CN106015733B - A kind of straight top steel pipeline jacking construction method - Google Patents
A kind of straight top steel pipeline jacking construction method Download PDFInfo
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- CN106015733B CN106015733B CN201610626350.8A CN201610626350A CN106015733B CN 106015733 B CN106015733 B CN 106015733B CN 201610626350 A CN201610626350 A CN 201610626350A CN 106015733 B CN106015733 B CN 106015733B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 114
- 239000010959 steel Substances 0.000 title claims abstract description 114
- 238000010276 construction Methods 0.000 title claims abstract description 43
- 238000005260 corrosion Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 8
- 230000035515 penetration Effects 0.000 claims description 8
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 239000011440 grout Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 21
- 238000007569 slipcasting Methods 0.000 abstract description 19
- 239000011248 coating agent Substances 0.000 abstract description 11
- 238000000576 coating method Methods 0.000 abstract description 11
- 230000003628 erosive effect Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003027 ear inner Anatomy 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L1/038—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being made in situ
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides a kind of straight top steel pipeline jacking construction method, it is related to pipeline engineering technical field.This directly pushes up steel pipeline jacking construction method, sets through hole in the side wall of grouting pipe, and set mud guard in the outside of the through hole；The grouting pipe is fixedly mounted on the lateral wall of straight top steel pipe, using the anti-drag mud sprayed from the through hole, aids in straight top steel pipe jacking forward in the earthwork.The straight top steel pipeline jacking construction method of the present invention, pipe of concrete is instead of using straight top steel pipe, save space and material cost, since grouting pipe is arranged on the lateral wall of straight top steel pipe, avoid the problem that perforate causes erosion resistant coating to be damaged on the tube wall for directly pushing up steel pipe, prevented slip casting hole plug and slip casting direction flings the earthwork and causes slip casting effect low.
Description
Technical field
The present invention relates to pipeline engineering technical field, more particularly to a kind of straight top steel pipeline jacking construction method.
Background technology
In municipal water supply, draining, middle water, gas pipeline engineering, pipeline jacking is one of work more crucial in engineering
Sequence, the process directly affect installation effect, installation space and service life of the pipeline in push pipe well.
In traditional pipe jacking construction engineering, instrument of the pipe of concrete as jacking is usually selected, by concrete tube top
After entering the earthwork, steel pipe is installed then at the inner cavity of pipe of concrete.Although traditional method can avoid the anti-of steel pipe end surface and side wall
Rotten layer is damaged, but must set must be bigger than the diameter of steel pipe for the diameter of pipe of concrete, so not only wasting space, at the same time
Construction work also add the expenditure of pipe of concrete material.
To solve the above-mentioned problems, improved pipe jacking construction engineering employs straight top steel pipe, utilizes straight top steel pipe
The jacking directly in the earthwork.Although the method avoids using pipe of concrete, reduce cost, save space.But due to straight
Need to provide anti-drag mud when pushing up steel pipe jacking, therefore also require to open up injected hole in directly top steel pipe side wall, and in directly top steel pipe
Side wall sets injected hole, on the one hand destroys straight top steel pipe anticorrosive layer, is blocked even if welding injected hole after engineering, straight top
The overall structure of steel pipe is also destroyed.On the other hand, also easily blocked there are injected hole and slip casting direction flings straight top steel pipe
The problem of earthwork of side causes slip casting effect low.
The content of the invention
It is an object of the invention to provide a kind of straight top steel pipeline jacking construction method, to solve slip casting in the prior art
Hole is opened in straight top steel pipe side wall, is damaged there are erosion resistant coating, injected hole easily blocks, and slip casting direction is flung by straight top steel pipe
The problem of earthwork of side causes slip casting effect low.
To achieve these goals, the present invention uses following technical scheme：
A kind of straight top steel pipeline jacking construction method provided by the invention, through hole is set in the side wall of grouting pipe, and
In the outside of the through hole, mud guard is set；The grouting pipe is fixedly mounted on the lateral wall of straight top steel pipe, using from
The anti-drag mud that the through hole sprays, aids in straight top steel pipe jacking forward in the earthwork.
Further, the grouting pipe is fixedly mounted on the straight top steel pipe by anchor ear.The technology of the technical solution
Effect is：On the one hand, since straight top steel pipe front end directly contacts the earthwork, it is arranged on the erosion resistant coating on the outside of straight top steel pipe and easily exists
Tear, stripping in jacking and friction, and anchor ear can prevent the erosion resistant coating of directly top steel pipe to be damaged；On the other hand, grouting pipe welds
Be connected on anchor ear, and anchor ear is connected on straight top steel pipe, avoid grouting pipe directly with structure caused by straight top steel-pipe welding
Defect.
Further, installing plate is set on the anchor ear, the grouting pipe is fixed and is welded in the installing plate.The skill
Art scheme has technical effect that：Installing plate plays the role of auxiliary connection, beneficial to being welded and fixed for grouting pipe and anchor ear.And
And beneficial to miscellaneous parts such as fixed penetration pipes.
Further, the axis of two axis and the grouting pipe is set between the grouting pipe and the installing plate
Parallel connection reinforcing bar, the installing plate is fixedly welded on by two connection reinforcing bars by the grouting pipe.The technology
Scheme has technical effect that：Since installing plate is slab construction, and grouting pipe is tubular structure, in installing plate and Grouting Pipe
The axis connection reinforcing bar parallel with the axis of grouting pipe has been welded between road, the intensity of welding can be greatly reinforced.
Further, before the anchor ear is installed, anticorrosive construction is carried out to the interface position of the straight top steel pipe.The technical solution
Have technical effect that：The effect of anticorrosive construction, which is that, to be prevented from directly pushing up steel pipe corrosion, is increased its durability and is extended use
Service life.
Further, before the anchor ear is installed, corrosion protective covering is set in the inner ring surface of the anchor ear.The skill of the technical solution
Art effect is：Since the lateral wall of the inner ring surface and straight top steel pipe of anchor ear fits closely, therefore use the anti-corrosion of anchor ear inner ring surface
The corrosion-inhibiting coating duplicate protection of protective layer and straight top steel pipe lateral wall, can greatly reduce the abrasion of straight top steel pipe and anchor ear, prolong
Both long service life.
Further, feed pipe for mortar is connected in the grouting pipe rear end, for connecting outside the grouting pipe and push pipe well
Pulp storage tank.The technical solution has technical effect that：Feed pipe for mortar is located at the rear side of grouting pipe, less directly to contact in push pipe well
Mud and the earthwork, it is necessary to the freedom of movement of bigger and do not require with directly top steel pipe be directly welded, in favor of connect Grouting Pipe
Road and the pulp storage tank outside push pipe well, mud is introduced in push pipe well.
Further, after the grouting pipe is installed, unidirectional grout valve is installed on the grouting pipe.The technical solution
Have technical effect that：Unidirectional grout valve only allows anti-drag mud not allow from grouting pipe to straight top steel pipe front discharge
Mud improves slip casting effect externally to recharge in grouting pipe and blocking.
Further, the grouting pipe is fixed at the straight top steel pipe and then is weldingly fixed on penetration pipe
On the anchor ear.The technical solution has technical effect that：The mounting structure of penetration pipe is similar with grouting pipe, its role is to
Power cord and the physical connection line of measuring instrument are laid, avoids circuit from being damaged or make moist, ensures being smoothed out for push pipe work.
Further, one tool pipe is set in the front end of the straight top steel pipe, the through hole and the mud guard are arranged at
The tool pipe.The technical solution has technical effect that：One tube coupling of the i.e. straight top steel pipe front end of tool pipe, the direct and earthwork
Contact and jacking, and formed and be flexibly connected with other tube couplings of rear end, can make directly to push up steel pipe and bear larger pressure.
The beneficial effects of the invention are as follows：Pipe of concrete is instead of using straight top steel pipe, saves space and material cost, by
In grouting pipe being arranged on the lateral wall of straight top steel pipe, avoid directly on the tube wall of top steel pipe perforate cause erosion resistant coating by
Damage, prevented slip casting hole plug and slip casting direction flings the problem of earthwork causes slip casting effect low.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the specific embodiment of the invention, embodiment will be described below
Needed in attached drawing be briefly described.It should be evident that drawings in the following description are some implementations of the present invention
Mode, for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the Construction State schematic diagram of straight top steel pipeline jacking construction method provided by the invention；
Fig. 2 be in Fig. 1 S-S to sectional view；
Fig. 3 is the structure diagram for the tool pipe that straight top steel pipeline jacking construction method provided by the invention uses；
Fig. 4 is the construction process figure of straight top steel pipeline jacking construction method provided by the invention.
Reference numeral：
1- cubic metres of earth；2- directly pushes up steel pipe；3- anchor ears；
4- grouting pipes；5- through holes；6- mud guards；
7- installing plates；8- connection reinforcing bars；9- feed pipe for mortar；
10- penetration pipes；11- tool pipes.
Embodiment
Technical scheme is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Easy to describe the present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
A kind of straight top steel pipeline jacking construction method is present embodiments provided, wherein：Fig. 1 is straight top provided by the invention
The Construction State schematic diagram of steel pipeline jacking construction method；Fig. 2 be in Fig. 1 S-S to sectional view；Fig. 3 is provided by the invention
The structure diagram for the tool pipe that straight top steel pipeline jacking construction method uses；Fig. 4 is straight top steel pipe provided by the invention
The construction process figure of road jacking construction method.As shown in figures 1-4, through hole 5 is set in the side wall of grouting pipe 4, and in described logical
The outside in hole 5 sets mud guard 6；The grouting pipe 4 is fixedly mounted on the lateral wall of straight top steel pipe 2, using from described
The anti-drag mud that through hole 5 sprays, aids in the straight top jacking forward in the earthwork 1 of steel pipe 2.
In traditional pipe jacking construction engineering, instrument of the pipe of concrete as jacking is usually selected, by concrete tube top
After entering the earthwork 1, steel pipe is installed then at the inner cavity of pipe of concrete.Although traditional method can avoid the anti-of steel pipe end surface and side wall
Rotten layer is damaged, but must set must be bigger than the diameter of steel pipe for the diameter of pipe of concrete, so not only wasting space, at the same time
Construction work also add the expenditure of pipe of concrete material.To solve the above-mentioned problems, improved pipe jacking construction engineering
Straight top steel pipe 2 is employed, utilizes the straight top directly jacking in the earthwork 1 of steel pipe 2.Although the method avoids using pipe of concrete, drop
Low cost, saves space.But due to needing to provide anti-drag mud during straight top 2 jacking of steel pipe, therefore also require in directly top steel
2 side wall of pipe opens up injected hole, and the side wall in directly top steel pipe 2 sets injected hole, on the one hand destroys straight top 2 erosion resistant coating of steel pipe,
Blocked even if welding injected hole after engineering, the straight overall structure for pushing up steel pipe 2 is also destroyed.On the other hand, also exist
Injected hole easily blocks and slip casting direction flings the problem of straight earthwork 1 for pushing up 2 side of steel pipe causes slip casting effect low.
Straight top steel pipeline jacking construction method in the present embodiment, instead of pipe of concrete using straight top steel pipe 2, saves
Space and material cost, since grouting pipe 4 is arranged on the lateral wall of straight top steel pipe 2, avoid the pipe in directly top steel pipe 2
Perforate causes erosion resistant coating to be damaged, has prevented slip casting hole plug and slip casting direction flings the earthwork 1 and causes slip casting effect low on wall
Problem.
In the alternative of the present embodiment, as shown in Figure 1, 2, further, grouting pipe 4 is fixed by anchor ear 3 pacifies
On straight top steel pipe 2.Wherein, grouting pipe 4 is welded on the lateral wall of straight top steel pipe 2 in which can also directly fit.In this reality
Apply in example, on the one hand since straight top 2 front end of steel pipe directly contacts the earthwork 1, the erosion resistant coating for being arranged on straight 2 outside of top steel pipe easily exists
Tear, stripping in jacking and friction, and anchor ear 3 can prevent the erosion resistant coating of directly top steel pipe 2 to be damaged；Another aspect grouting pipe 4
It is welded on anchor ear 3, and anchor ear 3 is connected on straight top steel pipe 2, avoid grouting pipe 4 directly causes with straight top steel pipe 2 welding
Fault of construction.
In the alternative of the present embodiment, as shown in Figure 1, 2, further, installing plate 7 is set on anchor ear 3, will be noted
Slurry pipeline 4, which is fixed, is welded in installing plate 7.Wherein, grouting pipe 4 can also be directly welded on anchor ear 3.In the present embodiment,
Installing plate 7 plays the role of auxiliary connection, beneficial to being welded and fixed for grouting pipe 4 and anchor ear 3.Also, beneficial to fixed penetration pipe
10 grade miscellaneous parts.
In the alternative of the present embodiment, as shown in Fig. 2, further, being set between grouting pipe 4 and installing plate 7
Two axis connection reinforcing bar 8 parallel with the axis of grouting pipe 4 is put, is welded grouting pipe 4 admittedly by two connection reinforcing bars 8
Due to installing plate 7.In the present embodiment, since installing plate 7 is slab construction, and grouting pipe 4 is tubular structure, in installing plate
The axis connection reinforcing bar 8 parallel with the axis of grouting pipe 4 has been welded between 7 and grouting pipe 4, welding can be greatly reinforced
Intensity.
In the alternative of the present embodiment, as shown in Figure 1, before installation anchor ear 3, to the interface position of straight top steel pipe 2 into
Row anticorrosive construction.In the present embodiment, the effect of anticorrosive construction, which is that, prevents from directly pushing up 2 corrosion of steel pipe, and it is durable to increase its
Spend, prolong the service life.
In the alternative of the present embodiment, as shown in Figure 1, further, before installing anchor ear 3, in the inner ring surface of anchor ear 3
Corrosion protective covering is set.In the present embodiment, since the lateral wall of the inner ring surface and straight top steel pipe 2 of anchor ear 3 fits closely, therefore adopt
With the corrosion protective covering of 3 inner ring surface of anchor ear and the corrosion-inhibiting coating duplicate protection of straight top 2 lateral wall of steel pipe, straight top can be greatly reduced
The abrasion of steel pipe 2 and anchor ear 3, extends both service life.
In the alternative of the present embodiment, as shown in Figure 1, feed pipe for mortar 9 is connected in 4 rear end of grouting pipe, for connecting
Grouting pipe 4 and the pulp storage tank outside push pipe well.In the present embodiment, feed pipe for mortar 9 is located at the rear side of grouting pipe 4, less direct
Contact push pipe well in mud and the earthwork 1, it is necessary to the freedom of movement of bigger and do not require with directly push up steel pipe 2 be directly welded, with
Beneficial to connection grouting pipe 4 and the pulp storage tank outside push pipe well, mud is introduced in push pipe well.
In the alternative of the present embodiment, as shown in Figure 1, after installation grouting pipe 4, installed on grouting pipe 4 single
(not marked) to slip casting valve, unidirectional grout valve only allows anti-drag mud from grouting pipe 4 to straight 2 front discharge of top steel pipe,
Mud is not allowed to improve slip casting effect externally to recharge and blocking in grouting pipe 4.
In the alternative of the present embodiment, as shown in Fig. 2, further, grouting pipe 4 is fixed at straight top steel
Pipe 2 and then penetration pipe 10 is weldingly fixed on anchor ear 3.In the present embodiment, the mounting structure and Grouting Pipe of penetration pipe 10
Road 4 is similar, its role is to lay the physical connection line of power cord and measuring instrument, avoids circuit from being damaged or make moist, and ensures
Push pipe work be smoothed out and long-time service of the pipeline in the earthwork 1.
In the alternative of the present embodiment, as shown in Figure 1,3, further, one is set in the front end of directly top steel pipe 2
Tool pipe 11, through hole 5 and mud guard 6 are arranged on tool pipe 11.In the present embodiment, i.e. straight top 2 front end of steel pipe of tool pipe 11
A tube coupling, directly and the contact of the earthwork 1 and jacking, and flexible connection is formed with other tube couplings of rear end, can make directly to push up steel pipe 2
Bear larger pressure.
The content for needing to illustrate has at following 2 points：
1st, the top power of steel pipe 2 is directly pushed up：
Due to introducing anchor ear 3 and the grade additional structure of grouting pipe 4, the theoretical calculation method of the straight top power for pushing up steel pipe 2 is such as
Under：
In above-mentioned formula：
Total top power (kN) of P --- calculating；
γ --- the force density (kN/m3) of soil layer residing for straight top steel pipe 2；
D1 --- the outside diameter (m) of straight top steel pipe 2；
H --- the thickness (m) of straight top 2 top above overlying soil of steel pipe；
φ --- the internal friction angle of soil layer residing for straight top steel pipe 2；
ω --- the dead weight (kN/m) of straight top 2 unit length of steel pipe；
L --- the calculating jacking length (m) of straight top steel pipe 2；
F --- it is straight to push up 2 surface of steel pipe and the friction coefficient around it between soil layer during jacking；
Ps --- during jacking, the straight head resistance (KN) for pushing up 2 development machine of steel pipe.
Consider that the empirical formula after slurry damper effect is：
F=π DLf
F --- jacking pipeline frictional resistance (KN)；
D --- outer diameter tube (m)；
L --- push pipe duct length (m)；
The average friction force of f --- unit area tube wall and soil.
2nd, the back seat counter-force of 2 reacting wall of steel pipe is directly pushed up：
In construction, it is desirable to which reacting wall must keep stable, once reacting wall is destroyed, jacking construction will pause.
The design of reacting wall will be by calculating in detail, and prediction of its significance level no less than jacking power calculates.
The minimum intensity of reacting wall should ensure that not to be destroyed under the action of jacking power is designed, and leaves larger safety
Degree.It is required that the compression rebound amount of itself is minimum, in favor of giving full play to the jacking efficiency of main top work station.Designing and pacifying
When filling reacting wall, it should be made to meet following require：Have sufficient intensity, to have enough rigidity, reacting wall surface is straight,
Material is uniform, simple in structure is convenient to mount and dismount.
Wherein, push pipe back seat counter-force computational methods are as follows：
In formula：
The counter-force (kN) of R --- gross thrust；
α --- coefficient, takes α=1.5~2.5；
The width (m) of B --- reacting wall；
γ --- native unit weight (kN/m3)；
The height (m) of H --- reacting wall；
Kp--- passive coefficient of earth pressure；
C --- native cohesive force (kPa)；
Height (m) of h --- the ground to the soil body at the top of reacting wall.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution described in foregoing embodiments, either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (7)
- A kind of 1. straight top steel pipeline jacking construction method, it is characterised in that in the side wall of grouting pipe, through hole is set, and in institute The outside for stating through hole sets mud guard；The grouting pipe is fixedly mounted on the lateral wall of straight top steel pipe, using from described The anti-drag mud that through hole sprays, aids in straight top steel pipe jacking forward in the earthwork；The grouting pipe is fixedly mounted on the straight top steel pipe by anchor ear；Installing plate is set on the anchor ear, the grouting pipe is fixed and is welded in the installing plate；The connection parallel with the axis of the grouting pipe of two axis is set between the grouting pipe and the installing plate Reinforcing bar, the installing plate is fixedly welded on by two connection reinforcing bars by the grouting pipe.
- 2. straight top steel pipeline jacking construction method according to claim 1, it is characterised in that before the anchor ear is installed, Anticorrosive construction is carried out to the interface position of the straight top steel pipe.
- 3. straight top steel pipeline jacking construction method according to claim 1, it is characterised in that before the anchor ear is installed, In the inner ring surface of the anchor ear, corrosion protective covering is set.
- 4. straight top steel pipeline jacking construction method according to claim 1, it is characterised in that after the grouting pipe End connection feed pipe for mortar, for connecting the grouting pipe and the pulp storage tank outside push pipe well.
- 5. straight top steel pipeline jacking construction method according to claim 1, it is characterised in that install the grouting pipe Afterwards, unidirectional grout valve is installed on the grouting pipe.
- 6. straight top steel pipeline jacking construction method according to claim 1, it is characterised in that consolidate the grouting pipe Surely it is arranged on the straight top steel pipe and then penetration pipe is weldingly fixed on the anchor ear.
- 7. straight top steel pipeline jacking construction method according to claim 1, it is characterised in that in the straight top steel pipe Front end sets a tool pipe, and the through hole and the mud guard are arranged at the tool pipe.
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| CN110864162B (en) * | 2019-11-05 | 2021-11-02 | 国网浙江省电力有限公司宁波市镇海区供电公司 | Construction process of argillaceous sandstone geological pipe jacking |
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| CN103133766A (en) * | 2011-11-29 | 2013-06-05 | 上海市基础工程有限公司 | Over-length heavy caliber steel jacking pipe mud resistance reducing system |
| CN103644369A (en) * | 2013-12-24 | 2014-03-19 | 中铁上海工程局有限公司 | Automatic pressure feeding device and method for lubricating and drag-reduction slurry for push pipes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3232501B2 (en) * | 1996-03-15 | 2001-11-26 | 日本鋼管工事株式会社 | Double pipe buried method |
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|---|---|---|---|---|
| CN201763348U (en) * | 2010-09-17 | 2011-03-16 | 中铁十九局集团轨道交通工程有限公司 | Slip casting tube |
| CN103133766A (en) * | 2011-11-29 | 2013-06-05 | 上海市基础工程有限公司 | Over-length heavy caliber steel jacking pipe mud resistance reducing system |
| CN102748033A (en) * | 2012-07-23 | 2012-10-24 | 中铁十六局集团北京工程有限公司 | Filling mechanism for ultra-long jacking-pipe resistance-reducing slurry bin |
| CN102777189A (en) * | 2012-08-09 | 2012-11-14 | 中铁十六局集团北京工程有限公司 | Intermediate-jacking-station-free jacking construction device of ultra-long pipe roof and method thereof |
| CN103644369A (en) * | 2013-12-24 | 2014-03-19 | 中铁上海工程局有限公司 | Automatic pressure feeding device and method for lubricating and drag-reduction slurry for push pipes |
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| Publication number | Publication date |
|---|---|
| CN106015733A (en) | 2016-10-12 |
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Address after: Room 301-118, 3rd floor, No. 64, yongdingmenwai street, Dongcheng District, Beijing 100075 Patentee after: Beijing Zhengping Construction Group Co.,Ltd. Patentee after: Yang Chunli Address before: Room 301-118, 3rd floor, No. 64, yongdingmenwai street, Dongcheng District, Beijing 100075 Patentee before: BEIJING ZHENGPING CONSTRUCTION INVESTMENT GROUP Co.,Ltd. Patentee before: Yang Chunli |
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