CN113201986A - Roadbed spliced wide portal type retaining wall structure and construction method - Google Patents
Roadbed spliced wide portal type retaining wall structure and construction method Download PDFInfo
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- CN113201986A CN113201986A CN202110372066.3A CN202110372066A CN113201986A CN 113201986 A CN113201986 A CN 113201986A CN 202110372066 A CN202110372066 A CN 202110372066A CN 113201986 A CN113201986 A CN 113201986A
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- roadbed
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- 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
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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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
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
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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
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a roadbed widening portal retaining wall structure and a construction method, wherein the roadbed widening portal retaining wall structure comprises a supporting layer, wherein a soft foundation is arranged on the supporting layer, cement stirring piles are arranged in the soft foundation, an original roadbed is arranged on the soft foundation, the top of the original roadbed is an original roadbed, the side face of the original roadbed is a slope, a step-shaped platform is arranged on the slope, and two rows of cement fly ash gravel piles are arranged at corresponding positions and serve as foundation piles; the reinforced concrete frame is characterized by also comprising a door opening type reinforced concrete frame, wherein the two bottoms of the door opening type reinforced concrete frame are respectively supported on the cement fly ash gravel piles; light foam concrete is filled between the left side of the door opening type reinforced concrete frame and the stepped platform on the original embankment, and a spliced wide pavement is arranged at the top of the door opening type reinforced concrete frame and is in butt joint with the original pavement. The differential settlement of the spliced wide roadbed and the old roadbed can be effectively reduced, the stability of the roadbed is improved, the problem of stable foundation of the guardrail is solved, the soft foundation treatment and the land acquisition cost are saved, the construction progress is accelerated on the premise of protecting land resources and environment, and the construction method has good economic and technical benefits.
Description
Technical Field
The invention relates to a roadbed widening structure and a construction method, in particular to a roadbed widening portal retaining wall structure and a construction method, which can expand the application range of roadbed widening, improve the strength and construction speed of a widening roadbed, and are particularly suitable for soft foundation section road widening projects with difficult land acquisition and rare filling.
Background
With the development of economy and the sharp increase of traffic volume, the existing highway needs to be widened and modified, and the modification scheme mainly adopts width splicing on two sides from the comprehensive aspects of economy, resources and the like. For the width splicing of the soft soil subgrade, if improper treatment can bring great harm to the engineering, the disease types such as uneven settlement, subgrade instability and the like at the width splicing position are mainly adopted. Under the new environmental protection and land policy, the existing roadbed widening technology has the problems of difficult land acquisition, rare filling, poor stability of excavation steps, high soft foundation treatment cost, long construction period, high safety pressure and the like, and greatly restricts the construction quality and efficiency of roadbed widening engineering.
Therefore, aiming at the defects existing in the existing roadbed widening construction process, the invention of the roadbed widening structure and the construction method with high construction efficiency and wide application range is urgently needed.
Disclosure of Invention
The invention aims to provide a safe, environment-friendly and economic roadbed widening structure and a construction method. The structure can not only effectively improve the stability of the wide spliced roadbed and control the uneven settlement between the new roadbed and the old roadbed, but also effectively solve the problem of outstanding splicing width such as land acquisition, filling, guardrail foundation stability and the like, and expand the application range of the wide spliced roadbed.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a roadbed wide-spliced portal retaining wall structure mainly comprises the following steps:
1) original roadbed improvement: the supporting layer is provided with a soft foundation, a cement stirring pile is arranged in the soft foundation, the bottom of the cement stirring pile is inserted into the supporting layer, the soft foundation is provided with an original roadbed, the top of the original roadbed is an original pavement, and the side face of the original roadbed is a slope;
according to design drawings, a step-shaped platform is arranged on the slope surface, a drainage cushion layer is arranged along the width direction of the step, and a drainage sand bag is arranged in the height direction;
2) construction preparation: prefabricating a corresponding number of door-opening type reinforced concrete frames with design cross slopes on the tops according to a design drawing, wherein only longitudinal splicing tenons are prefabricated on the door-opening type reinforced concrete frame members at the starting points of the spliced wide roads, and only longitudinal splicing grooves are prefabricated on the door-opening type reinforced concrete frame members at the end points of the spliced wide roads;
3) according to a design drawing, cement fly ash gravel piles are arranged in the width direction of the stepped platform, the bottoms of the cement fly ash gravel piles are inserted into the holding force layer, cement fly ash gravel piles are also arranged in the soft foundation layer on one side of the wide spliced roadbed, the bottoms of the cement fly ash gravel piles are inserted into the holding force layer, and the cement fly ash gravel piles are of a structure with a wide top and a narrow bottom;
4) after the cement fly ash gravel pile on the right side is formed into a pile, a mattress cushion layer is arranged on the cement fly ash gravel pile on the left side, and after the cement fly ash gravel pile on the left side is formed into a pile, the top of the cement fly ash gravel pile is arranged on the lower surface of the drainage cushion layer; selecting a door opening type reinforced concrete frame according to the splicing height of the roadbed, wherein the two bottoms of the door opening type reinforced concrete frame are respectively supported on a drainage cushion layer and a mattress cushion layer on the upper part of the cement fly ash gravel pile, and the rapid construction is carried out along the direction of a route by utilizing the combination of longitudinal splicing tenons and longitudinal splicing grooves of the door opening type reinforced concrete frame, and one channel is arranged within 15m of a settlement joint;
5) filling light foam concrete between the left side of the door opening type reinforced concrete frame and the original embankment, and arranging one path within 15m of a settlement joint;
6) after the light foam concrete is filled and maintained, the wide spliced road surface is constructed and butted with the original road surface.
The further technology of the invention is as follows:
preferably, the left side height of the door opening type reinforced concrete frame is fixed, and the right side height is adjusted between 2.5m and 8m in a grading manner by adjusting the embedding depth of the mattress layer by 0.5 m.
Preferably, a guardrail upright post groove is formed in the top of the right side of the door opening type reinforced concrete frame, and a guardrail upright post is embedded in the groove; cast-in-place when meeting the culvert in the splicing process.
Preferably, a closed hook is arranged on the left side of the door opening type reinforced concrete frame and connected with a steel wire mesh, and the steel wire mesh is laid to the step-shaped platform and locked by soil nails;
preferably, the density of the light foam concrete on the upper part of the steel wire mesh is greater than that of the light foam concrete on the lower part of the steel wire mesh.
The invention has the beneficial effects that:
the roadbed widening structure forms a widening roadbed with light weight, rigid-flexible transition and high strength in a widening road section, and has the advantages of simple structure and definite stress. The method can effectively reduce differential settlement between the spliced wide roadbed and the old roadbed, improve the stability of the roadbed, solve the problem of stable foundation of the guardrail, save soft foundation treatment and land acquisition cost, accelerate the construction progress on the premise of protecting land resources and environment, and has good economic and technical benefits.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a cross-sectional view of a roadbed-spliced wide-portal retaining wall structure;
FIG. 2 is a schematic view of a roadbed-spliced wide-portal retaining wall structural member
In the figure: 1. a support layer; 2. a soft foundation; 3. stirring the piles with cement; 4. an original roadbed; 5. the original pavement; 6. a drainage sandbag; 7. soil nailing; 8. steel wire mesh; 9. lightweight foam concrete; 10. splicing a wide pavement; 11. a guardrail; 12. closing the hook; 13. a drainage cushion layer; 14. an old road embankment side slope line; 15. slope plants; 16. a door opening type reinforced concrete frame; 17. a mattress layer; 18. a cement fly ash gravel pile; 19. longitudinally splicing the grooves; 20. longitudinally splicing the tenons; 21. guardrail stand recess.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
It should be noted that the words "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings.
As shown in fig. 1-2, in embodiment 1, the present invention provides a roadbed-spliced wide-doorway retaining wall structure, which includes a supporting layer 1, a soft foundation 2 is provided on the supporting layer 1, a cement mixing pile 3 is provided in the soft foundation 2, the bottom of the cement mixing pile 3 is inserted into the supporting layer 1, an original roadbed 4 is provided on the soft foundation 2, the top of the original roadbed 4 is an original road surface 5, the side surface of the original roadbed 4 is a slope surface (an old road embankment side slope line 14), slope plants 15 are planted on the old road embankment side slope line 14, a step-shaped platform is provided on the slope surface, the platform width is 1.5m, then the width and height are controlled from bottom to top to be 80cm, and the step-shaped retaining wall structure is excavated into a step-shaped step shape, a drainage cushion layer 13 is provided along the width direction of the step, and a drainage sand bag 6 is provided along the height direction;
cement fly ash gravel piles 18 are arranged in the width direction of the stepped platform, the bottoms of the cement fly ash gravel piles 18 are inserted into the bearing layer 1, cement fly ash gravel piles 18 are also arranged in the soft foundation 2 layer on one side of the wide spliced roadbed, and the bottoms of the cement fly ash gravel piles 18 are inserted into the bearing layer 1; the cement fly ash gravel pile 18 is of a structure with a wide upper part and a narrow lower part.
The system also comprises a door opening type reinforced concrete frame 16, wherein two bottoms of the door opening type reinforced concrete frame 16 are respectively supported on the drainage cushion layer 13 and the mattress cushion layer 17;
and after the cement fly ash gravel pile 18 at the bottom of the right side of the door opening type reinforced concrete frame 16 is formed into a pile, a mattress layer 17 with the thickness of 0.2m is arranged on the pile. The left wall body of the door opening type reinforced concrete frame 16 is fixed in height, a cross slope is arranged at the top according to the design requirement, and the height of the right wall body is adjusted by adjusting the embedding depth of the mattress layer 17 to be 2.5-8 m at the height difference of 0.5 m.
Light foam concrete 9 is filled between the left side of the door opening type reinforced concrete frame 16 and the stepped platform on the original embankment, and a widening pavement 10 is arranged at the top of the door opening type reinforced concrete frame 16 and is in butt joint with the original pavement 5.
And a guardrail upright post groove 21 is formed in the top of the right side of the door opening type reinforced concrete frame 16, and an upright post 11 of the guardrail is embedded in the guardrail upright post groove 21.
The left side of the door opening type reinforced concrete frame 16 is provided with a closed hook 12, the closed hook 12 is connected with a steel wire mesh 8, and the steel wire mesh 8 is paved to a step-shaped platform and locked through soil nails 7.
The density of the light foam concrete 9 on the upper part of the steel wire mesh 8 is greater than that of the light foam concrete 9 on the lower part of the steel wire mesh 8.
The door opening type reinforced concrete frame 16 is prefabricated with longitudinal splicing tenons 20 and longitudinal splicing grooves 19, the longitudinal splicing tenons 20 are combined with the longitudinal splicing grooves 19 through the door opening type reinforced concrete frame 16, and rapid construction is conducted along the route direction.
1) construction preparation: and (4) according to a design drawing, finishing the slope surface of the old embankment and then excavating a stepped platform, wherein the width of the platform is 1.5 m. Then, the width and the height are controlled from bottom to top to be 80cm, the step is excavated in a grading way, a drainage cushion layer 13 is arranged along the width direction of the step, and a drainage sandbag 6 is arranged in the height direction; according to a design drawing, prefabricating a corresponding number of door opening type reinforced concrete frames 16 with design cross slopes on the tops, wherein only longitudinal splicing tenons 20 are prefabricated for door opening type retaining wall structural components at the starting points of the spliced wide roads, only longitudinal splicing grooves 19 are prefabricated for door opening type retaining wall structural components at the end points of the spliced wide roads, the left side height of the door opening type retaining wall structure is fixed, and the right side height is adjusted between 2.5m and 8m in a grading manner of 0.5m by adjusting the embedding depth of a mattress layer 17;
2) according to a design drawing, two rows of cement fly ash gravel piles 18 with wide upper parts and narrow lower parts are arranged at corresponding positions to serve as foundations of the door opening type retaining wall structure;
3) after the cement fly ash gravel pile 18 is formed into a pile, a mattress layer 17 with certain thickness and width is arranged on the pile, and the thickness is 0.2 m;
4) according to the splicing height of the roadbed, selecting a door opening type retaining wall structure, after the retaining wall structure is placed at a corresponding position, combining a longitudinal splicing tenon 20 and a longitudinal splicing groove 19 of the door opening type retaining wall structure, performing rapid construction along the route direction, arranging one way within a settlement joint 15m, embedding a guardrail 11 upright in a guardrail upright groove 21 reserved in a door opening type retaining wall structure component, and performing cast-in-place when meeting a culvert in the splicing process;
5) filling light foam concrete 9 between the left side of the door-opening retaining wall structure and an old embankment, arranging one line within 15m of a settlement joint, laying a steel wire mesh 8 at a proper position, fixing the left side of the steel wire mesh 8 on a step by using soil nails 7, connecting the right side of the steel wire mesh with a closed hook 12 on the door-opening retaining wall structure, filling the light foam concrete 9 according to a layer of 80cm, wherein the density of the light foam concrete 9 at the upper part of the steel wire mesh 8 is greater than that of the lower part of the steel wire mesh 8;
6) and filling and curing the light foam concrete 9, and building and splicing the wide pavement 10.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a wide portal formula retaining wall structure is pieced together to road bed which characterized in that: the construction method mainly comprises the following steps:
1) original roadbed improvement: the supporting layer is provided with a soft foundation, a cement stirring pile is arranged in the soft foundation, the bottom of the cement stirring pile is inserted into the supporting layer, the soft foundation is provided with an original roadbed, the top of the original roadbed is an original pavement, and the side face of the original roadbed is a slope;
according to design drawings, a step-shaped platform is arranged on the slope surface, a drainage cushion layer is arranged along the width direction of the step, and a drainage sand bag is arranged in the height direction;
2) construction preparation: prefabricating a corresponding number of door-opening type reinforced concrete frames with design cross slopes on the tops according to a design drawing, wherein only longitudinal splicing tenons are prefabricated on the door-opening type reinforced concrete frame members at the starting points of the spliced wide roads, only longitudinal splicing grooves are prefabricated on the door-opening type reinforced concrete frame members at the end points of the spliced wide roads,
3) according to a design drawing, cement fly ash gravel piles are arranged in the width direction of the stepped platform, the bottoms of the cement fly ash gravel piles are inserted into the holding layer, cement fly ash gravel piles are also arranged in the soft foundation layer on one side of the wide spliced roadbed, and the bottoms of the cement fly ash gravel piles are inserted into the holding layer; the cement fly ash gravel pile is used as a foundation pile and adopts a structure with a wide upper part and a narrow lower part;
4) after the cement fly ash gravel pile on the right side is formed into a pile, a mattress cushion layer is arranged on the cement fly ash gravel pile on the left side, and after the cement fly ash gravel pile on the left side is formed into a pile, the top of the cement fly ash gravel pile is arranged on the lower surface of the drainage cushion layer; selecting a door opening type reinforced concrete frame according to a design elevation, wherein the two bottoms of the door opening type reinforced concrete frame are respectively supported on a drainage cushion layer and a mattress cushion layer on the upper part of the cement fly ash gravel pile, and quick construction is carried out along the direction of a route by utilizing the combination of longitudinal splicing tenons and longitudinal splicing grooves of the door opening type reinforced concrete frame, and one channel is arranged within 15m of a settlement joint;
5) filling light foam concrete between the left side of the door opening type reinforced concrete frame and the original embankment, and arranging one path within 15m of a settlement joint;
6) after the light foam concrete is filled and maintained, the wide spliced road surface is constructed and butted with the original road surface.
2. The roadbed-spliced wide-portal retaining wall structure as claimed in claim 1, wherein: the left side height of the door opening type reinforced concrete frame is fixed, and the right side height is adjusted between 2.5 m-8 m in stages by adjusting the embedding depth of the mattress layer at 0.5 m.
3. The roadbed-spliced wide-portal retaining wall structure as claimed in claim 1, wherein: a guardrail upright post groove is formed in the top of the right side of the door opening type reinforced concrete frame, and a guardrail upright post is embedded in the guardrail upright post groove; cast-in-place when meeting the culvert in the splicing process.
4. The roadbed-spliced wide-portal retaining wall structure as claimed in claim 1, wherein: the left side of the door opening type reinforced concrete frame is provided with a closed hook, the closed hook is connected with a steel wire mesh, and the steel wire mesh is paved to a step-shaped platform and is locked through soil nails.
5. The roadbed-spliced wide-portal retaining wall structure as claimed in claim 4, wherein: the density of the light foam concrete on the upper part of the steel wire mesh is greater than that of the light foam concrete on the lower part of the steel wire mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110372066.3A CN113201986B (en) | 2021-04-07 | 2021-04-07 | Roadbed spliced wide portal retaining wall structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110372066.3A CN113201986B (en) | 2021-04-07 | 2021-04-07 | Roadbed spliced wide portal retaining wall structure and construction method |
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| Publication Number | Publication Date |
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| CN113201986A true CN113201986A (en) | 2021-08-03 |
| CN113201986B CN113201986B (en) | 2022-12-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482600A (en) * | 2022-01-17 | 2022-05-13 | 中铁工程设计咨询集团有限公司 | Single-channel stress compensation type high-speed rail station widening structure and construction method thereof |
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| CN203383119U (en) * | 2013-07-05 | 2014-01-08 | 杭州华水市政工程有限公司 | Novel widening structure of highway embankment |
| CN104278608A (en) * | 2013-07-05 | 2015-01-14 | 杭州华水市政工程有限公司 | Novel highway embankment widened structure and construction method |
| CN205223744U (en) * | 2015-12-15 | 2016-05-11 | 中铁二院工程集团有限责任公司 | Structure is widened to high -speed railway embankment |
| CN105937196A (en) * | 2016-05-24 | 2016-09-14 | 安徽省交通建设有限责任公司 | Subgrade pile-plank type widening structure and construction method thereof |
| CN106120501A (en) * | 2016-08-10 | 2016-11-16 | 浙江大学城市学院 | Existing barricade section roadbed is spelled width and is increased structure and construction method |
| CN205934629U (en) * | 2016-08-10 | 2017-02-08 | 浙江大学城市学院 | Wide structure of increasing is pieced together to existing barricade section road bed |
| CN110983891A (en) * | 2019-12-25 | 2020-04-10 | 长沙理工大学 | Highway reconstruction and expansion assembly type roadbed structure and construction method thereof |
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2021
- 2021-04-07 CN CN202110372066.3A patent/CN113201986B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203383119U (en) * | 2013-07-05 | 2014-01-08 | 杭州华水市政工程有限公司 | Novel widening structure of highway embankment |
| CN104278608A (en) * | 2013-07-05 | 2015-01-14 | 杭州华水市政工程有限公司 | Novel highway embankment widened structure and construction method |
| CN205223744U (en) * | 2015-12-15 | 2016-05-11 | 中铁二院工程集团有限责任公司 | Structure is widened to high -speed railway embankment |
| CN105937196A (en) * | 2016-05-24 | 2016-09-14 | 安徽省交通建设有限责任公司 | Subgrade pile-plank type widening structure and construction method thereof |
| CN106120501A (en) * | 2016-08-10 | 2016-11-16 | 浙江大学城市学院 | Existing barricade section roadbed is spelled width and is increased structure and construction method |
| CN205934629U (en) * | 2016-08-10 | 2017-02-08 | 浙江大学城市学院 | Wide structure of increasing is pieced together to existing barricade section road bed |
| CN110983891A (en) * | 2019-12-25 | 2020-04-10 | 长沙理工大学 | Highway reconstruction and expansion assembly type roadbed structure and construction method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482600A (en) * | 2022-01-17 | 2022-05-13 | 中铁工程设计咨询集团有限公司 | Single-channel stress compensation type high-speed rail station widening structure and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN113201986B (en) | 2022-12-02 |
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