CN208266912U - A kind of roadbed section retaining wall - Google Patents

A kind of roadbed section retaining wall Download PDF

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Publication number
CN208266912U
CN208266912U CN201820510393.4U CN201820510393U CN208266912U CN 208266912 U CN208266912 U CN 208266912U CN 201820510393 U CN201820510393 U CN 201820510393U CN 208266912 U CN208266912 U CN 208266912U
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China
Prior art keywords
retaining
armstand
roadbed
attachment
road
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CN201820510393.4U
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Chinese (zh)
Inventor
陈磊
郭强
贾文镖
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Abstract

The utility model relates to a kind of roadbed section retaining walls, retaining wall is symmetrically disposed on the two sides of roadbed, retaining wall includes armstand and is located at the wall heel being connected below armstand and with armstand, is set between the retaining wall of roadbed two sides and is connected by attachment device, the both ends of attachment device are connected with armstand respectively;The top of attachment device is top course, and the lower section of attachment device is Roadbed Soil layer, attachment device and top course keeping parallelism.The retaining wall of roadbed two sides is connected as overall structure by armoured concrete slab, can balance the soil pressure of barricade two sides, enhances the overall stability of retaining wall, resistance to capsizing and sliding stability.

Description

A kind of roadbed section retaining wall
Technical field
The utility model relates to the technical field of the civil construction of road, specifically a kind of Novel road base segment earth-retaining Wall, the roadbed section retaining wall more particularly, to after abutment.
Background technique
Currently, cantilever retaining wall is a kind of common subgrade support retainer structure in road engineering, it is reinforced concrete structure, Since its simple structure, cross dimensions are smaller, foundation bearing force request is lower, thus overbridge, ramp bridge in municipal works It is widely used after beam bridge platform.The wall of cantilever retaining wall is by armstand (shingle nail), toe of wall plate and wall heel slab three parts group At wall stability relies primarily on the energy for banketing gravity to guarantee, generally in order to improve retaining wall Against Sliding Stability on wall heel slab Tenon can be arranged in power, bottom plate.The specific size of cantilever retaining wall is according to category of roads, roadbed filling height, geological condition, base The different situations such as bottom bearing capacity situation, grade of providing fortification against earthquakes, Roadbed Soil property are computed and determine, but structure grown form by Armstand, toe of wall plate and wall heel slab three parts composition do not change.
Surface road, the cantilever retaining wall of main road or ring road can be generally arranged in urban road overbridge, ring road two sides Toe of wall be generally embedded under surface road pavement structure.When the road for being provided with cantilever retaining wall carries out reconstruction or overhaul When, the surface road of two sides must be excavated, and width of roadway can be reduced, and seriously affect the traffic of two sides road;Below road When having pipeline, excavating influence pipeline, difficulty of construction and cost but will be greatly increased, construction period is lengthened, influences social benefit.
Therefore, the retaining wall setting structure of existing structure is excessively complicated, and occupied area is excessive, and it is complicated not adapt to modernization Under the conditions of construction and application, now be badly in need of want a kind of more simple, easy for construction retaining wall structure.
Summary of the invention
The purpose of this utility model is to provide a kind of improved roadbed section retaining walls, it can overcome earth-retaining in the prior art Difficulty big, at high cost some shortcomings when larger land occupation, excavation construction is arranged in wall.
To achieve the goals above, the technical solution of the utility model is: a kind of roadbed section retaining wall, it is characterised in that: The retaining wall is symmetrically disposed on the two sides of roadbed, and retaining wall includes armstand and is located at the wall being connected below armstand and with armstand Heel, be set between the retaining wall of roadbed two sides by attachment device be connected, the both ends of the attachment device respectively with armstand It is connected;The top of attachment device is top course, and the lower section of attachment device is Roadbed Soil layer, the attachment device and road surface Surface layer keeping parallelism;The attachment device is armored concrete connecting plate, is equipped in armstand for connecting the attachment device Retaining wall embedded bar.
Preferably, one layer of retaining wall embedded bar or two layers of upper and lower retaining wall pre-buried steel disposed in parallel are equipped in armstand One end of muscle, the reinforcing bar is fixed in armstand, and the other end extends outward armstand and mutually fixes with attachment device.
Further, the top course is directly layed in above armored concrete connecting plate.
Further, the top of armstand is equipped with anti-collision wall, and the inner side edge of anti-collision wall is flushed with the inner wall of armstand, anti-collision wall The lateral wall of outer side edges package armstand.
The height of the anti-collision wall is the 1/4-1/2 of armstand height.
Further, it is connected between armstand and wall heel by a slope, the folder between the slope and horizontal plane Angular region is 30-50 degree.
Compared with the existing technology, the technical solution of the utility model further includes many in addition to the improvement of overall technical architecture Improvement in terms of details, specifically, having the advantages that
1, the structure of improvement project described in the utility model, retaining wall is greatly simplified, and it is mixed to eliminate original reinforcing bar Solidifying soil toe of retaining wall and tenon, so that the structure division that retaining wall is embedded under surface road road surface when building and constructing obtains It simplifies, takes up little area, when the road for being equipped with retaining wall carries out reconstruction or overhaul, surface road excavation width is small, will not influence The traffic of two sides road brings convenience to construction;
2, the technical solution of the utility model guarantees the steady of retaining wall by the attachment device being arranged between armstand Qualitative, this stabilization is the balance and stability of bilateral, and this stablizing effect is far longer than to be guaranteed by banketing gravity in the prior art Stablizing effect, the dynamic equilibrium of bilateral, can slowly change with the load-bearing stress of surface road and service life and Stablize, there is no due to surface road pressure-bearing it is improper, the problem of causing the fracture of unilateral retaining wall, collapse, improve gear The stability and service life of cob wall;
Since the retaining wall of roadbed two sides is connected as overall structure by armoured concrete slab, barricade two sides can be balanced Soil pressure enhances the overall stability of retaining wall, resistance to capsizing and sliding stability;
3, the utility model enhances integrally-built stability, shortens in retaining walls heel length compared with conventional structure, from Abutment position to pick-up point, retaining walls heel reduce type convenient for using uniform length, facilitate the over-the-counter prefabricated scene of retaining wall into Row is assembled, more since retaining wall cancels toe of wall and tenon, shortens wall heel length, retaining wall weight is effectively mitigated, thus just Benefit construction transport and lifting installation, accelerate construction progress, and the duration shortens, and create advantageous item to advocate Civilization Worksite Part;
4, structure of the utility model due to simplifying retaining wall reduces construction so that construction period greatly shortens Difficulty, more due to being provided with attachment device between the retaining wall of two sides, the influence to pipeline and underground structure is excavated in reduction, Underground utilities can be protected well, extend the service life of underground utilities.
Detailed description of the invention
Fig. 1 is the one-sided configuration schematic diagram that the utility model retaining wall uses armoured concrete slab.
Fig. 2 is the implementation structural schematic diagram that the utility model retaining wall uses armoured concrete slab.
Appended drawing reference:
1 armstand, the heel of 2 walls, 3 retaining wall embedded bars, 4 armoured concrete slabs, 6 top courses, 7 anti-collision walls.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.
The utility model provides a kind of roadbed section Novel retaining wall for after abutment, referring specifically to Fig. 1, the gear Cob wall is symmetrically disposed on the two sides of roadbed, and retaining wall includes armstand and is located at the wall heel being connected below armstand and with armstand, is arranged It is connected between the retaining wall of roadbed two sides by attachment device, the both ends of the attachment device are connected with armstand respectively, lead to Crossing attachment device makes the retaining wall of roadbed two sides become an entirety, can balance the soil pressure of barricade two sides, enhance gear The overall stability of cob wall, resistance to capsizing and sliding stability;The top of attachment device is top course, under attachment device Side is Roadbed Soil layer, the attachment device and top course keeping parallelism.The attachment device is armored concrete company Fishplate bar, the interior retaining wall embedded bar being equipped with for connecting the attachment device of armstand.Armored concrete connecting plate can be used as road The base of face structure uses, and the arrangement of reinforcement setting of armored concrete connecting plate meets " highway reinforced concrete and prestressed concrete Bridges and culverts design specification " (JTGD62-2004) and " highway cement concrete pavement design specification " (JTGD40-2011) correlation Technical requirements.
The retaining wall of this roadbed makes the retaining wall of two sides become a stable entirety by armored concrete connecting plate Structure, not only shake-proof ability is reinforced, but also construction procedure simplifies, and reduces difficulty of construction, reduces construction procedure, strengthens road Relevance between the retaining wall of base two sides becomes a more secured, stable overall structure.Simultaneously because cancelling setting Toe of wall and tenon take up an area so that the structure division that retaining wall is embedded under surface road road surface when building and constructing is simplified Small, when the road for being equipped with retaining wall carries out reconstruction or overhaul, surface road excavation width is small, will not influence two sides road Traffic brings convenience to construction.
In one embodiment, whole as one by attachment device for the retaining wall of the two sides roadbed section after abutment Body is specifically equipped with the retaining wall embedded bar for installing and connecting apparatus in the corresponding position of the armstand of roadbed two sides, this In the retaining wall embedded bar be arranged two layers, and be arranged in parallel above and below, one end of the reinforcing bar is fixed in armstand, The other end extends outward armstand and mutually fixes with attachment device.It is described when attachment device is armored concrete connecting plate Top course is directly layed in above armored concrete connecting plate, and the base that armored concrete connecting plate can also serve as pavement structure makes With the armored concrete connecting plate is equipped with lateral connection reinforcing bar and longitudinal spacer bar, is connected by armored concrete Fishplate bar makes the retaining wall of two sides become a stable overall structure, and not only shake-proof ability is reinforced, while construction procedure simplifies.Tool Body not only reduces difficulty of construction referring to Fig. 1, Fig. 2 in this way, reduces construction procedure, while strengthening roadbed two sides retaining wall Between relevance so that become a more secured, stable overall structure.
In specific implementation, prefabrication is can be used in earth-retaining wall construction method, and the bracket casting that conventional ripening can also be used is applied Work method that is, after the completion of foundation construction, sets up bracket, formwork erection, wire-ties, and is poured concrete, completes the production of retaining wall.Earth-retaining Armored concrete connecting plate among wall and the welding of the embedded bar in retaining wall are linked to be entirety, and Roadbed Soil is to predetermined in barricade Highly and after being sufficiently compacted, cast in situs.
In the technical solution, since lacing wire enhances integrally-built stability, relatively conventional knot in retaining walls heel length Structure shortens, and from abutment position to pick-up point, uniform length is can be used in retaining walls heel, and the over-the-counter prefabricated scene of retaining wall is facilitated to carry out It is assembled.Since retaining wall cancels toe of wall and tenon, shorten wall heel length, retaining wall weight is effectively mitigated, to facilitate Construction transport and lifting installation, accelerate construction progress, and the duration shortens, and create advantageous condition to advocate Civilization Worksite.
In a specific embodiment, ring road improvement project is located at downtown urban land, traffic on certain urban elevated road Busy, underground present pipeline is numerous.Ring road is two-way two lane, and bridge deck width 8m, the maximum depth of fill is 2.4m after abutment, Landing section gradient incline is 5.2%, to pick-up point path length about 50m after abutment.Due to using Novel retaining wall, cancel toe of wall And armored concrete connecting plate is used, the cross dimensions of retaining wall is reduced, construction and excavation face is reduced, with not influencing status The traffic of face road avoids the influence to present pipeline, while saving space can lay municipal pipeline on the outside of road, and save The about construction time and investment, social assessment is good.Meanwhile the top of armstand is equipped with anti-collision wall, the inner side edge of anti-collision wall and vertical The inner wall of arm flushes, the lateral wall of the outer side edges of anti-collision wall package armstand, further strengthens the stability of retaining wall and resistance to compression, anti- Impact, the height of the anti-collision wall are the 1/4-1/2 of armstand height, preferably 1/3.Pass through a slope between armstand and wall heel It is connected, the angular range between the slope and horizontal plane is 30-50 degree, further enhances the monolithic stability of retaining wall Property, resistance to capsizing and sliding stability.
In another embodiment, in a specific embodiment, ring road improvement project is located on certain urban elevated road Downtown urban land, heavy traffic, underground present pipeline are numerous.Ring road is two-way two lane, bridge deck width 8m, after abutment most The big depth of fill is 2.4m, and landing section gradient incline is 5.2%, to pick-up point path length about 50m after abutment.Using novel gear Cob wall cancels toe of wall and tenon, and using armored concrete connecting plate, armored concrete connects plate thickness 20cm, arranges clad steel Muscle, two layers of bar spacing are 100mm, and 25@200 of reinforcing bar model HRB400 φ, connecting plate longitudinal structure reinforcing bar is HRB400 φ 16@200.Novel retaining wall reduces cross dimensions, reduces construction and excavation face, does not influence the traffic of status surface road, keeps away Exempted from the influence to present pipeline, while saving space on the outside of road to lay municipal pipeline, and saved the construction time with Investment, social assessment are good.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined Assert that the utility model specific implementation is confined to these above-mentioned explanations.For the common skill of the utility model technical field For art personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, all should It is considered as belonging to the protection scope of the utility model.

Claims (6)

1. a kind of roadbed section retaining wall, it is characterised in that: the retaining wall is symmetrically disposed on the two sides of roadbed, and retaining wall includes Armstand and the wall heel for being located at armstand lower section and being connected with armstand, are set between the retaining wall of roadbed two sides through attachment device phase Even, the both ends of the attachment device are connected with armstand respectively;
The top of attachment device is top course, and the lower section of attachment device is Roadbed Soil layer, the attachment device and road surface Surface layer keeping parallelism;
The attachment device is armored concrete connecting plate, is equipped in armstand pre- for connecting the retaining wall of the attachment device Bury reinforcing bar.
2. a kind of roadbed section retaining wall according to claim 1, it is characterised in that: it is pre-buried to be equipped with one layer of retaining wall in armstand Reinforcing bar or two layers of upper and lower retaining wall embedded bar disposed in parallel, one end of the reinforcing bar are fixed in armstand, and the other end is outside Extend armstand and is mutually fixed with attachment device.
3. a kind of roadbed section retaining wall according to claim 1, it is characterised in that: the top course is directly layed in Above armored concrete connecting plate, the armored concrete connecting plate is equipped with lateral connection reinforcing bar and longitudinal supporting steel Muscle.
4. a kind of roadbed section retaining wall according to claim 1, it is characterised in that: the top of armstand is equipped with anti-collision wall, prevents The inner side edge for hitting wall is flushed with the inner wall of armstand, the lateral wall of the outer side edges package armstand of anti-collision wall.
5. a kind of roadbed section retaining wall according to claim 4, it is characterised in that: the height of the anti-collision wall is that armstand is high The 1/4-1/2 of degree.
6. a kind of roadbed section retaining wall according to claim 1, it is characterised in that: pass through a slope between armstand and wall heel Face is connected, and the angular range between the slope and horizontal plane is 30-50 degree.
CN201820510393.4U 2018-04-11 2018-04-11 A kind of roadbed section retaining wall Active CN208266912U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820510393.4U CN208266912U (en) 2018-04-11 2018-04-11 A kind of roadbed section retaining wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820510393.4U CN208266912U (en) 2018-04-11 2018-04-11 A kind of roadbed section retaining wall

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112900485A (en) * 2021-01-25 2021-06-04 广东粤路勘察设计有限公司 Improved cantilever type retaining wall structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112900485A (en) * 2021-01-25 2021-06-04 广东粤路勘察设计有限公司 Improved cantilever type retaining wall structure
CN112900485B (en) * 2021-01-25 2022-02-18 广东粤路勘察设计有限公司 Improved cantilever type retaining wall structure

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