CN205348226U - Immersed tube tunnel rubble foundation bed desilting system - Google Patents
Immersed tube tunnel rubble foundation bed desilting system Download PDFInfo
- Publication number
- CN205348226U CN205348226U CN201620087319.7U CN201620087319U CN205348226U CN 205348226 U CN205348226 U CN 205348226U CN 201620087319 U CN201620087319 U CN 201620087319U CN 205348226 U CN205348226 U CN 205348226U
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- China
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- desilting
- metalling
- foundation bed
- immersed tube
- bedding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
Abstract
The utility model provides an immersed tube tunnel rubble foundation bed desilting system, includes basic groove, the foundation bed has been laid to the base inslot, the foundation bed is including the piece stone layer and the metalling that set up from bottom to top, be provided with the desilting pipe in the metalling, the trompil of desilting pipe pipe wall, the desilting union coupling has the slush pump. When immersed tube tunnel rubble foundation bed desilting system lays at the foundation bed, just having buried the desilting pipe underground in the metalling, when the foundation bed has silt, having opened the slush pump, silt then can enter into the desilting pipe through the gap of metalling, with the silt displacement, and system simple structure, the processing ease is difficult for receiving environmental factor's such as rivers, weather influence, and the desilting is effectual, can not influence the foundation bed structure of having laid the completion, can guarantee the precision of later stage immersed tube installation, improves the life in tunnel.
Description
Technical field
This utility model relates to immersed tube tunnel technical field of construction, specifically, is a kind of immersed tube tunnel rubble bedding desilting system.
Background technology
Subaqueous tunnel is through frequently with immersed tunnelling method, whole tunnel immersed tube is made up of more piece tube coupling, tube coupling is put into one by one on the rubble bedding at the bottom, rubble bedding is installed and is needed to consume a few days from starting to be routed to tube coupling, owing in some waters, silt content is higher, add former mud face, top, foundation trench slope and have certain thickness mud, changed by silt content in flood season, near the impact of the disturbance on water of the boats and ships that travel on navigation channel and atmospheric and climatic factors, increasing of back-silting can be caused, even cause poly-silt, in foundation trench, the own stress of Immersed tunnel and pipeline section will be brought a lot of problem by the mud on rubble bedding.The adverse effect that immersed tube tunnel is caused by mud specifically includes that change rubble bedding mechanical characteristic, affects the power transmission effect of foundation bed structure；Depositing in bedding face, causes the sinking tube coupling cannot implantation；Disturbance to deposit, changes sea water unit weight, affects the anti-floating safety of immersed tube joint；If accompanying mud in blotter basis, after tunnel being runed, immersed tube settlement after construction can be caused excessive because of the consolidation deformation of mud and differential settlement exceeds standard, pipeline section producing bigger moment of flexure, time serious, causes that pipeline section ftractures.
In order to avoid mud affects immersed tube tunnel, currently mainly adopt two ways: one is cladding process, utilize geotextiles that bedding is covered, it is prevented that mud is fallen on bedding；Another kind is desilting method, utilizes rake to inhale ship and absorbs by the mud fallen on bedding.All there is more problem in both modes, the former operates and comparatively bothers, it is easy to is subject to the impact of current, anti-silting poor effect；The latter needs to make rake inhale boatman and makees portion near bedding, under water currents, rake is inhaled ship and is easily rocked, its work portion is made to touch bedding, destroy the bedding laid, affect the installation accuracy of immersed tube, if rake being inhaled operation again after ship is fixed, need again repeatedly to carry out rake and inhale the movement of ship and fixing, add operation easier.
Utility model content
This utility model is for above-mentioned existing sludge treatment mode Problems existing, it is proposed that a kind of new immersed tube tunnel rubble bedding desilting system.
Immersed tube tunnel rubble bedding desilting system of the present utility model, including foundation trench, is equipped with bedding in described foundation trench, described bedding includes the block stone layer and the metalling that arrange from bottom to top, being provided with desilting pipe in described metalling, described desilting tube wall perforate, described desilting pipe is connected to slush pump.
Preferably, described desilting pipe is horizontally set on the bottom of metalling, and the perforate of described desilting pipe is all located at upside.
The beneficial effects of the utility model are: immersed tube tunnel rubble bedding desilting system is when bedding is laid, in metalling, just buried desilting pipe underground, when bedding has mud, open slush pump, mud then can enter in desilting pipe by the gap of metalling, by silt displacement, system structure is simple, processing ease, being not easily susceptible to the impact of the environmental factors such as current, weather, dredging effect is good, without influence on the foundation bed structure laid, ensure that the precision that later stage immersed tube is installed, improve the service life in tunnel.Desilting pipe is positioned at bottom metalling, seat is on block stone layer, alleviate the impact on former foundation bed structure of the desilting pipe, ensure the stability of foundation bed structure, also being their ability to the fully erased mud fallen in metalling gap, desilting pipe perforate is upward, it is possible to enable suction to be more directly delivered to bedding surface, mud is enable to be absorbed completely, it is ensured that the effect that mud cleans.
The exploitation of foundation trench and block stone be thrown into that rammer is flat all adopts traditional work mode, system building difficulty is low, it is possible to ensure higher construction quality.Bedding broken-up laying, desilting segmentation carries out, circulation operation, bedding row does not become disturbance, and can be realized by simple and easy boats and ships, does not affect basis leveling and other operations at next accommodation.Fast interface reserved by desilting pipe, it is simple to be quickly connected with slush pump, is beneficial to segmentation and carries out desilting.Carry out dredging operation again after detection silt depth, farthest reduce the number of times of dredging operation, reduce the cost of operation.Slush pump is contained on dredger, it is possible to using and install connection flexibly, operating flexibility is strong.Slush pump is extracted out and is monitored in real time by desilting process, just quits work, it is to avoid unnecessary energy resource consumption and manpower consumption after up to standard.
Accompanying drawing explanation
Accompanying drawing 1 is the horizontal schematic diagram of this immersed tube tunnel rubble bedding desilting system.
Accompanying drawing 2 is the top cross-sectional view of this immersed tube tunnel rubble bedding desilting system.
Accompanying drawing 3 is longitudinal schematic diagram of this immersed tube tunnel rubble bedding desilting system.
Detailed description of the invention
In order to be able to further appreciate that structure of the present utility model, feature and other purpose, describing in detail as follows in conjunction with appended preferred embodiment, illustrated preferred embodiment is merely to illustrate the technical solution of the utility model non-limiting this utility model.
Detailed description of the invention of the present utility model is as follows:
As shown in Figures 1 to 3, this immersed tube tunnel rubble bedding desilting system includes foundation trench 1, is equipped with bedding in foundation trench 1, and bedding includes the block stone layer 2 and the metalling 3 that arrange from bottom to top.Being provided with desilting pipe 4 in metalling 3, desilting pipe 4 tube wall perforate, desilting pipe 4 is connected to slush pump 5.
During construction, first excavation foundation trench 1, then carries out underlayment process, then is thrown into block stone in foundation trench, and block stone is rammed Heisei block stone layer 2.Then desilting pipe 4 handling sinking is installed on block stone layer 3.Then having laid laying metalling 3 above the block stone layer 2 of desilting pipe 4, being buried underground in metalling 3 by desilting pipe 4, bedding has been laid.Finally slush pump 5 is connected with desilting pipe 4, open slush pump 5, waterway circulating is utilized to be removed by rubble gap by mud, the suction that slush pump 5 produces makes the mud on bedding pass sequentially through the gap of metalling 3, the perforate of desilting pipe 4 enters in desilting pipe 4, is finally taken away from desilting pipe 4 by slush pump 5.
Before desilting pipe 4 is installed, the reserved fast interface 6 connecting slush pump on desilting pipe 4.Desilting pipe 4 horizontal positioned is to block stone layer 2, and metalling 3 makes it be arranged on the bottom of metalling 3 after laying, it is possible to metalling 3 is completely covered, and makes the mud fallen in metalling 3 gap also be able to remove.The perforate of desilting pipe 4 all upward, is positioned at the upside of desilting pipe 4, makes perforate directly be directed at mud, improves cleaning efficiency.As in figure 2 it is shown, desilting pipe 4 can arrange multiple in interval in the plane on block stone layer 2 surface, cover whole metalling comprehensively.
The excavation of foundation trench 1 adopts dredger, and being thrown into and ramming of block stone flat then rammed flat ship by jackstone and carried out, and the handling sinking of desilting pipe 4 is installed and undertaken by crane gear, and laying metalling is undertaken by platform-type or floatation type leveling ship.
Carry out as it is shown on figure 3, bedding lays segmentation, first lay one section of block stone layer 2, then desilting pipe 4 is installed on this section of block stone layer 2, this section of block stone layer 2 is finally laid metalling 3 again, completes the laying of one section of bedding, then carry out the laying of next section of bedding.
Often lay one section of bedding, this section of bedding can adopt multi-beam and the box that back-silts back-silt monitoring, when the silt depth detected exceedes regulation requirement, it is connected with the desilting pipe of this section of bedding by slush pump, carry out silt displacement, after desilting completes, on this section of bedding, just carry out the installation of immersed tube 8, the workload that dredging operation is overall can be alleviated.
Slush pump 5 is arranged on boats and ships 7, when carrying out dredging operation, first utilizes the modes such as rope to be positioned to need above the bedding of desilting in boats and ships 7, is then connected with slush pump 5 by desilting pipe 4 with water under diver, is then turned on slush pump 5 and carries out desilting.The mud that slush pump 5 is extracted out is sent in the cabin of boats and ships 7 or is transported to land either directly through pipeline, in the process that the mud that slush pump 5 is extracted out is discharged, the water quality of mud is discharged in monitoring in real time, when the water quality that mud is discharged in monitoring is clear water, slush pump 5 is out of service, remove and connect, boats and ships 7 are removed Project Areas.
Claims (2)
1. an immersed tube tunnel rubble bedding desilting system, including foundation trench, is equipped with bedding in described foundation trench, described bedding includes the block stone layer and the metalling that arrange from bottom to top, it is characterised in that be provided with desilting pipe in described metalling, described desilting tube wall perforate, described desilting pipe is connected to slush pump.
2. immersed tube tunnel rubble bedding desilting system according to claim 1, it is characterised in that described desilting pipe is horizontally set on the bottom of metalling, the perforate of described desilting pipe is all located at upside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620087319.7U CN205348226U (en) | 2016-01-28 | 2016-01-28 | Immersed tube tunnel rubble foundation bed desilting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620087319.7U CN205348226U (en) | 2016-01-28 | 2016-01-28 | Immersed tube tunnel rubble foundation bed desilting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205348226U true CN205348226U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620087319.7U Active CN205348226U (en) | 2016-01-28 | 2016-01-28 | Immersed tube tunnel rubble foundation bed desilting system |
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| CN (1) | CN205348226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253847A (en) * | 2020-10-17 | 2021-01-22 | 中石化石油工程技术服务有限公司 | Pipeline construction method for sand geological water network area |
-
2016
- 2016-01-28 CN CN201620087319.7U patent/CN205348226U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253847A (en) * | 2020-10-17 | 2021-01-22 | 中石化石油工程技术服务有限公司 | Pipeline construction method for sand geological water network area |
| CN112253847B (en) * | 2020-10-17 | 2022-04-26 | 中石化石油工程技术服务有限公司 | Pipeline construction method for sand geological water network area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160620 Address after: 300461 Tianjin Port Bonded Zone Yuejin Road Shipping Service Center Building No. 8 Patentee after: CCCC First Harbor Engineering Co., Ltd. Patentee after: The Second Engineering Co. of CCCC First Harbor Engineering Co., Ltd. Address before: 266000 Shandong city of Qingdao province Fuzhou City Road No. 16 building in Hong Kong Patentee before: The Second Engineering Co. of CCCC First Harbor Engineering Co., Ltd. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Dejin Inventor after: Feng Haibao Inventor after: Su Changxi Inventor after: Li Zengjun Inventor after: Qu Lili Inventor after: Zhang Xuejun Inventor before: Liu Dejin Inventor before: Feng Haibao Inventor before: Su Changxi Inventor before: Qu Lili Inventor before: Zhang Xuejun |