CN107614794A - The domatic maintenance construction method of coal ash is used - Google Patents

The domatic maintenance construction method of coal ash is used Download PDF

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Publication number
CN107614794A
CN107614794A CN201580080068.8A CN201580080068A CN107614794A CN 107614794 A CN107614794 A CN 107614794A CN 201580080068 A CN201580080068 A CN 201580080068A CN 107614794 A CN107614794 A CN 107614794A
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China
Prior art keywords
domatic
water
layer
ash
water conservation
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CN201580080068.8A
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Chinese (zh)
Inventor
楳木忠秋
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Kulinka Co Ltd
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Kulinka Co Ltd
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Priority to PCT/JP2015/069280 priority Critical patent/WO2017006388A1/en
Publication of CN107614794A publication Critical patent/CN107614794A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing of slopes or inclines

Abstract

There is provided it is a kind of have both water penetration and water-retaining property and can realize prevent domatic maintenance construction method of the rainwater to the water damage countermeasure of domatic erosion etc..Rainwater (7) moment of domatic (4) that make from nimbus (6) rainfall to intermountain etc. to safeguard is permeable and suppresses it and is flowed out from domatic surface.That is, water conservation layer (2) is laid on domatic basal disc (4), the domatic top layer for being suppressed rainwater (7) using its pervious function is flowed out.Meanwhile rainwater (7) is subjected to water conservation in large quantities in water conservation layer (2), the erosion for suppressing the soil moved in improve the original layer of domatic (4) suppresses.In addition, using the pervious function of water conservation layer (2), suppress the erosion on top layer intensively washed away by the raindrop (8) of the whereabouts such as the structure from steel tower (9) etc., stringing.

Description

The domatic maintenance construction method of coal ash is used
Technical field
The present invention relates to using in coal heat power station etc. caused coal ash make as the raw material of slope protection material Technology, more particularly to possess water penetration and water-retaining property and durability and table caused by centrality heavy rain etc. can be prevented The outflow of soil layer, the domatic maintenance construction method corroded.
Background technology
In coal heat power station etc., it is expected by because of the burning of coal and caused by coal ash with without using in landfill Build or carry out to abandon and carry out the technological development of recycling again premised on processing, and propose and coal ash is used as paving the way for highway The technology of material.
For example, Patent Document 1 discloses a kind of following anti-swath path method of water penetration, possess:Will be from thermal power generation Boiler caused by Porous coal ash (cinder ash), cement class curing materials and mixed liquor with defined weight than mixing Process;The mixture is rolled on roadbed to form the process of paved layers 1, and is set to plant with water penetration and with suppression The surface strength of thing germination.In addition, cinder ash is mixed into defined granularity with flyash Patent Document 2 discloses one kind Paveio(u)r be distributed, that there is suppression weed growth function.
At present, trade waste reuses, bio-diversity is safeguarded and also serves as social responsibility of enterprises and be required have Tackled.According to the present invention, by regarding the coal discharged from coal heat power station burning ash as material, can reduce originally Carried out the amount of the coal burning ash of embedded processing.In addition, be using the high-hydroscopicity of coal burning ash make rainwater slowly to Ground permeates, so as to contribute to the environment-friendly type construction method that bio-diversity is safeguarded by underground water maintenance.
On the other hand, in recent years, in intermountain, Plain, regardless of region frequently there occurs record-breaking centrality heavy rain, lead Substantial amounts of people and economic loss are caused.Particularly, in the electric power pylon of representative for also serving as social infrastructure at the same time, Intermountain is covered with backbone, just in case the power failure that will cause in hundreds of thousands home-ranges of collapsing.Therefore, for the ground of electric power pylon Also require that ground corresponding with weather environment of today is safeguarded.
Ground so far, which is safeguarded, mainly employs greening construction method, but can cause more than the centrality heavy rain contemplated The agent of erosion increases, and ground frequently occurs with afforesting situation about together flowing out.As conventional greening construction method, for example, with The construction method of asphalt emulsifier is blowed after being constructed on domatic to the native mixture with cement.
However, the feelings of the construction method of asphalt emulsifier are blowed after being constructed on domatic to the native mixture with cement Under condition, exist rainwater immerse cement mixing layer and it is domatic between, easily trigger the stripping of cement mixing layer, the problem of collapsing.Cause This, it is proposed that dictyosome is covered to prevent the construction method of the landing of soil moved in improve the original by being laid on domatic.
However, only leaning on the covering of dictyosome, bring and wash away in the readily permeable layer to soil moved in improve the original of rainwater in rainfall, fixed soil moved in improve the original Ability the limit be present.Therefore, in order to prevent the landing of soil moved in improve the original, the construction method that framework is laid on domatic is developed, but In the zoning of framework, soil moved in improve the original is not fixed on due to it is domatic, therefore exist it is domatic it is insufficient with soil moved in improve the original layer clinging force, hold It is also easy to produce the problem of the landing of soil moved in improve the original.
So, in conventional slope greening construction method, actual conditions are that soil moved in improve the original layer does not fill with domatic clinging force Point, therefore soil moved in improve the original slides or easily washed away by caused by the rainwater permeated, from the viewpoint of domatic maintenance, it is impossible to realize Expected purpose.
On the other hand, in greening construction method, as the construction method using coal ash, disclose following domatic Consolidating agent is set to contain flyash with erosion-control agent to have water penetration, water-retaining property in greening construction method:On the slope of the flat stone of iron Earth-retaining pad part is laid on face, and is fixed with anchor part, before with earth-retaining pad part covering, with including consolidating agent Soil moved in improve the original formed soil moved in improve the original layer, and above it blow mix have vegetable seeds, fertilizer, erosion-control agent soil moved in improve the original come formed plant life (the reference patent document 1 of long layer.).
In addition, in patent document 4, disclose and blow growth base-plate materials to domatic and import the greening construction of plant Greening is used in LP blades material used in method, uses the coal ash by being used in coal heat power station etc., lime chemical combination What thing, gypsum were formed uses desulfurizing agent.
Patent Document 5 discloses following water conservation construction method:House the water flowing by the sizing formed with coal ash Body and be contained in the capsule shape water-keeping material that water conservation body therein is formed, in the soil being dispersed on domatic, revetment face and spread it is even, And then form basal discs of growing plant layer.
Patent document 6 discloses that will be paved with using the anti-grass of coal slag, coal ash as aggregate with material in domatic anti-grass Construction method.
Prior art literature
Patent document
Patent document 1:Japanese Unexamined Patent Publication 2001-90012 publications
Patent document 2:Japanese Unexamined Patent Publication 2007-231565 publications
Patent document 3:Japanese Unexamined Patent Publication 10-317382 publications
Patent document 4:Japanese Unexamined Patent Publication 11-131060 publications
Patent document 5:Japanese Unexamined Patent Publication 2000-351968 publications
Patent document 6:Japanese Unexamined Patent Publication 2014-234655 publications
The content of the invention
The problem that invention will solve
However, the prior art only refers to water penetration (benefit of draining), suppresses the anti-grass of germination of the plants such as weeds, Its water-retaining property is not referred to.For example, the technology of paving the way on requiring centrality heavy rain water damage countermeasure, does not do any disclosure or opens Show.
The technical task of the present invention is establishment construction method corresponding with domatic inclination and ground geology, from steel tower Raindrop (precipitation) countermeasure, prevent ground infiltration capacity stream of the rain penetration effect to the rainwater for washing away, learning water conservation of ground The basic rate of output evaporation capacity, the durability constructed when domatic.The present invention is in view of this technical task, it is therefore intended that carries Have both rain penetration, rainwater maintenance, durability for one kind, using for the water damage countermeasure for preventing rainwater to erosion etc. can be realized The domatic maintenance construction method of coal ash.
The present invention specifically uses the countermeasure purpose based on following items.
(1) rainwater drip goes out countermeasure
Make rainwater moment permeable, and suppress it and flowed out from ground basal plane (domatic) surface.That is, the pervious function of water conservation layer is utilized Suppress the domatic top layer outflow of rainwater.
(2) rainwater raindrop erosion countermeasure
Rainwater is subjected to water conservation in large quantities, suppresses the erosion of the soil moved in improve the original layer of ground basal plane (domatic).That is, the saturating of water conservation layer is utilized Water function inhibitio corrodes domatic top layer because raindrop fall (structure stringing).
(3) ground load suppresses
Slowly by rain-water drainage, suppress the drastically infiltration to ground.That is, rainwater is suppressed using the water retaining function of water conservation layer Drastically infiltration to ground, and suppress top layer and collapse.In addition, suppressing to draining adjacently, suppress rainwater to domatic construction Outflow outside scope.
(4) for the protection of environment
Safeguard that rainwater circulates by underground water.
(5) anti-careless countermeasure
Pass through 3~7N/mm of compressive strength2Suppress the weed growth from ground basal plane.
(6) Circular Society Construction is advantageous to
Realize effective utilization of the coal burning ash from the discharge of coal heat power station.
The present invention is only with the water conservation layer using coal ash as material or makes pervious bed integrated with water conservation layer, plays former This feature (water retaining function) as the coal ash of discarded object, used as paving Load materials, so as to realize from discarded object to money Source reuses.
Means for solving the problems
Therefore, the first aspect of the domatic maintenance construction method for having used coal ash of the invention is, by cinder ash with from Tough Lock (registration mark), bassanite, magnesia cement, water anhydrite, Parker's cement, Portland cement or aluminum oxide water At least one cement class curing materials for being selected in mud and cement class hardening agent person is suitably mixed into water mixes and lay In domatic, it is 400~500kg/m to form water holding capacity3Water conservation layer.In addition, second aspect is, while make using by cinder ash For the earth-retaining of soil moved in improve the original, earth bag.Also, the third aspect is, while using the prefabricated flat board using cinder ash as aggregate.In addition, the Four aspects are that the particle diameter of cinder ash is 0.2mm~7mm.
Although the substantial amounts of cinder ash produced by coal thermal power generation, by mixing curing materials, energy among them Enough used as soil moved in improve the original.Soil moved in improve the original is used as due to mixing curing materials, soil moved in improve the original layer can be solidified into appropriate hardness, and Coefficient of permeability is also set to appropriate.Thereby, it is possible to effectively utilize, from coal heat power station, largely caused cinder is grey.
Brief description of the drawings
Fig. 1 is the summary section for representing to have used an embodiment of the construction of paving the way of the coal ash of the present invention.
Fig. 2 is the explanation figure for the structure for showing schematically the domatic maintenance of the present invention.
Fig. 3 is the profile of the construction example of the domatic maintenance construction method of the present invention.
Domatic (a) that the showing schematically of Fig. 4 implements the slope protection construction method of the present invention is top view, (b) It is profile.
Embodiment
Hereinafter, pave the way construction and the domatic maintenance of coal ash for having used the present invention are illustrated based on embodiment shown in the drawings The embodiment of construction method.
Embodiment 1
First, the basic construction of paving the way of the present invention is illustrated.This, which is paved the way, is configured to be suitably applied to Plain In pavement, cycle track.As shown in figure 1, forming water conservation layer 2 on the roadbed 3 for be equipped with granular rubble, and then it is laminated in The ground of water conservation layer 2 is provided with pervious bed 1.Moreover, the thickness t of pervious bed 11About 10mm or so, the thickness t of water conservation layer 22About 40mm or so, the thickness t of roadbed 33It is set to 100mm or so.
Cinder ash as the Porous of coal ash caused by the burning boiler from heat power station etc. is solidified with cement class Material and mixed liquor (being suitably mixed into cement class hardening agent in water to form) are mixed with defined weight ratio.As water Mud class hardening agent, can be suitably used NSBOND (trade names:Nippon Kasei Chemical Company's system), SHINKO BOND (commodity Name:Oshika Shinko Co., Ltd.'s system) etc. organic or polymerize species adhesive.
In the present invention, cinder ash refer to it is in making coal ash caused by coal burning in heat power station etc., under The ash that the block for the coal ash for falling on the bottom of boiler is reclaimed, is dehydrated and crushed.As coal ash, it is preferred to use will Cinder ash is crushed or screened into coal ash obtained by about 0.2mm~7.0mm particle diameter.Weight ratio is relative to cinder ash 1m3Will Cement class curing materials 200kg, 120~140 liters of mixed liquor are stirred with blender, and generation is as the material of water conservation layer 2 Second mixture M 2.In the present embodiment, as cement class curing materials, Tough Lock (trade names have been used:Sumitomo Osaka Cement Co. Ltd. system).In addition, cement class curing materials refer to the process over time if being stirred with mixed liquors such as water and The body of powder of solidification, but be used as the cement class curing materials, such as bassanite, magnesia cement, water anhydrite, natural can be used Cement, Portland cement, alundum cement etc..
[water conservation layer material mixes process]
(1) coal ash is loaded into blender.
(2) cement class curing materials are loaded.(for example, relative to 100 liters of 100 × 0.001 × 200=of cinder ash mixing 20kg cement class curing materials.)
(3) dry mixing 1~2 minute and be sufficiently mixed.
(4) mixed liquor is loaded.(for example, relative to 100 liters of cinder ash mixing 100 × 0.001 × 120 (140)=12 (14) mixed liquor risen.)
(5) fully mixed with 2~3 minutes.
Here, the charge weight on mixed liquor, preferably carried out as the mixing, but transport to the cinder at scene Ash is not that moisture content is constant, therefore is suitably mixed according to its moisture content.In other words, it is preferable that be while with hand confirm thing Rationality matter is the degree of somewhat water seepage in the state of gently holding while be gradually added into mixed liquor.If mixed liquor is insufficient, can produce Life is dry and astringent, worries that water conservation layer can not obtain enough intensity, it is therefore desirable to pay attention to.
[construction of water conservation layer] (t2=40mm)
(1) the second mixture M 2 is transported into construction location with single block etc..
(2) to loading the second mixture M 2 on the rubble being paved with roadbed 2, and with dragonfly bar (Japanese:ト Application ボ), rake It is even Deng spreading.
(3) after, it is absorbed in roadbed securely in a manner of being pressed into metal trowel and (is ground as needed with roller etc. Pressure).
(4) maintenance of more than one day is ensured.
Water conservation layer 2 after construction shows 400~500kg/m of water holding capacity3, moisture penetration more than Retained more than absorbability Into ground.
Next, by particle diameter 2mm~7mm cinder ash shell and resinae adhesive with defined weight than mixing.Relatively In weight than cinder ash shell 1m3Resinae adhesive is mixed above and stirred with blender with 100kg, turn into pervious bed First mixture M 1 of the material on (top layer) 1.In the present embodiment, as resinae adhesive, used and be used as epoxies tree SANYU ROAD (the Japaneses of fat:サ Application ユ ロ ー De) R-145 (trade names:SANYULEC Co. Ltd. systems).In addition, also may be used Suitably to add colored toner corresponding with the surrounding landscape of construction.
[skin-material mixing process]
(1) cinder ash shell is loaded to blender.
(2) epoxy resin is loaded.(for example, mixing 100 × 0.001 × 100=10kg tree to 100 liters of cinder ash shell Lipid binder.)
(3) it was sufficiently stirred with 2~3 minutes.
[construction on top layer] (t1=10mm)
(1) the first mixture M 1 is transported to construction location with single block etc..
(2) the first mixture M 1 is loaded on water conservation layer 2, and it is even with the paving such as dragonfly bar, rake.
(3) in a manner of being pressed into metal trowel, one side plug-hole finishes on one side, so as to eliminate deviation (it is as needed and Rolled with roller etc.).
(4) from mixing untill finishing, in summer with 20 minutes for target, in the winter time with 30 minutes for target.
(5) or so 6 small times are conserved after construction.
Pervious bed 1 after construction shows coefficient of permeability 0.5cm/s.
The present invention composition that be able to will be paved the way according to application places is changed to preferable mode.For example, people, bicycle pass through (roadbed+roadbed (granular rubble 100mm)+water conservation layer (coal ash 40mm)+(top layer coal shell 10mm), park etc. management vehicle (roadbed+roadbed (granular rubble 150mm)+water conservation layer (coal ash 50mm)+(the top layer coal shell 15mm), in addition, only leaning on to pass through Water conservation layer 2, compressive strength have about 3N/mm2More than, the root of weeds will not invade, therefore can be used as anti-careless purpose (roadbed+guarantor Water layer 50mm).
Hereinafter, the field test side of the bituminous pavement road according to Japanese highway association of civic organization or JIS defineds is shown Method carries out result and the investigation of various strength tests.
[water retaining function experiment]
Confirm the moisture holding capacity of stabilized zone.It is measured by measurement of water-content coefficient device.Maximum water retention is 47%, and a reference value is 40%, thus confirm as it is qualified.
[determining water level water permeabillity test]
Confirm on the basis of coefficient of permeability more than value.It is measured by simple water permeabillity test machine.The average value of 3 times is 0.535, a reference value 0.5, therefore confirm as it is qualified.
[an axle compressive strength tests (top layer)]
Confirm more than compressive strength a reference value.It is measured by JIS 1,108 2006, measure intensity is 6.84N, base Quasi- value be 3N, therefore confirm as it is qualified.
[an axle compressive strength tests (stabilized zone)]
Confirm on the basis of compressive strength more than value.It is measured by JIS 1,108 2006, mean intensity 14.8N, A reference value is 3N, thus confirm as it is qualified.
[acute toxicity test]
It is safety to confirm for animal.Pass through medaka (Japanese:ヒ メ ダ カ) confirmed.Life after 72 hours It is 100% to deposit rate, and it is qualified to confirm as.
[experiment such as heavy metal]
Confirm coal ash whether within the environmental benchmark value of national regulation.By defined metering, whole projects is base Within quasi- value, it is qualified to confirm as.
[pavement temperature experiment]
Demonstrate the difference for the surface temperature difference that pitch is paved the way with the present invention.The present invention side that paves the way is lower than bituminous pavement road 7.7℃。
Next, the domatic maintenance construction method based on the brief description of the drawings present invention.Schematically illustrated in Fig. 2 and Fig. 3 The structure of domatic maintenance.
Embodiment 2
As shown in Fig. 2 construction method of the present invention such as makes from the rainfall of nimbus 6 to intermountain at domatic 4 moment of rainwater 7 that should be safeguarded It is permeable and suppress it and flowed out from domatic surface.That is, the water conservation layer 2 of the embodiment 1 is laid on domatic basal disc 4, it is saturating using its The domatic top layer outflow of water function inhibitio rainwater 7.Meanwhile rainwater 7 is subjected to water conservation in large quantities in water conservation layer 2, suppress domatic 4 Soil moved in improve the original layer erosion.In addition, as shown in figure 3, using water conservation layer 2 pervious function, suppress by the structure from the grade of steel tower 9, The erosion on the top layer that the raindrop 8 of the whereabouts such as stringing intensively wash away.
That is, the drastically infiltration to domatic basal disc is suppressed slowly by the draining of rainwater 7 using water conservation layer 2.Thus top layer is suppressed Collapse.In addition, suppressing to draining adjacently, suppress outflow of the rainwater 7 to outside domatic boundary of works area.So, it is domatic in construction Top layer, the moment of rainwater 7 is permeable to water conservation layer 7, water conservation layer 2 by substantial amounts of rainwater carry out water conservation (about 40% water conservation of volume Power), the rainwater of temporary transient water conservation gradually and slowly permeates into basal disc soil moved in improve the original, and to the draining of underground water vein 5.By such Lower water, which is safeguarded, can safeguard that rainwater circulates.
, can be mixed to being directly loadable into second on domatic 4 in the place that can be irrigated on the spot when laying water conservation layer 2 to domatic 4 Compound M2 simultaneously adjusts shape, rolled.(do not scheme alternatively, it is also possible to lay the nets such as lath net according to landform, domatic angle of inclination Show) and strengthen the vigor of water conservation layer 2, or simultaneously using stacking earth-retaining 10, this kind of conventional construction method of earth bag 11.
In this case, as the soil moved in improve the original stored in the inframe or earth bag 11 of earth-retaining 10, it is preferred to use cinder ash. Thus, bumps be present even if domatic 4 also for domatic 4 gapless and can be reliably formed water conservation layer 2 along its deformation.
In addition, in the place that the moving-in path without concrete mixer truck, jumbo etc. can not irrigate on the spot, The tabular of arbitrary dimension can be prefabricated into advance using cinder ash as aggregate, and use reinforcing rod (Japanese:Iron muscle ピ Application) Domatic 4 are fixed on etc. being sticked.That is, it can use and the afterproduct of water conservation layer 2 is turned into water conservation laminate.Also, such as Fig. 4 It is shown, the ground of water conservation layer 2 is preferably overlapped between the steel tower foundation 9a of the lower section of steel tower 9 precipitation countermeasure reinforced portion is set 13.The precipitation countermeasure reinforced portion 13 can by thicken the ground of water conservation layer 2 it is huge setting or stacking earth bag 10, earth-retaining 11, Water conservation laminate 12 is realized.
Industrial utilizability
The present invention it is following some play excellent effect.
(1) due to rainwater can be stored, therefore the urban sewage or river inundation triggered during heavy rain is suppressed, as water damage Countermeasure is more effective.
(2) rising of the effect suppression pavement temperature of the heat of gasification of the water of water conservation in water conservation layer can be utilized, makes heat island Phenomenon relaxes.
(3) germination of the plants such as weeds can be suppressed.
(4) the cinder ash as discarded object can be effectively used, resource is can help to and reuses.
(5) meet the environmental benchmark value of national regulation, will not be brought to the ecosystem on periphery and underground water etc. negatively Influence.
(6) can prevent raindrop fall caused by electric power pylon ground basal disc face erosion, can carry out with nowadays Weather environment corresponding to ground safeguard.
Description of reference numerals
1 pervious bed (top layer:First mixture layer)
2 water conservation layer (stabilized zone:Second mixture layer)
3 roadbeds (granular rubble)
4 is domatic
5 underground water veins
6 nimbus
7 rainfalls
8 raindrop
9 electric power pylons
9a steel tower foundation
10 earth bags
11 earth-retainings
12 water conservation laminates (prefabricated afterproduct)
13 precipitation countermeasure reinforced portions
The mixtures of M1 first
The mixtures of M2 second

Claims (4)

  1. A kind of 1. domatic maintenance construction method for having used coal ash, it is characterised in that
    By cinder ash with from Tough Lock (registration mark), bassanite, magnesia cement, water anhydrite, Parker's cement, Portland At least one cement class curing materials for being selected in cement or alundum cement and that cement class is suitably mixed into water is strong The material of agent mixes and is laid in domatic, and it is 400~500kg/m to form water holding capacity3Water conservation layer.
  2. 2. the domatic maintenance construction method according to claim 1 for having used coal ash, it is characterised in that
    Use earth-retaining of the cinder ash as soil moved in improve the original, earth bag simultaneously.
  3. 3. the domatic maintenance construction method according to claim 1 or 2 for having used coal ash, it is characterised in that
    Simultaneously using the prefabricated flat board using cinder ash as aggregate.
  4. 4. the domatic maintenance construction method according to any one of claim 1 to 3 for having used coal ash, it is characterised in that
    The particle diameter of cinder ash is 0.2mm~7mm.
CN201580080068.8A 2015-07-03 2015-07-03 The domatic maintenance construction method of coal ash is used Pending CN107614794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/069280 WO2017006388A1 (en) 2015-07-03 2015-07-03 Slope maintenance method using coal ash

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Publication Number Publication Date
CN107614794A true CN107614794A (en) 2018-01-19

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MY (1) MY186029A (en)
WO (1) WO2017006388A1 (en)

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JP6456417B2 (en) * 2017-02-27 2019-01-23 株式会社ランド Liquid-solidified composition and solidified body

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CN204298833U (en) * 2014-09-30 2015-04-29 华中农业大学 Protecting slope ecology and recovery arrangement
JP2015045226A (en) * 2014-12-08 2015-03-12 株式会社環境緑化保全コンサルタント Pavement structure using coal ash and construction method thereof

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