CN204533812U - A kind of slurry-water balance type jacking construction system - Google Patents
A kind of slurry-water balance type jacking construction system Download PDFInfo
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- CN204533812U CN204533812U CN201520194108.9U CN201520194108U CN204533812U CN 204533812 U CN204533812 U CN 204533812U CN 201520194108 U CN201520194108 U CN 201520194108U CN 204533812 U CN204533812 U CN 204533812U
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Abstract
The utility model relates to a kind of slurry-water balance type jacking construction system, a kind of slurry-water balance type jacking construction system, it comprises open caisson equipment installation module, measures construction module, construction of working shaft module, ground installation installation module, slip casting module, spoil disposal module, measurement and correction module and interface processing module.The beneficial effects of the utility model: during native system construction, required total jacking power is less, the long distance jacking especially in stickiness soil layer, and can long distance delivery earth, uninterrupted in jack-in process, construction is fast, and the duration is short.
Description
Technical field
The utility model relates to mechanical field, in particular, relates to a kind of slurry-water balance type jacking construction system.
Background technique
Along with the high speed development that Chinese Urbanization is built, no matter open up new city or reconstruction of the old city town, the problem of municipal pipeline laying construction becomes increasingly conspicuous, traditional slot grooving because destroying road, block the traffic, environmental pollution, ecological failure etc., be more and more not suitable for the construction needs of some special areas.This just impels construction and unit in charge of construction's joint research, adopts new technology, the pipe jacking construction technique of new technology to be to replace old method.
Adopt Slurry Balanced Pipe Jacking Construction engineering method to be one of main method of mechanized pipe pushing construction in described slurry-water balance type jacking construction system, belong to mechanization, long distance Construction Technology of With standing Operation.In view of small-bore jacking pipe construction process is to the narrow limitation of some pipes laying or reparation, my company is in the process adopting mechanical slurry-water balance type pipe jacking construction technique, Practical Project is studied repeatedly and through Construction practices for many years, summarizes mechanical slurry-water balance type medium-sized bore jacking construction engineering method.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of slurry-water balance type jacking construction system, in order to the pipework of jacking construction.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of slurry-water balance type jacking construction system, and it comprises open caisson equipment installation module, measures construction module, construction of working shaft module, ground installation installation module, slip casting module, spoil disposal module, measurement and correction module and interface processing module.
Described open caisson equipment installation module, measurement construction module, construction of working shaft module, ground installation installation module, slip casting module, spoil disposal module, measurement and correction module are connected respectively successively with interface processing module;
Described open caisson equipment installation module comprises guide rails assembling unit, rear parados installation unit, back seat jack installation unit, hole sealing installation unit and head installation unit;
Described measurement construction module comprises surveying and locating unit, unit is checked in setting-out.
In slurry-water balance type jacking construction system of the present utility model, described construction of working shaft module comprises foundation ditch surveying and locating unit, excavation of foundation pit unit, cushion construction unit, steel bar meter and colligation unit, model sheetinstallat unit, builds concrete unit, maintenance and form removal unit, well sinking unit, bottom sealing construction cell.
In slurry-water balance type jacking construction system of the present utility model, described foundation ditch surveying and locating unit, excavation of foundation pit unit, cushion construction unit, steel bar meter and colligation unit, model sheetinstallat unit, build concrete unit, maintenance and form removal unit, well sinking unit be connected respectively successively with bottom sealing construction cell.
The beneficial effects of the utility model: during native system construction, required total jacking power is less, the long distance jacking especially in stickiness soil layer, and can long distance delivery earth, uninterrupted in jack-in process, construction is fast, and the duration is short.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present utility model.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of slurry-water balance type jacking construction system, it comprises open caisson equipment installation module, measures construction module, construction of working shaft module, ground installation installation module, slip casting module, spoil disposal module, measurement and correction module and interface processing module.
Described slip casting module, thixotropic slurry drag reduction is the drag reduction mode that long-distance pipe-jacking construction often adopts, and can effectively reduce resistance, lengthen apex distance to greatest extent.Be provided with thixotropic slurry injected hole at head afterbody, often save concrete reinforced pipe and establish injected hole, slip casting at any time during jacking.
Described spoil disposal module, the full automatic mud-water conveying mode of unearthed employing of slurry-water balance type push pipe, formed mud by the soil excavated by the stirring in cabin and muddy water, then extracted out by slurry pump, high speed spoil disposal is unearthed.
Described measurement and correction module, during initial jacking, every 300mm measures once, and keeps a record.Can use total station survey at any time at active well during normal jacking, every jacking 0.5m does once record.When meeting correction, every 300mm does once record.Measuring recording draws elevation, center curve figure respectively, grasps head jacking trend at any time.
Correction in jack-in process is the key of push pipe operation quality quality, if misoperation, may cause that top power rises sharply, interface tube is damaged, may cause pipeline cannot jacking time serious, cause serious safety, Accident due to quality and heavy economic losses, especially jacking in layer of sand, pipeline is very easily because muddy water excessively washes away and causes push-bench nose drop, therefore, the correction for jack-in process seems particularly important.
Before head and head fastening means pipe are appeared, even if there is center line and height variation, also do not rectify a deviation as far as possible, because now rectify a deviation, head connecting tube is still positioned on guide rail, does not have rectifying effect; After head connecting tube is appeared, if when elevation center line is within ± 2cm, can not rectify a deviation, when elevation or center line exceed more than reference value 2cm, rectify a deviation according to the light spot position variation tendency in monitor unit, an advancement amount must be had, correction is followed " first entangle elevation; after entangle center line, small angle is rectified a deviation continuously " principle, the overhang of correction oil cylinder once must not too large (being advisable to be no more than 2cm); When light spot position has reverse mobile trend or travelling speed to slow down, correction oil cylinder can be retracted, stop correction, during correction, also should observe pitch angle and angle of rotation change in monitor unit, as reference numerical value, pitch angle and angle of rotation maximum deviation must not exceed original value 3 °.
Described interface processing module, concrete mouth of pipe place does mouth of pipe process after push pipe completes.Interface is filled out and is broken asbestos cement, first clears up seam, then use the moistening gap of clear water before joint filling, by regulation requirement preparation, fill out and break asbestos cement, the complete timely maintenance of joint filling, in steel plate, piston ring and inner tube wall space asbestos cement fill up and beat in fact, and in steel plate, piston ring exposed parts painting heated bitumen is anticorrosion.Pipe inner joint place surface uniform smears polysulfide sealing compound.
Described open caisson equipment installation module, measurement construction module, construction of working shaft module, ground installation installation module, slip casting module, spoil disposal module, measurement and correction module are connected respectively successively with interface processing module;
Described open caisson equipment installation module comprises guide rails assembling unit, rear parados installation unit, back seat jack installation unit, hole sealing installation unit and head installation unit;
The implementation step of described rear parados installation unit comprises:
(1) after assembling type, parados adopts the assemblings such as the lumps of wood, shaped steel and steel plate, and the rear parados after assembling should have enough strength and stiffness;
(2) after assembling type the bottom of parados at the bottom of working pit below 500mm, thus Shi Hou jack center of effort is highly not less than 1/3 of back lumps of wood height, such can make Point of Strength and wall after be consistent by the Resultant force of breaking ground, contribute to reducing the inclination of back.
The implementation step of described guide rails assembling unit comprises:
(1) during guide rails assembling and active well base plate pre-embedded steel slab weld, and with type steel support or with coagulation fortifield village jail.To first check pipeline center position before guide rails assembling, guarantee that the elevation of guide rail, axial location are accurate.
(2) guide rail must meet the requirement of center line, elevation, and after mounting with push pipe before, its axial location, elevation etc. must carry out an acceptance inspection.
(3) guide rail end can not be too far away apart from work wall, and generally should control at about 500mm, during guide rails assembling, preset slot height is advisable with 100 ~ 150mm.
The implementation step of described back seat jack installation unit comprises:
(1) jack must meet center line and level requirement, and will be that axisymmetric is arranged with pipe centerline.
(2) jack is fixed on support, and its central point of making a concerted effort is in the duct on heart line.
(3) position of jack should be positioned at 1/3 ~ 1/4 place of pipeline perpendicular diameter, make jack make a concerted effort position and jacking drag position on the same axis, avoid produce top couple, make pipeline generation vertical error.
Described hole sealing installation unit, for mud during guarantee push-bench export & import and underground water are not gushed out from push-bench outside, need install water stop device for opening in jacking direction.Water stop device for opening is arranged on active well and received well along on the sidewall hole to be provided in pipeline direction, and the diameter of hole to be provided should be slightly larger than push-bench external diameter, and it is by pre-embedded bolt, steel pressure ring and rubber ring composition.
Described head installation unit, head entirety winches on foundation ditch guide rail, and levelling head, connects robot control system(RCS), checks whether actual numerical value conforms to Computer display numerical value.
Described measurement construction module comprises surveying and locating unit, unit is checked in setting-out.
In slurry-water balance type jacking construction system of the present utility model, described construction of working shaft module comprises foundation ditch surveying and locating unit, excavation of foundation pit unit, cushion construction unit, steel bar meter and colligation unit, model sheetinstallat unit, builds concrete unit, maintenance and form removal unit, well sinking unit, bottom sealing construction cell.
In slurry-water balance type jacking construction system of the present utility model, described foundation ditch surveying and locating unit, excavation of foundation pit unit, cushion construction unit, steel bar meter and colligation unit, model sheetinstallat unit, build concrete unit, maintenance and form removal unit, well sinking unit be connected respectively successively with bottom sealing construction cell.
Wherein, 1, foundation ditch surveying and locating unit
According to design drawing, jacking hole excavation of foundation pit adopts 1:0.33 to put slope excavation about 2m.Then backbreak after 40cm and start foundation ditch leveling compacting.Center stake, in length and breadth axial line control stake and excavation of foundation pit sideline is made according to the centre coordinate of active well.After construction lofting terminates, must through supervising engineer check accurate after can go into operation.
2, excavation of foundation pit unit
After the excavation of foundation pit sideline of supervising engineer's accreditation is determined, the construction of shoveling operation can be carried out.The power shovel that shoveling employing is 1 cubic metre, and operate with hand fit.The mud scum of foundation ditch bottom surface should be removed clean and keep smooth and dry.
3, cushion construction unit
Bed course adopts rubble to pave, cushion thickness 100mm.Rubble surface use leveling instrument is smoothed, and makes it surface and is roughly maintained at the same horizontal plane.
4, steel bar meter and colligation unit
Must note the reasonable employment of working machine when screwing steel bars, strict and carry out constructing, avoiding occurring that machinery bites according to working specification, security incident of getting an electric shock etc. occurs.Each power supply will turning off all machinery before leaving offices.
During reinforcing bar binding, in strict accordance with the position cloth muscle indicated, check the number into position.In reinforcing bar binding process, as reinforcement location conflict with preformed hole, built-in pipe position time, according to design drawing require construction.
5, model sheetinstallat unit
Colligation is firm first should to check the protective layer cushion block of reinforcing bar before formwork erection, service sleeve and preburied iron part position whether accurate.Should conscientiously check axis before formwork, whether absolute altitude meets designing requirement.
6, concrete unit is built
Before building, basal plane is cleaned out, check after approval through supervising engineer, can concreting be carried out.When building body of wall concrete, adopt poker vibrator.In concrete vibrating process, the anxious insertion of vibrating spear, slow extracting remedy in order to excellent hole, and collision free embedded part, built-in pipe.
7, maintenance and form removal unit
Should maintenance in time after casting and compacting of concrete completes, maintenance process adopts woven straw to cover.Concrete surface non-whitening should be guaranteed, at least maintenance more than seven days during maintenance.Striking time controls to carry out in 6 ~ 7 days after casting and compacting of concrete, and too early or excessively the form removal in evening is all disadvantageous to concrete maintenance.
8, well sinking unit
After open caisson manufacture completes form removal, after concrete strength reaches 70% of design strength, sinking construction can be arranged.The sinking stage should measure once each hour, measures content and comprises the absolute altitude of sword pin and the displacement of axis.Generally, per tour is at least measured once.The correction of open caisson should according to measuring form with partially with entangling.The method of correction is generally carried out according to the principle of " sink is dug less, and few sinking is dug more ".
9, bottom sealing construction cell
Back cover generally spreads the thick cobble of one deck 150 ~ 500mm or macadam, water one deck concrete cushion thereon again, conscientiously fill out sternly in sword underfooting, vibration compacting, to ensure the last stable of open caisson, after reaching 50% intensity, at bed course upper berth coil waterproof layer, tie up reinforcing bar, two ends are stretched in people's sword pin or groove, build underplate concrete.
Compared with prior art, the beneficial effects of the utility model: during native system construction, required total jacking power is less, the long distance jacking especially in stickiness soil layer, and can long distance delivery earth, uninterrupted in jack-in process, construction is fast, and the duration is short.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a slurry-water balance type jacking construction system, it is characterized in that, comprise open caisson equipment installation module, measure construction module, construction of working shaft module, ground installation installation module, slip casting module, spoil disposal module, measurement and correction module and interface processing module;
Described open caisson equipment installation module, measurement construction module, construction of working shaft module, ground installation installation module, slip casting module, spoil disposal module, measurement and correction module are connected respectively successively with interface processing module;
Described open caisson equipment installation module comprises guide rails assembling unit, rear parados installation unit, back seat jack installation unit, hole sealing installation unit and head installation unit;
Described measurement construction module comprises surveying and locating unit, unit is checked in setting-out.
2. slurry-water balance type jacking construction system according to claim 1, it is characterized in that, described construction of working shaft module comprises foundation ditch surveying and locating unit, excavation of foundation pit unit, cushion construction unit, steel bar meter and colligation unit, model sheetinstallat unit, builds concrete unit, maintenance and form removal unit, well sinking unit, bottom sealing construction cell.
3. slurry-water balance type jacking construction system according to claim 2, it is characterized in that, described foundation ditch surveying and locating unit, excavation of foundation pit unit, cushion construction unit, steel bar meter and colligation unit, model sheetinstallat unit, build concrete unit, maintenance and form removal unit, well sinking unit be connected respectively successively with bottom sealing construction cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194108.9U CN204533812U (en) | 2015-03-31 | 2015-03-31 | A kind of slurry-water balance type jacking construction system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520194108.9U CN204533812U (en) | 2015-03-31 | 2015-03-31 | A kind of slurry-water balance type jacking construction system |
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| CN204533812U true CN204533812U (en) | 2015-08-05 |
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| CN201520194108.9U Expired - Fee Related CN204533812U (en) | 2015-03-31 | 2015-03-31 | A kind of slurry-water balance type jacking construction system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257299A (en) * | 2015-11-04 | 2016-01-20 | 中铁十八局集团有限公司 | Slurry-balanced pipe jacking machine receiving device and technology under high water condition |
| CN106369223A (en) * | 2016-10-31 | 2017-02-01 | 中铁二十局集团第五工程有限公司 | Pipe-jacking construction method for mealy sand stratum |
| CN107269288A (en) * | 2017-08-11 | 2017-10-20 | 曹丽召 | The non-explosion water mill of hard stone section push pipe bores two-way drilling construction method |
| CN110761325A (en) * | 2019-10-25 | 2020-02-07 | 中铁第四勘察设计院集团有限公司 | Automatic control system and method for mud-water balance open caisson vehicle station in soft soil area |
-
2015
- 2015-03-31 CN CN201520194108.9U patent/CN204533812U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257299A (en) * | 2015-11-04 | 2016-01-20 | 中铁十八局集团有限公司 | Slurry-balanced pipe jacking machine receiving device and technology under high water condition |
| CN105257299B (en) * | 2015-11-04 | 2017-05-17 | 中铁十八局集团有限公司 | Slurry-balanced pipe jacking machine receiving device and technology under high water condition |
| CN106369223A (en) * | 2016-10-31 | 2017-02-01 | 中铁二十局集团第五工程有限公司 | Pipe-jacking construction method for mealy sand stratum |
| CN107269288A (en) * | 2017-08-11 | 2017-10-20 | 曹丽召 | The non-explosion water mill of hard stone section push pipe bores two-way drilling construction method |
| CN110761325A (en) * | 2019-10-25 | 2020-02-07 | 中铁第四勘察设计院集团有限公司 | Automatic control system and method for mud-water balance open caisson vehicle station in soft soil area |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20180331 |
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| CF01 | Termination of patent right due to non-payment of annual fee |