CN108729925A - Kidney ellipsoid push-bench and its construction method - Google Patents
Kidney ellipsoid push-bench and its construction method Download PDFInfo
- Publication number
- CN108729925A CN108729925A CN201810555682.0A CN201810555682A CN108729925A CN 108729925 A CN108729925 A CN 108729925A CN 201810555682 A CN201810555682 A CN 201810555682A CN 108729925 A CN108729925 A CN 108729925A
- Authority
- CN
- China
- Prior art keywords
- push
- bench
- kidney ellipsoid
- pipeline
- procapsid
- 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.)
- Pending
Links
- 210000003734 kidney Anatomy 0.000 title claims abstract description 58
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 239000002002 slurry Substances 0.000 claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 32
- 108090000565 Capsid Proteins Proteins 0.000 claims abstract description 31
- 238000012937 correction Methods 0.000 claims abstract description 20
- 244000309464 bull Species 0.000 claims abstract description 16
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000005553 drilling Methods 0.000 claims abstract description 6
- 239000000314 lubricant Substances 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000002349 favourable effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000009974 thixotropic effect Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 241001347978 Major minor Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of kidney ellipsoid push-bench and its construction methods, include eccentric cutter disc groups, procapsid, correction oil cylinder, spiral conveyer, slurry transportation system and back casing；Kidney ellipsoid push-bench procapsid and back casing are kidney ellipsoid by the front-back of flanged joint and procapsid and back casing；Eccentric cutter disc groups are fixed on by bolt, nut on procapsid；Correction oil cylinder is connect by connecting rod with procapsid；Helical conveyer motor spindle is fixed on procapsid bottom by card slot；The bias cutter disc groups include eccentric cutterhead, bull stick and drilling machine；Construction method disclosed by the invention includes digging active well and received well；Equipment is installed；Each position of sinking kidney ellipsoid push-bench；Kidney ellipsoid push-bench is installed in well；Sinking pipeline；Sink top iron；It is laid with slurry pipeline and circuit-line；Normal jacking；Each component of dismounting kidney ellipsoid push-bench simultaneously hangs out received well according to the sequence opposite with installation；Inject thixotropic slurry；The technical solution that the present invention takes can be applied to the pipe-jacking project of the special shapes such as kidney ellipsoid, have higher space availability ratio and stock-removing efficiency.
Description
Technical field
The present invention relates to technical field of pipeline construction, and in particular to a kind of kidney ellipsoid push-bench and its construction method.
Background technology
Jacking construction is a kind of piping laying construction technology do not excavated or excavated less.Construction by pipeline jacking method is exactly to work
The top power generated by means of jacking device in hole, overcomes the frictional force of pipeline and surrounding soil, by pipeline by the gradient top of design
In burying, and the earthwork is transported.Existing push-bench is mostly round or rectangle, and round or rectangular pipe jacking machine is difficult to be suitable for mesh
The more and more various development trend of sinciput tube shape；And round or rectangular top pipe often only has single cutterhead, to the profit in space
It is low with rate, lead to the problem that stock-removing efficiency is relatively low.
Invention content
The purpose of the present invention is to provide a kind of kidney ellipsoid push-bench and its construction methods, solve round or rectangular pipe jacking machine
It is difficult to the problems such as jacking construction suitable for current various shapes is total to journey and single cutterhead low space utilization, stock-removing efficiency is low.
In order to solve the above technical problems, the present invention uses following technical scheme：A kind of kidney ellipsoid push-bench includes inclined
Heart cutter disc groups, procapsid, correction oil cylinder, spiral conveyer, slurry transportation system and back casing；The forward and backward shell of push-bench
Front-back by flanged joint and front and rear housings is kidney ellipsoid；Before the bias cutter disc groups are fixed on by bolt, nut
On shell；The correction oil cylinder is connect by connecting rod with procapsid；Before the helical conveyer motor spindle is fixed on by card slot
Housing bottom；The bias cutter disc groups include eccentric cutterhead, bull stick and drilling machine；The top surface of push-bench kidney ellipsoid can accommodate
Space availability ratio is improved while multiple bias cutterheads；Eccentric cutterhead can reduce cutting blind area and its radius of gyration is small；It is eccentric
It is convenient by being detachably connected between cutter disc groups, procapsid, correction oil cylinder, spiral conveyer, slurry transportation system and back casing
Each parts are separately sunk down into active well when construction, are then installed in active well；
The kidney ellipsoid push-bench installation steps include：Eccentric cutterhead is fixed on by bolt, nut on bull stick, bull stick is pacified
On drilling machine, bull stick, favourable turn are mounted in procapsid, correction oil cylinder is installed；Spiral conveyer is installed；Back casing is passed through
Flanged joint is on procapsid.
The present invention additionally uses a kind of kidney ellipsoid push-bench construction method, including digs active well and received well；After installation
Back iron；Jack is installed；It is laid with guide rail；Dig dewatering well；Each position of sinking kidney ellipsoid push-bench；Kidney ellipsoid push pipe is installed in well
Machine；Sinking pipeline；Sink top iron；It is laid with slurry pipeline and circuit-line；Normal jacking；The water in dewatering well is drained, is used in combination
Rubble backfills dewatering well；Each component of dismounting kidney ellipsoid push-bench simultaneously hangs out received well according to the sequence opposite with installation；
Inject thixotropic slurry；Dewatering well can gather together the water of the generation of jacking construction process；Backfill dewatering well prevents construction from tying
It is collapsed after beam.
Further, the slurry transportation system includes slurry transportation pipeline, horizontal feed pumps, lubricant adds pipeline,
Control element and vertical transport pump；The spiral conveyer discharge port is located above mud of technological requirement；The horizontal feed pump is located at waist
In round push-bench；The vertical transport pump is located in active well；The horizontal feed pump and vertical transport pump are respectively positioned on mud
On conveyance conduit；The lubricant addition pipeline is located above slurry transportation pipeline and lubricant adding tube road is equipped with control valve
Door；The control valve is connected to control element；The mud that will be cut is pumped from spiral by horizontal feed pump and vertical transport
Active well is transported below transporter, avoids artificial shovel soil transport soil；Lubricant is added in slurry transportation, can be effectively reduced
Frictional resistance；Quantitative lubricant is conveyed into slurry transportation pipeline by control element timing；
Further, the eccentric cutter disc groups include a main eccentric cutterhead and at least two secondary eccentric cutterheads；The major-minor
Eccentric cutterhead is mounted on respective bull stick and favourable turn independently of each other；The mutual indepedent operation of major-minor bias cutterhead, is independent of each other,
And selective use can be carried out as needed.
The invention also includes step is implemented as follows：The sequence at each position of sinking kidney ellipsoid push-bench is eccentric cutter disc groups, preceding
Shell, correction oil cylinder, spiral conveyer, back casing；According to each component of erection sequence sinking kidney ellipsoid push-bench, peace can be shortened
Fill the operating time construction effect of kidney ellipsoid push-bench
Before jacking, distance identical with head cutterhead of manually cutting the earth forward；It is pushed forward into, until cutterhead is completely into hole wall；It starts
Cutterhead；After cutterhead starts, correction oil cylinder is started, calibration tuningout is carried out to jacking orientation；Reduce the offset that follow-up jacking generates；
After sinking pipeline and top iron, first with iron jacking pipeline forward is pushed up, until the sealing ring of pipeline enclosure fits closely；Jacking at least two
After length of tubing, top iron is hung out；Rigid lantern ring is installed in final section rear end of pipeline；Steel collar passes through flanged joint with rear end of pipeline；
Slurry pipeline and circuit-line are laid in the pipeline between kidney ellipsoid push-bench head and rigid lantern ring；Slurry pipeline and electricity
The channel that route road is reserved by steel collar bottom is pierced by；The small-bore pipeline of steel collar and the front is reaching received well
Afterwards, it is mutually removed by flange, and hangs out received well；Slurry pipeline and circuit-line are located in pipeline and follow kidney ellipsoid top
Pipe machine moves forward；It reduces because jacking leads to the damage to circuit to pipeline forward.
Compared with prior art, the beneficial effects of the invention are as follows：
1. can apply to the pipe-jacking project of the special shapes such as kidney ellipsoid；
2. the space availability ratio of kidney ellipsoid push-bench is high；
3. the eccentric cutter disc groups stock-removing efficiency of independently working is high；
4. the damage during effectively avoiding sinking jacking head to kidney ellipsoid push-bench；
5. using earth pressure balance, it is suitable for the construction ground of a variety of soil properties；
6. slurry transportation rapid and convenient effectively maintains the environment in active well；
7. it is cost-effective, it is with a wide range of applications.
Description of the drawings
Fig. 1 is the explosive view of the present invention.
Fig. 2 is the partial structurtes enlarged drawing of the present invention.
In attached drawing：1. eccentric cutter disc groups；2. procapsid；3. correction oil cylinder；4. back casing；5. spiral conveyer；6. mud
Vehicle；7. slurry pipeline；8. lubricant adding tube；9. secondary bias cutterhead；10. main bias cutterhead；11. connecting rod.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1：A kind of kidney ellipsoid push-bench as shown in Figure 1, includes eccentric cutter disc groups 1, procapsid 2, correction oil cylinder
3, spiral conveyer 5, slurry transportation system and back casing 4；Kidney ellipsoid push-bench procapsid 2 and back casing 4 pass through flanged joint
And the front-back of procapsid 2 and back casing 4 is kidney ellipsoid；Eccentric cutter disc groups 1 are fixed on by bolt, nut on procapsid 2；
Correction oil cylinder 3 is connect by connecting rod 11 with procapsid 2；5 bottom of spiral conveyer is fixed on 2 bottom of procapsid by card slot；
Eccentric cutter disc groups 1 include eccentric cutterhead, bull stick and drilling machine；The top surface of push-bench kidney ellipsoid can accommodate multiple eccentric cutterheads
While improve space availability ratio；Enable multiple eccentric cutterheads it is mutually independent in a limited space in operation simultaneously, carry
High stock-removing efficiency；Eccentric cutterhead can reduce cutting blind area and its radius of gyration is small；Eccentric cutter disc groups 1, procapsid 2, correction oil
By being detachably connected between cylinder 3, spiral conveyer 5, slurry transportation system and back casing 4, by each zero when facilitating construction
Part is separately sunk down into active well, is then installed in active well；Reduce what the whole jacking heads of disposable sinking expended
Working hour and manpower；It avoids when nose drop because shaking receives damage and influence；
The kidney ellipsoid push-bench installation steps include：Eccentric cutterhead is fixed on by bolt, nut on bull stick, bull stick is pacified
On drilling machine, bull stick, favourable turn are mounted in procapsid 2, correction oil cylinder 3 is installed；Spiral conveyer 5 is installed；By back casing 4
By flanged joint on procapsid 2.
Embodiment 2：A kind of kidney ellipsoid push-bench construction method, it is characterised in that：Including digging active well and received well；Peace
Back iron after dress；Jack is installed；It is laid with guide rail；Dig dewatering well；Each position of sinking kidney ellipsoid push-bench；Kidney ellipsoid is installed in well
Push-bench；Sinking pipeline；Sink top iron；It is laid with slurry pipeline and circuit-line；Normal jacking；The water in dewatering well is drained,
It is used in combination rubble to backfill dewatering well；Each component of dismounting kidney ellipsoid push-bench simultaneously hangs out reception according to the sequence opposite with installation
Well；Inject thixotropic slurry；Dewatering well can gather together the water of the generation of jacking construction process；Backfill dewatering well prevents from constructing
After collapse.
Embodiment 3：As shown in Figure 1, the slurry transportation system includes slurry transportation pipeline 7, horizontal feed pump, lubricant
Add pipeline 8, mud of technological requirement 6, control element and vertical transport pump；The discharge port of the spiral conveyer 5 is located in mud of technological requirement 6
Side；Slurry transportation pipeline 7 is connected in the mud of technological requirement 6；The horizontal feed pump is located in kidney ellipsoid push-bench；It is described vertical
Delivery pump is located in active well；The horizontal feed pump and vertical transport pump are respectively positioned on slurry transportation pipeline 7；The lubricant
Addition pipeline 8 is located at 7 top of slurry transportation pipeline and lubricant adding tube road and is equipped with control valve；The control valve connection
To control element；The mud cut is transported into work from 5 lower section of spiral conveyer by horizontal feed pump and vertical transport pump
Well avoids artificial shovel soil transport；Lubricant is added in slurry transportation, frictional resistance can be effectively reduced, avoids mud stifled
Plug is in slurry transportation pipeline 7；It is opened and closed the control valve on lubricant addition pipeline 8 by control element, realizes timing to mud
Quantitative lubricant is conveyed in slurry transport pipeline；The dosage of lubricant is controlled, waste is reduced.
Embodiment 4：As shown in Fig. 2, the bias cutter disc groups include that a main eccentric cutterhead 10 and at least two is secondary eccentric
Cutterhead 9；The main eccentric cutterhead 10 and secondary eccentric cutterhead 9 are mounted on respective bull stick and favourable turn independently of each other；Main bias
The 9 mutual indepedent operation of cutterhead 10 and secondary eccentric cutterhead, is independent of each other, and can carry out selective use as needed；Main bias knife
The synergistic effect of disk 10 and secondary eccentric cutterhead 9, effectively improves stock-removing efficiency.
Embodiment 5：The sequence of each component of sinking kidney ellipsoid push-bench is eccentric cutter disc groups 1, procapsid 2, correction oil cylinder 3,
Spiral conveyer 5, back casing 4；According to each component of erection sequence sinking kidney ellipsoid push-bench, installation kidney ellipsoid push pipe can be shortened
The operating time of machine；Improve construction efficiency.
Embodiment 6：Before jacking, distance identical with cutterhead of manually cutting the earth forward；It is pushed forward into, until cutterhead is completely into hole
Wall；Start cutterhead；After cutterhead starts, correction oil cylinder 3 is started, calibration tuningout is carried out to jacking orientation；Follow-up jacking is reduced to generate
Offset；Frequent shutdown tuningout in follow-up jack-in process is avoided, ensure that the continuity of construction.
Embodiment 7：After sinking pipeline and top iron, first with iron jacking pipeline forward is pushed up, until the sealing ring of pipeline enclosure closely pastes
It closes；Behind jacking at least 2-section pipe road, top iron is hung out；Rigid lantern ring is installed in final section rear end of pipeline；Steel collar and rear end of pipeline
Pass through flanged joint；Slurry pipeline 7 and circuit-line are laid in the pipeline between kidney ellipsoid push-bench and rigid lantern ring；Mud
The channel that delivery pipe 7 and circuit-line are reserved by steel collar bottom is pierced by；Slurry pipeline 7 and circuit-line are located at pipeline
It is interior and follow kidney ellipsoid push-bench move forward；It reduces because jacking leads to the damage to circuit to pipeline forward；Avoid work progress
It is middle that safety accident occurs because circuit-line is impaired.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will be fallen in this Shen
It please be within disclosed scope and spirit.More specifically, disclose in the application, drawings and claims in the range of, can
With the building block and/or a variety of variations and modifications of layout progress to theme combination layout.In addition to building block and/or layout
Outside the modification and improvement of progress, to those skilled in the art, other purposes also will be apparent.
Claims (7)
1. a kind of kidney ellipsoid push-bench, it is characterised in that：Include eccentric cutter disc groups（1）, procapsid（2）, correction oil cylinder（3）,
Spiral conveyer（5）, slurry transportation system and back casing（4）；The kidney ellipsoid push-bench procapsid（2）And back casing（4）It is logical
Cross flanged joint and procapsid（2）And back casing（4）Front-back be kidney ellipsoid；The bias cutter disc groups（1）By bolt,
Nut is fixed on procapsid（2）On；The correction oil cylinder（3）Pass through connecting rod（11）With procapsid（2）Connection；The spiral fortune
Defeated machine（5）Bottom is fixed on procapsid by card slot（2）Bottom；The bias cutter disc groups（1）Including eccentric cutterhead, bull stick and brill
Machine；
The kidney ellipsoid push-bench installation steps include：Eccentric cutterhead is fixed on by bolt, nut on bull stick, bull stick is pacified
On drilling machine, bull stick, favourable turn are mounted on procapsid（2）It is interior, correction oil cylinder is installed（3）；Spiral conveyer is installed（5）；It will
Back casing（4）By flanged joint in procapsid（2）On.
2. a kind of kidney ellipsoid push-bench construction method, it is characterised in that：Including digging active well and received well；Back iron after installation；
Jack is installed；It is laid with guide rail；Dig dewatering well；Each position of sinking kidney ellipsoid push-bench；Kidney ellipsoid push-bench is installed in well；Under
Immersed tube road；Sink top iron；It is laid with slurry pipeline and circuit-line；Normal jacking；The water in dewatering well is drained, rubble pair is used in combination
Dewatering well is backfilled；Each component of dismounting kidney ellipsoid push-bench simultaneously hangs out received well according to the sequence opposite with installation；Injection is touched
Become mud.
3. kidney ellipsoid push-bench according to claim 1, it is characterised in that：The slurry transportation system includes slurry transportation
Pipeline（7）, horizontal feed pump, lubricant add pipeline（8）, mud of technological requirement（6）, control element and vertical transport pump；The spiral
Transporter（5）Discharge port be located at mud of technological requirement（6）Top；The mud of technological requirement（6）On be connected with slurry transportation pipeline（7）；It is described
Horizontal feed pump is located in kidney ellipsoid push-bench；The vertical transport pump is located in active well；Horizontal feed pump and vertical
Delivery pump is respectively positioned on slurry transportation pipeline（7）On；The lubricant adds pipeline（8）Positioned at slurry transportation pipeline（7）Top and
Lubricant adding tube road is equipped with control valve；The control valve is connected to control element.
4. kidney ellipsoid push-bench according to claim 1, it is characterised in that：The bias cutter disc groups include a main bias
Cutterhead（10）With at least two secondary eccentric cutterheads（9）；The main eccentric cutterhead（10）With secondary eccentric cutterhead（9）Pacify independently of each other
On respective bull stick and favourable turn.
5. kidney ellipsoid push-bench construction method according to claim 2, it is characterised in that：Each portion of sinking kidney ellipsoid push-bench
The sequence of part is eccentric cutter disc groups（1）, procapsid（2）, correction oil cylinder（3）, spiral conveyer（5）, back casing（4）.
6. kidney ellipsoid push-bench construction method according to claim 2, it is characterised in that：Before jacking, manually cut the earth forward
Distance identical with cutterhead；It is pushed forward into, until cutterhead is completely into hole wall；Start cutterhead；After cutterhead starts, correction oil cylinder is started
（3）, calibration tuningout is carried out to jacking orientation.
7. kidney ellipsoid push-bench construction method according to claim 2, it is characterised in that：After sinking pipeline and top iron, first
With iron jacking pipeline forward is pushed up, until the sealing ring of pipeline enclosure fits closely；Behind jacking at least 2-section pipe road, top iron is hung out；Most
Later section rear end of pipeline installs rigid lantern ring；Steel collar passes through flanged joint with rear end of pipeline；Slurry pipeline（7）And circuit-line
It is laid in the pipeline between kidney ellipsoid push-bench and rigid lantern ring；Slurry pipeline（7）Pass through steel collar bottom with circuit-line
The reserved channel in portion is pierced by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555682.0A CN108729925A (en) | 2018-06-01 | 2018-06-01 | Kidney ellipsoid push-bench and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555682.0A CN108729925A (en) | 2018-06-01 | 2018-06-01 | Kidney ellipsoid push-bench and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108729925A true CN108729925A (en) | 2018-11-02 |
Family
ID=63931662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810555682.0A Pending CN108729925A (en) | 2018-06-01 | 2018-06-01 | Kidney ellipsoid push-bench and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108729925A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961758A (en) * | 2022-07-29 | 2022-08-30 | 北京建工土木工程有限公司 | Modularized double-shell rectangular pipe jacking host machine and shelling, disassembling and remanufacturing method |
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| CN104265321A (en) * | 2014-08-06 | 2015-01-07 | 上海隧道工程有限公司 | Ultra-large full-face rectangular pipe jacking tunneling construction method |
| CN205478487U (en) * | 2015-12-31 | 2016-08-17 | 上海连成（集团）有限公司 | Tubing pump and pipeline's connection structure |
| CN107989629A (en) * | 2017-12-27 | 2018-05-04 | 中铁工程装备集团有限公司 | A kind of shield machine dreg removing system and the shield machine with dreg removing system |
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2018
- 2018-06-01 CN CN201810555682.0A patent/CN108729925A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277898A (en) * | 2011-04-28 | 2011-12-14 | 朱奎 | Drain pipe jacking construction method |
| CN104088647A (en) * | 2014-06-06 | 2014-10-08 | 中铁工程装备集团有限公司 | Shield tube push bench with super-large rectangular cross section |
| CN104265321A (en) * | 2014-08-06 | 2015-01-07 | 上海隧道工程有限公司 | Ultra-large full-face rectangular pipe jacking tunneling construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114961758A (en) * | 2022-07-29 | 2022-08-30 | 北京建工土木工程有限公司 | Modularized double-shell rectangular pipe jacking host machine and shelling, disassembling and remanufacturing method |
| CN114961758B (en) * | 2022-07-29 | 2022-12-20 | 北京建工土木工程有限公司 | Modularized double-shell rectangular pipe jacking host machine and shelling, disassembling and remanufacturing method |
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