CN101634129A - Method for treating corbel with longitudinal crack in riverine highway - Google Patents
Method for treating corbel with longitudinal crack in riverine highway Download PDFInfo
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- CN101634129A CN101634129A CN200910181931A CN200910181931A CN101634129A CN 101634129 A CN101634129 A CN 101634129A CN 200910181931 A CN200910181931 A CN 200910181931A CN 200910181931 A CN200910181931 A CN 200910181931A CN 101634129 A CN101634129 A CN 101634129A
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- highway
- corbel
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- longitudinal crack
- riverine
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Abstract
The invention relates to a method for treating a corbel with a longitudinal crack in a riverine highway, overcoming the defect that the prior art comprising the prior radical treating effects of excavation, back filling, grid laying, grouting, impermeable wall setting and the like can not fundamentally inhibit the destruction function of transverse pulling force to beds. The invention adopts the corbel as a reinforced concrete member, the corbel is longitudinally laid perpendicular to the highway below the face of the highway, and the development and the extension of the longitudinal crack can be effectively prevented by utilizing the favorable tensile property of steel bars. Namely, the corbel has the function of strengthening the tensile capability of embankment foundation soil bodies or fillers, the placement direction of the steel bars inside the corbel is vertical to the direction of the crack, the steel bars can completely bear transverse horizontal force borne by the beds because of favorable tensile property, the longitudinal cracking of the beds is prevented, and the reflection and the diffusion of the longitudinal crack of the beds towards the face of the highway are thoroughly cut off. For the service life of the highway, the steel bars are wrapt by a concrete material, and the durability of the steel bars can be effectively ensured.
Description
Technical field
The present invention relates to a kind of highway stabilization works job practices, particularly a kind of method for treating corbel with longitudinal crack in riverine highway.
Background technology
Along the river highway is not only being undertaken common road function and effect, also bearing the function and the task of river levee along the river, therefore its subgrade and pavement must both bear bigger traffic loading, simultaneously the influence that must stand the river fluctuation in stage and wash away again at the upstream face and the back side of side slope.But, when highway is dealt with these two kinds of strength along the river, all can go wrong usually, the direct form of expression of its direct disease is mainly the road surface and longitudinal cracking occurs.
Before the present invention, adopted the whole bag of tricks to attempt to make great efforts to address this problem, comprise the excavation backfill, lay grid, be in the milk, be provided with impervious wall etc., the essential reason of roadbed longitudinal cracking is horizontal tension, because said method mostly is the act that takes stopgap measures, fail fundamentally to contain the destruction of lateral pull, so this harm fails effectively to be solved always to roadbed.
Summary of the invention
Purpose of the present invention just is to overcome above-mentioned defective, develops a kind of method for treating corbel with longitudinal crack in riverine highway.
Technical scheme of the present invention is:
Method for treating corbel with longitudinal crack in riverine highway, its major technique step is:
(1) the cracking of highway along the river highway section vertically on, transversal slotting;
(2) groove is to basic unit, levelling, compacting;
(3) laterally lay elongated reinforcing bar;
(4) on elongated reinforcing bar, lay concrete, form sleeper beam.
Advantage of the present invention and effect are that the present invention is intended to propose a kind of crack punishment method that horizontal sleeper beam is laid in highway cracking highway section along the river, sleeper beam is a reinforced concrete member, below the road surface, vertically lay, utilize the good tensile property of reinforcing bar can effectively prevent the development extension of longitudinal crack perpendicular to highway.The method also can be in the process that roadbed is transformed synchronization implementation.
The essence of highway subgrade longitudinal crack formation along the river is the resistance to tension weakness of the levee foundation soil body or filler, along the river highway embankment will be because fluctuation in stage will weaken the subgrade soils bearing capacity, cause under vertical vehicular load effect, roadbed is to both sides occurred level displacement, and then the longitudinal cracking of generation subgrade and pavement.And because the existence of sleeper beam of the present invention, the inner steel bar placement direction is vertical with fractuer direction, the tensile property that reinforcing bar is good can be born the suffered transverse horizontal power of roadbed fully, prevents the longitudinal cracking of roadbed, and thoroughly cuts off the reflection of roadbed longitudinal crack to the road surface and spread.With respect to the application life of highway, reinforcing bar is wrapped up by concrete material, and its durability can effectively be guaranteed.
Particularly:
(1) construction technology is simple, need not main equipment and marches into the arena, and is if with prefabricated sleeper beam short construction period, little to traffic impact;
(2) with low cost, the invention of this punishment method is based on the analysis to the longitudinal crack origin cause of formation, according to the mechanics design principle, gives full play to the mechanical property of reinforcing bar;
(3) deal with problems thoroughly, avoid the destruction repeatedly of road pavement.
Other advantages of the present invention and effect will go on to say below.
Description of drawings
Fig. 1---be the transverse cross-sectional view of highway along the river.
Fig. 2---be highway vertical view along the river.
The specific embodiment
The object of the present invention is achieved like this:
On cracking highway section roadbed 1, utilize cutting machine along laterally being slotted in the road surface, groove width is dug to basic unit at 200-300mm, basic unit is tamped levelling, elongated reinforcing bar 5 is set, concreting on leveling layer, maintenance forms steel concrete sleeper beam 4, soil body backfill then, road surface pavement; Sleeper beam 4 needs in the cracking highway section every the parallel placement of a segment distance, 5-15 rice distance, choose usually 10 meters preferable, but specifically should choose according to the order of severity of cracking; The two ends of sleeper beam 4 are arranged to whole fixedly with upstream face 2 and back side 3 respectively, and fixed make can adopt the form that increases sleeper beam two ends cross sectional area, integral body of side slope formation of cross section augmenting portion and upstream face 2 and back side 3; The layout of a plurality of sleeper beams 4 forms the highway subgrade sleeper beam that is similar to sleeper.
On highway pavement 6 along the river, when roadbed 1 produces lateral displacement, the soil body and sleeper beam 4 equal tensions, soil body tension bearing capacity ratio a little less than, and reinforcing bar 5 tensile properties in the sleeper beam 4 are good, utilize this characteristic, can effectively stop the lateral displacement of roadbed, thereby avoid the generation of roadbed longitudinal crack.
Though structure of the present invention is simple, actual effect is very obvious.
Claims (6)
1. method for treating corbel with longitudinal crack in riverine highway the steps include:
(1) the cracking of highway along the river highway section vertically on, transversal slotting;
(2) groove is to basic unit, levelling, compacting;
(3) laterally lay elongated reinforcing bar;
(4) on elongated reinforcing bar, lay concrete, form sleeper beam.
2. method for treating corbel with longitudinal crack in riverine highway according to claim 1, it is characterized in that along the river highway cracking highway section laterally open a groove every a segment distance on vertically.
3. method for treating corbel with longitudinal crack in riverine highway according to claim 2 is characterized in that every segment distance is at 5-15 rice.
4. method for treating corbel with longitudinal crack in riverine highway according to claim 1 is characterized in that the sleeper beam two ends are fixed with upstream face, back side integral body respectively.
5. method for treating corbel with longitudinal crack in riverine highway according to claim 1 is characterized in that the width 200-300 millimeter of groove.
6. method for treating corbel with longitudinal crack in riverine highway according to claim 1, its feature is formed in the leveling layer at sleeper beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910181931A CN101634129A (en) | 2009-08-04 | 2009-08-04 | Method for treating corbel with longitudinal crack in riverine highway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910181931A CN101634129A (en) | 2009-08-04 | 2009-08-04 | Method for treating corbel with longitudinal crack in riverine highway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101634129A true CN101634129A (en) | 2010-01-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910181931A Pending CN101634129A (en) | 2009-08-04 | 2009-08-04 | Method for treating corbel with longitudinal crack in riverine highway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101634129A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276638A (en) * | 2013-05-21 | 2013-09-04 | 铁道第三勘察设计院集团有限公司 | Existing railway roadbed micropile reinforcing structure under operation condition |
| CN103790079A (en) * | 2014-03-05 | 2014-05-14 | 中南大学 | Roadbed prestress reinforcing and strengthening method |
| CN108239904A (en) * | 2016-12-26 | 2018-07-03 | 中冶天工集团天津有限公司 | A kind of cement concrete crack resistence layer structure and construction method |
| CN110306582A (en) * | 2019-07-03 | 2019-10-08 | 中国二十冶集团有限公司 | The method of construction of the prefabricated sleeper beam of heavy load |
-
2009
- 2009-08-04 CN CN200910181931A patent/CN101634129A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276638A (en) * | 2013-05-21 | 2013-09-04 | 铁道第三勘察设计院集团有限公司 | Existing railway roadbed micropile reinforcing structure under operation condition |
| CN103790079A (en) * | 2014-03-05 | 2014-05-14 | 中南大学 | Roadbed prestress reinforcing and strengthening method |
| CN108239904A (en) * | 2016-12-26 | 2018-07-03 | 中冶天工集团天津有限公司 | A kind of cement concrete crack resistence layer structure and construction method |
| CN110306582A (en) * | 2019-07-03 | 2019-10-08 | 中国二十冶集团有限公司 | The method of construction of the prefabricated sleeper beam of heavy load |
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Open date: 20100127 |