CN207092107U - A kind of anti-subsidence structure using diaphram wall - Google Patents
A kind of anti-subsidence structure using diaphram wall Download PDFInfo
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- CN207092107U CN207092107U CN201720813271.8U CN201720813271U CN207092107U CN 207092107 U CN207092107 U CN 207092107U CN 201720813271 U CN201720813271 U CN 201720813271U CN 207092107 U CN207092107 U CN 207092107U
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Abstract
A kind of anti-subsidence structure using diaphram wall, belong to hypogee structure, solve the problems, such as that the anti-depression processing of the foundation treatment modes such as existing slip casting is not thorough enough, processing is ageing poor.The utility model includes diaphram wall and underground agent structure, the diaphram wall rigidly fixes below foundation ditch bottom is connected with multiple bracket piers, each bracket pier rigidly fixes connection with orthogonal under concrete cushion on the inside of diaphram wall, bears underground main body dead load and load；The bracket pier is reinforced concrete structure.The utility model is simple in construction, easy for construction, cost is relatively low, diaphram wall can be made full use of to participate in vertical pressure-bearing stress, increase underground agent structure safety, suitable for using track traffic, civil buildings underground engineering anti-depression of the diaphragm wall as building enclosure.
Description
Technical field
The utility model belongs to hypogee structure, and in particular to a kind of anti-subsidence structure using diaphram wall, fits
For using track traffic, civil buildings underground engineering anti-depression of the diaphram wall as building enclosure.
Background technology
During underground engineering construction, because addressing needs, underground main body structure bit is usually inevitably positioned at soft
The easily depression location such as weak soil, karst, it is to carry out the basement process such as weak soil, karst to run into this stratum in general way, is reduced
The generation of depression may；When depression occurs, the Grouting Pipe reserved by underground main body structure base slab is carried out serviceability limit stage
Slip casting, reduce the influence of depression.Using the anti-depression of such a means, in advance because geology discloses not comprehensive, not thorough or cost
Restrict, it is not thorough enough to often lead to anti-depression processing；Depression occur post processing fall flat, and handle it is ageing compared with
Difference, it can all influence underground structure normal use.
In underground space development engineering, deep-foundation pit engineering generally use diaphram wall is as foundation ditch retaining structure, edge
Underground structure periphery is arranged, when having anti-floating to need, also participates in vertical anti-floating as permanent structure.
The content of the invention
The utility model provides a kind of anti-subsidence structure using diaphram wall, solves the basement process sides such as existing slip casting
The problem of anti-depression processing of formula is not enough thoroughly, processing is ageing poor.
A kind of anti-subsidence structure using diaphram wall provided by the utility model, including diaphram wall and underground
Agent structure, the underground main body structure bit is in the diaphram wall, and the bottom plate lower section of underground agent structure is from the bottom to top
Concrete cushion, waterproof layer and pea gravel concreten protective layer are laid successively, it is characterised in that：
Diaphram wall position below the absolute altitude of foundation ditch bottom, which rigidly fixes, is connected with multiple bracket piers, each bracket pier with
Deadweight and the lotus for rigidly fixing connection, bearing underground agent structure orthogonal under foundation ditch base concrete bed course on the inside of diaphram wall
Carry；The bracket pier is reinforced concrete structure, along underground agent structure girth arranged for interval.
Steel bar stress can include longitudinal tensile reinforcing bar and horizontal hoop, the longitudinal tensile reinforcing bar edge in the bracket pier
The horizontal parallel arrangement of diaphram wall breadth direction, the horizontal hoop is vertically arranged in parallel, to reduce bracket socle mistake
Early there is the possibility of diagonal crack, the bracket pier is not less than 400mm away from diaphram wall direction cantilever span L.
The longitudinal tensile reinforcing bar and horizontal hoop include section within the walls and the outer section of wall respectively, and section passes through pre-buried mode within the walls
It is placed in diaphram wall, and meets that anchoring requires, within the walls section end connection reinforcing bar connector and pre-buried in the lump, later stage colligation ox
During leg pier steel bar stress, protective layer is cut to correspondence position on the inside of diaphram wall, exposes outside reinforcing bar connector, the outer section of wall passes through
Reinforcing bar connector is connected with section within the walls, then casting concrete forms bracket pier.
The longitudinal tensile reinforcing bar and horizontal hoop can also use and excavate doing after diaphram wall correspondence position bar planting
Method is formed, to improve the accuracy of positioning.
Construction procedure of the present utility model is：
1st, construction diaphram wall, in every width diaphram wall width center position, correspondingly descends agent structure bottom
Tension reinforcement, horizontal hoop and the reinforcing bar connector of the pre-buried bracket pier of bracket altitude range below board concrete bed course (are such as adopted
With bar planting way, then tension reinforcement, horizontal hoop and reinforcing bar connector are not pre-buried)；
2nd, in diaphram wall excavation of foundation pit to foundation ditch bottom；
3rd, after being excavated to foundation ditch bottom, pressing close to diaphram wall region, continuing to excavate bracket pier depth downwards, cut underground
Correspondence position protective layer on the inside of diaphragm wall, exposes outside reinforcing bar connector, colligation bracket pier framework of steel reinforcement, by reinforcing bar connector with
Diaphram wall connection (as used bar planting way, then needs first bar planting assembling reinforcement skeleton again), pours bracket pier, bracket pier top
Face is concordant with foundation ditch bottom；
4th, concrete cushion, waterproof layer and pea gravel concreten protective layer, bracket pier are laid successively from bottom to top at foundation ditch bottom
It is embedded in below concrete cushion；
5th, underground agent structure is built back up；
The utility model presets bracket pier under the main body structure base slab of underground, when depression occurs for bottom plate bottom soft foundation
When, bearing ratio in piles and soils change, ground undertakes load combination ratio reduction, and bracket pier, which is acted on underground agent structure rest, to be strengthened,
Underground main body dead load and its load are passed into the holding force that diaphram wall bottom bearing capacity is higher and engineering characteristic is more stable
Layer, prevents that underground agent structure depression is excessive, ensures its normal use and structure safety.
The utility model structure is simple in construction, easy for construction, cost is relatively low, diaphram wall can be made full use of to participate in perpendicular
To pressure-bearing stress, increase underground agent structure safety, skirt piles quantity under the bottom plate of anti-depression is greatly reduced, prevents underground main body
Structure produces excessive deformation with the subsidence of foundations, while meets conventional waterproofing process, improves the feature and peace of underground agent structure
Whole step, there is easy construction, shorten the construction period, save construction costs, suitable for using open cut piling wall type fender body
It is the Main Underground Structural Engineering of construction, is led available for underground engineerings such as building engineering, railway traffic engineering, port and pier
Domain, underground main structure normal use and safety is effectively ensured.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model；
Fig. 2 is the section arrangement of reinforcement schematic diagram of the utility model bracket pier；
Fig. 3 is the plane arrangement of reinforcement schematic diagram of the utility model bracket pier；
Fig. 4 is floor map of the present utility model.
Embodiment
Below in conjunction with drawings and examples, the present invention is further described.
As shown in Figure 1 to 4, the present embodiment includes diaphram wall 1 and underground agent structure, the underground agent structure
In foundation ditch of the diaphram wall 1 as soil-baffling structure, underground agent structure includes being close to the side wall of diaphram wall 1
10, side wall bottom is connected with bottom plate 9, and concrete cushion 6, waterproof layer 7 and microlith coagulation are laid in the lower section of bottom plate 9 successively from the bottom to top
Protective soil layer 8；
Diaphram wall position below the absolute altitude of foundation ditch bottom, which rigidly fixes, is connected with multiple bracket piers 2, each bracket pier 2
With the inner side orthogonal deadweight for rigidly fixing connection, bearing underground agent structure under foundation ditch base concrete bed course of diaphram wall 1
And load；The bracket pier is reinforced concrete structure, along underground agent structure girth arranged for interval.
In the present embodiment, steel bar stress includes longitudinal tensile reinforcing bar 4 and horizontal hoop 5, the longitudinal direction in the bracket pier 2
Tension reinforcement 4 arranges along diaphram wall breadth direction horizontal parallel, and the horizontal hoop 5 is vertically arranged in parallel, to reduce
There is the possibility of diagonal crack too early in bracket socle, and the bracket pier 2 is not less than away from diaphram wall direction cantilever span L
400mm。
The longitudinal tensile reinforcing bar 4 and horizontal hoop 5 include section within the walls and the outer section of wall respectively, and section passes through pre-buried side within the walls
Formula is placed in diaphram wall, and meets that anchoring requires, within the walls section end connection reinforcing bar connector 3 and pre-buried in the lump, and the later stage ties up
When pricking bracket pier steel bar stress, protective layer is cut to the inner side correspondence position of diaphram wall 1, exposes outside reinforcing bar connector, outside wall
Section is connected by reinforcing bar connector 3 with section within the walls, then casting concrete forms bracket pier.
Claims (2)
1. a kind of anti-subsidence structure using diaphram wall, including diaphram wall（1）With underground agent structure, the underground
Agent structure is located at the diaphram wall（1）It is interior, lay concrete successively from the bottom to top below the bottom plate of underground agent structure
Bed course（6）, waterproof layer（7）With pea gravel concreten protective layer（8）, it is characterised in that：
Diaphram wall position below the absolute altitude of foundation ditch bottom, which rigidly fixes, is connected with multiple bracket piers（2）, each bracket pier（2）
With diaphram wall（1）Inner side is orthogonal under foundation ditch base concrete bed course to rigidly fix connection, bears underground agent structure oneself
Weight and load；The bracket pier is reinforced concrete structure, along underground agent structure girth arranged for interval.
2. the anti-subsidence structure of diaphram wall is utilized as claimed in claim 1, it is characterised in that：
The bracket pier（2）Interior steel bar stress includes longitudinal tensile reinforcing bar（4）And horizontal hoop（5）, the longitudinal tensile reinforcing bar
（4）Arranged along diaphram wall breadth direction horizontal parallel, the horizontal hoop（5）It is vertically arranged in parallel, to reduce bracket
There is the possibility of diagonal crack, the bracket pier too early in socle（2）It is not less than away from diaphram wall direction cantilever span L
400mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720813271.8U CN207092107U (en) | 2017-07-06 | 2017-07-06 | A kind of anti-subsidence structure using diaphram wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720813271.8U CN207092107U (en) | 2017-07-06 | 2017-07-06 | A kind of anti-subsidence structure using diaphram wall |
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| CN207092107U true CN207092107U (en) | 2018-03-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343451A (en) * | 2018-04-12 | 2018-07-31 | 北京市热力工程设计有限责任公司 | A kind of connection structure and method of duct pieces of shield tunnel and bracket |
| CN109577514A (en) * | 2019-01-16 | 2019-04-05 | 上海中森建筑与工程设计顾问有限公司 | Prefabricated sandwich heat preservation exterior wall with dried hanging hang structure |
| CN109989431A (en) * | 2019-04-22 | 2019-07-09 | 郑州市市政工程总公司 | The underground structure and its construction method of buoyancy force of underground water are resisted using campshed |
| CN111021364A (en) * | 2019-12-09 | 2020-04-17 | 广东省冶金建筑设计研究院有限公司 | Foundation pit supporting device |
| CN112095377A (en) * | 2020-08-28 | 2020-12-18 | 中国建筑第八工程局有限公司 | Off-pit construction road structure next to subway deep foundation pit and construction method thereof |
-
2017
- 2017-07-06 CN CN201720813271.8U patent/CN207092107U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343451A (en) * | 2018-04-12 | 2018-07-31 | 北京市热力工程设计有限责任公司 | A kind of connection structure and method of duct pieces of shield tunnel and bracket |
| CN108343451B (en) * | 2018-04-12 | 2024-04-26 | 北京市热力工程设计有限责任公司 | Connection structure and method for shield tunnel segment and bracket |
| CN109577514A (en) * | 2019-01-16 | 2019-04-05 | 上海中森建筑与工程设计顾问有限公司 | Prefabricated sandwich heat preservation exterior wall with dried hanging hang structure |
| CN109989431A (en) * | 2019-04-22 | 2019-07-09 | 郑州市市政工程总公司 | The underground structure and its construction method of buoyancy force of underground water are resisted using campshed |
| CN111021364A (en) * | 2019-12-09 | 2020-04-17 | 广东省冶金建筑设计研究院有限公司 | Foundation pit supporting device |
| CN112095377A (en) * | 2020-08-28 | 2020-12-18 | 中国建筑第八工程局有限公司 | Off-pit construction road structure next to subway deep foundation pit and construction method thereof |
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