CN109797616A - A kind of water quenching ferronickel slag, which changes, doses muscle cushion layer structure and its construction method - Google Patents
A kind of water quenching ferronickel slag, which changes, doses muscle cushion layer structure and its construction method Download PDFInfo
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- CN109797616A CN109797616A CN201910154154.9A CN201910154154A CN109797616A CN 109797616 A CN109797616 A CN 109797616A CN 201910154154 A CN201910154154 A CN 201910154154A CN 109797616 A CN109797616 A CN 109797616A
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Abstract
The construction method for dosing muscle cushion layer structure is changed the invention discloses a kind of water quenching ferronickel slag.The reinforcement cushion structure is formed by being modified soil padding (1), Fill Reinforced With Geogrids layer (2) and metalling (3) three parts.The construction method, compared with traditional mats construction method, facility is rolled without profession, it is filled using " industrial residue " water quenching ferronickel slag, with the significant advantages such as high financial profit, construction is simple, the feature of environmental protection be good, it is particularly suitable for the Soft Ground of the short embankment in the Deep Thick Soft Ground distributed area in the idle accumulation area of water quenching ferronickel slag.
Description
Technical field
It is changed the present invention relates to one kind and fills out rein- forced cushion structure, especially relate to a kind of water quenching ferronickel slag and change dose muscle
The construction method of cushion layer structure.
Background technique
Since 2012, for the average annual discharge amount of China's water quenching ferronickel slag more than 30,000,000 tons, a large amount of water quenching ferronickel slags are usual
Processing or deep-sea landfill are piled up, not only cannot effectively be comprehensively utilized, soil, threatening environment safety are also taken up.Another party
Face, from the point of view of convenient transportation, many josephinite manufacturers all build the sea front of coastal area in.And littoral area
The creek pool largely is distributed with, creek pool weak soil thickness is big, causes bigger difficulty to town road Soft Ground.Municipal administration road at present
Road handles frequently with the methods of cushion, packing sedimentation by throwing stones, deep level of processing the treatment measures middle-shallow layer of heavy layer soft soil foundation
Then using CFG, the methods of mixing pile and tubular pole.Since littoral area's road is typically designed to 5m short embankment below, use
Deep level of processing method is often at high cost, and owner is difficult to receive；And Methods of Shallow Treatment is used, by changing the viscosity filled out inexpensively
Soil is handled as bed course then due to level of ground water height, and usually under earth's surface within the scope of 1m, clayey soil liner is easily softened shape
At roadbed hidden danger, according to sandy and stony soil as bed course or using the processing method of packing sedimentation by throwing stones, because needs cushion thickness compared with
Greatly, it not only will cause treatment of soft foundation cost to increase, but also settlement of soft foundation can be caused big because sand coarse aggregate ratio is great, give subgrade settlement control
System brings difficulty.Therefore, study it is a kind of can using water quenching ferronickel slag progress town road Soft Ground new construction and its
Construction method, it can the waste residue discharged using ferronickel factory is solved waste residue and stacks bring environmental problem, also solves the problem that municipal road
The problem of road Soft Ground plays the role of killing two birds with one stone.The soil mechanics character of water quenching ferronickel slag is roughly equivalent to coarse sand
Great soil group, but since water quenching ferronickel solid impurity particle is sphaerulitic, lack bite force between particle, therefore, internal friction angle is less than thick
Sand.Directly adopt water quenching ferronickel slag as change filler construction soft soil foundation bed course existing for main problem be, when filling-up thickness compared with
Hour, bed course is prone to punching shear failure；When filling-up thickness is larger, then under the vertical Vehicle Load of roadbed, easily along side
Creep properties sidesway occurs for the bed course two sides little to restraining force, to cause the deformation failure of side slope of embankment.In addition, how to optimize
Earth structure designs economic and the water quenching ferronickel slag bed course of safety structure, how about quickly and economically carries out water quenching
Ferronickel slag bed course fills compacting, if successfully can carry out the soft soil roadbed place of littoral area's deep layer road using water quenching ferronickel slag bed course
The key controlled.
Summary of the invention
First technical problem to be solved by this invention is to develop one kind to make using water quenching ferronickel slag industrial waste
The cushion layer structure of the artificial hard shell laminar of deep soft soil foundation processing is carried out for replacing method.
Second technical problem to be solved by this invention is to provide the quick and economic water quenching ferronickel slag bed course of one kind
Fill the construction method of compacting.
In order to solve above-mentioned first technical problem, water quenching ferronickel slag provided by the invention, which changes, doses muscle cushion layer structure, packet
Include modified soil padding (1), Fill Reinforced With Geogrids layer (5) and metalling (6) three parts；The modification soil padding (1) be according to
Cement: clay: the ratio of the weight percent 10%:20%:70% of ferronickel slag is filled compacting with excavator scene mixing and is formed
's；The Fill Reinforced With Geogrids layer (5) by being to sink the water quenching ferronickel slag (3) that compacting construction method will fill by water to be compacted,
It is formed again by TGXG (2) anti-package.The whole of bed course is improved by the artificial crust layer that Fill Reinforced With Geogrids structure is formed
Body rigidity and lateral restriction, while the width and thickness of bed course can be reduced, save basement process cost.In addition, traditional sand
Stone bed course is since density ratio original place muck soil is relatively larger, and Water Quenching Slag bed course density is closer to original place muck soil, because
This is lower to the bearing capacity of bed course lower part soft soil foundation, and settling amount caused by additional stress is smaller, so that portion can also be reduced
Divide cushion thickness and width, achievees the purpose that further to save cost.
In order to solve above-mentioned second technical problem, the spherical structure that the present invention makes full use of water quenching ferronickel slag to have is easy to
The characteristic of vibration compacting under water replaces traditional vibrate using excavator by the way that the heavy compacting construction method of traditional water is transformed
Tool is realized with reasonable construction compaction process to the underwater vibration of Water Quenching Slag with mechanical work instead of manual work
Puddling is real, so that compaction rate be greatly improved, reduces water discharge time and electricity consumption, realizes in phreatic high
Strand creek pool thick-layer weak soil position is quickly compacted construct to water quenching ferronickel slag bed course economy, solves above-mentioned second technology
Problem.
Water quenching ferronickel slag proposed by the present invention changes the construction method for dosing muscle cushion layer structure, the specific steps of which are as follows:
(1), with ratio of slope 1:0.5, using bottom of foundation ditch width beyond the width for designing width of roadway 4m and no more than 5m's
Height unwrapping wire is symmetrically excavated soft soil foundation by roadbed middle line (12) to bottom of foundation ditch；
(2), the catch pit (15) of a bottom width 1m, top width 1.5m, depth 0.5m are excavated in one end of bottom of foundation ditch；
(3), the water in catch pit (15) is taken away by drainpipe (9) with immersible pump (8) dry, and controls underground water position and exist
Below foundation pit bottom surface；
(4), according to cement: clay: the ratio of the weight percent 10%:20%:70% of ferronickel slag excavator scene
The good Modified soil of mixing, and bed course position is inserted, reach overall thickness 40cm through two layers of compacting of excavator point and forms Modified soil pad
Layer (1)；
(5), it stands and is hardened for 24 hours to Modified soil, continue to cheat interior interim water level (10) control by step (3) in Modified soil face
Layer or less；
(6), add the length of 7m as single width length by modified soil padding (1) top surface width, excavate roadbed foundation pit by this
Length cuts TGXG divided by 5 gained width numbers；
(7), by single width TGXG, sequentially symmetrical laying and guarantees two width geotechnique's lattice in the top surface of modified soil padding (1)
The overlapping part length of grid is 1m, then its equalization is laid on modified soil padding (1), and redundance is fixed on the position for being higher by 1m
It sets；
(8), stop the draining of immersible pump (8), and immersible pump (8) moved to the top surface of the modification soil padding (1) hardened,
Catch pit (15) is tamped rapidly by step (4)；
(9), water quenching ferronickel slag void is layered in TGXG, virtual resurfacing thickness control is looked in 0.25m with excavator compacting
Flat, first water quenching ferronickel slag for forming first Fill Reinforced With Geogrids layer (5) fills layering (16)；
(10), it is filled in layering in first water quenching ferronickel slag of first Fill Reinforced With Geogrids layer, one layer of 0.25m of void paving
The water quenching ferronickel slag of thickness；
(11), pass through immersible pump (8) for water level control in the height away from water quenching ferronickel slag void roofing (14) following 0.2m
Within；
(12), back and forth vibrate rolling operation 3 times with crawler of excavator, and levelling using bucket simultaneously；
(13), back and forth vibrate rolling operation 1 time with crawler of excavator again, the crawler belt impression between observation back and forth is high
Degree, if this is highly greater than 1cm, then continues to roll, after being highly less than 1cm such as this, then using the water of douche detection lower part 20cm
It quenches the density of ferronickel slag compacted lift；
(14), continue back and forth vibrate rolling operation 1 time with crawler of excavator, while under being detected again using douche
The density of the water quenching ferronickel slag compacted lift of portion 20cm；
(15), the relative error for calculating the density of the water quenching ferronickel slag compacted lift measured twice, as the relative error is less than
5%, then it is considered as and meets compacting requirement, if the relative error is greater than 5%, then needs to continue to roll and detect, until detect twice
For relative error less than 5%, this completes second water quenching ferronickel slags to fill filling for layering (14)；
(16), empty paving 25cm thickness ferronickel slag is filled on layering (14) again in second water quenching ferronickel slag, stopped immersible pump (8)
Draining, when water level is increased to empty paving height 20cm or less, continuing to draw water keeps height of water level constant；
(17), step (10)~(15) are repeated, third is completed and the 4th water quenching ferronickel slag fills filling for layering；
(18), stop immersible pump (8) draining, and the TGXG anti-package for rapidly stretching out both ends is to compacted lift top surface, it is complete
At the construction of first Fill Reinforced With Geogrids layer (5)；
(19), add the length of 7m as single width length by first Fill Reinforced With Geogrids layer (5) top surface width, opened by this
It digs roadbed foundation pit length and cuts TGXG divided by 5 gained width numbers；
(20), the TGXG that second reinforced earth of step (7) progress fills layer is repeated to pave；
(21), step (10)~(15) are repeated, first water quenching ferronickel slag for completing second Fill Reinforced With Geogrids layer is filled out
Build filling for layering；
(22), second to the 4th water quenching nickel for completing second Fill Reinforced With Geogrids layer in step (20)~(22) is repeated
Scum fills filling for layering；
(23), step (18) are repeated, this completes the constructions of second Fill Reinforced With Geogrids layer；
(24), step (18)~(23) are repeated, the construction of third, the 4th Fill Reinforced With Geogrids layer is completed；
(25), TGXG is expired into paving Fill Reinforced With Geogrids layer top surface, then the height of empty paving metalling (6) exceeds ground
(13) 10cm is compacted with road roller, conventionally detects compactness, uses land leveller levelling after reaching requirement.
It is a kind of with water quenching ferronickel slag is mainly to fill out that a kind of water quenching ferronickel slag provided by the invention, which changes and fills out reinforcement structure,
The soft soil foundation bed course for building material fills out earth structure, takes full advantage of the spherical structure and density ratio sand stone layer of water quenching ferronickel slag
Low characteristic, and higher overall stiffness and lateral restriction are provided for water quenching ferronickel slag bed course by earth structure, from
And overcome the fault of construction of easy the generation punching shear failure and lateral sliding of water quenching ferronickel slag bed course；A kind of water provided by the invention
Ferronickel slag of quenching changes the construction method for filling out reinforcement structure, and the spherical structure for making full use of water quenching ferronickel slag to have is easy under water
The characteristic of vibration compacting replaces traditional tool that vibrates using excavator, uses by the way that the heavy compacting construction method of traditional water is transformed
Mechanical work is realized with reasonable construction compaction process to the underwater vibration compacting of Water Quenching Slag instead of manual work,
To which compaction rate be greatly improved, reduces water discharge time and electricity consumption, realize the strand creek in phreatic high
Pool thick-layer weak soil position is quickly compacted construct to water quenching ferronickel slag bed course economy；The soft base of soil is borrowed to change by transporting outward with tradition
It fills out and compares, there are the significant advantages such as high financial profit, construction is simple, the feature of environmental protection be good, be particularly suitable for the idle heap of water quenching ferronickel slag
The soft soil roadbed construction in product area.
Detailed description of the invention
Fig. 1 is a kind of drawing of water quenching ferronickel slag railway embankment binding structure.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
Referring to Fig. 1, construct as follows:
(1), with ratio of slope 1:0.5, using bottom of foundation ditch width beyond the width for designing 4 meters of width of roadway and no more than 5 meters
Height unwrapping wire, soft soil foundation is symmetrically excavated by roadbed middle line 12 to bottom of foundation ditch；
(2), 1 meter of a bottom width, 1.5 meters of top width, deep 0.5 meter of catch pit 15 are excavated in one end of bottom of foundation ditch；
(3), the water in catch pit 15 is taken away by drainpipe 9 with immersible pump 8 dry, and controls underground water position at foundation pit bottom
Below face；
(4), according to cement: clay: the ratio of the weight percent 10%:20%:70% of ferronickel slag excavator scene
The good Modified soil of mixing, and bed course position is inserted, reach 40 centimetres of overall thickness through two layers of compacting of excavator point and forms Modified soil
Bed course 1；
(5), 24 hours are stood to harden to Modified soil, continues to cheat the interior interim control of water level 10 by step 3 in Modified soil face
Layer or less；
(6), add 7 meters of length as single width length by modified 1 top surface width of soil padding, it is long to excavate roadbed foundation pit by this
Degree cuts TGXG divided by 5 gained width numbers；
(7), by single width TGXG, sequentially symmetrical laying and guarantees two width TGXG in the top surface of modified soil padding 1
Overlapping part length be 1 meter, then its equalization is laid on modified soil padding 1, redundance, which is fixed on, is higher by 1 meter of position
It sets；
(8), stop the draining of immersible pump 8, and immersible pump 8 is moved to the top surface of the modification soil padding 1 hardened, by step
4 tamp rapidly catch pit 15；
(9), water quenching ferronickel slag void is layered in TGXG, virtual resurfacing thickness is controlled at 0.25 meter, is looked for excavator compacting
Flat, first water quenching ferronickel slag for forming first Fill Reinforced With Geogrids layer 5 fills layering 16；
(10), it is filled in layering in first water quenching ferronickel slag of first Fill Reinforced With Geogrids layer, one layer 0.25 of void paving
The water quenching ferronickel slag of meter Hou Du；
(11), by immersible pump 8 by water level control 14 or less 0.2 meters away from water quenching ferronickel slag void roofing height with
It is interior；
(12), back and forth vibrate rolling operation 3 times with crawler of excavator, and levelling using bucket simultaneously；
(13), back and forth vibrate rolling operation 1 time with crawler of excavator again, the crawler belt impression between observation back and forth is high
Degree, if this is highly greater than 1 centimetre, then continue to roll, as this highly less than 1 centimetre after, then using douche detect 20 lis of lower part
The density of the water quenching ferronickel slag compacted lift of rice；
(14), continue back and forth vibrate rolling operation 1 time with crawler of excavator, while under being detected again using douche
The density of the water quenching ferronickel slag compacted lift in 20 centimetres of portion；
(15), the relative error for calculating the density of the water quenching ferronickel slag compacted lift measured twice, as the relative error is less than
5%, then it is considered as and meets compacting requirement, if the relative error is greater than 5%, then needs to continue to roll and detect, until detect twice
For relative error less than 5%, this completes second water quenching ferronickel slags to fill filling for layering 14；
(16), it is filled in second water quenching ferronickel slag and is layered on 14 25 cm thick ferronickel slags of empty paving again, stop 8 row of immersible pump
Water, when water level is increased to 20 centimetres of empty paving height or less, continuing to draw water keeps height of water level constant 0；
(17), step 10~15 are repeated, third is completed and the 4th water quenching ferronickel slag fills filling for layering；
(18), stop immersible pump 8 to drain, and rapidly complete the TGXG anti-package of both ends stretching to compacted lift top surface
The construction of first Fill Reinforced With Geogrids layer 5；
(19), add 7 meters of length as single width length by first 5 top surface width of Fill Reinforced With Geogrids layer, opened by this
It digs roadbed foundation pit length and cuts TGXG divided by 5 gained width numbers；
(20), the TGXG that step 7 second reinforced earth of progress fills layer is repeated to pave；
(21), step 10~15 are repeated, first water quenching ferronickel slag for completing second Fill Reinforced With Geogrids layer fills point
Layer fills；
(22), second to the 4th water quenching ferronickel slag that second Fill Reinforced With Geogrids layer is completed in step 20~22 is repeated
Fill filling for layering；
(23), step 18 is repeated, this completes the constructions of second Fill Reinforced With Geogrids layer；
(24), step 18~23 are repeated, the construction of third, the 4th Fill Reinforced With Geogrids layer is completed；
(25), TGXG is expired into paving Fill Reinforced With Geogrids layer top surface, then the height of empty paving metalling 6 exceeds ground 1310
Centimetre, it is compacted with road roller, conventionally detects compactness, use land leveller levelling after reaching requirement.
Claims (2)
1. it includes modified soil padding (1), Fill Reinforced With Geogrids layer that a kind of water quenching ferronickel slag, which changes and doses muscle cushion layer structure and be characterized in,
(5) and metalling (6) three parts；The modification soil padding (1) is according to cement: clay: the weight percent of ferronickel slag
The ratio of 10%:20%:70% fills what compacting was formed with excavator scene mixing；The Fill Reinforced With Geogrids layer (5) by
It is to be compacted the water quenching ferronickel slag (3) filled by the construction method of water rammer method, then formed by TGXG (2) anti-package.
2. realizing that water quenching ferronickel slag described in claim 1 changes the construction method for dosing muscle cushion layer structure, steps characteristic is:
(1), with ratio of slope 1:0.5, using bottom of foundation ditch width beyond the width for designing width of roadway 4m and no more than the height of 5m
Unwrapping wire is symmetrically excavated soft soil foundation by roadbed middle line (12) to bottom of foundation ditch；
(2), the catch pit (15) of a bottom width 1m, top width 1.5m, depth 0.5m are excavated in one end of bottom of foundation ditch；
(3), the water in catch pit (15) is drained by drainpipe (9) with immersible pump (8), and controls underground water position at foundation pit bottom
Below face；
(4), according to cement: clay: the ratio of the weight percent 10%:20%:70% of ferronickel slag excavator scene mixing
Good Modified soil, and bed course position is inserted, reach overall thickness 40cm through two layers of compacting of excavator point and forms modified soil padding
(1)；
(5), 24 hours are stood to harden to Modified soil, continues to cheat interior interim water level (10) control by step (3) in Modified soil face
Layer or less；
(6), add the length of 7m as single width length by modified soil padding (1) top surface width, excavate roadbed foundation pit length by this
TGXG is cut divided by 5 gained width numbers；
(7), by single width TGXG, sequentially symmetrical laying and guarantees two width TGXG in the top surface of modified soil padding (1)
Overlapping part length is 1m, then its equalization is laid on modified soil padding (1), and redundance is fixed on the position for being higher by 1m；
(8), stop the draining of immersible pump (8), and immersible pump (8) is moved to the top surface of the modification soil padding (1) hardened, by step
Suddenly (4) tamp rapidly catch pit (15)；
(9), water quenching ferronickel slag void is layered in TGXG, virtual resurfacing thickness control is compacted levelling, shape in 0.25m, with excavator
Layering (16) are filled at first water quenching ferronickel slag of first Fill Reinforced With Geogrids layer (5)；
(10), empty one layer of paving on layering (16) is filled in first water quenching ferronickel slag of first Fill Reinforced With Geogrids layer (5)
The water quenching ferronickel slag of 0.25m thickness；
(11), by immersible pump (8) by water level control within the height away from water quenching ferronickel slag void roofing (14) following 0.2m；
(12), back and forth vibrate rolling operation 3 times with crawler of excavator, and levelling using bucket simultaneously；
(13), back and forth vibrate rolling operation 1 time with crawler of excavator again, the crawler belt impression height between observation back and forth, such as
This is highly greater than 1cm, then continues to roll, after being highly less than 1cm such as this, then using the water quenching ferronickel of douche detection lower part 20cm
The density of slag compacted lift；
(14), continue back and forth vibrate rolling operation 1 time with crawler of excavator, while lower part is detected using douche again
The density of the water quenching ferronickel slag compacted lift of 20cm；
(15), the relative error for calculating the density of the water quenching ferronickel slag compacted lift measured twice, if the relative error is less than 5%,
Then it is considered as and meets compacting requirement, if the relative error is greater than 5%, then need to continue to roll and detect, until detects twice opposite
For error less than 5%, this completes second water quenching ferronickel slags to fill filling for layering (14)；
(16), empty paving 25cm thickness ferronickel slag is filled on layering (14) again in second water quenching ferronickel slag, stops immersible pump (8) row
Water, when water level is increased to empty paving height 20cm or less, continuing to draw water keeps height of water level constant；
(17), step (10)~(15) are repeated, third is completed and the 4th water quenching ferronickel slag fills filling for layering；
(18), stop immersible pump (8) draining, and the TGXG anti-package for rapidly stretching out both ends is to compacted lift top surface, complete the
The construction of one Fill Reinforced With Geogrids layer (5)；
(19), add the length of 7m as single width length by first Fill Reinforced With Geogrids layer (5) top surface width, excavate road by this
Base foundation pit length cuts TGXG divided by 5 gained width numbers；
(20), the TGXG that second reinforced earth of step (7) progress fills layer is repeated to pave；
(21), step (10)~(15) are repeated, first water quenching ferronickel slag for completing second Fill Reinforced With Geogrids layer fills point
Layer fills；
(22), second to the 4th water quenching ferronickel slag for completing second Fill Reinforced With Geogrids layer in step (20)~(22) is repeated
Fill filling for layering；
(23), step (18) are repeated, this completes the constructions of second Fill Reinforced With Geogrids layer；
(24), step (18)~(23) are repeated, the construction of third, the 4th Fill Reinforced With Geogrids layer is completed；
(25), TGXG is expired into paving Fill Reinforced With Geogrids layer top surface, then the height of empty paving metalling (6) exceeds ground (13)
10cm is compacted with road roller, conventionally detects compactness, uses land leveller levelling after reaching requirement.
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| CN114370064A (en) * | 2021-12-23 | 2022-04-19 | 安徽省交通规划设计研究总院股份有限公司 | Reverse slope small-interval reinforced soil composite bearing body |
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Application publication date: 20190524 |