CN109323049A - Bushing type aqueduct and its construction method of installation applied to through bridge - Google Patents
Bushing type aqueduct and its construction method of installation applied to through bridge Download PDFInfo
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- CN109323049A CN109323049A CN201811400560.0A CN201811400560A CN109323049A CN 109323049 A CN109323049 A CN 109323049A CN 201811400560 A CN201811400560 A CN 201811400560A CN 109323049 A CN109323049 A CN 109323049A
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- penstock
- concrete
- installation
- aqueduct
- bridge
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Classifications
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- 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
- F16L7/00—Supporting of pipes or cables inside other pipes or sleeves, e.g. for enabling pipes or cables to be inserted or withdrawn from under roads or railways without interruption of traffic
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- 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
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- 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
- F16L1/06—Accessories therefor, e.g. anchors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention discloses a kind of bushing type aqueduct and its construction method of installation applied to through bridge, and the construction method includes the following steps: step 1, aqueduct ditch channel excavation；Step 2: concrete sleeve installation；Step 3: aqueduct ditch trench backfill；Step 4: penstock installation；Step 5: Concrete Filled.Described sleeve pipe formula aqueduct includes concrete sleeve, concrete lift and penstock, concrete lift is set in the outside of penstock, concrete sleeve is set in the outside of concrete lift, support device is also connected between concrete sleeve and penstock, the bottom of penstock is fixedly provided with steel roller.The construction method procedure connection is close, effectively raises construction efficiency, and the stability of penstock is effectively guaranteed using casing layer structure cooperation support device, is allowed to be not easy to seep water for described sleeve pipe formula aqueduct.
Description
Technical field
The present invention relates to bushing type aqueduct technical field of construction, and in particular to a kind of casing applied to through bridge
Formula aqueduct and its construction method of installation.
Background technique
In the process of running, bell and spigot pipe seam can have micro infiltration phenomenon, but the infiltration meeting of long-time pipe seam to aqueduct
The supporting course soil softening for making the substructure pile foundation of railroad bridge, has an adverse effect to pile foundation, makes the peace of bed rearrangement bridge
There are great risks for row for the national games, according to engineering properties and pipeline construction characteristic, protect demand for pipeline antiseepage, heavy excavation is formed
After groove, using wearing anti-corrosion penstock in embedded precast concrete casing and carry out carrying out water-supply-pipe by the way of concrete joint filling
Road is laid with and protection.
For example, the patent document that Chinese invention patent application number is 201010101068.0 discloses a kind of laying water-supply-pipe
The construction method in road, characterized in that the following steps are included: 1) excavating ground: the pipe trench that section is rectangle is dug out on ground, will be managed
Ground is used as after the compacting of ditch bottom surface；2) it is laid with bed course: being first laid with a layer concrete bed course at pipe trench bottom；3) pipeline is laid with: will be moulded
Glue hose is laid in pipe trench above bed course according to engine request；Adjacent plastic hose is connected by three-way valve；4) water filling is done
Core: one end valve in one section of plastic hose road is closed, through the top end opening of the valve of the other end into this section of plastic hose
Water filling stops water filling and closes water filling port to keep hydraulic pressure after filling water in this section of plastic hose road and expanding；It is described
Plastic hose appearance be equipped with outwardly projecting structure；5) it fill concrete: is filled in the pipe trench on the outside of plastic hose road mixed
Solidifying soil, and plastic hose road is fully wrapped around, and before fill concrete is dried admittedly firmly, the water in plastic hose road will keep water
Pressure；When fill concrete at each valve preset operation well；6) it backfilling of pipe canal: after fill concrete is dried admittedly firmly, is filling
The top of concrete carries out sandy soil backfill, to tamp to backfill after sandy soil backfill, after backfill is dry, in backfill
Road crust is accomplished fluently in top, keeps it concordant with original road surface.
Above-mentioned prior art discloses the construction methods of laying water pipes, and the above-mentioned prior art is in actual application process
In have the following technical problems:
1, at pipe in such a way that plastic hose core pipe cooperates concrete, the consistency of core pipe caliber cannot be protected
Card, is easy to cause concrete destruction plastic hose road outside plastic hose road during fill concrete；
2, the sandwich layer using plastic hose as pipeline, the internal diameter of pipeline can not be accomplished very greatly, and sandwich layer does not also have
Anti-pressure ability；
3, construction efficiency is low.
Based on technical problem as above exists in the prior art, the present inventor combines years of researches experience, proposes one kind
Bushing type aqueduct and its construction method of installation applied to through bridge.
Summary of the invention
The present invention provides a kind of bushing type aqueduct and its construction method of installation applied to through bridge, described sleeve pipe
The stability of penstock is effectively guaranteed using casing layer structure cooperation support device for formula aqueduct, is allowed to be not easy to seep
Water, the construction method of installation procedure connection is close, effectively raises construction efficiency.
In order to achieve the above objectives, the invention adopts the following technical scheme:
The present invention provides a kind of bushing type aqueduct applied to through bridge, including DN2400 concrete sleeve, mixed
Solidifying soil pouring layer and penstock, concrete lift are set in the outside of penstock, and DN2400 concrete sleeve is set in
The outside of concrete lift is also connected with support device between concrete sleeve and penstock, the bottom of penstock is also
It is installed with steel roller.
Further, steel roller includes being welded on the steelframe of penstock bottom end and being installed on steelframe for capable of rotating
Steel roller.
Further, support device includes being welded on the bracing members frame on penstock top and being welded on penstock side
Bracing members bar, wherein bracing members frame and bracing members bar are connected to the inner wall of concrete sleeve, bracing members frame and concrete jacket
Also there are the placement spaces of wired hose between the inner wall of pipe.
The present invention provides a kind of construction method of installation of bushing type aqueduct applied to through bridge, including walks as follows
It is rapid:
Step 1, aqueduct groove is excavated, leveling is carried out to boundary of works area before construction and sundries is cleared up, using GPS measuring
Construction section control point aqueduct ditch is excavated by design size using total station measuring pipe centerline and groove opening sideline
Slot；
Step 2: installation DN2400 concrete sleeve is transferred DN2400 concrete sleeve to aqueduct ditch using crane
In slot, casing socket ring is cleared up, rubber seal is inserted in, lifted by crane again by DN2400 concrete sleeve to be installed and installation is completed
DN2400 concrete sleeve tentatively docked, DN2400 concrete sleeve is drawn in using outer daraf(reciprocal of farad) after the completion of preliminary docking
Installation is completed in bell and spigot, successively carries out installation DN2400 concrete sleeve, until completing full section construction；
Step 3: backfill aqueduct groove, along aqueduct groove two sides, groove edge uniformly backfills excavated material, layering booth
It paves whole and is compacted；
Step 4: installation penstock；
Step 4.1: steel roller is fixedly mounted in the penstock bottom of installation, it can will be in penstock using steel roller
The distance between the bottom end and the bottom end inside DN2400 concrete sleeve in portion are controlled in 150mm；
Step 4.2: the socket bridgeware of first section penstock is first welded in one end of first section penstock, penstock
Socket bridgeware one end for being welded in first section penstock circumferential welded seam welding after the completion of, welded inside head section penstock
Interim lifting lug or radial pull rod are connect, head section penstock is transferred in aqueduct groove and by head using truck crane and saves pressure
One end of steel pipe is protruded into DN2400 concrete sleeve, pulls head section penstock with the use of hoist engine or chain block
In DN2400 concrete sleeve, until first section penstock reaches design predetermined position；
Step 4.3: continuing to transfer penstock, carry out positioning with head section penstock and dock, until completing full section pressure
Steel pipe positioning and docking；
Step 4.4: strengthening construction being supported to the penstock in DN2400 concrete sleeve, using flux cored wire electricity
Bracing members pipe is welded in arc-welding on the lateral wall of penstock, wherein the other end of bracing members pipe is connected to DN2400 concrete
The inner sidewall of casing；
Step 4.5: placing wired hose pump line, wired hose pump line is placed on by DN2400 concrete sleeve and pressure
The top for the annulus that steel pipe is formed；
Step 5: fill concrete fills up the ring-type formed by DN2400 concrete sleeve and penstock using concrete
Space.
Further, during the installation of the bushing type aqueduct of through bridge, before step 1 construction,
Safety need to be carried out to the bridge pier of pipeline two sides to go along with sb. to guard him；It in step 1 further include that the size and location of pier footing are measured
Unwrapping wire and the step of be marked.
Further, further include in step 2 outside casing middle section reserve in injected hole insertion rod iron as outer drawing stress point,
Link the step of 3t electric block forms the outer pull system of pipe laying and pipeline to be installed.
Further, the material of rubber seal is polytetrafluoroethylene (PTFE) in step 2.
It further, further include the step that the armpit angular zone of DN2400 concrete sleeve is filled up to tamping with rubble in step 3
Suddenly wherein, tamping operation is carried out using vibrator.
Further, further include the steps that carrying out position correction to head section steel pipe using jack or crowbar in step 4.2；
Further include the steps that carrying out position correction to penstock using jack or crowbar in step 4.3.
Further, the welding of circumferential welded seam uses pulsed argon arc welding in step 4.2.
Further, the filling of concrete is carried out in step 5 by the way of primary concreting.
Further, fill concrete includes 120 parts of cement, 40 parts of lime stone matter mountain flour, 10-20 parts of iron powder in step 5,
3-5 parts and 120 parts of water of sulfurous acid sodium powder, above-mentioned each ingredient is by mass.
Compared with prior art, superior effect of the invention is:
Bushing type aqueduct of the present invention applied to through bridge, by be equipped with concrete jacket tube layer,
Concrete lift, penstock layer and support device, are effectively guaranteed the stability of penstock, are allowed to be not easy to seep water；
The construction method of installation procedure connection is close, effectively raises construction efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of 1 middle sleeve formula aqueduct of embodiment in the present invention；
Wherein, 1-DN2400 concrete sleeve, 2- concrete lift, 3- penstock, 4- support device, 41- steel branch
Support, 42- bracing members bar, 5- steel roller, 51- steelframe, 52- steel roller, 6- wired hose.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail, it should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Embodiment 1
As shown in Fig. 1, a kind of bushing type aqueduct applied to through bridge, including DN2400 concrete sleeve 1,
Concrete lift 2 and penstock 3, concrete lift 2 are set in the outside of penstock 3, DN2400 concrete sleeve 1
It is set in the outside of concrete lift 2, support device 4 is also connected between DN2400 concrete sleeve 1 and penstock 3,
The bottom of penstock 3 is fixedly provided with steel roller 5.
Steel roller 5 includes the steelframe 51 for being welded on 3 bottom end of penstock and the steel being installed on steelframe 51 that can be rotated
Roller 52.
Support device 4 includes the bracing members frame 41 for being welded on 3 top of penstock and the steel for being welded on 3 side of penstock
Support rod 42, wherein bracing members frame 41 and bracing members bar 42 are connected to the inner wall of DN2400 concrete sleeve 1, bracing members frame
Also there are the placement spaces of wired hose 6 between the inner wall of 41 and DN2400 concrete sleeve 1.
Construction method of installation in the present invention applied to the bushing type aqueduct of through bridge, includes the following steps:
Step 1, aqueduct groove is excavated, leveling is carried out to boundary of works area before construction and sundries is cleared up, using GPS measuring
Construction section control point aqueduct ditch is excavated by design size using total station measuring pipe centerline and groove opening sideline
Slot；
Step 2: installation DN2400 concrete sleeve 1 is transferred DN2400 concrete sleeve 1 to aqueduct using crane
In groove, clear up casing socket ring, be inserted in rubber seal, lift by crane again by DN2400 concrete sleeve 1 to be installed be completed
The DN2400 concrete sleeve 1 of installation is tentatively docked, and uses outer daraf(reciprocal of farad) by DN2400 concrete jacket after the completion of preliminary docking
Pipe 1, which is drawn in, completes installation in bell and spigot, successively carry out installation DN2400 concrete sleeve 1, until completing full section construction；
Step 3: backfill aqueduct groove, along aqueduct groove two sides, groove edge uniformly backfills excavated material, layering booth
It paves whole and is compacted；
Step 4: installation penstock 3；
Step 4.1: steel roller 5 is fixedly mounted in 3 bottom of penstock of installation, it can be by pressure steel using steel roller 5
The distance between bottom end inside bottom end and DN2400 concrete sleeve 1 inside pipe 3 is controlled in 150mm；
Step 4.2: the socket bridgeware of first section penstock 3 is first welded in one end of first section penstock 3, pressure steel
The socket bridgeware of pipe 3 is welded in after the completion of the circumferential welded seam welding of one end of first section penstock 3, saves penstock 3 in head
The interim lifting lug of interior welds or radial pull rod, will be in the head section decentralization to aqueduct groove of penstock 3 and will using truck crane
One end of head section penstock 3 is protruded into DN2400 concrete sleeve 1, and head is saved pressure with the use of hoist engine or chain block
Steel pipe 3 pulls in DN2400 concrete sleeve 1, until first section penstock 3 reaches design predetermined position；
Step 4.3: continuing to transfer penstock 3, carry out positioning with head section penstock 3 and dock, until completing full section pressure
The positioning of power steel pipe 3 and docking；
Step 4.4: strengthening construction being supported to the penstock 3 in DN2400 concrete sleeve 1, using flux cored wire
Arc welding welds bracing members pipe on the lateral wall of penstock 3, wherein the other end of bracing members pipe is connected to DN2400 coagulation
The inner sidewall of soil suite pipe 1；
Step 4.5: placing wired hose pump line, wired hose pump line is placed on by DN2400 concrete sleeve 1 and pressure
The top for the annulus that power steel pipe 3 is formed；
Step 5: fill concrete fills up the ring formed by DN2400 concrete sleeve 1 and penstock 3 using concrete
Shape space.
It, need to be to pipeline two before step 1 construction during the installation of the bushing type aqueduct of through bridge
The bridge pier of side is carried out safety and is gone along with sb. to guard him；It in step 1 further include that the size and location of pier footing are measured with unwrapping wire and is carried out
The step of label.
The material of rubber seal is polytetrafluoroethylene (PTFE) in step 2.
Further include the steps that carrying out position correction to head section steel pipe using jack or crowbar in step 4.2；In step 4.3
Further include the steps that carrying out position correction to penstock 3 using jack or crowbar.
The welding of circumferential welded seam uses pulsed argon arc welding in step 4.2.
The filling of concrete is carried out in step 5 by the way of primary concreting.
Fill concrete includes 120 parts of cement, 40 parts of lime stone matter mountain flour, 10-20 parts of iron powder, sodium sulfite in step 5
3-5 parts and 120 parts of water of powder, above-mentioned each ingredient is stirred by concrete mixing plant by mass, by above-mentioned each ingredient.
In the step 2 of the present embodiment, when casing is tentatively docked, socket end and female end keeping parallelism, and make four
All gaps are roughly equal.
In the step 4.5 of the present embodiment, wired hose 6 is not necessarily to the fixed bit between concrete sleeve 1 and penstock 3
It sets, when in order to concreting, takes out pump line outside when pouring, avoid in pump line Transducers Embedded in Concrete.
In the work progress of through bridge, before step 1 construction, safety need to be carried out to the bridge pier of pipeline two sides and is enclosed
Shield；Further include the steps that measuring the size and location of pier footing unwrapping wire in step 1 and spreads ash label, wherein
Rectangle enclosing is done with 1.8m high color steel tile apart from the peripheral minimum position 1m of bridge pier, 4 Angle Positions are driven underground 50cm with square steel, do 4
Road upright bar support, laterally sets up 2 cross bars.
Further include the steps that carrying out position correction to head section steel pipe using jack or crowbar in step 4.2；In step 4.3
Further include the steps that carrying out position correction to penstock 3 using jack or crowbar.
Embodiment 2
It further include that insertion rod iron links 3t electricity as outer drawing stress point in the reserved injected hole in middle section outside casing in step 2
Dynamic cucurbit forms the step of outer pull system of pipe laying and pipeline to be installed.In the present embodiment only to insertion rod iron conduct
The step of outer drawing stress point and link 3t electric block shape, is defined, in addition to this in the same manner as in Example 1.
Embodiment 3
Further include the steps that the armpit angular zone of DN2400 concrete sleeve 1 is filled up tamping wherein with rubble in step 3, adopts
Tamping operation is carried out with vibrator.Only be defined in the present embodiment to the step of filling up tamping, in addition to this with implementation
It is identical in example 1.
The present invention is not limited to the above embodiments, and the above embodiments and description only describe of the invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these change and change
Into all fall within the protetion scope of the claimed invention.The claimed scope of the invention is defined by the following claims.
Claims (10)
1. a kind of bushing type aqueduct applied to through bridge, including DN2400 concrete sleeve, concrete lift and
Penstock, concrete lift are set in the outside of penstock, and DN2400 concrete sleeve is set in concrete lift
Outside, support device is also connected between concrete sleeve and penstock, the bottom of penstock is fixedly provided with steel roller.
2. the bushing type aqueduct according to claim 1 applied to through bridge, which is characterized in that steel roller includes
It is welded on the steelframe of penstock bottom end and the steel roller being installed on steelframe that can be rotated.
3. the bushing type aqueduct according to claim 1 applied to through bridge, which is characterized in that support device packet
The bracing members bar for including the bracing members frame for being welded on penstock top and being welded on penstock side, wherein bracing members frame and
Bracing members bar is connected to the inner wall of concrete sleeve, and also there are wired hoses between bracing members frame and the inner wall of concrete sleeve
Placement space.
4. a kind of construction method of installation of the bushing type aqueduct applied to through bridge, which is characterized in that including walking as follows
It is rapid:
Step 1, aqueduct groove is excavated, leveling is carried out to boundary of works area before construction and sundries is cleared up, is constructed using GPS measuring
Section control point aqueduct groove is excavated by design size using total station measuring pipe centerline and groove opening sideline；
Step 2: installation DN2400 concrete sleeve is transferred DN2400 concrete sleeve to aqueduct groove using crane
In, casing socket ring is cleared up, rubber seal is inserted in, is lifted by crane again by DN2400 concrete sleeve to be installed and installation is completed
DN2400 concrete sleeve is tentatively docked, and is drawn in DN2400 concrete sleeve using outer daraf(reciprocal of farad) after the completion of preliminary docking and is held
Installation is completed in socket, successively carries out installation DN2400 concrete sleeve, until completing full section construction；
Step 3: backfill aqueduct groove, along aqueduct groove two sides, groove edge uniformly backfills excavated material, and layering paves flat
It is whole and be compacted；
Step 4: installation penstock；
Step 4.1: steel roller is fixedly mounted in the penstock bottom of installation, it can will be inside penstock using steel roller
The distance between bottom end inside bottom end and DN2400 concrete sleeve is controlled in 150mm；
Step 4.2: the socket bridgeware of first section penstock being first welded in one end of first section penstock, penstock is inserted
Mouth bridgeware is welded in after the completion of the circumferential welded seam welding of one end of first section penstock, is saved penstock interior welds in head and is faced
When lifting lug or radial pull rod, head section penstock is transferred in aqueduct groove and by head using truck crane and saves penstock
One end protrude into DN2400 concrete sleeve, head section penstock is pulled in into DN2400 with the use of hoist engine or chain block
In concrete sleeve, until first section penstock reaches design predetermined position；
Step 4.3: continuing to transfer penstock, carry out positioning with head section penstock and dock, until completing full section penstock
Positioning and docking；
Step 4.4: strengthening construction being supported to the penstock in DN2400 concrete sleeve, using flux-cored arc welding
Bracing members pipe is welded on the lateral wall of penstock, wherein the other end of bracing members pipe is connected to DN2400 concrete sleeve
Inner sidewall；
Step 4.5: placing wired hose pump line, wired hose pump line is placed on by DN2400 concrete sleeve and penstock
The top of the annulus of formation；
Step 5: it is empty to fill up the ring-type formed by DN2400 concrete sleeve and penstock using concrete for fill concrete
Between.
5. the construction method of installation of the bushing type aqueduct according to claim 4 applied to through bridge, feature
It is, it, need to be to pipeline two sides before step 1 construction during the installation of the bushing type aqueduct of through bridge
Bridge pier carry out safety go along with sb. to guard him；It in step 1 further include that the size and location of pier footing are measured with unwrapping wire to go forward side by side rower
The step of note.
6. the construction method of installation of the bushing type aqueduct according to claim 4 applied to through bridge, feature
It is, further includes that insertion rod iron links the electronic calabash of 3t as outer drawing stress point in the reserved injected hole in middle section outside casing in step 2
Reed forms the step of outer pull system of pipe laying and pipeline to be installed.
7. the construction method of installation of the bushing type aqueduct according to claim 4 applied to through bridge, feature
It is, further includes the steps that the armpit angular zone of DN2400 concrete sleeve is filled up tamping wherein with rubble in step 3, using vibration
Stamper carries out tamping operation.
8. the construction method of installation of the bushing type aqueduct according to claim 4 applied to through bridge, feature
It is, further includes the steps that carrying out position correction to head section steel pipe using jack or crowbar in step 4.2；In step 4.3 also
Include the steps that carrying out position correction to penstock using jack or crowbar.
9. the construction method of installation of the bushing type aqueduct according to claim 4 applied to through bridge, feature
It is, carries out the filling of concrete in step 5 by the way of primary concreting.
10. the construction method of installation of the bushing type aqueduct according to claim 4 applied to through bridge, feature
It is, fill concrete includes 120 parts of cement, 40 parts of lime stone matter mountain flour, 10-20 parts of iron powder, sulfurous acid sodium powder 3- in step 5
5 parts and 120 parts of water, above-mentioned each ingredient is by mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811400560.0A CN109323049B (en) | 2018-11-22 | 2018-11-22 | Sleeve type water pipe applied to crossing bridge and installation and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811400560.0A CN109323049B (en) | 2018-11-22 | 2018-11-22 | Sleeve type water pipe applied to crossing bridge and installation and construction method thereof |
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| CN109323049A true CN109323049A (en) | 2019-02-12 |
| CN109323049B CN109323049B (en) | 2020-09-08 |
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| CN110735969A (en) * | 2019-09-11 | 2020-01-31 | 北京翔鲲水务建设有限公司 | tunnel penetrating steel pipe installation method and tunnel pulley arrangement structure |
| CN111473162A (en) * | 2020-04-15 | 2020-07-31 | 中国电建集团四川工程有限公司 | Threading construction method for large-diameter long-pipe-section circulating water pipeline |
| CN111946906A (en) * | 2020-06-16 | 2020-11-17 | 天津市林海建设工程集团有限公司 | Floating pipe construction device for penetrating functional pipeline into long-distance sleeve and construction method thereof |
| CN113235715A (en) * | 2021-05-28 | 2021-08-10 | 中铁二院工程集团有限责任公司 | Construction structure of water supply and drainage pipeline underpass railway bridge and construction method thereof |
| CN113700934A (en) * | 2021-08-28 | 2021-11-26 | 濮阳市水利勘测设计院 | Pipe jacking pipeline protection structure for rural water supply engineering |
| CN113719660A (en) * | 2021-07-26 | 2021-11-30 | 中国水利水电第十四工程局有限公司 | Construction method for penetrating through structure |
| CN114857353A (en) * | 2022-04-21 | 2022-08-05 | 中铁一局集团有限公司 | Construction method of jacking pipe internally-penetrated steel sleeve steel steam pipeline |
| CN117569271A (en) * | 2023-11-23 | 2024-02-20 | 水利部交通运输部国家能源局南京水利科学研究院 | Construction method for steel pipe lining in linear hydraulic tunnel |
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