CN106638668B - System and its construction method are underpined between subterranean communication road and power pipeline - Google Patents
System and its construction method are underpined between subterranean communication road and power pipeline Download PDFInfo
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- CN106638668B CN106638668B CN201611011046.9A CN201611011046A CN106638668B CN 106638668 B CN106638668 B CN 106638668B CN 201611011046 A CN201611011046 A CN 201611011046A CN 106638668 B CN106638668 B CN 106638668B
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- power pipeline
- pipeline
- underpining
- pile
- construction
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/48—Foundations inserted underneath existing buildings or constructions
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Foundations (AREA)
Abstract
The present invention relates to underpin system and its construction method between subterranean communication road and power pipeline, the construction method includes the following steps: the two sides construction pipeline building enclosure in the power pipeline, and the bottom of the pipeline building enclosure is located at the top in subterranean communication road to be onstructed；In the power pipeline two sides construction underpin stand column pile, positioned at underpined described in the same side stand column pile be set to the subterranean communication road to be onstructed two sides；The earthwork at stand column pile is underpined described in excavation to expose the pile crown for underpining stand column pile, and in mounting structures of constructing on the pile crown；And in Construction Support on the mounting structures in the underpinning structure of the power pipeline bottom.The present invention carries out strong support to power pipeline using underpinning structure, prevents power pipeline from generating excessive amount of deflection or sedimentation, it is ensured that under construction ground when communication channel, reduces the influence to power pipeline, it is ensured that construction safety prevents safety accident.
Description
Technical field
The present invention relates to the realm of building construction, underpining system and its apply between a kind of subterranean communication road and power pipeline is refered in particular to
Work method.
Background technique
In recent years, due to the development and utilization of the underground space, the structure work of existing pipeline and highway is worn under occurring largely
Journey.Busy highway and normal construction underground utilities are being runed in the following, mostly using dark when building the underground engineerings such as the channel passed through
The construction method of digging.Higher for settlement request if the subterranean communication road built is close to power pipeline, sedimentation is no more than
2cm, settles or deforms excessive, and it is impaired to occur cable, is easy to because voltage is very big to surrounding metal object hair
Raw discharge process generates electric arc, spark and on fire or discharge-induced explosion even occurs, causes bad social influence and safety accident.
Current existing connection pipeline construction method is not able to satisfy requirement of the power pipeline to sedimentation still, is unable to ensure in electric power
The construction safety in crossing construction subterranean communication road below pipeline.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, the support between a kind of subterranean communication road and power pipeline is provided
System and its construction method are changed, the construction method for solving subterranean communication road in the prior art is not able to satisfy power pipeline still to sedimentation
Requirement, the problem of being unable to ensure the construction safety in crossing construction subterranean communication road below power pipeline.
Realizing the technical solution of above-mentioned purpose is:
The present invention provides the construction method for underpining system between a kind of subterranean communication road and power pipeline, for construct from
The power pipeline is protected in support when the subterranean communication road passed through below power pipeline, and the construction method includes the following steps:
In the two sides construction pipeline building enclosure of the power pipeline, the bottom of the pipeline building enclosure is located to be onstructed
Subterranean communication road top；
In the two sides of the power pipeline, construction underpins stand column pile, and the bottom for underpining stand column pile is protruded into described to be onstructed
Subterranean communication road bottom plate hereinafter, being located at the stand column pile that underpins of the same side set on the subterranean communication road to be onstructed
Two sides；
The earthwork at stand column pile is underpined described in excavation with expose it is described underpin the pile crown of stand column pile, and applied on the pile crown
Work mounting structures；And
In Construction Support on the mounting structures in the underpinning structure of the power pipeline bottom.
The present invention carries out strong support to power pipeline using underpinning structure, prevents power pipeline from generating excessive amount of deflection
Or sedimentation, it is ensured that under construction ground when communication channel, reduce the influence to power pipeline, it is ensured that construction safety prevents safety accident.
It is reinforced using the soil body of the pipeline building enclosure to power pipeline two sides, to power pipeline two when reducing the construction of subterranean communication road
The disturbance of the side soil body, and then avoid bringing power pipeline damage.Advantageous branch is provided to underpinning structure using stand column pile is underpined
Support, it can be ensured that the effective protection of power pipeline, underpin stand column pile and underpinning structure is formed by the system of underpining, support is steady
It is effectively protected Gu being played to power pipeline.
The construction method for underpining system between subterranean communication road and power pipeline of the present invention further improvement lies in that, in institute
Construction Support is stated on mounting structures in the underpinning structure of the power pipeline bottom, comprising:
The soil body for digging the power pipeline bottom is drawn to form hole according to the size for underpining supporting member, is underpined described
Supporting member is inserted in described hole to underpin support member support described in enabling in the bottom of the power pipeline, described to underpin
Supporting member, which is used, jumps one method construction every one；
In setting up underpinning structure beam on the mounting structures of the same side, the underpinning structure beam, which is placed in, described underpins supporting member
On；
The underpinning structure beam is fixedly connected with the supporting member that underpins.
The construction method for underpining system between subterranean communication road and power pipeline of the present invention further improvement lies in that, also wrap
It includes: underpining pad between supporting member and the power pipeline described in each and set support plate；
Column is underpined in the bottom interval support of the underpinning structure beam, the bottom for underpining column is set to be onstructed
Subterranean communication road top plate on.
The construction method for underpining system between subterranean communication road and power pipeline of the present invention further improvement lies in that, in institute
State mounting structures of constructing on pile crown, comprising:
Construction Support bracket on the pile crown that stand column pile is underpined described in the power pipeline side；
In the pre-buried connecting plate in top of the support bracket；
Construction Support cushion cap on the pile crown that stand column pile is underpined described in the power pipeline other side；
In the pre-buried connecting plate in top of the support cushion cap.
The construction method for underpining system between subterranean communication road and power pipeline of the present invention further improvement lies in that, construction
Pipeline building enclosure, comprising:
One section of earth-retaining steel sheet pile of construction, the earth-retaining are moved towards along the power pipeline in the side of the power pipeline
The length of steel sheet pile is greater than the width in subterranean communication road to be onstructed；
Construction Larsen steel sheet pile, the Larsen steel are moved towards along the power pipeline in the other side of the power pipeline
Sheet pile is set to the two sides in subterranean communication road to be onstructed.
The present invention also provides system is underpined between a kind of subterranean communication road and power pipeline, for constructing from power pipeline
The power pipeline is protected in support when the subterranean communication road that lower section passes through, and the system that underpins includes:
It is inserted in the pipeline building enclosure of the power pipeline two sides, the bottom of the pipeline building enclosure is located to be onstructed
Subterranean communication road top；
It is inserted in the stand column pile that underpins of the power pipeline two sides, the bottom for underpining stand column pile is protruded into described to be onstructed
Subterranean communication road bottom hereinafter, be located at the same side underpin stand column pile be set to the subterranean communication road to be onstructed two
Side；
It is formed in the mounting structures underpined on the pile crown of stand column pile；And
It is erected on the mounting structures and is supported in the underpinning structure of the power pipeline bottom.
Between subterranean communication road and power pipeline of the present invention underpin system further improvement lies in that, the underpinning structure packet
It includes:
Supporting member is underpined, the bottom of the power pipeline is inserted in the soil body of the power pipeline bottom and is supported in
Portion, the supporting member that underpins use the method for jumping one every one to construct；
It is erected on the mounting structures of the same side and underpins structural beams, the underpinning structure beam is placed in described underpin
On supporting member, and it is fixedly connected with the supporting member that underpins.
Between subterranean communication road and power pipeline of the present invention underpin system further improvement lies in that, the underpinning structure is also
Include:
Pad is set on the support plate underpined between supporting member and the power pipeline described in each；
Interval is supported in the column that underpins in underpinning structure beam bottom portion, and the bottom for underpining column is set to be onstructed
On the top plate in subterranean communication road.
Between subterranean communication road and power pipeline of the present invention underpin system further improvement lies in that, the mounting structures packet
It includes:
Pour the support bracket underpined on the pile crown of stand column pile for being formed in the power pipeline side, the branch
Connecting plate is embedded at the top of support bracket；
The support cushion cap underpined on the pile crown of stand column pile for being formed in the power pipeline other side is poured, it is described
Connecting plate is embedded at the top of support cushion cap.
Between subterranean communication road and power pipeline of the present invention underpin system further improvement lies in that, the pipeline goes along with sb. to guard him knot
Structure includes:
It is inserted in the power pipeline side and moves towards the earth-retaining steel sheet pile laid, the earth-retaining steel along the power pipeline
The length of sheet pile is greater than the width in subterranean communication road to be onstructed；
It is inserted in the power pipeline other side and moves towards the Larsen steel sheet pile laid, the Larsen along the power pipeline
Steel sheet pile is set to the two sides in subterranean communication road to be onstructed.
Detailed description of the invention
The top view that underpins system support power pipeline of the Fig. 1 between subterranean communication road of the present invention and power pipeline.
The cross-sectional view that underpins system of the Fig. 2 between subterranean communication road of the present invention and power pipeline.
A kind of embodiment of the mounting structures that underpin in system of the Fig. 3 between subterranean communication road of the present invention and power pipeline
Structural schematic diagram.
Another embodiment party of the mounting structures that underpin in system of the Fig. 4 between subterranean communication road of the present invention and power pipeline
The structural schematic diagram of formula.
The structural schematic diagram that underpins underpinning structure in system of the Fig. 5 between subterranean communication road of the present invention and power pipeline.
Fig. 6 is the a-a cross-sectional view in Fig. 5.
Fig. 7 is the b-b cross-sectional view in Fig. 5.
Fig. 8 is the c-c cross-sectional view in Fig. 5.
Fig. 9 underpining in system between subterranean communication road of the present invention and power pipeline underpins supporting member support power pipe
The structural schematic diagram of line.
Figure 10 underpining between subterranean communication road of the present invention and power pipeline underpins column and subterranean communication road in system
Attachment structure schematic diagram.
Figure 11 underpining between subterranean communication road of the present invention and power pipeline underpins the top of column structure in system is shown
It is intended to.
Underpin in system underpinning structure beam of the Figure 12 between subterranean communication road of the present invention and power pipeline is located at mounting structures
The structural schematic diagram at place.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
The present invention provides underpining between a kind of subterranean communication road of the present invention and power pipeline underpined in system column and its
Construction method provides stable support for power pipeline, prevents electricity when suitable for constructing across the subterranean communication road of power pipeline
Solenoid line generates excessive amount of deflection or sedimentation, it is ensured that construction safety also ensures that the safety of power pipeline, avoids the hair of safety accident
It is raw.With reference to the accompanying drawing between subterranean communication road of the present invention and power pipeline underpin system and its construction method is illustrated.
The system that underpins between subterranean communication road of the present invention and power pipeline is illustrated below.
As depicted in figs. 1 and 2, subterranean communication road and power pipeline of the present invention underpin system, for constructing from power pipe
Support protection power pipeline 20 when the subterranean communication road 10 that the lower section of line 20 passes through, it includes pipeline building enclosure that this, which underpins system,
31, stand column pile 32, mounting structures 33 and underpinning structure 34 are underpined, pipeline building enclosure 31 is plugged in the two of power pipeline 20
Side, and pipeline building enclosure 31, along the setting of moving towards of power pipeline 20, the bottom of pipeline building enclosure 31 is located to be onstructed
The top in subterranean communication road 10；The two sides that stand column pile 32 is inserted in power pipeline 20 are underpined, which stretches
Enter the bottom plate 102 in subterranean communication road 10 to be onstructed hereinafter, the stand column pile 32 that underpins for being located at the same side is set to underground to be onstructed
The two sides of communication channel 10, avoid underpining stand column pile 32 and have an impact to the construction of underground communication channel 10.Mounting structures 33 are formed in
On the pile crown for underpining stand column pile 32, underpinning structure 34 is erected on mounting structures 33 and is supported in the bottom of power pipeline 20.
The system utilization that underpins of the invention is inserted into 10 bottom of the subterranean communication road stand column pile 32 below that underpins as power pipe
Line 20 provides strong support, recycles the mounting structures 33 being set to underpin on stand column pile 32 and underpinning structure 34 support electricity
Solenoid line 20 plays the role of being effectively protected to power pipeline 20, prevents the sedimentation or amount of deflection of power pipeline 20, it is ensured that power pipe
The safety of line 20 avoids the generation of safety accident.It is of the invention underpin system formed in the bottom of power pipeline 20 it is stable and firm
Support system, and two sides for underpining stand column pile 32 and being crossed on subterranean communication road 10 in the system will not influence subterranean communication
The construction in road 10.
As the better embodiment for underpining system of the invention, in conjunction with shown in Fig. 5 and Fig. 6, underpinning structure 34 includes
Supporting member 341 and underpinning structure beam 342 are underpined, supporting member 341 is underpined and is inserted in the soil body of 20 bottom of power pipeline simultaneously
It is supported in the bottom of power pipeline 20, supporting member 341 is underpined using the method construction for jumping one every one, underpins supporting member 341
Being inserted in the soil body of 20 bottom of power pipeline side by side, underpins the setting of the interval of supporting member 341, if supporting member will be underpined
341 be divided into two groups with odd and even number, refers to first sequentially to construct every one method of jump and wherein underpins supporting member for one group
341, then sequentially construct another group and underpin supporting member 341.Underpinning structure beam 342 is erected on the mounting structures positioned at the same side
On 33, underpinning structure beam 342, the bottom of the underpinning structure beam 342 are placed on the mounting structures 33 of 20 the same side of power pipeline
It is also placed in and underpins on supporting member 341, and be fixedly connected with supporting member 341 is underpined.Electricity is supported using supporting member 341 is underpined
Solenoid line 20, and underpin supporting member 341 and be also fixedly connected with underpinning structure beam 342, underpinning structure beam 342 is placed in mounting structures
On 33, stable and firm force structure is formed, firm support is provided.
As the better embodiment for underpining system of the invention, for the stress equalization for ensuring to underpin supporting member 341
Property and overall security, underpinning structure 34 further include pad be set to each underpin between supporting member 341 and power pipeline 20,
Increase the forced area between power pipeline 20 using support plate, it is ensured that underpinning structure 34 can be played really and underpin power pipeline
20 purpose, really plays a protective role.As shown in Figure 1, for prevent the intermediate stress of underpinning structure beam 342 generate amount of deflection after under
It is recessed, underpinning structure 34 further include interval be supported in 342 bottom of underpinning structure beam underpin column 344, underpin the bottom of column 344
On the top plate 101 in subterranean communication road 10 to be onstructed, as shown in connection with fig. 10, the top plate 101 in subterranean communication road 10 is applied
When work is completed, connector 3442 is anchored into the position for underpining column 344,3442 bottom of connector is equipped with vertical dowel, the anchor
Muscle anchors into top plate 101, and the top of connector 3442 is fixed in the bottom for underpining column 344, at the bottom for underpining column 344
Portion is enclosed equipped with stiffener 3441, which is fixedly connected with connector 3442.In conjunction with shown in Figure 11, column 344 is underpined
Top be equipped with supporting plate 3443,3443 support of supporting plate is in the bottom of underpinning structure beam 342, on the top for underpining column 344
Portion is also enclosed equipped with stiffener 3441, which is fixedly connected with supporting plate 3443.
As the better embodiment for underpining system of the invention, as shown in figure 9, being inserted supporting member 341 will be underpined
Enter to before 20 bottom of power pipeline, the corner of the bottom of power pipeline 20 is wrapped up, electricity is coated using angle wrapping structure 35
Two right angles of the bottom of solenoid line 20, the angle wrapping structure 35 preferably use angle steel.It can be effective by setting angle wrapping structure 35
It avoids underpining supporting member 341 and is excessively concentrated in the active force in 20 corner of power pipeline and lead to pipeline breaking, angle wrapping structure 35
Play the role of 20 structural integrity of effective protection power pipeline.
As the better embodiment for underpining system of the invention, as shown in Figure 5 and Figure 6, underpin supporting member 341 with
The connection of underpinning structure beam 342, in the outside of underpinning structure beam 342 using 342 bottom of underpinning structure beam in underpining supporting member
341 two sides open up connecting hole, are arranged using U-shaped hoop 345 and underpin supporting member 341 and pass through connecting hole then to pass through nut tight
It is fixed in underpinning structure beam 342.As shown in connection with fig. 8, pad is equipped with gasket 348 between nut and underpinning structure beam 342.Such as Fig. 7 and
Shown in Fig. 8, it is connect using welding manner with supporting member 341 is underpined in the inside of underpinning structure beam 342, utilizes dowel 347
It is bent into U-shaped and is set in and underpins on supporting member 341, the then vertical bending in U-shaped 347 top of dowel is placed in underpinning structure
The top of beam 342, and be welded and fixed with the top of underpinning structure beam 342, it is welded and fixed using the mode of being fully welded.
As the better embodiment for underpining system of the invention, to improve the structural strength for underpining supporting member 341,
Supporting member 341 is underpined using steel pipe, and steel duct pours the pea gravel concreten for being inoculated with C20, and is sealed at steel pipe both ends with steel plate
It blocks up.
As the better embodiment for underpining system of the invention, as shown in Figures 2 to 4, mounting structures 33 include pouring
The support bracket 331 being formed on the pile crown for underpining stand column pile 32 of 20 side of power pipeline is built, on the top of support bracket 331
Portion is embedded with connecting plate 3311, and the connecting plate 3311 is for being connected and fixed underpinning structure beam 342.Mounting structures 33 further include pouring
The support cushion cap 332 being formed on the pile crown for underpining stand column pile 32 of 20 other side of power pipeline, on the top of support cushion cap 332
Portion is embedded with connecting plate 3321, and the connecting plate 3321 is for being connected and fixed underpinning structure beam 342.Support bracket 331 and support are held
Platform 332 is concrete structure, and the reinforcing bar 3312 of support bracket 331 is fixedly connected with the reinforcing bar 321 for underpining stand column pile 32, it is ensured that is poured
The support bracket 331 built is connected with stand column pile 32 is underpined.It supports the reinforcing bar 3322 of cushion cap 332 and underpins the steel of stand column pile 32
Muscle 321 is fixedly connected, it is ensured that the support cushion cap 332 poured is connected with stand column pile 32 is underpined.In 331 He of Construction Support bracket
When supporting cushion cap 332, the pile crown for underpining stand column pile 32 is first abolished, then in binding support bracket 331 and support 332 reinforcing bar of cushion cap
And it pours and to be formed.
As the better embodiment for underpining system of the invention, the construction of supporting member 341 is underpined for convenience,
Then the side earth excavation of power pipeline 20 will be poured to 341 bottom of supporting member or less at least 400mm is underpined after levelling of the land
C20 plain concrete cushion layer is built, the thickness of bed course is more than or equal to 100mm to carry out underpining branch using bed course as construction operation platform
Support the construction of component 341.
As the better embodiment for underpining system of the invention, as depicted in figs. 1 and 2, pipeline building enclosure 31 is wrapped
The earth-retaining steel sheet pile 311 for being inserted in 20 side of power pipeline and moving towards to lay along power pipeline 20 is included, further includes being inserted in electric power
20 other side of pipeline simultaneously moves towards the Larsen steel sheet pile 312 laid along power pipeline 20, which is set to be onstructed
The two sides in subterranean communication road 10.Earth-retaining steel sheet pile 311 overlaps to be formed in length and breadth using I-steel, is reduced using earth-retaining steel sheet pile 311
Disturbance of the construction in subterranean communication road 10 to the soil body of 20 side of power pipeline, avoids bringing damage to town road and buried pipeline
It is bad.For preventing when construction underpins stand column pile 32, mud penetrates into power pipeline 20 Larsen steel sheet pile 312, underpins column
Stake 32 uses high-pressure rotary stake.
As described in Figure 12, right on underpinning structure beam 342 in order to further strengthen the structural strength of underpinning structure beam 342
Answer the part of mounting structures 33 that floor 3421 is set, underpinning structure beam 342 uses I-steel, and floor 3421 is inserted in I-steel
Two sides are simultaneously fixedly connected with web and two upper and lower flange plates.
The construction method for underpining system between subterranean communication road of the present invention and power pipeline is illustrated below.
As depicted in figs. 1 and 2, the construction method for underpining system between subterranean communication road and power pipeline of the invention is used
The support protection power pipeline 20 when the subterranean communication road 10 that construction passes through below power pipeline 20, construction method include as follows
Step:
In the two sides construction pipeline building enclosure 31 of power pipeline 20, the bottom of pipeline building enclosure 31 is located to be onstructed
The top in subterranean communication road 10, to avoid the construction for interfering subterranean communication road 10；
In the two sides of power pipeline 20, construction underpins stand column pile 32, and underground to be onstructed is protruded into the bottom for underpining stand column pile 32
The bottom plate 102 of communication channel 10 is hereinafter, be located at the two sides for underpining stand column pile 32 and being set to subterranean communication road 10 to be onstructed of the same side；
Excavation underpins the earthwork at stand column pile 32 to expose the pile crown for underpining stand column pile 32, and in support knot of constructing on pile crown
Structure 33；And
In Construction Support on mounting structures 33 in the underpinning structure 34 of 20 bottom of power pipeline.
Construction method of the invention carries out strong support to power pipeline using underpinning structure, prevents power pipeline from generating
Excessive amount of deflection or sedimentation, it is ensured that under construction ground when communication channel, reduce the influence to power pipeline, it is ensured that construction safety, Du
Exhausted safety accident.It is reinforced using the soil body of the pipeline building enclosure to power pipeline two sides, when reducing the construction of subterranean communication road
Disturbance to power pipeline soil at both sides, and then avoid bringing power pipeline damage.Using underpining stand column pile to underpinning structure
There is provided advantageous support, it can be ensured that the effective protection of power pipeline, underpin stand column pile and be formed by with underpinning structure and underpin
System, support is firm, plays and is effectively protected to power pipeline.
Construction pipeline building enclosure includes:
As depicted in figs. 1 and 2, one section of earth-retaining steel plate of construction is moved towards along power pipeline 20 in the side of power pipeline 20
Stake 311, the length of earth-retaining steel sheet pile 311 are greater than the width in subterranean communication road 10 to be onstructed；In the other side of power pipeline 20
Construction Larsen steel sheet pile 312 is moved towards along power pipeline 20, Larsen steel sheet pile 312 is set to subterranean communication road 10 to be onstructed
Two sides.According to design requirement and on-site actual situations is gone along with sb. to guard him, first construct earth-retaining steel sheet pile 311 and Larsen steel sheet pile 312, earth-retaining steel
Sheet pile 311 is overlapped in length and breadth using No. 14 I-steel, and effective length is 4m (3.5m), and the main purpose of fashioned iron earth-retaining steel sheet pile is arranged
Be reduce the disturbance to the 20 side soil body of power pipeline of foundation pit and structure construction in subterranean communication road 10, and to town road,
Buried pipeline brings damage.To prevent when underpining stand column pile 32 (high-pressure rotary jet grouting pile) construction of each 10 two sides of subterranean communication road,
Mud penetrates into power pipeline and other pipelines, and on the inside of power pipeline, III type Larsen steel sheet pile of a row, steel sheet pile buried depth is arranged
9m, wide 400mm, high 170mm, thick 15.5mm go along with sb. to guard him design in 10 two sides of subterranean communication road and 8 width, each subterranean communication are respectively arranged
16 width are respectively arranged in road.After the completion of section steel plate pile driving construction, then carry out the construction of Larsen steel sheet pile.
Need to carry out earth excavation, backfill after the completion of earth-retaining steel sheet pile 311 and Larsen steel sheet pile 312, it is contemplated that power pipe
Line 20 protects the requirement to water-stop curtain and building enclosure equipment fleet place, avoids to place upper layer earth excavation, backfill
Cause soil property loose, pile foundation, bracing engineering had an impact, first carry out subterranean communication road 10 water-stop curtain construction with underpin it is vertical
The construction of stanchion 32, then carry out the construction of the engineering pile in subterranean communication road 10, cast-in-situ bored pile foundation pit enclosure.
Water-stop curtain and after the completion of underpining stand column pile 32, before 20 liang of side dumping soil of power pipeline, to prevent power pipeline 20
The direct-buried cable on top is damaged, and the direct-buried cable at subterranean communication road position is first dug out exposure, Utilities Electric Co. using artificial
After checking that confirmation is errorless, direct-buried cable support bracket, the U-shaped branch that support bracket is welded using 12# channel steel, 8# channel steel are set up
Support frame, support bracket clipping room is away from 3 meters.
As shown in Figures 2 to 4, in mounting structures of constructing on pile crown, comprising:
The Construction Support bracket 331 on the pile crown for underpining stand column pile 32 of 20 side of power pipeline；In support bracket 331
The pre-buried connecting plate 3311 in top；The Construction Support cushion cap on the pile crown for underpining stand column pile 32 of 20 other side of power pipeline
332；In the pre-buried connecting plate 3321 in top of support cushion cap 332.After direct-buried cable is hung up properly using support bracket, first in power pipe
Two side dumping soil of line is excavated to support bracket bottom absolute altitude and support cushion cap bottom absolute altitude position, then abolishes and underpins column pile head,
Power pipeline side is supported bracket, steel plate construction；It carries out underpining stand column pile concrete support in the power pipeline other side and hold
After the completion of platform construction and the installation of pre-embedded steel slab, support bracket and support bearing platform construction, bracket, cushion cap concrete are carried out immediately
Maintenance.Supporting bracket 331 and support cushion cap 332 is concrete structure, supports the reinforcing bar 3312 of bracket 331 and underpins stand column pile 32
Reinforcing bar 321 be fixedly connected, it is ensured that the support bracket 331 poured is connected with stand column pile 32 is underpined.Support the steel of cushion cap 332
Muscle 3322 is fixedly connected with the reinforcing bar 321 for underpining stand column pile 32, it is ensured that the support cushion cap 332 poured is linked to be with stand column pile 32 is underpined
One.In Construction Support bracket 331 and support cushion cap 332, the pile crown for underpining stand column pile 32 is first abolished, is then supported in binding
Bracket 331 and support 332 reinforcing bar of cushion cap simultaneously pour to be formed.
As shown in Figure 1, Figure 2 and shown in Fig. 5, in Construction Support on mounting structures in the underpinning structure of power pipeline bottom, comprising:
The soil body for digging 20 bottom of power pipeline is drawn to form hole according to the size for underpining supporting member 341, will underpin branch
Support component 341 is inserted in hole to enable the bottom for underpining supporting member 341 and being supported in power pipeline 20, underpins supporting member
341 using the method construction for jumping one every one；In setting up underpinning structure beam 342, underpinning structure beam on the mounting structures 33 of the same side
342 are placed in and underpin on supporting member 341；Underpinning structure beam 342 is fixedly connected with supporting member 341 is underpined.Underpin support
Being inserted in the soil body of 20 bottom of power pipeline side by side of component 341 underpins the setting of the interval of supporting member 341, if branch will be underpined
It supports component 341 and with odd and even number is divided into two groups, refer to first sequentially to construct every one method of jump and wherein underpin support for one group
Component 341, then sequentially construct another group and underpin supporting member 341.Underpinning structure beam 342 is erected on the support positioned at the same side
In structure 33, underpinning structure beam 342 is placed on the mounting structures 33 of 20 the same side of power pipeline, the underpinning structure beam 342
Bottom, which is also placed in, to be underpined on supporting member 341, and is fixedly connected with supporting member 341 is underpined.Using underpining supporting member 341
Power pipeline 20 is supportted, and underpins supporting member 341 and is also fixedly connected with underpinning structure beam 342, underpinning structure beam 342 is placed in support
In structure 33, stable and firm force structure is formed, firm support is provided.
When installation underpins supporting member 341, first the earth excavation for underpining 341 installation region side of supporting member is extremely held in the palm
341 bottom of supporting member or less at least 400mm is changed, which is placed within pipeline building enclosure, levelling of the land after-pouring
C20 plain concrete cushion layer (surface press polish), thickness >=100mm, when in place, concreting intensity reaches 70% or more, and energy
After satisfaction underpins 341 execution conditions of supporting member, carries out underpining the construction of supporting member 341 immediately, constructed and made using cushioning effect
Industry platform.Underpin supporting member 341 and use 108 × 10 seamless steel pipe of Φ, spacing 800,1000mm (underpin above stand column pile and
Outside is 1000mm, inside 800mm), it in addition considers harmony, the overall security of power pipeline stress, can hold in the palm
That changes supporting member 341 is arranged support plate with power pipeline contact site, which uses 300 × 10 steel plates, enhances electric power
Pipeline underpins forced area, it is ensured that the purpose for underpining power pipeline can really be played by underpining supporting member 341, really play guarantor
The effect of shield.Supporting plate pad is located at each and underpins between supporting member 341 and power pipeline 20, which is strip steel
Plate.
Before underpining supporting member 341 and installing, first according to design drawing is gone along with sb. to guard him, put further according to the position of power pipeline
Line positioning carries out the groove of hand excavation's underpinning structure beam 342, the width of groove, length in power pipeline two sides by position line
Degree, should meet the installation of underpinning structure beam 342, operation requires, and also to meet and underpin supporting member 341 requirement is welded and fixed；
After underpinning structure beam channel excavation, it is necessary to H400 × 400 × 13 × 21 section steel beams are first set up, at the intermediate position of section steel beam by Φ
108 × 10 seamless steel pipe columns are welded and fixed with girder steel, recessed after preventing girder steel stress from generating degree of disturbing；Due to power pipeline west side
Close to the buried fuel gas conduit of municipal administration, running water pipe, fire extinguisher canvas hose, storm sewer etc., so the position of underpinning structure beam is fairly small, because
This is installed, and require the both ends of underpinning structure beam when carrying out the lifting of underpinning structure beam and installation after first should determining position
With the pre-buried connecting plate of support cushion cap or support bracket, it is necessary to firm welding.
It underpins the installation crescent spade of supporting member 341 and takes the side for drawing digging installation by root every a jump one from subterranean communication road
Method, before underpining the installation of supporting member 341, it is desirable that underpining supporting member 341 must be strictly perfused in steel pipe by design requirement carefully
Stone concrete fill reality after using plugging plate carry out firm welding, take with underpin with tracking carry out welding installation method.
As shown in figure 9, the bottom corner Liang Ge of power pipeline 20 is wrapped up using angle wrapping structure 35, angle wrapping structure 35 is adopted
With 18# angle steel, excessively concentrates to avoid active force of the supporting member 341 in 20 corner portion of power pipeline is underpined and cause pipeline broken
It splits.
After the installation of underpinning structure beam, immediately the supporting member that underpins put in advance is welded and is bolted
(being connected by screw bolts on the outside of underpinning structure beam, inside uses and is welded and fixed).It, must before underpining supporting member and being connected and fixed
Must adjustment good position, size, and require to be blocked with steel plate underpining supporting member both ends, and it is thin to pour in pipe C20 in advance
Stone concrete reaches 70% or more to pipe inner concrete intensity, can carry out underpining supporting member installation,
As shown in Fig. 5 to Fig. 8, the connection of supporting member 341 Yu underpinning structure beam 342 is underpined, in underpinning structure beam 342
Outside opens up connecting hole in the two sides for underpining supporting member 341 using 342 bottom of underpinning structure beam, is arranged support using U-shaped hoop 345
It changes supporting member 341 and then passes through nut across connecting hole and be anchored on underpinning structure beam 342.As shown in connection with fig. 8, in nut and
Pad is equipped with gasket 348 between underpinning structure beam 342.Using welding manner and support structure is underpined in the inside of underpinning structure beam 342
Part 341 connects, and is bent into U-shaped using dowel 347 and is set in and underpins on supporting member 341, then the U-shaped dowel 347
Top vertically bends the top for being placed in underpinning structure beam 342, and is welded and fixed with the top of underpinning structure beam 342, using being fully welded
Mode is welded and fixed.
As shown in Figure 1, Figure 2, shown in Figure 10 and Figure 11, after the completion of underpinning structure beam 342 is constructed, at 342 bottom of underpinning structure beam
Portion's construction underpins column 344, which stays at the bottom of underpinning structure beam 342, underpins column 344
Bottom be set to subterranean communication road 10 to be onstructed top plate 101 on.It is uniformly arranged in the lower section of each underpinning structure beam 342
Two underpin column 344.It underpins 344 lower part of column to be fixedly connected with the top plate 101 in subterranean communication road 10, top and underpinning structure
Beam 342 is welded and fixed.When the construction of top plate 101 in subterranean communication road 10 is completed, connector is anchored into the position for underpining column 344
3442,3442 bottom of connector is equipped with vertical dowel, which anchors into top plate 101, and the bottom for underpining column 344 is fixed
In the top of connector 3442, enclose in the bottom for underpining column 344 equipped with stiffener 3441, the stiffener 3441 and connector
3442 are fixedly connected.In conjunction with shown in Figure 11, underpin column 344 top be equipped with supporting plate 3443,3443 support of supporting plate in
The bottom of underpinning structure beam 342 is also enclosed at the top for underpining column 344 equipped with stiffener 3441, the stiffener 3441 and support
Plate 3443 is fixedly connected.
As described in Figure 12, right on underpinning structure beam 342 in order to further strengthen the structural strength of underpinning structure beam 342
Answer the part of mounting structures 33 that floor 3421 is set, underpinning structure beam 342 uses I-steel, and floor 3421 is inserted in I-steel
Two sides are simultaneously fixedly connected with web and two upper and lower flange plates.
Having the beneficial effect that for system and its construction method is underpined between subterranean communication road and power pipeline of the present invention
Advantageous safety guarantee is provided for the construction in subterranean communication road by underpining system, can be provided for power pipeline surely
Fixed supporting role avoids the generation of the safety accident of power pipeline, it is ensured that construction safety.
Strong support is carried out to power pipeline using underpinning structure, prevents power pipeline from generating excessive amount of deflection or heavy
Drop, it is ensured that under construction ground when communication channel, reduce the influence to power pipeline, it is ensured that construction safety prevents safety accident.
Advantageous support is provided to underpinning structure using stand column pile is underpined, it can be ensured that the effective protection of power pipeline,
It underpins stand column pile and underpinning structure is formed by the system of underpining, support is firm, plays and is effectively protected to power pipeline.
It is reinforced using the soil body of the pipeline building enclosure to power pipeline two sides, to electricity when reducing the construction of subterranean communication road
The disturbance of solenoid line soil at both sides, and then avoid bringing power pipeline damage.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this
Invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (10)
1. the construction method for underpining system between a kind of subterranean communication road and power pipeline is worn below power pipeline for constructing
The power pipeline is protected in support when the subterranean communication road crossed, which is characterized in that the construction method includes the following steps:
It is located at ground to be onstructed in the bottom of the two sides construction pipeline building enclosure of the power pipeline, the pipeline building enclosure
The top of lower communication channel；
In the two sides of the power pipeline, construction underpins stand column pile, and the ground to be onstructed is protruded into the bottom for underpining stand column pile
The bottom plate of lower communication channel is hereinafter, be located at two for underpining stand column pile and being set to the subterranean communication road to be onstructed of the same side
Side；
The earthwork at stand column pile is underpined described in excavation to expose the pile crown for underpining stand column pile, and hold in construction on the pile crown
Holder structure；And
In Construction Support on the mounting structures in the underpinning structure of the power pipeline bottom, comprising:
The soil body for digging the power pipeline bottom is drawn to form hole according to the size for underpining supporting member, underpins support for described
Component is inserted in described hole to underpin support member support described in enabling in the bottom of the power pipeline, described to underpin support
Component, which is used, jumps one method construction every one；
In setting up underpinning structure beam on the mounting structures of the same side, the underpinning structure beam be placed in it is described underpin supporting member it
On；
The underpinning structure beam is fixedly connected with the supporting member that underpins, the underpinning structure beam exterior bottom in institute
It states and underpins the two sides of supporting member and open up connecting hole, set using U-shaped cuff and described underpin supporting member and pass through the connecting hole
The underpinning structure beam is then anchored on by nut；In the inside of the underpinning structure beam, using dowel be bent into it is U-shaped simultaneously
Be set in it is described underpin on supporting member, the top of the dowel is vertically bent and is placed in the top of the underpinning structure beam simultaneously
It is welded with the top of the underpinning structure beam.
2. the construction method for underpining system between subterranean communication road as described in claim 1 and power pipeline, which is characterized in that
Further include:
It is wrapped up in two corners of the power pipeline bottom using angle wrapping structure.
3. the construction method for underpining system between subterranean communication road as described in claim 1 and power pipeline, which is characterized in that
Further include: pad between supporting member and the power pipeline is underpined described in each sets support plate；
Column is underpined in the bottom interval support of the underpinning structure beam, the bottom for underpining column is set to ground to be onstructed
On the top plate of lower communication channel.
4. the construction method for underpining system between subterranean communication road as described in claim 1 and power pipeline, which is characterized in that
In mounting structures of constructing on the pile crown, comprising:
Construction Support bracket on the pile crown that stand column pile is underpined described in the power pipeline side；
In the pre-buried connecting plate in top of the support bracket；
Construction Support cushion cap on the pile crown that stand column pile is underpined described in the power pipeline other side；
In the pre-buried connecting plate in top of the support cushion cap.
5. the construction method for underpining system between subterranean communication road as described in claim 1 and power pipeline, which is characterized in that
Construction pipeline building enclosure, comprising:
One section of earth-retaining steel sheet pile of construction, the earth-retaining steel plate are moved towards along the power pipeline in the side of the power pipeline
The length of stake is greater than the width in subterranean communication road to be onstructed；
Construction Larsen steel sheet pile, the Larsen steel sheet pile are moved towards along the power pipeline in the other side of the power pipeline
Set on the two sides in subterranean communication road to be onstructed.
6. underpining system between a kind of subterranean communication road and power pipeline, for constructing, the underground passed through below power pipeline connects
The power pipeline is protected in support when channel, which is characterized in that the system that underpins includes:
It is inserted in the pipeline building enclosure of the power pipeline two sides, the bottom of the pipeline building enclosure is located at ground to be onstructed
The top of lower communication channel；
It is inserted in the stand column pile that underpins of the power pipeline two sides, the ground to be onstructed is protruded into the bottom for underpining stand column pile
The bottom plate of lower communication channel is hereinafter, be located at the two sides for underpining stand column pile and being set to the subterranean communication road to be onstructed of the same side；
It is formed in the mounting structures underpined on the pile crown of stand column pile；And
It is erected on the mounting structures and is supported in the underpinning structure of the power pipeline bottom；The underpinning structure includes:
Supporting member is underpined, the supporting member that underpins is inserted in the soil body of the power pipeline bottom and is supported in the electricity
The bottom of solenoid line, the supporting member that underpins use the method for jumping one every one to construct；
The underpinning structure beam being erected on the mounting structures positioned at the same side, the underpinning structure beam, which is placed in, described underpins branch
It supports on component, and is fixedly connected with the supporting member that underpins；The bottom in the outside of the underpinning structure beam is underpined in described
The two sides of supporting member open up connecting hole, using U-shaped cuff set it is described underpin supporting member and pass through the connecting hole then lead to
It crosses nut and is anchored on the underpinning structure beam；The inside of the underpinning structure beam is bent into U-shaped and is set in institute using dowel
It states and underpins on supporting member, the top of the dowel vertically bends the top for being placed in the underpinning structure beam and underpins with described
It welds at the top of structural beams.
7. underpining system between subterranean communication road as claimed in claim 6 and power pipeline, which is characterized in that the power pipe
It is wrapped up using angle wrapping structure in two corners of line bottom.
8. underpining system between subterranean communication road as claimed in claim 6 and power pipeline, which is characterized in that described to underpin knot
Structure further include:
Pad is set on the support plate underpined between supporting member and the power pipeline described in each；
Interval is supported in the column that underpins in underpinning structure beam bottom portion, and the bottom for underpining column is set to underground to be onstructed
On the top plate of communication channel.
9. underpining system between subterranean communication road as claimed in claim 6 and power pipeline, which is characterized in that the support knot
Structure includes:
Pour the support bracket underpined on the pile crown of stand column pile for being formed in the power pipeline side, the support ox
Connecting plate is embedded at the top of leg；
Pour the support cushion cap underpined on the pile crown of stand column pile for being formed in the power pipeline other side, the support
Connecting plate is embedded at the top of cushion cap.
10. underpining system between subterranean communication road as claimed in claim 6 and power pipeline, which is characterized in that the pipeline
Building enclosure includes:
It is inserted in the power pipeline side and moves towards the earth-retaining steel sheet pile laid, the earth-retaining steel sheet pile along the power pipeline
Length be greater than subterranean communication road to be onstructed width；
It is inserted in the power pipeline other side and moves towards the Larsen steel sheet pile laid, the Larsen steel plate along the power pipeline
Stake is set to the two sides in subterranean communication road to be onstructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611011046.9A CN106638668B (en) | 2016-11-17 | 2016-11-17 | System and its construction method are underpined between subterranean communication road and power pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011046.9A CN106638668B (en) | 2016-11-17 | 2016-11-17 | System and its construction method are underpined between subterranean communication road and power pipeline |
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| CN106638668A CN106638668A (en) | 2017-05-10 |
| CN106638668B true CN106638668B (en) | 2019-07-30 |
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| CN110924564B (en) * | 2019-11-20 | 2021-02-23 | 中国十七冶集团有限公司 | Electrical pipeline pre-embedding system in secondary structure and implementation method |
| CN111877356A (en) * | 2020-07-21 | 2020-11-03 | 山东大学 | Cable trench underpinning device and method for assisting underground structure construction |
| CN113944181B (en) * | 2021-10-25 | 2022-11-04 | 中建八局第一建设有限公司 | Pile foundation replacement pouring module for high-speed rail station house canopy and construction process of pile foundation replacement pouring module |
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| JP2000096596A (en) * | 1998-09-22 | 2000-04-04 | Nkk Corp | Floating prevention structure of buried construction |
| CN201128916Y (en) * | 2007-07-13 | 2008-10-08 | 铁道第二勘察设计院 | Active pile foundation underpinning structure |
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| CN105421466A (en) * | 2015-11-26 | 2016-03-23 | 中国建筑第八工程局有限公司 | Underpinning construction method and underpinning device for temporary latticed column |
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Effective date of registration: 20200603 Address after: 201306 building C, No. 888, Huanhu West 2nd Road, Lingang New Area, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: China Construction Eighth Engineering Bureau Technology Construction Co., Ltd Address before: 200135, Shanghai, Pudong New Area, China (Shanghai) free trade test zone, Century Avenue, No. 27, 1568 Patentee before: CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION Co.,Ltd. |