CN106638668A - Underpinning system between underground connection passage and power pipeline and construction method of underpinning system - Google Patents
Underpinning system between underground connection passage and power pipeline and construction method of underpinning system Download PDFInfo
- Publication number
- CN106638668A CN106638668A CN201611011046.9A CN201611011046A CN106638668A CN 106638668 A CN106638668 A CN 106638668A CN 201611011046 A CN201611011046 A CN 201611011046A CN 106638668 A CN106638668 A CN 106638668A
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- CN
- China
- Prior art keywords
- power pipeline
- pipeline
- underpined
- pile
- construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
Abstract
The invention relates to an underpinning system between an underground connection passage and a power pipeline and a construction method of the underpinning system. The construction method comprises the following steps that pipeline building envelopes are constructed on the two sides of the power pipeline, the bottoms of the pipeline building envelopes are located above the underground connection passage to be constructed; underpinning upright piles are constructed on the two sides of the power pipeline, and the underpinning upright piles located on the same side are arranged on the two sides of the underground connection passage to be constructed; earthwork at positions of the underpinning upright piles are excavated so that pile heads of the underpinning upright piles can be exposed, and bearing structures are constructed on the pile heads; and underpinning structures supported by the bottom of the power pipeline are constructed on the bearing structures. According to the underpinning system, powerful bearing is carried out on the power pipeline through the underpinning structures, the power pipeline is prevented from generating overlarge deflection or sedimentation, it is ensured that when the underground connection passage is constructed, the effect on the power pipeline is reduced, construction safety is ensured, and safety accidents are eradicated.
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 technology
In recent years, the structure work of existing pipeline and highway due to the development and utilization of the underground space, is worn under occurring in that in a large number
Journey.Runing below busy highway and normal construction underground utilities, when building the underground engineerings such as the passage that passes through, more using dark
The construction method of digging.If the subterranean communication road built near power pipeline when, it is higher for settlement request, sedimentation no more than
2cm, settles or deforms excessive then it may happen that cable is impaired, is easy to surrounding metal object because voltage is very big
Raw discharge process, produces electric arc, spark and on fire or discharge-induced explosion occurs even, cause bad social influence and security incident.
Existing connection pipeline construction method can not still meet requirement of the power pipeline to settling at present, it is impossible to guarantee in electric power
The construction safety in crossing construction subterranean communication road below pipeline.
The content of the invention
It is an object of the invention to overcome the defect of prior art, there is provided the support between a kind of subterranean communication road and power pipeline
System and its construction method are changed, the construction method for solving subterranean communication road in prior art can not still meet power pipeline to sedimentation
Requirement, it is impossible to guarantee the problem of the construction safety in crossing construction subterranean communication road below power pipeline.
The technical scheme for realizing above-mentioned purpose is：
The invention provides the construction method for underpining system between a kind of subterranean communication road and power pipeline, for construction from
The protection power pipeline, the construction method is supported to comprise the steps during the subterranean communication road passed through below power pipeline：
In the both sides construction pipeline building enclosure of the power pipeline, the bottom of the pipeline building enclosure is positioned to be onstructed
Subterranean communication road top；
Stand column pile is underpined in the both sides construction of the power pipeline, the bottom for underpining stand column pile is stretched into described to be onstructed
Subterranean communication road base plate below, positioned at stand column pile is underpined described in the same side located at the subterranean communication road to be onstructed
Both sides；
The earthwork at stand column pile is underpined described in excavating to expose the pile crown for underpining stand column pile, and is applied on the pile crown
Work mounting structures；And
Construction Support is in the underpinning structure of the power pipeline bottom on the mounting structures.
The present invention carries out strong support to power pipeline using underpinning structure, prevents power pipeline from producing excessive amount of deflection
Or sedimentation, it is ensured that under construction ground during communication channel, reduce the impact to power pipeline, it is ensured that construction safety, prevent security incident.
The soil body of power pipeline both sides is reinforced using pipeline building enclosure, reduced when subterranean communication road is constructed to power pipeline two
The disturbance of the side soil body, and then avoid bringing power pipeline damage.Favourable propping up is provided to underpinning structure using stand column pile is underpined
Support, it can be ensured that the effective protection to power pipeline, underpin that stand column pile and underpinning structure formed underpin system, support steady
Gu, power pipeline is served and is effectively protected.
The construction method for underpining system between subterranean communication road of the present invention and power pipeline further improvement is that, in institute
Construction Support is stated on mounting structures in the underpinning structure of the power pipeline bottom, including：
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 in the bottom of the power pipeline described in order, described to underpin
Supporting member is using the method construction that is jumped every；
Set up underpinning structure beam on the mounting structures of the same side, the underpinning structure beam is placed in and described underpins supporting member
On；
The underpinning structure beam is fixedly connected with the supporting member that underpins.
Further improvement is that for the construction method for underpining system between subterranean communication road of the present invention and power pipeline, also wraps
Include：Gripper shoe is set in pad between supporting member and the power pipeline is underpined described in each；
Support in the bottom interval of the underpinning structure beam and underpin column, by the bottom for underpining column located to be onstructed
Subterranean communication road top board on.
The construction method for underpining system between subterranean communication road of the present invention and power pipeline further improvement is that, in institute
State, including：
The 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 for supporting bracket；
The Construction Support cushion cap on the pile crown that stand column pile is underpined described in the power pipeline opposite side；
In the pre-buried connecting plate in top for supporting cushion cap.
Further improvement is that for the construction method for underpining system between subterranean communication road of the present invention and power pipeline, constructs
Pipeline building enclosure, including：
Native steel sheet pile, the gear soil are kept off along one section of the construction of moving towards of the power pipeline in the side of the power pipeline
Width of the length of steel sheet pile more than subterranean communication road to be onstructed；
In the power pipeline opposite side along the power pipeline move towards construct Larsen steel sheet pile, the Larsen steel
Both sides of the sheet pile located at subterranean communication road to be onstructed.
Present invention also offers underpin system between a kind of subterranean communication road and power pipeline, for construction from power pipeline
The protection power pipeline, the system that underpins is supported to include during the subterranean communication road that lower section passes through：
The pipeline building enclosure of the power pipeline both sides is inserted in, the bottom of the pipeline building enclosure is positioned to be onstructed
Subterranean communication road top；
The stand column pile that underpins of the power pipeline both sides is inserted in, the bottom for underpining stand column pile is stretched into described to be onstructed
Subterranean communication road bottom below, positioned at the same side underpin stand column pile located at the subterranean communication road to be onstructed two
Side；
It is formed at 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.
Further improvement is that for system, the underpinning structure bag are underpined between subterranean communication road of the present invention and power pipeline
Include：
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 is using the method construction that is jumped every；
It is erected on and structural beams is underpined on the mounting structures of the same side, the underpinning structure beam is placed in described underpining
On supporting member, and it is fixedly connected with the supporting member that underpins.
Further improvement is that for system is underpined between subterranean communication road of the present invention and power pipeline, the underpinning structure is also
Including：
Pad is located at the gripper shoe underpined described in each between supporting member and the power pipeline；
Interval is supported in the column that underpins of the underpinning structure beam bottom, and the bottom for underpining column is located to be onstructed
On the top board in subterranean communication road.
Further improvement is that for system, the mounting structures bag are underpined between subterranean communication road of the present invention and power pipeline
Include：
Pour the support bracket underpined on the pile crown of stand column pile for being formed at the power pipeline side, described
Connecting plate is embedded with the top of support bracket；
The support cushion cap underpined on the pile crown of stand column pile for being formed at the power pipeline opposite side is poured, it is described
Support connecting plate is embedded with the top of cushion cap.
Further improvement is that for system is underpined between subterranean communication road of the present invention and power pipeline, the pipeline goes along with sb. to guard him knot
Structure includes：
The gear soil steel sheet pile for being inserted in the power pipeline side and moving towards to lay along the power pipeline, the gear soil steel
Width of the length of sheet pile more than subterranean communication road to be onstructed；
The Larsen steel sheet pile for being inserted in the power pipeline opposite side and moving towards to lay along the power pipeline, the Larsen
Both sides of the steel sheet pile located at subterranean communication road to be onstructed.
Description of the drawings
Fig. 1 is the top view for underpining system support power pipeline between subterranean communication road of the present invention and power pipeline.
Fig. 2 is the sectional view for underpining system between subterranean communication road of the present invention and power pipeline.
Fig. 3 is a kind of embodiment of the mounting structures underpined in system between subterranean communication road of the present invention and power pipeline
Structural representation.
Fig. 4 is another kind of embodiment party of the mounting structures underpined in system between subterranean communication road of the present invention and power pipeline
The structural representation of formula.
Fig. 5 is the structural representation for underpining the underpinning structure in system between subterranean communication road of the present invention and power pipeline.
Fig. 6 is the a-a sectional views in Fig. 5.
Fig. 7 is the b-b sectional views in Fig. 5.
Fig. 8 is the c-c sectional views in Fig. 5.
Fig. 9 is that underpining between subterranean communication road of the present invention and power pipeline underpins supporting member support power pipe in system
The structural representation of line.
Figure 10 be between subterranean communication road of the present invention and power pipeline underpin system in underpin column and subterranean communication road
Attachment structure schematic diagram.
Figure 11 be between subterranean communication road of the present invention and power pipeline underpin system in underpin column the structure at top show
It is intended to.
Figure 12 is that the underpinning structure beam in system that underpins between subterranean communication road of the present invention and power pipeline is located at mounting structures
The structural representation at place.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
The invention provides between a kind of subterranean communication road of the present invention and power pipeline underpin system in underpin column and its
Construction method, it is adaptable to construction through power pipeline subterranean communication road when, provide stable support for electric power relation, prevent electricity
Solenoid line produces excessive amount of deflection or sedimentation, it is ensured that construction safety, also ensures that the safety of power pipeline, it is to avoid security incident is sent out
It is raw.Below in conjunction with the accompanying drawings between subterranean communication road of the present invention and power pipeline underpin system and its construction method is illustrated.
Below the system that underpins between subterranean communication road of the present invention and power pipeline is illustrated.
As depicted in figs. 1 and 2, subterranean communication road of the present invention and power pipeline underpin system, for construction from power pipe
Protection power pipeline 20 is supported during the subterranean communication road 10 that the lower section of line 20 passes through, this underpins system includes pipeline building enclosure
31st, 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 positioned to be onstructed
The top in subterranean communication road 10；The both sides that stand column pile 32 is inserted in power pipeline 20 are underpined, the bottom for underpining stand column pile 32 is stretched
Enter the base plate in subterranean communication road 10 to be onstructed below 101, the stand column pile 32 that underpins positioned at the same side is located at underground to be onstructed
The both sides of communication channel 10, it is to avoid underpin construction of the stand column pile 32 on underground communication channel 10 and produce impact.Mounting structures 33 are formed at
Underpin on the pile crown of 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 that underpins of the present invention is power pipe using the stand column pile 32 that underpins being inserted into below 10 bottom of subterranean communication road
Line 20 provides strong support, and recycling is arranged at mounting structures 33 and 34 support of the underpinning structure electricity underpined on stand column pile 32
Solenoid line 20, plays the effect of being effectively protected to power pipeline 20, prevents sedimentation or the amount of deflection of power pipeline 20, it is ensured that power pipe
The safety of line 20, it is to avoid the generation of security incident.The system that underpins of the present invention forms stably firm in the bottom of power pipeline 20
Support system, and underpin the both sides that stand column pile 32 is crossed on subterranean communication road 10 in the system, do not interfere with subterranean communication
The construction in road 10.
Used as the better embodiment for underpining system of the present invention, with reference to 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
The bottom of power pipeline 20 is supported in, and supporting member 341 is underpined using the method construction that is jumped every, is underpined supporting member 341
Being inserted in the soil body of 20 bottom of power pipeline side by side, underpins 341 interval setting of supporting member, if supporting member will be underpined
341 are divided into two groups with odd and even number, underpin supporting member every what one method of jump referred to one of which of first sequentially constructing
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
Also it is placed in and underpins on supporting member 341, and is 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, firm force structure is stablized in formation, there is provided firm support.
As the better embodiment for underpining system of the present invention, to guarantee to underpin the stress equalization of supporting member 341
Property and overall security, underpinning structure 34 also include pad underpin between supporting member 341 and power pipeline 20 located at each,
Increased using gripper shoe 343 and the lifting surface area between power pipeline 20, it is ensured that underpinning structure 34 can really be played and underpin electric power
The purpose of pipeline 20, really plays a protective role.As shown in figure 1, to prevent 342 middle stress of underpinning structure beam from producing after amount of deflection
Recessed, underpinning structure 34 is also supported in the bottom for underpining column 344, underpining column 344 of 32 bottom of underpinning structure beam including interval
Portion is located on the top board 101 in subterranean communication road 10 to be onstructed, with reference to shown in Figure 10, in the top board 101 in subterranean communication road 10
When construction is completed, connector 3442 is anchored in the position for underpining column 344,3442 bottom of connector is provided with vertical dowel, should
Dowel is anchored in top board 101, and the top of connector 2442 is fixed in the bottom for underpining column 344, underpins column 344 at this
Bottom is enclosed and is provided with stiffener 3441, and the stiffener 3441 is fixedly connected with connector 3442.With reference to shown in Figure 11, column is underpined
344 top is provided with supporting plate 3443, and 3443 support of supporting plate is underpining column 344 in the bottom of underpinning structure beam 342
Top is also enclosed and is provided with stiffener 3441, and the stiffener 3441 is fixedly connected with supporting plate 3443.
As the better embodiment for underpining system of the present invention, as shown in figure 9, inserting 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 34 preferably adopt angle steel.Can be effective by arranging angle wrapping structure 35
Avoid underpining active force of the supporting member 341 in 20 corner of power pipeline and excessively concentrate and cause pipeline breaking, angle wrapping structure 35
Serve the effect of 20 structural integrity of effective protection power pipeline.
As the better embodiment for underpining system of the present 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 both sides open up connecting hole, are arranged using U-shaped hoop 345 and underpin supporting member 341 and pass through connecting hole then tight by nut
It is fixed in underpinning structure beam 342.With reference to shown in Fig. 8, between nut and underpinning structure beam 342, pad is provided with pad 348.Such as Fig. 7 and
Shown in Fig. 8, it is connected with supporting member 341 is underpined using welding manner in the inner side of underpinning structure beam 342, using dowel 347
It is bent into U-shaped and is set in and underpins on supporting member 341, then 347 plan vertical of U-shaped dowel bending is placed in underpinning structure
The top of beam 342, and fix with the welded top of underpinning structure beam 342, it is welded and fixed using full weld mode.
As the better embodiment for underpining system of the present invention, it is to improve the structural strength for underpining supporting member 341,
Underpin supporting member 341 and adopt steel pipe, and steel duct pours the pea gravel concreten for being inoculated with C20, and sealed with steel plate at steel pipe two ends
Block up.
Used as the better embodiment for underpining system of the present 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 for supporting bracket 331
Portion is embedded with connecting plate 3311, and the connecting plate 3311 is used for the underpinning structure beam 342 that is connected.Mounting structures 33 also include pouring
The support cushion cap 332 being formed on the pile crown for underpining stand column pile 32 of 20 opposite side of power pipeline, on the top for supporting cushion cap 332
Portion is embedded with connecting plate 3321, and the connecting plate 3321 is used for the underpinning structure beam 342 that is connected.Bracket 331 and support is supported to hold
Support 332 is xoncrete structure, supports the reinforcing bar 3312 of bracket 331 to be fixedly connected with the reinforcing bar 321 for underpining stand column pile 32, it is ensured that to pour
The support bracket 331 built is connected with stand column pile 32 is underpined.Support the reinforcing bar 3322 and the steel for underpining stand column pile 32 of cushion cap 332
Muscle 321 is fixedly connected, it is ensured that the support support 332 for pouring 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 bracket 331 is supported in colligation and support 332 reinforcing bar of cushion cap
And pour to be formed.
As the better embodiment for underpining system of the present invention, the construction of supporting member 341 is underpined for convenience,
Then the side earth excavation of power pipeline 20 will be poured after levelling of the land to below 341 bottom of supporting member at least 400mm is underpined
C20 plain concrete cushion layers are built, the thickness of bed course is more than or equal to 100mm, by the use of bed course as construction operation platform, carry out underpining and prop up
The construction of support component 341.
Used as the better embodiment for underpining system of the present invention, as depicted in figs. 1 and 2, pipeline building enclosure 31 is wrapped
The gear soil steel sheet pile 311 for being inserted in 20 side of power pipeline and moving towards to lay along power pipeline 20 is included, also including being inserted in electric power
20 opposite side of pipeline the Larsen steel sheet pile 312 for moving towards to lay along power pipeline 20, the Larsen steel sheet pile 312 is located to be onstructed
The both sides in subterranean communication road 10.The native steel sheet pile 311 of gear overlaps to be formed using I-steel in length and breadth, is reduced using the native steel sheet pile 311 of gear
Disturbance of the construction in subterranean communication road 10 to the soil body of 20 side of power pipeline, it is to avoid damage is brought to town road and buried pipeline
It is bad.Larsen steel sheet pile 312 is used to prevent when construction underpins stand column pile 32, and mud is penetrated in power pipeline 20, underpins column
Stake 32 adopts high-pressure rotary stake.
As described in Figure 12, it is in order to further strengthen the structural strength of underpinning structure beam 342, right on underpinning structure beam 342
Answer the part of mounting structures 33 that floor 3421 is set, underpinning structure beam 342 adopts I-steel, floor 3421 to be inserted in I-steel
Both sides are simultaneously fixedly connected with web and two upper and lower flange plates.
Below the construction method for underpining system between subterranean communication road of the present invention and power pipeline is illustrated.
As depicted in figs. 1 and 2, the construction method for underpining system between subterranean communication road of the invention and power pipeline, uses
Protection power pipeline 20 is supported when the subterranean communication road 10 that construction is passed through from below power pipeline 20, construction method includes as follows
Step：
In the both sides construction pipelines 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 hindering the construction in subterranean communication road 10；
Stand column pile 32 is underpined in the both sides construction of power pipeline 20, underground to be onstructed is stretched in the bottom for underpining stand column pile 32
The base plate of communication channel 10 is below 101, underpins both sides of the stand column pile 32 located at subterranean communication road 10 to be onstructed positioned at the same side；
Excavation underpins the earthwork at stand column pile 32 to expose the pile crown for underpining stand column pile 3, and support knot of constructing on pile crown
Structure 33；And
Construction Support is in the underpinning structure 34 of 20 bottom of power pipeline on the mounting structures 33.
The construction method of the present invention carries out strong support to power pipeline using underpinning structure, prevents power pipeline from producing
Excessive amount of deflection or sedimentation, it is ensured that under construction ground during communication channel, reduce the impact to power pipeline, it is ensured that construction safety, Du
Exhausted security incident.The soil body of power pipeline both sides is reinforced using pipeline building enclosure, 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
Provide favourable support, it can be ensured that the effective protection to power pipeline, stand column pile is underpined with underpining that underpinning structure is formed
System, supports firm, power pipeline is served and is effectively protected.
Construction pipeline building enclosure includes：
As depicted in figs. 1 and 2, native steel plate is kept off along one section of the construction of moving towards of power pipeline 20 in the side of power pipeline 20
Stake 311, the length of the native steel sheet pile 311 of gear are more than the width in subterranean communication road 10 to be onstructed；In the opposite side of power pipeline 20
Along the Larsen steel sheet pile 312 of constructing that moves towards of power pipeline 20, Larsen steel sheet pile 312 is located at subterranean communication road 10 to be onstructed
Both sides.According to design requirement and on-site actual situations are gone along with sb. to guard him, first the native steel sheet pile 311 of construction gear and Larsen steel sheet pile 312, keep off native steel
Sheet pile 311 is overlapped in length and breadth using No. 14 I-steel, and effective length is 4m (3.5m), arranges the main purpose of the native steel sheet pile of shaped steel gear
Foundation ditch and disturbance of the structure construction to the 20 side soil body of power pipeline for reducing 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 both sides of subterranean communication road,
Mud penetrates into power pipeline and other pipelines, on the inside of power pipeline, arranges row's type III Larsen steel sheet pile, steel sheet pile buried depth
9m, wide 400mm, high 170mm, thick 15.5mm, go along with sb. to guard him design and respectively arrange 8 width, each subterranean communication in 10 both sides of subterranean communication road
Road respectively arranges 16 width.After the completion of section steel plate pile driving construction, then the construction for carrying out Larsen steel sheet pile.
Need to carry out earth excavation, backfill after the completion of the native steel sheet pile 311 of gear 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, it is to avoid to place upper strata earth excavation, backfill
Cause soil property loose, impact is produced on pile foundation, bracing engineering, first carry out the construction of water-stop curtain 103 and the support in subterranean communication road 10
The construction of stand column pile 32 is changed, then carries out the engineering pile in subterranean communication road 10, the construction of cast-in-situ bored pile foundation pit enclosure.
Water-stop curtain 103 and after the completion of underpining stand column pile 32, before 20 liang of side dumping soil of power pipeline, to prevent power pipeline
The direct-buried cable on 20 tops is damaged, first that the direct-buried cable at subterranean communication road position is public using exposure, electric power is manually dug out
Department check confirmation it is errorless after, set up direct-buried cable frame support bracket, frame support bracket using 12# channel-section steels, 8# channel-section steels be welded it is U-shaped
Carriage, 3 meters of frame support bracket installing space.
As shown in Figures 2 to 4, construct on pile crown mounting structures, including：
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 in top 3311；The Construction Support cushion cap on the pile crown for underpining stand column pile 32 of 20 opposite side of power pipeline
332；In the pre-buried connecting plate in top 3321 for supporting cushion cap 332.After direct-buried cable is hung up properly using frame support bracket, first in power pipe
Two side dumping soil of line is excavated to support bracket bottom absolute altitude and supports cushion cap bottom absolute altitude position, subsequently abolishes and underpins column pile head,
Power pipeline side is supported bracket, steel plate construction；Carry out underpining stand column pile concrete support in power pipeline opposite side and hold
Platform is constructed and the installation of pre-embedded steel slab, after the completion of supporting bracket and supporting bearing platform construction, carries out bracket, cushion cap concrete immediately
Maintenance.Support bracket 331 and support support 332 to be xoncrete structure, support the reinforcing bar 3312 of bracket 331 and underpin stand column pile 32
Reinforcing bar 321 be fixedly connected, it is ensured that the support bracket 331 for pouring 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 support 332 for pouring is linked to be with stand column pile 32 is underpined
Integrally.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 colligation
Bracket 331 is with support 332 reinforcing bar of cushion cap and pours to be formed.
As shown in Figure 1, Figure 2 with shown in Fig. 5, on the mounting structures Construction Support in the underpinning structure of power pipeline bottom, including：
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 be underpined and be propped up
Support component 341 is inserted in hole and underpins the bottom that supporting member 341 is supported in power pipeline 20 to make, and underpins supporting member
341 using the method construction that is jumped every；Underpinning structure beam 342, underpinning structure beam are set up 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 341 interval setting of supporting member, if will underpin
Support component 341 is divided into two groups with odd and even number, underpins support every what one method of jump referred to one of which of first sequentially constructing
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 is also placed in and underpins 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 be also fixedly connected with underpinning structure beam 342, underpinning structure beam 342 is placed in support
In structure 33, firm force structure is stablized in formation, there is provided firm support.
When installation underpins supporting member 341, the earth excavation of 341 installation region side of supporting member will be first underpined to support
Below 341 bottom of supporting member at least 400mm is changed, the excavation region is placed within pipeline building enclosure, levelling of the land after-pouring
C20 plain concrete cushion layers (surface press polish), thickness >=100mm, when in place, concreting intensity reaches more than 70%, and energy
After satisfaction underpins 341 execution conditions of supporting member, carry out immediately underpining supporting member 341 and construct, made using cushioning effect construction
Industry platform.Supporting member 341 is underpined using 108 × 10 seamless steel pipes of Φ, spacing 800,1000mm (underpin above stand column pile and
Outside is 1000mm, and inner side is 800mm), harmony in addition in view of power pipeline stress, overall security can be in supports
That changes supporting member 341 arranges gripper shoe with power pipeline contact site, and the gripper shoe adopts 300 × 10 steel plates, strengthens electric power
Pipeline underpins lifting surface area, it is ensured that underpins supporting member 341 and can really play the purpose for underpining power pipeline, really plays guarantor
The effect of shield.Supporting plate pad is located at each and underpins between supporting member 341 and power pipeline 20, and the gripper shoe 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 is positioned, and by position line, in power pipeline both sides, carries out the groove of hand excavation's underpinning structure beam 32, the width of groove, length
Degree, should meet underpinning structure beam 32 and install, operate requirement, and will also meet and underpin supporting member 341 and be welded and fixed requirement；Support
After changing structural beams channel excavation, it is necessary to first set up H400 × 400 × 13 × 21 section steel beam, in the middle part of section steel beam by Φ
108 × 10 seamless steel pipe columns are welded and fixed with girder steel, prevent girder steel stress produce degree of disturbing after it is recessed；Due to power pipeline west side
Close to municipal buried Gas Pipe, running water pipe, fire extinguisher canvas hose, storm sewer etc., so the position of underpinning structure beam is fairly small, because
This should be installed after first determining position, and be required the two ends of underpinning structure beam when carrying out the lifting of underpinning structure beam and installing
With the pre-buried connecting plate for supporting cushion cap or support bracket, it is necessary to firm welding.
Underpin the installation crescent spade of supporting member 341 and the side for drawing digging installation every a jump one by root is taken from subterranean communication road
Method, before underpining the installation of supporting member 341, it is desirable to underpin supporting member 341 and strictly must irrigate thin by design requirement in steel pipe
Stone concrete fill reality after firm welding is carried out using plugging plate, take with underpin with tracking carry out welded and installed method.
As shown in figure 9, the bottom Liang Ge corners of power pipeline 20 are wrapped up using angle wrapping structure 35, angle wrapping structure 35 is adopted
18# angle steel is used, is excessively concentrated and is caused pipeline to break in the active force of 20 corner portion of power pipeline to avoid underpining supporting member 341
Split.
After underpinning structure beam is installed, immediately the supporting member that underpins put in advance is welded and bolt connection
(the outside of underpinning structure beam is with bolts, inner side using be welded and fixed).Before underpining supporting member and being connected, must
Must adjustment good position, size, and require to block underpining supporting member two ends steel plate, and pouring C20 be thin in advance in the pipe
Stone concrete, treats that pipe inner concrete intensity reaches more than 70%, can carry out underpining supporting member installation,
As shown in Fig. 5 to Fig. 8, the connection of supporting member 341 and underpinning structure beam 342 is underpined, in underpinning structure beam 342
Outside opens up connecting hole in the both sides for underpining supporting member 341 using 342 bottom of underpinning structure beam, is arranged support using U-shaped hoop 345
Change supporting member 341 and underpinning structure beam 342 is anchored on by nut then through connecting hole.With reference to shown in Fig. 8, in nut and
Between underpinning structure beam 342, pad is provided with pad 348.The inner side of underpinning structure beam 342 using welding manner with underpin support structure
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
Plan vertical bending is placed in the top of underpinning structure beam 342, and fixes with the welded top of underpinning structure beam 342, using full weld
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, and this underpins the bottom for staying at underpinning structure beam 342 at the interval of column 344, underpins column 344
Bottom located at subterranean communication road 10 to be onstructed top board 102 on.It is uniformly arranged in the lower section of each underpinning structure beam 342
Two underpin column 344.Underpin 344 bottom of column to be fixedly connected with the top board 102 in subterranean communication road 10, top and underpinning structure
Beam 342 is welded and fixed.When the construction of top board 101 in subterranean communication road 10 is completed, connector is anchored in the position for underpining column 344
3442,3442 bottom of connector is provided with vertical dowel, and the dowel is anchored in top board 101, and the bottom for underpining column 344 is fixed
In the top of connector 2442, enclose in the bottom for underpining column 344 and be provided with stiffener 3441, the stiffener 3441 and connector
3442 are fixedly connected.With reference to shown in Figure 11, the top for underpining column 344 is provided with supporting plate 3443,3443 support of supporting plate in
The bottom of underpinning structure beam 342, also encloses at the top for underpining column 344 and is provided with stiffener 3441, the stiffener 3441 and support
Plate 3443 is fixedly connected.
As described in Figure 12, it is in order to further strengthen the structural strength of underpinning structure beam 342, right on underpinning structure beam 342
Answer the part of mounting structures 33 that floor 3421 is set, underpinning structure beam 342 adopts I-steel, floor 3421 to be inserted in I-steel
Both 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 of the present invention and power pipeline：
Favourable safety guarantee is provided for the construction in subterranean communication road by underpining system, can be provided surely for power pipeline
Fixed support effect, it is to avoid the generation of the security incident of power pipeline, it is ensured that construction safety.
Strong support is carried out to power pipeline using underpinning structure, prevents power pipeline from producing excessive amount of deflection or heavy
Drop, it is ensured that under construction ground during communication channel, reduces the impact to power pipeline, it is ensured that construction safety, prevents security incident.
Favourable support is provided to underpinning structure using stand column pile is underpined, it can be ensured that the effective protection to power pipeline,
Underpin that stand column pile and underpinning structure formed underpins system, supports firm, power pipeline is served and is effectively protected.
The soil body of power pipeline both sides is reinforced using pipeline building enclosure, reduced when subterranean communication road is constructed to electricity
The disturbance of solenoid line soil at both sides, and then avoid bringing power pipeline damage.
The present invention is described in detail above in association with accompanying drawing embodiment, those skilled in the art can be according to upper
State and bright many variations example is made to the present invention.Thus, some of embodiment details should not constitute limitation of the invention, this
Invention is by the scope defined using appended claims 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, wears from below power pipeline for construction
The protection power pipeline is supported during the subterranean communication road crossed, it is characterised in that the construction method comprises the steps：
In the both sides construction pipeline building enclosure of the power pipeline, the bottom of the pipeline building enclosure is located at ground to be onstructed
The top of lower communication channel；
Stand column pile is underpined in the both sides construction of the power pipeline, the ground to be onstructed is stretched in the bottom for underpining stand column pile
Below the base plate of lower communication channel, positioned at underpin described in the same side stand column pile located at the subterranean communication road to be onstructed two
Side；
The earthwork underpined at stand column pile is excavated so that the pile crown of stand column pile is underpined described in exposing, and is constructed on the pile crown and is held
Holder structure；And
Construction Support is in the underpinning structure of the power pipeline bottom on the mounting structures.
2. the construction method for underpining system between subterranean communication road as claimed in claim 1 and power pipeline, it is characterised in that
Construction Support is in the underpinning structure of the power pipeline bottom on the mounting structures, including：
The soil body for digging the power pipeline bottom is drawn to form hole according to the size for underpining supporting member, support is underpined by described
Component is inserted in described hole to underpin support member support in the bottom of the power pipeline described in order, described to underpin support
Component is using the method construction that is jumped every；
Set 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.
3. the construction method for underpining system between subterranean communication road as claimed in claim 2 and power pipeline, it is characterised in that
Also include：Gripper shoe is set in pad between supporting member and the power pipeline is underpined described in each；
Support in the bottom interval of the underpinning structure beam and underpin column, the bottom for underpining column is located at into ground to be onstructed
On the top board of lower communication channel.
4. the construction method for underpining system between subterranean communication road as claimed in claim 1 and power pipeline, it is characterised in that
Construct on the pile crown mounting structures, including：
The 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 for supporting bracket；
The Construction Support cushion cap on the pile crown that stand column pile is underpined described in the power pipeline opposite side；
In the pre-buried connecting plate in top for supporting cushion cap.
5. the construction method for underpining system between subterranean communication road as claimed in claim 1 and power pipeline, it is characterised in that
Construction pipeline building enclosure, including：
Native steel sheet pile, the gear soil steel plate are kept off along one section of the construction of moving towards of the power pipeline in the side of the power pipeline
Width of the length of stake more than subterranean communication road to be onstructed；
In the power pipeline opposite side along the power pipeline move towards construct Larsen steel sheet pile, the Larsen steel sheet pile
Located at the both sides in subterranean communication road to be onstructed.
6. system is underpined between a kind of subterranean communication road and power pipeline, the underground passed through from below power pipeline for constructing connects
The protection power pipeline is supported during passage, it is characterised in that the system that underpins includes：
The pipeline building enclosure of the power pipeline both sides is inserted in, the bottom of the pipeline building enclosure is located at ground to be onstructed
The top of lower communication channel；
The stand column pile that underpins of the power pipeline both sides is inserted in, the ground to be onstructed is stretched in the bottom for underpining stand column pile
Below the bottom of lower communication channel, positioned at the same side underpin stand column pile located at the subterranean communication road to be onstructed both sides；
It is formed at 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.
7. system is underpined between subterranean communication road as claimed in claim 6 and power pipeline, it is characterised in that described to underpin knot
Structure includes：
Supporting member is underpined, the bottom of the power pipeline, institute is inserted in the soil body of the power pipeline bottom and is supported in
State supporting member is underpined using the method construction that is jumped every；
It is erected on and structural beams is underpined on the mounting structures of the same side, the underpinning structure beam is placed in and described underpins support
On component, and it is fixedly connected with the supporting member that underpins.
8. system is underpined between subterranean communication road as claimed in claim 7 and power pipeline, it is characterised in that described to underpin knot
Structure also includes：
Pad is located at the gripper shoe underpined described in each between supporting member and the power pipeline；
Interval is supported in the column that underpins of the underpinning structure beam bottom, and the bottom for underpining column is located at underground to be onstructed
On the top board of communication channel.
9. system is underpined between subterranean communication road as claimed in claim 6 and power pipeline, it is characterised in that the support knot
Structure includes：
Pour the support bracket underpined on the pile crown of stand column pile for being formed at the power pipeline side, the support cattle
Connecting plate is embedded with the top of lower limb；
Pour the support cushion cap underpined on the pile crown of stand column pile for being formed at the power pipeline opposite side, the support
Connecting plate is embedded with the top of cushion cap.
10. system is underpined between subterranean communication road as claimed in claim 6 and power pipeline, it is characterised in that the pipeline
Building enclosure includes：
The gear soil steel sheet pile for being inserted in the power pipeline side and moving towards to lay along the power pipeline, the gear soil steel sheet pile
Length more than subterranean communication road to be onstructed width；
The Larsen steel sheet pile for being inserted in the power pipeline opposite side and moving towards to lay along the power pipeline, the Larsen steel plate
Both sides of the stake located at subterranean communication road to be onstructed.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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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| CN106638668B CN106638668B (en) | 2019-07-30 |
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| 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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Also Published As
| Publication number | Publication date |
|---|---|
| CN106638668B (en) | 2019-07-30 |
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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. |