CN106120702A - High roadbed artificial foundation's back-filling in layers layering strong rammer composite reinforcement method - Google Patents
High roadbed artificial foundation's back-filling in layers layering strong rammer composite reinforcement method Download PDFInfo
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- CN106120702A CN106120702A CN201610775625.4A CN201610775625A CN106120702A CN 106120702 A CN106120702 A CN 106120702A CN 201610775625 A CN201610775625 A CN 201610775625A CN 106120702 A CN106120702 A CN 106120702A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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Abstract
The invention belongs to high roadbed artificial foundation back-filling in layers technical field in architectural engineering, specifically a kind of high roadbed artificial foundation's back-filling in layers layering strong rammer composite reinforcement method.Specifically comprise the following steps that 1) clear table, 2) original ground processes, and 3) excavation and filling interface digs step and processes, and 4) back-filling in layers mode, 5) layering strong rammer.The present invention uses this technique to solve, and high roadbed artificial foundation's intractability is big, long construction period and the high difficult problem of settlement after construction requirement, and have that high treating effect, speed of application be fast and the advantage such as residual settlement is little, it is that high fill foundation compares successful treatment technology means at present.
Description
Technical field
The invention belongs to high roadbed artificial foundation back-filling in layers technical field in architectural engineering, specifically a kind of high roadbed people
Building site base back-filling in layers layering strong rammer composite reinforcement method.
Background technology
Backfill highly fill foundation more than 20m is typically referred to as high fill foundation, traditional native stone by engineering construction industry
Side's backfill reinforcement means and method for processing foundation, it is necessary to by the longer deadweight sedimentation time, exchange the whole of high fill foundation for
Body is stable, it is impossible to adapt to construction period and the requirement of fund period of investment return of engineering construction at present, and, traditional approach is for high roadbed
The backfill height of ground and consolidation effect aspect are all restricted.
Summary of the invention
The present invention is to solve the restriction that high fill foundation faces, it is provided that a kind of high roadbed artificial foundation's back-filling in layers layering
Strong rammer composite reinforcement method.
A kind of high roadbed artificial foundation's back-filling in layers layering strong rammer composite reinforcement method, is suitable for following ground: 1, by digging
The high roadbed artificial foundation that ditch earthwork balance is formed is filled out on mountain；2, the high roadbed artificial foundation of formation is backfilled by debit；
Specifically comprise the following steps that
1) clear table: before construction, carries out top layer vegetation, fertile soil etc. and is not suitable for material and carries out the original ground of high roadbed artificial foundation
Cleaning, cleaning is to qualified basal plane always.
2) original ground processes；According to prospecting report and design requirement, take into account wanting of foundation bearing capacity requirement and elastic modelling quantity
Ask, use the process means such as vibroroller cmpacting, impact-rolling, forced ramming reinforcing mode and composite foundation that original ground is processed,
Guarantee processes groundwork bearing capacity and elastic modelling quantity reaches the high roadbed artificial foundation requirement for original place base, if high roadbed slope
Outside of foot is for having free face along near slope toe or toe, it is impossible to when meeting foundation bearing capacity and stability requirement, uses antiskid
Stake and barricade process.
3) excavation and filling interface digs step and processes: for original ground natural grade suddenly when the 1:5, carries out original ground and digs at stylobate
Reason, excavates the table soil that original ground is loose, and making step depth-width ratio is 1:2, introversion inclined-plane 2%, and embankment can closely be engaged shape with excavation zone
Integral, the width of step and height layout parameter according to filling body strong rammer and backfill thickness determines, width is strong not less than 1-2 row
Ramming the distance of tamping point, height is a backfill layer thickness.
4) back-filling in layers mode: when high roadbed artificial foundation fills, if a point dried layer carries out forced ramming reinforcing；One backfill layer by
Some backfill subgrades are formed, and the thickness of backfill subgrade is by every subgrade 1.0m～1.5m；Backfill face is pressed cloth planning distance by
Dump truck discharging, bull-dozer flattens.
5) layering strong rammer: lift height than design strong rammer energy level effective reinforcement depth reduce 1m, with ensure each by force
Ram and reinforce pier body and can extend into bottom backfill layer, form the state that is mutually twisted, fully ensure that filling body globality, every layer
After strong rammer point is rammed into, carries out a full rammer on surface, carry out the reinforcing on loose top layer, reduce settlement after construction.
6) the 4th is repeated) step and the 5th) step, until completing the process work of whole high fill foundation.
Carrying out the 5th) step, strong rammer energy level during layering strong rammer is as follows with the relation of backfill thickness,
Carrying out the 5th) step, during layering strong rammer, no matter take the arrangement form of the form such as square or triangle, main tamping point
Spacing is close with the effective reinforcement depth of corresponding energy level, and the main grid spacing of 4000KN.m energy level is not more than 6m, 6000KN.m energy level
Main grid spacing is not more than 8m, the 8000KN.m main grid spacing of energy level, and to be not more than 8m, the 12000KN.m main grid spacing of energy level little
In 11m, to stagger in upper and lower two backfill layer strong rammer main tamping point positions, in order to upper strata backfill layer forced ramming reinforcing pier body and lower floor's backfill
Layer forms the most ratcheting state；The control standard that single-point ramming times and last two hits, is proposed by designing unit and through strong
Rammer test determines.
Carrying out the 5th) step, during layering strong rammer, according to high level more than 8000KN.m energy level and ultra high energy level strong rammer
Time, parameter designing uses square to layout, divides and complete for 2 times；Meanwhile, in the middle of main tamping point, insert a little as the 3rd time tamping point, energy
The more main tamping point of level reduces 1-2 energy level.
The present invention digs step, back-filling in layers, layering heavy tamping treatment etc. by using original ground basement process, excavation and filling interface
A series of reinforcement techniques, it is ensured that the stability in the large of high roadbed artificial foundation, safety, and improve constantly high roadbed artificially
The filled height (current filled height is more than hundred meters) of base so that high roadbed artificial foundation is before building site growing tension
Put, be conducive to using in the bare place region such as deserted mountain cheuch and remove mountain and fill out ditch mode and make ground.
Use back-filling in layers, layering strong tamping technology, by adjusting backfilling of earthwork parameter and the parameter of layering strong rammer, and carry out
Change combination, effectively reinforces high fill foundation so that consolidation effect, foundation bearing capacity and settlement after construction all can meet
Design requirement, and there is the features such as fast, efficient, safe and environmental protection.
By earthwork back-filling in layers and the technical combinations of strong rammer energy level, by adjusting different back-filling in layers parameters and difference
Strong rammer parameter, by effective engineering measure, principle can process the high roadbed of arbitrary height under current technical status artificial
Ground.
Use this technique to solve high roadbed artificial foundation's intractability is big, long construction period and settlement after construction requirement high
A difficult problem, and have that high treating effect, speed of application be fast and the advantage such as residual settlement is little, be high fill foundation at present the most successfully
Treatment technology means.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart；
Fig. 2 is excavation and filling interface structural representation；
Fig. 3 is that schematic diagram is looked squarely in the backfill of a backfill subgrade；
Fig. 4 is the earthwork landfill top view of a backfill subgrade；
Fig. 5 is that layering strong rammer is layouted schematic diagram；
1-strong rammer tamping point in figure, 2-back-filling in layers height, 3-excavation and filling interface, 4-mound, the ground after 5-leveling, 6-backfills Asia
Layer, next backfill layer strong rammer point of 7-, the upper backfill layer strong rammer point of 8-.
Detailed description of the invention
A kind of high roadbed artificial foundation's back-filling in layers layering strong rammer composite reinforcement method, is suitable for following ground: 1, by digging
The high roadbed artificial foundation that ditch earthwork balance is formed is filled out on mountain；2, the high roadbed artificial foundation of formation is backfilled by debit.
Specific implementation method:
1) filling body lift height and strong rammer energy level, parameter designing are carried out.
2) vegetation and top layer according to high roadbed artificial foundation's construction area are not suitable for material thickness, use backacter
Or bull-dozer clears up, after cleaning, fertile soil appointed place is left concentratedly.
3) original ground processes: is distributed according to ground requirement for bearing capacity and special geology, carries out original ground basement process.
4) excavation and filling interface digs step: uses backacter to carry out digging step and processes.
5) back-filling in layers: by each subgrade thickness planned in advance, uses dump truck muck haulage, cloth soil, and bull-dozer flattens；Respectively
Subgrade is successively filled to strong rammer face absolute altitude.
6) layering strong rammer:
A. working procedure
A preparation of construction → time point rams setting-out, measurement place elevation → mono-time point rams place leveling, measurement after construction is rammed for → a time
Place elevation, two times points ram setting-out → bis-time point and ram place leveling after construction is rammed for → bis-times, measure place elevation → (extrahigh energy
Level strong rammer: insert for three times ram setting-out, measure place elevation → tri-time insert ram place leveling after construction is rammed for → tri-times, to measure place high
Journey, completely rammer datum line setting-out → completely ram leveling measurement place, place elevation after construction → full rammer
B forced ramming construction method
1 main tamping point and reinforcing ramming construction method
1) smooth construction site is cleared up.
2) first pass tamping point setting-out, uses white lime to spill rammer position contour line.
3) setting up level gauge, level gauge is located at outside 50 meters of tamping pit limit.
4) tamping point ground elevation is measured.
5) tamping machine is in place, makes hammer ram center be directed at tamping point position, adjusts armed lever angle to 65 degree after stable car.
6) peen elevation record before rammer is measured.
7) promote detacher, demarcate away from and lock detacher rope capacity.
8) promote hammer ram to open hammer ram freely fall to predetermined altitude, detacher, and put down suspension hook.
9) peen elevation is measured.
10) step 8) 9 is repeated), by ramming times and the control standard of design requirement, complete ramming of a tamping point.
11) telephone-moving carries out subsequent point and rams, until completing this all over whole tamping points.
12) with bull-dozer, tamping pit is filled and led up, and measure place elevation, mark the position of second time tamping point.
13) again by above-mentioned steps, gradually complete all to ram pass.
14) ultra high energy level strong rammer, repeat the above steps, complete to insert tamping point construction.
2 full ramming construction methods
1) smooth location.
2) measure place elevation, release and completely ram datum line.
3) crane is in place, and hammer ram is placed in benchmark line end.
4) the principle pointwise taking 1/4 according to hammering mutually is rammed, and rams several 1-2 at every and hits.
5) ram by row, complete full rammer and construct.
6) smooth location.
3 last layer constructions
Notice during surveying setting-out staggering in the strong rammer main tamping point position with following backfill layer, in order to upper strata backfill layer forced ramming reinforcing pier body
Backfill layer with lower floor and form the most ratcheting state.
Claims (4)
1. high roadbed artificial foundation's back-filling in layers layering strong rammer composite reinforcement method, it is characterised in that: applicable following ground:
1, the high roadbed artificial foundation of ditch earthwork balance formation is filled out by digging mountain；2, the high roadbed of formation is backfilled artificially by debit
Base；
Specifically comprise the following steps that
1) clear table: before construction, carries out top layer vegetation, fertile soil etc. and is not suitable for material and carries out the original ground of high roadbed artificial foundation
Cleaning, cleaning is to qualified basal plane always；
2) original ground processes；According to prospecting report and design requirement, take into account the requirement of foundation bearing capacity requirement and elastic modelling quantity, adopt
By process means such as vibroroller cmpacting, impact-rolling, forced ramming reinforcing mode and composite foundations, original ground is processed, it is ensured that place
Reason groundwork bearing capacity and elastic modelling quantity reach the high roadbed artificial foundation requirement for original place base, if outside high roadbed toe
For having free face along near slope toe or toe, it is impossible to when meeting foundation bearing capacity and stability requirement, use friction pile and gear
Wall processes；
3) excavation and filling interface digs step and processes: for original ground natural grade suddenly when the 1:5, carries out original ground and digs stylobate and process,
Excavating the table soil that original ground is loose, making step depth-width ratio is 1:2, introversion inclined-plane 2%, and embankment can closely be engaged formation with excavation zone
Integrally, the width of step and height according to filling body strong rammer layout parameter and backfill thickness determine, width not less than 1-2 arrange strong rammer
The distance of tamping point, height is a backfill layer thickness；
4) back-filling in layers mode: when high roadbed artificial foundation fills, if a point dried layer carries out forced ramming reinforcing；One backfill layer is by some
Backfill subgrade is formed, and the thickness of backfill subgrade is by every subgrade 1.0m～1.5m；Backfill face is pressed cloth planning distance by self-unloading
Automobile discharging, bull-dozer flattens；
5) layering strong rammer: lift height reduces 1m than the effective reinforcement depth of design strong rammer energy level, to ensure that each strong rammer adds
Gu pier body can extend into bottom backfill layer, form the state being mutually twisted, fully ensure that filling body globality, every layer of strong rammer
After point is rammed into, carries out a full rammer on surface, carry out the reinforcing on loose top layer, reduce settlement after construction；
6) the 4th is repeated) step and the 5th) step, until completing the process work of whole high fill foundation.
High roadbed artificial foundation's back-filling in layers the most according to claim 1 layering strong rammer composite reinforcement method, its feature exists
In: carrying out the 5th) step, strong rammer energy level during layering strong rammer is as follows with the relation of backfill thickness,
。
High roadbed artificial foundation's back-filling in layers the most according to claim 2 layering strong rammer composite reinforcement method, its feature exists
In: carrying out the 5th) step, during layering strong rammer, no matter take the arrangement form of the form such as square or triangle, main tamping point
Spacing is close with the effective reinforcement depth of corresponding energy level, and the main grid spacing of 4000KN.m energy level is not more than 6m, 6000KN.m energy level
Main grid spacing is not more than 8m, the 8000KN.m main grid spacing of energy level, and to be not more than 8m, the 12000KN.m main grid spacing of energy level little
In 11m, to stagger in upper and lower two backfill layer strong rammer main tamping point positions, in order to upper strata backfill layer forced ramming reinforcing pier body and lower floor's backfill
Layer forms the most ratcheting state；The control standard that single-point ramming times and last two hits, is proposed by designing unit and through strong
Rammer test determines.
High roadbed artificial foundation's back-filling in layers the most according to claim 3 layering strong rammer composite reinforcement method, its feature exists
In: carrying out the 5th) step, during layering strong rammer, during according to high level more than 8000KN.m energy level and ultra high energy level strong rammer, ginseng
Number is designed with square and layouts, and divides and completes for 2 times；Meanwhile, in the middle of main tamping point, inserting a little as the 3rd time tamping point, energy level is more main
Tamping point reduces 1-2 energy level.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884442A (en) * | 2017-04-25 | 2017-06-23 | 西安理工大学 | A kind of implementation of cheuch shape high fill foundation multi- scenarios method monitoring system |
| CN109706879A (en) * | 2019-01-09 | 2019-05-03 | 武汉一冶建筑安装工程有限责任公司 | Rainy season Airport in Mountain Region road base and the clear table method of highway subgrade |
| CN109797730A (en) * | 2019-01-29 | 2019-05-24 | 中国机械设备工程股份有限公司 | Ground heddle combined pressure reality dam filling construction is made in a kind of Gullied Rolling Loess Region embankment |
| CN109972635A (en) * | 2019-02-26 | 2019-07-05 | 武汉一冶建筑安装工程有限责任公司 | Side slope pastes high roadbed quality in slope and controls construction method |
| CN110318385A (en) * | 2019-06-25 | 2019-10-11 | 青岛即城市政园林工程有限公司 | A kind of weak subgrade forced ramming construction method |
| CN111622202A (en) * | 2020-05-19 | 2020-09-04 | 民航机场规划设计研究总院有限公司 | Method for filling and detecting boulder by dynamic compaction |
| CN113565564A (en) * | 2020-04-28 | 2021-10-29 | 山西机械化建设集团有限公司 | Open pit and full-collapse goaf layered backfill dynamic compaction treatment method |
| CN114411684A (en) * | 2022-01-06 | 2022-04-29 | 西北工业大学 | Dynamic compaction reinforcement optimization technology for high-fill filling and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11181751A (en) * | 1997-12-17 | 1999-07-06 | Taihei Kogyo Co Ltd | Method for reinforcing soft ground using slag |
| JP2002105942A (en) * | 2000-10-03 | 2002-04-10 | Nippon Kaikou Kk | Static compacting construction method of pile and its device |
| CN101349052A (en) * | 2008-09-09 | 2009-01-21 | 建研地基基础工程有限责任公司 | Saline soil area combined drain system and combined water drain forced ramming foundation treating method thereof |
| CN105160057A (en) * | 2015-07-08 | 2015-12-16 | 中北大学 | Method for determining optimal moisture content of filling soil in same energy level according to compaction-settlement ratio |
-
2016
- 2016-08-31 CN CN201610775625.4A patent/CN106120702B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11181751A (en) * | 1997-12-17 | 1999-07-06 | Taihei Kogyo Co Ltd | Method for reinforcing soft ground using slag |
| JP2002105942A (en) * | 2000-10-03 | 2002-04-10 | Nippon Kaikou Kk | Static compacting construction method of pile and its device |
| CN101349052A (en) * | 2008-09-09 | 2009-01-21 | 建研地基基础工程有限责任公司 | Saline soil area combined drain system and combined water drain forced ramming foundation treating method thereof |
| CN105160057A (en) * | 2015-07-08 | 2015-12-16 | 中北大学 | Method for determining optimal moisture content of filling soil in same energy level according to compaction-settlement ratio |
Non-Patent Citations (1)
| Title |
|---|
| 杨印旺: "强夯法在黄土地区某高填方工程中的应用", 《施工技术》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884442A (en) * | 2017-04-25 | 2017-06-23 | 西安理工大学 | A kind of implementation of cheuch shape high fill foundation multi- scenarios method monitoring system |
| CN106884442B (en) * | 2017-04-25 | 2019-07-23 | 西安理工大学 | A kind of implementation method of cheuch shape high fill foundation multi- scenarios method monitoring system |
| CN109706879A (en) * | 2019-01-09 | 2019-05-03 | 武汉一冶建筑安装工程有限责任公司 | Rainy season Airport in Mountain Region road base and the clear table method of highway subgrade |
| CN109797730A (en) * | 2019-01-29 | 2019-05-24 | 中国机械设备工程股份有限公司 | Ground heddle combined pressure reality dam filling construction is made in a kind of Gullied Rolling Loess Region embankment |
| CN109972635A (en) * | 2019-02-26 | 2019-07-05 | 武汉一冶建筑安装工程有限责任公司 | Side slope pastes high roadbed quality in slope and controls construction method |
| CN110318385A (en) * | 2019-06-25 | 2019-10-11 | 青岛即城市政园林工程有限公司 | A kind of weak subgrade forced ramming construction method |
| CN113565564A (en) * | 2020-04-28 | 2021-10-29 | 山西机械化建设集团有限公司 | Open pit and full-collapse goaf layered backfill dynamic compaction treatment method |
| CN111622202A (en) * | 2020-05-19 | 2020-09-04 | 民航机场规划设计研究总院有限公司 | Method for filling and detecting boulder by dynamic compaction |
| CN114411684A (en) * | 2022-01-06 | 2022-04-29 | 西北工业大学 | Dynamic compaction reinforcement optimization technology for high-fill filling and construction method thereof |
| CN114411684B (en) * | 2022-01-06 | 2024-02-06 | 西北工业大学 | Dynamic compaction reinforcement construction method for high-fill filling |
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