CN108675163A - High pressure abrupt slope diversion steel pipe lifting operation system and installation method - Google Patents
High pressure abrupt slope diversion steel pipe lifting operation system and installation method Download PDFInfo
- Publication number
- CN108675163A CN108675163A CN201810651204.XA CN201810651204A CN108675163A CN 108675163 A CN108675163 A CN 108675163A CN 201810651204 A CN201810651204 A CN 201810651204A CN 108675163 A CN108675163 A CN 108675163A
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- Prior art keywords
- track
- slopes
- penstock
- steel pipe
- trolley
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
Abstract
The invention discloses high pressure abrupt slope diversion steel pipe lifting operation system and installation method, truck crane is supported by truck crane supporting table, the side of the truck crane is provided with the platform trailer for transport pressure steel pipe；Slopes are installed for penstock below the side of truck crane supporting table, the first slopes track and the second slopes track of parallel arrangement are mounted side by side in the penstock installation slopes；All support is equipped with the long rails trolley being used to support with discharge pressure steel pipe on the first slopes track and the second slopes track, and the first longitudinal direction haulage gear and second longitudinal direction haulage gear of traction long rails trolley are separately provided for above the first slopes track and the second slopes track.This lifting operation platform can be used in that penstock is lifted and be laid in the slopes on high abrupt slope, is used for the laying of power station diversion pressure steel tube, and then improve the safety of construction, improves laying efficiency.
Description
Technical field
The invention belongs to pressure steel pipe of hydropower station technical field of construction, more particularly to high pressure abrupt slope diversion steel pipe lifting operation
System and installation method.
Background technology
Some hydropower station steep slope section penstock Fen Nan, northern two lines arrangement, import connect with gentle slope section steel pipe, outlet and workshop
Interior water intake ball valve connects.In addition to side slope about 40m after workshop and each anchor block are secretly to apply steel pipe, remaining is surface steel pipe, each anchor block
Downstream is set there are one telescopic joint, and 2~5 penstock buttresses are equipped with according to spacing difference between anchor block and anchor block.Pressure
The steel pipe vertical profile axis gradient is respectively 30.5 °, 18.5 ° and 40 °, and length respectively may be about 338 m, 324 m and 113m, and weight is about
6600 tons, drop is about 330m.
Due to being limited by construction site, it is laid with penstock on abrupt slope in order to realize, dedicated lifting is needed to make
Industry platform constructs to it.
Invention content
The purpose of the present invention is to provide high pressure abrupt slope diversion steel pipe lifting operation system and installation method, this lifting operations
System can be used in that penstock is lifted and be laid in the slopes on high abrupt slope, be used for the laying of power station diversion pressure steel tube,
And then the safety of construction is improved, improve laying efficiency.
In order to realize above-mentioned technical characteristic, the object of the present invention is achieved like this：The diversion steel pipe lifting of high pressure abrupt slope
Operating system, it includes truck crane supporting table, and truck crane is supported by the truck crane supporting table, and the side of the truck crane is set
It is equipped with the platform trailer for transport pressure steel pipe；Slopes, institute are installed for penstock below the side of truck crane supporting table
State the first slopes track and the second slopes track that parallel arrangement is mounted side by side in penstock installation slopes；First slope
All support is equipped with the long rails trolley being used to support with discharge pressure steel pipe on track body and the second slopes track, first
The first longitudinal direction haulage gear of traction long rails trolley is separately provided for above slopes track and the second slopes track
With second longitudinal direction haulage gear；Perpendicular arranged crosswise has horizontal sliding rail with the first slopes track and the second slopes track
Road, on the horizontal sliding track support cross track trolley is installed.
The truck crane is supported on by four hydraulic support leg being unfolded stabilizations in truck crane supporting table, on truck crane
It is provided with revolving platform, is supported on the revolving platform and arm is installed, the top end of arm is provided with suspension hook.
The first longitudinal direction haulage gear includes first hoist, and the first steel wire rope of the first hoist bypasses first
Fixed pulley is simultaneously connected with the long rails trolley on the first slopes track.
The second longitudinal direction haulage gear includes second hoist, and the second steel wire rope of the second hoist bypasses second
Fixed pulley is simultaneously connected with the long rails trolley on the second slopes track.
Lateral traction mechanism is connected on the cross track trolley, the lateral traction mechanism includes lateral hoist engine,
The transverse steel wire rope of the transverse direction hoist engine bypasses lateral fixed pulley and is connected with cross track trolley.
The penstock installation slopes include original layers, facing concrete have been poured in the upper surface of original layers, in face
The upper surface of layer concrete has poured hard formation concrete, the first slopes track, the second slopes track and horizontal sliding track
The position at place is equipped with the track substrate layer for attachment rail.
The long rails trolley and cross track trolley use identical structure.
The long rails trolley includes arc pallet, and the arc pallet is fixed on support post, and the support is vertical
Column is fixed on the top of vehicle frame, the bottom of vehicle frame is provided with top connecting plate, the lower face of the top connecting plate is solid
Dingan County is equipped with bottom connecting plate, and the lower face of the bottom connecting plate is installed with rail wheel support plate, the rail wheel branch
Rail wheel is equipped with by axis pin on fagging, the rail wheel support is in orbit, is fixed on the lateral wall of support post
Otic placode for fixation pressure steel pipe.
The method that penstock installation is carried out using diversion steel pipe lifting operation system in high pressure abrupt slope described in any one, including with
Lower step：
Step1：Truck crane is reached into truck crane supporting table, and the support that hydraulic support leg makes it stablize is unfolded；
Step2：Penstock is transported in truck crane supporting table with platform trailer, and positioned at the side of truck crane；
Step3：The transverse direction that penstock is lifted by crane from platform trailer, and is transferred in penstock installation slopes with truck crane
On small rail car；
Step4：By lateral elevator machine travel cross track trolley along horizontal sliding track horizontal sliding, and it is moved into
Position where second slopes track, then by it by hydraulic jack, jack-up is transferred on long rails trolley；
Step5：Long rails trolley is dragged by second hoist, and then penstock dragging is mounted on penstock and is installed
On support pier in slopes, and aforesaid operations are repeated, installation is complete for the penstock of side where by the second slopes track；
Step6：The penstock of side where installing the first slopes track again is dragged by first hoist vertical during the installation process
To small rail car, and then change its position on the first slopes track, is finally completed the installation of this section of all penstocks.
The method of the penstock installation, penstock will bundle jail after arriving cross track trolley or long rails trolley in place
Gu being laterally dragged to penstock axial direction using lateral hoist engine, small rail car jack-up is convenient for using 4 10 tons of jack
Wheel is swung to after being connected with penstock downslide lifting lug along the haulage cable of penstock axis direction, first hoist,
It will be fallen on down under track on the first slopes track.
The method have the advantages that：
1, by using the lifting operation system of above structure, it can be used in the penstock of steep slope section in Process of Hydropower Plant Construction
Lifting and laying, and then ensure that lifting be laid with operation safety, improve work efficiency, reduce the labor of operating personnel
Fatigue resistance.
2, penstock can effectively be lifted by above-mentioned truck crane, and then it is shifted.
3, it can realize that the lateral of cross track trolley is walked by using the horizontal sliding track of above structure, pass through institute
The the first slopes track and the second slopes track stated can easily realize longitudinal walking of long rails trolley, finally realize it
It is installed along abrupt slope.
It 4, can be convenient by the first longitudinal direction haulage gear, second longitudinal direction haulage gear and lateral traction mechanism
Realize the movement and walking of small rail car.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the plan view that the present invention arranges.
Fig. 2 is profilograph of the present invention.
Fig. 3 is small rail car structure chart of the present invention.
In figure：Truck crane supporting table 1, truck crane 2, hydraulic support leg 3, revolving platform 4, platform trailer 5, penstock 6,
Penstock installs slopes 7, the first slopes track 8, the first steel wire rope 9, the first fixed pulley 10, first hoist 11, the second slope
Track body 12, transverse steel wire rope 13, lateral hoist engine 14, the second fixed pulley 15, the second steel wire rope 16, lateral fixed pulley 17, the
Two hoist engines 18, horizontal sliding track 19, arm 20, cross track trolley 21, long rails trolley 22, original layers 23, face layer
Concrete 24, hard formation concrete 25, track substrate layer 26, arc pallet 27, otic placode 28, support post 29, vehicle frame 30, top
Connecting plate 31, bottom connecting plate 32, rail wheel support plate 33, axis pin 34, rail wheel 35.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in Figs. 1-3, high pressure abrupt slope diversion steel pipe lifting operation system, it includes truck crane supporting table 1, the truck crane branch
It is supported by truck crane 2 on support platform 1, the side of the truck crane 2 is provided with the platform trailer 5 for transport pressure steel pipe 6；In vapour
It is that penstock installs slopes 7 that vehicle, which is hung below the side of supporting table 1, has been mounted side by side in the penstock installation slopes 7 flat
The the first slopes track 8 and the second slopes track 12 of row arrangement；It is all propped up on the first slopes track 8 and the second slopes track 12
Support is equipped with the long rails trolley 22 being used to support with discharge pressure steel pipe 6, in the first slopes track 8 and the second slopes track
12 top is separately provided for the first longitudinal direction haulage gear and second longitudinal direction haulage gear of traction long rails trolley 22；
Perpendicular arranged crosswise has horizontal sliding track 19, the horizontal sliding with the first slopes track 8 and the second slopes track 12
Support is equipped with cross track trolley 21 on track 19.It can be used in power station by using the lifting operation system of above structure
The two-wire installation of penstock 6 in process of construction, and then installation effectiveness is effectively raised, it ensure that the safety of operation.
Further, the truck crane 2 is supported on truck crane supporting table 1 by four hydraulic support leg 3 being unfolded stabilizations
On, it is provided with revolving platform 4 on truck crane 2, is supported on the revolving platform 4 and arm 20 is installed, in the top end of arm 20
It is provided with suspension hook.Entire truck crane 2 can effectively be supported, and then is ensured by using above-mentioned hydraulic support leg 3
The safety of lifting.
Further, the first longitudinal direction haulage gear includes first hoist 11, and the first of the first hoist 11
Steel wire rope 9 is connected around the first fixed pulley 10 and with the long rails trolley 22 on the first slopes track 8.By using above-mentioned
First hoist 11 can drive long rails trolley 22 to be moved up and down along the first slopes track 8.
Further, the second longitudinal direction haulage gear includes second hoist 18, and the second of the second hoist 18
Steel wire rope 16 is connected around the second fixed pulley 15 and with the long rails trolley 22 on the second slopes track 12.By using above-mentioned
Second hoist 18 long rails trolley 22 can be driven to be moved up and down along the second slopes track 12.
Further, lateral traction mechanism is connected on the cross track trolley 21, the lateral traction mechanism includes
Lateral hoist engine 14, the transverse steel wire rope 13 of the transverse direction hoist engine 14 bypass lateral fixed pulley 17 and with cross track trolley 21
It is connected.Cross track trolley 21 can be drawn by above-mentioned lateral hoist engine 14 to slide along horizontal sliding track 19.
Further, the penstock installation slopes 7 include original layers 23, and face has been poured in the upper surface of original layers 23
Layer concrete 24 has poured hard formation concrete 25, the first slopes track 8, the second slope in the upper surface of facing concrete 24
Position where track body 12 and horizontal sliding track 19 is equipped with the track substrate layer 26 for attachment rail.
Further, the long rails trolley 22 and cross track trolley 21 use identical structure.
Further, the long rails trolley 22 includes arc pallet 27, and it is vertical that the arc pallet 27 is fixed on support
On column 29, the support post 29 is fixed on the top of vehicle frame 30, and the bottom of vehicle frame 30 is provided with top connecting plate 31,
The lower face of the top connecting plate 31 is installed with bottom connecting plate 32, and peace is fixed in the lower face of the bottom connecting plate 32
Equipped with rail wheel support plate 33, rail wheel 35, the rail wheel 35 are equipped with by axis pin 34 in the rail wheel support plate 33
Support is in orbit, and the otic placode 28 for fixation pressure steel pipe 6 is fixed on the lateral wall of support post 29.By using upper
The small rail car for stating structure, both may be implemented transverse shifting, can also realize longitudinal movement, and then meets penstock 6 and exist
Two-way conveying on horizontal and vertical, and when it is in lateral position, dress change to it is longitudinally fed during, it is only necessary to by very heavy
Top jacks up the top of vehicle frame 30, and removes the connection bolt between top connecting plate 31 and bottom connecting plate 32, rotates bottom
35 mounting bracket of rail wheel in portion can change its direction.
Embodiment 2：
In steel pipe transmission road and 50 tons of truck crane erect-position platform basic demands：
Weight 25t is saved according to 50 tons of truck crane characteristics, 40 tons of flat car transportation characterizations and each position maximum manufacturing cell, is faced
When construction transport routes, steel pipe lifting position of unloading should meet following requirement：
1）Width of roadway should be not less than 7 meters；
2）All bend turning radius should be not less than 14 meters；
3）Max. slope of plant road should be less than 12 degree；
4）Steel pipe lifting of unloading should meet the erect-position requirement of carrier and truck crane, and erect-position place is wide to cannot be less than 14 m,
2 vehicles can side by side after truck crane supporting leg stretches out, and work range is not more than the requirement of 7m.
5）There is the drop of about 13m or so with penstock mounting surface in truck crane and flat car erect-position platform, civil engineering is transferred
Before answer side slope support tested, and side slope basis should be able to fully meet penstock maximum manufacturing cell section weight 25t and
The sum of 50 tons of truck crane dead weight 40t, and side slope basis has enough security and stability.
6）Hoist engine is arranged near anchor block, utilizes the steel reinforcing near anchor block.Steel pipe decentralization anchor point is located at anchor block
Downslide lifting lug is buried on two buttresses of first support ring in upstream.
7）Penstock is secured to rear binding on trolley in place, and penstock axial direction side is laterally dragged to using 3 tons of hoist engines
To trolley is jacked up using 4 10 tons of jack and is swung to along penstock axis direction convenient for wheel.Haulage cable and pressure
After power steel pipe downslide lifting lug is connected, it will be fallen on glidepath under trolley.
The method that penstock installation is carried out using diversion steel pipe lifting operation system in high pressure abrupt slope described in any one, including with
Lower step：
Step1：Truck crane 2 is reached into truck crane supporting table 1, and the support that hydraulic support leg 3 makes it stablize is unfolded；
Step2：Penstock 6 is transported in truck crane supporting table 1 with platform trailer 5, and positioned at the side of truck crane 2；
Step3：Penstock 6 is lifted by crane from platform trailer 5 with truck crane 2, and is transferred in penstock installation slopes 7
On cross track trolley 21；
Step4：Cross track trolley 21 is drawn along 19 horizontal sliding of horizontal sliding track by lateral hoist engine 14, and makes it
It is moved to the position where the second slopes track 12, then by it by hydraulic jack, jack-up is transferred to long rails trolley 22
On；
Step5：Long rails trolley 22 is dragged by second hoist 18, and then the dragging of penstock 6 is mounted on pressure steel
Pipe is installed on the support pier in slopes 7, and repeats aforesaid operations, is pacified until by the penstock of 12 place side of the second slopes track
It installs into；
Step6：The penstock for installing 8 place side of the first slopes track again, is dragged by first hoist 11 during the installation process
Dynamic long rails trolley 22, and then change its position on the first slopes track 8, it is finally completed this section of all penstocks 6
Installation.
The method of the penstock installation, penstock 6 are in place to wanting after cross track trolley 21 or long rails trolley 22
Binding is secured, and laterally penstock axial direction is dragged to using lateral hoist engine 14, using 4 10 tons of jack by small rail car
It jacks up to swing to haulage cable and the penstock downslide along penstock axis direction, first hoist 11 convenient for wheel and hang
After ear is connected, it will be fallen on down under track on the first slopes track 8.
Above-described embodiment is used for illustrating the present invention, rather than limits the invention, the present invention spirit and
In scope of the claims, to any modifications and changes that the present invention makes, protection scope of the present invention is both fallen within.
Claims (10)
1. high pressure abrupt slope diversion steel pipe lifting operation system, it is characterised in that：It includes truck crane supporting table（1）, the automobile
Hang supporting table（1）On be supported by truck crane（2）, the truck crane（2）Side be provided with for transport pressure steel pipe（6）It is flat
Plate trailer（5）；In truck crane supporting table（1）Side below be penstock install slopes（7）, penstock installation slope
Body（7）On the first slopes track of parallel arrangement is mounted side by side（8）With the second slopes track（12）；The first slopes track
（8）With the second slopes track（12）On all supports be equipped with and be used to support and discharge pressure steel pipe（6）Long rails trolley
（22）, in the first slopes track（8）With the second slopes track（12）Top be separately provided for traction long rails trolley
（22）First longitudinal direction haulage gear and second longitudinal direction haulage gear；With the first slopes track（8）With the second slopes track（12）
Perpendicular arranged crosswise has horizontal sliding track（19）, the horizontal sliding track（19）It is small that upper support is equipped with cross track
Vehicle（21）.
2. diversion steel pipe lifting operation system in high pressure abrupt slope according to claim 1, it is characterised in that：The truck crane
（2）The hydraulic support leg being unfolded by four（3）Stabilization is supported on truck crane supporting table（1）On, in truck crane（2）On be provided with
Revolving platform（4）, the revolving platform（4）Upper support is equipped with arm（20）, in arm（20）Top end be provided with suspension hook.
3. diversion steel pipe lifting operation system in high pressure abrupt slope according to claim 1, it is characterised in that：The first longitudinal direction
Haulage gear includes first hoist（11）, the first hoist（11）The first steel wire rope（9）Around the first fixed pulley
（10）And with the first slopes track（8）On long rails trolley（22）It is connected.
4. diversion steel pipe lifting operation system in high pressure abrupt slope according to claim 1, it is characterised in that：The second longitudinal direction
Haulage gear includes second hoist（18）, the second hoist（18）The second steel wire rope（16）Around the second fixed pulley
（15）And with the second slopes track（12）On long rails trolley（22）It is connected.
5. diversion steel pipe lifting operation system in high pressure abrupt slope according to claim 1, it is characterised in that：The cross track
Trolley（21）On be connected with lateral traction mechanism, the lateral traction mechanism includes lateral hoist engine（14）, the transverse direction elevator
Machine（14）Transverse steel wire rope（13）Around lateral fixed pulley（17）And with cross track trolley（21）It is connected.
6. diversion steel pipe lifting operation system in high pressure abrupt slope according to claim 1, it is characterised in that：The penstock
Slopes are installed（7）Including original layers（23）, in original layers（23）Upper surface poured facing concrete（24）, in face layer coagulation
Soil（24）Upper surface poured hard formation concrete（25）, the first slopes track（8）, the second slopes track（12）And transverse direction
Sliding rail（19）The position at place is equipped with the track substrate layer for attachment rail（26）.
7. diversion steel pipe lifting operation system in high pressure abrupt slope according to claim 1, it is characterised in that：The long rails
Trolley（22）With cross track trolley（21）Using identical structure.
8. diversion steel pipe lifting operation system in high pressure abrupt slope according to claim 1 or claim 7, it is characterised in that：The longitudinal direction
Small rail car（22）Including arc pallet（27）, the arc pallet（27）It is fixed on support post（29）On, the support is vertical
Column（29）It is fixed on vehicle frame（30）Top, in vehicle frame（30）Bottom be provided with top connecting plate（31）, the top
Connecting plate（31）Lower face be installed with bottom connecting plate（32）, the bottom connecting plate（32）Lower face be fixedly mounted
There is rail wheel support plate（33）, the rail wheel support plate（33）On pass through axis pin（34）Rail wheel is installed（35）, the rail
Road wheel（35）Support is in orbit, in support post（29）Lateral wall on be fixed with for fixation pressure steel pipe（6）Otic placode
（28）.
9. carrying out the side of penstock installation using high pressure abrupt slope diversion steel pipe lifting operation system described in claim 1-8 any one
Method, it is characterised in that include the following steps：
Step1：By truck crane（2）Reach truck crane supporting table（1）, and hydraulic support leg is unfolded（3）The support for making it stablize；
Step2：Use platform trailer（5）By penstock（6）Transport truck crane supporting table（1）On, and it is located at truck crane（2）'s
Side；
Step3：Use truck crane（2）By penstock（6）From platform trailer（5）Upper lifting, and it is transferred to penstock installation slope
Body（7）On cross track trolley（21）On；
Step4：Pass through lateral hoist engine（14）Draw cross track trolley（21）Along horizontal sliding track（19）Horizontal sliding,
And it is moved into the second slopes track（12）The position at place, then by it by hydraulic jack, jack-up is transferred to longitudinal rail
Road trolley（22）On；
Step5：Pass through second hoist（18）Drag long rails trolley（22）, and then by penstock（6）Dragging is mounted on
Penstock installs slopes（7）On support pier on, and aforesaid operations are repeated, until by the second slopes track（12）Place side
Installation is complete for penstock；
Step6：First slopes track is installed again（8）The penstock of place side, passes through first hoist during the installation process
（11）Drag long rails trolley（22）, and then change it in the first slopes track（8）On position, it is all to be finally completed the section
Penstock（6）Installation.
10. the method for penstock installation according to claim 9, which is characterized in that penstock（6）It is small to cross track in place
Vehicle（21）Or long rails trolley（22）After to bundle securely, utilize lateral hoist engine（14）Laterally it is dragged to penstock axial direction side
To small rail car is jacked up using 4 10 tons of jack and is swung to along penstock axis direction, first hoist convenient for wheel
（11）Haulage cable be connected with penstock downslide lifting lug after, the first slopes track will be fallen on down under track（8）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651204.XA CN108675163A (en) | 2018-06-22 | 2018-06-22 | High pressure abrupt slope diversion steel pipe lifting operation system and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651204.XA CN108675163A (en) | 2018-06-22 | 2018-06-22 | High pressure abrupt slope diversion steel pipe lifting operation system and installation method |
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| Publication Number | Publication Date |
|---|---|
| CN108675163A true CN108675163A (en) | 2018-10-19 |
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ID=63811765
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| CN201810651204.XA Pending CN108675163A (en) | 2018-06-22 | 2018-06-22 | High pressure abrupt slope diversion steel pipe lifting operation system and installation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114704688A (en) * | 2021-08-13 | 2022-07-05 | 中铁三局集团有限公司 | Construction method of large-span inverted siphon pressure steel pipe at slope section |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704688A (en) * | 2021-08-13 | 2022-07-05 | 中铁三局集团有限公司 | Construction method of large-span inverted siphon pressure steel pipe at slope section |
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