CN109137981A - The interim underpinning structure of underground engineering permanent structure column and construction method - Google Patents
The interim underpinning structure of underground engineering permanent structure column and construction method Download PDFInfo
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- CN109137981A CN109137981A CN201811179897.3A CN201811179897A CN109137981A CN 109137981 A CN109137981 A CN 109137981A CN 201811179897 A CN201811179897 A CN 201811179897A CN 109137981 A CN109137981 A CN 109137981A
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- column
- girder
- middle plate
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- top plate
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- 238000009424 underpinning Methods 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Foundations (AREA)
Abstract
The invention discloses a kind of interim underpinning structures of underground engineering permanent structure column, are related to a kind of interim underpinning structure of structural column, it includes top plate beam, middle plate-girder and the floor beams positioned at below ground；Top plate beam, middle plate-girder are connected with floor beams by pilaster；There is the second structural column of upper layer first structure column and upper layer between top plate beam and middle plate-girder, also underpins diagonal brace between top plate beam and middle plate-girder；Two underpin diagonal brace relative to upper layer first structure column symmetry；There is lower layer's first structure column between middle plate-girder and floor beams, lower layer's first structure column is located at upper layer the second structural column lower part；There are also the structural column that need to be underpined between middle plate-girder and floor beams, the structural column that need to be underpined is located at upper layer first structure column lower part；Uplift pile under column is provided with below floor beams.The present invention has easy to operate, easy to implement, feature that cost is relatively low, smaller to external action.The invention also discloses a kind of construction methods of interim underpinning structure of underground engineering permanent structure column.
Description
Technical field
The present invention relates to a kind of interim underpinning structures of structural column, more specifically say it is a kind of underground engineering permanent structure column
Interim underpinning structure.The invention also discloses the construction methods of this interim underpinning structure of underground engineering permanent structure column.
Background technique
When subway engineering is constructed, for some reason, cause permanent structure column that cannot locally perform immediately, but in order to guarantee
Superstructure function need to take measures temporarily to be underpined, this, which underpins measure, should guarantee to underpin the space needs at position, again
Guarantee to be needed by exchange pillar superstructure stress.Such as due to the place of ground (shield-tunneling construction without receive or originate condition) or
Duration reason etc., shield machine need AT STATION in translation or u-turn, two layers of station underground shield well position first across with second across
Between structural column need to can be performed after the completion of shield translating or u-turn, to guarantee shield translating space.But it is crucial to guarantee
Earthing etc. still needs to backfill by the former duration on duration, superstructure and top plate, this results in the structure main beam stress span of the part
Expansion is twice, and top plate beam and floor beams are difficult to meet force request.Usual way increases beam section and arrangement of reinforcement to improve the beam
Bearing capacity, but some earthing are deeper, and stringer stress is larger, or is limited by building storey height, and beam section height is limited, thus often
Rule measure cannot be met the requirements, to have to abandon shield to turn around or translate, be constructed using other methods, to spend more
Expense and time.
Therefore, study a kind of interim underpinning structure of underground engineering permanent structure column and construction method become one it is urgent and
Important work.
Summary of the invention
The first object of the present invention is and to provide a kind of underground engineering forever to overcome the shortcoming of above-mentioned background technology
The interim underpinning structure of long structural column.
The second object of the present invention is to provide the construction party of the above-mentioned this interim underpinning structure of underground engineering permanent structure column
Method.
In order to realize above-mentioned first purpose, the interim underpinning structure of underground engineering permanent structure column, it is characterised in that: including position
In top plate beam below ground, the middle plate-girder below top plate beam and the floor beams below middle plate-girder；The top plate beam,
Middle plate-girder is connected with the left side of floor beams by pilaster；There are upper layer first structure column and upper layer between the top plate beam and middle plate-girder
Second structural column, upper layer first structure column are located on the left of the second structural column of upper layer；There are also hold in the palm between the top plate beam and middle plate-girder
Change diagonal brace；Diagonal brace is underpined described in two relative to upper layer first structure column symmetry；
There is lower layer's first structure column between the middle plate-girder and floor beams, lower layer's first structure column is located at upper layer second
Structural column lower part；There are also the structural column that need to be underpined between the middle plate-girder and floor beams, the structural column that need to be underpined is located at upper layer
One structural column lower part；
Uplift pile under column is provided with below the floor beams.
In the above-mentioned technical solutions, have between the pilaster and middle plate-girder, between lower layer's first structure column and middle plate-girder
Bracket；Two brackets are relative to the structure column symmetry that need to be underpined.
In the above-mentioned technical solutions, under the upper layer first structure column, the structural column and column that need to underpin uplift pile axle center
On same axial line.
In the above-mentioned technical solutions, the top plate beam includes top beam and top plate, and middle plate-girder includes central sill and middle plate, floor beams
Including bottom beam and bottom plate；The diagonal brace that underpins is between top plate and middle plate；Uplift pile is set to below bottom beam under the column.
In order to realize above-mentioned second purpose, the technical solution of the present invention is as follows: underground engineering permanent structure column temporarily underpins knot
The construction method of structure, includes the following steps,
Step 1: uplift pile under construction column；
Step 2: pouring floor beams, pilaster, lower layer's first structure column, bracket, middle plate-girder, upper layer first structure column, upper layer
Second structural column and top plate beam, the reserved structural column that need to be underpined pour condition；
Step 3: pouring and underpin support；
Step 4: when structure reaches design strength, backfill top plate beam earthing；
Step 5: after shield translating or shield turn around, pouring the structural column that need to be underpined；
Step 6: when the structural column underpined reaches design strength, dismounting underpins support.
Compared with prior art, beneficial effects of the present invention are as follows:
1) it is indeterminable forever using increase beam section and arrangement of reinforcement can effectively to solve tradition in the way of underpining by the present invention
The problem of long column cannot temporarily perform.
2) present invention has easy to operate, easy to implement, feature that cost is relatively low, smaller to external action.
3) present invention changes force modes, needs the power undertaken to be undertaken with other components on original column, effectively solves former
Carry out conventional method not and can solve stress problem.
Detailed description of the invention
Fig. 1 is structure vertical section schematic diagram of the invention.
Fig. 2 is structure schematic cross section of the invention.
In figure, 1- top plate beam, 1a- top beam, 1b- top plate, plate-girder in 2-, 2a- central sill, plate in 2b-, 3- floor beams, the bottom 3a-
Beam, 3b- bottom plate, 4- pilaster, the upper layer 5a1- first structure column, the second structural column of the upper layer 5a2-, 5b1- lower layer first structure column, 6-
Underpin support, the structural column that 7- need to be underpined, uplift pile under 8- column, 9- bracket.
Specific implementation
The performance that the invention will now be described in detail with reference to the accompanying drawings, but they and do not constitute a limitation of the invention, only
It is for example.Advantages of the present invention is set to will become clearer and be readily appreciated that by explanation simultaneously.
Refering to known to attached drawing: the interim underpinning structure of underground engineering permanent structure column, it is characterised in that: including being located at ground 10
The top plate beam 1 of lower section, the floor beams 3 positioned at the middle plate-girder 2 of 1 lower section of top plate beam and positioned at middle 2 lower section of plate-girder；The top plate beam 1,
The left side of middle plate-girder 2 and floor beams 3 is connected by pilaster 4；There is upper layer first structure column between the top plate beam 1 and middle plate-girder 2
5a1 and upper layer the second structural column 5a2, upper layer first structure column 5a1 are located on the left of the second structural column 5a2 of upper layer；The top plate beam 1
Diagonal brace 6 is also underpined between middle plate-girder 2；It is symmetrical relative to upper layer first structure column 5a1 that diagonal brace 6 is underpined described in two；
There are lower layer first structure column 5b1, lower layer's first structure column 5b1 to be located between the middle plate-girder 2 and floor beams 3
The upper layer lower part the second structural column 5a2；There are also the structural column 7 that need to be underpined between the middle plate-girder 2 and floor beams 3, the knot that need to be underpined
Structure column 7 is located at the upper layer lower part first structure column 5a1；
Uplift pile 8 under column are provided with below the floor beams 3；The floor beams 3 below bottom beam 3a by being arranged one
Or under more columns uplift pile 8 to solve the problems, such as 3 stress of floor beams；When original design in station just has uplift pile 8 under column, column can adjust
Lower 8 position of uplift pile is to be used.The axle power N for the structural column 7 that need to be underpined is calculated first with original structure model (not underpining),
Using load equivalence principle, after the structural column 7 that need to be underpined revocation, the uplift pile 8 in the case where 7 side of structural column that need to be underpined increases column,
Then the withdrawal resistance F=N of uplift pile 8 under column goes out 8 size of uplift pile under column according to soil properties inverse.
There is bracket 9 between the pilaster 4 and middle plate-girder 3, between lower layer first structure column 5b1 and middle plate-girder 3；Two institutes
It is symmetrical relative to the structural column 7 that need to be underpined to state bracket 9.
The axle center of uplift pile 8 is in same axle center under the upper layer first structure column 5a1, the structural column 7 and column that need to be underpined
On line.
The top plate beam 1 includes top beam 1a and top plate 1b, and middle plate-girder 2 includes central sill 2a and middle plate 2b, and floor beams 3 include bottom
Beam 3a and bottom plate 3b；The diagonal brace 6 that underpins is between top plate 1b and middle plate 2b；Uplift pile 8 is set under bottom beam 3a under the column
Side.Increase between the top plate 1b and middle plate 2b and underpin diagonal brace 6, the stress system of top plate beam 1 and middle plate-girder 2 will can be turned
Truss stress system is turned to, solves the problems, such as the stress of top plate beam 1 and middle plate-girder 2；It is obtained by the calculating of the software modelings such as PKPM, SAP
Take the size for underpining diagonal brace 6.
The construction method of the interim underpinning structure of underground engineering permanent structure column, it is characterised in that: include the following steps,
Step 1: uplift pile 8 under construction column；
Step 2: pouring floor beams 3, pilaster 4, lower layer first structure column 5b1, bracket 9, middle plate-girder 2, upper layer first structure
Column 5a1, upper layer the second structural column 5a2 and top plate beam 1, the reserved structural column 7 that need to be underpined pour condition；
Step 3: pouring and underpin support 6；
Step 4: when structure reaches design strength, backfill 1 earthing of top plate beam；
Step 5: after shield translating or shield turn around, pouring the structural column 7 that need to be underpined；
Step 6: when the structural column 7 underpined reaches design strength, dismounting underpins support 6.
In actual use, the present invention below floor beams 3 by being arranged uplift pile 8 under at least one construction column, to solve
The stress problem of floor beams 3 can adjust the position of uplift pile 8 under column when original design in station just has uplift pile 8 under column to be subject to
It utilizes.
It should be noted that according to the needs of engineering construction in upper layer first structure column 5a1, upper layer the second structural column 5a2
It there may also be upper layer third structural column 5a3, the 4th upper layer structural column 5a4 ... N structural column 5aN of upper layer；Lower layer's first structure column
Need there may also be lower layer the second structural column 5b2, lower layer third structural column 5b3 ... lower layer N knot according to engineering construction in 5b1
Structure column 5bN.
Other unspecified parts belong to the prior art.
Claims (5)
1. the interim underpinning structure of underground engineering permanent structure column, it is characterised in that: including being located at the top plate beam below ground (10)
(1), the floor beams (3) for being located at the middle plate-girder (2) below top plate beam (1) and being located at below middle plate-girder (2)；The top plate beam (1),
The left side of middle plate-girder (2) and floor beams (3) is connected by pilaster (4)；There is upper layer between the top plate beam (1) and middle plate-girder (2)
First structure column (5a1) and the second structural column of upper layer (5a2), upper layer first structure column (5a1) are located at the second structural column of upper layer
On the left of (5a2)；Diagonal brace (6) are also underpined between the top plate beam (1) and middle plate-girder (2)；It is opposite that diagonal brace (6) is underpined described in two
It is symmetrical in upper layer first structure column (5a1)；
There are lower layer's first structure column (5b1), lower layer's first structure column (5b1) between the middle plate-girder (2) and floor beams (3)
Positioned at the lower part upper layer the second structural column (5a2)；There are also the structural columns that need to be underpined between the middle plate-girder (2) and floor beams (3)
(7), the structural column (7) that need to be underpined is located at the lower part upper layer first structure column (5a1)；
Uplift pile under column (8) are provided with below the floor beams (3).
2. the interim underpinning structure of underground engineering permanent structure column according to claim 1, it is characterised in that: the pilaster
(4) there are bracket (9) between middle plate-girder (3), between lower layer's first structure column (5b1) and middle plate-girder (3)；Two brackets
(9) symmetrical relative to the structural column (7) that need to be underpined.
3. the interim underpinning structure of underground engineering permanent structure column according to claim 1 or 2, it is characterised in that: on described
The axle center of uplift pile (8) is on same axial line under layer first structure column (5a1), the structural column (7) and column that need to be underpined.
4. the interim underpinning structure of underground engineering permanent structure column according to claim 3, it is characterised in that: the top plate beam
It (1) include top beam (1a) and top plate (1b), middle plate-girder (2) includes central sill (2a) and middle plate (2b), and floor beams (3) include bottom beam
(3a) and bottom plate (3b)；The diagonal brace (6) that underpins is between top plate (1b) and middle plate (2b)；Uplift pile (8) is arranged under the column
Below bottom beam (3a).
5. the construction method of the interim underpinning structure of underground engineering permanent structure column, it is characterised in that: include the following steps,
Step 1: uplift pile (8) under construction column；
Step 2: pouring floor beams (3), pilaster (4), lower layer's first structure column (5b1), bracket (9), middle plate-girder (2), upper layer
One structural column (5a1), the second structural column of upper layer (5a2) and top plate beam (1), the reserved structural column (7) that need to be underpined pour condition；
Step 3: pouring and underpin support (6)；
Step 4: when structure reaches design strength, backfill top plate beam (1) earthing；
Step 5: after shield translating or shield turn around, pouring the structural column (7) that need to be underpined；
Step 6: when the structural column (7) underpined reaches design strength, dismounting underpins support (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811179897.3A CN109137981B (en) | 2018-10-10 | 2018-10-10 | Temporary underpinning structure of underground engineering permanent structural column and construction method |
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| CN201811179897.3A CN109137981B (en) | 2018-10-10 | 2018-10-10 | Temporary underpinning structure of underground engineering permanent structural column and construction method |
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| CN109137981A true CN109137981A (en) | 2019-01-04 |
| CN109137981B CN109137981B (en) | 2023-12-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899087A (en) * | 2019-01-21 | 2019-06-18 | 成都市建筑设计研究院 | A kind of hole column tunneling is inverse to build underground structure and construction method |
| CN114704309A (en) * | 2022-03-07 | 2022-07-05 | 中铁第一勘察设计院集团有限公司 | Temporary supporting structure for solving conflict between medium plate shield hole boundary beam and shield in subway station |
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| CN106168053A (en) * | 2016-08-19 | 2016-11-30 | 中铁隧道勘测设计院有限公司 | Y shape pillar is used to be combined the structure at design large span deep buried metro station with uplift pile |
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| CN108468345A (en) * | 2018-04-08 | 2018-08-31 | 中铁第四勘察设计院集团有限公司 | It is a kind of to exempt to set the structure of floor beams and construction method for subway underground station end well |
| CN209468781U (en) * | 2018-10-10 | 2019-10-08 | 长江勘测规划设计研究有限责任公司 | The interim underpinning structure of underground engineering permanent structure column |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011127367A (en) * | 2009-12-18 | 2011-06-30 | Takenaka Komuten Co Ltd | Method for forming building |
| CN106168053A (en) * | 2016-08-19 | 2016-11-30 | 中铁隧道勘测设计院有限公司 | Y shape pillar is used to be combined the structure at design large span deep buried metro station with uplift pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899087A (en) * | 2019-01-21 | 2019-06-18 | 成都市建筑设计研究院 | A kind of hole column tunneling is inverse to build underground structure and construction method |
| CN114704309A (en) * | 2022-03-07 | 2022-07-05 | 中铁第一勘察设计院集团有限公司 | Temporary supporting structure for solving conflict between medium plate shield hole boundary beam and shield in subway station |
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| Publication number | Publication date |
|---|---|
| CN109137981B (en) | 2023-12-01 |
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