CN209412830U - A kind of subway transfer station interconnection cheats support construction in hole - Google Patents
A kind of subway transfer station interconnection cheats support construction in hole Download PDFInfo
- Publication number
- CN209412830U CN209412830U CN201820588384.7U CN201820588384U CN209412830U CN 209412830 U CN209412830 U CN 209412830U CN 201820588384 U CN201820588384 U CN 201820588384U CN 209412830 U CN209412830 U CN 209412830U
- Authority
- CN
- China
- Prior art keywords
- reinforced concrete
- interconnection
- bottom plate
- structure bottom
- foundation pit
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 30
- 241000209202 Bromus secalinus Species 0.000 title abstract description 5
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000004567 concrete Substances 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 abstract description 13
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides in a kind of subway transfer station interconnection hole and cheats support construction, support construction includes supporting rod, Reinforced Concrete Corbels and main structure bottom plate, main structure bottom plate includes pouring structure bottom plate and after-pouring structure base slab, Reinforced Concrete Corbels have been poured along interconnection direction compartment of terrain above main structure bottom end having poured, one end of supporting rod is supported on foundation pit enclosure structure, the other end is supported on Reinforced Concrete Corbels, it is exceeded in crater wall deflection at present to solve, the temperature pier measure taken before interconnection excavation of foundation pit, construction requirement is high, cost input is big, the problems such as being unfavorable for environmental protection.Belong to subway work field.
Description
Technical field
The utility model relates to cheat support construction in a kind of subway transfer station interconnection hole, belong to subway work field.
Background technique
Usual subway transfer station interconnection is the construction after carry out interconnection after the completion of the main structure construction of station again,
It constructs according to this sequential organization, although reducing the construction safety wind of station main body foundation pit and interconnection foundation pit to a certain extent
Danger, but when interconnection is constructed must be additionally carried out enclosed structure construction, considerably increase project cost, at the same the construction period also compared with
It is long.It is 3, No. 5 line transfer stations that Hangzhou Subway SG5-9, which marks Shen Banlu Station Design, and station is arranged in inverted " t " font, No. 3 line vehicles
It stands and is arranged along the north and south Shen Banlu, be F3/B3 structure, No. 5 line stations are two layers of underground knot along across the Shen Banlu arrangement of East and West direction
Structure.3, one of interconnection is set between No. 5 line stations, and interconnection height difference is 4.91m (- 13.050m~-17.960m), and longitudinal slope is
38.272‰.The station pit excavates the mode organizing construction that proposed adoption main body foundation pit and interconnection foundation pit excavate simultaneously.The vehicle
Link lines design of standing be inner concave curve trend, through crater wall in design checking interconnection excavation by earth lateral pressure very
Greatly, crater wall deflection is exceeded, therefore temperature pier measure must be taken before interconnection excavation of foundation pit, guarantees the safety of excavation of foundation pit
Property.Hole supporting generally uses piles in row, cement mixing method, high-pressure rotary jet grouting pile, gravity type earth-retaining in usual such hole
The modes such as wall, but aforesaid way construction requirement is high, and cost input is big, is unfavorable for environmental protection.
Summary of the invention
The purpose of this utility model is that: it provides in a kind of subway transfer station interconnection hole and cheats support construction, to solve
Temperature pier measure exceeded in crater wall deflection at present, being taken before interconnection excavation of foundation pit, construction requirement is high, cost input
Greatly, it is unfavorable for the problems such as environmental protection.
To solve the above problems, cheating support construction, including branch in such a subway transfer station interconnection hole of proposed adoption
Strut member, Reinforced Concrete Corbels and main structure bottom plate, main structure bottom plate include pouring structure bottom plate and after-pouring knot
Structure bottom plate has poured Reinforced Concrete Corbels along interconnection direction compartment of terrain above main structure bottom end having poured,
One end of supporting rod is supported on foundation pit enclosure structure, and the other end is supported on Reinforced Concrete Corbels.
In aforementioned support construction, the Reinforced Concrete Corbels replace cloth according to the spacing of 2m, 4m along interconnection direction
It sets；
Supporting rod end face is vertical with support bracket side wall and is close to closely knit, it is ensured that supporting rod uniform force；Reinforcing bar is mixed
Solidifying clay ox leg setting and main structure bottom end top surface, when construction, are allowed to effectively be connected as with bracket by bottom plate reserved steel bar
With entirety；Supporting rod is generally steel pipe, also can be reinforced concrete support rod piece；Reinforced Concrete Corbels are generally cuboid
Structure, length × width × height are 1m × 1m × 1.2m；When interconnection excavation of foundation pit, supporting rod, Reinforced Concrete Corbels, master are utilized
The horizontally-supported stress system that body structure base slab is formed bears two lateral earth pressure of crater wall, it is ensured that the safety of excavation of foundation pit.
Compared with prior art, the utility model advantage is as follows:
1. the support construction cheated in interconnection hole is constituted by supporting rod, Reinforced Concrete Corbels, main structure bottom plate,
Support construction stress is clear, and structure is simple, and construction requirement is low, and cost input is small, is conducive to environmental protection；
2. the horizontal support structure makes full use of the pressure of the two sidewalls of pouring structure bottom plate counteracting, reduce the throwing of material
Enter, brief cost；
3. difficulty of construction is small, construction quality is easy to control for the support construction compares conventional support pattern.
Detailed description of the invention
Fig. 1 is the overlooking structure diagram of Hangzhou Subway SG5-9 Biao Shenban way station in the utility model embodiment；
Fig. 2 is the partial enlarged view in Fig. 1 at B；
Fig. 3 is the cross-sectional view in Fig. 2 at A-A；
Wherein, appended drawing reference 1- supporting rod, 2- Reinforced Concrete Corbels, 3- main structure bottom plate, 31- pouring structure
Bottom plate, 32- after-pouring structure base slab, 4- foundation pit enclosure structure (diaphram wall), 5- get in touch with cable architecture, 6-10cm thickness C15 element
250 × 250 reinforced mesh of pneumatically placed concrete and 6.5@, the filling of 7- plain concrete.The station 8- main structure, the line underground of the station 9- 5
Two-layer structure, the line F3/B3 structure of the station 10- 3,11- get in touch with cable architecture sideline, 12- interconnection center line.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail, it should be understood that specific embodiment described herein is only to explain the utility model, not
For limiting the utility model.
Embodiment
As shown in Figure 1, the transfer station of 3, No. 5 lines is designed as at this by taking Hangzhou Subway SG5-9 Biao Shenban way station as an example,
The line of station 5 is underground two-layer structure, and the line of station 3 is F3/B3 structure, and interconnection is along the line of station 5 to No. 3 line transition
Connection, interconnection height difference are 4.91m (- 13.050m~-17.960m), and longitudinal slope is 38.272 ‰.
As shown in Figures 2 and 3, it present embodiments provides in a kind of subway transfer station interconnection hole and cheats support construction, it should
Structure is composite structure, including supporting rod 1, Reinforced Concrete Corbels 2 and main structure bottom plate 3, main structure bottom plate 3 include
Pouring structure bottom plate 31 and after-pouring structure base slab 32.1 one end of supporting rod is supported on foundation pit diaphram wall side wall, separately
One end is supported on 2 side wall of Reinforced Concrete Corbels, and 1 end face of supporting rod and 2 side wall of Reinforced Concrete Corbels answer perpendicular shape
State is simultaneously close to closely knit, it is ensured that 1 uniform force of supporting rod；Reinforced Concrete Corbels 2 are set to 31 end of pouring structure bottom plate
Top surface, when construction, are allowed to effectively connect with Reinforced Concrete Corbels 2 by 31 top surface reserved steel bar of pouring structure bottom plate；Support
Rod piece 1 isSteel pipe；Reinforced Concrete Corbels 2 are rectangular parallelepiped structure, and length × width × height is 1m × 1m × 1.2m；Contact
When line excavation of foundation pit, using supporting rod 1, Reinforced Concrete Corbels 2, pouring structure bottom plate 31 forms horizontally-supported beaer
System is to bear crater wall pressure at both sides, it is ensured that the safety of excavation of foundation pit.
Its construction method is as follows:
Step 1: it is excavated to main body foundation pit bottom absolute altitude, pouring for main body foundation pit range interior main body structure base slab is rapidly completed,
One section of width is reserved as post-cast strip in distance contact cable architecture sideline when pouring, and pouring structure bottom end is in armored concrete
Bracket position reserved steel bar.Reserved post-cast strip width are as follows: interconnection excavation of foundation pit depth+1.5m at this.
Step 2: as shown in Figure 1, poured main structure bottom end top surface along interconnection direction every one section away from
From one Reinforced Concrete Corbels of setting.Reinforced Concrete Corbels length × width × height is respectively 1m × 1m × 1.2m, each bracket
Between distance setting it is identical with temporary support distance between tie rods arrangement and palpus guarantee later period mechanical energy go on smoothly excavation of foundation pit.According to 2m,
The spacing of 4m is alternately arranged.When pouring structure bottom plate performs should at Reinforced Concrete Corbels setting reserved steel bar, it is ensured that steel
It is whole that reinforced concrete bracket reinforcing bar effectively connect formation with pouring structure baseplate reinforcing bar, it is ensured that stability under loading.
Step 3: after pouring structure bottom plate and Reinforced Concrete Corbels intensity reach the 85% of design strength, installation
Supporting rod, supporting rod areSteel pipe, supporting rod one end are supported on foundation pit diaphram wall side wall, the other end
Be supported on Reinforced Concrete Corbels side wall, by supporting rod, Reinforced Concrete Corbels and pouring structure bottom plate connect into it is whole
Body, as the horizontal support structure for bearing foundation pit pressure at both sides.
Step 4: excavating interconnection foundation pit, excavation slope is excavated by the gradient slope of 1:1, and excavating sideline distance has poured knot
The platform not less than 1.5m is reserved between structure bottom plate.Foundation pit uses stage excavation, every to excavate one layer, side slope hang 6.5@250 ×
250 reinforced mesh simultaneously spray 10cm thickness C15 element pneumatically placed concrete as slope surface provisional protection.
Step 5: contact cable architecture is performed, it is mixed using C20 element after interconnection structural strength reaches the 85% of design strength
Solidifying soil is filled the Delta Region between interconnection structure and side slope, filling to after-pouring structure base slab elevation of bottom.
Step 6: performing after-pouring structure base slab, and conserved, and after-pouring structure base slab reinforcing bar should be wanted by design specification
It asks and is effectively connect with pouring structure bottom end reserved steel bar.
Step 7: after concrete strength reaches the 85% of design requirement, the support of interconnection foundation pit and reinforced concrete are removed
Clay ox leg.Then carry out the construction of succeeding body Structural Engineering.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (2)
1. cheating support construction in a kind of subway transfer station interconnection hole, it is characterised in that: including supporting rod, armored concrete
Bracket and main structure bottom plate, main structure bottom plate include pouring structure bottom plate and after-pouring structure base slab, are pouring master
Reinforced Concrete Corbels, one end support of supporting rod have been poured along interconnection direction compartment of terrain above body structure base slab end
In on foundation pit enclosure structure, the other end is supported on Reinforced Concrete Corbels.
2. cheating support construction in a kind of subway transfer station interconnection hole according to claim 1, it is characterised in that: the steel
Reinforced concrete bracket is alternately arranged along interconnection direction according to the spacing of 2m, 4m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820588384.7U CN209412830U (en) | 2018-04-24 | 2018-04-24 | A kind of subway transfer station interconnection cheats support construction in hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820588384.7U CN209412830U (en) | 2018-04-24 | 2018-04-24 | A kind of subway transfer station interconnection cheats support construction in hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209412830U true CN209412830U (en) | 2019-09-20 |
Family
ID=67929206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820588384.7U Expired - Fee Related CN209412830U (en) | 2018-04-24 | 2018-04-24 | A kind of subway transfer station interconnection cheats support construction in hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209412830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343066A (en) * | 2018-04-24 | 2018-07-31 | 中铁二局第工程有限公司 | Hole support construction and excavation method in a kind of subway transfer station interconnection hole |
-
2018
- 2018-04-24 CN CN201820588384.7U patent/CN209412830U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343066A (en) * | 2018-04-24 | 2018-07-31 | 中铁二局第工程有限公司 | Hole support construction and excavation method in a kind of subway transfer station interconnection hole |
| CN108343066B (en) * | 2018-04-24 | 2023-11-17 | 中铁二局第一工程有限公司 | Subway transfer station tie line pit in pit supporting structure and excavation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111411993A (en) | Large-section tunnel supporting system penetrating through huge karst cave hall and construction method | |
| CN107313431B (en) | Close on not contour foundation pit method for synchronously constructing | |
| CN109778721A (en) | Synchronization of jacking up bridge top and the bottom structure carries out the method that bridge increases transformation | |
| CN105220703B (en) | Enclosing type deepwater platform construction method based on condition of sand backfilling balance method | |
| CN105201011A (en) | Complex anchored-plate retaining wall and construction method thereof | |
| CN103938634B (en) | A kind of deep foundation pit supporting structure and construction method | |
| CN102251530A (en) | Construction process of double-wall steel cofferdam for construction of pier bearing platform in main river water of Yellow River | |
| CN110306524A (en) | The foundation reinforcing structure and method of the Heavy Equipment-hoisting of the unclosed building of proximity | |
| CN205242436U (en) | Supplementary soleplate traded interim bearing structure who props during system was gone along with sb. to guard him to underground complex | |
| CN112575670B (en) | T-shaped rigid frame bridge suitable for tunnel to pass through giant karst cave and construction technology thereof | |
| CN109056790A (en) | Stake three layers of retaining wall structure of support and construction method | |
| CN111365017A (en) | Construction method of underground intercommunication tunnel | |
| CN113653105A (en) | Anti-floating system of existing subway structure and construction method thereof | |
| CN104652444A (en) | Construction method for overall reverse operation of ultra-large type deep foundation pit center island type alternative earth excavation | |
| CN209412830U (en) | A kind of subway transfer station interconnection cheats support construction in hole | |
| CN204919602U (en) | Compound anchored retaining wall by tie rods | |
| CN105804101B (en) | Reduce off-loading supporting and retaining system system and construction method and the application of retaining structure stress | |
| CN103821038A (en) | Repairing and reinforcing structure for upwarping of high-speed railway subgrade | |
| CN103924981B (en) | Single-arch large span shallow-depth-excavation tunnel reinforcement system and construction method thereof | |
| CN206157495U (en) | Moderate -low speed magnetic levitation double -line compound framing type support rail girder construction of location pile foundation of filling | |
| CN206127736U (en) | Moderate -low speed magnetic levitation double -line compound framing formula support rail roof beam transition section structure of location pile foundation that fills | |
| CN205259051U (en) | Railway existing line large -span crossbeam system of making somebody a mere figurehead | |
| CN106283949B (en) | Medium-and low-speed maglev traffic engineering single line embankment location independence pier stud type support rail girder construction | |
| CN205857198U (en) | Subway station construction main body building enclosure | |
| CN112627002B (en) | Continuous beam bridge suitable for tunnel to pass through giant karst cave and construction technical method thereof |
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: 20190920 |