surveying setting-out, it is ensured that the position of active well and received well；The work such as shaft centerline measurement are carried out, active well is set
With the construction location of received well.
(13) foundation pit construction is carried out deep pit monitor and is gone along with sb. to guard him.According to geological state and the architectural environment of surrounding, excavation pit,
And the safety for carrying out foundation pit goes along with sb. to guard him work, and gutter is arranged in foundation pit surrounding, provides basic working space for subsequent construction engineering method.
With reference to the accompanying drawing, for different existing sewage networks, newly-built section of dirty branch pipe and existing sewage is described in detail
The engineering method of plugging into of pipe network.
Embodiment 1
In the present embodiment, existing sewage network does not contain status well.
Referring to fig. 2, the engineering method of plugging into for creating the existing sewage network for cutting dirt time branch pipe and not containing status well specifically includes
Following steps：
(1) physical prospecting verification is carried out to existing sewage network, determines the structure of existing sewage network 100, especially determines existing
Whether contain status well in sewage network.
(11) geological state of existing sewage network is verified in analysis, understands the details of underground utilities.
(12) surveying setting-out, it is ensured that the position of active well 200 and received well 300.In the present embodiment, existing sewage network
Status well is not contained in 100, therefore, the setting of the position of received well 300 cuts dirty branch pipe 400 and both whether there is or not sewage networks newly-built
At 100 plug into, a little it is located in received well 300 so that plugging into.
(13) foundation pit construction is carried out deep pit monitor and is gone along with sb. to guard him.
(2) it constructs to active well 200 and received well 300, received well 300 uses reverse construction, and active well 200 is used
Dirty branch pipe 400 is cut to received well 300 in push pipe is newly-built, received well 300 for receive plug into existing sewage network 100 it is new
It builds and cuts dirty branch pipe 400.In the present embodiment, it is provided with reserved opening 201 on active well 200, cuts dirty branch for push pipe is newly-built
Pipe 400 is used.The trapezoidal structure of the retaining wall of received well 300.The detailed process of reverse construction received well 300 includes：(2a) is carried out
Construction of High Pressure Jet Grouting Pile forms the seepproof screen 301 of 300 outer wall of received well；(2b) is in 301 inner excavation first segment soil of seepproof screen
Hole excavates heatable adobe sleeping platform and uses mechanical excavation, machine dig less than place hand excavation can be used, manual cleaning soil after the completion of excavation
First segment retaining wall 302 then is arranged in first segment heatable adobe sleeping platform inner wall, wherein the construction procedure of retaining wall includes in hole：In each heatable adobe sleeping platform inner wall
Reinforcing bar is installed, template is set at reinforcement location, the casting concrete at template carries out concrete curing after the completion of pouring, supports
Shield need to be completed to carry out in 12h pouring, and curing time is no less than 28 round the clock, and form removable is finally formed retaining wall, and template is torn open
Except rear concrete surface should add covering, prevent solar exposure and cold wave from attacking；(2c) repeats step (2b), in seepproof screen 301
Portion continues to excavate the second section heatable adobe sleeping platform, and the second section retaining wall 303 is arranged in the second section heatable adobe sleeping platform inner wall, so repeats, until completing last
One section retaining wall；After the completion of (2d) all panelling constructions, back cover is carried out, forms received well；When the form removable of final section retaining wall
After can carry out back cover, when back cover, be successively laid with bottoming, concrete bed course and reinforced concrete floor in final section heatable adobe sleeping platform bottom
Complete back cover, it should be noted that before back cover, final section heatable adobe sleeping platform substrate need to be dug to designed elevation, exclude well internal water accumulation,
To backbreaking, part should backfill sandstone, to meet construction requirement.
(3) newly-built will cut dirty branch pipe 400 by 200 push pipe of active well to received well 300, then with existing sewage network
100 plug into.Concrete operation step includes：(3a) broken hole on received well 300 forms hole 304 of plugging into, and broken hole is used and taken
Core drilling machine or pneumatic pick abolish hole by size of pipe and tubing, and hole 304 of plugging into is created for receiving with what existing sewage network 100 was plugged into
Cut dirty branch pipe 400；(3b) cuts dirty branch pipe 400 by 200 push pipe of active well to hole 304 of plugging into, then directly for newly-built
It plugs into existing sewage network 100.
(4) it is newly-built cut a dirty branch pipe 400 and plug into existing sewage network 100 after the completion of, by existing sewage network 100 into
Row water conservancy diversion, water conservancy diversion carry out notch after the completion, it is ensured that existing sewage network 100 is connected to the newly-built dirt time branch pipe 400 that cuts.
Embodiment 2
Referring to Fig. 3, in the present embodiment, existing sewage network 100 ' contains status well 500, the present embodiment and embodiment phase
Than in addition to position is arranged in received well 300 ' and step (3) concrete operations are different, remaining is all the same.
In the present embodiment, since existing sewage network 100 ' contains status well 500, the setting of received well 300 ' exists
Near status well 500, which, which can be reduced, destroys 500 structure of status well, greatly shorten existing pipe network 100 ' block or
The guide time, construction cost is effectively reduced.Active well 200 ' by after newly-built 400 ' push pipe to received well 300 ' of sewage network, followed by
Continuous push pipe is to status well 500, until can plug into existing sewage network 100 '.
In the present embodiment, step (3) newly-built will cut dirty branch pipe 400 ' by 200 ' push pipe of active well to received well 300 ',
Then plug into existing sewage network 100 '.Concrete operation step includes：The newly-built section of dirt of (3a ') on received well 300 '
The broken hole formation at position of plugging into of secondary branch pipe 400 ' and existing sewage network 100 ' is plugged into hole 304 ', and hole 304 ' of plugging into is set as
Two, and two holes 304 ' of plugging into are connected to received well 300 ', pass through received well 200 ' for the newly-built dirt time branch pipe 400 ' that cuts；
(3b ') opens up reserved connecting port 501 on status well 500, newly-built to cut a dirty branch pipe 400 ' and may pass through hole 304 ' of plugging into pre-
Connecting port 501 is stayed, and is plugged into existing sewage network 100 '；(3c ') is to the existing sewage network 100 ' in status well 500
Carry out closure and guide；(3d ') push pipe creates a section dirty branch pipe 100 ' and extremely reserves connecting port 501 across hole 304 ' of plugging into, with
It plugs into afterwards with existing sewage network 100 '.It should be noted that before carrying out step (3b '), it is suitable to guarantee to plug into
Benefit carries out, and after it will create section dirty 400 ' push pipe to received well 300 ' of branch pipe, is being received according to push pipe pipeline absolute altitude and the gradient
300 ' bottom of well pours to form chute 305, and chute 305 can be used for transport concrete, blocks so as to subsequent to existing pipe network
And guide.
The engineering method in conclusion newly-built section of dirty branch pipe provided by the invention and existing sewage network are plugged into, is starting to construct
Before, physical prospecting verification is carried out to job location, understands the structure of existing sewage network, to determine newly-built section of dirty branch pipe and existing dirt
The connection modes of pipe network, guarantee to plug into goes on smoothly.Received well uses reverse construction, can preferably protect existing pipe
Road, reduces the construction guide time, and construction efficiency is high；Do not need that building platform, workload are small, labor intensity is low；Process letter
List, security risk is small, noise is few, influences on surrounding resident life less；Construction material is simple and easy to get, and the time is short, construction cost
It is low.Engineering method provided by the invention of plugging into not only can guarantee the normal water flowing of existing sewage network, but also can reduce the shadow to ambient enviroment
It rings, generally process is simple, construction efficiency is high, construction cost is low, plugs into newly-built section of dirty branch pipe with existing sewage network
It is of great significance.
The above disclosure is only a preferred example of the present invention, and the scope of the invention cannot be limited thereby,
Therefore equivalent changes made in accordance with the claims of the present invention belong to the range that the present invention is covered.
Claims (12)
- The engineering method 1. newly-built section of dirty branch pipe of one kind and existing sewage network are plugged into, which is characterized in that include the following steps：(1) physical prospecting verification is carried out to existing sewage network, determines the structure of the existing sewage network；(2) it constructs to active well and received well, the received well uses reverse construction, and the active well is new for push pipe It builds and cuts dirt time branch pipe to the received well, the received well is used to receive described newly-built section to plug into the existing sewage network Dirty branch pipe；(3) by it is described it is newly-built cut dirty branch pipe by the active well push pipe to the received well, then with the existing sewage pipe Net is plugged into；(4) it is described it is newly-built cut a dirty branch pipe and after the completion of the existing sewage network is plugged into, by the existing sewage network into Row water conservancy diversion, water conservancy diversion carry out notch after the completion, it is ensured that the existing sewage network is connected to the newly-built dirt time branch pipe that cuts.
- 2. engineering method of plugging into as described in claim 1, wherein further include between step (1) and step (2)：(11) geological state of the existing sewage network is verified in analysis, understands the details of underground utilities；(12) surveying setting-out, it is ensured that the position of active well and received well；(13) foundation pit construction is carried out deep pit monitor and is gone along with sb. to guard him.
- 3. engineering method of plugging into as claimed in claim 2, wherein in step (13), the foundation pit surrounding is provided with gutter.
- 4. engineering method of plugging into as described in claim 1, wherein the trapezoidal structure of the retaining wall of the received well.
- 5. engineering method of plugging into as described in claim 1, wherein in step (2), the received well construction method includes：(2a) carries out Construction of High Pressure Jet Grouting Pile, forms the seepproof screen of the received well outer wall；First segment retaining wall is arranged in the seepproof screen inner excavation first segment heatable adobe sleeping platform, in the first segment heatable adobe sleeping platform inner wall in (2b)；(2c) repeats step (2b), in the second section of seepproof screen inner excavation heatable adobe sleeping platform, is arranged in the second section heatable adobe sleeping platform inner wall Second section retaining wall so repeats, until completing final section retaining wall；After the completion of (2d) all panelling constructions, back cover is carried out, the received well is formed.
- 6. plugging into engineering method as claimed in claim 5, wherein the construction procedure of the retaining wall includes：In each heatable adobe sleeping platform inner wall Reinforcing bar is installed, template is set at reinforcement location, the casting concrete at template carries out concrete curing after the completion of pouring, most Form removable is formed into retaining wall afterwards.
- 7. plugging into engineering method as claimed in claim 6, wherein bottom sealing method described in step (2d) includes：In final section soil Hole bottom is successively laid with bottoming, concrete bed course and reinforced concrete floor and carries out back cover.
- 8. engineering method of plugging into as described in claim 1, wherein status well is not contained in the existing sewage network, it is described newly-built It cuts dirty branch pipe and plugging into for the existing sewage network is a little located in the received well.
- 9. engineering method of plugging into as claimed in claim 8, wherein step (3) specifically includes：(3a) broken hole formation on the received well is plugged into hole, it is described plug into hole for receive and the existing sewage network The described newly-built section dirty branch pipe plugged into；(3b) by it is described it is newly-built cut dirty branch pipe by the active well push pipe to the hole of plugging into, then directly with it is described both There is sewage network to plug into.
- 10. engineering method of plugging into as described in claim 1, wherein contain status well, the active well in the existing sewage network It is created described in push pipe after cutting dirty branch pipe to the received well, is further continued for push pipe to the status well until with the existing sewage Pipe network is plugged into.
- 11. engineering method of plugging into as claimed in claim 10, wherein step (3) specifically includes：(3a ') described on the received well newly-built cuts dirty branch pipe and the existing sewage network is plugged into broken hole shape at position At hole of plugging into, the hole of plugging into is connected to the received well；(3b ') opens up reserved connecting port on the status well, it is described it is newly-built cut a dirty branch pipe and may pass through described plug into hole extremely The reserved connecting port, and plug into the existing sewage network；(3c ') carries out closure and guide to the existing sewage network in the status well；Created described in (3d ') push pipe and cut a dirty branch pipe and pass through the hole of plugging into the reserved connecting port, then with it is described both There is sewage network to plug into.
- 12. engineering method of plugging into as claimed in claim 11, wherein further include between step (3a ') and step (3b ')：Described Bottom is received to pour to form chute.
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| CN201810791487.8A CN108867814A (en) | 2018-07-18 | 2018-07-18 | It is newly-built to cut dirty branch pipe and existing sewage network is plugged into engineering method |
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| CN201810791487.8A CN108867814A (en) | 2018-07-18 | 2018-07-18 | It is newly-built to cut dirty branch pipe and existing sewage network is plugged into engineering method |
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| CN109736416A (en) * | 2019-01-24 | 2019-05-10 | 安徽省公路桥梁工程有限公司 | The old and new's sewage conduct deep well point connection structure and construction method |
| CN110080369A (en) * | 2019-05-20 | 2019-08-02 | 中国二十冶集团有限公司 | A kind of intersection blowdown pipeline construction method for not interrupting blowdown |
| CN110306581A (en) * | 2019-07-31 | 2019-10-08 | 广东省源天工程有限公司 | One kind new old pipeline connection well and its construction method in water rich strata |
| CN111236387A (en) * | 2020-01-17 | 2020-06-05 | 中铁十二局集团有限公司 | Construction method for connecting newly-built sewage pipe with existing sewage pipe |
| CN111853418A (en) * | 2020-07-02 | 2020-10-30 | 深圳市市政工程总公司 | Construction method for pipeline repair |
| CN112095748A (en) * | 2020-09-03 | 2020-12-18 | 北京建工土木工程有限公司 | Rapid construction method for non-stop butt joint of newly-built sewage pipeline and operation pipeline |
| CN112095747A (en) * | 2020-09-03 | 2020-12-18 | 北京建工土木工程有限公司 | Safe construction method for non-stop butt joint of newly-built sewage pipeline and operation pipeline |
| CN112282029A (en) * | 2020-11-05 | 2021-01-29 | 上海交通建设总承包有限公司 | Connection construction method for urban high-water-level large-diameter reinforced concrete sewage pipeline |
| CN112982425A (en) * | 2021-02-01 | 2021-06-18 | 中国电建集团市政规划设计研究院有限公司 | Method for reinforcing open caisson and existing channel |
| CN113309900A (en) * | 2021-06-24 | 2021-08-27 | 江苏广吴建设园林有限公司 | Non-water-cut-off construction method for connecting branch pipe of concrete water supply pipeline |
| CN116290282A (en) * | 2023-04-23 | 2023-06-23 | 中铁一局集团市政环保工程有限公司 | Construction method for connecting new and old pipelines |
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| CN109736416A (en) * | 2019-01-24 | 2019-05-10 | 安徽省公路桥梁工程有限公司 | The old and new's sewage conduct deep well point connection structure and construction method |
| CN110080369A (en) * | 2019-05-20 | 2019-08-02 | 中国二十冶集团有限公司 | A kind of intersection blowdown pipeline construction method for not interrupting blowdown |
| CN110306581A (en) * | 2019-07-31 | 2019-10-08 | 广东省源天工程有限公司 | One kind new old pipeline connection well and its construction method in water rich strata |
| CN111236387A (en) * | 2020-01-17 | 2020-06-05 | 中铁十二局集团有限公司 | Construction method for connecting newly-built sewage pipe with existing sewage pipe |
| CN111853418A (en) * | 2020-07-02 | 2020-10-30 | 深圳市市政工程总公司 | Construction method for pipeline repair |
| CN111853418B (en) * | 2020-07-02 | 2022-06-03 | 深圳市市政工程总公司 | Construction method for pipeline repair |
| CN112095747A (en) * | 2020-09-03 | 2020-12-18 | 北京建工土木工程有限公司 | Safe construction method for non-stop butt joint of newly-built sewage pipeline and operation pipeline |
| CN112095748A (en) * | 2020-09-03 | 2020-12-18 | 北京建工土木工程有限公司 | Rapid construction method for non-stop butt joint of newly-built sewage pipeline and operation pipeline |
| CN112282029A (en) * | 2020-11-05 | 2021-01-29 | 上海交通建设总承包有限公司 | Connection construction method for urban high-water-level large-diameter reinforced concrete sewage pipeline |
| CN112982425A (en) * | 2021-02-01 | 2021-06-18 | 中国电建集团市政规划设计研究院有限公司 | Method for reinforcing open caisson and existing channel |
| CN113309900A (en) * | 2021-06-24 | 2021-08-27 | 江苏广吴建设园林有限公司 | Non-water-cut-off construction method for connecting branch pipe of concrete water supply pipeline |
| CN113309900B (en) * | 2021-06-24 | 2022-04-08 | 江苏广吴建设园林有限公司 | Non-water-cut-off construction method for connecting branch pipe of concrete water supply pipeline |
| CN116290282A (en) * | 2023-04-23 | 2023-06-23 | 中铁一局集团市政环保工程有限公司 | Construction method for connecting new and old pipelines |
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