CN208039220U - A kind of old roadbed develops the base formation of stake reinforcing in column hammer - Google Patents
A kind of old roadbed develops the base formation of stake reinforcing in column hammer Download PDFInfo
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- CN208039220U CN208039220U CN201820369845.1U CN201820369845U CN208039220U CN 208039220 U CN208039220 U CN 208039220U CN 201820369845 U CN201820369845 U CN 201820369845U CN 208039220 U CN208039220 U CN 208039220U
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Abstract
The utility model discloses a kind of old roadbeds to develop the base formation that stake is reinforced in column hammer, stake, strong rammer disposition layer, back fill course, gravel extruded layer and fine sand layer are developed including column hammer, the fine sand layer, gravel extruded layer and strong rammer disposition layer are sequentially distributed from bottom to top；Stake is developed by column hammer and is constituted in roadbed bottom, since column hammer develops in a forming process, stone is morcelled also due to outer force effect enters in soft layer around in the middle part of formation of pile, improve reduces load pressure by increasing stress area, increase the service life of road, and after pile body is formed, broken stone pile forms a good discharge structure, ground shearing strength can be improved, to accelerate the exclusion of water in weak soil, shorten the Settlement Consolidation time, with certain waterproof prevention waterlogging ability, in addition in part shallow poor subsoil layer area, column hammer develop stake can run through entirely directly contact harder area, play the role of stress concentration, reduce the burden of soft layer.
Description
Technical field
The utility model belongs to technical field of road construction, and in particular to a kind of old roadbed develops the ground of stake reinforcing in column hammer
Base constructs.
Background technology
With the very fast development of China's economy, society also increases highway, railway demand year by year, while to highway and iron
The quality requirement on road is also higher and higher, thus handle well weak soil to highway with railway quality problems to ensureing that China's economy is quickly sent out
Exhibition plays most important effect.
The transformation on original old road of weak soil usually by original road it is old soil and stone excavate, then be laid with gravel and
Then concrete carries out backfill laying for reinforcing again, but may rain damage roadbed in the presence of a harsh environment, collapse,
Lead to pavement damage.
Utility model content
The purpose of this utility model is to provide a kind of old roadbeds to develop the base formation that stake is reinforced in column hammer, in solution
It states and proposes that the transformation on the old road of original weak soil usually excavates the old soil of original road and stone in background technology, be then laid with
Then gravel and concrete carry out backfill laying for reinforcing again, but may rain damage roadbed in the presence of a harsh environment, hair
Raw the problem of collapsing, leading to pavement damage.
To achieve the above object, the utility model provides the following technical solutions：A kind of old roadbed develops stake in column hammer and reinforces
Base formation, including column hammer develops stake, strong rammer disposition layer, back fill course, gravel extruded layer and fine sand layer, the fine sand layer,
Gravel extruded layer and strong rammer disposition layer are sequentially distributed from bottom to top, and the column hammer develops stake and extends vertically through the gravel extruded layer,
The column hammer develops and is equipped with the strong rammer disposition layer on stake and the gravel extruded layer, and the upside of the strong rammer disposition layer is laid with
There is the back fill course, road surface structare layer is equipped on the upside of the back fill course.
Preferably, the column hammer develops stake and is filled by sand gravel, and sand gravel is by lime stone, medium sandstone, fine grained sand
Rock, packsand and dolomite composition, and sand gravel grain size is less than 50 millimeters, wherein five to five ten millimeters of granule content is more than
50 percent, in addition the clay content of sand gravel is less than 5 percent, and it is multiple that the column hammer, which develops quantity, and the column is hammered into shape
Stake distribution triangular in shape is developed, it is 250 centimetres that the two neighboring column hammer, which develops the distance between stake,.
Preferably, the height that the column hammer develops stake is 80 centimetres, and the height of the back fill course is 150 millis
Rice, and the back fill course is filled by sand gravel and soil, the strong rammer disposition layer thickness is ten centimetres, at the strong rammer
Setting layer, cement and gravel mix again.
Preferably, the height of the gravel extruded layer is equal to column hammer and develops the height of stake, the gravel extruded layer by
Sand gravel is filled, and the diameter of sand gravel is less than 30 centimetres.
Preferably, the width of the strong rammer disposition layer is more than the width of the back fill course, and the back fill course is trapezoidal,
The road surface structare layer is uniformly laid on the outer surface of the back fill course.
Compared with prior art, the utility model has the beneficial effects that：Roadbed bottom is developed stake by column hammer and is constituted, due to column
Hammer develops in a forming process, and broken stone pile is moved outward by external load effect, and rubble, which generates the lateral soil body, to be squeezed, shakes
Effect so that broken stone pile surrounding soil particle position rearranges and tends to be closely knit, morcels stone in the middle part of formation of pile also due to outer
Force effect enters in weak figure layer around so that the structure and mechanical property of the soil body change, improve by increase by
After power region reduces load pressure, increases the service life of road, and pile body is formed, broken stone pile forms a good draining
Ground shearing strength can be improved in structure, to accelerate the exclusion of water in weak soil, shortens the Settlement Consolidation time, prevents with certain
Water prevent waterlogging ability, in addition part shallow poor subsoil layer area, column hammer develop stake can run through entirely directly contact compared with hard place
Stress concentration is played the role of in area, reduces the burden of soft layer.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is that the column hammer of the utility model develops a distribution schematic diagram；
Fig. 3 is that the column hammer of the utility model develops pilework schematic diagram；
In figure：1- columns hammer develop stake, 2- strong rammers disposition layer, 3- back fill courses, 4- gravels extruded layer, 5- road surface structare layers,
6- fine sand layers.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of old roadbed develops the ground of stake reinforcing in column hammer
Base constructs, including column hammer develops stake 1, strong rammer disposition layer 2, back fill course 3, gravel extruded layer 4 and fine sand layer 6, fine sand layer 6, sand
Gravel extruded layer 4 and strong rammer disposition layer 2 are sequentially distributed from bottom to top, and column hammer develops stake 1 and extends vertically through gravel extruded layer 4, column hammer punching
Expand on stake 1 and gravel extruded layer 4 and be equipped with strong rammer disposition layer 2, the upside of strong rammer disposition layer 2 is equipped with back fill course 3, backfill
The upside of layer 3 is equipped with road surface structare layer 5.
In the present embodiment, column hammer develops stake 1 and extends vertically through gravel extruded layer 4, be given a shock during column hammer develops,
It squeezes, act on silt etc. and form the larger broken stone pile of density in weak figure layer, energy is by broken stone pile to weak figure layer
Bottom hole, surrounding transmit, the soil body around stake is compacted, compacting, in this course, due to rubble column hammer develop effect under by
Power is different, and part rubble enters in the weak soil around broken stone pile, forms rubble and the cementing dense belt of soft layer, improves
The structure of original soil layer improves the bearing capacity of original ground, soil body integral anti-shearing intensity is improved, to reduce road engineering
Subgrade settlement.
In the present embodiment, old pavement is first dug one meter deeply, bottom is then spread into back-up sand gravel, is then tamped with column hammer
Operation, when impact holing, foundation soil body can be by the lateral compression effect hammered into shape from column and the vertical impact force from hammer bottom, column
Shock wave will be generated during developing for hammer and thus the diffusion effect of caused impact stress, foundation soil body will obtain sufficient
Power, the soil body develop stake 1 by closely knit reinforcing, so as to form gravel extruded layer 4 and column hammer, are passing through gravel and concrete paving
If strong rammer disposes layer 2, increase the stablizing effect of structure, carries out backfill and the laying on road surface on this basis, form backfill
Layer 3 and road surface structare layer 5.
Further, column hammer develops stake 1 and is filled by sand gravel, and sand gravel is by lime stone, medium sandstone, fine grained sand
Rock, packsand and dolomite composition, and sand gravel grain size is less than 50 millimeters, wherein five to five ten millimeters of granule content is more than
50 percent, in addition the clay content of sand gravel is less than 5 percent, and it is multiple that column hammer, which develops 1 quantity of stake, and column hammer develops stake 1
Distribution triangular in shape, it is 250 centimetres that two neighboring column hammer, which develops the distance between stake 1,.
In the present embodiment, column hammer develops stake 1 and is filled by sand gravel, and sand gravel is by lime stone, medium sandstone, fine grained sand
Rock, packsand and dolomite composition, it is multiple that column hammer, which develops 1 quantity of stake, and column is hammered into shape and develops 1 distribution triangular in shape of stake, adjacent two
It is 250 centimetres that a column hammer, which develops the distance between stake 1, ensures that column hammer develops stake 1 after its formation and has reliable carrying energy
Power, and distribution gap facilitates the anti-pressure ability for being drained, and meeting road surface simultaneously.
Further, the height that column hammer develops stake 1 is 80 centimetres, and the height of back fill course 3 is 150 millimeters, and
Back fill course 3 is filled by sand gravel and soil, and it is ten centimetres that strong rammer, which disposes 2 thickness of layer, and strong rammer disposes layer 2 cement and sand again
Gravel mixes.
In the present embodiment, the height that column hammer develops stake 1 is 80 centimetres, and the height of back fill course 3 is 150 millimeters,
And back fill course 3 is filled by sand gravel and soil, ensures the using effect on road surface, increases the service life of road occupation, strong rammer
It is ten centimetres to dispose 2 thickness of layer, and cement and gravel mix strong rammer disposition layer 2 again, and standard is carried out for the laying of back fill course 3
It is standby, it is convenient that laying compacting is carried out to back fill course 3.
Further, the height of gravel extruded layer 4 is equal to the height that column hammer develops stake 1, and gravel extruded layer 4 is filled out by sand gravel
It fills, and the diameter of sand gravel is less than 30 centimetres.
In the present embodiment, the height of gravel extruded layer 4 is equal to the height that column hammer develops stake 1, and gravel extruded layer 4 is by sand gravel
It fills, and the diameter of sand gravel is less than 30 centimetres, fully gravel can be squeezed in column is hammered into shape and develops 1 forming process of stake
Sand gravel in layer 4 is squeezed, and rock-steady structure is formed.
Further, the width of strong rammer disposition layer 2 is more than the width of back fill course 3, and back fill course 3 is trapezoidal, road surface knot
Structure layer 5 is uniformly laid on the outer surface of back fill course 3.
In the present embodiment, strong rammer disposes width of the width more than back fill course 3 of layer 2, and back fill course 3 is trapezoidal, road surface
Structure sheaf 5 is uniformly laid on the outer surface of back fill course 3, ensures that road surface has reliable bearing capacity, and be conducive to carry out
Draining.
The operation principle and process for using of the utility model：After the utility model installs, old pavement is first dug deep one
Then bottom is spread back-up sand gravel by rice, then carry out tamping operation with column hammer, when impact holing, foundation soil body can by from
The lateral compression effect of column hammer and the vertical impact force from hammer bottom, column hammer will generate shock wave and thus draw during developing
The diffusion effect of the impact stress risen, foundation soil body will obtain sufficient power, and the soil body is by closely knit reinforcing, so as to form gravel
Extruded layer 4 and column hammer develop stake 1, dispose layer 2 being laid with strong rammer by gravel and concrete, increase the stablizing effect of structure,
Backfill and the laying on road surface are carried out on this basis, form back fill course 3 and road surface structare layer 5.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of old roadbed develops the base formation of stake reinforcing in column hammer, it is characterised in that：Stake (1), strong rammer are developed including column hammer
Dispose layer (2), back fill course (3), gravel extruded layer (4) and fine sand layer (6), the fine sand layer (6), gravel extruded layer (4) and
Strong rammer disposition layer (2) is sequentially distributed from bottom to top, and the column hammer develops stake (1) and extends vertically through the gravel extruded layer (4), described
Column hammer develops and is equipped with the strong rammer disposition layer (2) on stake (1) and the gravel extruded layer (4), the strong rammer disposition layer (2)
Upside is equipped with the back fill course (3), and road surface structare layer (5) is equipped on the upside of the back fill course (3).
2. a kind of old roadbed according to claim 1 develops the base formation of stake reinforcing in column hammer, it is characterised in that：It is described
Column hammer develops stake (1) and is filled by sand gravel, and sand gravel is by lime stone, medium sandstone, fine sandstone, packsand and dolomite
Composition, and sand gravel grain size is less than 50 millimeters, wherein five to five ten millimeters of granule content is more than 50 percent, other sand
The clay content of gravel is less than 5 percent, and it is multiple that the column hammer, which develops stake (1) quantity, and it is in three that column hammer, which develops stake (1),
Angular distribution, it is 250 centimetres that the two neighboring column hammer, which develops the distance between stake (1),.
3. a kind of old roadbed according to claim 1 develops the base formation of stake reinforcing in column hammer, it is characterised in that：It is described
The height that column hammer develops stake (1) is 80 centimetres, and the height of the back fill course (3) is 150 millimeters, and the backfill
Soil layer (3) is filled by sand gravel and soil, and described strong rammer disposition layer (2) thickness is ten centimetres, the strong rammer disposition layer (2)
Cement and gravel mix again.
4. a kind of old roadbed according to claim 1 develops the base formation of stake reinforcing in column hammer, it is characterised in that：It is described
The height of gravel extruded layer (4) is equal to the height that column hammer develops stake (1), and the gravel extruded layer (4) is filled by sand gravel
It forms, and the diameter of sand gravel is less than 30 centimetres.
5. a kind of old roadbed according to claim 1 develops the base formation of stake reinforcing in column hammer, it is characterised in that：It is described
Strong rammer disposes width of the width more than the back fill course (3) of layer (2), and the back fill course (3) is trapezoidal, the road surface knot
Structure layer (5) is uniformly laid on the outer surface of the back fill course (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820369845.1U CN208039220U (en) | 2018-03-16 | 2018-03-16 | A kind of old roadbed develops the base formation of stake reinforcing in column hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820369845.1U CN208039220U (en) | 2018-03-16 | 2018-03-16 | A kind of old roadbed develops the base formation of stake reinforcing in column hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208039220U true CN208039220U (en) | 2018-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820369845.1U Active CN208039220U (en) | 2018-03-16 | 2018-03-16 | A kind of old roadbed develops the base formation of stake reinforcing in column hammer |
Country Status (1)
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| CN (1) | CN208039220U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979846A (en) * | 2019-05-21 | 2020-11-24 | 牟航 | High-speed railway roadbed reinforcement treatment construction technology |
| CN112030614A (en) * | 2020-09-14 | 2020-12-04 | 中铁二十一局集团第六工程有限公司 | Roadbed construction method based on large-thickness collapsible loess area column hammer impact pile extension and cement improved soil |
-
2018
- 2018-03-16 CN CN201820369845.1U patent/CN208039220U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979846A (en) * | 2019-05-21 | 2020-11-24 | 牟航 | High-speed railway roadbed reinforcement treatment construction technology |
| CN112030614A (en) * | 2020-09-14 | 2020-12-04 | 中铁二十一局集团第六工程有限公司 | Roadbed construction method based on large-thickness collapsible loess area column hammer impact pile extension and cement improved soil |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100024 Beijing, Guanzhuang, Chaoyang District, Zhou Patentee after: CCCC comprehensive planning and Design Institute Co.,Ltd. Address before: 100024 No. 1 Design Institute, zhoujiajing courtyard, Guanzhuang, Chaoyang District, Beijing Patentee before: CCCC HIGHWAY SURVEY & DESIGN Co.,Ltd. OF FHEC |
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| CP03 | Change of name, title or address |