CN101974871A - Short roadbed transition section structure between culverts of high speed railway - Google Patents
Short roadbed transition section structure between culverts of high speed railway Download PDFInfo
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- CN101974871A CN101974871A CN 201010513682 CN201010513682A CN101974871A CN 101974871 A CN101974871 A CN 101974871A CN 201010513682 CN201010513682 CN 201010513682 CN 201010513682 A CN201010513682 A CN 201010513682A CN 101974871 A CN101974871 A CN 101974871A
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- culvert
- roadbed
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- transition section
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Abstract
The invention discloses a short roadbed transition section structure between culverts of a high speed railway. The structure comprises an inverted trapezoidal transition section and an intra-culvert transition section roadbed, wherein the inverted trapezoidal transition section roadbed is laid between a culvert and a roadbed; the intra-culvert transition section roadbed is laid between two adjacent culverts; both the inverted trapezoidal transition section and the intra-culvert transition section roadbed comprise surface layers of sub-grade beds; the intra-culvert transition section roadbed and the inverted trapezoidal transition section below the surface layers of the sub-grade beds are filled with the same material; the material is graded gravels doped with cement which accounts for 3 to 5 weight percent of graded gravels; and the space between the central lines of the two adjacent culverts is less than or equal to 45m. When the space between the central lines of the two adjacent culverts of the high speed railway is less than or equal to 45m, the graded gravels doped with cement which is 3 to 5 weight percent of graded gravels are filled in the intra-culvert transition section roadbed and the inverted trapezoidal transition section below the surface layers of the sub-grade beds; and thus the dynamic response superposition brought by the over-short distance between the two adjacent culverts can be resisted, and the rigidity between buildings and stable transition of the sedimentation can be realized.
Description
Technical field
The present invention relates to the high-speed railway subgrade technical field, be specifically related to short circuit base changeover portion structure between high-speed railway culvert-culvert.
Technical background
Design about embankment and transversary thing (grade separation frame structure, box culvert etc.) changeover portion in " high-speed railway design specifications (trying) " [TB10621-2009 J971-2009] mainly contains following provisions: roadbed and transversary thing (grade separation frame structure, box culvert etc.) junction, changeover portion should be set, can adopt the vertically section of falling trapezoidal transition form of road along the line.From the above, in " high-speed railway design specifications (trying) ", the single changeover portion of culvert and roadbed there is detailed design guidance.But when high-speed railway runs into special traffic, drainage requirement, need in short distance, a plurality of culverts be set.When adjacent culvert distance more in short-term, design culvert and roadbed changeover portion separately by each culvert, can produce the phenomenon that two adjacent changeover portions intersect, the dynamic response of bullet train this moment on adjacent two culverts can produce stack, influence the bullet train even running, cause the reduction of comfort level, influence high speed traveling safety.
Summary of the invention
The objective of the invention is at topic between the existence of above-mentioned background technology, short circuit base changeover portion structure between the high-speed railway culvert-culvert of the smooth-going transition of integral rigidity of roadbed between a kind of high-speed railway culvert that can guarantee close together and the culvert is provided, use the roadbed changeover portion of this structure, steadily passing through of bullet train can be guaranteed, and the high-speed railway stack that dynamic response produces between culvert and culvert can be reduced.
For achieving the above object, short circuit base changeover portion structure between a kind of high-speed railway culvert-culvert provided by the invention, it is characterized in that: it comprises changeover portion roadbed between section of falling the trapezoidal transition and culvert, wherein, the described section of falling the trapezoidal transition is layed between culvert and the roadbed, the changeover portion roadbed is layed between adjacent two culverts between culvert, the changeover portion roadbed includes surface layer of subgrade bed between described section of falling the trapezoidal transition and culvert, described surface layer of subgrade bed fills commaterial with changeover portion roadbed and surface layer of subgrade bed between the culvert of lower part with the section of falling the trapezoidal transition of lower part, this material is to be mixed with the graded broken stone that percentage by weight is 3%～5% cement, and the spacing between the described adjacent two culvert center lines is≤45m.
Among the embodiment 1, described culvert is positioned at the embankment location.
Among the embodiment 2, described culvert is positioned at the cutting location, the concrete backfill of the above intensity of C25 of the foundation ditch of culvert both sides.
Preferably, described surface layer of subgrade bed is that the compacting criteria of the graded broken stone of 3%～5% cement is coefficient of consolidation K 〉=0.95 with the percentage by weight that is mixed with that changeover portion roadbed and surface layer of subgrade bed between the culvert of lower part fill with the section of falling the trapezoidal transition of lower part, coefficient of subgrade reaction K
30〉=150Mpa/m, dynamic deformation module Evd 〉=50Mpa.
Preferable, described material is to be mixed with the graded broken stone that percentage by weight is 3% cement.
Described surface layer of subgrade bed is that the graded broken stone of 5% cement fills by being mixed with percentage by weight, and the compacting criteria of surface layer of subgrade bed satisfies coefficient of consolidation K 〉=0.97, coefficient of subgrade reaction K
30〉=190Mpa/m, dynamic deformation module Evd 〉=55Mpa.
The invention has the advantages that:
(1) when the spacing between the adjacent two culvert center lines of high-speed railway be≤during 45m, surface layer of subgrade bed fills performance with changeover portion roadbed and surface layer of subgrade bed between the culvert of lower part with the section of falling the trapezoidal transition of lower part and better is mixed with the graded broken stone that percentage by weight is 3%～5% cement, the dynamic response stack that adjacent two culvert hypotelorisms bring can not only be resisted, and rigidity and sedimentation smooth transition between structure can be realized.
(2) design scheme that adopts the present invention to propose, the actual measurement sedimentation shows, when changeover portion roadbed and surface layer of subgrade bed are weight percentage the graded broken stone of 3% cement with the section of falling the trapezoidal transition filling material of lower part between surface layer of subgrade bed is with the culvert of lower part, the about 0.03mm of the maximum settlement amount after construction of roadbed between high-speed railway culvert and culvert; Field measurement dynamic response parameter indicating: the surface layer of subgrade bed end face of this section roadbed, the dynamic stress amplitude is 15.84kpa to the maximum, and acceleration amplitude is 24.82m/s to the maximum
2, moving displacement amplitude is 0.037mm to the maximum, and the vibration velocity amplitude is 9.29m/s to the maximum, all remains at low levels, and satisfies the dynamic stability of bullet train operation fully.The design scheme that the present invention's proposition is described is practical, can provide solid sub rail foundation and smooth-going transition for short circuit base between culvert～culvert of high-speed railway spacing≤45m.
Description of drawings
Fig. 1 adopts the structural representation of embodiment 1 for the embankment location;
Fig. 2 adopts the structural representation of embodiment 2 for the cutting location;
Wherein, 1-surface layer of subgrade bed, 2-ground, 3-culvert, 4-foundation ditch, 5-surface layer of subgrade bed 1 section of falling the trapezoidal transition with the lower part, 6-above-ground route, 7-surface layer of subgrade bed 1 are with changeover portion roadbed 7 between the culvert of lower part.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples:
Among the embodiment 1, described surface layer of subgrade bed 1 is that the graded broken stone of 5% cement fills by being mixed with percentage by weight, and the compacting criteria of surface layer of subgrade bed 1 satisfies coefficient of consolidation K 〉=0.97, coefficient of subgrade reaction K
30〉=190Mpa/m, dynamic deformation module Evd 〉=55Mpa.
Among the embodiment 1, surface layer of subgrade bed 1 is that the compacting criteria of the graded broken stone of 3%～5% cement is coefficient of consolidation K 〉=0.95 with the percentage by weight that is mixed with that changeover portion roadbed 7 between the culvert of lower part and surface layer of subgrade bed 1 fill with the section of falling the trapezoidal transition 5 of lower part, coefficient of subgrade reaction K
30〉=150Mpa/m, dynamic deformation module Evd 〉=50Mpa.
Among the embodiment 1, the material that surface layer of subgrade bed 1 fills with the section of falling the trapezoidal transition 5 of lower part with changeover portion roadbed 7 between the culvert of lower part and surface layer of subgrade bed 1 is preferably and is mixed with the graded broken stone that percentage by weight is 3% cement.
Shown in Figure 1 is continuously arranged two changeover portion structures between the culvert 3 in embankment location, when continuously arranged culvert 3 more than 2, and when satisfying spacing L between adjacent two culverts, 3 center lines≤45m, also can adopt said structure.
Among the embodiment 2, described surface layer of subgrade bed 1 is that the graded broken stone of 5% cement fills by being mixed with percentage by weight, and the compacting criteria of surface layer of subgrade bed 1 satisfies coefficient of consolidation K 〉=0.97, coefficient of subgrade reaction K
30〉=190Mpa/m, dynamic deformation module Evd 〉=55Mpa.
Among the embodiment 2, surface layer of subgrade bed 1 is that the compacting criteria of the graded broken stone of 3%～5% cement is coefficient of consolidation K 〉=0.95 with the percentage by weight that is mixed with that changeover portion roadbed 7 between the culvert of lower part and surface layer of subgrade bed 1 fill with the section of falling the trapezoidal transition 5 of lower part, coefficient of subgrade reaction K
30〉=150Mpa/m, dynamic deformation module Evd 〉=50Mpa.
Among the embodiment 2, the material that surface layer of subgrade bed 1 fills with the section of falling the trapezoidal transition 5 of lower part with changeover portion roadbed 7 between the culvert of lower part and surface layer of subgrade bed 1 is preferably and is mixed with the graded broken stone that percentage by weight is 3% cement.
Shown in Figure 2 is continuously arranged two changeover portion structures between the culvert in cutting location, when continuously arranged culvert 3 more than 2, and when satisfying spacing L between adjacent two culverts, 3 center lines≤45m, also can adopt said structure.
The content that is not described in detail belongs to this area professional and technical personnel's known prior art.
Claims (6)
1. short circuit base changeover portion structure between a high-speed railway culvert-culvert, it is characterized in that: it comprises changeover portion roadbed between section of falling the trapezoidal transition and culvert, wherein, the described section of falling the trapezoidal transition is layed between culvert (3) and the roadbed, the changeover portion roadbed is layed between adjacent two culverts (3) between culvert, the changeover portion roadbed includes surface layer of subgrade bed (1) between described section of falling the trapezoidal transition and culvert, described surface layer of subgrade bed (1) fills commaterial with changeover portion roadbed (7) between the culvert of lower part and surface layer of subgrade bed (1) with the section of falling the trapezoidal transition (5) of lower part, this material is to be mixed with the graded broken stone that percentage by weight is 3%～5% cement, and the spacing between described adjacent two culverts (3) center line is≤45m.
2. short circuit base changeover portion structure between high-speed railway culvert-culvert according to claim 1, it is characterized in that: described culvert (3) is positioned at the embankment location.
3. short circuit base changeover portion structure between high-speed railway culvert-culvert according to claim 1, it is characterized in that: described culvert (3) is positioned at the cutting location, the concrete backfill of the above intensity of C25 of the foundation ditch (4) of culvert (3) both sides.
4. short circuit base changeover portion structure between high-speed railway culvert-culvert according to claim 1, it is characterized in that: described surface layer of subgrade bed (1) is that the compacting criteria of the graded broken stone of 3%～5% cement is coefficient of consolidation K 〉=0.95 with the percentage by weight that is mixed with that changeover portion roadbed (7) between the culvert of lower part and surface layer of subgrade bed (1) fill with the section of falling the trapezoidal transition (5) of lower part, coefficient of subgrade reaction K
30〉=150Mpa/m, dynamic deformation module Evd 〉=50Mpa.
5. short circuit base changeover portion structure between high-speed railway culvert-culvert according to claim 1 is characterized in that: described material is to be mixed with the graded broken stone that percentage by weight is 3% cement.
6. short circuit base changeover portion structure between high-speed railway culvert-culvert according to claim 1, it is characterized in that: described surface layer of subgrade bed (1) is that the graded broken stone of 5% cement fills by being mixed with percentage by weight, and the compacting criteria of surface layer of subgrade bed (1) satisfies coefficient of consolidation K 〉=0.97, coefficient of subgrade reaction K
30〉=190Mpa/m, dynamic deformation module Evd 〉=55Mpa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010513682 CN101974871A (en) | 2010-10-19 | 2010-10-19 | Short roadbed transition section structure between culverts of high speed railway |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010513682 CN101974871A (en) | 2010-10-19 | 2010-10-19 | Short roadbed transition section structure between culverts of high speed railway |
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| CN101974871A true CN101974871A (en) | 2011-02-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425086A (en) * | 2011-09-16 | 2012-04-25 | 中铁第四勘察设计院集团有限公司 | Cement graded crushed rock filling method for foundation of transition section of high-speed passenger special line railway |
| CN106836034A (en) * | 2017-03-09 | 2017-06-13 | 山西省交通科学研究院 | A kind of high roadbed slab culvert flexibility off-load system and construction method |
| CN110258367A (en) * | 2019-06-24 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | Transition structure is contained on a kind of culvert and road |
| CN113914162A (en) * | 2021-09-17 | 2022-01-11 | 山东高速工程建设集团有限公司 | Rapid construction method for partial filling of widened roadbed of highway |
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| JP2008196257A (en) * | 2007-02-15 | 2008-08-28 | Railway Technical Res Inst | Track displacement restraining structure by low elastic member |
| CN201390925Y (en) * | 2009-04-08 | 2010-01-27 | 中铁二院工程集团有限责任公司 | Transition section subgrade structure of high speed railway bridges |
| CN101691724A (en) * | 2009-09-17 | 2010-04-07 | 西南交通大学 | Liquefied soil foundation quake-proof road-bridge transition section structure of ballastless track of high-speed railway |
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2010
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008196257A (en) * | 2007-02-15 | 2008-08-28 | Railway Technical Res Inst | Track displacement restraining structure by low elastic member |
| CN201390925Y (en) * | 2009-04-08 | 2010-01-27 | 中铁二院工程集团有限责任公司 | Transition section subgrade structure of high speed railway bridges |
| CN101691724A (en) * | 2009-09-17 | 2010-04-07 | 西南交通大学 | Liquefied soil foundation quake-proof road-bridge transition section structure of ballastless track of high-speed railway |
Non-Patent Citations (3)
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| 《中国优秀硕士论文全文数据库（工程科技Ⅱ辑）》 20100415 张协崇 客运专线涵-涵过渡段动力特性试验研究及仿真分析 第2.2.2节、3.5.4.2节、3.8节，图2-2 1-6 , 第4期 2 * |
| 《铁道建筑》 20080430 夏润禾，徐向叶 铁路客运专线涵洞与路基过渡段级配碎石填筑施工技术 56-58，82 1-6 , 第4期 2 * |
| 《高速铁路设计规范（试行）》 20100131 中华人民共和国铁道部 高速铁路设计规范（试行） 第6.3.2节、第6.6节，图6.6.2-1，6.6.2-3 1-6 , 1 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425086A (en) * | 2011-09-16 | 2012-04-25 | 中铁第四勘察设计院集团有限公司 | Cement graded crushed rock filling method for foundation of transition section of high-speed passenger special line railway |
| CN106836034A (en) * | 2017-03-09 | 2017-06-13 | 山西省交通科学研究院 | A kind of high roadbed slab culvert flexibility off-load system and construction method |
| CN106836034B (en) * | 2017-03-09 | 2023-04-28 | 山西省交通科学研究院 | High-fill cover plate culvert flexible load shedding system and construction method |
| CN110258367A (en) * | 2019-06-24 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | Transition structure is contained on a kind of culvert and road |
| CN113914162A (en) * | 2021-09-17 | 2022-01-11 | 山东高速工程建设集团有限公司 | Rapid construction method for partial filling of widened roadbed of highway |
| CN113914162B (en) * | 2021-09-17 | 2023-02-28 | 山东高速工程建设集团有限公司 | Rapid construction method for partial filling of widened roadbed of highway |
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Open date: 20110216 |