CN109779636A - The ruggedized construction of existing building is worn under a kind of shield tunnel - Google Patents
The ruggedized construction of existing building is worn under a kind of shield tunnel Download PDFInfo
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- CN109779636A CN109779636A CN201910137520.XA CN201910137520A CN109779636A CN 109779636 A CN109779636 A CN 109779636A CN 201910137520 A CN201910137520 A CN 201910137520A CN 109779636 A CN109779636 A CN 109779636A
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- existing building
- shield tunnel
- ruggedized construction
- vertical supporting
- tunnel
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- 238000010276 construction Methods 0.000 title claims abstract description 44
- 239000002689 soil Substances 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 36
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000007569 slipcasting Methods 0.000 claims description 14
- 239000011150 reinforced concrete Substances 0.000 claims description 5
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 239000004576 sand Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to constructing tunnel technical field of structures, in particular to the ruggedized construction for wearing existing building under a kind of shield tunnel.Vertical supporting structure including being located at existing building both lateral sides and the bracing structure between existing building and shield tunnel；The vertical supporting structure is inserting piling in the intracorporal piling strtucture of shield tunnel travelling route both lateral sides soil；The bracing structure transverse ends are fixed on the portal-framed structure that support existing building is formed in the vertical supporting structure of two sides, and the tension structure that transverse stretching is carried out to bracing structure is provided between the vertical supporting structure of two sides.Ruggedized construction of the invention is simple, evaded the pile foundation and internal structure of existing building completely, avoided and damage to existing building, and the complete preservation integrality and safety of existing building has great promotional value.
Description
Technical field
The present invention relates to constructing tunnel technical field of structures, in particular to worn under a kind of shield tunnel existing building plus
Fixing structure.
Background technique
As China's subway construction is increasing, wherein the existing object of building of shield driven tunnel crossing is difficult to avoid that.In shield tunnel
Under when wearing existing building, traditional method does sleeve valve barrel grouting around house, receives to the geology below existing building
Beam increases the bearing capacity of entire geology.But since existing building weight increases, geology is poor below existing building is caused
Existing building differential settlement is excessive, and existing building wall crazing to be traversed is caused to have existing building when becoming dilapidated house
Occur, especially a line city is northern, upper, wide, deep room rate is very expensive, in addition some existing buildings owner of estate mismatches and disagrees
Tear room open, typically without the shield driven tunnel crossing temple of removal option, historical relic's protection the existing buildings such as ancient buildings safely plus
Gu it is even more important, no matter social value and economic value it is especially huge.
In response to this problem, the entitled of Patent No. " CN107119732A " " wears the group of building under a kind of shield tunnel
The Chinese invention patent of beam active support and change method " provides and wears the method that building is reinforced under a kind of pair of shield tunnel, should
After the method earth excavation of ground end progress indoors, reinforcing water-proofing treatment first, construct to pile foundation, then master is made in pile foundation
Beam；Then it is fitted into secondary beam on the quasi- ground column underpined in building bottom, secondary beam both ends pass through hydraulic jack frame one respectively
On girder, supported by pile foundation, girder and secondary beam by the building in subway tunnel influence area；Last real-time monitoring column sinks
Situation is dropped, if column settles, girder and building settlement are adjusted by hydraulic jack；If column does not settle or no longer
Sedimentation cuts house original column below secondary beam, Tunnel Passing house lower section by shield machine.This method can be good at controlling
The sedimentation of whole building, but due to needing to be excavated in Indoor environment bottom, it is larger to the destruction of whole building,
It is unfavorable for promoting the use of, especially for heritage buildings, the method for this interior excavation is just difficult to carry out at all.
Summary of the invention
Present invention aim to solve to wear building under the shield tunnel for the prior art that above-mentioned background technique is mentioned
Reinforcement means there are problems that destroying existing building it is big, be difficult to promote, provide and wear existing building under a kind of shield tunnel
Ruggedized construction.
The technical solution of the present invention is as follows: wearing the ruggedized construction of existing building under a kind of shield tunnel, it is characterised in that: packet
Include the vertical supporting structure positioned at existing building both lateral sides and the transverse direction between existing building and shield tunnel
Support construction；The vertical supporting structure is inserting piling in the intracorporal piling strtucture of shield tunnel travelling route both lateral sides soil；
The bracing structure transverse ends are fixed on the door frame that support existing building is formed in the vertical supporting structure of two sides
Structure is provided with the tension structure that transverse stretching is carried out to bracing structure between the vertical supporting structure of two sides.
The bracing structure include more along the pipe tunnel of shield tunnel direction of travel arrangement and
The horizontal pipeline of more vertical shield tunnel direction of travel；The pipe tunnel and horizontal pipeline is multiple to be evenly equipped on tube body
The grouting pipe of slip casting through-hole, pipe tunnel and horizontal pipeline be criss-cross arranged by into pipe slip casting link together and to be formed
Support the reinforced concrete structure of existing building.
If without support pile foundation below existing building, bracing structure only arranges horizontal pipeline.
The further tension structure includes the anchor cable being arranged in horizontal pipeline；Distinguish at the both ends of the anchor cable
It is fixedly connected with the vertical supporting structure of two sides.
The further vertical supporting structure includes more piece reinforcing piles of the inserting piling in existing building two sides, Duo Genjia
Gu stake is along shield tunnel direction of travel arranged for interval.
The further vertical supporting structure includes pouring in the company on the ipsilateral row's reinforcing pile of existing building
Binder.
The both ends of the further lateral steel pipe extend respectively in linking beam and pour in continuous beam.
It is the imporous closed conduct structure in surface that the further lateral steel pipe, which extends to the tube body in continuous beam,.
The further vertical supporting structure further includes the steel cofferdam positioned at existing building both lateral sides；Described
Reinforcing pile inserting piling is in the soil body in steel cofferdam.
It further further include the more mini-valve tubes between vertical supporting structure and existing building, more mini-valve tubes
Along shield tunnel direction of travel arranged for interval.
The further pipe tunnel and horizontal pipeline are to be arranged in below existing building in pile foundation gap
Grouting pipe.
Both lateral sides construction reinforcement stake of the present invention in existing building, soil between existing building and shield tunnel
Horizontal, pipe tunnel is worn in vivo, and pipeline is Grouting Pipe, and horizontal pipeline wears anchor cable, and horizontal pipeline both ends are fixed on reinforcing pile top
Linking beam on, after the concrete strength of linking beam reaches tensioning intensity to anchor cable carry out tensioning, then by pipeline into
Row slip casting, slurry enter the pipeline soil body, and the reinforced concrete structure that anchor cable forms carrying existing building, note are wrapped up in slip casting
Slurry reaches reinforcing of the completion to existing building after design strength.The support force that anchorage cable stretching power is formed is transformed by reinforcing pile
The support force that pile foundation reverse friction power is formed is reinforced, has the function that support existing building.Meanwhile after pretensioning into pipeline
Slip casting, injecting cement paste inject the soil body by injected hole and form reinforcing layer, play sand settlement action above barrier reinforcing body.
Advantages of the present invention has: 1, the present invention passes through the both lateral sides and arranged beneath portal-framed structure pair in existing building
Existing building is supported fixation, avoids the problem that excavating existing building that building can be generated and destroys damage；
2, the present invention is by being arranged tension structure in the vertical supporting structure of two sides, to the transverse direction below existing building
Support construction carries out tensioning, is effectively transmitted to the sinking active force of existing building and reinforces pile foundation reverse friction power, avoids
The sinking of existing building and the soil body change the risk generated to shield tunnel construction；
3, the present invention carries out grouting and reinforcing to the soil body below existing building by grouting pipe, first is that forming one layer of reinforcing
Layer, the sand sedimentation of barrier reinforcing body top, dehydration causes sand to settle when avoiding because of shield crossing building.Second is that can enhance
The rigidity of the lower section soil body avoids subsidence problems, is supported third is that being capable of forming stable support construction to existing building；
4, the present invention by setting steel cofferdam as platform progress reinforcing pile and linking beam operation platform, avoid due to
Construction risk problem caused by existing building two sides subgrade settlement and infiltration, guarantees construction personnel's safety problem, improves and apply
The efficiency and safety for the industry that works；
5, the present invention carries out grouting and reinforcing into the soil body between vertical supporting structure and existing building by mini-valve tube,
Sealing (soil) curtain structure is formed, solves in work progress that the ground settlement as caused by water-rich sand layer is biggish to ask
Topic；
6, reinforcement means of the invention is applied widely, is suitble to the reinforcing of a variety of structures, no matter structures it is more it is high,
Layer is mostly complicated, and also no matter whether building has pile foundation, can carry out consolidation process by this programme.
Ruggedized construction of the invention is simple, and pile foundation construction can not be carried out by evading interior completely, completely solves house pile foundation
Lower section water-rich sand layer has been evaded the pile foundation and internal structure of existing building completely, has been avoided because of shield-tunneling construction dehydration settlement issues
Existing building is damaged, the complete preservation integrality and safety of existing building has a great promotion price
Value.
Detailed description of the invention
Fig. 1: ruggedized construction main view of the invention；
Fig. 2: ruggedized construction schematic top plan view of the invention；
Wherein: 1-pipe tunnel；2-horizontal pipelines；3-reinforcing piles；4-linking beams；5-steel cofferdams；6-existing build
Build object；7-pile foundations.
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Such as Fig. 1~2, consolidation process is carried out for existing building 6 is worn under shield tunnel, if 6 lower section of existing building
Soil layer is water-rich sand layer, in order to avoid occurring the excessive caused subsurface layer problem of precipitation in the construction process, needs to exist in advance
The both lateral sides of existing building 6 are constructed water-stop curtain, and the water-stop curtain of the present embodiment is by 1 meter of existing building 6
Then interior inserting piling mini-valve tube in spacing surrounding soil carries out consolidation process to the soil body by way of slip casting.
If the soil body of 6 lower section of existing building is not rich water soil layer, with regard to the construction without carrying out water-stop curtain.Reinforce knot
Structure is actually portal-framed structure, including being located at the vertical supporting structure of 6 both lateral sides of existing building and being located at existing building
The intracorporal bracing structure of soil between above 6 lower section of object and shield tunnel.As shown in Fig. 1~2, the present embodiment is perpendicular in construction
To before support construction, it is used as operation platform in the both lateral sides construction steel cofferdam 5 of existing building 6 in advance, then in steel cofferdam 5
Interior inserting piling reinforcing pile 3, more reinforcing piles 3 reserve 1m or so along shield tunnel direction of travel arranged for interval, in the upper end of reinforcing pile 3
Reinforcing bar, prepare for subsequent construction continuous beam 4.
As shown in Fig. 2, the bracing structure of the present embodiment includes the more longitudinal directions along shield tunnel direction of travel arrangement
The horizontal pipeline 2 of the shield tunnel direction of travel vertical with Duo Gen of pipeline 1, pipe tunnel 1 and horizontal pipeline 2 are to be evenly equipped on tube body
The grouting pipe of multiple slip casting through-holes, pipe tunnel 1 and horizontal pipeline 2 be criss-cross arranged by into pipe slip casting link one
Act the reinforced concrete structure for forming support existing building 6.Pipe tunnel 1 and horizontal pipeline 2 are to be arranged in existing building 6
Grouting pipe in 7 gap of lower section pile foundation.
Utilize automatic guide drilling device subdrilling anchor cable hole, then the porose pipe tunnel 1 of threading and horizontal pipeline 2, Xiang Heng
Anchor cable is worn into pipeline 2, anchor cable and the tension ground tackle in steel cofferdam 5 are attached.To all pipe tunnels 1 and laterally
After the completion of pipeline 2 is constructed, tensioning is carried out to anchor cable first with tension ground tackle and is fixed, slip casting is then carried out into horizontal pipeline 2, is infused
Slurry slurries are penetrated by slip casting through-hole in the soil body of 6 lower section of existing building, reinforce to the soil body, slurry stream is allowed to bury
Body, which is formed, stops " soil " curtain ", barrier causes the anchor cable top soil body to settle because of the sedimentation of anchor cable lower part.
Close to 6 inside of existing building, there are 3 meters of wide neutral gears to perform linking beam 4, and the width size of linking beam 4 depends on anchor cable
Stretching force size, it is therefore an objective to anchorage cable stretching reduction is resisted to the moment of flexure of reinforcing pile 3, linking beam 4 is reinforced concrete structure, in
Portion's reinforcing bar is mutually bound with the reserved 1 meter of high reinforcing bar of pile foundation is reinforced.As shown in Figure 1, linking beam 4 pour it is ipsilateral in existing building 6
3 upper end of row's reinforcing pile.
Some pours and is fixed in linking beam 4 for the anchor cable of the present embodiment and 2 both ends of lateral steel pipe, in order to avoid stifled
Hole, it is the imporous closed conduct structure in surface that lateral steel pipe 2, which extends to the tube body in continuous beam 4,.
When practice of construction: 1, being used as operation platform in the both lateral sides construction steel cofferdam 5 of existing building 6；
2, with the construction of progress reinforcing pile 3 in steel cofferdam 5,3 stake top reinforcing bar of reinforcing pile is reserved；
3, it drills, horizontal pipeline 2 is worn into drilling and indulges to the soil body between existing building 6 and shield tunnel
To pipeline 1, anchor cable is worn into horizontal pipeline 2；
4,4 reinforcing bar of linking beam is bound at 3 stake top of reinforcing pile, by 4 reinforcing bar of linking beam and stake top reinforcing bar binding and fixing one
It rises, pours linking beam 4, the imporosity at 2 both ends of horizontal pipeline partially passes through linking beam 4；
5, after linking beam semi-finals degree reaches requirement, start stretch-draw anchor, after reaching design requirement, to horizontal pipeline 2 and indulge
The slip casting into pipeline 1 after slip casting reaches design strength, completes the construction of ruggedized construction.
As shown in Fig. 2, the longitudinal direction of the present embodiment refers to that the direction of travel of shield tunnel, i.e. left and right directions in Fig. 2 laterally refer to
The direction of the traveling of vertical shield tunnel, i.e. up and down direction in Fig. 2.
Existing building is passed through in the shield tunnel front of the present embodiment description, if existing building is in shield tunnel two
And shield tunnel the position of side is not easy to arrangement ruggedized construction, can also actually arrange ruggedized construction on shield tunnel, i.e.,
Cross-coincidence position not inserting piling reinforcing pile, evades the access position of shield tunnel, in order to guarantee the stability of entire ruggedized construction,
The inserting piling range of other reinforcing piles can be appropriately extended, extend the length of linking beam.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (10)
1. wearing the ruggedized construction of existing building under a kind of shield tunnel, it is characterised in that: horizontal including being located at existing building (6)
Vertical supporting structure to two sides and the bracing structure between existing building (6) and shield tunnel；Described
Vertical supporting structure is inserting piling in the intracorporal piling strtucture of shield tunnel travelling route both lateral sides soil；The cross-brace knot
Structure transverse ends are fixed on the portal-framed structure that support existing building (6) is formed in the vertical supporting structure of two sides, and two sides are vertical
The tension structure that transverse stretching is carried out to bracing structure is provided between support construction.
2. wearing the ruggedized construction of existing building under a kind of shield tunnel as described in claim 1, it is characterised in that: described
Bracing structure includes more and advances along the pipe tunnel (1) of shield tunnel direction of travel arrangement and more vertical shield tunnels
The horizontal pipeline (2) in direction；The pipe tunnel (1) and horizontal pipeline (2) is to be evenly equipped with multiple slip casting through-holes on tube body
Grouting pipe, pipe tunnel (1) and horizontal pipeline (2) be criss-cross arranged by into pipe slip casting link together to form support
The reinforced concrete structure of existing building (6).
3. wearing the ruggedized construction of existing building under a kind of shield tunnel as claimed in claim 2, it is characterised in that: described
Tension structure includes the anchor cable being arranged in horizontal pipeline (2)；The both ends of the anchor cable vertical supporting knot with two sides respectively
Structure is fixedly connected.
4. wearing the ruggedized construction of existing building under a kind of shield tunnel as claimed in claim 2, it is characterised in that: described
Vertical supporting structure includes more piece reinforcing piles (3) of the inserting piling in existing building (6) two sides, and more reinforcing piles (2) are along shield tunnel
Road direction of travel arranged for interval.
5. wearing the ruggedized construction of existing building under a kind of shield tunnel as claimed in claim 4, it is characterised in that: described
Vertical supporting structure includes pouring in the linking beam (4) on the ipsilateral row's reinforcing pile (3) of existing building (6).
6. wearing the ruggedized construction of existing building under a kind of shield tunnel as claimed in claim 5, it is characterised in that: described
The both ends of lateral steel pipe (2) extend respectively in linking beam (4) and pour in continuous beam (4).
7. wearing the ruggedized construction of existing building under a kind of shield tunnel as claimed in claim 6, it is characterised in that: described
It is the imporous closed conduct structure in surface that lateral steel pipe (2), which extends to the tube body in continuous beam (4),.
8. wearing the ruggedized construction of existing building under a kind of shield tunnel as claimed in claim 4, it is characterised in that: described
Vertical supporting structure further includes the steel cofferdam (5) positioned at existing building (6) both lateral sides；Reinforcing pile (3) inserting piling in
In the soil body in steel cofferdam (5).
9. wearing the ruggedized construction of existing building under a kind of shield tunnel as described in claim 1, it is characterised in that: further include
The more mini-valve tubes between vertical supporting structure and existing building (6), more mini-valve tubes are along shield tunnel direction of travel
Arranged for interval.
10. wearing the ruggedized construction of existing building under a kind of shield tunnel as described in claim 1, it is characterised in that: described
Pipe tunnel (1) and horizontal pipeline (2) be the Grouting Pipe being arranged in below existing building (6) in pile foundation (7) gap
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137520.XA CN109779636B (en) | 2019-02-25 | Reinforcing structure for shield tunnel to penetrate through existing building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137520.XA CN109779636B (en) | 2019-02-25 | Reinforcing structure for shield tunnel to penetrate through existing building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109779636A true CN109779636A (en) | 2019-05-21 |
| CN109779636B CN109779636B (en) | 2024-06-07 |
Family
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031809A (en) * | 2020-09-17 | 2020-12-04 | 西南交通大学 | Underground engineering structure meeting double-zero conditions and construction method |
| CN112459796A (en) * | 2020-11-12 | 2021-03-09 | 上海隧道工程有限公司 | Construction method for pipe jacking crossing section crossing underground structure building |
| CN112459790A (en) * | 2020-11-12 | 2021-03-09 | 上海隧道工程有限公司 | Pre-protection structure and pre-protection method for tunnel crossing section before crossing underground structure building |
| CN114411761A (en) * | 2022-02-28 | 2022-04-29 | 甘肃第七建设集团股份有限公司 | Advanced pre-support system for planned subway tunnel during construction of newly-built building and pre-support construction method |
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| CN108119149A (en) * | 2018-01-02 | 2018-06-05 | 兰州理工大学 | The tunnel support structure and construction method of existing building are worn under a kind of |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031809A (en) * | 2020-09-17 | 2020-12-04 | 西南交通大学 | Underground engineering structure meeting double-zero conditions and construction method |
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| CN112459796A (en) * | 2020-11-12 | 2021-03-09 | 上海隧道工程有限公司 | Construction method for pipe jacking crossing section crossing underground structure building |
| CN112459790A (en) * | 2020-11-12 | 2021-03-09 | 上海隧道工程有限公司 | Pre-protection structure and pre-protection method for tunnel crossing section before crossing underground structure building |
| CN114411761A (en) * | 2022-02-28 | 2022-04-29 | 甘肃第七建设集团股份有限公司 | Advanced pre-support system for planned subway tunnel during construction of newly-built building and pre-support construction method |
| CN114411761B (en) * | 2022-02-28 | 2023-09-22 | 甘肃第七建设集团股份有限公司 | Advanced pre-supporting system and method for subway tunnel to be built in new building construction |
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