CN104452805A - Roadbed structure of underpass expressway adjacent to bridge pier - Google Patents
Roadbed structure of underpass expressway adjacent to bridge pier Download PDFInfo
- Publication number
- CN104452805A CN104452805A CN201410777828.8A CN201410777828A CN104452805A CN 104452805 A CN104452805 A CN 104452805A CN 201410777828 A CN201410777828 A CN 201410777828A CN 104452805 A CN104452805 A CN 104452805A
- Authority
- CN
- China
- Prior art keywords
- underpass
- anchor pile
- bridge pier
- bridge
- freeways
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
- E01B2/006—Deep foundation of tracks
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
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- 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
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Abstract
The invention provides a roadbed structure of an underpass expressway adjacent to a bridge pier. The roadbed structure comprises an expressway bridge pier arranged on a cut slope and a railway bed arranged on a cutting basement, a plurality of anchorage piles are longitudinally arranged along the edge of the cut slope at intervals, inter-pile walls are arranged between the adjacent anchorage piles, and grouting strengthening areas are arranged between the anchorage piles and the bridge pier of the expressway. By the reinforcing structure, safety of the expressway and the railway is effectively guaranteed.
Description
Technical field
The present invention relates to geotechnical engineering field, be specifically related to the road structure of a kind of underpass of freeways next-door neighbour Bridge Pier.
Background technology
Along with the large step of railway construction in China is advanced; the railway network is day by day flourishing; newly built railway often can walk abreast or intersect with existing speedway; particularly during railway underpass of freeways; then need to carry out special construction design, the smooth enforcement of newly built railway could be met, existing speedway is not had a negative impact simultaneously; adopt the railway excavation supporting scheme of reasonable science, railway, highway can be coordinated mutually and sustainable development.The mode situation of intersecting due to railway and highway is a lot, various, again all more complicated, does not have a kind of method can adapt to solve all situations, therefore, all needs to be solved by special construction design, or solved by special construction engineering method, technique.
Summary of the invention
For above-mentioned technical problem, the invention provides the road structure of a kind of underpass of freeways next-door neighbour Bridge Pier, by arranging ruggedized construction effective guarantee speedway and railway security.
The invention provides the road structure of a kind of underpass of freeways next-door neighbour Bridge Pier, comprise and be arranged at bridge on highway pier in cut slope and be arranged at the suprabasil railway bed of cutting, cut slope edge is longitudinally arranged at intervals with multiple anchor pile, be provided with wall between stake between adjacent anchor pile, between anchor pile and bridge on highway pier, be provided with grouting and reinforcing district.
Described anchor pile is arranged at the lateral sulcus edge of railway bed.Grouting and reinforcing district is arranged at bridge on highway pier edge.
The cantilever segment of described anchor pile is positioned on railway bed lateral sulcus absolute altitude, and the anchoring section of anchor pile is positioned under railway bed lateral sulcus absolute altitude.
Between described stake, wall is arranged between the cantilever segment of adjacent anchor pile, and the suspension section both sides of anchor pile are provided with bracket.
Described bottom, grouting and reinforcing district and railway bed lateral sulcus absolute altitude are positioned at same level line, and the lateral extent in grouting and reinforcing district is 3-8m.
The present invention carries out grouting and reinforcing under existing bridge on highway pier around pile foundation, grouting and reinforcing scope is that railway bed lateral sulcus absolute altitude is with upper part, by injecting treatment, the soil body compactness within the scope of Bridge Pier and intensity are increased all to some extent, when railway bed pile plate wall is constructed, avoid the impact on Existing Railway Bridges pier, ensure current highway and bridge safety.Railway bed is to wear existing speedway under cutting form, and cutting adopts pile plate wall supporting and protection structure near existing highway bridge pier side, successfully solves the problem of railway underpass of freeways narrow space.The present invention, by pile plate wall closing slope and pile peripheral earth grouting and reinforcing, defines the ruggedized construction of " solid after front ", has not only ensured existing expressway safety, can also ensure the unimpeded of railway.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention
Wherein, 1-bridge on highway pier, 2-grouting and reinforcing scope, 3-anchor pile, 4-lateral sulcus, 5-railway bed, wall between 6-stake, 7-cantilever segment, 8-anchoring section, 9-cut slope, the substrate of 10-cutting.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the present invention will be further described:
The invention provides the road structure of a kind of underpass of freeways next-door neighbour Bridge Pier 1, comprise be arranged at bridge on highway pier in cut slope 91 and be arranged in cutting substrate 10 railway bed 5, cut slope 9 edge is longitudinally arranged at intervals with multiple anchor pile 3, be provided with wall 6 between stake between adjacent anchor pile 3, between stake, wall 6 and anchor pile 3 match and form pile plate wall structure.Grouting and reinforcing district 2 is provided with between pile plate wall structure and bridge on highway pier 1, grouting and reinforcing district 2 is arranged at bridge on highway pier 1 edge, by injecting treatment, the soil body compactness in Bridge Pier 1 scope and intensity are increased all to some extent, when railway bed 5 pile plate wall is constructed, avoid the impact on Existing Railway Bridges pier 1, ensure current highway and bridge safety.As shown in Figure 1, railway bed 5 is arranged in cutting substrate 10, and railway bed 5 both sides are provided with the lateral sulcus 4 for draining.Described pile plate wall is arranged at lateral sulcus 4 edge of railway bed 5, without the need to arranging platform between described railway bed 5 and cut slope 9, successfully solves the problem of railway underpass of freeways narrow space.
The cantilever segment 7 of described anchor pile 3 is positioned on railway bed 5 lateral sulcus 4 absolute altitude, and the anchoring section 8 of anchor pile 3 is positioned under railway bed 5 lateral sulcus 4 absolute altitude.The pile foundation of bridge on highway pier 1 and the anchoring section 8 of anchor pile 3 are all arranged in the good ground of cut slope 9.Between described stake, wall 6 is arranged between the cantilever segment 7 of adjacent anchor pile 3, and the suspension section both sides of anchor pile 3 are provided with bracket.Anchoring section 8 and cantilever segment 7 ratio of anchor pile 3 are 2:1, and sufficient stability requirement is covered with in stake.The pile center spacing 4m of anchor pile 3, main body section size 2.5m × 2.5m, cantilever segment 7 front both sides of wall 6 wall between stake arrange 30cm × 40cm bracket, and anchor pile 3 pile body adopts C30 concrete, between stake, wall 6 adopts the baffle plate being of a size of 50cm × 25cm × 130cm, and adopts C30 Prefabricated reinforced concrete part.
Described bottom, grouting and reinforcing district 2 and railway bed 5 lateral sulcus 4 absolute altitude are positioned at same level line, and the lateral extent in grouting and reinforcing district 2 is 3-8m.In the present embodiment grouting and reinforcing district 2 scope be railway bed 5 lateral sulcus 4 absolute altitude with upper part, bridge on highway pier 1 to railway side 5 meters is longitudinally railway and highway cross street.The present invention is main pulping material with Portland cement and water glass, water glass regulates the initial setting time of injection slurry as additive, wherein water/binder ratio is 1 ~ 0.5:1, and cement grout and water glass liquid volume are than being 1:0.08 ~ 0.12, and concentration of slurry from thin to thick.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
The content be not described in detail in this manual belongs to the known prior art of professional and technical personnel in the field.
Claims (6)
1. the road structure of a underpass of freeways next-door neighbour Bridge Pier, it is characterized in that comprising the bridge on highway pier (1) be arranged in cut slope (9) and the railway bed (5) be arranged in cutting substrate (10), cut slope (9) edge is longitudinally arranged at intervals with multiple anchor pile (3), be provided with wall between stake (6) between adjacent anchor pile (3), between anchor pile (3) and bridge on highway pier (1), be provided with grouting and reinforcing district (2).
2. the road structure of underpass of freeways next-door neighbour Bridge Pier according to claim 1, is characterized in that anchor pile (3) is arranged at lateral sulcus (4) edge of railway bed (5).
3. the road structure of underpass of freeways next-door neighbour Bridge Pier according to claim 2, is characterized in that grouting and reinforcing district (2) is arranged at bridge on highway pier (1) edge.
4. the road structure of underpass of freeways next-door neighbour Bridge Pier according to claim 2, it is characterized in that the cantilever segment (7) of anchor pile (3) is positioned on railway bed (5) lateral sulcus (4) absolute altitude, the anchoring section (8) of anchor pile (3) is positioned under railway bed (5) lateral sulcus (4) absolute altitude.
5. the road structure of underpass of freeways next-door neighbour Bridge Pier according to claim 3, it is characterized in that between described stake, wall (6) is arranged between the cantilever segment (7) of adjacent anchor pile (3), suspension section (7) both sides of anchor pile (3) are provided with bracket.
6. the road structure of underpass of freeways next-door neighbour Bridge Pier according to claim 4, it is characterized in that lateral sulcus (4) absolute altitude of (2) bottom, grouting and reinforcing district and railway bed (5) is positioned at same level line, the lateral extent of grouting and reinforcing district (2) is 3-8m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777828.8A CN104452805A (en) | 2014-12-15 | 2014-12-15 | Roadbed structure of underpass expressway adjacent to bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777828.8A CN104452805A (en) | 2014-12-15 | 2014-12-15 | Roadbed structure of underpass expressway adjacent to bridge pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104452805A true CN104452805A (en) | 2015-03-25 |
Family
ID=52899505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410777828.8A Pending CN104452805A (en) | 2014-12-15 | 2014-12-15 | Roadbed structure of underpass expressway adjacent to bridge pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104452805A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155377A (en) * | 2015-09-10 | 2015-12-16 | 成都聚智工业设计有限公司 | Roadbed structure close to expressway pier |
| CN107761477A (en) * | 2017-09-18 | 2018-03-06 | 中都工程设计有限公司 | A kind of road structure close to bridge pier |
| CN108914718A (en) * | 2018-06-07 | 2018-11-30 | 中铁二院工程集团有限责任公司 | High-speed railway reinforced earth bulkhead roadbed contact net basic preformed hole construction and its construction method |
| CN113062173A (en) * | 2021-03-22 | 2021-07-02 | 武汉一冶建筑安装工程有限责任公司 | Construction method for joint of garden path underpass flat plate bridge and conical slope foundation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20110024476A (en) * | 2009-09-02 | 2011-03-09 | (주)컴퍼지트솔루션코리아 | Earth anchor, secant pile wall using composite shell pile and construction method thereof |
| CN103334451A (en) * | 2013-07-10 | 2013-10-02 | 中铁第四勘察设计院集团有限公司 | Underneath-passing channel formed between high-speed rail piers through secant pile walls and method thereof |
| CN204326098U (en) * | 2014-12-15 | 2015-05-13 | 中铁第四勘察设计院集团有限公司 | The road structure of underpass of freeways next-door neighbour Bridge Pier |
-
2014
- 2014-12-15 CN CN201410777828.8A patent/CN104452805A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110024476A (en) * | 2009-09-02 | 2011-03-09 | (주)컴퍼지트솔루션코리아 | Earth anchor, secant pile wall using composite shell pile and construction method thereof |
| CN103334451A (en) * | 2013-07-10 | 2013-10-02 | 中铁第四勘察设计院集团有限公司 | Underneath-passing channel formed between high-speed rail piers through secant pile walls and method thereof |
| CN204326098U (en) * | 2014-12-15 | 2015-05-13 | 中铁第四勘察设计院集团有限公司 | The road structure of underpass of freeways next-door neighbour Bridge Pier |
Non-Patent Citations (2)
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| 刘晓鹏: "某铁路下穿衡炎高速公路大桥桩板墙设计", 《中国水运》 * |
| 牛高等: "新普路与成雅高速公路交叉工程方案比选", 《公路交通技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155377A (en) * | 2015-09-10 | 2015-12-16 | 成都聚智工业设计有限公司 | Roadbed structure close to expressway pier |
| CN107761477A (en) * | 2017-09-18 | 2018-03-06 | 中都工程设计有限公司 | A kind of road structure close to bridge pier |
| CN108914718A (en) * | 2018-06-07 | 2018-11-30 | 中铁二院工程集团有限责任公司 | High-speed railway reinforced earth bulkhead roadbed contact net basic preformed hole construction and its construction method |
| CN108914718B (en) * | 2018-06-07 | 2023-11-17 | 中铁二院工程集团有限责任公司 | Construction method for foundation preformed hole structure of high-speed railway reinforced earth retaining wall subgrade contact net |
| CN113062173A (en) * | 2021-03-22 | 2021-07-02 | 武汉一冶建筑安装工程有限责任公司 | Construction method for joint of garden path underpass flat plate bridge and conical slope foundation |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |