CN107245912B - A kind of Foam lightweight soil railway bed structure and engineering method - Google Patents
A kind of Foam lightweight soil railway bed structure and engineering method Download PDFInfo
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- CN107245912B CN107245912B CN201710533817.9A CN201710533817A CN107245912B CN 107245912 B CN107245912 B CN 107245912B CN 201710533817 A CN201710533817 A CN 201710533817A CN 107245912 B CN107245912 B CN 107245912B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
- E01B2/006—Deep foundation of tracks
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/08—Deep or vertical foundation
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Abstract
The present invention relates to a kind of Foam lightweight soil railway bed structure and engineering methods.It is built with autoclave aerated concrete building block into frame in road structure in the present invention, and pours Foam lightweight soil in the frame；Wherein frame uses density 400-500kg/m3Autoclave aerated concrete building block is built, and light soil roadbed uses wet density for 550-600kg/m to roadbed at the middle and upper levels3Foam lightweight soil pour, lower layer's light soil roadbed use wet density 500-550kg/m3Foam lightweight soil pours, road structure in the present invention is more shorter than conventional roadbed filling construction period, save merely pour light soil advantage while, roadbed than being poured using light soil merely has higher bearing strength, the performance of each material itself can be given full play in this way, and maintains good load-carrying properties, can reduce roadbed later period disease, the maintenance cost during operation is saved, railway bed is highly suitable for.
Description
Technical field
The invention belongs to railway subgrade works field, it is specifically related to a kind of Foam lightweight soil railway bed structure and work
Method.
Background technique
Often built in soft base during construction of railways roadbed and for guarantee even transition between route different structure object,
Changeover portion need to be often set, soft base and changeover portion once handle it is bad will generate disease, the principal element of disease is caused to engineering
It is that sedimentation and deformation is excessive, when filling using conventional fillers to roadbed, the reason for causing sedimentation and deformation excessive is except backfilling material
Outside the consolidation settlement of itself, the long-term receiving of subsoil soil additional load excessive in addition to self weight can also generate excessive sedimentation
Deformation；In order to reduce the settlement after construction of railway, China railways usually carry out consolidation process in implementation process, but railway is in reality
Show to be filled due to railway bed by shot material of rock and soil during the operation on border, under the action of the loads such as train
The diseases such as differential settlement still exist, and which increase the maintenance costs during railway operation, affect the ride comfort of railway
And comfort, or even threaten the operational safety of train.
In view of sections such as above-mentioned existing soft base, changeover portions, there are problems, the present invention such as road structure processing difficulty is big
People creates the present invention having practical value by continuous research, design, and after being studied sample repeatedly and being improved finally.
Summary of the invention
It is an object of the present invention to overcome the sections such as existing soft base, changeover portion, there are uneven under the action of vehicle load
The problem of the diseases such as sedimentation, and provides Foam lightweight soil railway bed structure, the technical problem to be solved is that overcome soft base and
The differential settlement in the sections such as changeover portion keeps route more smooth, more comfortably, has extraordinary effect in the stringent location of settlement Control
Fruit, thus more practical.
Another object of the present invention is to accelerate speed of application, the maintenance cost during railway operation is reduced, thus more
Add practical.
The object of the invention to solve the technical problems adopts the following technical solutions to realize.It proposes according to the present invention
A kind of Foam lightweight soil railway bed structure, be by autoclave aerated concrete building block build at various forms of frame knots
Structure, and light soil is poured in the frame structure, autoclave aerated concrete building block lightweight soil layer is formed, there is Multideck altogether
Pressing aero-concrete building block lightweight soil layer, the frame structure use density for 400-500kg/m3Autoclave aerated concrete building block,
The light soil density poured gradually increases from bottom to up.
A kind of Foam lightweight soil railway bed structure above-mentioned, wherein the form of the frame structure includes well shape, item
Shape, triangle.
Aforementioned a kind of Foam lightweight soil railway bed structure, wherein the longitudinal direction of the frame structure is being located at track plates just
Lower section.
Aforementioned a kind of Foam lightweight soil railway bed structure, wherein pouring light soil in the frame structure is that foam is light
Matter soil, the density that the light soil is located at upper layer is 550-600kg/m3, other layer of light soil density is 500-550kg/m3。
A kind of Foam lightweight soil railway bed structure above-mentioned, further includes metal mesh, and the metal mesh is arranged more
Between layer autoclave aerated concrete building block lightweight soil layer.
A kind of Foam lightweight soil railway bed structure above-mentioned, further includes bed course, the bed course making ground it
On, it is located under bottom autoclave aerated concrete building block lightweight soil layer, bed course bottom is laid with one layer of anti-seepage geotextile or painting
Smear antiseepage mortar.
A kind of Foam lightweight soil railway bed structure above-mentioned, further include geotechnical grid add layer of sand and anti-seepage geotextile or
Antiseepage sand bedding course adds layer of sand in roadbed top layer setting geotechnical grid, adds layer of sand lower part setting antiseepage soil in the geotechnical grid
Work cloth or antiseepage sand bedding course or anti-seepage geotextile or antiseepage screed are arranged between the ground and the bed course.
A kind of Foam lightweight soil railway bed structure above-mentioned, further includes filler, steam pressurized mixed in the multilayer
Solidifying earth building blocks lightweight soil layer two sides making conventional fillers, tamp compression.
A kind of Foam lightweight soil railway based structures above-mentioned, wherein the autoclave aerated concrete building block lightweight soil layer is certainly
Lower and upper energy making multilayer, from bottom ground to surface layer, the width of each layer successively reduces from bottom to top, and surface layer width is most narrow.
A kind of Foam lightweight soil railway bed structure above-mentioned, further includes abutment or bridges and culverts, ground, surface layer of subgrade bed,
Described in the upper surface of ground making have the autoclave aerated concrete building block lightweight soil layer, the steam-pressing aero-concrete is built
Block lightweight soil layer from bottom to top can making multilayer, from bottom to surface layer, the width of each layer successively increases from bottom to top, surface layer width
It is most wide.
The object of the invention to solve the technical problems also uses following technical scheme to realize.It is proposed according to the present invention
A kind of engineering method of Foam lightweight soil railway bed structure, it is characterised in that: its step are as follows:
Step 1: prefabricated autoclave aerated concrete building block；
Step 2: the making bed course on ground；
Step 3: prefabricated autoclave aerated concrete building block and composition frame structure are built on bed course, in the frame knot
Light soil is poured in structure by several times, forms autoclave aerated concrete building block lightweight soil layer；
Step 4: after the completion of pouring, setting metal mesh on autoclave aerated concrete building block lightweight soil layer upper berth；
Step 5: follow procedures 4 making multilayer autoclave aerated concrete building block lightweight soil layer and metal mesh from bottom to top, most
The autoclave aerated concrete building block lightweight soil layer on upper layer is laid with or is not laid with metal mesh, is directly being located at the steam pressurized of top layer
Concrete segment lightweight soil layer upper berth build geotechnical grid add layer of sand or on metal mesh be laid with geotechnical grid add layer of sand, in geotechnological lattice
Room, which adds, is laid with anti-seepage geotextile or antiseepage sand bedding course below layer of sand；
Step 6: the two sides making filler of the multilayer autoclave aerated concrete building block lightweight soil layer simultaneously tamps pressure.
The engineering method of a kind of Foam lightweight soil railway bed structure above-mentioned, it is characterised in that be first laid with after the step 1
There are anti-seepage geotextile or antiseepage sand bedding course, then re-lay bed course, other steps are the same as claim 14.
The present invention has obvious advantages and beneficial effects compared with the existing technology.It at least has the advantage that
1, present invention compression strength in the case where equal densities is big；This is because the steaming of equal densities in the construction process
The compressive strength rate of pressing aero-concrete building block is big with the compression strength of density foam light soil, such as dry density 500kg/m3's
The compression strength of the high-class product of autoclave aerated concrete building block is greater than equal to 3.5Mpa, and dry density is 500kg/m3Light soil
Intensity be 2.8Mpa；In the light soil roadbed that autoclave aerated concrete building block is frame, autoclave aerated concrete building block group
At frame constitute main force structure, therefore its bearing strength is improved compared with light soil roadbed.
2, the present invention can be prefabricated using autoclave aerated concrete building block, therefore the quality of building block is ensured, scene
Using when can directly build, and its can replace template, therefore do not needed in work progress template assembly and disassembly, one can be built
It can start to pour after part frame, form cross construction in a small range, accelerate speed of application；
3, the autoclave aerated concrete building block that uses of the present invention for the roadbed of frame with all poured using light soil
Roadbed compared to not only increasing bearing strength and also reducing cost, reduce cost and be mainly reflected in steam-pressing aero-concrete
Building block price is low；In addition subgrade rating is improved in the present invention, therefore in practical applications can be to pouring light soil
Density carries out reduction appropriate, these factors all effectively reduce construction cost.
4, the present invention inherits the advantages of Foam lightweight soil pours roadbed, does not need large scale equipment, and when construction does not need to shake
It smashes, is not required to roll, overcome roadbed and roll compacting uncompacted problem during filling, especially overcome changeover portion and lean on
The conventional fillers of nearly Abutment are difficult to carry out the problem of rolling compacting.
5, present invention reduces the maintenance costs of railway, since it can effectively reduce the disease of railway bed, so
Its maintenance cost can be lowered during railway operation.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is second embodiment of the present invention composite structure sectional schematic diagram.
Fig. 2 is second embodiment of the present invention composite structure schematic top plan view figure.
Fig. 3 is third embodiment of the present invention composite structure sectional schematic diagram.
Fig. 4 is third embodiment of the present invention composite structure schematic top plan view figure.
Wherein:
1: ground 2: bed course
3: light soil 4: metal mesh
5: geotechnical grid adds layer of sand 6: autoclave aerated concrete building block
7: abutment 8: filler
9-1: the first anti-seepage geotextile or antiseepage sand bedding course
9-2: the second anti-seepage geotextile or antiseepage sand bedding course
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to its specific embodiment of a kind of Foam lightweight soil railway bed structure proposed according to the present invention,
Structure, method, step, feature and its effect, detailed description is as follows.
Embodiment 1
Refering to fig. 1 shown in-Fig. 4, a kind of Foam lightweight soil railway bed structure of first embodiment of the invention, is by steam pressure
Air-entrained concrete building block 6 is built into various forms of frame structures, and light soil 3 is poured in the frame structure, is formed
Autoclave aerated concrete building block lightweight soil layer, the present invention have multilayer autoclave aerated concrete building block lightweight soil layer.The frame knot
Structure uses density for 400-500kg/m3Autoclave aerated concrete building block 6,3 density of light soil poured gradually increase from bottom to up
Add.It is Foam lightweight soil that light soil 3 is poured in frame structure, and the density that the light soil is located at upper layer is 550-600kg/
m3, other layer of light soil density is 500-550kg/m3.The longitudinal direction of the frame structure is located at the underface of track plates.The frame knot
The form of structure is well shape or bar shaped or triangle.
A kind of Foam lightweight soil railway bed structure of the invention further includes that metal mesh 4, bed course 2, geotechnical grid add sand
Layer 5 and anti-seepage geotextile or antiseepage sand bedding course and filler 8.The metal mesh 4 is arranged in multilayer autoclave aerated concrete building block
Between lightweight soil layer.2 making of bed course on ground, be located at bottom autoclave aerated concrete building block lightweight soil layer it
Under.Roadbed top layer setting geotechnical grid add layer of sand 5, the geotechnical grid add 5 lower part of layer of sand setting anti-seepage geotextile or
Antiseepage sand bedding course or anti-seepage geotextile or antiseepage screed are arranged between the ground 1 and the bed course 2.Institute
The multilayer autoclave aerated concrete building block lightweight soil layer two sides making conventional fillers 8 stated, tamp compression.
A kind of engineering method of Foam lightweight soil railway bed structure of the invention, the specific steps are as follows:
Step 1: prefabricated autoclave aerated concrete building block 6；
Step 2: the making bed course 2 on ground 1；
Step 3: building prefabricated autoclave aerated concrete building block 6 on bed course 2 and form frame structure, in the frame
Light soil 3 is poured in structure by several times, forms autoclave aerated concrete building block lightweight soil layer；
Step 4: after the completion of pouring, setting metal mesh on autoclave aerated concrete building block lightweight soil layer upper berth；
Step 5: follow procedures 4 making multilayer autoclave aerated concrete building block lightweight soil layer and metal mesh 4 from bottom to top, most
The autoclave aerated concrete building block lightweight soil layer on upper layer is laid with or is not laid with metal mesh, is directly being located at the steam pressurized of top layer
Concrete segment lightweight soil layer upper berth build geotechnical grid add layer of sand 5 or on metal mesh be laid with geotechnical grid add layer of sand, in geotechnique
Cell compartment adds layer of sand 5 to be laid with anti-seepage geotextile or antiseepage sand bedding course below；
Step 6: the two sides making filler 8 of the multilayer autoclave aerated concrete building block lightweight soil layer simultaneously tamps pressure.
It is first equipped with anti-seepage geotextile or antiseepage sand bedding course after the step 1, then re-lays bed course.
Embodiment 2
Refering to fig. 1 and shown in Fig. 2, a kind of Foam lightweight soil railway bed knot of the best second embodiment embodiment of the present invention
Structure forms various forms of frame structures by autoclave aerated concrete building block 6, and the present embodiment is intersecting parallels frame structure, in institute
Light soil 3 is poured in the intersecting parallels frame structure stated, and is formed into autoclave aerated concrete building block lightweight soil layer, entire roadbed includes
Ground 1, bed course 2, light soil 3, metal mesh 4, geotechnical grid add layer of sand 5, autoclave aerated concrete building block 6, filler 8, antiseepage soil
Work cloth or antiseepage screed.As shown in Figure 1, autoclave aerated concrete building block lightweight soil layer from bottom to top can making multilayer, the bottom of from
Layer ground is to surface layer, and the width of each layer successively reduces from bottom to top, and surface layer width is most narrow.The first antiseepage is equipped on ground 1
Geotextiles or antiseepage screed 9-1.It is equipped with bed course 2 on first anti-seepage geotextile or antiseepage screed 9-1, the pad
Layer 2 is blotter, the blotter with a thickness of 10cm, roadbed height is 2.3m, in the range of the downward 1m in roadbed top surface
For upper layer autoclave aerated concrete building block lightweight soil layer, the upper layer autoclave aerated concrete building block lightweight soil layer use wet density for
550-600kg/m3Light soil and poured in two times, on upper layer, autoclave aerated concrete building block lightweight soil layer and steam pressure add
It is equipped with one layer of metal mesh 4 between gas concrete segment lightweight soil layer, prevents the light soil poured from crack occur, lower layer's steam pressure adds
Gas concrete segment lightweight soil layer uses wet density for 500-550kg/m3Light soil poured in two times, in entire roadbed
The dry density of autoclave aerated concrete building block 6 be all made of 400-500kg/m3, the autoclave aerated concrete building block 6 is divided to two
Layer is built, and first layer is roadbed bottom, and the second layer is roadbed upper layer；Light soil is Foam lightweight soil in the present embodiment,
By foaming agent, dilution, cement, water, early strength agent, harden through physical-chemical reaction according to the preparation process of Foam lightweight soil and
At.Positioned at the top of upper layer autoclave aerated concrete building block lightweight soil layer, the second anti-seepage geotextile or antiseepage screed 9-2 are set,
And it is arranged on the second anti-seepage geotextile or antiseepage screed 9-2 and adds layer of sand 5 with a thickness of the geotechnical grid of 10cm.
A kind of engineering method of Foam lightweight soil railway bed structure of the present embodiment is as follows:
1, the processing of ground 2 is first carried out from the lower to the upper.
2, after ground 2 has been handled, the leveling processing shown, and one layer of infiltration geotextiles are set, in infiltration geotextiles
The upper surface of place mat 10cm blotter, blotter is arranged 4% gradient from centre to both sides, and blotter, which is laid with, to be completed
Afterwards, first layer anti-seepage geotextile or antiseepage screed 9-1 are laid with.
3, it is built according to requirements such as design width, orbital position, frame structures using autoclave aerated concrete building block 6
It builds, carries out pouring for light soil 3 after masonry a part, and make the formation stream of filler 8 for building, pouring light soil 3 and two sides
Water operation, until reaching designed elevation, in lower layer's autoclave aerated concrete building block lightweight soil layer and upper layer steam-pressing aero-concrete
Metal mesh 4 is laid between building block lightweight soil layer, the layer surface that pours of top layer wants plastic covering film to carry out moisture-keeping maintaining.
4, the top of upper layer autoclave aerated concrete building block lightweight soil layer is laid with the second anti-seepage geotextile or antiseepage screed
9-2, and laying depth is that the geotechnical grid of 10cm adds layer of sand 5 on the second anti-seepage geotextile or antiseepage screed 9-2, thereon
Portion's structure is the same as conventional railway roadbed design.
5, it after the completion of overall structure, carries out brush slope and meets Railway Design requirement；And carry out slope protection project.
6, the gradient of roadbed side slope is 1:1.5 in this example, in Foam lightweight soil base course at interval of 2 meters of settings, one PVC
Pipe is drained, and anti-seepage geotextile is polyethylene or polyvinyl chloride geotextiles.
Embodiment 3
Refering to shown in Fig. 3 and Fig. 4, a kind of Foam lightweight soil railway bed structure of the best 3rd embodiment of the present invention, by
The composition of autoclave aerated concrete building block 6 forms various forms of frame structures, and the present embodiment is delta-type frame structure, in institute
It pours light soil 3 in the delta-type frame structure stated, forms autoclave aerated concrete building block lightweight soil layer, totally 3 layers, respectively
Upper layer autoclave aerated concrete building block lightweight soil layer, middle layer autoclave aerated concrete building block lightweight soil layer and lower layer are steam pressurized mixed
Solidifying earth building blocks lightweight soil layer.Entire roadbed includes the side wall and ground 1, bed course 2, upper layer autoclave aerated concrete building block of abutment 7
Lightweight soil layer, middle layer autoclave aerated concrete building block lightweight soil layer and lower layer's autoclave aerated concrete building block lightweight soil layer, metal
Net 4, geotechnical grid add layer of sand 5, filler 7, the first anti-seepage geotextile or antiseepage mortar 9-1 and the second anti-seepage geotextile and antiseepage sand
Starch 9-2.It is wherein respectively arranged with ground 1, the first anti-seepage geotextile or antiseepage mortar 9-1, bed course 2, upper layer steam pressure from the bottom to top
Air-entrained concrete building block lightweight soil layer, metal mesh 4, middle layer autoclave aerated concrete building block lightweight soil layer metal mesh 4, lower layer's steam pressure
Air-entrained concrete building block lightweight soil layer, the second anti-seepage geotextile or antiseepage mortar 9-2 and geotechnical grid add layer of sand 5.It is steam pressurized
It fills filler on the outside of concrete segment lightweight soil layer and tamps compression, wherein the surface layer to each layer steam-pressing aero-concrete
Building block lightweight soil layer is that width successively reduces from top to bottom.Other structures are the same as embodiment 1.One kind of the present embodiment 3 is light-weight foamed
The engineering method of unmanufactured iron road road structure is the same as embodiment 1.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (11)
1. a kind of Foam lightweight soil railway bed structure, which is characterized in that be to be built by autoclave aerated concrete building block at various
The frame structure of form, and light soil is poured in the frame structure, autoclave aerated concrete building block lightweight soil layer is formed,
There is multilayer autoclave aerated concrete building block lightweight soil layer altogether, which uses density for 400-500kg/m3It is steam pressurized
Concrete segment, the light soil density poured gradually increase from bottom to up, in multilayer autoclave aerated concrete building block lightweight soil layer
Between metal mesh is set.
2. a kind of Foam lightweight soil railway bed structure according to claim 1, which is characterized in that the frame structure
Form include well shape, bar shaped, triangle.
3. a kind of Foam lightweight soil railway bed structure according to claim 1, which is characterized in that the frame structure
Longitudinal underface for being located at track plates.
4. a kind of Foam lightweight soil railway bed structure according to claim 1, which is characterized in that in the frame structure
Inside pouring light soil is Foam lightweight soil, and the density that the light soil is located at upper layer is 550-600kg/m3, other layer of lightweight
Native density is 500-550kg/m3。
5. a kind of Foam lightweight soil railway bed structure according to claim 1, which is characterized in that it further include bed course, institute
The bed course making stated is located under bottom autoclave aerated concrete building block lightweight soil layer on ground.
6. a kind of Foam lightweight soil railway bed structure according to claim 5, which is characterized in that further include geotechnical grid
Add layer of sand and anti-seepage geotextile or antiseepage sand bedding course, adds layer of sand in roadbed top layer setting geotechnical grid, in the geotechnical grid
Add layer of sand lower part setting anti-seepage geotextile or antiseepage sand bedding course or anti-seepage geotextile or antiseepage screed that the ground is set
Between base and the bed course.
7. a kind of Foam lightweight soil railway bed structure according to claim 1, which is characterized in that it further include filler,
The multilayer autoclave aerated concrete building block lightweight soil layer two sides making conventional fillers, tamp compression.
8. a kind of Foam lightweight soil railway bed structure according to any one of claims 1-7, which is characterized in that institute
The autoclave aerated concrete building block lightweight soil layer stated from bottom to top can making multilayer, from bottom ground to surface layer, from bottom to top respectively
The width of layer successively reduces, and surface layer width is most narrow.
9. a kind of Foam lightweight soil railway bed structure according to claim 8, which is characterized in that its further include abutment or
Bridges and culverts, ground, surface layer of subgrade bed, wherein the upper surface of described ground making has the autoclave aerated concrete building block lightweight soil layer,
The autoclave aerated concrete building block lightweight soil layer from bottom to top can making multilayer, from bottom to surface layer, each layer from bottom to top
Width successively increase, surface layer width is most wide.
10. a kind of engineering method of the Foam lightweight soil railway bed structure as described in any one of claim 1-9, feature exist
In: its step are as follows:
Step 1: prefabricated autoclave aerated concrete building block；
Step 2: the making bed course on ground；
Step 3: prefabricated autoclave aerated concrete building block and composition frame structure are built on bed course, in the frame structure
Light soil is poured by several times, forms autoclave aerated concrete building block lightweight soil layer；
Step 4: after the completion of pouring, setting metal mesh on autoclave aerated concrete building block lightweight soil layer upper berth；
Step 5: follow procedures 4 making multilayer autoclave aerated concrete building block lightweight soil layer and metal mesh from bottom to top, top layer
Autoclave aerated concrete building block lightweight soil layer be laid with or be not laid with metal mesh, directly in the steam pressurized coagulation for being located at top layer
Earth building blocks lightweight soil layer upper berth, which builds geotechnical grid and adds layer of sand or be laid with geotechnical grid on metal mesh, adds layer of sand, in geotechnical grid plus
Anti-seepage geotextile or antiseepage sand bedding course are laid with below layer of sand；
Step 6: the two sides making filler of the multilayer autoclave aerated concrete building block lightweight soil layer simultaneously tamps pressure.
11. a kind of engineering method of Foam lightweight soil railway bed structure according to claim 10, which is characterized in that described
It is first equipped with anti-seepage geotextile or antiseepage sand bedding course after step 1, then re-lays bed course, other steps are the same as claim 10.
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| CN201710533817.9A CN107245912B (en) | 2017-07-03 | 2017-07-03 | A kind of Foam lightweight soil railway bed structure and engineering method |
| PCT/CN2018/089670 WO2019007176A1 (en) | 2017-07-03 | 2018-06-01 | Foam light soil railway subgrade structure and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107245912B (en) * | 2017-07-03 | 2019-04-30 | 中国铁道科学研究院铁道建筑研究所 | A kind of Foam lightweight soil railway bed structure and engineering method |
| CN109112969A (en) * | 2018-09-21 | 2019-01-01 | 中冶成都勘察研究总院有限公司 | A kind of foam concrete road and bridge filling construction method |
| CN110578290B (en) * | 2019-08-14 | 2024-04-05 | 山东高速工程检测有限公司 | Bridge abutment back backfill structure and construction method thereof |
| CN111400806B (en) * | 2020-03-25 | 2022-07-08 | 中铁二院工程集团有限责任公司 | Anti-bump wide roadbed structure next to ballastless railway, roadbed system and design method |
| CN113718572A (en) * | 2021-01-26 | 2021-11-30 | 绍兴文理学院 | Light two grey dirt road bed structures based on solid useless utilization |
| CN113338155A (en) * | 2021-06-18 | 2021-09-03 | 华东交通大学 | Roadbed for controlling differential settlement of transition section of highway bridge and construction method |
| CN113931026A (en) * | 2021-10-15 | 2022-01-14 | 山东双硕环境科技有限公司 | Integrally-interlocked dry-paving block light-load road and construction method |
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| CN204875406U (en) * | 2015-02-11 | 2015-12-16 | 中交第三公路工程局有限公司 | Vertical type foam light soil highway embankment |
| CN106758623A (en) * | 2016-11-30 | 2017-05-31 | 河海大学 | A kind of dam filling construction without the muscle lightweight earthen platform back of the body |
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| FR2747705B1 (en) * | 1996-04-18 | 1998-05-29 | Screg | LIGHT FILL |
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| CN204780497U (en) * | 2015-02-11 | 2015-11-18 | 中交第三公路工程局有限公司 | Foam light soil highway embankment |
| CN104746390B (en) * | 2015-03-13 | 2017-01-11 | 西南交通大学 | Foam lightweight concrete railroad bed structure |
| CN107245912B (en) * | 2017-07-03 | 2019-04-30 | 中国铁道科学研究院铁道建筑研究所 | A kind of Foam lightweight soil railway bed structure and engineering method |
| CN207567570U (en) * | 2017-07-03 | 2018-07-03 | 中国铁道科学研究院铁道建筑研究所 | A kind of Foam lightweight soil railway bed transition section structure |
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2018
- 2018-06-01 WO PCT/CN2018/089670 patent/WO2019007176A1/en active Application Filing
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| SU1710666A1 (en) * | 1989-11-21 | 1992-02-07 | Хабаровский институт инженеров железнодорожного транспорта | Earth structure |
| CN101003975A (en) * | 2007-02-06 | 2007-07-25 | 程卫国 | Retaining wall in lightweight, and construction method |
| CN203807904U (en) * | 2014-04-02 | 2014-09-03 | 广东省冶金建筑设计研究院 | Lightweight bridgehead roadbed of bubble-mixed lightweight soil and expandable polystyrene (EPS) combined block |
| CN104131502A (en) * | 2014-07-07 | 2014-11-05 | 广东盛瑞土建科技发展有限公司 | Construction method for widening road in rapid erection manner |
| CN204875406U (en) * | 2015-02-11 | 2015-12-16 | 中交第三公路工程局有限公司 | Vertical type foam light soil highway embankment |
| CN104775351A (en) * | 2015-04-22 | 2015-07-15 | 兰州铁路局 | Pile column, framework and spring combined bridge-road transition section structure separated from bridge abutment |
| CN106758623A (en) * | 2016-11-30 | 2017-05-31 | 河海大学 | A kind of dam filling construction without the muscle lightweight earthen platform back of the body |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019007176A1 (en) | 2019-01-10 |
| CN107245912A (en) | 2017-10-13 |
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