CN107938455A - The ruggedized construction and reinforcement means of the roadbed ground of Soft Soil Layer folder basaltic layer structure - Google Patents
The ruggedized construction and reinforcement means of the roadbed ground of Soft Soil Layer folder basaltic layer structure Download PDFInfo
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- CN107938455A CN107938455A CN201711218382.5A CN201711218382A CN107938455A CN 107938455 A CN107938455 A CN 107938455A CN 201711218382 A CN201711218382 A CN 201711218382A CN 107938455 A CN107938455 A CN 107938455A
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- reinforcing pile
- basaltic
- roadbed
- soft soil
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- 239000002689 soil Substances 0.000 title claims abstract description 49
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 230000002787 reinforcement Effects 0.000 title claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 63
- 238000005553 drilling Methods 0.000 claims abstract description 10
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 239000011083 cement mortar Substances 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 91
- 239000004567 concrete Substances 0.000 claims description 10
- 239000002344 surface layer Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Agronomy & Crop Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of ruggedized construction of the roadbed ground for Soft Soil Layer folder basaltic layer structure, it includes：At least two ranked first reinforcing pile, and each first reinforcing pile top is extend into the roadbed, and the first reinforcing pile lower end sequentially passes through Soft Soil Layer, basaltic layer and the Soft Soil Layer of basaltic layer lower part on the basaltic layer top of the roadbed ground；At least one ranked second reinforcing pile, and each second reinforcing pile is arranged in the Soft Soil Layer on the basaltic layer top.Present invention employs the foundation reinforcing structure and reinforcement means of " reinforced concrete drilling irrigates long stake+loading plate+cement mortar stirring stub+blotter " for high-speed railway settlement control.Employ the mode that long-short pile processing is combined, rigid pile is mutually coordinated with flexible pile effect so that Technological Economy is reasonable, strong applicability, has obvious technical economic benefit.
Description
Technical field
The present invention relates to subgrade engineering field, more particularly to a kind of Soft Soil Layer to press from both sides adding for the roadbed ground of basaltic layer structure
Fixing structure and reinforcement means.
Background technology
The key of high-speed railway subgrade design is settlement after construction Deformation control, particularly non-fragment orbit high-speed railway, its
The control requirement of sedimentation and deformation has reached grade, far above common railway and industry, the control standard of civil buildings.To be stringent
Post-construction settlement of subgrade deformation is controlled, high-speed railway weak soil, the main method of soft foundation processing have at present：It is mixing pile, compacted
Stake, CFG, screw rod pile etc.；Stake top structure mainly has rubble reinforcement cushion, dirt reinforcement cushion, armored concrete pile cover and raft
The patterns such as plate.If meeting in soft foundation, interlayer containing basalt is when being difficult to pass through, generally use engineering drill power traction hole, but this place
The requirement of reason method Construction control is stringent, progress is slow, project cost is excessive.
Therefore, it is necessary to provide the ruggedized construction and reinforcement means of a kind of fast, low cost the roadbed ground of construction speed, make
It is suitable for the roadbed ground with Soft Soil Layer folder basaltic layer structure.
The content of the invention
Present invention aim to address in the prior art the defects of, it provides a kind of Soft Soil Layer folder basaltic layer structure
The ruggedized construction and reinforcement means of roadbed ground.
The technical solution that the present invention is proposed with regard to above-mentioned technical problem is as follows：
The present invention provides a kind of ruggedized construction of the roadbed ground for Soft Soil Layer folder basaltic layer structure, it includes：
At least two ranked first reinforcing pile, and each first reinforcing pile top is extend into the roadbed, and described first adds
Gu stake lower end sequentially passes through the Soft Soil Layer on the basaltic layer top of the roadbed ground, basaltic layer and basaltic layer lower part
Soft Soil Layer；
At least one ranked second reinforcing pile, and each second reinforcing pile is arranged at the Soft Soil Layer on the basaltic layer top
In.
Preferably, further include：Blotter, it is laid on the weak soil layer surface on the basaltic layer top；And each institute
The top for stating the second reinforcing pile is connected with the blotter.
Preferably, also it is embedded with reinforcer inside the blotter.
Preferably, the reinforcer is TGXG.
Preferably, the roadbed is internally provided with loading plate；And each first reinforcing pile top extend into it is described
In loading plate.
Preferably, the lower face of the loading plate is provided with concrete cushion；And each first reinforcing pile top is equal
It is being extend into through after the concrete cushion in the loading plate.
Preferably, each first reinforcing pile lower end extend into supporting course or is abutted with supporting course.
Preferably, first reinforcing pile irrigates long stake for reinforced concrete drilling；Second reinforcing pile is cement bonded sand
Slurry stirring stub.
Preferably, the upper surface of the roadbed is additionally provided with surface layer of subgrade bed.
On the other hand, a kind of reinforcement means of the roadbed ground of Soft Soil Layer folder basaltic layer structure is also provided, it is included such as
Lower step：
S1, set at least one to ranked second reinforcing pile in the Soft Soil Layer on basaltic layer top；
S2, be laid with blotter on the top of the Soft Soil Layer on the basaltic layer top, and so that each described second adds
Gu the top of stake is connected with the blotter；
S3, the placement in layers above the blotter, to form roadbed, and set loading plate inside the roadbed；
S4, set the first reinforcing pile so that the first reinforcing pile top is extend into the roadbed, and causes described the
The lower end of one reinforcing pile sequentially passes through Soft Soil Layer, basaltic layer and the basaltic layer on the basaltic layer top of the roadbed ground
Supporting course is extend into after the Soft Soil Layer of lower part or is abutted with supporting course；
S5, in the roadbed upper surface placement in layers surface layer of subgrade bed.
The present invention be directed to deep (pine) weak soil to press from both sides basalt ground, there is provided one kind is used for high-speed railway sedimentation and deformation control
The foundation reinforcing structure of " reinforced concrete drilling irrigates long stake+loading plate+cement mortar stirring stub+blotter " of system with
And reinforcement means.Wherein, the part of " reinforced concrete drilling irrigates long stake+loading plate " is mainly used for settlement of foundation control, holds
Support plate is placed in embankment surface layer of subgrade bed bottom surface, and irrigating long stake using reinforced concrete drilling penetrates top soft stratum, basalt folder
Layer, lower part soft stratum to lower part supporting course；" cement mortar stir stub+blotter " part be then mainly used for basalt with
The processing of upper soft stratum, the stability of ground is improved with this, and reduction top soft foundation is grown stake to armored concrete and born
Friction.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of the ruggedized construction of the embodiment of the present invention one.
Fig. 2 is the flow for the reinforcement means that the Soft Soil Layer of the embodiment of the present invention two presss from both sides the roadbed ground of basaltic layer structure
Figure.
Embodiment
In order to which the technical features, objects and effects of the present invention are more clearly understood, now compare attached drawing and describe in detail
The embodiment of the present invention.
Embodiment one：
Fig. 1 shows the schematic cross-sectional view of the ruggedized construction in the present embodiment, and the ruggedized construction in the present invention is applicable
In the roadbed ground of Soft Soil Layer folder basaltic layer structure, the Soft Soil Layer folder basaltic layer structure is from top to bottom, to be followed successively by soft
The structure of soil layer-basaltic layer-Soft Soil Layer, and the weak soil includes mollisol.The ruggedized construction includes：
At least two ranked first reinforcing pile 5, and each first reinforcing pile, 5 top is extend into the roadbed 100, and described
One reinforcing pile, 5 lower end sequentially passes through Soft Soil Layer, basaltic layer and the basaltic layer on the basaltic layer top of the roadbed ground
The Soft Soil Layer of lower part, 5 lateral arrangement of the first reinforcing pile, and quantity are 2 or more, can be arranged in a symmetrical uniformly spaced setting；Described
The diameter and type of one reinforcing pile 5 can be depending on actual reinforcing need, and e.g., in the present embodiment, first reinforcing pile 5 is
Reinforced concrete drilling irrigates long stake, particularly preferably a diameter of 800-2000mm, 1200mm；And in order to ensure the firm of structure
Property, each first reinforcing pile, 5 lower end is extend into supporting course at the same time to be fixed or is abutted with supporting course；
At least one ranked second reinforcing pile 4, and the second reinforcing pile 4 described in each row is disposed longitudinally on the basaltic layer top
Soft Soil Layer in, 4 lateral arrangement of the second reinforcing pile, and quantity be 2 or more, can uniform intervals set；Likewise, described
The diameter and type of two reinforcing piles 4 can be depending on actual reinforcing need, and e.g., in the present embodiment, second reinforcing pile 4 is
Cement mortar stirs stub, particularly preferably a diameter of 300-1000mm, 500mm.
In the present embodiment, first reinforcing pile 5 is mainly used for settlement control, and the second reinforcing pile 4 is mainly used for profound
The processing of more than Wu Yan soft stratums, improves the stability of ground, and reduction top soft foundation is grown stake to armored concrete and born
Friction.By the way of long-short pile processing is combined, rigid pile is mutually coordinated with flexible pile effect, Technological Economy is reasonable, applicable for it
Property is strong, has obvious technical economic benefit.
Meanwhile the ruggedized construction further includes：Blotter 3, it is laid on the Soft Soil Layer table on the basaltic layer top
Face, and blotter 3 extends along the extending direction in the cross section of the roadbed ground；And the top of each second reinforcing pile 4
Portion is connected with the blotter 3, meanwhile, the upper end of the bottom of each second reinforcing pile 4 with the basaltic layer
Face abuts.Preferably, 3 thickness of blotter is 0.4-1.0m (particularly preferably 0.5m), particularly preferably graded broken stone
Bed course, and the particle diameter of rubble is not more than 50mm, is preferably 20mm.
To further enhance the settlement Control effect of basaltic layer top Soft Soil Layer, also it is embedded inside the blotter 3
There is reinforcer, and the reinforcer is TGXG.
Meanwhile also set up inside the roadbed 100 and have loading plate 1 (such as by pouring), the loading plate 1 can be by coagulation
Soil is made, and the upper surface of the loading plate 1 and the upper surface of the roadbed 100 maintain an equal level, on this basis, the roadbed 100
Upper surface be additionally provided with surface layer of subgrade bed 200, and 0.4-0.6 meters of the thickness of the surface layer of subgrade bed 200, filler is graded broken stone, and rubble
Particle diameter is no more than 50mm；
Each first reinforcing pile, 5 top is extend into the loading plate 1；It is more highly preferred to, to be held described in reinforcing
The degree that is connected firmly between 1 and first reinforcing pile 5 of support plate, the lower face of the loading plate 1 are additionally provided with concrete mats at the same time
Layer 2, the top of each first reinforcing pile 5 is through extending into the loading plate after the concrete cushion 2, thus
The top of first reinforcing pile 5 is more firmly fixed in the loading plate 1.
Embodiment two：
Fig. 2 shows a kind of reinforcement means of the roadbed ground of Soft Soil Layer folder basaltic layer structure, it includes the following steps：
S1, set at least one to ranked second reinforcing pile 4 in the Soft Soil Layer on basaltic layer top；
S2, be laid with blotter 3 on the top of the Soft Soil Layer on the basaltic layer top, and so that each described second adds
Gu the top of stake 4 is connected with the blotter 3；
S3, the placement in layers above the blotter 3, to form roadbed 100, and are set inside the roadbed 100
Loading plate 1；
S4, set the first reinforcing pile 5 so that 5 top of the first reinforcing pile is extend into the roadbed 100, and is caused
The lower end of first reinforcing pile 5 sequentially pass through the Soft Soil Layer on the basaltic layer top of the roadbed ground, basaltic layer and
Supporting course is extend into after the Soft Soil Layer of basaltic layer lower part or is abutted with supporting course；
S5, in the 100 upper surface placement in layers surface layer of subgrade bed 200 of roadbed.
It should be noted that the technical characteristic in above-described embodiment one, two can be combined what is obtained in any combination
Technical solution belongs to protection scope of the present invention.
In conclusion the present invention be directed to deep (pine) weak soil to press from both sides basalt ground, there is provided one kind is used for high-speed railway
The ground of " reinforced concrete drilling irrigates long stake+loading plate+cement mortar stirring stub+blotter " of settlement control
Ruggedized construction and reinforcement means.Wherein, the part of " reinforced concrete drilling irrigate long stake+loading plate " is mainly used for ground and sinks
Drop control, loading plate is placed in embankment surface layer of subgrade bed bottom surface, using reinforced concrete drilling irrigate long stake penetrate top soft stratum,
Basalt interlayer, lower part soft stratum to lower part supporting course；" cement mortar stirs stub+blotter " part is then mainly used for
The processing of basalt above soft stratum, the stability of ground is improved with this, reduces top soft foundation to armored concrete
The negative friction of long stake.Therefore, it is combined present invention employs long-short pile processing, the side that rigid pile is mutually coordinated with flexible pile effect
Formula so that Technological Economy is reasonable, strong applicability, has obvious technical economic benefit.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. ruggedized construction of roadbed ground for Soft Soil Layer folder basaltic layer structure, it is characterised in that including：At least two ranked first reinforcing pile, and each first reinforcing pile top is extend into the roadbed, first reinforcing pile Lower end sequentially passes through Soft Soil Layer, basaltic layer and the weak soil of basaltic layer lower part on the basaltic layer top of the roadbed ground Layer；At least one ranked second reinforcing pile, and each second reinforcing pile is arranged in the Soft Soil Layer on the basaltic layer top.
- 2. ruggedized construction as claimed in claim 1, it is characterised in that further include：Blotter, it is laid on the basalt The weak soil layer surface on layer top；And the top of each second reinforcing pile is connected with the blotter.
- 3. ruggedized construction as claimed in claim 2, it is characterised in that be also embedded with reinforcer inside the blotter.
- 4. ruggedized construction as claimed in claim 3, it is characterised in that the reinforcer is TGXG.
- 5. ruggedized construction as claimed in claim 1, it is characterised in that the roadbed is internally provided with loading plate；And each institute The first reinforcing pile top is stated to extend into the loading plate.
- 6. ruggedized construction as claimed in claim 5, it is characterised in that the lower face of the loading plate is provided with concrete mats Layer；And each first reinforcing pile top is being extend into the loading plate through after the concrete cushion.
- 7. ruggedized construction as claimed in claim 1, it is characterised in that each first reinforcing pile lower end extend into supporting course Or abutted with supporting course.
- 8. ruggedized construction as claimed in claim 1, it is characterised in that first reinforcing pile irrigates for reinforced concrete drilling Long stake；Second reinforcing pile stirs stub for cement mortar.
- 9. ruggedized construction as claimed in claim 1, it is characterised in that the upper surface of the roadbed is additionally provided with surface layer of subgrade bed.
- 10. a kind of reinforcement means of the roadbed ground of Soft Soil Layer folder basaltic layer structure, it is characterised in that include the following steps：S1, set at least one to ranked second reinforcing pile in the Soft Soil Layer on basaltic layer top；S2, the basaltic layer top Soft Soil Layer top be laid with blotter, and cause each second reinforcing pile Top be connected with the blotter；S3, the placement in layers above the blotter, to form roadbed, and set loading plate inside the roadbed；S4, set the first reinforcing pile so that the first reinforcing pile top is extend into the roadbed, and causes described first to add Gu the lower end of stake sequentially passes through Soft Soil Layer, basaltic layer and the basaltic layer lower part on the basaltic layer top of the roadbed ground Soft Soil Layer after extend into supporting course or abutted with supporting course；S5, in the roadbed upper surface placement in layers surface layer of subgrade bed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218382.5A CN107938455A (en) | 2017-11-28 | 2017-11-28 | The ruggedized construction and reinforcement means of the roadbed ground of Soft Soil Layer folder basaltic layer structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218382.5A CN107938455A (en) | 2017-11-28 | 2017-11-28 | The ruggedized construction and reinforcement means of the roadbed ground of Soft Soil Layer folder basaltic layer structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411714A (en) * | 2018-05-09 | 2018-08-17 | 中铁工程设计咨询集团有限公司 | The high peg board of roadbed and its construction method |
| CN108589757A (en) * | 2018-06-29 | 2018-09-28 | 湖南省第六工程有限公司 | Anti-settling foundation structure |
| CN108824097A (en) * | 2018-07-25 | 2018-11-16 | 中铁七局集团第工程有限公司 | Prefabricated GFRP pipe concrete stake and armoured concrete slab overhead type roadbed pile slab structure |
| CN110130169A (en) * | 2019-05-08 | 2019-08-16 | 长江大学 | A kind of road foundation structure |
| CN111663391A (en) * | 2020-07-06 | 2020-09-15 | 西安科技大学 | Roadbed double-hard-shell in-situ reinforcing and filling structure and method for muddy soft land area |
| CN112682063A (en) * | 2020-12-31 | 2021-04-20 | 中铁二院工程集团有限责任公司 | Support structure for inhibiting bottom deformation of high-ground-stress soft rock tunnel |
| CN113215864A (en) * | 2021-05-08 | 2021-08-06 | 中铁二院工程集团有限责任公司 | Earth-rock interbed embankment structure and design method thereof |
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| CN106894432A (en) * | 2017-04-08 | 2017-06-27 | 山东省建筑科学研究院 | A kind of pile variation rigidity reinforcement cushion composite foundation and its construction method |
| CN208055780U (en) * | 2017-11-28 | 2018-11-06 | 中铁工程设计咨询集团有限公司 | Soft Soil Layer presss from both sides the ruggedized construction of the roadbed ground of basaltic layer structure |
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| CN101654899A (en) * | 2009-09-17 | 2010-02-24 | 西南交通大学 | Liquified soil foundation-bed shock-resistant strengthening structure of high-speed railway |
| CN103321118A (en) * | 2013-07-09 | 2013-09-25 | 中铁第四勘察设计院集团有限公司 | Bridge road transition section roadbed structure of deep layer yielding ground regions |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411714A (en) * | 2018-05-09 | 2018-08-17 | 中铁工程设计咨询集团有限公司 | The high peg board of roadbed and its construction method |
| CN108589757A (en) * | 2018-06-29 | 2018-09-28 | 湖南省第六工程有限公司 | Anti-settling foundation structure |
| CN108589757B (en) * | 2018-06-29 | 2023-11-03 | 湖南省第六工程有限公司 | Anti-sedimentation foundation structure |
| CN108824097A (en) * | 2018-07-25 | 2018-11-16 | 中铁七局集团第工程有限公司 | Prefabricated GFRP pipe concrete stake and armoured concrete slab overhead type roadbed pile slab structure |
| CN110130169A (en) * | 2019-05-08 | 2019-08-16 | 长江大学 | A kind of road foundation structure |
| CN111663391A (en) * | 2020-07-06 | 2020-09-15 | 西安科技大学 | Roadbed double-hard-shell in-situ reinforcing and filling structure and method for muddy soft land area |
| CN112682063A (en) * | 2020-12-31 | 2021-04-20 | 中铁二院工程集团有限责任公司 | Support structure for inhibiting bottom deformation of high-ground-stress soft rock tunnel |
| CN112682063B (en) * | 2020-12-31 | 2023-01-10 | 中铁二院工程集团有限责任公司 | Support structure for inhibiting bottom deformation of high-ground-stress soft rock tunnel |
| CN113215864A (en) * | 2021-05-08 | 2021-08-06 | 中铁二院工程集团有限责任公司 | Earth-rock interbed embankment structure and design method thereof |
| CN113215864B (en) * | 2021-05-08 | 2022-05-03 | 中铁二院工程集团有限责任公司 | Earth-rock interbed embankment structure and design method thereof |
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