CN108755720A - The relatively narrow river water method of river diversion for crossing water river is worn under large-scale synthesis piping lane - Google Patents
The relatively narrow river water method of river diversion for crossing water river is worn under large-scale synthesis piping lane Download PDFInfo
- Publication number
- CN108755720A CN108755720A CN201810613381.9A CN201810613381A CN108755720A CN 108755720 A CN108755720 A CN 108755720A CN 201810613381 A CN201810613381 A CN 201810613381A CN 108755720 A CN108755720 A CN 108755720A
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- Prior art keywords
- river
- diversion pipe
- water
- diversion
- foundation pit
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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
Abstract
The invention discloses the relatively narrow river water method of river diversion for crossing water river is worn under a kind of large-scale synthesis piping lane, step is followed successively by：Cofferdam construction, channel cleanout in cofferdam, curb excavate, river pad soil, and diversion pipe supports stake and the construction of pattern foundation pit supporting structure campshed, diversion pipe installation, excavation of foundation pit.Pattern foundation pit supporting structure cost is greatly lowered under the premise of meeting construction needs in the river water method of river diversion of the present invention, and before earth excavation, the flow that cofferdam is blocked can reduce upstream water level by water conservancy diversion Tube Drain, reduce construction risk, ensures construction personnel's safety.
Description
Technical field
The invention belongs to cross the technology in river in the large size piping lane foundation pit cut and cover tunneling of underground, more particularly, to a kind of big
The relatively narrow river water method of river diversion for crossing water river is worn under pattern synthesis piping lane.
Background technology
Currently, in the underground pipe gallery work progress of large size city, it, need to be in certain construction area because piping lane construction length is longer
Domain forms piping lane network, can encounter all kinds of rough sledding, such as unfavorable geology, above and below ground barrier.In various technical barriers
In, the piping lane construction crossed in water river belongs to the larger one kind of difficulty.Because when crossing the construction of water river, need to carry out flow
Water conservancy diversion can just carry out excavation of foundation pit.Before excavation construction, according to the difference of river width, in order to cost-effective, generally take
Cofferdam adds the construction technology of water conservancy diversion.River is subjected to cofferdam first, then uses the form of water pipe, water pump or excavation section by section by river
Water is drained to downstream.For the foundation pit that river disposably excavates, needs to set up hanging drainage tube above foundation pit and draw river water
To foundation pit other side.When excavation of foundation pit width is larger, drainage tube need to carry out vertical supporting in centre, to ensure the stabilization of pipeline
Property.Normal practice is to install bracing members column after excavation of foundation pit, set up diversion pipe, and such way process is more, and for mistake
Water section upstream drainage is unfavorable.
Invention content
To solve the above problems, the present invention, which provides, wears the relatively narrow river water water conservancy diversion side for crossing water river under a kind of large-scale synthesis piping lane
Method, the invention complete diversion pipe erection before excavation of foundation pit, and installation, job platform safety is facilitated to reduce installation exercise risk, and
And the water conservancy diversion of river water is completed before deep pit digging, upstream water level pressure is reduced, security risk when excavation of foundation pit is reduced.
The specific technical solution of the present invention is as follows：
The relatively narrow river water method of river diversion for crossing water river is worn under large-scale synthesis piping lane, construction procedure is：
Step 1: cofferdam construction：Packeted soil is filled into earth dam by a lateral other side with digging machine first, while will be in earth dam
In drainage tube be installed in place, after the completion of filling, first timber is squeezed into since riverbed side with digging machine, then uses iron wire again
Or wire rod longitudinally, laterally restrain and is fixed, and entire cofferdam is made to be unified into an entirety, then gradually to korneforos heart inserting piling, until
To opposite bank, one, 2 two initial timber sets position and direction and to ensure precision, to play the role of model；
Step 2: channel cleanout in cofferdam；
Step 3: curb excavates：After cofferdam is built, curb should be set before conduction pipe access failure and drained；
Step 4: river pad is native：After the completion of channel cleanout, bankets in river and support stake top absolute altitude to diversion pipe, fill out
Build piling platform；
Step 5: diversion pipe support stake, the construction of pattern foundation pit supporting structure campshed：Because when crossing the large size piping lane construction of water river, leading
Flow tube is both needed to suitable for reading across foundation pit, and span is larger, and intermediate setting support stake is needed to be propped up, and after channel cleanout, pad soil, does operation
Spiral digging machine can charge operation piling.
Step 6: diversion pipe is installed：After the completion of diversion pipe supports pile driving construction, diversion pipe support is constructed on support stake face
Platform；
Step 7: excavation of foundation pit：After in diversion pipe, installation is complete, curb is filled, by reserved diversion pipe interface
It opens, water is crossed using diversion pipe, then carries out excavation of foundation pit.
Further, when passing through diversion pipe because of flow in the step five, disturbance is will produce, is easy to keep diversion pipe disconnected
It splits, therefore diversion pipe is reinforced using H profile steel herein, steel pipe is spot welded with H profile steel.
Compared with prior art, the method for the present invention is simple for process, and field conduct is stronger, can meet what construction needed
Under the premise of, pattern foundation pit supporting structure cost is greatly lowered, and before earth excavation, the flow that cofferdam is blocked is drawn by diversion pipe
Stream can reduce upstream water level, reduce construction risk, ensure construction personnel's safety.Dry riverbed is also easy to operation people simultaneously
Member carries out construction operation, can effectively shorten the duration, reduces cost.
Description of the drawings
Fig. 1 is foundation pit sectional view after diversion pipe installation of the present invention；
Fig. 2 is diversion pipe A-A sectional views；
In figure：1, cofferdam, 2, river bed absolute altitude, 3, water surface absolute altitude, 4, diversion pipe, 5, diversion pipe support stake, 6, pattern foundation pit supporting structure
Campshed, 7, substrate absolute altitude, 8, H profile steel.
Specific implementation mode
The relatively narrow method of river diversion for crossing water river is worn to a kind of large-scale piping lane proposed by the invention in conjunction with attached drawing and example
It is further described.
A kind of large size that the climax river sinking section piping lane construction of the areas Bo Wang underground pipe gallery project uses the present invention is comprehensive
It closes and wears the relatively narrow river water method of river diversion for crossing water river under piping lane.Climax river sinking section overall length 103.93m, channel excavation depth
6.85m, river width 20m do not have the condition of excavation section by section, therefore use disposable excavation, and cofferdam is complete by upstream, downstream river water
Portion shuts off, and three diversion pipes (4) are used above foundation pit, river water are led to downstream, specific implementation mode is as follows.
Embodiment 1
A kind of large size piping lane wears the method for river diversion in relatively narrow water river excessively：
Step 1: cofferdam 1 is constructed：Packeted soil is filled into earth dam by a lateral other side with digging machine first, while by water conservancy diversion
Pipe 4 is embedded in cofferdam 1.After the completion of filling, first timber is squeezed into since riverbed side with digging machine, then uses iron wire or line again
Material longitudinally, laterally restrain and is fixed, and entire cofferdam 1 is made to be unified into an entirety.Then gradually to korneforos heart inserting piling, until to pair
Bank, one, 2 two initial timber sets position and direction and to ensure precision, to play the role of model.
Step 2: channel cleanout in cofferdam 1.
Step 3: curb excavates：After cofferdam 1 is built, curb should be set before 4 access failure of diversion pipe and drained.
Step 4: river pad is native：After the completion of channel cleanout, bankets high to diversion pipe 5 top mark of support stake, fill out in river
Build piling platform.
Step 5: diversion pipe support stake 5 and pattern foundation pit supporting structure campshed 6 are constructed：Because when crossing the large size piping lane construction of water river,
Diversion pipe 4 is both needed to suitable for reading across foundation pit, and span is larger, needs intermediate setting diversion pipe that stake 5 is supported to be supported, channel cleanout,
After pad soil, doing operation Spiral digging machine can charge operation piling.
Step 6: diversion pipe 4 is installed：After the completion of diversion pipe support stake 5 is constructed, diversion pipe 4 is constructed on support stake face
Support platform.
When because of flow by diversion pipe 4, disturbance is will produce, is easy that water conservancy diversion is made to be broken, therefore uses H profile steel 8 to leading here
Flow tube 4 is reinforced, and diversion pipe 4 is spot welded with H profile steel 8, as shown in Figure 2.
Step 7：Excavation of foundation pit：After in diversion pipe 4, installation is complete, curb is filled, by reserved 4 interface of diversion pipe
Place opens, and crosses water using diversion pipe 4, then carries out excavation of foundation pit.
The present invention is applied crosses water section piping lane relatively narrow, base can be greatly lowered under the premise of meeting construction needs
Support cost is cheated, and before earth excavation, the flow that cofferdam is blocked will be drained by diversion pipe, can reduce upper water
Position, reduces the risk of construction safety.Dry riverbed is also easy to operating personnel and carries out construction operation, shortens the construction period, reduces cost.
The method is simple for process, and field conduct is stronger.
Claims (2)
1. wearing the relatively narrow river water method of river diversion for crossing water river under large-scale synthesis piping lane, characterized in that construction procedure is：
Step 1: cofferdam (1) constructs：Packeted soil is filled into earth dam by a lateral other side with digging machine first, while will be in earth dam
In drainage tube (4) be installed in place, after the completion of filling, first timber is squeezed into since riverbed side with digging machine, is then used again
Iron wire or wire rod longitudinally, laterally restrain and are fixed, and entire cofferdam is made to be unified into an entirety, then gradually to korneforos heart inserting piling,
Until arrive opposite bank, one, 2 two initial timber sets position and direction and to ensure precision, to play the role of model；
Step 2: cofferdam (1) interior channel cleanout；
Step 3: curb excavates：After cofferdam (1) is built, curb should be set before diversion pipe (4) access failure and drained；
Step 4: river pad is native：After the completion of channel cleanout, bankets high to diversion pipe support stake (5) top mark, fill in river
Piling platform；
Step 5: diversion pipe support stake (5), pattern foundation pit supporting structure campshed (6) construction：Because when crossing the large size piping lane construction of water river,
Diversion pipe is both needed to suitable for reading across foundation pit, and span is larger, and intermediate setting support stake is needed to be propped up, and after channel cleanout, pad soil, does and makees
Industry Spiral digging machine can charge operation piling.
Step 6: diversion pipe (4) is installed：After the completion of diversion pipe support stake (5) is constructed, diversion pipe branch is constructed on support stake face
Support platform；
Step 7: excavation of foundation pit：After installation is complete in diversion pipe (4), curb is filled, reserved diversion pipe interface is beaten
It opens, water is crossed using diversion pipe, then carries out excavation of foundation pit.
2. wearing the relatively narrow river water method of river diversion for crossing water river under large-scale synthesis piping lane according to claim 1, characterized in that
Diversion pipe support platform is that H profile steel (8) is made in the step six, is reinforced to diversion pipe (4) using H profile steel, water conservancy diversion
Pipe is spot welded with H profile steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810613381.9A CN108755720A (en) | 2018-06-14 | 2018-06-14 | The relatively narrow river water method of river diversion for crossing water river is worn under large-scale synthesis piping lane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810613381.9A CN108755720A (en) | 2018-06-14 | 2018-06-14 | The relatively narrow river water method of river diversion for crossing water river is worn under large-scale synthesis piping lane |
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| Publication Number | Publication Date |
|---|---|
| CN108755720A true CN108755720A (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810613381.9A Pending CN108755720A (en) | 2018-06-14 | 2018-06-14 | The relatively narrow river water method of river diversion for crossing water river is worn under large-scale synthesis piping lane |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305141A (en) * | 2019-11-29 | 2020-06-19 | 中国一冶集团有限公司 | Drainage method for underground comprehensive pipe gallery in dry season canal penetrating |
| CN115341550A (en) * | 2022-08-24 | 2022-11-15 | 上海市政工程设计研究总院（集团）有限公司 | River-crossing foundation pit diversion system combined with foundation pit support structure and construction method |
| CN115369806A (en) * | 2022-08-04 | 2022-11-22 | 中国一冶集团有限公司 | River channel crossing construction drainage method for comprehensive pipe gallery |
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| US20090269139A1 (en) * | 2008-04-23 | 2009-10-29 | Mcbride Todd | Fluid conversion conduit |
| CN201339195Y (en) * | 2008-12-31 | 2009-11-04 | 中铁六局集团有限公司 | Cofferdam structure |
| CN104631475A (en) * | 2015-01-20 | 2015-05-20 | 中铁隧道集团有限公司杭州公司 | Safe and fast construction method of down-traversing river shallow depth bored tunnel |
| CN204356792U (en) * | 2014-12-26 | 2015-05-27 | 长安大学 | The construction equipment of cofferdam, a kind of river water conservancy diversion |
| CN107152035A (en) * | 2017-06-06 | 2017-09-12 | 中国华冶科工集团有限公司 | The construction method of underground pipe gallery river crossing |
-
2018
- 2018-06-14 CN CN201810613381.9A patent/CN108755720A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090269139A1 (en) * | 2008-04-23 | 2009-10-29 | Mcbride Todd | Fluid conversion conduit |
| CN201339195Y (en) * | 2008-12-31 | 2009-11-04 | 中铁六局集团有限公司 | Cofferdam structure |
| CN204356792U (en) * | 2014-12-26 | 2015-05-27 | 长安大学 | The construction equipment of cofferdam, a kind of river water conservancy diversion |
| CN104631475A (en) * | 2015-01-20 | 2015-05-20 | 中铁隧道集团有限公司杭州公司 | Safe and fast construction method of down-traversing river shallow depth bored tunnel |
| CN107152035A (en) * | 2017-06-06 | 2017-09-12 | 中国华冶科工集团有限公司 | The construction method of underground pipe gallery river crossing |
Non-Patent Citations (1)
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| 郭大焕: ""水底隧道明挖深基坑施工技术"", 《岩土工程界》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305141A (en) * | 2019-11-29 | 2020-06-19 | 中国一冶集团有限公司 | Drainage method for underground comprehensive pipe gallery in dry season canal penetrating |
| CN111305141B (en) * | 2019-11-29 | 2021-11-26 | 中国一冶集团有限公司 | Drainage method for underground comprehensive pipe gallery in dry season canal penetrating |
| CN115369806A (en) * | 2022-08-04 | 2022-11-22 | 中国一冶集团有限公司 | River channel crossing construction drainage method for comprehensive pipe gallery |
| CN115341550A (en) * | 2022-08-24 | 2022-11-15 | 上海市政工程设计研究总院（集团）有限公司 | River-crossing foundation pit diversion system combined with foundation pit support structure and construction method |
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Application publication date: 20181106 |