CN107254817B - Construction method based on assembled template new and old roadbed light soil splicing widened structure - Google Patents
Construction method based on assembled template new and old roadbed light soil splicing widened structure Download PDFInfo
- Publication number
- CN107254817B CN107254817B CN201710457274.7A CN201710457274A CN107254817B CN 107254817 B CN107254817 B CN 107254817B CN 201710457274 A CN201710457274 A CN 201710457274A CN 107254817 B CN107254817 B CN 107254817B
- Authority
- CN
- China
- Prior art keywords
- embankment
- new
- prefabricated
- construction
- prefabricated side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
Abstract
It is main comprising steps of preparation of construction, setting embankment stake, cast-in-place sash beam and side bar construction, installation T shape shearing-resistant member and jacking, the prefabricated side slope plate of installation, being laid in reinforced mesh, lightweight earthen backfill, the construction of new top course and side slope sash beam and afforest operation the present invention relates to a kind of construction method based on assembled template new and old roadbed light soil splicing widened structure.Embankment widened structure new and old roadbed joining place shear resistance according to the present invention is strong, and stability is good.
Description
Technical field
The present invention relates to a kind of construction methods of jointing of new and old roadbed widened structure, in particular to a kind of to be based on assembled mould
Plate new and old roadbed light soil splices the construction method of widened structure, can reinforce new and old roadbed binding site intensity, enhances roadbed road
The whole non-deformability in face, prevents pavement cracking.Belong to highway engineering field, is suitable for old road reconstruction and extension project, it is especially suitable
For the high embankment road widening in soft clay area.
Background technique
In recent years, with the rapid economic development in our country, traffic volume of highway cumulative year after year, the volume of traffic of some highways have connect
Nearly saturation flow, in this regard, highway reconstruction and expansion project is increasingly to meet growing transport need and social development needs
It is more.Though these projects are to improving category of roads and improving road network structure Technological Economy value with higher, due to the road Jiu Lu
The settlement difference of the road Di Hexin embankment causes new former embankment junction the construction qualities such as pavement cracking, local subsidence easily occur and asks
Topic.
To reinforce the combination of new-old pavement, the differential settlement amount of effectively control new-old concrete bond, has more place at present
Reason method common are and use step excavation at new former road embankment loading, be laid with Application of geosynthetics-reinforced layer, using light filler
The project slash such as railway embankment.Wherein, step excavation is excavated within the scope of old road embankment fill material at new former road embankment loading
Step, the method construction is simple can enhance the bonding strength at new former road embankment loading to a certain extent；Geosynthetics is set
Reinforcement cushion, reinforced soil embankment are that the materials such as TGXG, reinforced mesh are laid within the scope of new embankment fill material, with reinforcing filler
Globality and intensity；It is using light filler as embankment fill material that light road bank, which fills, which can largely mitigate
The weight of new railway embankment, reduction newly fill out embankment to the additional stress on former embankment basis.But it is directed to the high embankment roadbed in soft clay area
Widening Construction, above-mentioned measure is already insufficient, and after high embankment roadbed widening, new and old roadbed differential settlement is still obvious,
Especially widening side, old roadbed side slope range differential settlement is obvious, generate catastrophe point, easily herein generate unequal settlement crack and
Slide shear surface.If not taking special measure, differential settlement destructive power is still larger after the work of junction, needs primary study, control
System.
Therefore, it is high to need to invent a kind of construction efficiency at present, while the old and new's embankment non-deformability is strong, settlement after construction it is small and
Economic technology benefit new and old roadbed widened structure outstanding.The present invention uses in new and old roadbed and road surface binding site and digs step,
T shape shearing-resistant member is installed, while setting embankment stake in lower part, and again with prefabricated side slope plate rapid shaping.It is seen in practice at present, effect
Be it is significant, new and old roadbed binding site intensity can be reinforced, enhance the whole non-deformability of subgrade and pavement, prevent road surface from opening
It splits, speed of application is fast, and economic technology benefit is prominent.
Summary of the invention
It is high that the purpose of the present invention is to provide a kind of construction efficiency, while can reinforce new and old roadbed binding site intensity,
The whole non-deformability for enhancing subgrade and pavement, prevents pavement cracking, and economic technology benefit roadbed widening structure outstanding
Construction method.
To realize the above-mentioned technical purpose, the invention adopts the following technical scheme:
Construction method based on assembled template new and old roadbed light soil splicing widened structure, which is characterized in that the base
Splicing widened structure in assembled template new and old roadbed light soil mainly includes former embankment, embankment stake, sash beam, prefabricated side slope
Plate, prefabricated side bar, T shape shearing-resistant member and light soil；Former side slope of embankment excavates stepped, and T shape shearing-resistant member is arranged at step；New road
Embankment stake is arranged in dike lower part, and stake top is sash beam, equidistantly lays lateral strip drainage blanket in sash beam, sash beam end with
Prefabricated side bar is connected, the prefabricated side slope plate of installation in prefabricated side bar；Prefabricated side slope board bottom portion and prefabricated side bar anchor, and top is by forever
Long property pull rod is connect with the jacking at the top of former embankment；New embankment roadbed is light soil, is equipped with reinforced mesh in light soil；Light soil
Top is new supercrust, is equipped with prefabricated guardrail base in new supercrust, the construction method key step is as follows:
1) preparation of construction: marking construction area according to construction drawing, carries out former slope surface finishing, and former slope surface is excavated into platform
Scalariform；
2) it sets embankment stake: according to design drawing, setting powder-spray pile as embankment stake in corresponding position；
3) cast-in-place sash beam and side bar construction: after powder-spray pile pile, in stake top formwork, sash beam is poured, and in regulation area
Lateral strip drainage blanket is filled in domain；After sash beam demoulding, prefabricated side bar is lifted in place, review axis；
4) T shape shearing-resistant member and jacking are installed: the successively installation T shape shearing resistance from the bottom to top in the step-like excavation face of former embankment
Part, T shape shearing-resistant member are anchored using soil nailing and former embankment, and top layer installs L shape jacking, and jacking uses spiral shell with next layer of T shape shearing-resistant member
Bar anchoring；
5) install prefabricated side slope plate: prefabricated side slope plate is in place using loop wheel machine lifting, and lower end is embedded in prefabricated side bar and anchors,
Permanent pull rod is installed between upper end and L shape jacking and sets up interim strut；
6) be laid with reinforced mesh: reinforced mesh from bottom to top fix with T shape shearing-resistant member by pavement layer by layer, one end, and the other end is put
It sets on prefabricated side slope plate；
7) lightweight earthen backfill: after the completion of reinforced mesh reinforcing, region is enclosed in prefabricated side slope plate and former embankment excavation face
Inside pour foam concrete；
8) new top course is constructed: the lightweight earthen backfill completion new supercrust of after-pouring, pre-buried guardrail precast base in base,
After the completion of maintenance construction, guardrail is installed；
9) operation is afforested in side slope sash beam: after the completion of above-mentioned construction, the soil moved in improve the original grass planting in side slope sash beam.
Further, the T shape shearing-resistant member surface is with holes, by the preformed hole of top surface and side install soil nailing with
Former embankment excavation face is fixed, and the tongue and groove that neighbouring T shape shearing-resistant member is arranged by lap-joint is engaged, and using through oblique
Muscle connects all T-type shearing-resistant members integral.
The sash beam is monolithic reinforced concrete structure, and sash Liang Xin embankment slope foot end is reserved with inverted T-shaped sky
Heart slot.
The prefabricated side bar is equipped with oblique rim of a cup, and oblique rim of a cup top is expansion type rim of a cup, and expansion type rim of a cup bottom is pre-
Connecting screw is buried, drainage channel is reserved in prefabricated side bar, prefabricated side bar bottom is equipped with T shape linkage section.
The prefabricated side slope board bottom portion is equipped with wing plate, and screw hole is reserved on wing plate, and prefabricated side slope plate backfill side is uniformly set
It sets reinforced mesh and shelves plate and interior side stringer, other side setting outside sash beam.
Long filament casing is preset in the L-shaped structure of the jacking, side, and jacking is anchored by screw rod and lower part T shape shearing-resistant member
Connection.
Guardrail base connecting screw is embedded in the prefabricated guardrail base.
The present invention have the characteristics that it is following and the utility model has the advantages that
(1) new and old roadbed joining place excavates stepped, and T shape shearing-resistant member is arranged at step, is aided with soil nailing and fixes, and utilize
All T shape shearing-resistant members are linked to be entirety through diagonal bar, enhance the globality of new and old roadbed；Embankment is set below new embankment simultaneously
Stake, sash beam is arranged in embankment stake top portion, and lateral strip drainage blanket is arranged, and improves embankment stability, and embankment is heavy after reducing work
Drop.
(2) new side slope of embankment uses prefabricated assembled slope panel, and lateral overlap forms grass planting sash, and inside is evenly arranged with
Ribs and reinforced mesh shelve plate, and slope panel top is provided with temporary support steel pipe and permanent pull rod, slope panel and old road
Light soil is backfilled between dike, stability is good, and construction efficiency is high, short time limit.
(3) prefabricated guardrail base is arranged in new embankment, and roadside guardrail directly passes through the screw rod in lower end wing plate and precast base
Anchoring, then fill concrete, quick construction, conveniently.
Detailed description of the invention
Fig. 1 is that the present invention is based on assembled template new and old roadbed light soils to splice widened structure schematic diagram；
Fig. 2 is structure when not backfilling light soil the present invention is based on assembled template new and old roadbed light soil splicing widened structure
Schematic diagram；
Fig. 3 is prefabricated side slope board bottom portion and side bar connection schematic diagram in the present invention；
Fig. 4 is guardrail scheme of installation in the present invention；
Fig. 5 is stake top sash girder construction top view in the present invention.
In figure: 1- original roadbed ground, 2- original roadbed bed course, 3- original roadbed, 4- original road surface, 5- soil nailing, the fixed spiral shell of 6- jacking
Bar, 7- long filament casing, 8-L shape jacking, 9-T shape shearing-resistant member, the new embankment of 10-, the permanent pull rod of 11-, the top surface 12- anti-filter geotechnique
Cloth, the prefabricated guardrail base of 13-, 14- guardrail, side stringer in 15-, 16- slope plant, the prefabricated side slope plate of 17-, 18- steel mesh
Piece, sash beam on the outside of 19-, 20- light soil, 21- reinforced mesh shelve plate, 22- connection Short bolt, pouring concrete after 23- side bar,
The prefabricated side bar of 24-, 25- drainpipe, 26- embankment stake, 27- run through diagonal bar, the bottom surface 28- anti-filter geotextiles, the draining of 29- transverse direction strip
Bed course, 30- stake top sash beam, the new road ground of 31-, the provisional strut of 32-, 33- hold-doun nut, 34- pre embedded bolt, the 35- wing
Plate, 36- filleting concrete, 37-T shape linkage section, pouring concrete after 38- guardrail, 39- guardrail base connecting screw, 40- guardrail are solid
Determine nut, 41- guardrail bottom wing plate, 42- stake top sash beam backfill.
Specific embodiment
The precasting process requirement of prefabricated side slope plate, prefabricated side bar etc., lightweight earthen backfill are applied in present embodiment
Work technical requirements, the construction process requirement of embankment stake, slope plants type etc. repeat no more, and emphasis illustrates base of the present invention
In the embodiment of assembled template new and old roadbed light soil splicing widened structure construction.
Fig. 1 is to splice widened structure schematic diagram the present invention is based on assembled template new and old roadbed light soil, and Fig. 2 is the present invention
Structural schematic diagram when not backfilling light soil based on assembled template new and old roadbed light soil splicing widened structure, Fig. 3 are the present invention
In prefabricated side slope board bottom portion and side bar connection schematic diagram, Fig. 4 is guardrail scheme of installation in the present invention, and Fig. 5 is stake in the present invention
Top frame lattice beam structure top view.Widened structure is spliced based on assembled template new and old roadbed light soil shown in referring to Fig.1, mainly
It is made of former embankment, embankment stake 26, sash beam 30, prefabricated side slope plate 17, prefabricated side bar 24, T shape shearing-resistant member 9, light soil 20 etc..
Former side slope of embankment excavates stepped, and T shape shearing-resistant member 9 is arranged at step；9 surfaces of T shape shearing-resistant member are with holes, by
Installation soil nailing 5 is fixed with former embankment excavation face in the preformed hole of top surface and side, and neighbouring T shape shearing-resistant member 9 passes through overlap joint
The tongue and groove for locating setting is engaged, and integral using all T-type shearing-resistant members 9 are connected through diagonal bar 27.
Embankment stake 26 is arranged in new embankment lower part, and stake top is sash beam 30.Sash beam 30 is monolithic reinforced concrete structure, and
Sash beam 30 is reserved with inverted T-shaped groove at new embankment slope foot end.Lateral strip drainage blanket is equidistantly laid in sash beam 30
29, sash beam end is connected with prefabricated side bar 24, and prefabricated side bar 24 is equipped with oblique rim of a cup, and oblique rim of a cup top is expansion type cup
Mouthful, the pre-buried connecting screw in expansion type rim of a cup bottom reserves drainage channel in prefabricated side bar, and prefabricated side bar bottom is equipped with the connection of T shape
Section.The prefabricated side slope plate 17 of installation in prefabricated side bar 24；Prefabricated 17 bottom of side slope plate and prefabricated side bar 24 anchor, and top passes through permanent
Property pull rod 11 connect with the jacking 8 at the top of former embankment；Prefabricated 17 bottom of side slope plate is equipped with wing plate 35, reserves screw rod on wing plate 35
Hole, the prefabricated backfill of side slope plate 17 side are uniformly arranged reinforced mesh and shelve plate 21 and interior side stringer 15, and outer side frame is arranged in the other side
Lattice beam 19.Long filament casing 7 is preset in the L-shaped structure of jacking 8, side, and jacking 8 is connected by screw rod and the anchoring of lower part T shape shearing-resistant member 9
It connects.
New 10 lower part of embankment is light soil 20, is equipped with reinforced mesh 18 in light soil 20；It is new supercrust at the top of light soil,
Prefabricated guardrail base 13 is equipped in new supercrust.Guardrail base connecting screw 39 is embedded in prefabricated guardrail base 13.
The above-mentioned construction method based on assembled template new and old roadbed light soil splicing widened structure, key step are as follows:
1) preparation of construction: marking construction area according to construction drawing, carries out former slope surface finishing, and former slope surface is excavated into platform
Scalariform；
2) it sets embankment stake: according to design drawing, setting powder-spray pile as embankment stake 26 in corresponding position；
3) cast-in-place sash beam and side bar construction: after powder-spray pile pile, in stake top formwork, sash beam 30 is poured, and providing
Lateral strip drainage blanket 29 is filled in region；After sash beam demoulding, prefabricated side bar 24 is lifted in place, axis is checked；
4) T shape shearing-resistant member and jacking are installed: T shape shearing-resistant member is successively installed from the bottom to top in the step-like excavation face of former embankment
9, T shape shearing-resistant members 9 are anchored using soil nailing 5 and former embankment, and top layer installs L shape jacking 8, and jacking 8 is adopted with next layer of T shape shearing-resistant member 9
It is anchored with screw rod；
5) install prefabricated side slope plate: prefabricated side slope plate 17 is in place using loop wheel machine lifting, and lower end is embedded in prefabricated side bar 24 simultaneously
Anchoring, installs permanent pull rod 11 and sets up interim strut 32 between upper end and L shape jacking 8；
6) be laid with reinforced mesh: reinforced mesh 18 from bottom to top fix by pavement layer by layer, one end and T shape shearing-resistant member 9, the other end
It is shelved on prefabricated side slope plate；
7) lightweight earthen backfill: after the completion of the reinforcing of reinforced mesh 18, area is enclosed in prefabricated side slope plate and former embankment excavation face
Foam concrete is poured in domain；
8) new top course is constructed: the lightweight earthen backfill completion new supercrust of after-pouring, pre-buried guardrail precast base in base
13, after the completion of maintenance construction, guardrail 14 is installed；
9) operation is afforested in side slope sash beam: after the completion of above-mentioned construction, the soil moved in improve the original grass planting in side slope sash beam.Specifically apply
Steps are as follows for work:
Construction front lay marks construction area, and modifies to former embankment slope surface, and former slope surface is excavated stepped, step
Wide 1000mm, introversion 3%；Stake machine is arranged to march into the arena after excavation, accurate measuring axis and stake position, and demarcated with bamboo stick or reinforcing bar, road
(Powder Spray Pile) expanded diameter of dike stake 26 is 600mm, a length of 12000mm of stake.
After embankment stake 26 is completed, smooth location, binds sash beam steel again, and formwork pours C25 concrete, conserves, shape
At sash beam basis.30 specification of sash beam is 400mm × 400mm, is highly 80mm, and T word is reserved on the sash beam of slope foot end end
Shape groove, having a size of 300mm × 200mm, wide 50mm；And the transverse drainage band of one wide 300mm, draining are set every 10m
Band is mainly made of gravel, and foundation soil is backfilled in remaining sash beam.
After sash beam demoulding, prefabricated side bar 24 is lifted in place, the T shape linkage section of prefabricated side bar 24 is embedded in the pre- of sash beam
It stays in slot, and checks side bar axis, control errors are in the reasonable scope.Wherein prefabricated 24 specification of side bar is 600mm × 600mm,
Inside is equipped with 40 ° of oblique rims of a cup, the wide 150mm of rim of a cup, and oblique rim of a cup top is expansion type rim of a cup, expansion type cup mouth size 400mnm
× 120mm, expansion type rim of a cup are the connecting screw of the pre-buried diameter 8mm in bottom, and the draining that diameter 100mm is reserved in prefabricated side bar is logical
Road.
After side bar lifting, T shape shearing-resistant member 9, T shape shearing-resistant member are successively installed from the bottom to top in the step-like excavation face of former embankment
9 top surfaces and side wall dimensions are 600mm × 400mm, and wall thickness 20mm, T shape shearing-resistant member 9 is anchored using soil nailing 5 and former embankment, top layer
L shape jacking 8, wide 600mm, high 400mm, wall thickness 20mm, jacking 8 and next layer of T shape shearing-resistant member 9 are installed using screw rod anchoring, and
Jacking side wall welds the long filament casing 7 for setting internal diameter 16mm.
Prefabricated side slope plate 17 is equally in place using loop wheel machine lifting, and lower end is embedded in prefabricated side bar 24 and anchors, upper end and L shape
The permanent pull rod 11 of diameter 16mm is installed between jacking and sets up interim strut 32；Then by reinforced mesh 18 from bottom to top by
Layer is mated formation, and one end and T shape shearing-resistant member 9 are fixed, and the other end is shelved on prefabricated side slope plate.After the completion of reinforced mesh reinforcing,
Prefabricated side slope plate and former embankment excavation face enclose the foam concrete that placing intensity in region is C3.0.
Lightweight earthen backfill is completed the new supercrust of after-pouring, in base every the pre-buried specification of 3000mm for 150mm ×
The concrete guardrail precast base 13 of 150mm × 120mm installs guardrail 14, passes through guard rail rod bottom after the completion of maintenance construction
The preformed hole and guardrail base pre embedded bolt 39 of wing ring anchor, then recharge C20 concrete sealing groove.
After the completion of above-mentioned construction, the soil moved in improve the original grass planting in side slope sash beam.
Claims (7)
1. the construction method based on assembled template new and old roadbed light soil splicing widened structure, which is characterized in that described to be based on
Assembled template new and old roadbed light soil splicing widened structure mainly includes former embankment, embankment stake (26), sash beam (30), prefabricated
Side slope plate (17), prefabricated side bar (24), T shape shearing-resistant member (9) and light soil (20)；Former side slope of embankment excavates stepped, step
Place's setting T shape shearing-resistant member (9)；New embankment lower part setting embankment stake (26), stake top is sash beam (30), between waiting in sash beam (30)
Away from lateral strip drainage blanket (29) is laid, sash beam end is connected with prefabricated side bar (24), and installation is pre- in prefabricated side bar (24)
Side slope plate (17) processed；Prefabricated side slope plate (17) bottom and prefabricated side bar (24) anchor, and top passes through permanent pull rod (11) and former
Jacking (8) connection at the top of embankment；New embankment (10) roadbed is light soil (20), is equipped with reinforced mesh in light soil (20)
(18)；It is new supercrust at the top of light soil, is equipped with prefabricated guardrail base (13) in new supercrust, the construction method key step
It is as follows:
1) preparation of construction: marking construction area according to construction drawing, carries out former slope surface finishing, and former slope surface is excavated into step
Shape；
2) it sets embankment stake: according to design drawing, setting powder-spray pile as embankment stake (26) in corresponding position；
3) it cast-in-place sash beam and side bar construction: after powder-spray pile pile, in stake top formwork, pours sash beam (30), and in regulation area
Lateral strip drainage blanket (29) is filled in domain；After sash beam demoulding, prefabricated side bar (24) are lifted in place, review axis；
4) T shape shearing-resistant member and jacking are installed: successively installation T shape shearing-resistant member (9) from the bottom to top in the step-like excavation face of former embankment,
T shape shearing-resistant member (9) is anchored using soil nailing (5) and former embankment, and top layer installs L shape jacking (8), jacking (8) and next layer of T shape shearing resistance
Part (9) is anchored using screw rod；
5) install prefabricated side slope plate: prefabricated side slope plate (17) is in place using loop wheel machine lifting, and lower end is embedded in prefabricated side bar (24) simultaneously
Anchoring, installs permanent pull rod (11) and sets up interim strut (32) between upper end and L shape jacking (8)；
6) be laid with reinforced mesh: reinforced mesh (18) from bottom to top fix by pavement layer by layer, one end and T shape shearing-resistant member (9), the other end
It is shelved on prefabricated side slope plate；
7) lightweight earthen backfill: after the completion of reinforced mesh (18) is mated formation, region is enclosed in prefabricated side slope plate and former embankment excavation face
Inside pour foam concrete；
8) new top course is constructed: the lightweight earthen backfill completion new supercrust of after-pouring, pre-buried guardrail precast base (13) in base,
After the completion of maintenance construction, install guardrail (14)；
9) operation is afforested in the sash beam of outside: after the completion of above-mentioned construction, the interior soil moved in improve the original grass planting of sash beam (19) on the outside.
2. construction method according to claim 1, it is characterised in that described T shape shearing-resistant member (9) surface is with holes, by
Installation soil nailing (5) is fixed with former embankment excavation face in the preformed hole of top surface and side, and neighbouring T shape shearing-resistant member (9) passes through
The tongue and groove of lap-joint's setting is engaged, and integral using all T-type shearing-resistant members (9) are connected through diagonal bar (27).
3. construction method according to claim 1, it is characterised in that the sash beam (30) is cast-in-situ steel reinforced concrete
Structure, and sash beam (30) is reserved with inverted T-shaped groove at new embankment slope foot end.
4. construction method according to claim 1, it is characterised in that the prefabricated side bar (24) is equipped with oblique rim of a cup, tiltedly
It is expansion type rim of a cup to rim of a cup top, the pre-buried connecting screw in expansion type rim of a cup bottom reserves drainage channel in prefabricated side bar, prefabricated
Side bar bottom is equipped with T shape linkage section.
5. construction method according to claim 1, it is characterised in that prefabricated side slope plate (17) bottom is equipped with wing plate
(35), screw hole is reserved on wing plate (35), prefabricated side slope plate (17) backfill side is uniformly arranged reinforced mesh and shelves plate (21) and interior
Side stringer (15), other side setting outside sash beam (19).
6. construction method according to claim 1, it is characterised in that described jacking (8) the L-shaped structure, the default length in side
Silk braid pipe (7), jacking (8) pass through screw rod and lower part T shape shearing-resistant member (9) anchor connection.
7. construction method according to claim 1, it is characterised in that be embedded with shield in the prefabricated guardrail base (13)
Column pedestal connecting screw (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710457274.7A CN107254817B (en) | 2017-06-16 | 2017-06-16 | Construction method based on assembled template new and old roadbed light soil splicing widened structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710457274.7A CN107254817B (en) | 2017-06-16 | 2017-06-16 | Construction method based on assembled template new and old roadbed light soil splicing widened structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107254817A CN107254817A (en) | 2017-10-17 |
| CN107254817B true CN107254817B (en) | 2019-03-19 |
Family
ID=60024699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710457274.7A Active CN107254817B (en) | 2017-06-16 | 2017-06-16 | Construction method based on assembled template new and old roadbed light soil splicing widened structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107254817B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277713B (en) * | 2018-01-25 | 2020-11-24 | 五河县智凯环保科技有限公司 | Roadbed laying structure for highway extension and construction method |
| CN108589747A (en) * | 2018-06-07 | 2018-09-28 | 杭州昂创科技有限公司 | EPS light road banks are widened in conjunction with plant biological bag protective slope structure and construction method |
| CN109306707B (en) * | 2018-11-13 | 2021-01-01 | 南昌城建集团有限公司 | Old road widening structure and construction method |
| CN109736163B (en) * | 2019-01-17 | 2021-03-19 | 安徽省公路桥梁工程有限公司 | Embankment widening longitudinal joint treatment structure and construction method |
| CN110042716B (en) * | 2019-04-30 | 2021-09-17 | 杭州悦为科技有限公司 | Widening construction method for high-fill roadbed with foamed light soil |
| CN110055844A (en) * | 2019-05-06 | 2019-07-26 | 重庆建工市政交通工程有限责任公司 | Bubble enrockment light soil assembled barricade is used for straight-arm widening of subgrade construction method |
| CN110904741B (en) * | 2019-12-17 | 2020-11-27 | 同济大学 | Composite structure for controlling uneven settlement of transition section of high-speed railway road bridge |
| CN110904740B (en) * | 2019-12-17 | 2020-11-27 | 同济大学 | Roadbed and method for controlling differential settlement of high-speed railway road and bridge transition section |
| CN110983891B (en) * | 2019-12-25 | 2021-10-26 | 长沙理工大学 | Highway reconstruction and expansion assembly type roadbed structure and construction method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2219321A1 (en) * | 1995-04-26 | 1996-11-14 | Jte, Inc. | System and method for widening a highway and supporting a sound wall |
| CN104278608A (en) * | 2013-07-05 | 2015-01-14 | 杭州华水市政工程有限公司 | Novel highway embankment widened structure and construction method |
-
2017
- 2017-06-16 CN CN201710457274.7A patent/CN107254817B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2219321A1 (en) * | 1995-04-26 | 1996-11-14 | Jte, Inc. | System and method for widening a highway and supporting a sound wall |
| CN104278608A (en) * | 2013-07-05 | 2015-01-14 | 杭州华水市政工程有限公司 | Novel highway embankment widened structure and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107254817A (en) | 2017-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107254817B (en) | Construction method based on assembled template new and old roadbed light soil splicing widened structure | |
| CN206887664U (en) | Widened structure is spliced based on assembled template new and old roadbed light soil | |
| WO2016058275A1 (en) | Underground steel-concrete structure pipeline with spiral composite reinforcement ring on inner wall thereof and manufacturing method thereof | |
| CN109750571B (en) | Road collapse emergency and permanent retaining integrated structure and construction method | |
| CN106835877B (en) | The construction method of roadbed widening structure | |
| CN206553851U (en) | roadbed widening structure | |
| CN108035379B (en) | Comprehensive pipe gallery and construction method thereof | |
| CN106049195A (en) | Method for strengthening subgrade basement of existing high speed railway line | |
| CN110004991A (en) | Underground structure anti-floating system and construction method based on raised type tangs plate | |
| CN112832079A (en) | Construction method of foamed light soil spliced wide-height highway embankment | |
| CN111188355A (en) | Super-gravity type anchorage shallow-buried foundation and construction method | |
| CN113308955B (en) | Construction method of cast-in-place concrete full-protection foam light soil wide-spliced embankment | |
| CN112681043B (en) | Roadbed splicing widening structure and construction method | |
| CN110106915A (en) | One kind exempts from that support is inverse to make underground engineering construction method and underground construction structure | |
| CN112012763B (en) | Construction method of double-layer primary support multi-arch tunnel structure | |
| CN109577121A (en) | A kind of assembled self-balancing channel design system and its rapid constructing method | |
| CN108589747A (en) | EPS light road banks are widened in conjunction with plant biological bag protective slope structure and construction method | |
| CN208293588U (en) | A kind of Cut Slopes of Expansive Soil reinforcement formula, which is changed, fills out compages | |
| CN108104158A (en) | A kind of assembled underground pipe gallery and assembled in situ method | |
| CN112575771B (en) | Environment-friendly construction method for vertical support system of reverse-acting underground engineering steel concrete with piles and columns | |
| CN114481734A (en) | Construction method of highway widened pile drainage type foam concrete light embankment | |
| CN207891909U (en) | A kind of corrugated steel pipe overlapping cross section structure | |
| CN208293589U (en) | A kind of EPS light road bank is widened in conjunction with plant biological bag protective slope structure | |
| CN106283973B (en) | Medium-and low-speed maglev traffic engineering two-wire excavation location independence pier stud type support rail beam transition section structure | |
| CN112195952B (en) | Soft foundation hangar and connecting road connecting structure and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 212011 No. 300 Guantangqiao Road, Runzhou District, Zhenjiang City, Jiangsu Province Applicant after: Jiangsu Zhenjiang Road and Bridge Engineering Co., Ltd. Address before: 212004 No. 69 Nanshan Road, Zhenjiang City, Jiangsu Province Applicant before: Jiangsu Zhenjiang Road & Bridge Engineering Corporation |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |