CN209636858U - A kind of short underpass structure of newly-built basement and existing subway station - Google Patents
A kind of short underpass structure of newly-built basement and existing subway station Download PDFInfo
- Publication number
- CN209636858U CN209636858U CN201920103285.XU CN201920103285U CN209636858U CN 209636858 U CN209636858 U CN 209636858U CN 201920103285 U CN201920103285 U CN 201920103285U CN 209636858 U CN209636858 U CN 209636858U
- Authority
- CN
- China
- Prior art keywords
- short
- underpass
- horizontal beam
- structure according
- collar tie
- 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.)
- Expired - Fee Related
Links
- 238000009412 basement excavation Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 6
- 238000007569 slipcasting Methods 0.000 description 13
- 238000005553 drilling Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 244000144985 peep Species 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides a kind of short underpass structure that newly-built basement is connect with existing subway station, the structure includes several horizontal beams and two collar tie beams, horizontal beam extends along underpass excavation direction and is uniformly distributed in the upside and the left and right sides of excavated section, and collar tie beam is located on the section at horizontal beam both ends.The utility model solves newly-built basement and existing subway station connectivity problem, construction method belongs to subsurface excavation method, it avoids the possible traffic jam of open-cut, earth volume huge and the series of problems such as noise is big, more secure working face is provided for engineering construction, effectively enhance the stability in tunnel.
Description
Technical field
The utility model belongs to construction technology in geotechnical engineering field, and it is logical to be related to the short underground connected between two underground structures
A kind of road structure, and in particular to the short underpass connectivity structure between newly-built basement and existing subway station.
Background technique
Develop people to utilizing more and more, social development with causing city overhead on city space with society
Between heavy congestion, people in order to improve this crowded space, constantly build high buildings and large mansions while also sufficiently city
The underground space uses.Generally high-rise and super high rise building can all build underground structure such as underground parking, underground
Commercial street, underground supermarket etc., have also built subway in city in order to alleviate the traffic problems of congestion, and subway will also tend to and week
The underground structure on side is closely linked.But subway and the building on periphery are not often to build together, it is mostly built
At underground structure construction when often the connection with subway is not taken into account, in order to be built with periphery when subway station is built
It builds object underground and generates connection, generally require to connect with periphery underground structure by underpass.
However, often surrounding enviroment are complicated, and such as doing cut and cover tunneling tunnel can break when being built in city and building subterranean tunnel
Bad earth's surface traffic brings great congestion to urban transportation, does shallow mining method tunnel its stability of strict control again, to applying
Work brings great challenge.Therefore, by pre-grouting reinforcing must be done around tunneling, consolidating surrounding soil in advance in advance
It is significant in Tunnel Engineering construction.
Utility model content
In order to overcome the shortage of prior art, the utility model provides a kind of newly-built basement and applies with what existing subway station was connected to
Work technology, the construction of connection underpass is difficult between two underground structures to solve in Practical Project construction, and when constructing tunnel exists
Very big security risk the problem of and its stability problem, keep engineering practice of construction more secure etc..
The utility model realizes that the technical solution of above-mentioned purpose is as follows:
A kind of short underpass structure of newly-built basement and existing subway station, which is characterized in that the structure includes several
Horizontal beam and two collar tie beams, the horizontal beam along underpass excavate direction extends and be uniformly distributed in the upside of excavated section with
The left and right sides, the collar tie beam are located on the section at horizontal beam both ends.
Further, the horizontal beam is connected with collar tie beam, and horizontal beam is vertical with collar tie beam cross section.
Horizontal beam cross section is circle, and horizontal beam diameter is 150-300mm, and the center of horizontal beam is not away from being preferably greater than its diameter
2.0 times.
Further, the length of the short underpass structure is not more than 15 meters.
Further, the ring beam reinforcing steel bar should meet existing national standards " Code for design of concrete structures " GB 50010
Constructional reinforcement requirement to beam.
Further, the horizontal beam is mainly made of injected hole, fashioned iron and the slurries of solidification, and the fashioned iron is inserted into slip casting
Then Kong Zhong injects slurries in injected hole.
The fashioned iron is selected from H profile steel or channel steel, and fashioned iron is arranged along injected hole central axes.
Preferably, injected hole 150-300mm, preferably 200mm are protruded in the fashioned iron both ends, and connect with collar tie beam.
It is highly preferred that being disposed on fashioned iron to middle bracket, the quantity and specification of the centering bracket are according to injected hole
Length and size determine.
Further, the section of the short underpass is box, round or ellipse.
The construction method of the short underpass structure of the newly-built basement and existing subway station of the utility model specifically:
1) drilling of the injected hole of underpass and horizontal beam is determined first between existing subway station and newly-built basement
Position；
2) drilling machine installation is in place, carries out the drilling construction of single injected hole；
3) fashioned iron is inserted into injected hole；
4) Grouting Pipe is arranged in and is formed by progress slip casting operation in injected hole, and plug-hole forms horizontal beam；
And 4) 5) step 2), 3) is repeated, until setting horizontal beam number is completed in construction；
6) after grout curing in all injected holes, the construction of collar tie beam is carried out according to code requirement；
7) underpass is excavated according to code requirement after collar tie beam reaches requirement of strength design, until excavating to the ground of setting
Layer strengthening length.
In the utility model, to prevent string hole, the 2) into the 4) step, the method for taking the job-hopping construction of one hole of interval,
After drilling construction and the slip casting operation of completing first slip casting duct, the position for being spaced a duct carries out repeating construction and work
Industry, until completing slip casting duct drilling construction and the slip casting operation of all settings.
The utility model, the drilling construction include that the upside that section is moved towards along engineering excavation and the left and right sides carry out
The directional drilling and scarfing cinder parallel with design tunnel forms the construction method in duct.
The 3) fashioned iron described in step be selected from H profile steel or channel steel.
Wherein, the 4) slip casting operation specific method described in step be: slurries observation is reserved at the top of injected hole entrance end
Hole, carry out slip casting using grouting pump: one end low from injected hole is toward high one end slip casting, until in the slurries peep hole of entrance end
Until flowing out denseer slurries, the injected hole for two sides of first constructing, to intermediate direction propelling construction.
Further, the slip casting operation can be handled for single fluid grouting or two fluid grouting.
Further, the slip casting operation is once grouting or multiple slip casting.
In the utility model, the construction method of the collar tie beam is processing assembling reinforcement first, then installation template, to mould
After plate is installed, casting concrete, form removal when concrete strength reaches 2.5Mpa, last curing concrete, coagulation
Soil maintenance covers sprinkling maintenance using plastic cloth or geotextiles, keeps wet.
It connect and asks with existing subway station the beneficial effects of the utility model are: the utility model solves newly-built basement
Topic, solves the problems such as cut and cover tunneling is to earth's surface bring traffic jam and noise, provides for engineering construction more secure
Working face can provide the working face that staff is safer in Practical Project construction by the application, effectively enhance tunnel
Stability.
Detailed description of the invention
Fig. 1 is box schematic diagram of underground passage structure.
Fig. 2 is the A-A' sectional view of Fig. 1；
Fig. 3 is horizontal beam drawing；
In figure, the ground 1-；2- underpass；3- horizontal beam；4- collar tie beam；The existing subway station of 5-；6- creates basement；7- type
Steel；8- slurries；9- centering bracket.
Specific embodiment
The structure of the utility model is further detailed with reference to the accompanying drawing, these attached drawings are the utility model
Preferred specific embodiment, be not limitations of the present invention.
The short underpass structure of a kind of newly-built basement and existing subway station as shown in Figs. 1-2, if the structure includes
Solid carbon dioxide flat-topped ridge 3 and two collar tie beams 4, horizontal beam 3 along underpass 2 excavate direction extends and be uniformly distributed on the upside of excavated section with
The left and right sides, collar tie beam 4 are located on the section at 3 both ends of horizontal beam, and horizontal beam 3 is connected with collar tie beam 4, horizontal beam 3 with
The cross section of collar tie beam 4 is vertical.
Horizontal beam drawing as shown in Figure 3, horizontal beam 3 are mainly made of the slurries 8 of injected hole, fashioned iron 7 and solidification, type
Steel 7 is inserted into injected hole, and slurries 8 are then injected in injected hole, and fashioned iron 7 is arranged along injected hole central axes.The diameter of horizontal beam 3
For 150mm, the center of horizontal beam 3 is away from for 300mm；Fashioned iron 7 is H profile steel, fashioned iron specification are as follows: 100*100*6*8, Unit Weight are
Duct 200mm is protruded at 17.2kg/m, area of section 21.9mm2,7 both ends of fashioned iron；4 width of collar tie beam is 300mm, is highly
200mm。
Applying to the newly-built basement of the utility model and the short underpass structure of existing subway station with reference to the accompanying drawing
Work method is specifically described, construction method are as follows:
1) underpass 2 and injected hole bore position are determined first between existing subway station 5 and newly-built basement 6；
2) drilling machine installation is in place, carries out the drilling construction of single injected hole；
3) fashioned iron 7 is inserted into injected hole；
4) Grouting Pipe is arranged in and is formed by progress slip casting operation in injected hole, and plug-hole forms horizontal beam；
And 4) 5) step 2), 3) is repeated, until the quantity of setting horizontal beam 3 is completed in construction；
6) after the solidification of all injected hole slurries 8, the construction of collar tie beam 4 is carried out according to code requirement；
7) underpass 2 is excavated according to code requirement after collar tie beam 4 reaches requirement of strength design, until excavating to setting
Stratum consolidation length.
The utility model can also have other a variety of specific embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art can make various corresponding changes and modifications, but these phases according to the utility model
The change and modification answered all should belong to the protection scope of the utility model claims.
Claims (10)
1. the short underpass structure of a kind of newly-built basement and existing subway station, which is characterized in that if the structure includes solid carbon dioxide
Flat-topped ridge and two collar tie beams, the horizontal beam extend along underpass excavation direction and are uniformly distributed in the upside and a left side of excavated section
Right two sides, the collar tie beam are located on the section at horizontal beam both ends.
2. short underpass structure according to claim 1, which is characterized in that the horizontal beam is connected with collar tie beam
It connects, horizontal beam is vertical with collar tie beam cross section.
3. short underpass structure according to claim 1 or 2, which is characterized in that the horizontal beam cross section is circle
Shape, horizontal beam diameter are 150-300mm, and the center of horizontal beam is away from 2.0 times no more than its diameter.
4. short underpass structure according to claim 1, which is characterized in that the underpass structure length is not more than
15 meters.
5. short underpass structure according to claim 1, which is characterized in that the horizontal beam is mainly by injected hole, type
Steel and slurries composition.
6. short underpass structure according to claim 5, which is characterized in that in the fashioned iron insertion injected hole, then
Slurries are injected in injected hole.
7. short underpass structure according to claim 5 or 6, which is characterized in that protrude injected hole in the fashioned iron both ends
150-300mm, and connect with collar tie beam.
8. short underpass structure according to claim 5 or 6, which is characterized in that be disposed on fashioned iron to middle bracket.
9. short underpass structure according to claim 1, which is characterized in that the section of the short underpass is case
Type, round or ellipse.
10. short underpass structure according to claim 5, which is characterized in that the fashioned iron is selected from H profile steel or slot
Steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920103285.XU CN209636858U (en) | 2019-01-22 | 2019-01-22 | A kind of short underpass structure of newly-built basement and existing subway station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920103285.XU CN209636858U (en) | 2019-01-22 | 2019-01-22 | A kind of short underpass structure of newly-built basement and existing subway station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209636858U true CN209636858U (en) | 2019-11-15 |
Family
ID=68478702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920103285.XU Expired - Fee Related CN209636858U (en) | 2019-01-22 | 2019-01-22 | A kind of short underpass structure of newly-built basement and existing subway station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209636858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518722A (en) * | 2019-01-22 | 2019-03-26 | 云南省建设投资控股集团有限公司 | The short underpass structure and its construction method of newly-built basement and existing subway station |
-
2019
- 2019-01-22 CN CN201920103285.XU patent/CN209636858U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518722A (en) * | 2019-01-22 | 2019-03-26 | 云南省建设投资控股集团有限公司 | The short underpass structure and its construction method of newly-built basement and existing subway station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191115 |