CN205475249U - Landing stage structure that fetches earth under deep basal pit annular supports - Google Patents
Landing stage structure that fetches earth under deep basal pit annular supports Download PDFInfo
- Publication number
- CN205475249U CN205475249U CN201620027433.0U CN201620027433U CN205475249U CN 205475249 U CN205475249 U CN 205475249U CN 201620027433 U CN201620027433 U CN 201620027433U CN 205475249 U CN205475249 U CN 205475249U
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- Prior art keywords
- ramp
- deep basal
- basal pit
- fetches earth
- earth under
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- 238000010276 construction Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 239000004567 concrete Substances 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000010485 coping Effects 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Abstract
The utility model discloses a landing stage structure that fetches earth under deep basal pit annular supports, it includes: slope way, its top are connected in the edge of foundation ditch, the below that said on the slope is provided with bearing structure, bearing structure includes the shaped steel lattice column, the top of shaped steel lattice column connect in the lower surface that said on the slope, its bottom mounting in the bottom of foundation ditch, horizontal platform, horizontal platform connect in the bottom that said on the slope, horizontal platform's bottom surface is provided with many spinal branchs dagger. The problem that the setting up of landing stage can avoid using among the prior art slight slope to bring as the driving passageway. The bottom that said on the slope sets up in the central zone of pit bottom, and the construction machinery of the inside different zone of foundation ditch is comparatively even to the distance of landing stage bottom like this, has improved the efficiency that the earthwork was transported.
Description
Technical field
This utility model relates to building engineering field, the trestle knot that fetches earth under a kind of deep basal pit annular brace
Structure.
Background technology
In China's city land plan, the plot of approximating square is in the great majority, and in current east China
In the project under construction of city, soft clay area, the supported design of going along with sb. to guard him of deep basal pit starts progressively to use the foundation ditch of annular brace
Inner support system, because annulus has preferable stress, compares traditional symmetric support, props up same
Under support effect, annular brace cost is lower, and therefore this kind of supporting form will certainly be more universal in downtown area.
Under annular brace system, pit earthwork must be advanced by tau-effect principle stage excavation, first support and dig afterwards
Row arch brace earth excavation, excavates the earthwork in annulus after forming arch brace.
The earth excavation form taked in the deep basal pit of central shoring system at present mainly has following several: a kind of
Forming annular channels for arranging trestle plate in foundation ditch first annular brace, digging machine excavates in foundation ditch
Native with falling, and be unearthed by the platform entrucking of fetching earth stretched in trestle plate.This kind of mode is similar to support angle is supportted shape
The excavation method of general Deep Foundation Pit Excavation under formula, but can not solve foundation ditch center earthwork distance unearthed point remote,
The problem reducing the digging machine number of turnover, meanwhile, the method must use long-armed when carrying out dell earth excavation
Digging machine or grab bucket carry out dress soil, and cost is high but effect is slow, it addition, prop up for being primarily subjected to the annular of horizontal force
Additional vertical load in support, then the comprehensive function lower stress state gesture in both direction power of arch brace
Must change.Another kind is when annular brace earth excavation, stays and set slight slope to outside foundation ditch bottom foundation ditch,
Earthwork car can be native by the slight slope internal dress of entrance foundation ditch, reduces digging machine soil number of times.But this kind of method is because expiring
Foot arch brace is integrally formed the condition that rear is force-applied, it is necessary to covered by slight slope before per pass Construction of Supporting
After support zone excavates in advance and constructs, again backfilling this part soil body, just this slight slope available carries out this layer
The excavation operation of the earthwork.Therefore this construction method is only applicable to the annular brace engineering that foundation depth is shallower,
In the case of foundation depth increases, Site soil is poor, engineering time of the method will increase and can produce
Extra slight slope reinforces expense, can not solve in follow-up basement structure construction and supporting removal operation simultaneously
Material turnover and transportation problem.
Summary of the invention
In order to solve above-mentioned technical problem, this utility model provides the stack that fetches earth under a kind of deep basal pit annular brace
Bridge construction, the trestle work structure that fetches earth under deep basal pit annular brace of the present utility model can solve in prior art
The problem existed.
The technical solution of the utility model provides the trestle work structure that fetches earth under a kind of deep basal pit annular brace, its bag
Include:
Ramp, its top is connected to the edge of foundation ditch, and the lower section of described ramp is provided with supporting construction,
Described supporting construction includes that shaped steel lattice column, the top of described shaped steel lattice column are connected under described ramp
Surface, the bottom of foundation ditch is fixed in its bottom；
Levelling bench, described levelling bench is connected to the bottom of described ramp, the bottom surface of described levelling bench
It is provided with many support columns.
Further improvement is that of the trestle work structure that fetches earth under deep basal pit annular brace of the present utility model: described
The described supporting construction of the lower section of ramp also includes bridging and linking beam；Adjacent described steel lattice column
Between connected by bridging and linking beam；Described bridging and linking beam are made up of armored concrete.
Further improvement is that of the trestle work structure that fetches earth under deep basal pit annular brace of the present utility model: described
Ramp is made up of armored concrete, and the upper surface of described ramp is provided with tread plate.
Further improvement is that of the trestle work structure that fetches earth under deep basal pit annular brace of the present utility model: described
The both sides of ramp are provided with anti-collision wall, and described crashproof coping is provided with protective fence.
Further improvement is that of the trestle work structure that fetches earth under deep basal pit annular brace of the present utility model: described
The gradient of ramp is 1:8.
Further improvement is that of the trestle work structure that fetches earth under deep basal pit annular brace of the present utility model: described
Levelling bench is arranged at the central area bottom foundation ditch.
The trestle work structure that fetches earth under deep basal pit annular brace of the present utility model have the beneficial effect that setting of trestle
Put the problem that can avoid using slight slope to bring in prior art as driving passage.The bottom of ramp is arranged
Central area bottom melt pit, the distance of the construction machinery of the internal zones of different of such foundation ditch to trestle bottom
More uniform, improve the efficiency of earthwork transportation.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the trestle work structure that fetches earth under deep basal pit annular brace of the present utility model；And
Fig. 2 is the side view of the trestle work structure that fetches earth under deep basal pit annular brace of the present utility model.
Detailed description of the invention
Below by way of specific instantiation, embodiment of the present utility model being described, those skilled in the art can
Other advantages of the present utility model and effect are understood easily by the content disclosed by this specification.This practicality is new
Type can also be carried out by the most different detailed description of the invention or apply, in this specification every carefully
Joint can also carry out various modification based on different viewpoints and application under without departing from spirit of the present utility model
Or change.
It should be noted that structure depicted in this specification institute accompanying drawings, ratio, size etc., the most only use
To coordinate the content disclosed in description, understand for those skilled in the art and read, and being not used to limit
Determine the enforceable qualifications of this utility model, therefore do not have technical essential meaning, the modification of any structure,
The change of proportionate relationship or the adjustment of size, do not affecting effect that this utility model can be generated by and can reach
Under the purpose become, all should still fall in the range of the technology contents disclosed in this utility model obtains and can contain.With
Time, in this specification cited as " on ", D score, "left", "right", the term of " middle " and " " etc.,
It is merely convenient to understanding of narration, and is not used to limit the enforceable scope of this utility model, its relativeness
Be altered or modified, without essence change technology contents under, when being also considered as the enforceable category of this utility model.
Introduce the trestle work structure that fetches earth under deep basal pit annular brace of the present utility model below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, the trestle work structure that fetches earth under deep basal pit annular brace of the present utility model is concrete
Including ramp 10 and levelling bench 20.The top of ramp 10 is connected to the first at the edge of foundation ditch
, between top and the circular inner support 30 of ramp 10, there is seam, ramp 10 in circular inner support 30
The load of carrying will not be transferred to circular inner support 30, and the load that therefore ramp 10 bears does not interferes with annular
The stress of inner support 30.
The lower section of ramp 10 is provided with supporting construction, and supporting construction includes shaped steel lattice column 11, shaped steel lattice
The top of post 11 is connected to the lower surface of ramp 10, and the bottom of foundation ditch is fixed in its bottom.Ramp 10
The supporting construction of lower section also include bridging 14 and linking beam 12.Lead between adjacent steel lattice column 11
Cross bridging 14 and linking beam 12 connects.Linking beam 12 is made up of armored concrete, bridging 14 by
Steel construction is made.Bridging 14 and linking beam 12 can ensure that ramp 10 stablize.
Levelling bench 20 is connected to the bottom of described ramp 10.Levelling bench is arranged in the present embodiment
Central area bottom foundation ditch.The bottom surface of levelling bench 20 is provided with many support columns 21.Levelling bench 20
And support column 21 is reinforced concrete structure.
In the present embodiment, ramp 10 is made up of armored concrete, and the upper surface of ramp 10 is provided with
Tread plate.The both sides of ramp 10 are provided with anti-collision wall 13, and the top of described anti-collision wall 13 is provided with protection
Fence.The gradient of ramp 10 is 1:8.The setting of anti-collision wall 13 and protective fence be possible to prevent vehicle with
And personnel fall from trestle, thus improve the safety coefficient of trestle.
The trestle work structure that fetches earth under deep basal pit annular brace of the present utility model have the beneficial effect that setting of trestle
Put the problem that can avoid using slight slope to bring in prior art as driving passage.The bottom of ramp 10 sets
Be placed in the central area bottom melt pit, the construction machinery of the internal zones of different of such foundation ditch to trestle bottom away from
From more uniform, improve the efficiency of earthwork transportation.
The above is only preferred embodiment of the present utility model, and this utility model not does any shape
Restriction in formula, although this utility model is disclosed above with preferred embodiment, but it is not limited to this
Utility model, any those skilled in the art, in the scope without departing from technical solutions of the utility model
In, when the technology contents of available the disclosure above makes a little change or is modified to the equivalence enforcement of equivalent variations
Example, as long as being the content without departing from technical solutions of the utility model, according to technical spirit pair of the present utility model
Any simple modification, equivalent variations and the modification that above example is made, all still falls within this utility model technology
In the range of scheme.
Claims (6)
1. the trestle work structure that fetches earth under a deep basal pit annular brace, it is characterised in that including:
Ramp, its top is connected to the edge of foundation ditch, and the lower section of described ramp is provided with supporting construction,
Described supporting construction includes that shaped steel lattice column, the top of described shaped steel lattice column are connected under described ramp
Surface, the bottom of foundation ditch is fixed in its bottom；
Levelling bench, described levelling bench is connected to the bottom of described ramp, the bottom surface of described levelling bench
It is provided with many support columns.
2. the trestle work structure that fetches earth under deep basal pit annular brace as claimed in claim 1, it is characterised in that:
The described supporting construction of the lower section of described ramp also includes bridging and linking beam；Adjacent described steel lattice
Connected by bridging and linking beam between structure post；Described linking beam is made up of armored concrete, described in cut
Cutter support is made up of steel construction.
3. the trestle work structure that fetches earth under deep basal pit annular brace as claimed in claim 1, it is characterised in that:
Described ramp is made up of armored concrete, and the upper surface of described ramp is provided with tread plate.
4. the trestle work structure that fetches earth under deep basal pit annular brace as claimed in claim 1, it is characterised in that:
The both sides of described ramp are provided with anti-collision wall, and described crashproof coping is provided with protective fence.
5. the trestle work structure that fetches earth under deep basal pit annular brace as claimed in claim 1, it is characterised in that:
The gradient of described ramp is 1:8.
6. the trestle work structure that fetches earth under deep basal pit annular brace as claimed in claim 1, it is characterised in that:
Described levelling bench is arranged at the central area bottom foundation ditch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620027433.0U CN205475249U (en) | 2016-01-13 | 2016-01-13 | Landing stage structure that fetches earth under deep basal pit annular supports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620027433.0U CN205475249U (en) | 2016-01-13 | 2016-01-13 | Landing stage structure that fetches earth under deep basal pit annular supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205475249U true CN205475249U (en) | 2016-08-17 |
Family
ID=56667273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620027433.0U Expired - Fee Related CN205475249U (en) | 2016-01-13 | 2016-01-13 | Landing stage structure that fetches earth under deep basal pit annular supports |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205475249U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907024A (en) * | 2017-04-13 | 2017-06-30 | 北京市第三建筑工程有限公司 | Concrete trestle is constructed and its construction method with foundation ditch link node |
| CN108867662A (en) * | 2017-09-15 | 2018-11-23 | 叶长青 | Large span base pit stand construction with cable wire rope |
| CN110004936A (en) * | 2019-05-20 | 2019-07-12 | 中建四局土木工程有限公司 | A kind of unearthed ramp and construction method based on deep foundation pit supporting structure |
| CN110670602A (en) * | 2019-09-28 | 2020-01-10 | 深圳市地质局 | Compressive deformation control design method for radial support and the like |
| CN110820530A (en) * | 2019-10-18 | 2020-02-21 | 北京市第三建筑工程有限公司 | Concrete trestle and foundation pit connecting node structure and construction method thereof |
| CN112854234A (en) * | 2021-03-17 | 2021-05-28 | 上海宝冶集团有限公司 | Method for setting bidirectional annular ramp of large deep foundation pit |
| NL2031687A (en) * | 2021-07-28 | 2022-06-27 | China Construction First Group South China Corp Co Ltd | Ramp Supporting Structure and Construction Method of Narrow Foundation Pit |
-
2016
- 2016-01-13 CN CN201620027433.0U patent/CN205475249U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907024A (en) * | 2017-04-13 | 2017-06-30 | 北京市第三建筑工程有限公司 | Concrete trestle is constructed and its construction method with foundation ditch link node |
| CN108867662A (en) * | 2017-09-15 | 2018-11-23 | 叶长青 | Large span base pit stand construction with cable wire rope |
| CN109024612A (en) * | 2017-09-15 | 2018-12-18 | 叶长青 | Large span foundation pit support construction technology |
| CN109024613A (en) * | 2017-09-15 | 2018-12-18 | 叶长青 | Large span base pit stand construction |
| CN110004936A (en) * | 2019-05-20 | 2019-07-12 | 中建四局土木工程有限公司 | A kind of unearthed ramp and construction method based on deep foundation pit supporting structure |
| CN110670602A (en) * | 2019-09-28 | 2020-01-10 | 深圳市地质局 | Compressive deformation control design method for radial support and the like |
| CN110820530A (en) * | 2019-10-18 | 2020-02-21 | 北京市第三建筑工程有限公司 | Concrete trestle and foundation pit connecting node structure and construction method thereof |
| CN112854234A (en) * | 2021-03-17 | 2021-05-28 | 上海宝冶集团有限公司 | Method for setting bidirectional annular ramp of large deep foundation pit |
| NL2031687A (en) * | 2021-07-28 | 2022-06-27 | China Construction First Group South China Corp Co Ltd | Ramp Supporting Structure and Construction Method of Narrow Foundation Pit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160817 |