CN102691314B - Internal deviation correcting fine adjusting system and adjusting technology for immersed tubes - Google Patents
Internal deviation correcting fine adjusting system and adjusting technology for immersed tubes Download PDFInfo
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- CN102691314B CN102691314B CN201210188487.1A CN201210188487A CN102691314B CN 102691314 B CN102691314 B CN 102691314B CN 201210188487 A CN201210188487 A CN 201210188487A CN 102691314 B CN102691314 B CN 102691314B
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- 238000002788 crimping Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
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- 230000008878 coupling Effects 0.000 claims description 6
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- 230000001360 synchronised effect Effects 0.000 claims description 3
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Abstract
The invention relates to an internal deviation correcting fine adjusting system and an internal deviation correcting fine adjusting technology for immersed tubes. The system comprises a control system and a mechanical system, wherein the mechanical system comprises a hydraulic pump station, a jack group and a jack ejector rod group; the jack group is arranged at the front end of the immersed tube to be installed, and the jack ejector rod group is arranged at the tail ends of the immersed tube to be installed and the installed immersed tube through flanges; the jack group is formed by connecting a plurality of jacks with limiting and jacking functions together through fixing racks; and the jack ejector rod group is formed by connecting a plurality of jack ejector rods together through the fixing racks. By adopting internal deviation correction, the deviation correcting fine adjusting system is simple and reasonable in structure and convenient to operate; when an immersed tube is installed, the immersed tube is placed in a combination cavity of the installed immersed tube and the immersed tube to be installed, so that a broken stone base bed is not required; influence of natural conditions such as wave, water flow and wind is reduced through a wave compensator in the adjusting process; and installation is controlled through the control system, so that the immersed tubes are positioned accurately, and time and labor are saved.
Description
Technical field
The present invention relates to immersed tube tunnel construction technology, specifically, relates to immersed tube inner correction regulating system and adjusting process thereof in a kind of immersed tube tunnel work progress.
Background technology
Immersed tunnelling method is a kind of construction method in building tunnel, the bottom.Immersed tube tunnel be exactly by several prefabricated section respectively transportation by driving to sea (river surface) scene, and sinking is arranged in the foundation trench of having dredged one by one, the submerged tunnel of building with the method.At present, in immersed tube tunnel work progress, in order to improve the planarization of trench bottom surfaces, the subaqueous tunnel that the overwhelming majority builds up all adopts the method for leveling up.Wherein, the early stage method of leveling up mostly adopting is a kind of first paving method that first sanding masonry is bed course before Pipe Sinking, it is by hoist engine and the special paving machine of scraping or the steel plough of cable control on operation ship, the guide rail that arrange, that there is regulation absolute altitude and the gradient along trench bottom surfaces both sides, the bedding and padding that put down are back and forth struck off, and this method shortcoming is more; The method that another kind is leveled up is filled out method after being, first by Pipe Sinking on the temporary support in trench bottom, and make to manage the end and form certain space (default hydraulic jack in pipeline section base plate can be pushed up to bearing in the time of location, regulate pipeline section elevation), use subsequently course filling closely knit.In above-mentioned two kinds of methods, the object of processing sinking pipeline section basis is to make trench bottom surfaces smooth, rather than in order to improve the bearing capacity of ground, the groove of excavation under water, its bottom surface is uneven, if do not flattened, after Pipe Sinking, can cause local failure because of ground discontinuity, or ftracture because of differential settlement.
The essential condition that is suitable for immersed tunnelling method construction is: water channel stabilization of river bed and current are not too urgent.When, immersed tube aspect ratio large in the depth of water is large, need obviously to increase jack configuration, conventionally adopt sinking to refute assisted Extraction and feed to the power of hanging oneself to reduce immersed tube to bedding frictional force, refute and assist installation stricter to wave height requirement by sinking, general job wave height requirement≤0.4m.At present, adopt sinking to refute auxiliary case of installing and only have Pusan-huge Ji immersed tube tunnel and Oresund immersed tube tunnel, wherein, Pusan-huge Ji immersed tube tunnel is to operation wave height requirement≤0.4m; In the immersed tube tunnel construction of Oresund, can find out from map, job site surrounding has formed shielding, and sea situation is better.And require while being greater than 0.4m for wave height, owing to being subject to the impact of the natural conditions such as wave, current, wind, while adopting sinking to refute auxiliary installation, the power amplitude of variation of hanging is very large, and larger to control effect is installed, jack thrust is large, control difficulty, and installation accuracy is inaccurate, need the time to adjust, waste time and energy.
Summary of the invention
The present invention is directed to the thrust that existed by the effect of natural conditions such as wave, current, wind when immersed tube in existing immersed tube tunnel work progress is installed large, control difficulty, the problems referred to above such as waste time and energy, a kind of immersed tube inner correction accurate adjustment system and adjusting process thereof are provided, this system is positioned at the binding cavity that immersed tube and immersed tube to be installed are installed while use, to the no requirement (NR) of rubble bedding, the immersed tube correction while being applicable to immersed tube tunnel construction.
Technical scheme of the present invention is: the inner correction of a kind of immersed tube accurate adjustment system, this system comprises control system and mechanical system, mechanical system comprises hydraulic power unit, jack group and mandril of lifting jack group, jack group is arranged on the front end of immersed tube to be installed by support, mandril of lifting jack group is arranged on immersed tube to be installed by flange and the tail end of immersed tube has been installed; Jack group is to have by multiple one group of jack that jack spacing, pushing tow function links together by fixed mount, and mandril of lifting jack group is the one group of mandril of lifting jack multiple mandril of lifting jacks being linked together by fixed mount.
Preferably, in jack group, the quantity of jack is identical with the quantity of mandril of lifting jack in mandril of lifting jack group.
Preferably, jack and mandril of lifting jack are provided with 6.
Preferably, jack and mandril of lifting jack are provided with 4 or 8 or 10.
Preferably, control system and hydraulic power unit are all placed on and have installed in immersed tube.
Another object of the present invention is to provide the inner correction of a kind of immersed tube adjusting process, adopt the inner correction of immersed tube accurate adjustment system to regulate, its adjusting process step is:
(1) installation of the inner correction of immersed tube accurate adjustment system: being arranged in depressed place of the inner correction of immersed tube accurate adjustment system jack carried out, six jack are connected to one group by fixed support, when secondary fitting-out, jack group is fixedly mounted on to the front end of immersed tube to be installed by support, and leave oil pipe, displacement data wire terminal, do waterproofing work; The installation industry of the inner correction of immersed tube accurate adjustment system mandril of lifting jack is carried out in depressed place, by flange, mandril of lifting jack is connected with immersed tube section, is arranged on the tail end of immersed tube to be installed.
(2) immersed tube sinking, waterpower crimping: immersed tube sinking, drawing, waterpower crimping.
(3) holing through survey: after the crimping of immersed tube waterpower completes, open the steel measured hole of sealing up a door and carry out holing through survey, when tube coupling level and tunnel axis deviation≤35mm, do not adjust, when tube coupling level and tunnel axis deviation > 35mm, carry out immersed tube tail end lateral adjustments to be installed by the inner correction of immersed tube regulating system, until immersed tube misalignment of axe to be installed meets the demands.
(4) circuit and push rod connect: need to regulate time, open steel and seal up a door the connection of jack group pipeline, and by mandril of lifting jack group docking jack group, manual debugging puts in place.
(5) the inner correction of immersed tube accurate adjustment system correction: hydraulic power unit and control system are placed on installs in immersed tube, after circuit has been connected with mandril of lifting jack group; First each spacing jack is applied to pre-jacking force locking spacing; Pushing tow jack applies pre-jacking force, then sets and regulates jack stroke; Operating period closes steel and seals up a door, and keeps measured hole open mode; Two sinkings are refuted lifting simultaneously and are reduced immersed tube to be installed to bedding pressure, guarantee that immersed tube to be installed is not less than 400t to bedding pressure, and refute by sinking the passive heave compensator arranging on hanger rope and reduce the impact of wave on the power of hanging; Pushing tow jack starts to load rectifies a deviation, and reaches after default stroke, and the inner correction of immersed tube regulating system stops pushing tow, and off-load sinking is refuted the power of hanging.
(6) Real-Time Monitoring: correction operating period utilizes total powerstation to observe immersed tube tail end correction situation by measured hole.
(7) jack group unloading: before the unloading of jack group, adopt and add after Ballast Water maximal density 5% negative buoyancy force, immersed tube to be installed meets in 1.3m/s flow velocity drag force and the requirement of effect of water pressure stability inferior as calculated; For guaranteeing safety, after locking backfill, more synchronous, the spacing jack of load shedding and pushing tow jack top power, observe immersed tube tail end stable case simultaneously.
(8) rectified a deviation: after immersed tube to be installed has been rectified a deviation, remove the inner correction of immersed tube regulating system.
The invention has the beneficial effects as follows: the present invention's accurate adjustment system architecture advantages of simple, easy to operate of rectifying a deviation, in the time that immersed tube is installed, be positioned in the binding cavity that immersed tube and immersed tube to be installed are installed, for the inside correction of immersed tube, to the no requirement (NR) of rubble bedding, and in adjustment process, reduce the impact of the natural conditions such as wave, current, wind by heave compensator, and install by control system control, accurate positioning, installation accuracy is high, time saving and energy saving.
Accompanying drawing explanation
The plane structure schematic diagram of accompanying drawing 1 specific embodiment of the invention immersed tube jack to be installed group and mandril of lifting jack group.
Accompanying drawing 2 is the partial enlarged drawing of A part in specific embodiment of the invention accompanying drawing 1.
Accompanying drawing 3 is immersed tube to connect the flat surface structural representation after the crimping of specific embodiment of the invention waterpower.
The A-A cross-sectional view that accompanying drawing 4 is accompanying drawing 3 of the present invention.
Accompanying drawing 5 for the specific embodiment of the invention adjust after jack state diagram.
Accompanying drawing 6 is immersed tube mounting plane structural representation after the crimping of specific embodiment of the invention sinking waterpower completes.
Accompanying drawing 7 rubs in moving horizontally the immersed tube mounting plane structural representation of critical condition for specific embodiment of the invention jack thrust overcomes.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
The inner correction of a kind of immersed tube accurate adjustment system, this system comprises control system and mechanical system, mechanical system comprises hydraulic power unit, jack group 1 and mandril of lifting jack group 2, jack group 1 is arranged on the front end of immersed tube to be installed by support, mandril of lifting jack group 2 is arranged on immersed tube to be installed by flange 3 and the tail end of immersed tube has been installed; Control system and hydraulic power unit are all placed on have been installed in immersed tube.Jack group 1 is for having one group of jack that jack 5 spacing, pushing tow function links together, the one group mandril of lifting jack of mandril of lifting jack group 2 for multiple mandril of lifting jacks 6 being linked together by fixed mount 4 by fixed mount 4 by multiple.In jack group 1, the quantity of jack 5 is identical with the quantity of mandril of lifting jack 6 in mandril of lifting jack group 2.Jack 5 and mandril of lifting jack 6 are provided with 6.
Its adjusting process step is:
(1) installation of the inner correction of immersed tube accurate adjustment system: being arranged in depressed place of the inner correction of immersed tube accurate adjustment system jack carried out, six jack are connected to one group by fixed support, when secondary fitting-out, jack group is fixedly mounted on to the front end of immersed tube to be installed by support, and leave oil pipe, displacement data wire terminal, do waterproofing work; The installation industry of the inner correction of immersed tube accurate adjustment system mandril of lifting jack is carried out in depressed place, by flange, mandril of lifting jack is connected with immersed tube section, is arranged on the tail end of immersed tube to be installed.
(2) immersed tube sinking, waterpower crimping: immersed tube sinking, drawing, waterpower crimping, after the crimping of immersed tube waterpower completes, under least favorable state, waterstop evenly compresses, and as shown in Figure 6, wherein, f is frictional force.
(3) holing through survey: after the crimping of immersed tube waterpower completes, open the steel measured hole of sealing up a door and carry out holing through survey, when tube coupling level and tunnel axis deviation≤35mm, do not adjust, when tube coupling level and tunnel axis deviation > 35mm, carry out immersed tube tail end lateral adjustments to be installed by the inner correction of immersed tube regulating system, until immersed tube misalignment of axe to be installed meets the demands.
(4) circuit and push rod connect: need to regulate time, open steel and seal up a door the connection of jack group pipeline, and by mandril of lifting jack group docking jack group, manual debugging puts in place, as shown in Figure 7, and after installation jack puts in place, jack thrust overcome friction is in moving horizontally critical condition, wherein, A end jack is spacing, B end jack pushing tow, f is frictional force, now, B end pushing tow jack thrust increases, and direction is contrary with original direction.
(5) the inner correction of immersed tube accurate adjustment system correction: hydraulic power unit and control system are placed on installs in immersed tube, after circuit has been connected with mandril of lifting jack group, first A is held spacing jack to apply pre-jacking force locking spacing, B end pushing tow jack applies pre-jacking force, frictional force f direction starts to change, and then sets and regulates jack stroke; Operating period closes steel and seals up a door, and keeps measured hole open mode; Two sinkings are refuted lifting simultaneously and are reduced immersed tube to be installed to bedding pressure, guarantee that immersed tube to be installed is not less than 400t to bedding pressure, and refute by sinking the passive heave compensator arranging on hanger rope and reduce the impact of wave on the power of hanging; B end pushing tow jack starts to load rectifies a deviation, and when correction, immersed tube to be installed starts to hold spacing jack rotation around A, reaches after default stroke, and the inner correction of immersed tube regulating system stops pushing tow, and off-load sinking is refuted the power of hanging.
(6) Real-Time Monitoring: correction operating period utilizes total powerstation to observe immersed tube tail end correction situation by measured hole.
(7) jack group unloading: before the unloading of jack group, adopt and add after Ballast Water maximal density 5% negative buoyancy force, immersed tube to be installed meets in 1.3m/s flow velocity drag force and the requirement of effect of water pressure stability inferior as calculated; For guaranteeing safety, after locking backfill, more synchronous, the spacing jack of load shedding and pushing tow jack top power, observe immersed tube tail end stable case simultaneously.
(8) rectified a deviation: after immersed tube to be installed has been rectified a deviation, remove the inner correction of immersed tube regulating system.
According to differences such as the lengths of immersed tube to be installed and immersed tube tunnel, jack and mandril of lifting jack all can also be set to 4 or 8 or 10.
The above specific embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (3)
1. the inner correction of an immersed tube adjusting process, is characterized in that: adopt the inner correction of immersed tube accurate adjustment system to regulate, its adjusting process step is:
(1) installation of the inner correction of immersed tube accurate adjustment system: being arranged in depressed place of the inner correction of immersed tube accurate adjustment system jack carried out, six jack are connected to one group by fixed support, when secondary fitting-out, jack group is fixedly mounted on to the front end of immersed tube to be installed by support, and leave oil pipe, displacement data wire terminal, do waterproofing work; The installation industry of the inner correction of immersed tube accurate adjustment system mandril of lifting jack is carried out in depressed place, by flange, mandril of lifting jack is connected with immersed tube section, is arranged on the tail end of immersed tube to be installed;
(2) immersed tube sinking, waterpower crimping: immersed tube sinking, drawing, waterpower crimping;
(3) holing through survey: after the crimping of immersed tube waterpower completes, open the steel measured hole of sealing up a door and carry out holing through survey, when tube coupling level and tunnel axis deviation≤35mm, do not adjust, when tube coupling level and tunnel axis deviation > 35mm, carry out immersed tube tail end lateral adjustments to be installed by the inner correction of immersed tube regulating system, until immersed tube misalignment of axe to be installed meets the demands;
(4) circuit and push rod connect: need to regulate time, open steel and seal up a door the connection of jack group pipeline, and by mandril of lifting jack group docking jack group, manual debugging puts in place;
(5) the inner correction of immersed tube accurate adjustment system correction: hydraulic power unit and control system are placed on installs in immersed tube, after circuit has been connected with mandril of lifting jack group; First each spacing jack is applied to pre-jacking force locking spacing; Pushing tow jack applies pre-jacking force, then sets and regulates jack stroke; Operating period closes steel and seals up a door, and keeps measured hole open mode; Two sinkings are refuted lifting simultaneously and are reduced immersed tube to be installed to bedding pressure, guarantee that immersed tube to be installed is not less than 400t to bedding pressure, and refute by sinking the passive heave compensator arranging on hanger rope and reduce the impact of wave on the power of hanging; Pushing tow jack starts to load rectifies a deviation, and reaches after default stroke, and the inner correction of immersed tube regulating system stops pushing tow, and off-load sinking is refuted the power of hanging;
(6) Real-Time Monitoring: correction operating period utilizes total powerstation to observe immersed tube tail end correction situation by measured hole;
(7) jack group unloading: before the unloading of jack group, adopt and add after Ballast Water maximal density 5% negative buoyancy force, immersed tube to be installed meets in 1.3m/s flow velocity drag force and the requirement of effect of water pressure stability inferior as calculated; For guaranteeing safety, after locking backfill, more synchronous, the spacing jack of load shedding and pushing tow jack top power, observe immersed tube tail end stable case simultaneously;
(8) rectified a deviation: after immersed tube to be installed has been rectified a deviation, remove the inner correction of immersed tube regulating system.
2. the inner correction of immersed tube as claimed in claim 1 adjusting process, it is characterized in that: the described inner correction of immersed tube accurate adjustment system comprises control system and mechanical system, mechanical system comprises hydraulic power unit, jack group and mandril of lifting jack group, jack group is arranged on the front end of immersed tube to be installed by support, mandril of lifting jack group is arranged on immersed tube to be installed by flange and the tail end of immersed tube has been installed; Jack group is to have by multiple one group of jack that jack spacing, pushing tow function links together by fixed mount, and mandril of lifting jack group is the one group of mandril of lifting jack multiple mandril of lifting jacks being linked together by fixed mount.
3. the inner correction of immersed tube as claimed in claim 2 adjusting process, is characterized in that: in jack group, the quantity of jack is identical with the quantity of mandril of lifting jack in mandril of lifting jack group.
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| CN201210188487.1A CN102691314B (en) | 2012-06-11 | 2012-06-11 | Internal deviation correcting fine adjusting system and adjusting technology for immersed tubes |
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| CN201210188487.1A CN102691314B (en) | 2012-06-11 | 2012-06-11 | Internal deviation correcting fine adjusting system and adjusting technology for immersed tubes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103912015B (en) * | 2012-12-31 | 2016-02-03 | 中交第一航务工程局有限公司 | Tube coupling drawing system |
| CN103912014B (en) * | 2012-12-31 | 2015-10-28 | 中交第一航务工程局有限公司 | Installing rack in a kind of chamber of interior deviation correcting device |
| CN103912017B (en) * | 2013-01-05 | 2015-10-28 | 中交第一航务工程局有限公司 | A kind of method for correcting error for immersed tube tunnel |
| CN103195091B (en) * | 2013-04-09 | 2015-04-22 | 中交一航局第二工程有限公司 | Immersed tube top 3D (three dimensional) accurate adjustment system and method |
| CN104197142B (en) * | 2014-09-25 | 2016-11-23 | 中国化学工程第三建设有限公司 | A kind of method of heating pipeline compensator prestretched |
| CN104652480B (en) * | 2015-02-16 | 2017-03-01 | 中交一航局第二工程有限公司 | A kind of method of adjustment of immersed tube axis |
| CN107476342B (en) * | 2017-08-31 | 2019-09-13 | 上海振华重工(集团)股份有限公司 | A kind of immersed tube tunnel final connector pipe bending cylinder support installation method |
| CN107700543A (en) * | 2017-09-01 | 2018-02-16 | 中交第航务工程局有限公司 | Longitudinally adjusted system and method after immersed tube tunnel final joint implantation |
| CN107687181A (en) * | 2017-09-01 | 2018-02-13 | 中交第航务工程局有限公司 | FS final spice entirety fine adjustment method |
| CN107642100B (en) * | 2017-09-01 | 2019-06-07 | 中交第一航务工程局有限公司 | Device and method for the draining of FS final spice engagement cavity |
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| CN101446201A (en) * | 2008-12-19 | 2009-06-03 | 上海隧道工程股份有限公司 | Method for rectifying and selecting tunnel segment |
| CN202787339U (en) * | 2012-06-11 | 2013-03-13 | 中交第一航务工程局有限公司 | Immersed tube inner portion rectifying and adjusting system |
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Owner name: CCCC FIRST HARBOR ENGINEERING COMPANY LTD. Free format text: FORMER OWNER: THE SECOND ENGINEERING CO. OF CCCC FIRST HARBOR ENGINEERING CO., LTD. Effective date: 20121022 Owner name: THE SECOND ENGINEERING CO. OF CCCC FIRST HARBOR EN Effective date: 20121022 |
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Inventor after: Lin Ming Inventor after: Yang Ruiliang Inventor after: Li Dezhao Inventor after: Wang Qiang Inventor after: Li Yiyong Inventor after: Zhai Shihong Inventor after: Li Zengjun Inventor after: Feng Haibao Inventor after: Liu Dejin Inventor after: Qu Lili Inventor after: Su Faqiang Inventor after: Su Changxi Inventor before: Feng Haibao Inventor before: Liu Dejin Inventor before: Qu Lili Inventor before: Su Changxi Inventor before: Yang Ruiliang Inventor before: Li Dezhao |
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Free format text: CORRECT: ADDRESS; FROM: 266071 QINGDAO, SHANDONG PROVINCE TO: 300461 TANGGU, TIANJIN Free format text: CORRECT: INVENTOR; FROM: FENG HAIBAO LIU DEJIN QU LILI SU CHANGXI YANG RUILIANG LI DEZHAO TO: LIN MING LI YIYONG ZHAI SHIHONG LI ZENGJUN FENG HAIBAO LIU DEJIN QU LILI SU FAQIANG SU CHANGXI YANG RUILIANG LI DEZHAO WANG QIANG |
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Effective date of registration: 20121022 Address after: 300461 Tianjin Free Trade Zone Yuejin Road shipping service center, building 8 Applicant after: CCCC FIRST HARBOR ENGINEERING CO.,LTD. Applicant after: NO.2 ENGINEERING COMPANY LTD. OF CCCC FIRST HARBOR ENGINEERING Co.,Ltd. Address before: 266071 Shandong city of Qingdao province Fuzhou City Road No. 16 building in Hong Kong Applicant before: NO.2 ENGINEERING COMPANY LTD. OF CCCC FIRST HARBOR ENGINEERING Co.,Ltd. |
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Correction item: Applicant Correct: CCCC First Harbor Engineering Co.,Ltd.|300461 Tianjin Free Trade Zone Yuejin Road Shipping Service Center Building No. 8|NO.2 ENGINEERING COMPANY LTD. OF CCCC FIRST HARBOR ENGINEERING Co.,Ltd. False: CCCC FIRST HARBOR ENGINEERING CO.,LTD.|300461 No. 8 building, Yuejin shipping service center, Tianjin Free Trade Zone|NO.2 ENGINEERING COMPANY LTD. OF CCCC FIRST HARBOR ENGINEERING Co.,Ltd. Number: 47 Volume: 28 |
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| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Qi Document name: Notice of Qualified Procedures |