CN106284011B - Roadbed construction method - Google Patents
Roadbed construction method Download PDFInfo
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- CN106284011B CN106284011B CN201610674178.3A CN201610674178A CN106284011B CN 106284011 B CN106284011 B CN 106284011B CN 201610674178 A CN201610674178 A CN 201610674178A CN 106284011 B CN106284011 B CN 106284011B
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention discloses a kind of roadbed construction method, includes the following steps：Rhone, S2 are excavated in S1, in situ roadbed outside, and the unwrapping wire positioning of pile for prestressed pipe, determines stake at piling；S3, original place road excavation to target depth form base, and element soil adulterates levelling grinding compacting with lime；S4, point two layers of making blotter are 90 100mm per layer thickness；S5, making geogrids layer：Divide two layers of making, first making steel plastic geogrid that it is levelling to repave mountain flour；S6, making reinforced concrete floor：Assembling reinforcement is welded around pile for prestressed pipe forms tiling grid shape bar-mat reinforcement, the casting concrete on bar-mat reinforcement and pile for prestressed pipe；S7, making anti-filter geotextile layer；Anti-filter geotextile layer includes anti-filter geotextiles and the geomembrane for being covered in anti-filter Geotextile；S8 pours bitumen layer；Divide three layers to pour, every layer of 5cm.The present invention has the advantages that stability is good, settling amount is low.
Description
Technical field
The present invention relates to road construction territories, it is more particularly related to a kind of roadbed construction method.
Background technology
There is considerable muddy soft soil in coastal area, and muddy soft soil layer is thicker, and some areas are even more than 15
Rice.For so deep Soft Roadbed, embankment stability is very poor, using change fill out, drain bar consolidation, powder-spray pile, water
Treated that soft base construction quality is difficult to achieve the effect that ideal, treatment of soft foundation road for the conventional construction methods such as mud mixing pile
The settlement after construction and jump vehicle phenomenon of section are extremely serious.
Invention content
Shortcoming present in view of the above technology, the present invention provide a kind of stability it is good, reduce settling amount roadbed
Construction method.
In order to realize these purposes and other advantages according to the present invention, the invention is realized by the following technical scheme：
Roadbed construction method of the present invention,
S1 removes original place surface irregularities, rhone is excavated on the outside of in situ roadbed,
S2, the unwrapping wire positioning of pile for prestressed pipe, determine stake at piling；
S3, original place road excavation to target depth form base, and lime and the element soil of the base are adulterated levelling roll
It is closely knit；
S4, making blotter, point two layers of making are 90-100mm, the rubble insertion element soil of lower level floor per layer thickness
In；
S5, making geogrids layer：Divide two layers of making, first making steel plastic geogrid that it is levelling to repave mountain flour；
S6, making reinforced concrete floor：In the geogrids layer, assembling reinforcement shape is welded around pile for prestressed pipe
At tiling grid shape bar-mat reinforcement, the casting concrete on the bar-mat reinforcement and the pile for prestressed pipe, the concrete is by weight
Score is poured in the ratio of stone 10%-15%, cement 22%-35%, sand 30%-40%, water 20%-30%；
S7, making anti-filter geotextile layer；The anti-filter geotextile layer include anti-filter geotextiles and be covered in anti-filter geotechnique
The geomembrane on cloth surface；
S8 pours bitumen layer；Divide three layers to pour, every layer of 5cm.
Preferably, the rhone is less than original place roadbed 1.6m；The excavation target depth is 50mm.
Preferably, the weight fraction ratio of the lime and the element soil is 0.18:1, the compactness of the base is
90%.
Preferably, the blotter is rolled in the crushed stone of 30~40mm by cobble or particle size range and is laid with.
Preferably, stone in the mountain flour, stone powder, lime particle, miscellaneous soil weight fraction ratio be 42:37:
11:10。
The present invention includes at least following advantageous effect：
Roadbed construction method of the present invention is opened after excavating rhone on the outside of roadbed, placing pile for prestressed pipe
After digging base, making blotter, geogrids layer, reinforced concrete floor, anti-filter geotextile layer and bitumen layer successively, effectively
Ground consolidates base, improves antiseepage, to reduce settling amount.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the flow chart of roadbed construction method of the present invention.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
As shown in Figure 1, the present invention provides a kind of roadbed construction method, include the following steps：
S1 removes original place surface irregularities, rhone is excavated on the outside of in situ roadbed,
S2, the unwrapping wire positioning of pile for prestressed pipe, determine stake at piling；
S3, original place road excavation to target depth form base, and lime and the element soil of the base are adulterated levelling roll
It is closely knit；
S4, making blotter, point two layers of making are 90-100mm, the rubble insertion element soil of lower level floor per layer thickness
In；
S5, making geogrids layer：Divide two layers of making, first making steel plastic geogrid that it is levelling to repave mountain flour；
S6, making reinforced concrete floor：In the geogrids layer, assembling reinforcement shape is welded around pile for prestressed pipe
At tiling grid shape bar-mat reinforcement, the casting concrete on the bar-mat reinforcement and the pile for prestressed pipe, the concrete is by weight
Score is poured in the ratio of stone 10%-15%, cement 22%-35%, sand 30%-40%, water 20%-30%；
S7, making anti-filter geotextile layer；The anti-filter geotextile layer include anti-filter geotextiles and be covered in anti-filter geotechnique
The geomembrane on cloth surface；
S8 pours bitumen layer；Divide three layers to pour, every layer of 5cm.
Wherein, rhone is less than original place roadbed 1.6m；It is 50mm to excavate target depth.The weight fraction ratio of lime and element soil
Example is 0.18:1, the compactness of base is 90%.The element soil doping levelling grinding compacting of lime of base, significantly reduces plain soil
Water content.Pile for prestressed pipe is placed, the bearing capacity of roadbed is improved.Blotter is by cobble or particle size range in the broken of 30~40mm
Stone, which rolls, to be laid with, and making blotter further improves the bearing capacity of roadbed.It is stone in mountain flour, stone powder, white
Ash particle, miscellaneous soil weight fraction ratio be 42:37:11:10, it is levelling to repave mountain flour after making steel plastic geogrid, anti-aging,
Oxidation susceptibility, can the adverse circumstances such as acid and alkali resistance, salt corrosion, there is stronger bearing capacity.Anti-filter geotextiles are good ventilative
Property and water penetration, make flow pass through, and the soil particle that effectively shuts off, fine sand, small building stones etc., to keep the stability of roadbed.
Comparative example
By the roadbed construction method of the present invention compared with 2 construction method of comparative example 1 and comparative example, such as 1 institute of table
Show：
1 construction technology of table and parameter compare
By above-mentioned table 1 it is found that parameters ratio is set in roadbed construction method provided by the invention and work progress
It sets, subgrade moisture content is relatively low, compacting counting is higher；Have the advantages that stability is good, settling amount is low.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With.It can be applied to various suitable the field of the invention completely.It for those skilled in the art can be easily
Realize other modification.Therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (5)
1. a kind of roadbed construction method, which is characterized in that construction method includes the following steps：
S1 removes original place surface irregularities, rhone is excavated on the outside of in situ roadbed,
S2, the unwrapping wire positioning of pile for prestressed pipe, determine stake at piling；
S3, original place road excavation to target depth form base, and the element soil of lime and the base is adulterated levelling grinding compacting；
S4, making blotter, point two layers of making is 90-100mm per layer thickness, and the rubble of lower level floor is embedded in element soil；
S5, making geogrids layer：Divide two layers of making, first making steel plastic geogrid that it is levelling to repave mountain flour；
S6, making reinforced concrete floor：In the geogrids layer, around pile for prestressed pipe weld assembling reinforcement formed it is flat
Lapping trellis bar-mat reinforcement, the casting concrete on the bar-mat reinforcement and the pile for prestressed pipe, the concrete is by weight fraction
It is poured in the ratio of stone 10%-15%, cement 22%-35%, sand 30%-40%, water 20%-30%；
S7, making anti-filter geotextile layer；The anti-filter geotextile layer includes anti-filter geotextiles and is covered in anti-filter geotextiles table
The geomembrane in face；
S8 pours bitumen layer；Divide three layers to pour, every layer of 5cm.
2. roadbed construction method as described in claim 1, which is characterized in that the rhone is less than original place roadbed 1.6m；Institute
It is 50mm to state and excavate target depth.
3. roadbed construction method as described in claim 1, which is characterized in that the weight fraction ratio of the lime and the element soil
Example is 0.18:1, the compactness of the base is 90%.
4. roadbed construction method as described in claim 1, which is characterized in that
The blotter is rolled in the crushed stone of 30~40mm by cobble or particle size range and is laid with.
5. roadbed construction method as described in claim 1, which is characterized in that
Stone in the mountain flour, stone powder, lime particle, miscellaneous soil weight fraction ratio be 42:37:11:10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674178.3A CN106284011B (en) | 2016-08-16 | 2016-08-16 | Roadbed construction method |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201610674178.3A CN106284011B (en) | 2016-08-16 | 2016-08-16 | Roadbed construction method |
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| CN106284011A CN106284011A (en) | 2017-01-04 |
| CN106284011B true CN106284011B (en) | 2018-08-28 |
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| CN111041930A (en) * | 2019-12-25 | 2020-04-21 | 华润建筑有限公司 | Expressway anti-scouring roadbed pavement and construction method |
| CN111535103B (en) * | 2020-04-15 | 2022-01-28 | 中建力天集团有限公司 | Municipal roadbed construction method |
| CN112227123A (en) * | 2020-10-23 | 2021-01-15 | 中民集团第二工程有限公司 | Construction method for backfilling road subgrade by matching excavator |
| CN112227124A (en) * | 2020-10-26 | 2021-01-15 | 温州展业建设工程有限公司 | Construction method for highway subgrade treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3528950B2 (en) * | 1997-05-19 | 2004-05-24 | 株式会社ダイヤコンサルタント | Road construction method |
| CN103806433A (en) * | 2014-03-06 | 2014-05-21 | 四川雅豪房地产开发有限公司 | Foundation backfill reinforcement method |
| CN104894937A (en) * | 2015-04-10 | 2015-09-09 | 成军 | Construction method for mucky soft soil roadbase tubular pile |
| CN205223768U (en) * | 2015-12-17 | 2016-05-11 | 杨继峰 | Road subgrade sedimentation preventing facility |
| CN105648867B (en) * | 2016-03-02 | 2017-10-31 | 杭州江润科技有限公司 | A kind of construction method of comprehensive ecological roadbed system |
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Effective date of registration: 20200331 Address after: 102600 No. 1 Building, No. 13 Keyuan Road, Daxing District, Beijing Patentee after: CHINA ZHONGHUA GEOTECHNICAL ENGINEERING GROUP Co.,Ltd. Address before: 231400 Anhui city of Anqing province Tongcheng city longmian Street sand road Tongcheng Yongjin Construction Engineering Company Limited Patentee before: TONGCHENG YONGJIN BUILDING ENGINEERING Co.,Ltd. |
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