CN107178655A - The construction method of PCCP pipes under MODEL OVER COMPLEX TOPOGRAPHY - Google Patents
The construction method of PCCP pipes under MODEL OVER COMPLEX TOPOGRAPHY Download PDFInfo
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- CN107178655A CN107178655A CN201610132399.8A CN201610132399A CN107178655A CN 107178655 A CN107178655 A CN 107178655A CN 201610132399 A CN201610132399 A CN 201610132399A CN 107178655 A CN107178655 A CN 107178655A
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- pccp
- pipes
- pccp pipes
- construction method
- crossbeam
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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
- 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
Abstract
The present invention relates to pipelaying techniques field, and in particular to the construction method of PCCP pipes under MODEL OVER COMPLEX TOPOGRAPHY.The construction method of PCCP pipes under the MODEL OVER COMPLEX TOPOGRAPHY that the present invention is provided, is included in that the transverse and longitudinal direction gradient is big, under rich groundwater landform, the depth and operating radius buried according to the gradient on slope, PCCP pipes, selection crawler crane construction；The job platform of laying groove and crawler crane is dug out on the slope, and substrate is laid on the back filled region by rolling；PCCP pipes are lifted；PCCP pipes lift by crane posterior axis and are arranged in parallel with groove, and interior drawing equipment in mounted PCCP pipes progress to drawing, and interior drawing equipment includes using hand cucurbit and electric hydraulic equipment to carry out；Mounted PCCP pipes are suppressed, suppress twice it is qualified after, to the pipe out-seam cementation of fissures between PCCP tube faucets end and socket end, female end and the filling of the working pit of socket end are consolidated；The pipeline of filling tamping is fixed and backfilled.The invention provides construction method of the PCCP pipelines of complete set in complicated landform.
Description
Technical field
The present invention relates to pipelaying techniques field, and in particular to the construction method of PCCP pipes under MODEL OVER COMPLEX TOPOGRAPHY.
Background technology
In the prior art, there is the large-scale PCCP pipeline mounting constructions engineering method of maturation in China, but method only makes at flat position
With the Pipe installing in complicated landform not being applied under MODEL OVER COMPLEX TOPOGRAPHY, especially the region of rich groundwater, using dragon
Gantry crane is constructed, the problem of having more, therefore, in current engineering PCCP pipeline mounting constructions, but due to large-scale PCCP
Self weight of pipeline is big, and large lifting equipment is higher to slope requirement, it is difficult to meet the lifting construction in the gradient larger period, it is impossible to
Pipe installing function is reached, does not reach the index for meeting economical rationality in engineering.
Chinese patent CN101968138A discloses a kind of PCCP pipeline fields perforate construction method, comprises the following steps：The
One step, shaves off original mortar cover in standard pipe position of opening, exposes compressor wire, and the ring blocked is needed in perforate
The special anchor block of compressor wire is loaded onto in 30mm bigger than opening diameter position on to compressor wire, and compressor wire is entered
Row anchoring, and it is with epoxy resin mortar that all anchor blocks are floating, steel wire anchoring block is embedded in advance in epoxy resin mortar, epoxy resin mortar
Thickness is more than or equal to the thickness of primary standard pipe mortar cover, and tapping does not smear epoxy resin mortar；Second step, by with branch pipe
Steel sleeve pipe dimidiation is more than pre-drilled cavity standard pipe external diameter in the integral sleeve pipe of position of opening Site Welding, casing inner diameter
100mm；3rd step, the dense packing effect expansive mortar in the gap between branch pipe steel sleeve pipe and primary standard pipe；4th step,
Steel wire is blocked in tapping and carries out being connected with branch pipe steel sleeve pipe branch pipe at pipeline tapping, pipeline tapping using drilling tool
Place's floating sealing of epoxy resin mortar.But the patent is not solved at present slope is larger, in underground water buried depth state engineering yet
PCCP pipeline mounting construction accuracys are low, the problem of difficulty of construction is high.
The content of the invention
In order to overcome defect of the prior art, under the MODEL OVER COMPLEX TOPOGRAPHY that the present invention is provided the construction method of PCCP pipes according to
Mountain region in engineering, a large amount of transverse and longitudinal double pitches present in beach landform are larger, the complexity that underground water buried depth is shallow, difficulty of construction is high
Orographic condition, transformation, arrangement and method for construction to various equipment optimize and revise that there is provided the large-scale PCCP of the solution of complete set
Construction method of the pipe in complicated landform.
The present invention is achieved through the following technical solutions：The construction method of PCCP pipes under MODEL OVER COMPLEX TOPOGRAPHY, including it is following
Step：
Step 1, transverse direction and the longitudinal direction gradient be big, under the MODEL OVER COMPLEX TOPOGRAPHY of rich groundwater, according to the gradient on slope,
The crawler crane that the depth that PCCP pipes are buried and the operating radius for applying man-hour requirement, selection and determination model match；
Step 2, on the slope more than the maximum ramp angle of crawler crane described in step 1, laying is dug out according to design requirement
Joined end to end by several by PCCP pipes adapter road groove when, and the groove foundation plane be batholith, in the groove
Either side by the way of cut and fill, the job platform for placing crawler crane is built, and to the backfill in cut and fill mode
Area carries out layered rolling, lays substrate on the back filled region by rolling, the substrate is arranged on below the crawler belt of crawler crane；
Step 3, PCCP pipes to be installed are lifted, the crawler crane that step 1 is determined sets the work built in step 2
On industry platform, according to the gradient on slope, the different hanger rope of the length that is matched from the gradient from the slope with it is to be installed
PCCP pipes are bundled, and the PCCP to be installed of binding is managed into firm hanger rope is hung on the suspension hook on cantilever, carries out lifting work
Industry, in lifting, the pipe axis after PCCP pipes lifting to be installed is with groove base surface in parallel arrangement, PCCP pipes to be installed
0 ° is maintained at having installed the angle of PCCP pipelines；
Step 4, carry out interior draw to PCCP pipes to be installed using interior drawing equipment to install, the interior drawing equipment is across two section PCCP
The electric hydraulic equipment that pipe is installed；
Step 5, mounted PCCP pipes are suppressed, by suppress twice it is qualified after, to be connected two section PCCP
Pipeline out-seam between the female end and socket end of pipe carries out cementation of fissures construction, and female end and the filling of the working pit of socket end are smash
It is real, i.e., part backfill is carried out to the pipeline installed and fixed；
Step 6, the mounted PCCP pipes that part backfill fixation can not be carried out in time are used in interim draws component to fix,
The interim interior chain block for drawing component to install across two section PCCP pipes.
Further, the build mode of the job platform is staging bench formula.
Further, when the foundation plane of the PCCP pipes dug out in step 2 is batholith, laid on batholith thick in 20 ㎝ thickness
Sand bedding course, the granularity of the medium coarse sand is 0.35~5.00mm.
Further, the medium coarse sand bed course uses staged isolation method, and the staged isolation method is in every three PCCP
The connection end of pipe sets the space for closing between the tooth pier of one of concrete, two tooth piers, is arranged on gradient upper end
PCCP pipes connection end sets and is connected at 1/3rd of tooth pier length with the PCCP pipes connection end of gradient lower end, the tooth pier
Below the position for being highly arranged on the hexagonal angle of PCCP pipes.
Further, the length of the tooth pier is 1500mm, is highly 1600mm, and the PCCP pipes set the center of tooth pier
Position.
Further, electric hydraulic equipment described in step 4 includes being separately positioned on bellmouth crossbeam dolly, socket crossbeam dolly
And hydraulic system and electric-control system on the hydraulic cylinder support walking dolly at middle part, the hydraulic system including setting respectively
Double-rod two-way hydraulic cylinder in PCCP pipes both sides to be installed, the double-rod two-way hydraulic cylinder both sides are respectively equipped with to be connected with piston rod
Controlling switch is respectively equipped with the piston connect, the double-rod two-way hydraulic cylinder, the controlling switch receives the control work of electric cabinet
Make, bellmouth crossbeam dolly and socket the crossbeam dolly is provided with bellmouth crossbeam and socket crossbeam, the bellmouth crossbeam and socket are horizontal
Adjusting screw rod is provided with the middle part of beam, the two ends of the bellmouth crossbeam and socket crossbeam are respectively equipped with the steel disc being hinged.
Further, the double-rod two-way hydraulic cylinder drives for bidirectional hydraulic, and stroke is 1.1m, and diameter of cylinder is 18 ㎝,
Cylinder body thrust is 30t, and movement velocity is 1.0m/ minutes.
Further, the hydraulic system includes 5.5 kilowatts of motor of power.
Further, drawn in interim described in step 6 component include being separately positioned on the stress crossbeam of upstream and downstream, connecting rod and
10t chain blocks.
Compared with prior art, superior effect is：The complicated landform PCCP pipe installation methods that the present invention is provided, are solved
Situations such as engineering geology and application achievements and existing technical merit, construction experience under complicated site operation environment,
Point step is taken to create operation platform, long strap regulation pipe road lifts angle, transforms and draw equipment increasing installation effect in tradition
Rate, the section by section measure such as fixed reinforcing mode, are solved under MODEL OVER COMPLEX TOPOGRAPHY in heavy grade from going up a slope to the large-scale PCCP of descending
The technical barrier of Pipe installing.
Brief description of the drawings
The schematic diagram that Fig. 1 is set for the construction method working face of PCCP pipes under MODEL OVER COMPLEX TOPOGRAPHY of the present invention；
Fig. 2 is this Fig. 1 front view；
Fig. 3 be MODEL OVER COMPLEX TOPOGRAPHY of the present invention under PCCP pipes construction method longitudinal section sectional view；
Fig. 4 be MODEL OVER COMPLEX TOPOGRAPHY of the present invention under PCCP pipes construction method in tooth pier cross section sectional view；
Fig. 5 be MODEL OVER COMPLEX TOPOGRAPHY of the present invention under PCCP pipes construction method in tooth pier structure amplification view；
Fig. 6 be MODEL OVER COMPLEX TOPOGRAPHY of the present invention under PCCP pipes construction method in pulling method sectional view.
Reference：
1- operating radius, 2- working faces, 3- hangs cantilever, and 4-PCCP is managed, 5- crawler cranes, 6- job platforms, 7- slanting faces,
8- tooth piers, 9- chain blocks, 10- electric hydraulic equipments, 11- suspension hooks, 12- hanger ropes, 13- PCCP pipes to be installed.
Embodiment
The specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, the construction method of PCCP pipes under the MODEL OVER COMPLEX TOPOGRAPHY that the present invention is provided is illustrated, including
Following steps：
Step 1, transverse direction and the longitudinal direction gradient be big, under the MODEL OVER COMPLEX TOPOGRAPHY of rich groundwater, according to the gradient on slope,
The crawler crane 5 that the depth that PCCP pipes 4 are buried and the operating radius 1 for applying man-hour requirement, selection and determination model match；
Step 2, on the slope, laying is dug out according to design requirement to be joined end to end adapter road by PCCP pipes 4 by several
Groove, the groove either side by the way of cut and fill, build place crawler crane 5 job platform 6, it is described
The build mode of job platform 6 is staging bench formula, and carries out layered rolling to the back filled region in cut and fill mode, in warp
Cross and substrate is laid on the back filled region rolled, the substrate is arranged on below the crawler belt of crawler crane 5；In the present embodiment, value of slope
Determination be to be determined according to the model of the crawler crane 5 of selection, more than the maximum allowable ramp angle of selected crawler crane 5
When, it is necessary to manufacture crawler crane job platform 6, such as：The climbing capacity of 320t crawler crane is 30%, certainly this and arm
Length is also relevant, that is, maximum ramp angle is 16.69 °, when actual topography and geomorphology has the gradient more than 16.69 °,
It is accomplished by building job platform 6；When the foundation plane of the PCCP pipes 4 dug out in step 2 is batholith, 20 are laid on batholith
Medium coarse sand bed course thick ㎝, the granularity of the medium coarse sand is 0.35~5.00mm；
Step 3, PCCP pipes 13 to be installed are lifted, the crawler crane 5 that step 1 is determined is set and repaiied in step 2
On the job platform 6 built, according to the gradient on slope, the different hanger rope of the length that is matched from the gradient from the slope
12 are bundled with PCCP pipes 13 to be installed, and the firm hanger rope 12 of PCCP pipes 13 to be installed of binding is hung in into cantilever 3
On suspension hook 11 on, carry out lifting operation, in lifting, PCCP pipes 13 to be installed lift by crane after pipe axis and groove base
Plinth face is in parallel arrangement, and PCCP pipes 13 to be installed are maintained at 0 ° with having installed the angle of the pipeline of PCCP pipes 4；
Step 4, carry out interior draw to PCCP pipes 13 to be installed using interior drawing equipment to install, the interior drawing equipment is across two sections
The electric hydraulic equipment 10 that PCCP pipes 13 are installed；
Step 5, mounted PCCP pipes 4 are suppressed, by suppress twice it is qualified after, to two sections being connected
Pipeline out-seam between the female end and socket end of PCCP pipes 4 carries out cementation of fissures construction, and by the work of female end and socket end
Hole filling tamping, i.e., carry out part backfill to the pipeline installed and fix；
Step 6, step and backfill are fixed to the pipeline that tamping is clogged in step 5.Pipeline fix and refilling step in,
When slope segment pipe is installed from the top down, displacement observation point is set in pipe, testing result is shown, the pipeline of PCCP pipes 4
When the gradient reaches more than 15%, PCCP pipes 4 have micro- falling tendency, and pipe seam progressively splits, beyond quality acceptance standard.Through
Analysis show that the pipeline of PCCP pipes 4, which glides, is primarily due to base surface for hard rock foundation, the rock on groove base surface
The thick medium coarse sand bed courses of 20 ㎝ are laid in stone foundation, when the pipeline foundation face gradient reaches certain limit, medium coarse sand bed course is just
Together with being formed between pipeline and rock mass " lubricant ", being installed external force by lower pipeline is influenceed, and forms falling tendency.
Conduit running plays cushioning effect when there is flowing pressure, it is to avoid pipeline directly contacts with batholith, damages pipeline, reduction entirety
The service life of pipeline.Medium coarse sand bed course under free state is also easy to produce " liquefaction " under external force, is caused under pipeline
Sliding subject matter.The present invention uses staged isolation, i.e., set one of concrete to stop pier 8 at every three pipe ends, by medium coarse sand
Staged isolation, forms the carrier of closing.Concrete thrust tooth pier 8 is arranged on hard rock foundation face, upstream and downstream direction
Below long 1.5m, the ㎝ of pipeline out-seam upstream 50, the ㎝ of downstream 100, thrust pier height to 120 ° of pipeline, using plain coagulation
Soil pours shaping, and the mounted PCCP pipes 4 that part backfill fixation can not be carried out in time are used in interim and draw component solid
Fixed, the interim interior drawing component is the chain block 9 installed across two section PCCP pipes 4, temporarily interior wherein described in step 6
Component is drawn to include the stress crossbeam, connecting rod and 10t chain blocks for being separately positioned on upstream and downstream.
Such as Fig. 3-5, the medium coarse sand bed course uses staged isolation method, and the staged isolation method is in every three PCCP
The connection end of pipe 4 sets the space for closing between the tooth pier 8 of one of concrete, two tooth piers 8, is arranged on the gradient
The connection end of PCCP pipes 4 of upper end sets and is connected at 1/3rd of the length of tooth pier 8 with the connection end of PCCP pipes 4 of gradient lower end,
The height of the tooth pier 8 is arranged on below the position of the hexagonal angle of PCCP pipes 4.The total length of tooth pier 8 is 3b, tooth pier
8 height is h.In the present embodiment, the length of the tooth pier 8 is that 3b is 1500mm, and height h is 1600mm, described
PCCP pipes 4 set the center of tooth pier 8, and 1/3rd length b of the length of tooth pier 8 are 500mm.
In the present embodiment, electric hydraulic equipment 10 described in step 4 includes being separately positioned on bellmouth crossbeam dolly, socket horizontal stroke
Beam dolly and hydraulic system and electric-control system on the hydraulic cylinder support walking dolly at middle part, running gear is drawn in whole
The support system of system, be also it is interior drawing equipment movement component, in PCCP pipes 4 walking dolly be divided into bellmouth crossbeam dolly,
Socket crossbeam dolly and the hydraulic cylinder support walking dolly composition positioned at middle part, it is ensured that bell and spigot crossbeam, hydraulic cylinder are in a water
Flat general work, reduces that connector is sagging causes the too big problem in gap, and whole component is formed entirety, be easily installed,
Remove, walk, form pipelining operation.Hydraulic cylinder and electric-control system, it is main to be responsible for providing interior pulling force, using fully automatic electric
Control operation, the hydraulic system includes being separately positioned on the double-rod two-way hydraulic cylinder of the both sides of PCCP pipes 13 to be installed, described double
Bar two-way hydraulic cylinder both sides, which are respectively equipped with, to be respectively equipped with control on the piston being connected with piston rod, the double-rod two-way hydraulic cylinder and opens
Close, it is poor to adjust pipeline left and right sides pipe seam.The controlling switch receives the control work of electric cabinet, the bellmouth crossbeam
Dolly and socket crossbeam dolly are provided with the middle part of bellmouth crossbeam and socket crossbeam, the bellmouth crossbeam and socket crossbeam provided with regulation spiral shell
Bar, bellmouth crossbeam and socket crossbeam are mainly responsible for interior pulling force being transferred on pipeline from crossbeam, pulling force when forming pipeline docking,
The bellmouth crossbeam and socket crossbeam use the ㎜ of diameter 150, and the ㎜ of thickness 15 hollow pipe or square steel are constituted, and middle part is set
Adjustable screw, so as in inner telescoping tube, be easy to dismounting.The two ends of the bellmouth crossbeam and socket crossbeam are respectively equipped with hinge
The steel disc connect, steel disc is mainly responsible for interior pulling force being transferred on bell and spigot crossbeam from hydraulic cylinder, and the connection steel disc is using use
Thickness is 20 ㎜, and width is 75 ㎜ steel plate, a length of 4.0m of every block of steel plate.Steel disc is connected to use with crossbeam, hydraulic cylinder
The double-rod two-way hydraulic cylinder that is articulated and connected drives for bidirectional hydraulic, and stroke is 1.1m, and diameter of cylinder is 18 ㎝, and cylinder body is pushed away
Power is 30t, and movement velocity is 1.0m/ minutes, and the hydraulic system includes 5.5 kilowatts of motor of power.The present invention is selected
Hydraulic cylinder is operated as chest expander using electronic-controlled full-automatic, installs effect high；From 30t hydraulic cylinders as chest expander, adopt
With Automatic Control, interior tension uniform, stably eliminates and causes cushion rubber to extrude using pulling force is suddenly big or suddenly small in chain sling manually operation
Problem, it is ensured that Pipe installing interface seal；The Full-automatic electric control device of use, simple to operate, operating personnel are few, relatively hang
Beam, which installs each class, can reduce installation personnel 5, save expense, particularly, labour cost in short supply to current human resources compared with
Height, with higher economic indicator；Stroke is used for 1.0m, speed is the hydraulic cylinder of 0.4m/ minutes, Pipe installing speed is fast,
Efficiency high, 2-3 section PCCP pipes 4 can be installed compared with each class is drawn in hanging beam more.Conventional steel wire rope is replaced to connect from steel disc,
Change flexible connection to be rigidly connected, reduce the sagging and increased installation gap of flexible connection, shorten pipeline docking time, increase
Effect is installed；During the Pipe installing of PCCP pipes 4, PCCP pipes 4, which are managed, has pipeline to dock personnel, suppress people in the interior confined space
, during using steel wire rope as interior drawing component, there is very big potential safety hazard, adopt in the related personnel such as member, technician, Quality Inspector
Connected with steel disc, reduce potential safety hazard, it is ensured that safe operation；Increase the walking in pipe dolly of PCCP pipes 4, transition is facilitated,
Increase effect；PCCP pipes 4 are installed equipment and moved at any time according to installation progress in Pipe installing, large-scale PCCP pipelines peace
It is large-scale girder steel to fill bell and spigot crossbeam, mobile inconvenient from great, can be utilized using walking dolly and be already assembled as type
Pipeline as track, convenient transfer is laborsaving.
The present invention is not limited to above-mentioned embodiment, in the case of without departing substantially from the substantive content of the present invention, people in the art
Member it is contemplated that any deformation, improvements, replacement each fall within protection scope of the present invention.
Claims (9)
1. the construction method of PCCP pipes under MODEL OVER COMPLEX TOPOGRAPHY, it is characterised in that the construction method comprises the following steps：
Step 1, transverse direction and the longitudinal direction gradient be big, under the MODEL OVER COMPLEX TOPOGRAPHY of rich groundwater, according to the gradient on slope,
The crawler crane (5) that the depth that PCCP pipes (4) are buried and the operating radius (1) for applying man-hour requirement, selection and determination model match；
Step 2, on the slope more than the maximum ramp angle of crawler crane described in step 1 (5), dug out according to design requirement
Lay by several by PCCP manage (4) join end to end adapter road groove when, and the groove foundation plane be batholith,
The either side of the groove builds the job platform (6) for placing crawler crane (5), and half-and-half dig by the way of cut and fill
Back filled region in half embankment formula carries out layered rolling, lays substrate on the back filled region by rolling, the substrate is arranged on shoe
Band is hung below the crawler belt of (5)；
Step 3, PCCP to be installed pipes (13) are lifted, the crawler crane (5) that step 1 is determined is arranged on step 2
On the job platform (6) of middle build, according to the gradient on slope, the length matched from the gradient from the slope is different
Hanger rope (12) is bundled with PCCP to be installed pipes (13), by the firm hanger rope of the PCCP to be installed pipes (13) of binding
(12) it is hung on the suspension hook (11) on cantilever (3), carries out lifting operation, in lifting, PCCP to be installed manages (13)
Pipe axis after lifting is with groove base surface in parallel arrangement, and PCCP pipes (13) to be installed are with having installed PCCP pipes (4) pipe
The angle in road is maintained at 0 °；
Step 4, carry out interior draw to PCCP pipes (13) to be installed using interior drawing equipment to install, the interior drawing equipment is across two
Save the electric hydraulic equipment (10) that PCCP pipes (13) are installed；
Step 5, the pipes of mounted PCCP (4) are suppressed, by suppress twice it is qualified after, to two sections being connected
Pipeline out-seam between the female end and socket end of PCCP pipes (4) carries out cementation of fissures construction, and by the work of female end and socket end
Hole filling tamping, i.e., carry out part backfill to the pipeline installed and fix；
Step 6, drawing component in interim is used to consolidate the mounted PCCP pipes (4) that can not carry out part backfill fixation in time
Fixed, the interim interior drawing component is the chain block (9) across two section PCCP pipes (4) installations.
2. according to claim 1 under MODEL OVER COMPLEX TOPOGRAPHY PCCP pipes construction method, it is characterised in that the operation
The build mode of platform (6) is staging bench formula.
3. according to claim 1 under MODEL OVER COMPLEX TOPOGRAPHY PCCP pipes construction method, it is characterised in that in step 2
When the foundation plane of the PCCP pipes (4) dug out is batholith, the thick medium coarse sand bed courses of 20 ㎝, the medium coarse sand are laid on batholith
Granularity be 0.35~5.00mm.
4. PCCP pipe constructions method under MODEL OVER COMPLEX TOPOGRAPHY according to claim 3, it is characterised in that the medium coarse sand
Bed course uses staged isolation method, and the staged isolation method is to set mixed together in every three PCCP connection ends for managing (4)
The space for closing between the tooth pier (8) of soil, two tooth piers (8) is coagulated, the PCCP pipes (4) of gradient upper end are arranged on
It is connected at 1/3rd of connection end setting tooth pier (8) length with PCCP pipes (4) connection end of gradient lower end, the tooth pier
(8) height is arranged on below the position of the hexagonal angle of PCCP pipes (4).
5. according to claim 4 under MODEL OVER COMPLEX TOPOGRAPHY PCCP pipes construction method, it is characterised in that the tooth pier
(8) length is 1500mm, is highly 1600mm, and the PCCP pipes (4) set the center of tooth pier (8).
6. according to claim 1 under MODEL OVER COMPLEX TOPOGRAPHY PCCP pipes construction method, it is characterised in that in step 4
The electric hydraulic equipment (10) includes being separately positioned on bellmouth crossbeam dolly, socket crossbeam dolly and the hydraulic pressure positioned at middle part
Hydraulic system and electric-control system on cylinder support walking dolly, the hydraulic system include being separately positioned on PCCP pipes to be installed
(13) the double-rod two-way hydraulic cylinder of both sides, the double-rod two-way hydraulic cylinder both sides are respectively equipped with the piston being connected with piston rod,
Controlling switch is respectively equipped with the double-rod two-way hydraulic cylinder, the controlling switch receives the control work of electric cabinet, described to hold
Mouth crossbeam dolly and socket crossbeam dolly are provided with the middle part of bellmouth crossbeam and socket crossbeam, the bellmouth crossbeam and socket crossbeam and are provided with
Adjusting screw rod, the two ends of the bellmouth crossbeam and socket crossbeam are respectively equipped with the steel disc being hinged.
7. according to claim 6 under MODEL OVER COMPLEX TOPOGRAPHY PCCP pipes construction method, it is characterised in that the double-rod
Two-way hydraulic cylinder drives for bidirectional hydraulic, and stroke is 1.1m, and diameter of cylinder is 18 ㎝, and cylinder body thrust is 30t, movement velocity
For 1.0m/ minutes.
8. according to claim 6 under MODEL OVER COMPLEX TOPOGRAPHY PCCP pipes construction method, it is characterised in that the hydraulic pressure
System includes 5.5 kilowatts of motor of power.
9. according to claim 1 under MODEL OVER COMPLEX TOPOGRAPHY PCCP pipes construction method, it is characterised in that in step 6
The interim interior drawing component includes the stress crossbeam, connecting rod and 10t chain blocks for being separately positioned on upstream and downstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610132399.8A CN107178655B (en) | 2016-03-09 | 2016-03-09 | The construction method of PCCP pipe under MODEL OVER COMPLEX TOPOGRAPHY |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610132399.8A CN107178655B (en) | 2016-03-09 | 2016-03-09 | The construction method of PCCP pipe under MODEL OVER COMPLEX TOPOGRAPHY |
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| Publication Number | Publication Date |
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| CN107178655A true CN107178655A (en) | 2017-09-19 |
| CN107178655B CN107178655B (en) | 2019-06-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775018A (en) * | 2018-06-11 | 2018-11-09 | 北京市新港永豪水务工程有限公司 | A kind of plateau penstock backfilling process |
| CN109442096A (en) * | 2018-12-29 | 2019-03-08 | 北京京水建设集团有限公司 | Drawing device and its construction method in a kind of PCCP pipeline |
| CN111946900A (en) * | 2020-06-28 | 2020-11-17 | 中铁十七局集团第三工程有限公司 | Pipe joint installation device and method |
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| CN111946900A (en) * | 2020-06-28 | 2020-11-17 | 中铁十七局集团第三工程有限公司 | Pipe joint installation device and method |
| CN111946900B (en) * | 2020-06-28 | 2022-02-08 | 中铁十七局集团第三工程有限公司 | Pipe joint installation device and method |
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