CN110093936A - The isolated filling construction method of line side following formula railway station building roadbed side high roadbed - Google Patents
The isolated filling construction method of line side following formula railway station building roadbed side high roadbed Download PDFInfo
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- CN110093936A CN110093936A CN201910387271.XA CN201910387271A CN110093936A CN 110093936 A CN110093936 A CN 110093936A CN 201910387271 A CN201910387271 A CN 201910387271A CN 110093936 A CN110093936 A CN 110093936A
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- Prior art keywords
- roadbed
- following formula
- concrete
- railway station
- construction method
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- 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
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/12—Back-filling of foundation trenches or ditches
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The present invention relates to the backfill retaining wall foundation constructions of roadbed side high roadbed, the specially isolated filling construction method of line side following formula railway station building roadbed side high roadbed.This method takes isolation and safeguard measure to station exterior wall in construction, and construction finishes and need to remove quarantine measures, and fills husky processing.Using the isolated filling Construction Technique of line side following formula railway station building roadbed side high roadbed, eliminate the influence of high-fill roadbed and railroad train dynamic load to station main structure, optimize station structure design, reduce project cost, reduce station operation maintenance cost, efficiently solve the problems, such as railway station platform foundation settlement, economic and social benefit is significant.
Description
Technical field
The present invention relates to the backfill retaining wall foundation construction of roadbed side high roadbed, specially line side following formula railway station building roadbed side is high
The isolated filling construction method of embankment.
Background technique
Line side following formula railway station building refers to that station is located at the side of yard, and station first layer ground is lower than platform floor.Station
Basement side wall foundation pit backfill need to be first carried out when the main platform Retaining wall of roadbed side, retaining wall foundation design generally uses graded sand
Stone is backfilled, and layering is tamped, and the structure that high roadbed directly affects station to the lateral pressure that station exterior wall is applied designs
The load factor of consideration, the dynamic load of train is also that station structure design is in need of consideration heavy especially during railway operation
Point.After the resting period for requiring roadbed filling not to be preferably less than 6 months after the completion according to " Design of High-speed Railway specification ", is to guarantee backfill
Material settlement and flow meet track construction requirement, using graded sand and stone backfill the duration will not be able to satisfy specification in putting
Time requirement is set, while because the self weight of platform barricade is larger, being easy to cause sedimentation and deformation, and then influence track profession and subsequent profession
Construction.
Summary of the invention
In view of the above-mentioned problems, the present invention provides the line side following formula railway station building roadbed side isolated filling construction sides of high roadbed
Method.
The present invention adopts the following technical scheme that realization: line side following formula railway station building roadbed side high roadbed is isolated to be filled out
Construction method is built, is followed the steps below to implement:
(1) sundries in foundation pit should be cleared up before foundation pit backfill, it is ensured that foundation pit cleaning；
(2) falsework is set up towards the side of foundation pit on outer wall of basement, it is solid towards the side of foundation pit on falsework
Solid plate, the height of falsework are the thickness of each casting concrete；
(3) casting concrete in foundation pit pours the falsework height set up with a thickness of exterior wall side；
(4) reach people in initial set to the layer concrete, by falsework and form removable and one layer of position on exterior wall can be promoted to
Waiting concreting is set, by falsework and form removable and is promoted to upper one layer of position on exterior wall after concreting again
Concreting is waited, is so successively poured until casting concrete pours completion in foundation pit；
(5) after the completion of fill concrete pours, the husky processing of filling is done in gap between outer wall of basement and fill concrete.
The above-mentioned isolated filling construction method of line side following formula railway station building roadbed side high roadbed, each casting concrete
With a thickness of 0.5~1.0 m.
The above-mentioned isolated filling construction method of line side following formula railway station building roadbed side high roadbed divides long range foundation pit
Construction flowing water section divides storehouse operation.
The above-mentioned isolated filling construction method of line side following formula railway station building roadbed side high roadbed, concrete freely incline drop height
Degree must not exceed 2m, is poured when pouring height as more than 2m with string bucket or elephant trunk, prevents concrete disintegration.
The above-mentioned isolated filling construction method of line side following formula railway station building roadbed side high roadbed, in order to reduce concrete
The heat of hydration should improve concrete mix by measures such as adding coal ashes.
The above-mentioned isolated filling construction method of line side following formula railway station building roadbed side high roadbed, in concreting process
In uniformly put into clean piece stone material, reduce the heat of hydration of concrete while reducing engineering cost.
Using the isolated filling Construction Technique of line side following formula railway station building roadbed side high roadbed, eliminate high-fill roadbed and
Influence of the railroad train dynamic load to station main structure optimizes station structure design, reduces project cost, reduce station
Room operation maintenance cost, efficiently solves the problems, such as railway station platform foundation settlement, and economic and social benefit is significant.
Detailed description of the invention
Fig. 1, which is that line side following formula railway station building roadbed side high roadbed is isolated, fills schematic diagram.
In figure: 1- high roadbed concrete, 2- station exterior wall, 3- fill husky separation layer, 4- platform barricade.
Specific embodiment
The present invention using concrete crushing strength height, fast solidifying, and is moored using concrete substitution graded broken stone backfill
Loose smaller (generally 0.1~0.22) is used as retaining wall foundation high roadbed backfilling material, settles after upper portion pressurized and compression is perpendicular
Meet subgrade stability requirement to deformation.
It is flow regime before initial set when concreting, External Wall has lateral pressure, is converted into after concrete setting
Internal force, if keeping apart between high roadbed concrete and station exterior wall, the lateral pressure of high roadbed is not transmitted to outside station
Wall.Isolation and safeguard measure need to be taken when construction, construction finishes and need to remove quarantine measures, and fills husky processing.Technical requirements
Sandwich concrete is answered to pour, in the template of station exterior wall dismounting easy for installation, every layer pours 0.5~1.0 m of thickness.It is mixed to the layer
Solidifying soil reaches people in initial set, by form removable and can be promoted to the waiting concreting of previous step position.To long range foundation pit
Answer classifying rationally construction flowing water section point storehouse operation.
Using the external series gap reserved between high roadbed under railroad platform side and wire type railway station building roadbed side exterior wall, subtract naturally
The earthwork lateral pressure of few station side, plays the function of shock insulation to railway station building side wall wall.
Operation of the present invention main points
Sundries in foundation pit should be cleared up before foundation pit backfill, it is ensured that foundation pit cleaning.
Outer wall formwork of basement bracket should be noted that protection external wall waterproof protective layer when installing, must not destroy waterproof protective layer.
Installing structure type is detachable form.
Outer wall of basement height of baffle plate is the thickness of each casting concrete, pours thickness and is generally 0.5~1.0 m.
In order to reduce the heat of hydration of concrete, concrete mix should be improved by measures such as adding coal ashes.It can also be in concrete
Clean piece stone material is uniformly put into casting process, while reducing engineering cost.
Casting concrete should be carried out continuously, and layering is vibrated.The concrete drop height degree that freely inclines must not exceed 2m, pour height such as
It must take measures when more than 2m, with string bucket or elephant trunk etc., prevent concrete disintegration.Reinforce concrete curing, in order to ensure new
The concrete poured has suitable curing condition, prevents from generating crack due to drying shrinkage in early stage, after concreting, and
Shi Jinhang covering and heat insulating moisture-keeping maintaining.
Reach people in initial set to the layer concrete, by form removable and upper one layer of position can be promoted to concrete is waited to pour
It builds.Classifying rationally construction flowing water section point storehouse operation is answered to long range foundation pit.After the completion of backfill construction, outer wall of basement and backfill are mixed
The husky processing of filling is done in gap between solidifying soil.
Claims (6)
1. the isolated filling construction method of line side following formula railway station building roadbed side high roadbed, it is characterised in that real according to the following steps
It applies:
(1) sundries in foundation pit should be cleared up before foundation pit backfill, it is ensured that foundation pit cleaning；
(2) falsework is set up in outer wall of basement side, the fixed form on falsework, the height of falsework is each
The thickness of casting concrete；
(3) casting concrete in foundation pit pours the falsework height set up with a thickness of exterior wall side；
(4) reach people in initial set to the layer concrete, by falsework and form removable and upper one layer of position can be promoted to etc.
To concreting, by falsework and form removable and it is promoted to one layer of position after concreting again and waits coagulation
Soil pours, and so successively pours until casting concrete pours completion in foundation pit；
(5) after the completion of fill concrete pours, the husky processing of filling is done in gap between outer wall of basement and fill concrete.
2. the isolated filling construction method of line side following formula railway station building roadbed according to claim 1 side high roadbed, special
Sign be each casting concrete with a thickness of 0.5~1.0 m.
3. the isolated filling construction method of line side following formula railway station building roadbed according to claim 1 or 2 side high roadbed,
It is characterized in that dividing long range foundation pit construction flowing water section point storehouse operation.
4. the isolated filling construction method of line side following formula railway station building roadbed according to claim 1 or 2 side high roadbed,
It is characterized in that the concrete drop height degree that freely inclines must not exceed 2m, with bucket is gone here and there or elephant trunk pours when pouring height as more than 2m, prevents
Concrete disintegration.
5. the isolated filling construction method of line side following formula railway station building roadbed according to claim 1 or 2 side high roadbed,
It is characterized in that in concrete that adding coal ash improves match ratio.
6. the isolated filling construction method of line side following formula railway station building roadbed according to claim 1 or 2 side high roadbed,
It is characterized in that in concreting process uniformly putting into piece stone material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910387271.XA CN110093936A (en) | 2019-05-10 | 2019-05-10 | The isolated filling construction method of line side following formula railway station building roadbed side high roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910387271.XA CN110093936A (en) | 2019-05-10 | 2019-05-10 | The isolated filling construction method of line side following formula railway station building roadbed side high roadbed |
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| CN110093936A true CN110093936A (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910387271.XA Pending CN110093936A (en) | 2019-05-10 | 2019-05-10 | The isolated filling construction method of line side following formula railway station building roadbed side high roadbed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670436A (en) * | 2019-09-26 | 2020-01-10 | 华蓝设计（集团）有限公司 | Structure for preventing urban road subgrade from non-uniform settlement and construction method thereof |
| CN110761287A (en) * | 2019-10-25 | 2020-02-07 | 北京城建集团有限责任公司 | High-low span structure and construction method thereof |
| CN114606807A (en) * | 2022-04-18 | 2022-06-10 | 武汉铁路职业技术学院 | Vibration isolation structure for reducing railway vibration |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182202A (en) * | 2011-03-23 | 2011-09-14 | 平湖市科学技术局 | Closed constraint sand cushion shock isolation/absorption foundation of rural residential building and construction method thereof |
| CN108103871A (en) * | 2017-12-19 | 2018-06-01 | 浙江大学城市学院 | A kind of construction method of the roadbed foam concrete fill placement technique of neighbouring existing Subway Facilities |
-
2019
- 2019-05-10 CN CN201910387271.XA patent/CN110093936A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182202A (en) * | 2011-03-23 | 2011-09-14 | 平湖市科学技术局 | Closed constraint sand cushion shock isolation/absorption foundation of rural residential building and construction method thereof |
| CN108103871A (en) * | 2017-12-19 | 2018-06-01 | 浙江大学城市学院 | A kind of construction method of the roadbed foam concrete fill placement technique of neighbouring existing Subway Facilities |
Non-Patent Citations (2)
| Title |
|---|
| 刘莉萍等: "《土木工程施工与组织管理》", 31 March 2019, 合肥工业大学出版社 * |
| 朱沪生等: "《上海市轨道交通2号线（中山公园站-徐泾东站）工程设计》", 31 July 2011, 上海科学技术出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670436A (en) * | 2019-09-26 | 2020-01-10 | 华蓝设计（集团）有限公司 | Structure for preventing urban road subgrade from non-uniform settlement and construction method thereof |
| CN110761287A (en) * | 2019-10-25 | 2020-02-07 | 北京城建集团有限责任公司 | High-low span structure and construction method thereof |
| CN114606807A (en) * | 2022-04-18 | 2022-06-10 | 武汉铁路职业技术学院 | Vibration isolation structure for reducing railway vibration |
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Application publication date: 20190806 |