CN103912017B - A kind of method for correcting error for immersed tube tunnel - Google Patents
A kind of method for correcting error for immersed tube tunnel Download PDFInfo
- Publication number
- CN103912017B CN103912017B CN201310001941.2A CN201310001941A CN103912017B CN 103912017 B CN103912017 B CN 103912017B CN 201310001941 A CN201310001941 A CN 201310001941A CN 103912017 B CN103912017 B CN 103912017B
- Authority
- CN
- China
- Prior art keywords
- jack group
- immersed tube
- tube
- adjusted
- tube coupling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention provides a kind of method for correcting error for immersed tube tunnel, described method for correcting error comprises step jack group be arranged in engagement cavity; Control jack group pushing tow tube coupling to be adjusted until the step that completes; By the step that immersed tube both sides backfill; The step of the jacking force of unloading jack group; Remove the step of jack group.The present invention adopts above-mentioned steps; Jack group is arranged in engagement cavity, carries out accurate adjustment correction in chamber, can reduce the underwater correction difficulty of immersed tube, reduce construction cost, improve correction precision immersed tube; Can realize to joint interacvity air-filling, make the gross pressure in engagement cavity substantially equal at the bottom of tube coupling outside tube water to be adjusted pressure and pipe and the summation of bedding frictional force, thus make tube coupling to be adjusted be in sound critical condition; Only need apply a relatively little jacking force by the jack group of reduced size to immersed tube just can realize rectifying a deviation, effectively reduce the size of jack group, can adapt in the space relatively little with engagement cavity.
Description
Technical field
The present invention relates to a kind of method for correcting error for immersed tube tunnel, particularly relate to a kind of method of in engagement cavity between each immersed tube immersed tube, the tail end of immersed tube being carried out to accurate adjustment correction.
Background technology
At present, highway seabed tunnel is formed by connecting by multiple immersed tube, and the volume and weight of immersed tube is quite large, the generally about 100-200 rice of its length, and immersed tube is arranged on the bedding that lays in advance.The butt end of each immersed tube is provided with GINA waterstop, GINA waterstop plays the effect of sealing, each immersed tube two ends in sinking and docking operation all have end to seal up a door sealing, and after having docked, seal up a door and form engagement cavity with described GINA waterstop in the two ends between two adjacent immersed tube.After immersed tube has docked, although engagement cavity good seal, may there is misalignment of axe in the tail end of the immersed tube of new sinking sinking, when deviation exceedes permissible value, rectifies a deviation to the immersed tube of new sinking with regard to needing.The existing one typically mode of rectifying a deviation is the outer correction of pipe, namely rectifies a deviation in the outer end of immersed tube force.Because the volume of immersed tube is large, weight is large, and the requirement that external force carries out rectifying a deviation for correcting device is higher, and the difficulty of underwater work is large.Therefore, for above deficiency, the present invention is badly in need of providing a kind of method for correcting error for immersed tube tunnel newly.
Summary of the invention
The object of this invention is to provide a kind of method for correcting error for immersed tube tunnel, this method for correcting error utilizes jack group in engagement cavity, treat adjustment tube coupling and applies active force, to realize rectifying a deviation to the accurate adjustment of immersed tube.
The object of the invention is to be achieved through the following technical solutions: a kind of method for correcting error for immersed tube tunnel, described method for correcting error comprises the following steps:
S1, step jack group is arranged in engagement cavity;
The step that tube coupling pushing tow to be adjusted puts in place by S2, control jack group;
The step of the jacking force of S3, unloading jack group;
The step of S4, dismounting jack group.
Described step S1 also comprises the steps:
The step of jack group is installed in the pushing tow position of tube coupling to be adjusted;
In the step of the restraining position mounting limit device of tube coupling to be adjusted.
Described step S2 also comprises the steps:
The step of setting jack group pushing tow stroke;
Jack group treats the step that pushing tow is carried out in the pushing tow position adjusting tube coupling;
The restraining position that simultaneously adjustment tube coupling treated by stopping means carries out spacing step.
Also comprise the steps: between described step S2 and step S3
In tube coupling to be adjusted, carry out secondary holing through survey, and judge whether the step that needs again to rectify a deviation according to survey data;
If desired again rectify a deviation, then reporting measurement data, and return the step of step S2 after calculating the pushing tow stroke of jack group;
Otherwise carry out step S3.
Also comprise the steps: between described step S1 and step S2
By the step that air compression plant is connected with engagement cavity;
According to the force value calculated, control air compression plant to joint interacvity air-filling, until described tube coupling to be adjusted is in the step of sound ultimate limit state.
The step of unloading engagement cavity internal gas pressure to conventional sense is also comprised in described step S3.
The step of removing air compression plant is also comprised in described step S4.
The commissioning preparation process before correction operation was also comprised before described step S1.
Commissioning preparation process before correction operation comprises the following steps:
In immersed tube, carry out holing through survey, and judge whether according to survey data the step needing correction;
If desired rectify a deviation, then reporting measurement data; And calculate the step of the pushing tow stroke of jack group;
Prepare the step of required correcting device;
Correction operation is made to meet the step of construction operation window limit condition.
Described stopping means is one and can be used to spacing jack group.
The present invention compared with prior art has following advantage:
1, the present invention adopts the step controlling jack group and put in place by tube coupling pushing tow to be adjusted; Jack group is arranged in engagement cavity, to carry out in chamber accurate adjustment correction, effectively can reduce the underwater correction difficulty of immersed tube, work progress is simple, safety to immersed tube, reduces construction cost, improves correction precision.
2, the present invention adopts the step be connected with engagement cavity by air compression plant; Can realize to joint interacvity air-filling, make the gross pressure in engagement cavity substantially equal at the bottom of tube coupling outside tube water pressure to be adjusted and pipe with the summation of bedding frictional force, thus make tube coupling to be adjusted be in sound critical condition; Now, only need apply a relatively little jacking force by the jack group of reduced size to immersed tube and just can realize rectifying a deviation, effectively reduce the size of jack group, jack group can be adapted in the space relatively little with engagement cavity; Provide cost savings, improve efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is process chart of the present invention;
Fig. 2 is the present invention's immersed tube stressed schematic diagram when not rectifying a deviation;
Fig. 3 is the stressed schematic diagram of immersed tube after the present invention pressurizes;
Fig. 4 is the stressed schematic diagram of immersed tube after the present invention rectifies a deviation.
Detailed description of the invention
Shown in Figure 1, a kind of method for correcting error for immersed tube tunnel of the present invention, described method for correcting error comprises the following steps:
One, need to do following commissioning preparation before carrying out correction operation:
1, survey crew carries out holing through survey in immersed tube, and records immersed tube tail end deviate, compares, judge whether that needs are rectified a deviation according to immersed tube tail end deviate and deviation allowable value;
2, when deviate exceeds the scope of allowable variation, then correction is needed;
3, deviate is reported, and calculate the pushing tow stroke needed for jack group according to deviate;
4, the correcting device needed for preparation;
5, correction operation is made to meet the step of construction operation window limit condition.
Correcting device required for the present invention comprises jack group and air compression plant; Described jack group is connected with oil path control system, and described air compression plant comprises air compressor, pipeline and control end.
The window of operation described in the present embodiment refers within a continuous print period, and the hydrology, meteorological condition meet correction job requirements, monitors the environmental change in correction job engineering district in real time by forecast monitoring system.
Described in the present embodiment, holing through survey refers to, carries out optics holing through survey, to determine the misalignment of axe obtaining tube coupling tail end, if pipe to be installed slightly departs from, then needs the correction operation carried out described in the present embodiment, corrects it.
The scope of allowable variation described in the present embodiment refers to that the tail end of tube coupling to be adjusted is installed deviation between axis and design axis and is not more than 50mm.
Two, correction job step:
1, jack group is arranged in engagement cavity, installs corresponding with the pushing tow position of tube coupling to be adjusted for jack group;
2, at the restraining position mounting limit device of tube coupling to be adjusted;
3, air compression plant is connected with engagement cavity;
4, the GINA waterstop measured according to pressure sensor compresses the frictional force of hydraulic pressure and immersed tube and bedding outside counter-force, immersed tube, the atmospheric pressure value needing to apply in engagement cavity is drawn by design formulas, by the control end of this atmospheric pressure value input air compression set, air compression plant is controlled to joint interacvity air-filling, until described tube coupling to be adjusted is in sound ultimate limit state by control end;
5, in the control system of jack group, first set the pushing tow stroke of jack group;
6, jack group treat adjustment tube coupling pushing tow position carry out pushing tow;
7, stopping means treat adjustment tube coupling restraining position carry out spacing; Control jack group tube coupling pushing tow to be adjusted is put in place;
8, in immersed tube, carry out secondary holing through survey, and judge whether to need again to rectify a deviation according to the tube coupling tail end deviate to be adjusted measuring gained;
9, if desired again rectify a deviation, then report deviate, and after calculating the pushing tow stroke of jack group, again control jack group and tube coupling pushing tow to be adjusted is put in place;
If 10 do not need correction, then immersed tube two side lock is backfilled;
11, engagement cavity internal gas pressure is unloaded to conventional sense;
12, the jacking force of jack group is unloaded;
13, jack group and air compression plant is removed.
Immersed tube described in the present embodiment is after assigned address sinking, waterpower have crimped, and by holing through survey, the tube coupling tail end deviation as newly installed exceedes permissible value, then need correction; Present invention employs tune method in immersed tube correction; Namely by pacifying immersed tube and tube coupling binding cavity to be adjusted installation jack group (pushing tow jack group is installed in correction side, side mounting limit jack group of not rectifying a deviation), starting oil pump, making tube coupling tail end to be adjusted realize the method for rectifying a deviation.
In view of the distance of current two immersed tube binding cavities is narrower, large scale jack cannot be installed, and in order to save working space, accelerating operating efficiency, attempting new technology, new technology simultaneously, now adopts inner pipe water pressure, air pressure to carry out auxiliary correction to needing the immersed tube of adjustment; Seabed bedding sinking 33 immersed tube.
Determine pushing tow position and the restraining position of tube coupling end face to be adjusted according to holing through survey result in the present embodiment; Engagement cavity described in the present embodiment is made up of the GINA waterstop installed between tube coupling, tube coupling to be adjusted and two immersed tube.Stopping means described in the present embodiment is one and can be used to spacing jack group; Jack group described in the present embodiment comprises multiple hydraulic jack in vertically arrangement.The expansion link of this jack group and the end face of described tube coupling to be adjusted hinged.In the present invention, said holing through survey data mainly refer to the tube coupling tail end deviate to be adjusted measuring gained.
The present invention adopts the step controlling jack group and put in place by tube coupling pushing tow to be adjusted; Jack group is arranged in engagement cavity, to carry out in chamber accurate adjustment correction, can effectively reduce the underwater correction difficulty of immersed tube, work progress is simple, safety to immersed tube, reduces construction cost, improves correction precision.The present invention adopts the step be connected with engagement cavity by air compression plant; Can realize to joint interacvity air-filling, make the gross pressure in engagement cavity substantially equal at the bottom of tube coupling outside tube water to be adjusted pressure and pipe and the summation of bedding frictional force, thus make tube coupling to be adjusted be in sound critical condition; Now, only need apply a relatively little jacking force by undersized jack group to immersed tube just can realize rectifying a deviation.
Force analysis when three, different correction state being in for immersed tube:
The force analysis of immersed tube when 1, rectifying a deviation:
Shown in Figure 2, now tube coupling to be adjusted is in equilibrium state.
If P
0for water pressure; F is immersed tube and bedding frictional force; F
gfor the compression counter-force (following general designation compresses counter-force) of GINA waterstop between tube coupling;
Then P
0=f+F
g;
Now, under hydraulic pressure and frictional force effect, GINA waterstop inwardly compresses, and makes immersed tube tube coupling be in equilibrium state.
2, the immersed tube force analysis after engagement cavity being carried out pneumatic compression:
Shown in Figure 3, now tube coupling to be adjusted is in sound critical condition.
If F
gasfor the air pressure in engagement cavity;
Then F
g+ F
gas=P
0+ f;
Now, engagement cavity internal gas pressure is in sound critical condition and GINA waterstop does not open.
3, the force analysis of immersed tube when the correction of jack group puts in place:
Shown in Figure 4, now the pushing end of tube coupling to be adjusted is along pushing tow stroke to movement, stops after correction puts in place;
If F
push awayfor jack group jacking force;
Then F
g+ F
gas+ F
push away=P
0+ f ';
When jack group is rectified a deviation to B point, apply F
push away; Now, F
push away>0, the stressed of immersed tube horizontal direction can increase, and immersed tube can prolong jacking force direction and move horizontally, and is namely first that GINA waterstop evenly opens, instead of prolongs stopping means and rotate.According to analysis, when engagement cavity internal gas pressure increases, be equivalent to water pressure and reduce, its principle reduces similar to the depth of water, and now the decrement of GINA can reduce, and illustrates that first immersed tube should move flat by Yan Chenguanshui; Immersed tube can rotate around the stopping means of A point subsequently, until tube coupling correction puts in place.
Claims (6)
1. for a method for correcting error for immersed tube tunnel, it is characterized in that: described method for correcting error comprises the following steps:
S1, step jack group is arranged in engagement cavity;
The step that tube coupling pushing tow to be adjusted puts in place by S2, control jack group;
The step of the jacking force of S3, unloading jack group;
The step of S4, dismounting jack group;
Described step S1 also comprises the steps:
The step of jack group is installed in the pushing tow position of tube coupling to be adjusted;
In the step of the restraining position mounting limit device of tube coupling to be adjusted;
Described step S2 also comprises the steps:
The step of setting jack group pushing tow stroke;
Jack group treats the step that pushing tow is carried out in the pushing tow position adjusting tube coupling;
The restraining position that simultaneously adjustment tube coupling treated by stopping means carries out spacing step;
Also comprise the steps: between described step S2 and step S3
In tube coupling to be adjusted, carry out secondary holing through survey, and judge whether the step that needs again to rectify a deviation according to survey data;
If desired again rectify a deviation, then reporting measurement data, and return the step of step S2 after calculating the pushing tow stroke of jack group;
Otherwise carry out step S3;
Also comprise the steps: between described step S1 and step S2
By the step that air compression plant is connected with engagement cavity;
According to the force value calculated, control air compression plant to joint interacvity air-filling, until described tube coupling to be adjusted is in the step of sound ultimate limit state.
2. the method for correcting error for immersed tube tunnel according to claim 1, is characterized in that: also comprise the step of unloading engagement cavity internal gas pressure to conventional sense in described step S3.
3. the method for correcting error for immersed tube tunnel according to claim 2, is characterized in that: also comprise the step of removing air compression plant in described step S4.
4. according to the method for correcting error for immersed tube tunnel of claim 1-3 described in one of them, it is characterized in that: before described step S1, also comprise the commissioning preparation process before correction operation.
5. the method for correcting error for immersed tube tunnel according to claim 4, is characterized in that: the commissioning preparation process before correction operation comprises the following steps:
In immersed tube, carry out holing through survey, and judge whether according to survey data the step needing correction;
If desired rectify a deviation, then reporting measurement data; And calculate the step of the pushing tow stroke of jack group;
Prepare the step of required correcting device;
Correction operation is made to meet the step of construction operation window limit condition.
6. the method for correcting error for immersed tube tunnel according to claim 1, is characterized in that: described stopping means is one and can be used to spacing jack group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310001941.2A CN103912017B (en) | 2013-01-05 | 2013-01-05 | A kind of method for correcting error for immersed tube tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310001941.2A CN103912017B (en) | 2013-01-05 | 2013-01-05 | A kind of method for correcting error for immersed tube tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103912017A CN103912017A (en) | 2014-07-09 |
| CN103912017B true CN103912017B (en) | 2015-10-28 |
Family
ID=51037988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310001941.2A Active CN103912017B (en) | 2013-01-05 | 2013-01-05 | A kind of method for correcting error for immersed tube tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103912017B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652481B (en) * | 2015-02-16 | 2016-06-29 | 中交一航局第二工程有限公司 | The device and method that a kind of tube coupling disengages |
| CN104652479B (en) * | 2015-02-16 | 2016-06-29 | 中交一航局第二工程有限公司 | The device and method that a kind of tube coupling disengages |
| 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 |
| CN110726003B (en) * | 2019-09-27 | 2021-02-26 | 中建七局第二建筑有限公司 | Deviation rectifying construction method in installation process of glass fiber reinforced plastic sand inclusion pipe |
| CN112683775B (en) * | 2020-11-18 | 2022-10-25 | 中交公路规划设计院有限公司 | Steel shell concrete immersed tube tunnel push-out type final joint sliding track friction force testing system |
| CN114293589B (en) * | 2022-01-28 | 2022-11-18 | 华中科技大学 | Intelligent waterproof and anti-seismic immersed tunnel pipe joint |
| CN116164715B (en) * | 2022-12-21 | 2023-09-19 | 中交第一航务工程局有限公司 | Underwater posture rechecking method for push type final joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003027510A (en) * | 2001-07-19 | 2003-01-29 | Penta Ocean Constr Co Ltd | Immersed caisson joining method |
| JP2003049441A (en) * | 2001-08-03 | 2003-02-21 | Toyo Constr Co Ltd | Direction correcting device and method for submerged caisson |
| CN102691314A (en) * | 2012-06-11 | 2012-09-26 | 中交一航局第二工程有限公司 | Internal deviation correcting fine adjusting system and adjusting technology for immersed tubes |
| CN102704508A (en) * | 2012-05-29 | 2012-10-03 | 中交一航局第二工程有限公司 | Immersed tube bottom end fork truck type deviation correcting fine adjusting system and regulating process of system |
-
2013
- 2013-01-05 CN CN201310001941.2A patent/CN103912017B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003027510A (en) * | 2001-07-19 | 2003-01-29 | Penta Ocean Constr Co Ltd | Immersed caisson joining method |
| JP2003049441A (en) * | 2001-08-03 | 2003-02-21 | Toyo Constr Co Ltd | Direction correcting device and method for submerged caisson |
| CN102704508A (en) * | 2012-05-29 | 2012-10-03 | 中交一航局第二工程有限公司 | Immersed tube bottom end fork truck type deviation correcting fine adjusting system and regulating process of system |
| CN102691314A (en) * | 2012-06-11 | 2012-09-26 | 中交一航局第二工程有限公司 | Internal deviation correcting fine adjusting system and adjusting technology for immersed tubes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103912017A (en) | 2014-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103912017B (en) | A kind of method for correcting error for immersed tube tunnel | |
| US10253904B1 (en) | Integrated immersed tube coupling and installation method thereof as well as installation closure method of immersed tube coupling | |
| US11105708B2 (en) | Bidirectional variable cross-section water-pressure bearer cycle test system for coal mine water inrush model test | |
| CN108548763B (en) | Three-dimensional model test system and method for grouting reinforcement stability under erosion and seepage effects | |
| CN105696540A (en) | Measuring method and device for foundation pit deep horizontal displacement and underground water level | |
| CN208517944U (en) | A kind of Metro station excavation bracing members axle power autocompensation installation | |
| CN102691314B (en) | Internal deviation correcting fine adjusting system and adjusting technology for immersed tubes | |
| CN205184149U (en) | Ocean double skin duct welding equipment of being geared to needs of job | |
| US20160130905A1 (en) | Flow isolation for blowout preventer hydraulic control systems | |
| CN103543071A (en) | Novel extreme outer pressure test device and method for hemispherical concrete shell | |
| CN103901180A (en) | Method for indirectly obtaining stress and deformation state of underground roadway surrounding rock | |
| CN104595728A (en) | Pre-warning monitoring system for leakage of underground pipeline joint and working method of system | |
| CN102721381A (en) | Shield tail clearance detecting and displaying system as well as method and shield machine thereof | |
| CN204962306U (en) | Pipeline control system | |
| CN207144000U (en) | FS final spice outfititem | |
| CN110908299B (en) | Intelligent control system for construction of assembled underground structure | |
| CN112965538A (en) | Foundation pit dewatering control system based on dynamic anti-surge | |
| CN103528897B (en) | Coarse-grained soil large triaxial test data critical conditions parameter determination method under high confining pressure | |
| CN104048608A (en) | Device for measuring thermal displacement of pipeline | |
| CN103926168B (en) | Density of sea water real-time monitoring system and monitoring method | |
| CN112922036A (en) | Automatic control system and method for underwater attitude adjustment of immersed tube | |
| CN102996950B (en) | Flexible rotating expansion pipe joint | |
| CN105064681A (en) | Installing method of steel structure foundation screw bolt | |
| CN112924296A (en) | Submarine shield tunnel stress deformation and water stop failure test system and method | |
| CN110030431A (en) | A kind of Curve Pipe Jacking jacking posture method for correcting error |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |