CN208168891U - A kind of heavy grade underground station bilayer channel step liner structure - Google Patents
A kind of heavy grade underground station bilayer channel step liner structure Download PDFInfo
- Publication number
- CN208168891U CN208168891U CN201820163181.3U CN201820163181U CN208168891U CN 208168891 U CN208168891 U CN 208168891U CN 201820163181 U CN201820163181 U CN 201820163181U CN 208168891 U CN208168891 U CN 208168891U
- Authority
- CN
- China
- Prior art keywords
- channel
- abutment wall
- heavy grade
- lining
- lower channel
- 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.)
- Active
Links
- 238000010276 construction Methods 0.000 abstract description 28
- 239000004567 concrete Substances 0.000 abstract description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000009415 formwork Methods 0.000 abstract description 5
- 239000004576 sand Substances 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Abstract
The utility model discloses a kind of heavy grade underground station bilayer channel step liner structure, the double-deck channel preliminary bracings（1）After the completion, first construct lower channel bottom plate（2）Armored concrete；Then in lower channel abutment wall（4）The two sides construction small abutment wall of step（3）；Then combined steel is erected, lower channel abutment wall of constructing（4）With lower channel top plate（5）Armored concrete.After lower channel lining cutting is completed and reaches design strength, in upper channel abutment wall（7）The two sides construction small abutment wall of upper channel（6）；Then the seperated simple formwork jumbo of pin-connected panel is assembled and sets up, upper channel abutment wall of constructing（7）With upper channel arch（8）Armored concrete.The utility model successfully solves heavy grade underpass lining construction template erection built on the sand and lining trolley external force traction shifts the big technical problem of security risk, and the utility model is suitable for the heavy grade bilayer underpass lining construction that the gradient is 15 °~30 °.
Description
Technical field
The utility model relates to a kind of heavy grade underground station bilayer channel step liner structures.
Background technique
Heavy grade underpass is commonly used for the entrance of the underground engineerings such as market place builet below the ground, subway station.Past, due to ground
Down space development of exploitation level is low, and such underground engineering buried depth is all shallower, and entrance often uses cut and cover tunneling, and general
For single layer structure.With the raising to underground space development of exploitation level, the buried depth of underground engineering is increasing, then uses open cut
Method construction cost, in terms of it is all more and more uncontrollable, be necessarily required to take shallow mining method.Meanwhile in order to same
It solves the problems, such as that import and export separates in one channel, double-layer structure need to be used.The tunneling of this heavy grade double-layer structure underpass
Method construction, not only excavation difficulty is larger, and lining construction also faces larger technical problem.
Heavy grade underpass lining construction uses integrated hydraulic lining trolley difficulty of construction since the channel gradient is excessive
It is very big.Firstly, integrated hydraulic lining trolley supports built on the sand in heavy grade slope surface, it is difficult to ensure that construction safety.Secondly, whole
Voluntarily climbing capacity is generally 3% to body hydraulic lining trolley maximum（1.7°）Left and right, and the heavy grade underpass gradient reaches
40%~50%（24 °~30 °）, lining trolley can not voluntarily climb displacement, need to use very big external force traction that could shift, construct
Security risk is big.Therefore, a kind of construction method suitable for heavy grade underpass lining cutting need to be found, to solve heavy grade underground
There are template erections for channel lining construction built on the sand and the big technical problem of lining trolley external force traction displacement security risk.
Summary of the invention
The technical problems to be solved in the utility model is：A kind of step lining cutting of heavy grade underground station bilayer channel is provided
Structure keeps sidewall template support firm, and lining trolley displacement avoids taking external force traction scheme, eliminates safe hidden trouble, it is ensured that apply
Work safety.
A kind of heavy grade underground station bilayer channel step liner structure, the preliminary bracing including surrounding entire channel,
It is lower channel bottom plate above preliminary bracing bottom, lower channel bottom plate two sides are the small abutment wall of step, the small abutment wall of step
Top lining cutting lower channel abutment wall, lower channel abutment wall top connect lower channel top plate, and channel is divided by lower channel top plate
Upper layer and lower layer, upper channel two sides are the small abutment walls of upper channel, are upper channel abutment wall and upper layer above the small abutment wall of upper channel
Channel arch.
The small abutment wall length of bench of step is 3m, and adjacent two steps height difference is 173cm, and it is logical that the small abutment wall of step exposes lower layer
5~8cm on the outside of road side wall lining.
The small abutment wall of upper channel is concordant on the outside of upper channel side wall lining.
The beneficial effects of the utility model：
Heavy grade bilayer underpass lining construction is difficult first if taking integrated hydraulic lining trolley by lining cutting
Trolley is firm in the support of heavy grade slope surface；Secondly, because the channel gradient is excessive, integrated hydraulic lining trolley can not voluntarily climb shifting
Position need to use very big external force traction trolley that could shift, and construction safety hidden danger is larger；In addition, in, the lining of short distance channel
It is also uneconomical to build construction usage integrated hydraulic lining trolley.And step lining construction method is taken, lower channel abutment wall two sides
The small abutment wall of step can ensure that sidewall template support is firm；Upper channel is applied using the seperated simple formwork jumbo lining cutting of pin-connected panel
Work, simple formwork jumbo assembling, disassembly engineering method are mature, safely controllable.As it can be seen that taking step lining construction and taking whole liquid
Pressure lining trolley is compared, and is had many advantages, such as safe and reliable and economical and practical.The utility model successfully solves the double-deck ground of heavy grade
Lower channel lining construction template erection is built on the sand and lining trolley external force traction shifts the big technical problem of security risk.This is practical
The novel heavy grade bilayer underpass lining construction for being 15 °~30 ° suitable for the gradient.
Detailed description of the invention
Fig. 1 is the utility model underground station bilayer channel step lining construction skiagraph.
Fig. 2 is A-A sectional view of Fig. 1, i.e. underground station bilayer channel step lining construction cross-sectional view.
Fig. 3 is B-B-section figure of Fig. 1, the i.e. small abutment wall front elevation of underground station bilayer channel step lining construction.
Specific embodiment
The embodiments of the present invention：It is 30 ° of channel out of the station that the design of certain underground bus stop of high-speed railway, which has a gradient, is led to
Road is double-layer structure, and channel is completed after excavating, is divided into channel two layers using lower channel top plate 5, and upper channel is outbound logical
Road, wall are stalk, and top is circular arc fan shape；Lower channel is channel of entering the station, and wall is stalk, and top plate is surface plate.It should
The double-deck channel preliminary bracing measure has designed grid steel frame, gunite concrete for loopful, and arch wall position is additionally provided with steel mesh, hollow
Grouted anchor bar etc..The bilayer channel base plate, wall and top plate lining cutting are both designed as armored concrete.It is embodied as follows：
If attached drawing, 1 is the double-deck channel preliminary bracing；2 be lower channel bottom plate；3 be the small abutment wall of step；4 is logical for lower layer
Road abutment wall；5 be lower channel top plate；6 be the small abutment wall of upper channel；7 be upper channel abutment wall；8 upper channel arch.
After the completion of the double-deck channel preliminary bracing 1, lower channel bottom plate 2 and the small 3 lining cutting steel of abutment wall of two sides step are first bound
Muscle is poured 2 concrete of lower channel bottom plate；Then in 4 two sides of the lower channel abutment wall construction small abutment wall 3 of step；Then it binds
5 lining cutting reinforcing bar of lower channel abutment wall 4 and lower channel top plate erects combined steel, is poured lower channel abutment wall 4 and lower channel
5 lining concrete of top plate, while being poured 2 length of bench.It is logical on upper layer after lower channel lining cutting is completed and reaches design strength
7 two sides of the road abutment wall construction small abutment wall 6 of upper channel；Then upper channel abutment wall 7 and 8 lining cutting reinforcing bar of upper channel arch are bound,
The seperated simple formwork jumbo of pin-connected panel is assembled and set up, upper channel abutment wall 7 and 8 lining concrete of upper channel arch are poured.
Small 3 length of bench of abutment wall of step is 3m, and adjacent two steps height difference is 173cm, and the small abutment wall 3 of step exposes lower layer
6cm on the outside of 4 lining cutting of channel abutment wall.
Lower channel combined steel length is consistent with small 3 length of bench of abutment wall of step, is 3m, form height 1.5m.
The small abutment wall 6 of upper channel is highly 60cm than the advanced construction 12m of upper channel abutment wall 7, the small abutment wall 6 of upper channel
It is concordant on the outside of 7 lining cutting of upper channel abutment wall.
For upper channel using the simple formwork jumbo lining construction of seperated pin-connected panel, simple Schaltisch vehicle commander degree is 6m, so that
Upper and lower two layers of channel subsiding crack is consistent.
The double-deck channel lining concrete construction is all made of high pressure concrete delivery pump long-distance sand transport.Pouring concrete construction
In must control poring rate, shuttering supporting is secured, carries out related real time monitoring, monitoring measure, prevents that mould, quick-fried mould are run in generation
Situations such as.
Claims (4)
1. a kind of heavy grade underground station bilayer channel step liner structure, including the preliminary bracing around entire channel（1）,
It is characterized in that：Preliminary bracing（1）It is lower channel bottom plate above bottom（2）, lower channel bottom plate（2）Two sides are steps
Small abutment wall（3）, the small abutment wall of step（3）Top lining cutting lower channel abutment wall（4）, lower channel abutment wall（4）Top connects lower layer
Channel top plate（5）, lower channel top plate（5）Channel is divided into upper layer and lower layer, upper channel two sides are the small abutment walls of upper channel
（6）, the small abutment wall of upper channel（6）Top is upper channel abutment wall（7）With upper channel arch（8）.
2. heavy grade underground station bilayer channel according to claim 1 step liner structure, it is characterised in that：Upper layer
Channel arch（8）To be arc-shaped, lower channel top plate（5）It is plate shaped.
3. heavy grade underground station bilayer channel according to claim 1 step liner structure, it is characterised in that：Step
The small abutment wall of formula（3）Length of bench is 3m, and adjacent two steps height difference is 173cm, the small abutment wall of step（3）Expose lower channel abutment wall
（4）5~8cm on the outside of lining cutting.
4. heavy grade underground station bilayer channel according to claim 1 step liner structure, it is characterised in that：Upper layer
The small abutment wall in channel（6）With upper channel abutment wall（7）It is concordant on the outside of lining cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820163181.3U CN208168891U (en) | 2018-01-31 | 2018-01-31 | A kind of heavy grade underground station bilayer channel step liner structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820163181.3U CN208168891U (en) | 2018-01-31 | 2018-01-31 | A kind of heavy grade underground station bilayer channel step liner structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208168891U true CN208168891U (en) | 2018-11-30 |
Family
ID=64383887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820163181.3U Active CN208168891U (en) | 2018-01-31 | 2018-01-31 | A kind of heavy grade underground station bilayer channel step liner structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208168891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194105A (en) * | 2018-01-31 | 2018-06-22 | 中铁五局集团有限公司 | A kind of heavy grade underground station bilayer channel step lining construction method and its structure |
-
2018
- 2018-01-31 CN CN201820163181.3U patent/CN208168891U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194105A (en) * | 2018-01-31 | 2018-06-22 | 中铁五局集团有限公司 | A kind of heavy grade underground station bilayer channel step lining construction method and its structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103334422B (en) | Assembled embedded type prefabricated hollow underground continuous wall and construction method thereof | |
| CN101967985B (en) | Self-propelled inverted arch template construction method | |
| CN102839674B (en) | Support of Foundation Pit Excavation structure and construction method thereof on proximal head well shield tunnel | |
| CN102146796B (en) | Construction technology for inverted arch of two-track tunnel of high-speed railway | |
| CN104264688B (en) | Manually digging hole non-uniform pile support construction process | |
| CN103485288B (en) | A kind ofly pass through both wired double-deck jacking culvert construction technology | |
| CN106223967B (en) | A kind of great burying rectangle or class rectangle tunneling shield constructing device and method | |
| CN102704949A (en) | No-pull rod side wall construction method for underground tunnel and formwork trolley for construction | |
| CN102352590A (en) | Method for splicing highfill roadbed by adopting pile-sheet retaining wall | |
| CN103939113B (en) | A kind of outstanding rail construction trolley | |
| CN202596743U (en) | Formwork trolley for underground tunnel pull-rod-free side wall construction | |
| CN102817621B (en) | Comprehensive construction method applicable to controlling arch basement sedimentation for tunnel in unfavorable geological conditions | |
| CN103821523A (en) | Excavating method for extending existing single-hole two-driveway tunnel into four-driveway tunnel | |
| CN105201516A (en) | Subway station body structure and four-joint-arch PBA underground excavation construction method thereof | |
| CN113062354A (en) | Assembly method for prefabricated subway station of open-cut pile support system | |
| CN204343173U (en) | A kind of Segmental assembling bridge-erecting machine | |
| CN202865850U (en) | Near-end shield tunnel foundation pit excavation supporting structure | |
| CN201746843U (en) | High slope supporting and road retaining wall integrated structure | |
| CN208168891U (en) | A kind of heavy grade underground station bilayer channel step liner structure | |
| CN203334270U (en) | Mountable buried type prefabricated hollow underground diaphragm wall | |
| CN205036380U (en) | Block of four encircles PBA and secretly digs subway station major structure | |
| CN204492847U (en) | A kind of supporting and protection structure of underground space reverse construction | |
| CN206902783U (en) | For reducing the adjustable reinforcement and rectification structure of house differential settlement | |
| CN111022076B (en) | Construction method for large-span subway tunnel secondary lining vault by adopting split self-propelled form jumbo | |
| CN104695446A (en) | Basement support construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |