CN109024675A - A kind of construction method of underground pipe gallery group pipe no-dig technique directional traversing - Google Patents
A kind of construction method of underground pipe gallery group pipe no-dig technique directional traversing Download PDFInfo
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- CN109024675A CN109024675A CN201810834904.2A CN201810834904A CN109024675A CN 109024675 A CN109024675 A CN 109024675A CN 201810834904 A CN201810834904 A CN 201810834904A CN 109024675 A CN109024675 A CN 109024675A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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Abstract
The invention discloses a kind of construction method of underground pipe gallery group pipe no-dig technique directional traversing, arrangement and spacing including group's pipe wall bushing at change piping lane egress hatch, to cooperate dilatory pipe repeatedly to creep into back the construction process requirement dragged；Mud is prepared, using no-dig technique Directional Drilling inclination section without earthing construction method, and bores pilot hole by design curve track；Multistage, which is returned, to expand, and aperture is made to meet design requirement；Returning drags group to manage and lay, and so that the group's pipe dragged is penetrated combined water proof casing, pours egress hatch concrete again；Dilatory pore Dispose by grouting.It using the invention, can effectively solve that pipeline is more, dilatory amount is big, pipeline winding, at group's pipe through walls the problems such as leak, road settlement and cracking, and effectively shortens the duration, reduce costs.
Description
Technical field
The present invention relates to Urban Underground pipe gallery construction routing fields, in particular to a kind of underground pipe gallery group pipe no-dig technique
The construction method of directional traversing.
Background technique
Major urban arterial highway two sides arrange underground pipe gallery, accommodate the pipelines such as electric power, communication, combustion gas, water supply in corridor body,
And the pipeline of two sides will be attached with the service sleeve of pipeline egress hatch wall, and make to drag by no-dig technique directional traversing technology
Trombone slide line passes through major trunk roads, achievees the purpose that corridor body internal pipeline in both sides of the road is connected to.Pipeline is finally connected such as FIG. 1 to FIG. 4 institute
Show.Fig. 1 is underground pipe gallery group pipe arragement construction schematic diagram.
Due to the nest of tubes that electric power and telecommunications design are 6 × 3, the PE that electric power nest of tubes is outer diameter 200mm is managed, and communication nest of tubes is outer
The PE of diameter 110mm is managed, and PE pipe clear distance through walls is only 100mm, if once drawing by the nest of tubes of design requirement 6 × 3, under road
The mud cavity that diameter is more than 2m will be formed, mud cavity top is only 2m apart from status road surface, it will road surface is caused to collapse,
Cracking；It can make to be close between single tube simultaneously, and can make nest of tubes that wrapping phenomena occur, nest of tubes string hole easily occur, lead to mud stream
It loses, surface subsidence.
Electric power, telecommunications pipe are the arrangements carried out by 6 × 3 form, since PE tubing matter is harder, when drawing unearthed, in pipe
Single tube is not easy to separate certain distance at corridor egress hatch wall, it is more difficult to which arrangement is formed and penetrated in water string.
The casing on wall is needed in the pipeline that egress hatch is towed back to, and original design can not meet herein anti-using PE casing
Water requirement.
Summary of the invention
For the present invention aiming at the deficiencies in the prior art, providing one kind can effectively solve that pipeline is more, dilatory amount is big, pipe
At line winding, group's pipe through walls the problems such as leak, road settlement and cracking, and the duration is effectively shortened, the ground reduced costs
The construction method of lower piping lane group pipe no-dig technique directional traversing.
To achieve the goals above, the construction method of underground pipe gallery group's pipe no-dig technique directional traversing designed by the present invention,
It is characterized in that, comprising the following steps:
S1 groups of pipe groupings: original power, communication group's pipe are resolved into several and managed by the group that 9~12 single tubes form array
Group, and the clear distance for the nest of tubes group for needing to pass through, unearthed point of pulling back to piping lane side wall minimum range, tractive force and simulated mud are joined
Number is designed；Ensure nest of tubes do not go here and there hole, road do not occur settle and crack, enable pipeline return haul out soil by design idea into
Row separates and arrangement.
S2 directional drilling: first pilot hole first is bored by planned course curve requirement, data are set on the geometric locus
Monitoring point；Be straightway to guarantee that directional drilling enters soil body part, working pit in the external side in corridor, inclination section go out working pit into
Enter this part of the soil body need it is exposed outside, and carry out drilling rod assembling by design inclination section curve, and guarantee to bury and be a little to unearthed point
Straightway.
The pre- reaming of S3: technique is expanded to directional drilling progress reaming using multistage return；
S4 groups of pipe layings: it returns and drags first group's pipe group, and setting is identical as group's pipe array manner at underground pipe gallery
Combination water string, make group pipe group single pipe sequentially pass through combination water string single casing in, to combined water proof
The laying that group pipe can be completed is fixed in casing；
S5 draws pore mud jacking: burying madjack pipe in nest of tubes two ends, and is blocked with cement mortar, reaches certain intensity
Afterwards, then mud jacking is carried out, completes the construction of the first group pipe；For mud jacking using layering mud jacking, layering mud jacking is exactly that the top of end is set
Set one madjack pipe, middle part setting two, lower part setting of madjack pipe, first depression, then middle part, last top.Because being
There is nest of tubes in duct, if cement grout is difficult to fill in not stratified duct.
S6 repeats the construction that step S2-S5 is sequentially completed factor group pipe group.
Further, the clear distance between group's pipe group is 500~800mm；Tractive force Fmax=(F rubs+F certainly), F
Rub viscous comprehensive frictional resistance of the frictional resistance pipeline in hole of generation of being self-possessed in hole for pipeline, F from pipeline in hole from
The frictional resistance generated again；Unearthed point of pulling back to piping lane side wall minimum range is 2m.
Further, the ratio of mud of cement slurry is 0.5~1.0 in the simulated mud, optimum ratio 0.7.Too small sand
Slurry mobility is smaller, and the property infused is poor, and subgrade strengthening effect is not achieved.Excessive then water is big, has larger impact to subgrade soils, and
Seed harvest contraction is larger, and slip casting anaphase effect is poor.Its bleeding rate is less than after slurry bleeding maximum no more than 6%, mix 3 hours
2%.It is absorbed again by slurry in 24 hours.
The fluidity of slurry is controlled to be controlled in 50s after 14~18s, mixing 30 minutes.
By experiment, appropriate swelling agent can be participated in slurry, but its swelling agent rate is less than 5%.After reducing slurries calculus
Gap is shunk, is added 5% cement expansive material when stirring, carries out configuration slurries in strict accordance with experiment proportion when stirring.
Further, the data monitoring o'clock in step s2 is arranged one every 3 meters.
Further, the connecting plate is rectangular configuration, and the aperture of the pre- reaming is twice of connecting plate side length.So that
Nest of tubes returns when dragging not by the obstruction of tube wall.Connecting plate is set as rectangle, so that connecting plate is connected with drill bit of pulling back, connecting plate
It is connected by clip with pipeline, it is more convenient drawing.
Further, the step s3 divides three-level to carry out reaming, and every grade of reaming aperture differs 100mm.Because passing by one's way pipe
Line buried depth is shallower, the pipeline landslide that primary pre- reaming will result in place, and then influences surface subsidence.
Further, the spacing of the single water string of same group pipe is 100mm in the step s4.Because pipeline
PE material is harder, returns after hauling out soil, unloads lower connecting plate, then respectively penetrates in the single water string in combination water string,
But it separates too big apart from difficult, is embedded in the casing of pipeline egress hatch to guarantee back that the pipeline dragged can be penetrated smoothly,
Single water string distance in combination water string must not be too far away, and otherwise can not separate and penetrate single water string.It is single
Water string spacing is 100mm, can smoothly be penetrated.It needs to avoid nest of tubes from reversing as far as possible in the process.
The present invention has the advantages that
1) it needs primary return that several groups pipeline is dragged to be decomposed into 9~12 original design, reduces and once go back to the amount of dragging and aperture
Size avoids pipeline winding, string hole, prevents road from collapsing and cracking.
2) on former egress hatch wall nest of tubes carry out two-time arrangment, and to needs pass through nest of tubes group clear distance, pull back out
Soil point to piping lane side wall minimum range, return drag the technical parameters such as tractive force, simulated mud to be designed, it is ensured that nest of tubes do not go here and there hole,
Road does not occur to settle and crack, and so that pipeline is returned hauling-out soil and is separated and is arranged by design idea.
It 3) is that single independent water string is changed to group's conjunction water string, and cooperates dilatory group by original design outlet casing tube
Pipe construction technique efficiently solves the easy seepy question in this position, and can will return the nest of tubes dragged and smoothly artificially penetrate group's conjunction
In water string.It is such as pulled using traditional group's pipe, single water string has seal ring, causes between single water string
Clear distance is at least there are two the distance of seal ring, at least 20cm, this requires that the pipeline separation distance 20cm to pull back, but
It having described above, tubing can not be separated into very much 20cm firmly, and combination water string is used to be connected by one piece of steel plate for sealing water,
Single casing distance can reach 10cm.
4) Directional Drilling inclination section is using no earthing construction method, make single-unit drilling rod by universal joint connect it is exposed outside, can
With the more accurate build curve for easily adjusting deflecting drilling rod, good basis is provided for committed step straightway drilling, is reduced
Difficulty of construction.
5) compared with the construction method of traditional no-digging drilling, cement mud-jack construction technology is increased, is walked according to pore
To setting-out cloth hole, madjack pipe is buried in nest of tubes two ends, and blocked with cement mortar, after reaching certain intensity, then is pressed
Slurry, can be effectively prevented roadbed subsidence and cracking.
Detailed description of the invention
Fig. 1 is major urban arterial highway two sides underground pipe gallery pipeline final routing schematic diagram.
Fig. 2 is electric power, telecommunication administration extraction plan view.
Fig. 3 is electric power, telecommunication line extraction sectional view.
Fig. 4 is that egress hatch casing original design diagram occurs.
Fig. 5 is egress hatch outlet casing tube structural schematic diagram in the present invention.
Fig. 6 is Directional Drilling planned course schematic diagram in the present invention.
Fig. 7 is flow chart of the invention.
Fig. 8 is inclination section drilling rod connection figure.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments:
As shown in Fig. 5~Fig. 7, the construction method of underground pipe gallery group's pipe no-dig technique directional traversing designed by the present invention, packet
Include following steps:
(1) original power, communication group's pipe are resolved into several group's pipe groups being made of 9 single tubes, and its array manner is 3
×3.Its every group pipe clear distance is adjusted to 500~800mm, using repeatedly the method dragged is crept into back, creeps into a dilatory group every time
Pipe is constructed.
(2) directional drilling for the first time: preparing mud, then directional drill test running and adjusts suitable construction parameter,
By planned course curve requirement bore pilot hole, set data control point every 3 meters on drilling-curve, and at any time to drilling track into
Row monitoring and adjustment, guarantee pilot hole is without departing from design pipeline geometric locus, and guaranteeing to bury a little is straightway to unearthed point, is made
Oblique segment limit drilling rod is exposed outside the soil body；
(3) pre- reaming: technique is expanded using multistage return, on the drilling rod that hauling pipe cheats one end, the reaming of Φ 600mm is first installed
Then device carries out reaming with drilling machine bar of pulling back, when reamer is dragged into the soil body, work until being dragged to Φ 600mm reamer into pipe
In hole, Φ 600mm reamer is removed, Φ 700mm, Φ 800mm reamer is loaded on, continues reaming, until pre- reaming is complete
At.
(4) group's pipe is laid: water string closes in setting underground pipe gallery group, single water string in group's water string
Spacing is only 100mm, after guaranteeing that nest of tubes hauls out soil, can carry out pipeline spaced apart arrangement according to design requirement, return and haul out soil
Pipeline group penetrates combined water proof casing, then pours egress hatch concrete, reaches better waterproof effect.Expand in last time
Returning for group's pipe is carried out when hole to drag, and drag by being fixed on the drilling machine of last time reaming wait returning group's pipe group for dragging, is utilized brill
Machine driving, which is used as back, drags tractive force.
Wherein, pull-back force tractive force Fmax=(F rub+F from), F rub the frictional resistance pipe of generation of being self-possessed in hole for pipeline
Viscous comprehensive frictional resistance of the road in hole, F are self-possessed in hole the frictional resistance of generation from pipeline；Unearthed point of pulling back is to piping lane side
Wall minimum range is 2m.
(5) draw pore mud jacking: dilatory pore mud jacking carries out drilling using corning machine and embedded madjack pipe is constructed, root
Layering mud jacking is carried out according to the control of the pore depth of fill.Layering mud jacking is exactly that a madjack pipe, middle part setting is arranged in the top of end
Two, one of madjack pipe, first depression, then middle part, last top is arranged in lower part.Because be have nest of tubes in duct, if regardless of
Cement grout is difficult to fill in layer duct.
The ratio of mud in the design cement slurry proportion is 0.5~1.0, optimum ratio 0.7.Too small mortar mobility compared with
Small, the property infused is poor, and subgrade strengthening effect is not achieved.Excessive then water is big, has larger impact to subgrade soils, and Seed harvest is shunk
Larger, slip casting anaphase effect is poor.Its bleeding rate is less than 2% after slurry bleeding maximum no more than 6%, mix 3 hours.24 hours
Inside absorbed again by slurry.
The fluidity of slurry is controlled to be controlled in 50s after 14~18s, mixing 30 minutes.
By experiment, appropriate swelling agent can be participated in slurry, but its swelling agent rate is less than 5%.After reducing slurries calculus
Gap is shunk, is added 5% cement expansive material when stirring, carries out configuration slurries in strict accordance with experiment proportion when stirring.
Using the invention, it can effectively solve that pipeline is more, easy leak, road settlement and opens at dilatory amount group's pipe big, through walls
The problems such as splitting, and the duration is greatly shortened, it reduces costs.
Detailed process of the invention as shown in the figure, wherein preparation of construction is including implementing corresponding entries before 1, construction；2, group
The detailed prospecting before project management department construction personnel constructs to scene is knitted, understands construction site landform, further verifying underground can
The geological condition of barrier, accurate elevation and the sub-surface that can will appear.3, construction site equipment put, the standard of route to be spread
It is standby.4, construction equipment detection and debugging, it is ensured that it is in good working state.5, it checks and verifies and adjust arrangement and method for construction.6, it applies
The preparation of the technical data such as specification needed for work, drawing, table.7, commencement report is submitted, preparation formally goes into operation.8, it resolves and applies
Work water electricity consumption.9, personnel prepare, equipment prepares.
Piping lane egress hatch concrete, which is constructed to group's bottom of the tube, to be specifically referred to: group's pipe is the concrete structure for being embedded in pipeline egress hatch
On, when pipeline time is dragged to the position of pipeline egress hatch, the combination water string for being embedded in pipeline egress hatch is first put on,
It is placed in again by designed elevation on the wall of pipeline egress hatch.If concrete is more than the bottom of combination water string, waterproof is combined
Casing just secures, and can not leave wall and go to recover the group's pipe dragged.
Entrance working pit is used to detect working conditions, the exports such as dilling angle and the rotation twisting of drilling rod and cheats (down tube
Hole) offer group's pipe enters the working pit in hole when being back to drag.The design of nest of tubes two-time arrangment, which refers to, resolves into several by 9~12 for nest of tubes
Group's pipe group of root single tube composition array.
The present invention has the advantages that
1) it needs primary return that several groups pipeline is dragged to be decomposed into 9~12 original design, reduces and once go back to the amount of dragging and aperture
Size avoids pipeline winding, string hole, prevents road from collapsing and cracking.
2) on former egress hatch wall nest of tubes carry out two-time arrangment, and to needs pass through nest of tubes group clear distance, pull back out
Soil point to piping lane side wall minimum range, return drag the technical parameters such as tractive force, simulated mud to be designed, it is ensured that nest of tubes do not go here and there hole,
Road does not occur to settle and crack, and so that pipeline is returned hauling-out soil and is separated and is arranged by design idea.
It 3) is that single individual jacket is changed to group's conjunction water string, and dilatory group's pipe is cooperated to apply by original design outlet casing tube
Work technique efficiently solves the easy seepy question in this position, and can will return the nest of tubes dragged and smoothly artificially penetrate group's conjunction waterproof
In casing.
4) Directional Drilling inclination section is using no earthing construction method, make single-unit drilling rod by universal joint connect it is exposed outside, can
With the more accurate build curve for easily adjusting deflecting drilling rod, good basis is provided for committed step straightway drilling, is reduced
Difficulty of construction.
5) compared with the construction method of traditional no-digging drilling, cement mud-jack construction technology is increased, is walked according to pore
To setting-out cloth hole, madjack pipe is buried in nest of tubes two ends, and blocked with cement mortar, after reaching certain intensity, then is pressed
Slurry, can be effectively prevented roadbed subsidence and cracking.
Protection scope of the present invention is not limited to the above embodiments, it is clear that those skilled in the art can be to this hair
It is bright to carry out various changes and deformation without departing from scope and spirit of the present invention.If these changes and deformation belong to power of the present invention
In the range of benefit requirement and its equivalent technologies, then the present invention is also intended to encompass including these changes and deformation.
Claims (9)
1. a kind of construction method of underground pipe gallery group pipe no-dig technique directional traversing, which comprises the following steps:
The grouping of the S1 groups of pipes: resolving into several group's pipe groups for being made of 9~12 single tubes array for original power, communication group's pipe, and
The clear distance of nest of tubes group that passes through to needs, returns and tractive force and simulated mud is dragged to join at unearthed point of pulling back to piping lane side wall minimum range
Number is designed；
S2 directional drilling: first pilot hole first is bored by planned course curve requirement, data monitoring is set on the geometric locus
Point, and guaranteeing to bury a little is straightway to unearthed point, deflecting segment limit drilling rod is exposed outside the soil body；
The pre- reaming of S3: technique is expanded to directional drilling progress reaming using multistage return；
S4 groups of pipe layings: it returns and drags first group's pipe group, and identical with group's pipe array manner group is arranged at underground pipe gallery
Water string is closed, group pipe group is sequentially passed through in the single casing of combination water string, combined water proof casing is fixed
The laying of group pipe can be completed；
S5 draws pore mud jacking: carrying out drilling using corning machine and embedded madjack pipe is constructed, according to pore depth of fill control
System carries out layering mud jacking, completes the construction of the first group pipe；
S6 repeats the construction that step S2-S5 is sequentially completed factor group pipe group.
2. the construction method of underground pipe gallery group pipe no-dig technique directional traversing according to claim 1, it is characterised in that: described
Clear distance between group's pipe group is 500~800mm；Tractive force Fmax=(F rub+F from), F rub generation of being self-possessed in hole for pipeline
Viscous comprehensive frictional resistance of the frictional resistance pipeline in hole, F is self-possessed in hole the frictional resistance of generation from pipeline；It pulls back out
Soil point to piping lane side wall minimum range is 2m.
3. the construction method of underground pipe gallery group pipe no-dig technique directional traversing according to claim 1, it is characterised in that: step
Data monitoring o'clock in s2 is arranged one every 3 meters.
4. the construction method of underground pipe gallery group pipe no-dig technique directional traversing according to claim 1, it is characterised in that: described
Connecting plate is rectangular configuration, and the aperture of the reaming is twice of connecting plate side length.
5. the construction method of underground pipe gallery group pipe no-dig technique directional traversing according to claim 1, it is characterised in that: described
Step s3 divides three-level to carry out reaming, and every grade of reaming aperture differs 100mm.
6. the construction method of underground pipe gallery group pipe no-dig technique directional traversing according to claim 1, it is characterised in that: described
The spacing of the single water string of same group pipe is 100mm in step s4.
7. the construction method of underground pipe gallery group pipe no-dig technique directional traversing according to claim 1, it is characterised in that: return and drag
Group's pipe group is fixed on the drilling machine of last time reaming when group's pipe group, drag as tractive force by the driving of drilling machine.
8. the construction method of underground pipe gallery group pipe no-dig technique directional traversing according to claim 1, it is characterised in that: described
The ratio of mud of cement slurry is 0.5~1.0 in simulated mud；Its bleeding after slurry bleeding maximum no more than 6%, mix 3 hours
Rate is less than 2%；The fluidity of slurry is controlled to be controlled in 50s after 14~18s, mixing 30 minutes.
9. the construction method of underground pipe gallery group pipe no-dig technique directional traversing according to claim 1, it is characterised in that: described
Group's pipe single group is 3 × 3 array group's pipe groups of 9 single tubes composition.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810834904.2A CN109024675B (en) | 2018-07-26 | 2018-07-26 | Construction method for trenchless directional crossing of underground pipe gallery group pipes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810834904.2A CN109024675B (en) | 2018-07-26 | 2018-07-26 | Construction method for trenchless directional crossing of underground pipe gallery group pipes |
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| CN109024675B CN109024675B (en) | 2020-10-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260052A (en) * | 2019-06-17 | 2019-09-20 | 中国一冶集团有限公司 | One kind laying group's pipe device and its application method at the piping lane egress hatch of both sides of the road |
| CN112923129A (en) * | 2021-01-21 | 2021-06-08 | 四川石油天然气建设工程有限责任公司 | Butt-joint type dragging pipe construction process and system for oil and gas pipelines |
| CN114607833A (en) * | 2022-03-09 | 2022-06-10 | 苏州城市地下综合管廊开发有限公司 | Vertical curve downward-penetrating construction method for rectangular jacking pipe meeting obstacle |
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| CN207053151U (en) * | 2017-08-20 | 2018-02-27 | 中国水利水电第七工程局有限公司 | A kind of pipe gallery cable line outlet arrangement |
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| DE20206800U1 (en) * | 2002-04-29 | 2002-08-22 | Laistner, Hermann, Dipl.-Ing., 73466 Lauchheim | Infrastructure Channel |
| WO2009077020A1 (en) * | 2007-12-19 | 2009-06-25 | Frank Dupre | Duct system for accommodating power cables |
| CN106351274A (en) * | 2016-09-30 | 2017-01-25 | 中国冶集团有限公司 | Hollow hole backfilling device and method for non-excavated directional drilling pipeline |
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| CN110260052A (en) * | 2019-06-17 | 2019-09-20 | 中国一冶集团有限公司 | One kind laying group's pipe device and its application method at the piping lane egress hatch of both sides of the road |
| CN112923129A (en) * | 2021-01-21 | 2021-06-08 | 四川石油天然气建设工程有限责任公司 | Butt-joint type dragging pipe construction process and system for oil and gas pipelines |
| CN112923129B (en) * | 2021-01-21 | 2022-10-14 | 四川石油天然气建设工程有限责任公司 | Butt-joint type dragging pipe construction process and system for oil and gas pipelines |
| CN114607833A (en) * | 2022-03-09 | 2022-06-10 | 苏州城市地下综合管廊开发有限公司 | Vertical curve downward-penetrating construction method for rectangular jacking pipe meeting obstacle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109024675B (en) | 2020-10-23 |
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