CN205954637U - Ensure safe braced system of " X " type bias voltage grade separation ring road foundation ditch construction - Google Patents
Ensure safe braced system of " X " type bias voltage grade separation ring road foundation ditch construction Download PDFInfo
- Publication number
- CN205954637U CN205954637U CN201620652679.7U CN201620652679U CN205954637U CN 205954637 U CN205954637 U CN 205954637U CN 201620652679 U CN201620652679 U CN 201620652679U CN 205954637 U CN205954637 U CN 205954637U
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- Prior art keywords
- foundation ditch
- foundation
- concrete
- pit enclosure
- bank
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Abstract
The utility model provides an ensure the safe braced system of " X " type bias voltage grade separation ring road foundation ditch construction, include foundation pit retaining structure, interim end -blocking wall, on the bank foundation ditch guan liang and the first layer concrete supports, on the bank in the foundation ditch support of second floor concrete and waist rail, cantilever foundation ditch go along with sb. To guard him under middle part reinforced concrete waist rail, three -dimensional reinforced concrete bracing, reinforced concrete bracing, the bank foundation ditch guanliang and the first layer concrete supports, embedded bar or later stage bar planting in the envelope. The utility model discloses an ensure the braced system of " X " type grade separation ring road foundation ditch synchronous construction safety of interim end -blocking wall both sides place discrepancy in elevation 10.5m, realized immersed tube tunnel " X " type grade separation ring road foundation ditch synchronous construction, guaranteed deep foundation pit construction safety for whole construction progress, practiced thrift construction cost, provide the reference frame for later stage similar operating mode foundation ditch construction.
Description
Technical field
This utility model belongs to engineering construction field open-cut foundation ditch engineering aspect, and be related to one kind guarantees to block wall both sides temporarily
The support system of " X " type interchange ramp foundation ditch synchronous construction safety of place discrepancy in elevation 10.5m.
Background technology
Domestic inland river immersed tube tunnel is mainly used in urban district and crosses river passage, in order to realize immersed tube under water complete intercommunicating overpass and with
Town road connects on the bank, sets cofferdam in Jiang Hai two sides, and structure built by opencut method of constructing in cofferdam.Immersed tube top surface is located at the river of rivers
Below bed erosion line, in cofferdam, riverbed and the periphery town road discrepancy in elevation are big, and are affected by surrounding building next-door neighbour's town road,
" X " type interchange ramp orthogonal points and the distance between structure built by opencut method termination in cofferdam lengthening, and then " X " type foundation ditch cannot be applied
Workshop ground the gradient slow down construction to structure built by opencut method create conditions.Consider on the bank with the place discrepancy in elevation, surrounding building under bank
With factors such as the distance between ring road orthogonal points, open-cut foundation ditch place limiting gradients, arrange at " X " type interchange ramp orthogonal points
Interim end-blocking wall, is divided into two or more single foundation ditches whole ring road and is constructed, a part is constructed on the coast,
Another part is constructed under bank, larger with the place discrepancy in elevation of foundation ditch under bank on the bank.
Nanchang City Hong Gu tunnel east bank is located at Ganjiang River east side old town, on the bank seven three enter everywhere open cut ring road with riverine in
Main road, Zhongshan Road West and Chaoyang continent Road connect.Eastern bank periphery grade elevation is 25.6m, and under bank, riverbed absolute altitude in foundation ditch termination is
3m, discrepancy in elevation 22.6m.Two of which ring road grade separation forms " X-type " foundation ditch, by setting interim end-blocking wall, " X-type " foundation ditch is divided into
Two foundation ditches under " herringbone " foundation ditch and bank on the bank, on the bank with foundation ditch site elevation difference 10.5m under bank, form on the bank
The bias foundation ditch of " herringbone " foundation ditch one side foundation pit enclosure structure ground-connecting-wall cantilever 10.5m.According to conventional construction organization scheme, bank
After the completion of under upper and bank, foundation ditch can not be constructed it is necessary to the foundation pit construction of interim end-blocking wall side is completed and backfilled simultaneously, side
Can carry out the construction of opposite side foundation ditch, but this organization scheme can not meet construction period it is impossible on schedule to riverine above it
Through street construction creates conditions, and has larger social influence.
Utility model content
The purpose of this utility model be for the interchange ramp orthogonal points both sides place discrepancy in elevation is big, surrounding building and ring road just
The factor such as the distance between intersection point is short causes the open-cut foundation ditch biasing and prior art not enough, provides one kind to guarantee to block temporarily
The support system of " X " type interchange ramp foundation ditch synchronous construction safety of wall both sides place discrepancy in elevation 10.5m.
Support system described in the utility model includes：Foundation pit enclosure structure, temporarily end-blocking wall, on the bank foundation ditch Guan Liang and first
Layer concrete supports, on the bank reinforced concrete waist rail in the middle part of second layer concrete support and waist rail, cantilever foundation pit enclosure in foundation ditch,
Pre- in foundation ditch Guan Liang and ground floor concrete support, building enclosure under three-dimensional armored concrete diagonal brace, armored concrete diagonal brace, bank
Bury reinforcing bar or later stage bar planting.
Foundation pit enclosure structure (1) is located at the both sides of structure built by opencut method, as a part for the support system of open-cut foundation ditch construction.
Interim end-blocking wall (2) is located in structure built by opencut method, and a foundation ditch is divided into two or more open-cut foundation ditch, finally needs
Interim end-blocking wall (2) in range of structures to be cut, the insertion docking of realization body structure.Interim end-blocking wall pass through wall apical cap beam and
Middle part concrete breast beam and support with foundation pit enclosure structure formed common by Force system.
Foundation ditch Guan Liang and ground floor concrete support (3) are located at foundation pit enclosure structure top, foundation pit enclosure structure (1) on the bank
Reinforcing bar anchors in Guan Liang, foundation pit enclosure structure top is connected as an entirety, and is collectively forming foundation ditch with foundation pit enclosure structure
Support system.
In foundation ditch, second layer concrete support and waist rail (4) are located in foundation ditch on the bank, and pit earthwork is excavated to second layer waist
Liang Chu, construction second layer waist rail and support.In foundation pit enclosure structure, embedded bar or later stage bar planting (8) anchor into concrete breast beam
Interior, pour as an entirety with concrete after support and the colligation simultaneously of waist rail reinforcing bar simultaneously.
In the middle part of cantilever foundation pit enclosure, reinforced concrete waist rail (5) is located at outside foundation ditch, and same absolute altitude, base with waist rail in foundation ditch
In pit enclosure structure, embedded bar or later stage bar planting (9) anchor in concrete breast beam, after support and the colligation simultaneously of waist rail reinforcing bar
Pour as an entirety with concrete simultaneously.
In the middle part of three-dimensional armored concrete diagonal brace (6) and armored concrete diagonal brace (7) one end and cantilever foundation pit enclosure, reinforcing bar mixes
Solidifying soil waist rail connects, and one end is connected with foundation ditch Guan Liang under bank, and connected mode is Bar Anchorage.
Under bank, foundation ditch Guan Liang and ground floor concrete support (8) are located at foundation pit enclosure structure top, foundation pit enclosure structure (1)
Reinforcing bar anchors in Guan Liang, foundation pit enclosure structure top is connected as an entirety, and is collectively forming foundation ditch with foundation pit enclosure structure
Support system.
The beneficial effects of the utility model are：By assuring that " X " type of end-blocking wall both sides place discrepancy in elevation 10.5m stands temporarily
Hand over ring road foundation ditch synchronous construction safety support system it is achieved that immersed tube tunnel " X " type interchange ramp foundation ditch synchronous construction it is ensured that
Safety Construction of Deep Foundation Pit, accelerates integral construction progress, has saved construction cost, and being similar to operating mode foundation pit construction for the later stage provides
Reference frame.
Brief description
Fig. 1 is support system described in the utility model " X " type interchange ramp foundation ditch plane graph；
Fig. 2 is the A-A profile in Fig. 1；
In figure：1 foundation pit enclosure structure, 2 interim end-blocking walls, 3 foundation ditch Guan Liang and ground floor concrete supports, 4 on the bank on the bank
Reinforced concrete waist rail, 6 three-dimensional armored concrete in the middle part of second layer concrete support and waist rail, 5 cantilever foundation pit enclosures in foundation ditch
In foundation ditch Guan Liang and ground floor concrete support, 9 building enclosures under diagonal brace, 7 armored concrete diagonal braces, 8 banks embedded bar or after
Phase bar planting.
Specific embodiment
Support system described in the utility model includes：Foundation pit enclosure structure, temporarily end-blocking wall, on the bank foundation ditch Guan Liang and first
Layer concrete supports, on the bank reinforced concrete waist rail in the middle part of second layer concrete support and waist rail, cantilever foundation pit enclosure in foundation ditch,
Pre- in foundation ditch Guan Liang and ground floor concrete support, building enclosure under three-dimensional armored concrete diagonal brace, armored concrete diagonal brace, bank
Bury reinforcing bar or later stage bar planting.
Foundation pit enclosure structure (1) is located at the both sides of structure built by opencut method, as a part for the support system of open-cut foundation ditch construction.
Interim end-blocking wall (2) is located in structure built by opencut method, and a foundation ditch is divided into two or more open-cut foundation ditch, finally needs
Interim end-blocking wall (2) in range of structures to be cut, the insertion docking of realization body structure.Interim end-blocking wall pass through wall apical cap beam and
Middle part concrete breast beam and support with foundation pit enclosure structure formed common by Force system.
Foundation ditch Guan Liang and ground floor concrete support (3) are located at foundation pit enclosure structure top, foundation pit enclosure structure (1) on the bank
Reinforcing bar anchors in Guan Liang, foundation pit enclosure structure top is connected as an entirety, and is collectively forming foundation ditch with foundation pit enclosure structure
Support system.
In foundation ditch, second layer concrete support and waist rail (4) are located in foundation ditch on the bank, and pit earthwork is excavated to second layer waist
Liang Chu, construction second layer waist rail and support.In foundation pit enclosure structure, embedded bar or later stage bar planting (8) anchor into concrete breast beam
Interior, pour as an entirety with concrete after support and the colligation simultaneously of waist rail reinforcing bar simultaneously.
In the middle part of cantilever foundation pit enclosure, reinforced concrete waist rail (5) is located at outside foundation ditch, and same absolute altitude, base with waist rail in foundation ditch
In pit enclosure structure, embedded bar or later stage bar planting (9) anchor in concrete breast beam, after support and the colligation simultaneously of waist rail reinforcing bar
Pour as an entirety with concrete simultaneously.
In the middle part of three-dimensional armored concrete diagonal brace (6) and armored concrete diagonal brace (7) one end and cantilever foundation pit enclosure, reinforcing bar mixes
Solidifying soil waist rail connects, and one end is connected with foundation ditch Guan Liang under bank, and connected mode is Bar Anchorage.
Under bank, foundation ditch Guan Liang and ground floor concrete support (8) are located at foundation pit enclosure structure top, foundation pit enclosure structure (1)
Reinforcing bar anchors in Guan Liang, foundation pit enclosure structure top is connected as an entirety, and is collectively forming foundation ditch with foundation pit enclosure structure
Support system.
Claims (1)
1. one kind guarantee " X " type bias interchange ramp security of foundation ditch construction support system it is characterised in that:Described support system
Including：The second layer in foundation pit enclosure structure, temporarily end-blocking wall, on the bank foundation ditch Guan Liang and ground floor concrete support, on the bank foundation ditch
Reinforced concrete waist rail, three-dimensional armored concrete diagonal brace, armored concrete in the middle part of concrete support and waist rail, cantilever foundation pit enclosure
Embedded bar or later stage bar planting in foundation ditch Guan Liang and ground floor concrete support, building enclosure under diagonal brace, bank；
Foundation pit enclosure structure (1) is located at the both sides of structure built by opencut method, as a part for the support system of open-cut foundation ditch construction；
Interim end-blocking wall (2) is located in structure built by opencut method, and a foundation ditch is divided into two or more open-cut foundation ditch, finally needs to dig
Except end-blocking wall (2) interim in range of structures, the insertion docking of realization body structure；Interim end-blocking wall passes through wall apical cap beam and middle part
Concrete breast beam and support with foundation pit enclosure structure formed common by Force system；
Foundation ditch Guan Liang and ground floor concrete support (3) are located at foundation pit enclosure structure top, foundation pit enclosure structure (1) reinforcing bar on the bank
Anchor in Guan Liang, foundation pit enclosure structure top is connected as an entirety, and be collectively forming propping up of foundation ditch with foundation pit enclosure structure
Protecting system；
In foundation ditch, second layer concrete support and waist rail (4) are located in foundation ditch on the bank, and pit earthwork is excavated at second layer waist rail,
Construction second layer waist rail and support；In foundation pit enclosure structure, embedded bar or later stage bar planting (8) anchor in concrete breast beam,
Pour as an entirety with concrete after support and the colligation simultaneously of waist rail reinforcing bar simultaneously；
In the middle part of cantilever foundation pit enclosure, reinforced concrete waist rail (5) is located at outside foundation ditch, and the same absolute altitude with waist rail in foundation ditch, and foundation ditch encloses
In protection structure, embedded bar or later stage bar planting (9) anchor in concrete breast beam, after support and the colligation simultaneously of waist rail reinforcing bar and mixed
Solidifying soil pours as an entirety simultaneously；
Armored concrete in the middle part of three-dimensional armored concrete diagonal brace (6) and armored concrete diagonal brace (7) one end and cantilever foundation pit enclosure
Waist rail connects, and one end is connected with foundation ditch Guan Liang under bank, and connected mode is Bar Anchorage；
Under bank, foundation ditch Guan Liang and ground floor concrete support (8) are located at foundation pit enclosure structure top, foundation pit enclosure structure (1) reinforcing bar
Anchor in Guan Liang, foundation pit enclosure structure top is connected as an entirety, and be collectively forming propping up of foundation ditch with foundation pit enclosure structure
Protecting system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652679.7U CN205954637U (en) | 2016-06-28 | 2016-06-28 | Ensure safe braced system of " X " type bias voltage grade separation ring road foundation ditch construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652679.7U CN205954637U (en) | 2016-06-28 | 2016-06-28 | Ensure safe braced system of " X " type bias voltage grade separation ring road foundation ditch construction |
Publications (1)
| Publication Number | Publication Date |
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| CN205954637U true CN205954637U (en) | 2017-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620652679.7U Withdrawn - After Issue CN205954637U (en) | 2016-06-28 | 2016-06-28 | Ensure safe braced system of " X " type bias voltage grade separation ring road foundation ditch construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926638A (en) * | 2016-06-28 | 2016-09-07 | 中铁隧道集团二处有限公司 | Supporting system for ensuring construction safety of foundation pits of X-shaped eccentric loaded interchange ramp |
-
2016
- 2016-06-28 CN CN201620652679.7U patent/CN205954637U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926638A (en) * | 2016-06-28 | 2016-09-07 | 中铁隧道集团二处有限公司 | Supporting system for ensuring construction safety of foundation pits of X-shaped eccentric loaded interchange ramp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170215 Effective date of abandoning: 20170929 |
|
| AV01 | Patent right actively abandoned |