CN113373750B - Steep slope high-fill-section roadbed structure and construction method thereof - Google Patents
Steep slope high-fill-section roadbed structure and construction method thereof Download PDFInfo
- Publication number
- CN113373750B CN113373750B CN202110743952.2A CN202110743952A CN113373750B CN 113373750 B CN113373750 B CN 113373750B CN 202110743952 A CN202110743952 A CN 202110743952A CN 113373750 B CN113373750 B CN 113373750B
- Authority
- CN
- China
- Prior art keywords
- frame
- foundation
- frame body
- roadbed
- steep slope
- 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.)
- Active
Links
Images
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
-
- 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
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- 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
- E02D17/18—Making embankments, e.g. dikes, dams
-
- 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
-
- 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
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/40—Miscellaneous comprising stabilising elements
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a steep slope high filling section roadbed structure and a construction method thereof, wherein the roadbed structure comprises at least one supporting structure along the direction of a line, a settlement joint is arranged between two longitudinally adjacent supporting structures, the supporting structure transversely comprises at least one frame structure along the line, a settlement joint is also arranged between two transversely adjacent frame structures, the frame structure comprises a foundation and a frame body above the foundation, the frame body comprises a top plate, a bottom plate and a web plate, the web plate is transversely arranged along the line, the frame body extends into the ground, the corresponding side surface of the frame body adjacent to a soil body is provided with a retaining plate, and the top surface of the supporting structure is used for arranging a road surface. The structure does not need to be set up on a slope, is flexible in arrangement and high in adaptability, can reduce damage to the surrounding environment, reduces the using amount of structural materials, lightens the weight, reduces the requirement on the bearing capacity of the foundation, further reduces the engineering quantity, improves the construction efficiency, saves the construction cost, and can utilize the existing topographic conditions to the maximum extent.
Description
Technical Field
The invention relates to the technical field of roadbed construction, in particular to a roadbed structure of a steep slope high filling section and a construction method thereof.
Background
At present, more and more infrastructures such as roads, railways and the like are built in a difficult mountain area in China, the infrastructures promote the development of local economy and civilian life, the distance between frontier and inland is shortened, the unbalanced development situation of the eastern and western areas in China is improved, the Sichuan-Tibet railway is one of important projects, the terrain and geological conditions along the railway are complex, particularly the high and steep side slope section (the height is more than 12m and the slope is more than 45 degrees), a conventional bridge scheme is adopted, the slope brushing treatment is required, and the side slope is also required to be reinforced when the soil condition is not good; for the beam part, if the frame transportation construction cannot be prefabricated and a support needs to be cast in place, the support is difficult to set up, high in risk and high in investment; by adopting the conventional roadbed scheme, the filling is higher, the engineering quantity is larger, and particularly in a high filling section (with the height larger than 12 m) of a high-intensity earthquake area, the slope is set slowly, so that more transverse land occupation is caused, and the damage to the surrounding environment is serious.
Disclosure of Invention
The invention aims to overcome the defects of high construction difficulty, large engineering quantity and large investment in a scheme of filling a roadbed by adopting a transverse multistage slope in a steep slope high filling section in the prior art, and provides a steep slope high filling section roadbed structure and a construction method thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a steep slope high section roadbed structure that bankets, contains at least one bearing structure along the same direction as the circuit direction, vertical adjacent two the settlement joint has between the bearing structure, bearing structure transversely contains at least one frame construction along the circuit, transversely adjacent two also be equipped with the settlement joint between the frame construction, the frame construction contains the frame body of basis and top, the frame body contains roof, bottom plate and web, the web transversely sets up along the circuit, the frame body stretches into ground, the frame body borders on the corresponding side of the soil body and is equipped with the earth-retaining plate, the bearing structure top surface is used for setting up the road surface.
The supporting structure is determined according to actual needs along the longitudinal length of the line, the transverse width of the frame structure along the line is set according to the terrain condition, the height of the frame body is set according to the height of a roadbed, and the depth of the frame body extending into the ground and the burial depth of the foundation are set according to the standard requirements.
The frame body is transversely provided with an opening facing the line, and the soil retaining plate is arranged on the adjacent soil body corresponding to the opening to prevent soil leakage.
Compared with the scheme of filling the roadbed in the prior art, the steep slope high-filling section roadbed structure provided by the invention has the advantages that the width of the supporting structure is determined according to the width of the road surface, slope placement is not required, the arrangement is flexible, the adaptability is strong, the transverse occupied area is effectively reduced, and the damage to the surrounding environment can be reduced, the supporting structure adopts a plurality of hollow frame structures, the characteristics of large bearing surface, good stability and light structure weight are effectively utilized, the using amount of structural materials is reduced, the weight is reduced, the requirement on the bearing capacity of a foundation is reduced, the engineering quantity is reduced, the construction efficiency is improved, the engineering cost is saved, and the existing topographic conditions can be utilized to the maximum extent.
Preferably, at least one of the frame bodies further comprises a middle partition plate, and the middle partition plate is located between the top plate and the bottom plate.
Through setting up the median septum is in order to reduce the layer height of the frame body promotes the stability of structure.
Further preferably, the frame body is a cast-in-place reinforced concrete structure, and the middle partition plate is a concrete member or a profile steel member.
Convenient for field installation.
Preferably, the side of the two sides of the supporting structure, which is higher than the soil body, is provided with a protective pile.
Further preferably, a filler is provided between the guard pile and the adjacent soil retaining plate.
Utilize the atress characteristics of pile foundation, face the combination forever, can avoid the influence below the roadbed when the frame construction side excavates during the construction, when the operation is used, can reduce the load effect of roadbed side to the frame construction on. Compressible filling soil is arranged between the soil retaining plate and the protective pile so as to adapt to no influence on the frame structure when the protective pile generates small deformation.
Preferably, the retaining plate has a filler between it and the adjacent foundation.
Preferably, the foundation is a pile group foundation.
A construction method of the steep slope high fill section roadbed structure comprises the steps that all the supporting structures are constructed in sequence from the higher end to the lower end along the direction along a line according to the heights of the supporting structures; all the frame structures are constructed in sequence from the higher side to the lower side of the support structure in the same row according to the height of the frame structures; before constructing the supporting structure of the current row, constructing the part, closest to the supporting structure of the current row, in the foundation of the supporting structure of the next row;
the construction of the support structure comprises the following steps:
a. constructing a portion of the foundation of a next said support structure that is closest to a current said frame structure;
b. constructing a part of the foundation of the next frame structure, which is closest to the current frame structure;
c. excavating a foundation pit of a frame body of the current frame structure, constructing a retaining plate, and filling a space between the retaining plate and the foundation of the next frame structure;
d. constructing the foundation of the current frame structure;
e. constructing the frame body of the current frame structure;
f. and repeating the steps a-e until the construction of the support structure of the current row is completed.
The construction method of the subgrade structure at the steep slope high filling section adopts the sectional layered construction, the foundation close to the upper side can be used as a stress foundation of the structure and also used as a protection project for excavating the lower side frame, meanwhile, the construction of large-volume concrete of a frame structure is avoided, the construction is carried out from the direction of deeper burying of the frame structure to a shallower direction, the disturbance of the frame structure close to the lower side to the frame structure close to the upper side can be avoided, the improvement of the construction quality of roadbed engineering is facilitated, the method can fully utilize the existing terrain conditions, the characteristics of roadbed engineering and frame engineering are coordinately exerted, the adoption of the traditional multi-level high-fill roadbed is avoided, the problems that the engineering quantity is large, the occupied area is large, the traditional bridge engineering is adopted, the investment is high, the excavation is greatly damaged to the bridge site environment and the like are avoided, and the safety and the stability of roadbed construction are favorably ensured.
The excavation can be performed by mechanical excavation or blasting excavation.
Preferably, if the side surface of the supporting structure is provided with the guard pile, the guard pile is constructed before the supporting structure is constructed.
If the middle partition plate exists, the frame body is constructed in a segmented mode from bottom to top in sequence.
In summary, compared with the prior art, the invention has the beneficial effects that:
1. compared with the scheme of filling the roadbed in the prior art, the steep slope high-filling section roadbed structure provided by the invention has the advantages that the width of the supporting structure is determined only according to the width of the road surface, slope placement is not required, the arrangement is flexible, the adaptability is strong, the transverse occupied area is effectively reduced, the damage to the surrounding environment can be reduced, the supporting structure adopts a plurality of hollow frame structures, the characteristics of large bearing surface, good self stability and light structure weight are effectively utilized, the structural material consumption is reduced, the weight is reduced, the requirement on the bearing capacity of a foundation is reduced, the engineering quantity is reduced, the construction efficiency is improved, the engineering cost is saved, and the existing topographic conditions can be utilized to the maximum extent.
2. The subgrade structure of the steep slope high-fill section is combined forever, the influence of excavation on the lower part of the subgrade by the frame structure side can be avoided during construction, and the load of the subgrade side can be reduced to the frame structure during operation and use. Compressible filling soil is arranged between the soil retaining plate and the protective pile so as to adapt to no influence on the frame when the protective pile generates small deformation.
3. The construction method of the subgrade structure at the steep slope high filling section adopts the sectional layered construction, the foundation close to the upper side can be used as a stress foundation of the structure and also used as a protection project for excavating the lower side frame, meanwhile, the construction of large-volume concrete of a frame structure is avoided, the construction is carried out from the direction of deeper burying of the frame structure to a shallower direction, the disturbance of the frame structure close to the lower side to the frame structure close to the upper side can be avoided, the improvement of the construction quality of roadbed engineering is facilitated, the method can fully utilize the existing terrain conditions, the characteristics of roadbed engineering and frame engineering are coordinately exerted, the adoption of the traditional multi-level high-fill roadbed is avoided, the problems that the engineering quantity is large, the occupied area is large, the traditional bridge engineering is adopted, the investment is high, the excavation is greatly damaged to the bridge site environment and the like are avoided, and the safety and the stability of roadbed construction are favorably ensured.
Description of the drawings:
fig. 1 is a structural layout diagram of a roadbed structure of a steep slope high fill section along the longitudinal direction of a road, according to the invention;
fig. 2 is a schematic structural diagram of the frame structure according to the present invention.
Fig. 3 is a structural section view of the support structure according to the present invention.
The labels in the figure are: 1-foundation, 2-frame body, 21-top plate, 22-bottom plate, 23-web plate, 24-middle partition plate and 3-protective pile.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1-3, the roadbed structure with a steep slope and a high soil filling section comprises at least one supporting structure along the direction along the line, wherein a settlement joint is arranged between two longitudinally adjacent supporting structures, the supporting structure comprises at least one frame structure along the line in the transverse direction, a settlement joint is also arranged between two transversely adjacent frame structures, the frame structure comprises a foundation 1 and a frame body 2 above the foundation 1, the frame body 2 comprises a top plate 21, a bottom plate 22 and a web plate 23, the web plate 23 is arranged along the line in the transverse direction, the frame body 2 extends into the ground, the frame body 2 is provided with a soil retaining plate on the corresponding side surface adjacent to the soil body, and the top surface of the supporting structure is used for arranging the road surface.
The supporting structure is confirmed according to actual need along the longitudinal length of the line, the frame structure is set according to the terrain condition along the transverse width of the line, the height of the frame body 2 is set according to the height of a roadbed, the depth of the frame body 2 extending into the ground and the buried depth of the foundation are set according to the standard requirement.
Specifically, as shown in fig. 1, this embodiment merely illustrates that three support structures are provided along the crossroad direction, each support structure has the same length, each support structure has two frame structures along the crossroad direction, the foundation 1 is a pile group foundation, and may of course be an enlarged foundation, etc., fig. 3 is a cross-sectional view of the leftmost support structure in fig. 1, and the two frame structures are not limited to have the same width, for example, in order to save the amount of work, the shorter frame structure may be made wider, that is, the right frame structure in fig. 3 is made wider; the width of the frame structure can be adjusted according to the line spacing, and the steel rail is prevented from being arranged along the settlement joint.
At least one frame body 2 still contains median septum 24, median septum 24 is located between roof 21 and the bottom plate 22, calculates the quantity of confirming median septum 24 according to the atress to guarantee frame body 2's stability, as in fig. 1, the rightmost side frame body 2 does not carry out the layering, middle frame 2 divide into two interlayers through one median septum 24, the leftmost side frame body 2 divide into three interlayers through two median septum 24. If the frame body 2 is a cast-in-place reinforced concrete structure, the middle partition plate 24 is a concrete member or a steel member, and the site construction is convenient.
And protective piles 3 are arranged on the higher side of the soil body in the two sides of the supporting structure, and fillers are arranged between the protective piles 3 and the adjacent soil retaining plates. Utilize the atress characteristics of pile foundation, face the combination forever, can avoid the influence below the roadbed when the frame construction side excavates during the construction, when the operation is used, can reduce the load effect of roadbed side to the frame construction on. Can set up the filling soil that can compress between fender guard plate and fender pile 3 to the adaptation does not have the influence to frame construction when fender pile 3 produces little deformation.
The corresponding side of the frame body 2 adjacent to the soil body is provided with a retaining plate, namely, in corresponding figure 3, the lower part of the frame structure on the right side in the figure is provided with the retaining plate on the side close to the guard pile 3, the interlayer at the lowest part of the frame structure on the left side in the figure is provided with the retaining plate on the side facing to the frame structure on the right side, and the space between the retaining plate and the pile of the frame structure on the right side needs to be filled.
By adopting the construction method of the roadbed structure at the steep slope high fill segment, all the supporting structures are constructed in sequence from the higher end to the lower end along the direction along the line according to the height of the supporting structures, namely from the left side to the right side in the figure 1; the supporting structures in the same row are constructed from the higher side to the lower side of the frame structure in sequence according to the height of the frame structure, namely from the left side to the right side in the figure 3; before constructing the supporting structure of the current row, constructing the part, closest to the supporting structure of the current row, of the foundation 1 of the supporting structure of the next row;
the construction of the support structure comprises the following steps:
a. constructing the part of the foundation 1 of the next support structure closest to the current frame structure;
b. constructing a part of the foundation 1 of the next frame structure, which is closest to the current frame structure;
c. excavating a foundation pit of a frame body 2 of the current frame structure, constructing a soil retaining plate, and filling a space between the soil retaining plate and the foundation 1 of the next frame structure;
d. constructing the foundation 1 of the current frame structure;
e. constructing the frame body 2 of the current frame structure;
f. and repeating the steps a-e until the construction of the support structure of the current row is completed.
Specifically, firstly, the existing terrain is leveled to the design requirement according to the elevation requirement. And then, if the protective pile 3 exists, firstly carrying out excavation construction on the protective pile 3. And after the strength of the protective pile 3 meets the requirement, excavating the frame structure. And constructing the corresponding protective piles 3 when the current supporting structure is constructed correspondingly.
During construction, if the support structure on the left side in fig. 1 is to be constructed, a part of the foundation 1 of the support structure located in the middle in fig. 1, which is closest to the current frame structure, is first constructed, that is, a row of piles (hereinafter referred to as first boundary piles) on the leftmost side of the frame structure in the middle in fig. 1, the first boundary piles are not only stressed pile foundations of the frame structure in the middle in fig. 1, but also protection excavated by the frame structure on the left side in fig. 1, and after the construction of the first boundary piles is completed and strength requirements are met, the support structure on the left side in fig. 1 is started to be constructed. For example, when the frame structure on the left side in fig. 3 is constructed, the first boundary piles of the frame structure on the left side of the middle support structure in fig. 1 are constructed, and when the frame structure on the right side in fig. 3 is constructed, the first boundary piles of the frame structure on the right side of the middle support structure in fig. 1 are constructed.
When the supporting structure is constructed in the same row:
the next frame structure is constructed firstly, that is, the part of the foundation 1 closest to the current frame structure in the frame structure, that is, the leftmost row of piles (hereinafter referred to as second boundary piles) in the right side frame structure in fig. 3, the second boundary piles are not only the stressed pile foundation of the right side frame structure in fig. 3, but also the protection excavated by the left side frame structure in fig. 3, and therefore, the left side frame in fig. 3 can be excavated after the second boundary piles are constructed and meet the strength requirement. Then, a foundation pit of the frame body 2 of the current frame structure is excavated, a retaining plate is constructed, and a space between the retaining plate and the second boundary pile is filled with a non-expansive material, such as compressible soil and polyethylene foam as a filler. The left side of the left side frame structure in fig. 3 may not be provided with a retaining plate.
For example, when the left support structure in fig. 1 is excavated to enlarge the foundation, the portion of the enlarged foundation of the middle support structure closest to the left support structure is also constructed first, and the same applies to the two frame structures in fig. 3.
Then constructing a pile foundation of the frame structure on the left side in the figure 3, then constructing the frame body 2, and adopting support cast-in-place construction, wherein the frame structure on the left side is provided with a plurality of interlayer, and the frame body 2 is constructed in sections from bottom to top in sequence;
after the construction of the frame structure on the left side in fig. 3 is completed, the frame structure on the right side is constructed, a foundation pit corresponding to the frame body 2 is excavated, then, other pile foundations except for the second boundary pile are constructed, and then, the corresponding frame body 2 is constructed.
After the construction of the left frame structure in fig. 1 is completed, the middle frame structure in fig. 1 is excavated, and the first boundary piles of the right frame structure in fig. 1 are constructed, and then the construction is performed according to the above steps. Of course, when the right side frame in fig. 1 is constructed, excavation can be performed directly.
The construction method of the subgrade structure at the steep slope high filling section adopts the sectional layered construction, the foundation close to the upper side can be used as a stress foundation of the structure and also used as a protection project for excavating the lower side frame, meanwhile, the construction of large-volume concrete of a frame structure is avoided, the construction is carried out from the direction of deeper burying of the frame structure to a shallower direction, the disturbance of the frame structure close to the lower side to the frame structure close to the upper side can be avoided, the improvement of the construction quality of roadbed engineering is facilitated, the method can fully utilize the existing terrain conditions, the characteristics of roadbed engineering and frame engineering are coordinately exerted, the adoption of the traditional multi-level high-fill roadbed is avoided, the problems that the engineering quantity is large, the occupied area is large, the traditional bridge engineering is adopted, the investment is high, the excavation is greatly damaged to the bridge site environment and the like are avoided, and the safety and the stability of roadbed construction are favorably ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A subgrade structure of a steep slope high-fill section is characterized by comprising at least one supporting structure along the direction along a line, a settlement joint is arranged between two longitudinally adjacent supporting structures, the supporting structure transversely comprises at least one frame structure along the line, a settlement joint is also arranged between two transversely adjacent frame structures, the frame structure comprises a foundation (1) and a frame body (2) above the foundation, the frame body (2) comprises a top plate (21), a bottom plate (22) and a web plate (23), the web (23) is arranged transversely along the line, the width of the frame structure in the transverse direction of the line is arranged according to the terrain, the height of the frame body (2) is set according to the height of the roadbed, the frame body (2) extends into the ground, and the corresponding side surface of the frame body (2) adjacent to the soil body is provided with a soil retaining plate, and the top surface of the supporting structure is used for arranging a road surface.
2. The steep slope high fill segment roadbed structure according to claim 1, characterized in that at least one of the frame bodies (2) further comprises a middle bulkhead (24), the middle bulkhead (24) being located between the top plate (21) and the bottom plate (22).
3. The steep slope high fill segment roadbed structure according to claim 2, characterized in that the frame body (2) is a cast-in-place reinforced concrete structure and the intermediate partition plate (24) is a concrete member or a steel member.
4. The steep slope high fill segment roadbed structure according to claim 1, wherein the supporting structure is provided with a fender pile (3) on the higher side of the soil body.
5. The steep slope high fill segment roadbed structure according to claim 4, characterized in that a filler is provided between the fender pile (3) and the adjacent soil guard plate.
6. The steep slope high fill section roadbed structure according to claim 1, characterized in that a filler is arranged between the soil retaining plate and the adjoining foundation (1).
7. The steep slope high fill section subgrade structure according to any one of claims 1-6, characterized in that said foundation (1) is a pile-grouped foundation.
8. A construction method of a roadbed structure of a steep slope high fill section according to any one of claims 1 to 7, wherein all the support structures are constructed in sequence from a higher end to a lower end in a down-line direction according to heights of the support structures; all the frame structures are constructed in sequence from the higher side to the lower side of the support structure in the same row according to the height of the frame structures; before constructing the supporting structure of the current row, constructing the part closest to the supporting structure of the current row in the foundation (1) of the supporting structure of the next row;
the construction of the support structure comprises the following steps:
a. constructing the part of the foundation (1) of the next support structure closest to the current frame structure;
b. constructing the part of the foundation (1) of the next frame structure, which is closest to the current frame structure;
c. excavating a foundation pit of a frame body (2) of the current frame structure, constructing a soil retaining plate, and filling a space between the soil retaining plate and the foundation (1) of the next frame structure;
d. constructing the foundation (1) of the current frame structure;
e. constructing the frame body (2) of the current frame structure;
f. and repeating the steps a-e until the construction of the support structure of the current row is completed.
9. Construction method according to claim 8, characterized in that if the support structure is provided with guard piles (3) on its sides, the guard piles (3) are constructed before the support structure is constructed.
10. The method according to claim 8, characterized in that the frame body (2) is constructed in sections from bottom to top in sequence if a middle partition (24) is present.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110743952.2A CN113373750B (en) | 2021-06-30 | 2021-06-30 | Steep slope high-fill-section roadbed structure and construction method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110743952.2A CN113373750B (en) | 2021-06-30 | 2021-06-30 | Steep slope high-fill-section roadbed structure and construction method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113373750A CN113373750A (en) | 2021-09-10 |
CN113373750B true CN113373750B (en) | 2022-05-24 |
Family
ID=77580446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110743952.2A Active CN113373750B (en) | 2021-06-30 | 2021-06-30 | Steep slope high-fill-section roadbed structure and construction method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113373750B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115075076B (en) * | 2022-07-20 | 2024-07-19 | 中交第二公路勘察设计研究院有限公司 | High-fill and low-soil composite roadbed structure and construction method |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009121114A (en) * | 2007-11-14 | 2009-06-04 | Ohbayashi Corp | Construction bearing structure, method of constructing underground construction, and method of replacing bearing of foundation load |
JP2010168844A (en) * | 2009-01-26 | 2010-08-05 | Daiwa-Cres Co Ltd | Road widening structure |
CN102787534A (en) * | 2012-09-02 | 2012-11-21 | 中铁二院工程集团有限责任公司 | Light frame-subgrade pile-board structure in karst areas |
CN204000469U (en) * | 2014-02-28 | 2014-12-10 | 中铁第四勘察设计院集团有限公司 | A kind of pile formula box road structure |
CN107858934A (en) * | 2017-12-13 | 2018-03-30 | 中铁二十三局集团有限公司 | The small spacing abutment constructing structure and its construction method of neighbouring running railway line |
CN111118968A (en) * | 2019-12-31 | 2020-05-08 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Railway road shoulder |
CN111218873A (en) * | 2020-03-04 | 2020-06-02 | 中铁二院工程集团有限责任公司 | Steep slope supporting stress type roadbed structure and construction method |
CN111705576A (en) * | 2020-07-01 | 2020-09-25 | 北京工业大学 | Steep slope high-filling roadbed structure adopting high-density EPS filler |
CN111778858A (en) * | 2020-06-30 | 2020-10-16 | 中铁二院工程集团有限责任公司 | Multi-line bridge pier foundation pit protection structure located on steep slope and construction method |
CN112281914A (en) * | 2020-10-16 | 2021-01-29 | 中铁第四勘察设计院集团有限公司 | Transition section structure for connecting underground tunnel entrance and exit with viaduct and construction method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100513705C (en) * | 2006-09-29 | 2009-07-15 | 中国科学院地质与地球物理研究所 | Underground Beam-Pile Frame Structure for Slope Reinforcement |
CN104018405B (en) * | 2014-06-04 | 2016-08-24 | 北京工业大学 | The double-deck road structure that a kind of " stake-anchor-framework " is compound |
CN109811776B (en) * | 2019-03-05 | 2021-02-02 | 吉林大学 | Assembled lattice frame roof beam |
CN110761127A (en) * | 2019-12-04 | 2020-02-07 | 中铁二院工程集团有限责任公司 | Rock foundation existing high-speed railway embankment force balance side width structure and construction method |
CN111058338A (en) * | 2019-12-25 | 2020-04-24 | 中国铁路设计集团有限公司 | Light roadbed structure of high-speed railway |
CN111852170A (en) * | 2020-08-25 | 2020-10-30 | 中机中联工程有限公司 | Frame-type road bed retaining structure |
CN112323544A (en) * | 2020-11-30 | 2021-02-05 | 中铁第四勘察设计院集团有限公司 | Box type roadbed structure |
-
2021
- 2021-06-30 CN CN202110743952.2A patent/CN113373750B/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009121114A (en) * | 2007-11-14 | 2009-06-04 | Ohbayashi Corp | Construction bearing structure, method of constructing underground construction, and method of replacing bearing of foundation load |
JP2010168844A (en) * | 2009-01-26 | 2010-08-05 | Daiwa-Cres Co Ltd | Road widening structure |
CN102787534A (en) * | 2012-09-02 | 2012-11-21 | 中铁二院工程集团有限责任公司 | Light frame-subgrade pile-board structure in karst areas |
CN204000469U (en) * | 2014-02-28 | 2014-12-10 | 中铁第四勘察设计院集团有限公司 | A kind of pile formula box road structure |
CN107858934A (en) * | 2017-12-13 | 2018-03-30 | 中铁二十三局集团有限公司 | The small spacing abutment constructing structure and its construction method of neighbouring running railway line |
CN111118968A (en) * | 2019-12-31 | 2020-05-08 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Railway road shoulder |
CN111218873A (en) * | 2020-03-04 | 2020-06-02 | 中铁二院工程集团有限责任公司 | Steep slope supporting stress type roadbed structure and construction method |
CN111778858A (en) * | 2020-06-30 | 2020-10-16 | 中铁二院工程集团有限责任公司 | Multi-line bridge pier foundation pit protection structure located on steep slope and construction method |
CN111705576A (en) * | 2020-07-01 | 2020-09-25 | 北京工业大学 | Steep slope high-filling roadbed structure adopting high-density EPS filler |
CN112281914A (en) * | 2020-10-16 | 2021-01-29 | 中铁第四勘察设计院集团有限公司 | Transition section structure for connecting underground tunnel entrance and exit with viaduct and construction method |
Also Published As
Publication number | Publication date |
---|---|
CN113373750A (en) | 2021-09-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102352590B (en) | Method for splicing highfill roadbed by adopting pile-sheet retaining wall | |
CN102359046A (en) | High fill subgrade connection method | |
CN110258586A (en) | Increase the structure and method of existing high roadbed tunnel backfill height | |
CN113373750B (en) | Steep slope high-fill-section roadbed structure and construction method thereof | |
CN104674645A (en) | Integral plate type small bridge and culvert combination applicable to soft soil foundations | |
CN215561591U (en) | High steep slope roadbed structure of gravity type retaining wall combined foam light soil | |
CN211080254U (en) | Structure for increasing backfill height of existing high-fill tunnel | |
CN110205982B (en) | Channel structure for improving flood control standard of existing river levee and construction method thereof | |
CN111705576A (en) | Steep slope high-filling roadbed structure adopting high-density EPS filler | |
CN207525567U (en) | A kind of pile plate composite structure suitable for Steep Slope Embankment | |
KR100948059B1 (en) | Constructing method for widening road using steel casing retaining wall | |
CN114351567B (en) | Road bridge connection structure and construction method | |
CN215406089U (en) | Bury frame underground structure supporting construction based on pier protection demand | |
CN105804101A (en) | Load-reducing retaining system capable of reducing stress of retaining structure, construction method and applications | |
CN114922200B (en) | Existing-newly-built combined retaining structure of wide road embankment and construction method | |
CN112049117B (en) | Earth-rock binary foundation pit supporting structure system | |
CN115506382A (en) | Construction method for pile plate wall of island building platform | |
CN113123356A (en) | Slope protection device for traffic engineering construction and laying method thereof | |
CN206219896U (en) | Medium-and low-speed maglev traffic engineering two-wire excavation location pile foundation joist type support rail girder construction | |
CN206157494U (en) | Moderate -low speed magnetic levitation traffic engineering single line excavation location supporting beam of pile foundation formula support rail girder construction | |
CN206127744U (en) | Moderate -low speed magnetic levitation single line excavation location supporting beam of pile foundation formula support rail roof beam transition section structure | |
CN114922017B (en) | Newly-built cantilever type retaining wall-existing stake board wall roadbed group wide integrated configuration | |
CN106283971B (en) | Medium-and low-speed maglev traffic engineering single line excavation location pile foundation joist type support rail girder construction | |
CN106283969B (en) | Medium-and low-speed maglev traffic engineering two-wire excavation location independence pier stud type support rail girder construction | |
CN206127743U (en) | Moderate -low speed magnetic levitation double -line excavation location supporting beam of pile foundation framing formula support rail roof beam transition section structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |