CN208517917U - A kind of three-dimensional geogrid composite earthwork cloth encapsulation steel slag pile - Google Patents
A kind of three-dimensional geogrid composite earthwork cloth encapsulation steel slag pile Download PDFInfo
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- CN208517917U CN208517917U CN201820955412.4U CN201820955412U CN208517917U CN 208517917 U CN208517917 U CN 208517917U CN 201820955412 U CN201820955412 U CN 201820955412U CN 208517917 U CN208517917 U CN 208517917U
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Abstract
The utility model relates to reinforced soft soil grounds, more particularly to a kind of three-dimensional geogrid composite earthwork cloth encapsulates steel slag pile, three-dimensional geogrid layer including steel slag pile layer, for carrying out interlocking with steel slag, for impurity outside isolation pile and the geotextile layer for preventing the drainage channel in steel slag pile from being blocked by impurity；Above-mentioned three-dimensional geogrid layer and geotextile layer are tubular, and geotextile layer is fixedly installed on the outside of three-dimensional geogrid layer, and three-dimensional geogrid layer and geotextile layer form composite package cylinder；Above-mentioned composite package cylinder loads steel slag and forms pile body for loading steel slag.This steel slag pile forms organic whole outside itself excellent performance retaining in conjunction with above-mentioned encapsulation cylinder, the effective solution not high problem of foundation stabilization applicability in weak soil at present.
Description
Technical field
The utility model relates to reinforced soft soil grounds more particularly to a kind of three-dimensional geogrid composite earthwork cloth to encapsulate steel slag
Stake.
Background technique
The usual level of ground water in soft clay area is higher, and weak soil has thixotropy, and intensity is low, it is difficult to stable hole wall is formed, because
And it is not suitable for artificial digging pile and drilled pile to do basement process.Since weak soil infiltration coefficient is low, if with Squeezing Soil Pile reinforcing flexible foundation,
The excess pore water pressure abatement that it can be made to generate is slow, easily cause joint of precast piles to be pulled off, pile body sidesway and on gush, it is immersed tube bored
The accidents such as broken pile, necking down occur for stake.
Utility model content
The purpose of this utility model is to provide a kind of three-dimensional geogrid composite earthwork cloths to encapsulate steel slag pile, is existed with expectation
Solve the problems, such as that foundation stabilization applicability is not high in weak soil at present.
To achieve the goals above, the one aspect of the utility model provides a kind of three-dimensional geogrid composite earthwork cloth
Encapsulate steel slag pile, comprising:
Steel slag pile layer；
Three-dimensional geogrid layer, for carrying out interlocking with steel slag；
Geotextile layer；For impurity outside isolation pile and prevent the drainage channel in steel slag pile from being blocked by impurity；
Above-mentioned three-dimensional geogrid layer and geotextile layer are tubular, and geotextile layer is fixedly installed on three-dimensional geogrid layer
Outside, three-dimensional geogrid layer and geotextile layer form composite package cylinder；Above-mentioned composite package cylinder loads steel for loading steel slag
Slag forms pile body.Three-dimensional geogrid layer and steel slag carry out interlocking, carry power limit oxygen blast cyanidation with enhancing.Geotextile layer is outside
The setting of side further enhances oxygen blast cyanidation restriction ability, geotextile layer here simultaneously, while being also used for the outer impurity of isolation pile
With prevent the drainage channel in steel slag pile from being blocked by impurity.
Three-decker sequentially successively from inside to outside is set, have passed through multiple practice, using steel slag as pile body filler phase
Foundation stabilization in weak soil can be more preferably suitable for compared with other fillers such as metaling, concrete particle, sandstone filler, make this steel slag
Stake forms organic whole in conjunction with above-mentioned encapsulation cylinder outside itself excellent performance of reservation, utilizes the steel slag of the utility model
Stake, using corresponding construction method, the effective solution not high problem of foundation stabilization applicability in weak soil at present.It remains
The advantages of original steel slag pile cheap solid soil and to overcome it by using three-dimensional geogrid low in shearing strength
In the weak soil of 10kPa can not pile defect.
Further, the three-dimensional geogrid of above-mentioned three-dimensional geogrid layer is node availability >=90%, low strain dynamic
When radial drawing modulus >=300kN/m/0.5% three-dimensional geogrid.It, can be with using the three-dimensional geogrid of aforementioned parameters
Better conform to the contact and interlocking with steel slag pile.
Further, above-mentioned geotextiles are that the high of elongation 40%-100% extends geotextiles.Using elongation 40%-
100% geotextiles, to improve packaging effect enhancing oxygen blast cyanidation ability.
Further, steel slag minimum grain size > three-dimensional geogrid mesh maximum diameter of hole.
Further, above-mentioned filling steel slag is steel slag of the partial size in 10~20cm, with the three of the current stock size of correspondence
To TGXG, selects steel slag of the partial size in 10~20cm more appropriate, also more adapt to holding for current three-dimensional geogrid
Loading capability.
Further, above-mentioned geotextile layer inside and the outer side bonds of three-dimensional geogrid layer.It, will by way of bonding
Geotextile layer and three-dimensional geogrid layer are connected as entirety, facilitate subsequent construction and installation.
Further, having closely bonded outer layer grid layer on the outside of above-mentioned geotextile layer.
The other side of the utility model additionally provides a kind of steel slag pile construction method, comprising the following steps:
1) immersed tube is transferred to weak soil projected depth with vibroflotation equipment；
2) composite package cylinder is placed in immersed tube；
3) steel slag filler is filled into encapsulation cylinder, vibrate while carrying out tube drawing, forms pile body；
4) it vibrates while tube drawing is until immersed tube extracts stake holes, completion pile.
Pass through this method, quick, easy pile.
Particularly, composite package cylinder, step are as follows: by the three-dimensional geogrid layer of tubular are assembled before carrying out step 2)
Outside and tubular geotextile layer on the inside of carry out it is be bonded, formed composite package cylinder.
It can be with other than above-mentioned assembling composite package cylinder: composite package cylinder, step are assembled before carrying out step 2) are as follows:
It will recline on the inside of the geotextile layer of the outside of the geogrids layer of tubular and tubular, geotextiles sutured, keep geotextiles tight
Close package geogrids layer.
The utility model is described further with reference to the accompanying drawings and detailed description.The utility model is additional
Aspect and advantage will be set forth in part in the description, and partially will become apparent from the description below.Or it is practical by this
Novel practice is recognized.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to assist understanding to the utility model, provided in attached drawing
Content and its related explanation can be used for explaining the utility model in the present invention, but is not constituted to the utility model not
Work as restriction.
In the accompanying drawings:
Fig. 1 is the steel slag pile structural schematic diagram of embodiment one；
Fig. 2 is the steel slag pile construction procedure decomposition diagram of the utility model；
Fig. 3 is the steel slag pile structural schematic diagram of embodiment two；
Number in figure is successively are as follows: 1- three-dimensional geogrid layer, 2- geotextile layer, 3- steel slag pile layer, 4- outer layer grid layer.
Specific embodiment
Clear, complete explanation is carried out to the utility model with reference to the accompanying drawing.Those of ordinary skill in the art are being based on
The utility model will be realized in the case where these explanations.Before being illustrated in conjunction with attached drawing to the utility model, spy is needed
It is not pointed out that:
The technical solution provided in each section including following the description and technical characteristic in the utility model,
In the case where not conflicting, these technical solutions and technical characteristic be can be combined with each other.
In addition, the embodiments of the present invention being related in following the description are generally only the reality of one branch of the utility model
Example is applied, instead of all the embodiments.Therefore, based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, the model of the utility model protection all should belong to
It encloses.
About term in the utility model and unit.The specification and claims of the utility model and related part
In term " includes " and its any deformation, it is intended that cover and non-exclusive include.
Such as Fig. 1, embodiment one: a kind of steel slag pile, including the steel slag pile layer 3 for accommodating steel slag pile, this steel slag pile is also
Include:
Three-dimensional geogrid layer 1, for carrying out interlocking with steel slag；
Geotextile layer 2；
Above-mentioned three-dimensional geogrid layer 1 and geotextile layer 2 are tubular, and geotextile layer 2 is fixedly installed on three-dimensional geotechnique's lattice
Composite package cylinder is formed on the outside of grid layer 1, above-mentioned composite package cylinder loads steel slag and form pile body for loading steel slag.Here it loads
Steel slag be partial size 10~20cm steel slag.
A kind of steel slag pile, the foundation reinforcing structure low as low-carbon, project cost, then relatively well made up and added using Squeezing Soil Pile
Gu soft base defect.It using steel slag pile, can not only be vibrated by machinery come compacted pile peripheral earth, moreover it is possible to chemically using steel slag itself
Matter reacts that pore water pressure is accelerated to dissipate with water in soil.But since traditional steel slag pile is by compacted mode pile, if place
Weak soil or pole soft soil foundation are managed, steel slag pile stake Zhou Wufa provides enough confining pressures, thus is difficult to independent pile.In addition, the soil body
In fine grained possibly into pile body, cause pile body drainage channel to block, so that pore water pressure dissipation slows down, influence pile body carrying
Ability extends the soil solidifying time.
So carrying out cloth using the three-dimensional geogrid layer 1 being sequentially arranged from inside to outside, structure as geotextile layer 2
It sets, the steel slag particle for making three-dimensional geogrid and filling the pile body of steel slag carries out interlocking, forms the envelope to steel slag pile well
Dress package effect, promote the globality and rigidity of pile body, thus ensure its shearing strength lower than 10kPa weak soil in still at
Stake.Furthermore the setting of geotextiles can play the isolation fine grain effect of anti-filter weak soil, prevent the drainage channel quilt in steel slag pile
Fine grained blocking, both geotextiles and above-mentioned three-dimensional geogrid layer 1 constitute novel composite package cylinder, and energy operative constraint dissipates
Body stake is radially expanded deformation, further increases pile body bearing capacity and rigidity, ensures that draining is unobstructed.
In this way, set gradually three-decker from inside to outside, make this steel slag pile retain outside itself excellent performance with it is upper
The encapsulation cylinder stated combines and forms organic whole, using the steel slag pile of the utility model, using corresponding construction method, effectively
Solve the problems, such as that foundation stabilization applicability is not high in weak soil at present.
Present embodiment can further optimize, and the three-dimensional geogrid of above-mentioned three-dimensional geogrid layer 1 has for node
Effect property >=90%, radial drawing modulus >=300kN/m/0.5% three-dimensional geogrid when low strain dynamic.Using aforementioned parameters
Three-dimensional geogrid can better conform to contact and interlocking with steel slag pile.
The three-dimensional geogrid mesh form is equilateral triangle, higher compared to direction earthwork grille stability,
With bigger stretch modulus and higher durability, compared to other such as unidirectional grids or two-way grille is particularly suitable for and steel slag
It is used cooperatively, can preferably play the interlock action with steel slag particle.
Above-mentioned geotextiles are that the high of elongation 40%-100% extends geotextiles.Using the geotechnique of elongation 40%-100%
Cloth, to improve packaging effect enhancing oxygen blast cyanidation ability.
Steel slag minimum grain size > three-dimensional geogrid mesh maximum diameter of hole, in this way to prevent steel slag from leaking from three-dimensional geogrid
Out.
Above-mentioned 2 inside of geotextile layer and the outer side bonds of three-dimensional geogrid layer 1.By way of bonding, by geotextile layer 2
It is connected as entirety with three-dimensional geogrid layer 1, facilitates subsequent construction and installation.
Such as Fig. 1 and 2, steel slag pile construction method, comprising the following steps:
S1, the verticality for correcting immersed tube first, it is ensured that deviation is not more than 1%, keeps immersed tube bottom tip closure, then uses
Immersed tube is pressed into the projected depth of Soft Soil Layer by vibroflotation equipment；
S2, it will carry out be bonded on the inside of the outside of the three-dimensional geogrid layer 1 of tubular and the geotextile layer 2 of tubular, formed multiple
Encapsulation cylinder is closed, composite package cylinder is placed in immersed tube；
S3, steel slag filler is filled into encapsulation cylinder therewith, wherein mixture adds water to mix and stir by the agitated machine of design proportion, mixes
It must not be less than 1 minute with the time, if steel slag dosage is more, mixing time will be lengthened suitably；
S4, immersed tube bottom tip, vibration pipe-drawing are opened, until immersed tube extracts stake holes, pile telephone-moving.
Embodiment two: unlike embodiment one and two, having closely bonded outer layer grid layer 4 on the outside of geotextile layer 2, this
In the TGXG of outer layer grid layer can not be three-dimensional geogrid.Outer layer grid layer 4 is set not on the outside of geotextile layer 2
Merely to improve geotextiles and three-dimensional geogrid composition encapsulation firmness, also for improve outer layer grid layer 4,
It is firm in weak soil to improve the composite package for the composite package longitudinal rigidity that geotextile layer 2, three-dimensional geogrid layer 1 form
Degree.The relative position stabilization of geotextiles and three-dimensional geogrid can be played in this way, improve the stability of this composite package.
Here composite package cylinder can be the geotextile layer 2 by the outside of the three-dimensional geogrid layer 1 of tubular and tubular
Inside carries out bonding formation, is also possible to paste on the inside of the geotextile layer 2 of the outside of the three-dimensional geogrid layer 1 of tubular and tubular
It leans on, geotextiles is sutured, make geotextiles tight three-dimensional geogrid layer 1, form composite package cylinder.
The related content of the utility model is illustrated above.Those of ordinary skill in the art are being based on these explanations
In the case where will realize the utility model.Above content based on the utility model, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, the model of the utility model protection all should belong to
It encloses.
Claims (7)
1. a kind of three-dimensional geogrid composite earthwork cloth encapsulates steel slag pile characterized by comprising
Steel slag pile layer (3)；
Three-dimensional geogrid layer (1), for carrying out interlocking with steel slag；
Geotextile layer (2)；
The three-dimensional geogrid layer (1) and geotextile layer (2) are tubular, and geotextile layer (2) is fixedly installed on three-dimensional geotechnique
On the outside of grid layer (1), three-dimensional geogrid layer (1) and geotextile layer (2) form composite package cylinder；The composite package cylinder is used for
Steel slag is loaded, steel slag is loaded and forms pile body.
2. a kind of three-dimensional geogrid composite earthwork cloth as described in claim 1 encapsulates steel slag pile, which is characterized in that described three
It is node availability >=90% to the three-dimensional geogrid of geogrids layer (1), radial drawing modulus when low strain dynamic >=
The three-dimensional geogrid of 300kN/m/0.5%.
3. a kind of three-dimensional geogrid composite earthwork cloth as described in claim 1 encapsulates steel slag pile, which is characterized in that the soil
Work cloth is that the high of elongation 40%-100% extends geotextiles.
4. a kind of three-dimensional geogrid composite earthwork cloth as described in claim 1 encapsulates steel slag pile, which is characterized in that steel slag is most
Small particle > three-dimensional geogrid mesh maximum diameter of hole.
5. a kind of three-dimensional geogrid composite earthwork cloth as described in claim 1 encapsulates steel slag pile, which is characterized in that described to fill out
Steel loading slag is steel slag of the partial size in 10~20cm.
6. a kind of three-dimensional geogrid composite earthwork cloth as described in claim 1 encapsulates steel slag pile, which is characterized in that the soil
Work layer of cloth (2) inside and three-dimensional geogrid layer (1) outer side bonds.
7. a kind of three-dimensional geogrid composite earthwork cloth as described in claim 1 encapsulates steel slag pile, which is characterized in that the soil
Outer layer grid layer (4) have been closely bonded on the outside of work layer of cloth (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820955412.4U CN208517917U (en) | 2018-06-20 | 2018-06-20 | A kind of three-dimensional geogrid composite earthwork cloth encapsulation steel slag pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820955412.4U CN208517917U (en) | 2018-06-20 | 2018-06-20 | A kind of three-dimensional geogrid composite earthwork cloth encapsulation steel slag pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661038A (en) * | 2018-06-20 | 2018-10-16 | 西南交通大学 | A kind of three-dimensional geogrid composite earthwork cloth encapsulation steel slag pile and its construction method |
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2018
- 2018-06-20 CN CN201820955412.4U patent/CN208517917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661038A (en) * | 2018-06-20 | 2018-10-16 | 西南交通大学 | A kind of three-dimensional geogrid composite earthwork cloth encapsulation steel slag pile and its construction method |
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