CN203960700U - The closed road structure of stake holder U-lag - Google Patents
The closed road structure of stake holder U-lag Download PDFInfo
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- CN203960700U CN203960700U CN201420264501.6U CN201420264501U CN203960700U CN 203960700 U CN203960700 U CN 203960700U CN 201420264501 U CN201420264501 U CN 201420264501U CN 203960700 U CN203960700 U CN 203960700U
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Abstract
The utility model belongs to traffic route Roadbed Construction Technology field, is specifically related to the closed road structure of a kind of stake holder U-lag.It comprises the U-shaped groove being integrally formed by sidewall and base plate, in described U-shaped groove, is provided with packed layer, and described base plate bottom is consolidated with many bored piles, and described base plate bottom surface is equipped with plain concrete cushion layer.The utility model adopts steel concrete U-lag and reinforced concrete bored pile to connect into overall structure, effectively by U-lag, groove, banket and train load by being passed to deep low compressibility good ground with the fixed pile foundation of U-lag base plate, there is the features such as the rigidity of structure is large, bearing capacity is high, good integrity, strong adaptability.
Description
Technical field
The utility model belongs to traffic route Roadbed Construction Technology field, be specifically related to the closed road structure of a kind of stake holder U-lag, be applicable to the elevated projects such as Xia Chuan highway, railway, track traffic and pass through the newly-built of the narrow traffic aisle in town building compact district or change, extend the limited subgrade construction of railway, track traffic.
Background technology
Along with the fast development of China's economy, city size, the continuous expansion of scope and improving constantly of transport need, overhead grade separation, subway, the various traffic forms such as light rail continue to bring out, speed and the building density of urban construction are increasing, newly built railway, railway traffic engineering will inevitably produce plane or graded crossing with above-mentioned engineering, the reorganization and expansion of existing railway and railway traffic engineering must be subject to closing on the restriction of construction of structures, the space of building passage all can be subject to larger restriction, the plane in part location or headroom may be very limited and can only pass through with limited roadbed form.
Limited roadbed is various informative, according to concrete limited situation, often adopts the retaining structure forms such as U-lag, cantilever wall, counterfort wall and reinforced earth wall; Existing conventional design scheme is directly retaining structure to be positioned on ground, under the newly-increased subsidiary stress such as selfweight stress and the traffic loading effect of banketing of limited roadbed, the compressive strain of ground inevitably can cause the sinking, distortion, the cracking that are close to existing construction of structures, even may jeopardize the safety of existing construction of structures.
Summary of the invention
The purpose of this utility model is exactly the deficiency existing in order to solve above-mentioned background technology, provides that a kind of rigidity of structure is large, sedimentation is little, the closed road structure of stake holder U-lag on the existing construction of structures being close to without impact.
The technical solution adopted in the utility model is: the closed road structure of a kind of stake holder U-lag, comprise the U-shaped groove being integrally formed by sidewall and base plate, in described U-shaped groove, be provided with packed layer, described base plate bottom is consolidated with many bored piles, and described base plate bottom surface is equipped with plain concrete cushion layer.
Further, the ratio of slope of the inside wall of described sidewall is 1:0.1-1:0.3, and the lateral wall of described sidewall is perpendicular to base plate.
Further, described Pile footpath is 0.8-1.5m.
Further, described packed layer is AB group filler, graded broken stone or plain concrete.
The utility model adopts steel concrete U-lag and deposited reinforced concrete pile to connect into overall structure, by in U-lag, groove, banket and train load by being passed to deep low compressibility good ground with the fixed pile foundation of U-lag base plate, there is the features such as the rigidity of structure is large, bearing capacity is high, good integrity, strong adaptability.This road structure can be adjusted U-lag physical dimension and sidewall height according to the shape and the gauge that are close to works, both can be used for excavation location, also can be used for embankment location, can be widely used in the elevated projects such as lower rail wear, highway, track traffic and through newly-built, the reorganization and expansion railway of the intensive narrow traffic aisle of town building or the limited subgrade construction of track traffic, can avoid large-scale and remove and reduce the taking of the rare land resources in city, there is good promotion prospect and distinct economic and social benefit.
Brief description of the drawings
Fig. 1 is partial structurtes schematic diagram of the present utility model.
Fig. 2 is the fixed schematic diagram of the utility model base plate and bored pile.
Fig. 3 is the structural representation that the utility model has been constructed.
Wherein: 1-sidewall; 2-base plate; 3-bored pile; 4-concrete cushion; 5-packed layer; 6-contact net column; 7-cable channel; 8-gutter; 9-existing structure thing.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form and limit the utility model.
As Figure 1-3, the utility model comprises the U-shaped groove being integrally formed by sidewall 1 and base plate 2, sidewall 1 can design by the cantilever of cantilever retaining wall, wherein the ratio of slope of the inside wall 1.1 of sidewall 1 is 1:0.1-1:0.3, the lateral wall 1.2 of sidewall 1 is perpendicular to base plate, and sidewall 1 and base plate 2 need meet the requirement in structural stability, intensity, crack.The sidewall of U-lag plays a gear closing slope effect to roadbed side slope, guarantees that the subsidiary stress of newly-increased engineering does not produce sedimentation and distortion to the existing construction of structures ground being close to.In U-shaped groove, be provided with packed layer 5, packed layer 5 is AB group filler, graded broken stone or plain concrete; Base plate 2 bottom surfaces are equipped with plain concrete cushion layer 4.
Because bored pile is little to ground disturbance, pile is easy, construction technology is ripe, construction equipment height is adjustable, therefore base plate 2 bottom pile foundations adopt bored pile 3, base plate 2 can design by stake plated construction with bored pile 3, and the cross section internal force of sidewall bottom is used as to external load and is put on the two ends of plate; Bored pile pile foundation and base plate adopt and are rigidly connected, stake top is stretched into and in base plate, is no less than 10cm, the main muscle of pile foundation and spiral stirrup stretch into length in base plate should meet " Code for design of concrete structures " requirement (GB50010), and fixed schematic diagram as shown in Figure 2; 3 footpaths of bored pile can adopt 0.8～1.5m, need meet the requirement of malformation, durability and subgrade settlement control.
When construction, as shown in Figure 3, first outside apart from the certain safe distance of existing structure thing 9, be close to the conditions such as the distribution, shape, structure types, base form, gauge of construction of structures according to periphery, determine the physical dimension of U-lag, at U-lag structure sole arrangement 2-3 row hole drilling castinplace pile 3, adopt Churn drill or revolve to dig and bore by designing requirement construction drill castinplace pile, after pore-forming, pile foundation steel bar cage is hung to hole, and the main muscle length that stretches into base plate 2 is reserved, perfusion meets the concrete of design grade, forms bored pile 3.
Bored pile 3 concrete reach after design strength, remove laitance, dig out pile crown, guarantee that pile foundation and pile foundation reinforcing bar stretch into the length of base plate, Pile top reinforcing bar is anchored in U-lag structure base slab, realize being rigidly connected of pile foundation and U-lag structure base slab.
Lay C15 plain concrete cushion layer 4 in U-lag base plate 2 bottom surfaces, and according to design size, base plate 2 and sidewall 1 are carried out to reinforcing bar welding and colligation, reserved spilled water hole formwork erection after-pouring concrete, every 10m-20m interval arranges build joint, with the thermal stresses that prevents that structure generation is excessive.
Base plate 2 and sidewall 1 concrete reach stripping after design strength, packed layer 5 is set in U-lag, fill, compacting AB group filler, graded broken stone or plain concrete be to design elevation, then in U-lag outside construction contact net column 6, cable channel 7 and ditch 8, complete the work progress of the closed road structure of whole stake holder U-lag.
The content not being described in detail in this manual belongs to the known prior art of professional and technical personnel in the field.
Claims (4)
1. the closed road structure of stake holder U-lag, it is characterized in that: comprise the U-shaped groove being integrally formed by sidewall (1) and base plate (2), in described U-shaped groove, be provided with packed layer (5), described base plate (2) bottom is consolidated with many bored piles (3), and described base plate (2) bottom surface is equipped with plain concrete cushion layer (4).
2. the closed road structure of stake holder U-lag according to claim 1, it is characterized in that: the ratio of slope of the inside wall (1.1) of described sidewall is 1:0.1-1:0.3, the lateral wall (1.2) of described sidewall is perpendicular to base plate (2).
3. the closed road structure of stake holder U-lag according to claim 1, is characterized in that: described bored pile (3) stake footpath is 0.8-1.5m.
4. the closed road structure of stake holder U-lag according to claim 1, is characterized in that: described packed layer (5) is AB group filler, graded broken stone or plain concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420264501.6U CN203960700U (en) | 2014-05-22 | 2014-05-22 | The closed road structure of stake holder U-lag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420264501.6U CN203960700U (en) | 2014-05-22 | 2014-05-22 | The closed road structure of stake holder U-lag |
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| Publication Number | Publication Date |
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| CN203960700U true CN203960700U (en) | 2014-11-26 |
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| CN201420264501.6U Active CN203960700U (en) | 2014-05-22 | 2014-05-22 | The closed road structure of stake holder U-lag |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107034744A (en) * | 2017-04-10 | 2017-08-11 | 中铁第四勘察设计院集团有限公司 | Concurrent operation high-speed railway separate type circuit road structure and its construction method |
| CN108222060A (en) * | 2018-02-12 | 2018-06-29 | 中铁二院工程集团有限责任公司 | High-speed railway, highway pile foundation joist buttress type pallet subgrade support retainer structure |
| CN108660886A (en) * | 2018-06-27 | 2018-10-16 | 贵州智华建设工程有限责任公司 | It is a kind of to build in the high embankment structure on slip mass |
| CN108755284A (en) * | 2018-06-15 | 2018-11-06 | 中铁西安勘察设计研究院有限责任公司 | Reduce the railway bed structure of subgrade settlement deformation to lacing wire material U-type groove |
| CN109235153A (en) * | 2018-09-17 | 2019-01-18 | 中铁二院工程集团有限责任公司 | The anti-counterfort U-type groove structure of railway high-filled embankment |
| CN109440545A (en) * | 2018-11-30 | 2019-03-08 | 中铁第四勘察设计院集团有限公司 | The road structure and construction method of operation high-speed railway are worn under a kind of |
| CN109826231A (en) * | 2019-02-15 | 2019-05-31 | 沈阳铁道勘察设计院有限公司 | A kind of novel super-high U-type groove structure and its setting method |
| CN110485227A (en) * | 2019-07-29 | 2019-11-22 | 中交四公局第一工程有限公司 | A kind of firm formula road structure |
| CN113073538A (en) * | 2021-03-17 | 2021-07-06 | 安徽省交通规划设计研究总院股份有限公司 | High pile plate-soil combined road |
| CN113914163A (en) * | 2021-09-17 | 2022-01-11 | 山东高速工程建设集团有限公司 | Construction method of cement soil road bed on highway |
-
2014
- 2014-05-22 CN CN201420264501.6U patent/CN203960700U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107034744A (en) * | 2017-04-10 | 2017-08-11 | 中铁第四勘察设计院集团有限公司 | Concurrent operation high-speed railway separate type circuit road structure and its construction method |
| CN108222060A (en) * | 2018-02-12 | 2018-06-29 | 中铁二院工程集团有限责任公司 | High-speed railway, highway pile foundation joist buttress type pallet subgrade support retainer structure |
| CN108755284A (en) * | 2018-06-15 | 2018-11-06 | 中铁西安勘察设计研究院有限责任公司 | Reduce the railway bed structure of subgrade settlement deformation to lacing wire material U-type groove |
| CN108660886A (en) * | 2018-06-27 | 2018-10-16 | 贵州智华建设工程有限责任公司 | It is a kind of to build in the high embankment structure on slip mass |
| CN108660886B (en) * | 2018-06-27 | 2023-08-25 | 贵州智华建设工程有限责任公司 | High embankment structure built on landslide body |
| CN109235153A (en) * | 2018-09-17 | 2019-01-18 | 中铁二院工程集团有限责任公司 | The anti-counterfort U-type groove structure of railway high-filled embankment |
| CN109440545A (en) * | 2018-11-30 | 2019-03-08 | 中铁第四勘察设计院集团有限公司 | The road structure and construction method of operation high-speed railway are worn under a kind of |
| CN109826231A (en) * | 2019-02-15 | 2019-05-31 | 沈阳铁道勘察设计院有限公司 | A kind of novel super-high U-type groove structure and its setting method |
| CN110485227A (en) * | 2019-07-29 | 2019-11-22 | 中交四公局第一工程有限公司 | A kind of firm formula road structure |
| CN113073538A (en) * | 2021-03-17 | 2021-07-06 | 安徽省交通规划设计研究总院股份有限公司 | High pile plate-soil combined road |
| CN113914163A (en) * | 2021-09-17 | 2022-01-11 | 山东高速工程建设集团有限公司 | Construction method of cement soil road bed on highway |
| CN113914163B (en) * | 2021-09-17 | 2022-12-13 | 山东高速工程建设集团有限公司 | Construction method of cement soil road bed on highway |
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