CN106758559A - A kind of high-speed railway silt, flour sand embankment structure and construction method - Google Patents
A kind of high-speed railway silt, flour sand embankment structure and construction method Download PDFInfo
- Publication number
- CN106758559A CN106758559A CN201710022203.4A CN201710022203A CN106758559A CN 106758559 A CN106758559 A CN 106758559A CN 201710022203 A CN201710022203 A CN 201710022203A CN 106758559 A CN106758559 A CN 106758559A
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- China
- Prior art keywords
- silt
- flour sand
- embankment
- sand
- speed railway
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- 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.)
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Classifications
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
A kind of high-speed railway silt, flour sand embankment structure and construction method, fill difficult and stability difference the problem of compacting so that silt, flour sand can serve as high-speed railway embankment fabric, significantly save construction investment effectively to solve silt, flour sand.Embankment structure is set along the bathtub construction body of circuit Longitudinal extending on ground ground, and the bottom of bathtub construction body both sides has longitudinally spaced spilled water hole.In the bathtub construction body, blotter is filled in its bottom, composite water draining board is laid on blotter top, silt, flour sand filling body are filled above composite water draining board, composite geo-membrane is laid on silt, flour sand filling body top, at the top of composite geo-membrane, embankment surface structure is filled on medium coarse sand bed course medium coarse sand setting cushion.Longitudinally spaced in the silt, flour sand filling body, vertical layered setting stress lacing wire, the two ends of stress lacing wire form a fixed connection with the side wall of bathtub construction body.
Description
Technical field
The present invention relates to high-speed railway, more particularly to a kind of use silt, the engineering of flour sand Filled-up Express Railway Embankment.
Background technology
High-speed railway has numerous superiority, and it at home and abroad develops very rapid.Because high-speed railway is smoothed out to circuit
Property, comfortableness propose requirement very high, and when high-speed railway embankment is built, property, compacting criteria to filler have clearly
Requirement, usually require that carrying out embankment engineering using coarse-grained soil and conditioned soil filler fills, and the terrific use powder of clear stipulaties
Soil, flour sand, Extra-fine sand carry out embankment, and it is embankment noumenon engineering both to have made, and its reason is mainly silt, flour sand and Extra-fine sand and fills out
Build that compacting is difficult, stability is poor, deformation is big.The continuous expansion of region is built however as high-speed railway, some areas exist big
The silt of amount, flour sand and Extra-fine sand, but the modifying agent of good coarse grained soil filler and conditioned soil extremely lacks, and carries in this case
Go out using widely distributed silt, flour sand and Extra-fine sand Filled-up Express Railway Embankment engineering tool be of great significance with it is wide
Development prospect.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of high-speed railway silt, flour sand embankment structure, effectively to solve
Certainly silt, flour sand fill difficult and stability difference the problem of compacting so that silt, flour sand can serve as high-speed railway embankment bottom
Structure, significantly saves construction investment.
It is as follows using technical scheme that the present invention solves the technical problem：
A kind of high-speed railway silt of the invention, flour sand embankment structure, it is characterized in that：Along being set on ground ground
The bathtub construction body of road Longitudinal extending, the bottom of bathtub construction body both sides has longitudinally spaced spilled water hole；The bathtub construction
In vivo, blotter is filled in its bottom, composite water draining board is laid on blotter top, and silt, flour sand filling body are filled
Composite water draining board top, composite geo-membrane is laid on silt, flour sand filling body top, and medium coarse sand setting cushion is in composite geo-membrane
Top, embankment surface structure is filled on medium coarse sand bed course；It is longitudinally spaced, vertical layered in the silt, flour sand filling body
Stress lacing wire is set, and the two ends of stress lacing wire form a fixed connection with the side wall of bathtub construction body.
Another technical problem to be solved by this invention is to provide a kind of high-speed railway silt, flour sand embankment structure and constructs
Method, the method comprises the following steps：
1. levelling and grinding compacting Rock soil Foundation；
2. formwork erection pouring construction bathtub construction body, and spilled water hole is reserved in structural base, in stress lacing wire correspondence on the wall of side
The pre-buried connection reinforcing bar in position；
3. the placement in layers blotter in bathtub construction body；
4. composite water draining board is laid at the top of blotter；
5. silt, flour sand filling body are inserted in layering, and are layered laying stress lacing wire, stress lacing wire two ends and bathtub construction body
Reserved steel bar on the wall of side is fixedly connected；
6. continuously water is piled, and continue to silt, flour sand in the bathtub construction body that silt, flour sand are inserted at the top of body
Reach infiltration maximum density；
7. composite geo-membrane is laid at the top of silt, flour sand filling body；
8. medium coarse sand bed course is laid on composite geo-membrane；
9. the placement in layers embankment surface structure at the top of medium coarse sand bed course.
The beneficial effects of the invention are as follows using bathtub construction body as silt, the sidewise restraint structure of flour sand, being easy to powder
Inserting in soil, flour sand work progress and the implementation of densification of seeping water, and the silt after the completion of construction, flour sand filling body are provided
Sidewise restraint, makes it have non-deformability and stability very high, while having closing slope effect concurrently saves engineering land used；By
Water is filled at bathtub construction body top, and under the penetration effect of lasting water pressure and water, silt, flour sand easily reach optimal closely knit
Degree, solves the problems, such as that traditional silt, flour sand fill compacting difficulty, and efficiency high, quality are guaranteed, and water can be recycled；
Silt, flour sand can serve as high-speed railway embankment fabric, solve the problems, such as that coarse-grained soil high quality filler is not enough, accomplish roadbed
Filler is gathered materials on the spot, and can significantly save construction investment.
The features such as present invention has strong non-deformability, good stability, simple, easy to control the quality construction, investment reduction, has
Wide application value.
Brief description of the drawings
This specification includes following two width accompanying drawing：
Fig. 1 is a kind of high-speed railway silt of the invention, the sectional schematic diagram of flour sand embankment structure；
Fig. 2 is the enlarged drawing of A parts in Fig. 1.
Component name and corresponding mark are shown in figure：Bathtub construction body 1, spilled water hole 2, blotter 3, composite, water-drain
Plate 4, silt, flour sand filling body 5, stress lacing wire 6, composite geo-membrane 7, medium coarse sand bed course 8, embankment surface structure 9, ground ground
D。
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples：
Referring to Figures 1 and 2, a kind of high-speed railway silt of the invention, flour sand embankment structure are set on ground ground D
Along the bathtub construction body 1 of circuit Longitudinal extending, the bottom of the both sides of bathtub construction body 1 has longitudinally spaced spilled water hole 2.The groove
In shape structure 1, blotter 3 is filled in its bottom, composite water draining board 4 is laid on the top of blotter 3, and silt, flour sand are filled out
Building body 5 is filled in the top of composite water draining board 4, and composite geo-membrane 7 is laid on silt, the top of flour sand filling body 5, medium coarse sand bed course 8
The top of composite geo-membrane 7 is laid on, the placement in layers of embankment surface structure 9 is on medium coarse sand bed course 8.The silt, flour sand are filled out
Longitudinally spaced in building body 5, vertical layered setting stress lacing wire 6, the two ends of stress lacing wire 6 are formed with the side wall of bathtub construction body 1
It is fixedly connected.
Reference picture 1, the present invention, as silt, the sidewise restraint structure of flour sand, is easy to silt, powder using bathtub construction body 1
Inserting in sand work progress and the implementation of densification of seeping water, and the silt after the completion of construction, flour sand filling body 5 are provided laterally
Constraint, makes it have non-deformability and stability very high, while having closing slope effect concurrently saves engineering land used.Silt, flour sand
High-speed railway embankment fabric is can serve as, solves the problems, such as that coarse-grained soil high quality filler is not enough, accomplish roadbed filling on the spot
Materials, can significantly save construction investment.Water is filled by the top of bathtub construction body 1, in the infiltration of lasting water pressure and water
Under power effect, silt, flour sand is easily reached optimal packing, solve the problems, such as that traditional silt, flour sand fill compacting difficulty,
And efficiency high, quality are guaranteed, water can be recycled.Blotter is set in the bottom of bathtub construction body 1, is easy to the quick of water
Discharge, sets composite water draining board 4 to avoid silt, flour sand from being carried over being lost under being acted under the penetration of water.Stress lacing wire 6 can
For bathtub construction body 1 provides favourable pulling force and improves structural stress state, to save its construction investment, and silt, flour sand are filled out
Building body 5 gets reinforced action, can improve its stability.Using laying composite geo-membrane 7 avoid embankment surface structure 9 construct and
Coarse granule filler is pierced among bottom silt, flour sand filling body 5 under the railway dynamic loading of top, and medium coarse sand bed course 8 is then avoided
Foundation bed structure construction punctures composite geo-membrane 7, provides the force structure of high intensity for high-speed railway by embankment surface structure 9
Body.
The bathtub construction 1 is poured using armored concrete, and its thickness determines according to calculating, typically no less than 0.3m.Let out
Pvc pipe of the water hole 2 typically using a diameter of 100mm is pre-buried, and longitudinally disposed spacing is 2-4m, and the inner side of spilled water hole 2 uses permeable soil
Work cloth is wrapped up.
The blotter 3 sets thickness and is not less than 0.3m, and ballast grain sizes are generally no greater than 2cm.
The stress lacing wire 6 can use high strength steel strand or reinforcement fabrication, reserved on two ends and the side wall of bathtub construction body 1
Reinforcing bar is fixedly connected, its longitudinally disposed spacing can use 2-3m, and vertical spacing can use 1-2m.
The thickness of medium coarse sand bed course 8 is generally 0.1m.The embankment surface structure 9 sets thickness and is generally 1.5-3m,
It uses coarse granule filler placement in layers.
Reference picture 1, a kind of high-speed railway silt of the invention, the construction method of flour sand embankment structure, comprises the following steps：
1. levelling and grinding compacting Rock soil Foundation；
2. formwork erection pouring construction bathtub construction body 1, and spilled water hole 2 is preset in structural base, in stress lacing wire 6 pairs on the wall of side
Answer the pre-buried connection reinforcing bar in position；
3. in the bottom placement in layers blotter 3 of bathtub construction body 1；
4. in the top of blotter 3 laying composite water draining board 4；
5. silt, flour sand filling body 5 are inserted in layering, and are layered laying stress lacing wire 6, the two ends of stress lacing wire 6 and flute profile knot
Reserved steel bar on the side wall of structure body 1 is fixedly connected；
6. continuously water is piled, and continue to silt, powder in the bathtub construction body 1 that silt, flour sand are inserted on the top of body 5
Sand reaches infiltration maximum density；
7. in silt, the top of flour sand filling body 5 laying composite geo-membrane 7；
8. medium coarse sand bed course 8 is laid on composite geo-membrane 7；
9. in the top placement in layers embankment surface structure 9 of medium coarse sand bed course 8.
The above is explain through diagrams a kind of high-speed railway silt of the invention, flour sand embankment structure and its construction method
Some principles, be not intended to by the present invention be confined to shown in and described concrete structure and the construction method scope of application in, therefore
Every corresponding modification for being possible to be utilized and equivalent, belong to apllied the scope of the claims of the invention.
Claims (8)
1. a kind of high-speed railway silt, flour sand embankment are constructed, it is characterized in that：Set along circuit longitudinal direction on ground ground (D)
The bathtub construction body (1) of extension, the bottom of bathtub construction body (1) both sides has longitudinally spaced spilled water hole (2)；The flute profile knot
In structure body (1), blotter (3) is filled in its bottom, composite water draining board (4) is laid on blotter (3) top, silt, powder
Sand filling body (5) is filled in composite water draining board (4) top, and composite geo-membrane (7) is laid on silt, flour sand filling body (5) top,
Medium coarse sand bed course (8) is laid on composite geo-membrane (7) top, and foundation bed structure (9) placement in layers is on medium coarse sand bed course (8)；
It is longitudinally spaced in the silt, flour sand filling body (5), it is vertical layered setting stress lacing wire (6), the two ends of stress lacing wire (6) with
The side wall of bathtub construction body (1) forms a fixed connection.
2. a kind of high-speed railway silt as claimed in claim 1, flour sand embankment are constructed, it is characterized in that：The bathtub construction body
(1) poured using armored concrete, its thickness is not less than 0.3m.
3. a kind of high-speed railway silt as claimed in claim 1, flour sand embankment are constructed, it is characterized in that：The spilled water hole (2)
Longitudinally disposed spacing is 2-4m, and spilled water hole (2) inner side is using permeable geotextiles parcel.
4. a kind of high-speed railway silt as claimed in claim 1, flour sand embankment are constructed, it is characterized in that：The blotter (3)
Thickness is set and is not less than 0.3m, ballast grain sizes are not more than 2cm.
5. a kind of high-speed railway silt as claimed in claim 1, flour sand embankment are constructed, it is characterized in that：The stress lacing wire (6)
Using high strength steel strand or reinforcement fabrication, two ends are fixedly connected with the reserved steel bar on the wall of bathtub construction body (1) side, and its longitudinal direction sets
Spacing is put for 2-3m, vertical spacing is 1-2m.
6. a kind of high-speed railway silt as claimed in claim 1, flour sand embankment are constructed, it is characterized in that：Medium coarse sand bed course (8) is thick
It is 0.1m to spend.
7. a kind of high-speed railway silt as claimed in claim 1, flour sand embankment are constructed, it is characterized in that：The foundation bed structure (8)
Setting thickness is 2-3m, using coarse granule filler placement in layers.
8. the construction method that a kind of high-speed railway silt, flour sand embankment as described in claim 1 to 7 any one are constructed, including
Following steps：
1. railway embankment ground, levelling and grinding compacting；
2. formwork erection pouring construction bathtub construction body (1), and spilled water hole (2) is reserved in structural base, in stress lacing wire (6) on the wall of side
The pre-buried connection reinforcing bar of correspondence position；
3. the placement in layers blotter (3) in bathtub construction body (1)；
4. in blotter (3) top laying composite water draining board (4)；
5. silt, flour sand filling body (5) are inserted in layering, and are layered laying stress lacing wire (6), stress lacing wire (6) two ends and flute profile
Reserved steel bar on the wall of structure (1) side is fixedly connected；
6. continuously water is piled, and continue to silt, powder in the bathtub construction body (1) that silt, flour sand are inserted on body (5) top
Sand reaches infiltration maximum density；
7. in silt, flour sand filling body (5) top laying composite geo-membrane (7)；
8. medium coarse sand bed course (8) is laid on composite geo-membrane (7)；
9. in medium coarse sand bed course (8) top placement in layers foundation bed structure (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710022203.4A CN106758559B (en) | 2017-01-12 | 2017-01-12 | A kind of construction method of high-speed railway silt, flour sand embankment structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710022203.4A CN106758559B (en) | 2017-01-12 | 2017-01-12 | A kind of construction method of high-speed railway silt, flour sand embankment structure |
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| CN106758559A true CN106758559A (en) | 2017-05-31 |
| CN106758559B CN106758559B (en) | 2019-01-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118564A (en) * | 2017-12-01 | 2018-06-05 | 中铁二院工程集团有限责任公司 | A kind of pressure type box High Speed Railway Subgrade and construction method |
| CN109235155A (en) * | 2018-09-17 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Railway high-filled embankment ancient cooking vessel formula structure |
| CN114508012A (en) * | 2022-01-24 | 2022-05-17 | 浙江交工集团股份有限公司港航工程分公司 | Fine sand soil in-situ solidified roadbed and construction method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118564A (en) * | 2017-12-01 | 2018-06-05 | 中铁二院工程集团有限责任公司 | A kind of pressure type box High Speed Railway Subgrade and construction method |
| CN108118564B (en) * | 2017-12-01 | 2023-09-22 | 中铁二院工程集团有限责任公司 | Pressure type box type high-speed railway roadbed structure and construction method |
| CN109235155A (en) * | 2018-09-17 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Railway high-filled embankment ancient cooking vessel formula structure |
| CN109235155B (en) * | 2018-09-17 | 2024-01-05 | 中铁二院工程集团有限责任公司 | Tripod structure of railway high-filling embankment |
| CN114508012A (en) * | 2022-01-24 | 2022-05-17 | 浙江交工集团股份有限公司港航工程分公司 | Fine sand soil in-situ solidified roadbed and construction method thereof |
| CN114508012B (en) * | 2022-01-24 | 2024-10-22 | 浙江交工集团股份有限公司港航工程分公司 | Fine sand soil body on-site solidification roadbed and construction method thereof |
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|---|---|
| CN106758559B (en) | 2019-01-04 |
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