CN110241695A - A kind of gravelly soil superelevation fill foundation reinforcement means - Google Patents
A kind of gravelly soil superelevation fill foundation reinforcement means Download PDFInfo
- Publication number
- CN110241695A CN110241695A CN201910532308.3A CN201910532308A CN110241695A CN 110241695 A CN110241695 A CN 110241695A CN 201910532308 A CN201910532308 A CN 201910532308A CN 110241695 A CN110241695 A CN 110241695A
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- layer
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- impact
- fly ash
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
Abstract
The invention discloses a kind of gravelly soil superelevation fill foundation reinforcement means, this method are as follows: pass through cement fly ash gravel pile form compound foundation layer of constructing in bottom filling layer, the composite foundation layer that bottom is formed is undertaken to the load of top filling body, upper packing layers then use dynamic consolidation construction to form crust layer, realize the consolidation process of superelevation filling body.The composite foundation layer that the present invention is formed by gravelly soil filler between cement fly ash gravel pile and stake, can slow down the sedimentation and deformation of filling body itself, and top crust layer slows down the sedimentation and deformation of building load generation.Foundation treatment technology and construction technology are combined by this method, and method is practical, and treated, and foundation stabilization effect is obvious, easy for construction, securely and reliably.
Description
Technical field
The present invention relates to a kind of gravelly soil superelevation fill foundation reinforcement means.
Background technique
Southwest is mostly hill features, with the development need of economic construction, due to lacking smooth construction land only
It can be solved by digging the valley-fill mode in mountain.Rubble and clay for being formed using filler from mining blasting etc., lithology with limestone,
Based on dolomite.Some comparison and choices will form tens, even up to a hundred meters at the biggish region of hypsography, smooth location
Superelevation backfills ground filling body.In embankment engineering, the deformation of filling body and stability are particularly significant problems.If fill
Artificial inorganization throwing, so that filling body internal pore is larger, filler gradation is uneven.After the completion of embankment construction in self weight and
Lower rubble soil particle rearrangement is acted under upper load can generate biggish sedimentation and deformation, directly affect top industrial premises and
The normal use of civil buildings.Strong rammer process is mainly used at present for this kind of ground, but due to backfilling height of level mistake
High traditional processing method does not adapt to, certainly will will affect consolidation process effect.
Summary of the invention
The technical problem to be solved by the present invention is a kind of gravelly soil superelevation fill foundation reinforcement means is provided, to solve needle
To embankment body thickness 50 meters or more superelevation gravelly soil fill foundations consolidation process, to slow down due to consolidation process is ineffective
Caused by filling body settlement issues.
The technical scheme adopted by the invention is as follows: a kind of gravelly soil superelevation fill foundation reinforcement means, this method are as follows: by
The composite foundation layer that bottom is formed is undertaken top by construction cement fly ash gravel pile form compound foundation layer in bottom filling layer
The load of filling body, upper packing layers then use dynamic consolidation construction to form crust layer, realize the consolidation process of superelevation filling body, specifically
Steps are as follows:
Step 1: site clearing, the cultivated plant soil and sundries for removing embankment place are unfavorable for the stable surface soil layer of filling body；
Step 2: filler paving is filled out, and filler selects gravelly soil mixture, and wherein granular mass of the partial size greater than 2mm should be gross mass
30% ~ 50%, maximum particle diameter is less than 500mm, is filled out 1.5 meters using the every paving of impact-rolling and is compacted, paving completes bottom when being filled to 15m
Portion's packing layer, impact-rolling use 25KJ triangle impact-rolling machine, and control speed is 12Km/h, and every layer is rolled 15-25 times；
Step 3: cement fly ash gravel pile construction, measurement and positioning determines cement fly ash gravel pile position, by rectangular arrangement,
Stake diameter 500mm, stake spacing 3m, using end-bearing pile structure, length should reach lower part basement rock or steady soil, and form of construction work follows phase
Close technical standard requirement；
Step 4: filler paving in upper layer is filled out, and is continued with macadam-aggregate mix progress place Min layers and is filled out, impact-rolling compaction in layers is synchronous
Rapid two, until reaching designed elevation；
Step 5: dynamic consolidation construction is carried out to surface layer packing layer using 8000KN m energy level strong rammer, dynamic consolidation construction is twice of rammer, tamping point
Away from 4m, surface layer is made to form crust layer after the completion of strong rammer；
Step 6: being bulldozed place, carries out reinforcing using impact-rolling machine, completes filling body.
Beneficial effects of the present invention: compared with prior art, the present invention passes through rubble between cement fly ash gravel pile and stake
The composite foundation layer that native filler is formed, can slow down the sedimentation and deformation of filling body itself, top crust layer slows down building load
The sedimentation and deformation of generation.Foundation treatment technology and construction technology are combined by this method, and method is practical, and treated, and ground adds
Gu effect is obvious, easy for construction, securely and reliably.
Detailed description of the invention
Fig. 1 is construction process schematic diagram of the invention.
Specific embodiment
With reference to the accompanying drawing and the present invention is described further in specific embodiment.
Embodiment 1: as shown in Figure 1, a kind of gravelly soil superelevation fill foundation ruggedized construction, this method are as follows: by bottom
The composite foundation layer that bottom is formed is undertaken top embankment by construction cement fly ash gravel pile form compound foundation layer in packing layer
The load of body, upper packing layers then use dynamic consolidation construction to form crust layer, realize the consolidation process of superelevation filling body, specific steps
It is as follows:
Step 1: site clearing, the cultivated plant soil and sundries for removing embankment place are unfavorable for the stable surface soil layer of filling body；
Step 2: filler paving is filled out, and filler selects gravelly soil mixture, and wherein granular mass of the partial size greater than 2mm should be gross mass
30% ~ 50%, maximum particle diameter is less than 500mm, is filled out 1.5 meters using the every paving of impact-rolling and is compacted, paving completes bottom when being filled to 15m
Portion's packing layer, impact-rolling use 25KJ triangle impact-rolling machine, and control speed is 12Km/h, and every layer is rolled 15-25 times；
Step 3: cement fly ash gravel pile construction, measurement and positioning determines cement fly ash gravel pile position, by rectangular arrangement,
Stake diameter 500mm, stake spacing 3m, using end-bearing pile structure, length should reach lower part basement rock or steady soil, and form of construction work follows phase
Close technical standard requirement；
Step 4: filler paving in upper layer is filled out, and is continued with macadam-aggregate mix progress place Min layers and is filled out, impact-rolling compaction in layers is synchronous
Rapid two, until reaching designed elevation；
Step 5: dynamic consolidation construction is carried out to surface layer packing layer using 8000KN m energy level strong rammer, dynamic consolidation construction is twice of rammer, tamping point
Away from 4m, surface layer is made to form crust layer after the completion of strong rammer；
Step 6: being bulldozed place, carries out reinforcing using impact-rolling machine, completes filling body.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Within protection scope of the present invention, therefore, protection scope of the present invention should be based on the protection scope of the described claims lid.
Claims (1)
1. a kind of gravelly soil superelevation fill foundation reinforcement means, it is characterised in that: this method are as follows: by being applied in bottom filling layer
The composite foundation layer that bottom is formed is undertaken the load of top filling body by work cement fly ash gravel pile form compound foundation layer,
Upper packing layers then use dynamic consolidation construction to form crust layer, the specific steps are as follows:
Step 1: the cultivated plant soil and sundries of embankment place are removed in site clearing；
Step 2: filler paving is filled out, and filler selects gravelly soil mixture, and wherein granular mass of the partial size greater than 2mm should be gross mass
30% ~ 50%, maximum particle diameter is less than 500mm, is filled out 1.5 meters using the every paving of impact-rolling and is compacted, paving completes bottom when being filled to 15m
Portion's packing layer, impact-rolling use 25KJ triangle impact-rolling machine, and control speed is 12Km/h, and every layer is rolled 15-25 times；
Step 3: cement fly ash gravel pile construction, measurement and positioning determines cement fly ash gravel pile position, by rectangular arrangement,
Stake diameter 500mm, stake spacing 3m, using end-bearing pile structure, length should reach lower part basement rock or steady soil；
Step 4: filler paving in upper layer is filled out, and is continued with macadam-aggregate mix progress place Min layers and is filled out, impact-rolling compaction in layers is synchronous
Rapid two, until reaching designed elevation；
Step 5: dynamic consolidation construction is carried out to surface layer packing layer using 8000KNm energy level strong rammer, dynamic consolidation construction is twice of rammer, is rammed
Point makes surface layer form crust layer after the completion away from 4m, strong rammer；
Step 6: being bulldozed place, carries out reinforcing using impact-rolling machine, completes filling body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532308.3A CN110241695A (en) | 2019-06-19 | 2019-06-19 | A kind of gravelly soil superelevation fill foundation reinforcement means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532308.3A CN110241695A (en) | 2019-06-19 | 2019-06-19 | A kind of gravelly soil superelevation fill foundation reinforcement means |
Publications (1)
| Publication Number | Publication Date |
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| CN110241695A true CN110241695A (en) | 2019-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910532308.3A Pending CN110241695A (en) | 2019-06-19 | 2019-06-19 | A kind of gravelly soil superelevation fill foundation reinforcement means |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411525A (en) * | 2020-11-27 | 2021-02-26 | 贵州正业工程技术投资有限公司 | Construction method for dynamic compaction block stone stool filling composite foundation |
| CN114411467A (en) * | 2022-03-31 | 2022-04-29 | 山西机械化建设集团有限公司 | Construction method of high-liquid limit soil filler high-fill skeleton stress and drainage system |
| CN114809028A (en) * | 2022-04-07 | 2022-07-29 | 山东省公路桥梁建设集团有限公司 | Construction method of high-fill roadbed containing large-particle-size rock block backfill |
| CN115354539A (en) * | 2022-06-27 | 2022-11-18 | 山东高速舜通路桥工程有限公司 | Roadbed stone slag filling construction method |
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| CN107447597A (en) * | 2017-07-25 | 2017-12-08 | 中铁二院工程集团有限责任公司 | A kind of non-fragment orbit railway expensive soil cutting structure and construction method |
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2019
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| GB2243637B (en) * | 1990-04-30 | 1994-12-07 | Heng Beng Lam | Method of constructing an elevated roadway |
| CN1641112A (en) * | 2004-12-28 | 2005-07-20 | 王继忠 | Composite foundation construction method |
| CN101205714A (en) * | 2007-11-01 | 2008-06-25 | 席宁中 | Dynamic consolidation treating method for large rubble filled foundation |
| CN105019422A (en) * | 2015-06-04 | 2015-11-04 | 河海大学 | Foundation construction method for local solidification of topsoil and composite pile bearing |
| CN106835884A (en) * | 2017-01-02 | 2017-06-13 | 浙江泛华工程监理有限公司 | A kind of permanent roadbed construction method of highly filled road |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411525A (en) * | 2020-11-27 | 2021-02-26 | 贵州正业工程技术投资有限公司 | Construction method for dynamic compaction block stone stool filling composite foundation |
| CN114411467A (en) * | 2022-03-31 | 2022-04-29 | 山西机械化建设集团有限公司 | Construction method of high-liquid limit soil filler high-fill skeleton stress and drainage system |
| CN114809028A (en) * | 2022-04-07 | 2022-07-29 | 山东省公路桥梁建设集团有限公司 | Construction method of high-fill roadbed containing large-particle-size rock block backfill |
| CN115354539A (en) * | 2022-06-27 | 2022-11-18 | 山东高速舜通路桥工程有限公司 | Roadbed stone slag filling construction method |
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Application publication date: 20190917 |