CN105113350A - Pier abutment roadbed structure and construction method - Google Patents
Pier abutment roadbed structure and construction method Download PDFInfo
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- CN105113350A CN105113350A CN201510534882.4A CN201510534882A CN105113350A CN 105113350 A CN105113350 A CN 105113350A CN 201510534882 A CN201510534882 A CN 201510534882A CN 105113350 A CN105113350 A CN 105113350A
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- stabilized macadam
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Abstract
The invention discloses a pier abutment roadbed structure. The pier abutment roadbed structure comprises an abutment body poured on a bearing platform. A steel plate pile perpendicular to the abutment body is arranged between the abutment body and a roadbed soil body. The roadbed soil body comprises a road surface structural layer, cement rubble layers and a cement concrete layer. According to a construction method, a hole is downwards dug so that the steel plate pile can be vertically inserted in the hole, and the steel plate pile is arranged in the abutment body or/and the bearing platform. The construction method further comprises the steps that the roadbed soil body is laid, firstly mortar mixing and grinding are carried out on an original ground, then the cement concrete layer and one or more cement rubble layers are sequentially laid and repeatedly ground, and finally the road surface structural layer is laid. By means of steel plate pile protection, structural layers and materials different from those of a traditional roadbed soil body are combined, the adverse effect on the stability of a pier abutment due to repeated grinding in the actual construction process is avoided, and the roadbed soil body can be rapidly and safely constructed. The method also has the beneficial effects of being easy to construct and operate, high in efficiency and the like.
Description
Technical field
The invention belongs to field of foundation treatment, relate to a kind of bridge pier platform road structure, be specifically close to the road structure that bridge pier platform is convenient to rapid construction, and construction method.
Background technology
The supporting construction of bridge is abutment and bridge pier.Abutment is the supporting construction of bridge two ends end of the bridge, is the tie point of high-ways and bridges.Bridge pier generally refers to the intermediate support structure of multiple span bridge more, and abutment and bridge pier are all made up of platform (pier) cap, platform (pier) body and base station.Bridge pier produces except vertical force, horizontal force and moment of flexure except bearing superstructure, also bears wind-force and contingent geological process.Abutment is arranged on bridge two ends, and except supporting bridge span structure, it is again the structure being connected two sides wiring embankment; Should native shore protection be kept off, can banket and banket the additional earth lateral pressure that upper vehicular load produces by the pedestal back of the body again.Therefore, Bridge Pier not only self should have enough intensity, rigidity and stability, and certain requirement is also all proposed to the frictional resistance etc. between the supporting capacity of ground, settling amount, groundsill and foundation, avoid producing the level of harm integral bridge structure, vertical displacement and corner displacement under above-mentioned load action.
The Bridge Pier of prior art and the structure of roadbed junction as follows: comprise platform cap, abutment body, concrete bearing platform, abutment body is connected with subgrade soil away from the one side in river course, subgrade soil has built rigid pavement, and the end face on road surface, the platform crown face of abutment are substantially concordant with bridge floor three.
The Bridge Pier of prior art and the construction method of roadbed junction structure as follows: first digging out for the accommodating hole of Bridge Pier, then the meaning builds cushion cap, abutment body, the platform cap of bridge pier platform, then by the ends rest of bridge plate at abutment body end face, again by the heatable adobe sleeping platform earthen backfill between abutment and subgrade soil and compacting, subgrade soil is connected, finally concreting road surface in subgrade soil with bridge pier platform.
The subgrade soil that existing highway bridge pier is combined with roadbed generally all adopts rendzinas, need rendzinas is elaborated several times and repeatedly rolls, in practice of construction process, repeatedly roll the impact of bridge pier platform larger, especially the section of bridge pier platform is close to, easily cause Bridge Pier and roadbed to produce difference in height, thus affect construction quality, delay construction speed.Therefore, a kind ofly rapid construction and avoiding can to damage the Bridge Pier of bridge pier and roadbed integrated structure and construction method become problem demanding prompt solution in work progress.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the object of this invention is to provide a kind of bridge pier platform road structure and construction method thereof, solve the problems such as construction quality is unstable, construction speed is delayed.For realizing aforementioned invention object, the technical solution used in the present invention comprises:
A kind of bridge pier platform road structure, comprise the abutment body body be cast on cushion cap, between described abutment body body and subgrade soil, be provided with the steel sheet pile vertical with abutment body body, wherein, described subgrade soil comprises road surface structare layer, cement stabilized macadam layer, cement concrete layer.
Further, described cement stabilized macadam layer is multi-layer compound structure to road structure of the present invention, at least comprises the first cement stabilized macadam layer and the second cement stabilized macadam layer.
Further, the structure of described subgrade soil is road surface structare layer, the first cement stabilized macadam layer, the second cement stabilized macadam layer, cement concrete layer to road structure of the present invention according to the order of sequence.
Road structure of the present invention further, is also provided with soil nail wall between described subgrade soil and described road surface structare layer, and described soil nail wall forms by soil nailing with for the steel mesh reinforcement of fixing soil nailing.
Further, described steel sheet pile is to the distance >=200cm of described abutment body body axis for road structure of the present invention.
Further, the ballast grain sizes of described cement stabilized macadam layer is within the scope of 20 ± 5cm for road structure of the present invention.
Further, described road surface structare layer comprises surface layer, basic unit and bed course to road structure of the present invention.
The technical solution used in the present invention also comprises:
A construction method for bridge pier platform road structure, comprises the steps:
S1, digs out the hole of building for cushion cap, and in hole, bottom pour mold builds cushion cap, then on cushion cap, build abutment body body
S2, excavates the hole of vertically inserting for steel sheet pile downwards, steel sheet pile is placed in abutment body body or/and in cushion cap from abutment body body upper end, then with the hole that soil is filled between abutment body body and steel sheet pile, abutment body body and subgrade soil are closed up;
S3, the roadbed paving soil body, first mixes ash at original ground and rolls, and then lays one deck cement concrete layer, on cement concrete layer, then lays one or more layers cement stabilized macadam layer and repeatedly roll, finally spreading road surface structare layer.
In step S3, lay and after having rolled cement stabilized macadam layer, include the step of construction soil nail wall, first laying one deck steel mesh reinforcement, reserved lap length and on steel mesh reinforcement sprayed mortar, then squeeze into soil nailing.
In step S2, the distance >=200cm of steel sheet pile and abutment body body axis.
By such scheme; the present invention at least has the following advantages: the present invention adopts steel sheet pile to protect; by combining the deck different from the Traditional foundations soil body and material; avoid repeatedly rolling in practice of construction process bridge pier platform stability adverse influence, be conducive to quick, safe subgrade soil and construct.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of manual, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of bridge pier platform road structure of the present invention;
Fig. 2 is the structural representation of another embodiment of bridge pier platform road structure of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, carry out clear, complete description to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments, be not used for limiting the scope of the invention.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, the embodiment of bridge pier platform road structure of the present invention, comprise the abutment body body 1 be cast on cushion cap 2, the steel sheet pile 3 vertical with abutment body body 1 is provided with between abutment body body 1 and subgrade soil 4, wherein, subgrade soil 4 comprises road surface structare layer 41, cement stabilized macadam layer, cement concrete layer 44.Employing steel sheet pile is protected, and by combining the deck inadequate with the Traditional foundations soil body and material, avoiding repeatedly rolling in practice of construction process bridge pier platform stability adverse influence, being conducive to quick, safe subgrade soil and constructing.
See Fig. 2, another embodiment of bridge pier platform road structure of the present invention, comprise the abutment body body 1 be cast on cushion cap 2 equally, the steel sheet pile 3 vertical with abutment body body 1 is provided with between abutment body body 1 and subgrade soil 4, wherein, subgrade soil 4 comprises road surface structare layer 41, cement stabilized macadam layer, cement concrete layer 44.In addition, be also provided with soil nail wall 45 between subgrade soil 4 and road surface structare layer 41, soil nail wall 45 forms by soil nailing 46 with for the steel mesh reinforcement 47 of fixing soil nailing 46.
Based on above-mentioned two embodiments, particularly, cement stabilized macadam layer is multi-layer compound structure in the present invention, at least comprises the first cement stabilized macadam layer 42 and the second cement stabilized macadam layer 43.Preferably, the structure of subgrade soil 4 is road surface structare layer 41, first cement stabilized macadam layer 42, second cement stabilized macadam layer 43, cement concrete layer 44 according to the order of sequence, the structure of certain subgrade soil 4 includes but not limited to aforesaid way, such as, also the structure of subgrade soil 4 can be set to according to the order of sequence six laminar structure of road surface structare layer 41, two-layer first cement stabilized macadam layer 42, two-layer second cement stabilized macadam layer 43, cement concrete layer 44.Wherein, the distance >=200cm of steel sheet pile 3 to abutment body body 1 axis, the ballast grain sizes of cement stabilized macadam layer is within the scope of 20 ± 5cm.Preferably, road surface structare layer 41 comprises surface layer, basic unit and bed course.Steel sheet pile 3 of the present invention is parallel to abutment body body 1 and arranges, namely in work progress, steel sheet pile 3 vertically inserts in abutment body body 1 cushion cap 2, to the restriction of steel sheet pile 3 position, ensure that steel sheet pile 3 vertically inserts the overall structure not destroying abutment body body 1 or base station in abutment body body 1 or cushion cap 2 process.
During bridge pier platform road structure Specific construction of the present invention, comprise the steps:
S1, digs out the hole of building for cushion cap 2, and in hole, bottom pour mold builds cushion cap 2, then builds abutment body body 1 on cushion cap 2.
S2, excavates the hole of vertically inserting for steel sheet pile 3 downwards, steel sheet pile 3 is placed in abutment body body 1 or/and in cushion cap 2 from abutment body body 1 upper end, then with the soil hole of filling between abutment body body 1 and steel sheet pile 3, abutment body body 1 and subgrade soil 4 are closed up.In step s 2, the distance >=200cm of preferably steel sheet pile 3 and abutment body body 1 axis.Steel sheet pile 3 vertically inserts in abutment body body 1 cushion cap 2, and when excavating the hole in the hole of vertically inserting for steel sheet pile 3, angle vertically downward tries not deviation to occur, to ensure the globality of the structure of abutment body body 1 or base station.
S3, the roadbed paving soil body 4, first mixes ash at original ground and rolls, and then lays one deck cement concrete layer 44, on cement concrete layer 44, then lays one or more layers cement stabilized macadam layer and repeatedly roll, finally spreading road surface structare layer 41.In this step S3, lay and after having rolled cement stabilized macadam layer, include the step of construction soil nail wall 45, first laying one deck steel mesh reinforcement 47, reserved lap length and on steel mesh reinforcement 47 sprayed mortar, then squeeze into soil nailing 46.Preferably, the ballast grain sizes of cement stabilized macadam layer is within the scope of 20 ± 5cm, and road surface structare layer 41 comprises surface layer, basic unit and bed course.Due to the deck that above-mentioned subgrade soil 4 is laid, when laying compared with Traditional foundations laying method, rolling layer greatly reduces, and by ballast grain sizes restriction within the specific limits, rubble contained by cement stabilized macadam layer is tamped rapidly, the same rolling layer reducing work progress.
Therefore, the present invention adopts steel sheet pile to protect, and by combining the deck different from the Traditional foundations soil body and material, avoiding repeatedly rolling in practice of construction process bridge pier platform stability adverse influence, being conducive to quick, safe subgrade soil and constructing.The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes formed, and all drops within protection scope of the present invention.
Claims (10)
1. a bridge pier platform road structure, comprise the abutment body body (1) be cast on cushion cap (2), it is characterized in that: between described abutment body body (1) and subgrade soil (4), be provided with the steel sheet pile (3) vertical with abutment body body (1), wherein, described subgrade soil (4) comprises road surface structare layer (41), cement stabilized macadam layer, cement concrete layer (44).
2. bridge pier platform road structure according to claim 1, is characterized in that: described cement stabilized macadam layer is multi-layer compound structure, at least comprises the first cement stabilized macadam layer (42) and the second cement stabilized macadam layer (43).
3. bridge pier platform road structure according to claim 2, is characterized in that: the structure of described subgrade soil (4) is road surface structare layer (41), the first cement stabilized macadam layer (42), the second cement stabilized macadam layer (43), cement concrete layer (44) according to the order of sequence.
4. bridge pier platform road structure according to claim 1, it is characterized in that: be also provided with soil nail wall (45) between described subgrade soil (4) and described road surface structare layer (41), described soil nail wall (45) forms by soil nailing (46) with for the steel mesh reinforcement (47) of fixing soil nailing (46).
5. bridge pier platform road structure according to claim 1, is characterized in that: described steel sheet pile (3) is to the distance >=200cm of described abutment body body (1) axis.
6. bridge pier platform road structure according to claim 1, is characterized in that: the ballast grain sizes of described cement stabilized macadam layer is within the scope of 20 ± 5cm.
7. bridge pier platform road structure according to claim 1, is characterized in that: described road surface structare layer (41) comprises surface layer, basic unit and bed course.
8. a construction method for bridge pier platform road structure, is characterized in that comprising the steps:
S1, digs out the hole of building for cushion cap (2), and in hole, bottom pour mold builds cushion cap (2), then builds abutment body body (1) on cushion cap (2);
S2, the hole of vertically inserting for steel sheet pile (3) is excavated downwards from abutment body body (1) upper end, steel sheet pile (3) is placed in abutment body body (1) or/and in cushion cap (2), then with the soil hole of filling between abutment body body (1) and steel sheet pile (3), abutment body body (1) and subgrade soil (4) is closed up;
S3, the roadbed paving soil body (4), first mix ash at original ground to roll, then one deck cement concrete layer (44) is laid, then also repeatedly roll at upper one or more layers cement stabilized macadam layer of laying of cement concrete layer (44), finally spread road surface structare layer (41).
9. the construction method of bridge pier platform road structure according to claim 1, it is characterized in that: in step S3, to lay and after having rolled cement stabilized macadam layer, include the step of construction soil nail wall (45), first lay one deck steel mesh reinforcement (47), reserved lap length also at the upper sprayed mortar of steel mesh reinforcement (47), then squeezes into soil nailing (46).
10. the construction method of bridge pier platform road structure according to claim 1, is characterized in that: in step S2, the distance >=200cm of steel sheet pile (3) and abutment body body (1) axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510534882.4A CN105113350A (en) | 2015-08-27 | 2015-08-27 | Pier abutment roadbed structure and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510534882.4A CN105113350A (en) | 2015-08-27 | 2015-08-27 | Pier abutment roadbed structure and construction method |
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| CN105113350A true CN105113350A (en) | 2015-12-02 |
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| CN201510534882.4A Pending CN105113350A (en) | 2015-08-27 | 2015-08-27 | Pier abutment roadbed structure and construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274921A (en) * | 2014-06-13 | 2016-01-27 | 中交一公局第五工程有限公司 | Automotive proving ground's high speed loop Mcconnell curve roadbed moulding method |
| CN106638656A (en) * | 2016-10-10 | 2017-05-10 | 中铁大桥勘测设计院集团有限公司 | Isolation plate used for road construction and road construction method of isolation plate |
| CN110004784A (en) * | 2019-04-22 | 2019-07-12 | 张建伟 | A kind of road structure close to highway bridge pier |
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| JP2003239276A (en) * | 2003-01-23 | 2003-08-27 | Dia Consultant:Kk | Construction method for road |
| CN201850505U (en) * | 2010-11-18 | 2011-06-01 | 中交第一公路勘察设计研究院有限公司 | Rigid-flexible transition structure capable of preventing bumping at bridge-head |
| CN102535263A (en) * | 2012-02-14 | 2012-07-04 | 中铁十九局集团有限公司 | Roadbed having pile-net combination structure and construction method thereof |
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| CN204401444U (en) * | 2014-12-30 | 2015-06-17 | 上海浦东建筑设计研究院有限公司 | A kind of high embankment filled soil end of the bridge anti-settling structure |
| CN204940031U (en) * | 2015-08-27 | 2016-01-06 | 苏州同尚工程设计咨询有限公司 | A kind ofly be close to the road structure that bridge pier platform is convenient to rapid construction |
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- 2015-08-27 CN CN201510534882.4A patent/CN105113350A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003239276A (en) * | 2003-01-23 | 2003-08-27 | Dia Consultant:Kk | Construction method for road |
| CN201850505U (en) * | 2010-11-18 | 2011-06-01 | 中交第一公路勘察设计研究院有限公司 | Rigid-flexible transition structure capable of preventing bumping at bridge-head |
| CN102535263A (en) * | 2012-02-14 | 2012-07-04 | 中铁十九局集团有限公司 | Roadbed having pile-net combination structure and construction method thereof |
| CN103114521A (en) * | 2013-01-21 | 2013-05-22 | 浙江大学宁波理工学院 | Structure and construction method of junction position of bridge abutment and roadbed |
| CN204401444U (en) * | 2014-12-30 | 2015-06-17 | 上海浦东建筑设计研究院有限公司 | A kind of high embankment filled soil end of the bridge anti-settling structure |
| CN204940031U (en) * | 2015-08-27 | 2016-01-06 | 苏州同尚工程设计咨询有限公司 | A kind ofly be close to the road structure that bridge pier platform is convenient to rapid construction |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274921A (en) * | 2014-06-13 | 2016-01-27 | 中交一公局第五工程有限公司 | Automotive proving ground's high speed loop Mcconnell curve roadbed moulding method |
| CN106638656A (en) * | 2016-10-10 | 2017-05-10 | 中铁大桥勘测设计院集团有限公司 | Isolation plate used for road construction and road construction method of isolation plate |
| CN110004784A (en) * | 2019-04-22 | 2019-07-12 | 张建伟 | A kind of road structure close to highway bridge pier |
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Application publication date: 20151202 |