CN110218101A - A kind of cement base silt light road foundation building block, structure and construction method - Google Patents
A kind of cement base silt light road foundation building block, structure and construction method Download PDFInfo
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- CN110218101A CN110218101A CN201910562359.0A CN201910562359A CN110218101A CN 110218101 A CN110218101 A CN 110218101A CN 201910562359 A CN201910562359 A CN 201910562359A CN 110218101 A CN110218101 A CN 110218101A
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- Prior art keywords
- building block
- silt
- roadbed
- cement
- cement base
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
-
- 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
- E01C3/006—Foundations for pavings made of prefabricated single units
-
- 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
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00198—Characterisation or quantities of the compositions or their ingredients expressed as mathematical formulae or equations
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses a kind of cement base silt light road foundation building blocks, structure and construction method, it solves subgrade construction in the prior art and needs cast in situs, the more problem of the cement wasting of resources, with facilitating road construction, shorten the beneficial effect of construction period, its scheme is as follows: a kind of cement base silt light road foundation building block, roadbed block material is cement base silt material, roadbed building block is rule body, roadbed building block side is equipped with scarf, so that two roadbed building blocks, which are spliced, forms the first drainage channel between the latter two, roadbed building block bottom side is along its length or width direction is additionally provided with the second drainage channel, the direction of first drainage channel and the second drainage channel is mutually perpendicular to.
Description
Technical field
The present invention relates to field of road, more particularly to a kind of cement base silt light road foundation building block, structure and apply
Work method.
Background technique
Foam lightweight soil is in current engineering using a kind of wider light filler, have that density is smaller and intensity is larger,
The preferably good engineering characteristic of deformation resistance, can not only mitigate the additonal pressure to ground for back filling behind abutment, additionally it is possible to subtract
The consolidation settlement of small roadbed itself is a kind of material of ideal prevention and treatment bumping at bridge-head.Foam lightweight soil is by cement and water
Mix, stirring is made after foam is added.Cement is made using lime stone and clay as primary raw material through the techniques such as calcining, levigate.System
The techniques such as making cement and to consume the natural resources such as large quantities of lime stone, clay, and calcine, is levigate must have the support of the energy, and
And striaght cement Foam lightweight soil cost increases relative to tradition by the roadbed of raw material of soil significantly, how to guarantee Foam lightweight soil
It is technology in current area that cement consumption is reduced under the premise of engineering properties with energy saving, saving natural resources, reduction cost
The important topic that personnel face.
In road construction, duration anxiety is especially prevalent phenomenon.Currently, Foam lightweight soil subgrade construction is using scene
The mode of placement layer by layer.After complete one layer of cast in situs, roadbed needs to carry out the maintenance of some cycles, this has delayed road complete significantly
The time being open to traffic at construction.How the construction period of Foam lightweight soil roadbed is reduced, and green construction becomes those skilled in the art
Technical problem urgently to be resolved.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of cement base silt light road foundation building block, Neng Goujin
Row prefabrication, on-site consolidation greatly speed up the speed of roadbed filling, reduce the construction period of road.
A kind of concrete scheme of cement base silt light road foundation building block is as follows:
A kind of cement base silt light road foundation building block, roadbed block material are cement base silt light material, roadbed building block
For rule body, roadbed building block side is equipped with scarf, so that two roadbed building blocks, which are spliced, forms the first drainage channel between the latter two,
Roadbed building block bottom side is along its length or width direction is additionally provided with the second drainage channel, and the first drainage channel and the second draining are logical
The direction in road is mutually perpendicular to.
Above-mentioned roadbed building block, by the setting of scarf, in order to form the first drainage channel after roadbed building block splicing,
The setting for passing through the second drainage channel again, is effectively drained convenient for roadbed building block, and roadbed building block passes through cement base silt material
It is made, it can be achieved that prefabrication manufacture, effectively reduces the cost of roadbed building block, saving cement resource, and then saved production
The energy of cement reaches energy saving, the effect of green building.
Further, the roadbed block material includes cement, silt and foam.Foam is mixed by water and foaming agent
It is made.The characteristics of material is that density is small, intensity is higher and cost is moderate, is sunk after the work of road can be reduced for soft soil foundation
Drop.
Further, cement, water, silt and foam are configured as follows:
RL=MC+MS+MW
In formula:
α --- silt accounts for the percentage of cement quality in cement silt slurry (mixture of cement, water and silt)
B --- ratio of mud coefficient, the ratio of mud=1:b
Mc--- cement quality (kg/m in every side's cement silt slurry3)
Ms--- silt quality (kg/m in every side's cement silt slurry3)
Mw--- water quality (kg/m in every side's cement silt slurry3)
ρc--- the density (kg/m of cement3)
ρs--- the density (kg/m of silt3)
RL--- the density (kg/m of the quality of every side's cement paste, i.e. cement silt slurry3)
Y --- the first intermediate parameters, no concrete meaning
mw=Mw (1- λ)
mc=Mc·(1-λ)
ms=Ms·(1-λ)
mf=Rfw-mw-mc-ms
In formula:
Rfw--- the wet density (kg/m of cement base silt light material3)
ρa--- the density (kg/m of foam3)
mw--- the quality (kg/m of water in every side's cement base silt light material3)
mc--- the quality (kg/m of cement in every side's cement base silt light material3)
ms--- the quality (kg/m of silt in every side's cement base silt light material3)
mf--- the quality (kg/m of every side's cement base silt light material foam3)
λ --- the second intermediate parameters, no concrete meaning
Further, the roadbed building block is the cuboid that side has the scarf, four circumferential to cuboid
Side carries out the excision of sphenoid, can obtain roadbed building block, and the width of sphenoid is the 1/14~1/12 of roadbed building block width, wedge
The height of body is the 1/14~1/12 of roadbed segment heights, and the length is the length of roadbed building block；
Preferably, roadbed building block is the square that side has the scarf.
Further, the scarf is set at the four edges of the cuboid or square side, in this way to filling after
Roadbed stripping and slicing, each roadbed building block has four the first drainage channels.
Further, the roadbed building block is equipped with the second drainage channel described at least one, and roadbed stripping and slicing is equipped with more
The second drainage channel that item is parallel to each other, the second drainage channel is quadrangular shape, and the second drainage channel width is roadbed block
The 1/8~1/6 of block width, length are the length of roadbed building block, and the setting of the second drainage channel can be lifted as roadbed building block
Instrument inserting port.
Cement base silt light road foundation building block has that density is smaller and intensity is larger, the preferably good engineering of deformation resistance is special
Property, the additonal pressure to ground can not only be mitigated for Abutment Back backfill, additionally it is possible to reduce the consolidation settlement of roadbed itself,
It is a kind of material of ideal prevention and treatment bumping at bridge-head.
For overcome the deficiencies in the prior art, the present invention also provides a kind of cement base silt light road foundation structures, including
A kind of cement base silt light road foundation building block described in muti-piece, roadbed building block described in muti-piece are arranged as several layers, and each layer
Roadbed building block the first drainage channel in a row arranged in rows and described and the connection setting of the second drainage channel.
Further, in the cement base silt light road foundation building block, pass through connection material between adjacent two layers roadbed building block
Material connection in each layer, is equally connected by connecting material between adjacent roadbed building block, and connecting material is clay or lime,
Clay and lime cost are lower, have preferable concatenation ability, and rigidity is less than the light road foundation building block of cement base silt, avoids
Interface occurs stress and concentrates and destroy.
Further, in the cement base silt light road foundation building block, the roadbed building block of adjacent two layers is in road width side
To and/or the setting of the length direction fissure of displacement, in each layer, the same fissure of displacement of the roadbed building block of adjacent two rows is arranged.
A kind of construction method of above-mentioned cement base silt light road foundation structure, including following content:
According to the requirement that road structure designs, the size of cement base silt light road foundation building block a kind of, the number of plies and close are determined
Degree, and roadbed building block is made；
It carries out road excavation or High-filled emkankment slope retaining wall is built；
Filling for first layer roadbed building block is carried out along the width direction and/or length direction of road；
Filling for second layer roadbed building block is carried out, the building block of second layer roadbed is in link length direction and the building block of first layer roadbed
Fissure of displacement setting, and paving mode filling with first layer roadbed building block；
Successively carry out filling for upper subbase building block.
Further, the determination that roadbed building block is carried out to make include to each composition of roadbed building block:
The wet density of cement base silt light material, wet density 500kg/m required for determining3-1000kg/m3；
Determine the ratio of mud, ratio of mud 0.5-0.6；
Determine that silt volume, silt volume are 0.2-0.4；
The percentage of cement quality, the ratio of mud, the density of cement and silt are accounted for according to silt in cement slurry (silt)
Density obtains cement quality and silt quality in every side's cement silt slurry, obtains the i.e. every side's cement silt of water consumption according to the ratio of mud
Water quality in slurry；
Every Fang Shui is obtained according to the density of the wet density of cement base silt light material, the density of foam, cement silt slurry
Foam quality, silt quality, cement quality, water consumption needed for mud original washing powder soil light material.
Further, filling for first layer roadbed building block first is carried out along the width direction of road, along width direction, phase
Adjacent two pieces of roadbed stripping and slicing fissure of displacement setting；
Successively filling for roadbed building block is carried out then along the length direction of road, forms first drainage channel,
Guarantee to be connected in the second drainage channel of the adjacent two roadbeds building block of length direction of road；
After the completion of the roadbed building block of first layer is filled, the second drainage channel is filled using graded broken stone, is filled using coarse sand
First drainage channel.
Wherein, coarse sand and graded broken stone all have good water permeability, and can provide vertical bearing capacity.Every layer of road
The first drainage channel and the second drainage channel on the downside of base building block are interconnected, the first drainage channel be set to crater wall or retaining wall
Drainpipe connection make to keep more dry inside roadbed, be conducive to the durability of road structure so that roadbed is discharged in water.
Compared with prior art, the beneficial effects of the present invention are:
1) present invention replaces existing cast-in-place roadbed by cement base silt light road foundation building block, and it is strong to shorten scene maintenance
Degree can be such that site operation quality, speed of application, construction green degree greatly improves, meet the theory of greenization construction.
2) present invention passes through the restriction of roadbed block material, and the density of building block is low, and the additional stress generated to ground is small, has
It is used for soft soil foundation conducive to the settlement after construction for mitigating road, the especially material, the settlement after construction of soft soil foundation can be reduced, into
And reduce the negative effect to road structure.
3) of the invention by the way that compared to striaght cement Foam lightweight soil, cement base silt light material cost is significantly reduced, and
And cement resource is saved, and then saved the energy of production cement, reach energy saving, the effect of green building.
4) present invention passes through the setting of the first drainage channel and the second drainage channel, the first, second drainage channel interaction connection
It is logical, and other pumping equipments in roadnet are combined, it can be discharged rapidly when there is water in roadbed, keep drying to be conducive in roadbed
The long-term behaviour of roadbed.
Detailed description of the invention
The Figure of description for constituting a part of the invention is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.
Fig. 1 is cement base silt light road foundation building block schematic diagram in the embodiment of the present invention；Arrow in figure indicates water the
Flow direction in one drainage channel.
Fig. 2 is cement base silt light road foundation building block front view in the embodiment of the present invention；Arrow in figure indicates water the
Flow direction in one drainage channel.
Fig. 3 is cement base silt light road foundation building block A-A sectional view in the embodiment of the present invention；Arrow in figure indicates that water exists
Flow direction in second drainage channel.
Fig. 4 is cement base silt light road foundation block masonry schematic diagram in the embodiment of the present invention.
Fig. 5 is cement base silt light road foundation block masonry B-B sectional view in the embodiment of the present invention.
Fig. 6 is cement base silt light road foundation block masonry C-C sectional view in the embodiment of the present invention.
Wherein, the 1, first drainage channel, 2, roadbed building block, the 3, second drainage channel, 4, cut after roadbed building block, 5, tiltedly
Section.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the present invention.Unless another
It indicates, all technical and scientific terms used herein has usual with general technical staff of the technical field of the invention
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As background technique is introduced, the deficiencies in the prior art, in order to solve technical problem as above, this hair
Bright to propose a kind of cement base silt light road foundation building block, with reference to the accompanying drawings of the specification, the present invention is further elaborated.
Embodiment 1
As background technique is introduced, the deficiencies in the prior art, in order to solve technical problem as above, this Shen
It please propose a kind of cement base silt light road foundation building block.
As shown in Figure 1-Figure 3, a kind of cement base silt light road foundation building block, 2 material of roadbed building block are cement base silt material
Material, roadbed building block 2 are rule body, and such as cuboid or hexahedron, 2 side of roadbed building block is equipped with scarf 5, so that two roadbed building blocks
2 splicings form the first drainage channel 1 between the latter two, and 2 bottom side of roadbed building block is along its length or width direction is additionally provided with the
The direction of two drainage channels 2, the first drainage channel 1 and the second drainage channel 3 is mutually perpendicular to, and the size of single roadbed building block is
600mm*600mm*600mm。
First drainage channel 1 is cut off by complete hexahedron roadbed building block along four angles of its width direction, the portion cut
It is divided into sphenoid.The width of sphenoid is the 1/14~1/12 of complete hexahedron width, and the length of sphenoid is complete hexahedron
Length.After filling along the adjacent block in link length direction, first drainage channel of the two forms the logical of an inverted triangle shape
Road, the making coarse sand in the first drainage channel 1 can produce preferable drainage effect because the permeability of coarse sand is stronger.Second draining is logical
Road 2 is located at lower section in the middle part of roadbed building block, and it is (aforementioned to cut off two four prisms cylinders by complete hexahedron cement base light road foundation building block
Sphenoid), the width of four prisms cylinder is the 1/8~1/6 of roadbed building block width, highly 1/8~1/ for roadbed segment heights
6, the length of four prisms cylinder is identical as roadbed building block length.Second drainage channel fills graded broken stone after building block is filled, and is
The compactness for guaranteeing graded broken stone, carries out lateral vibration compacting to it.Laterally, longitudinal drainage channel is after making is completed in building block
It is interconnected, the coarse sand and graded broken stone filled therebetween all have preferable drainage performance, and have preferably after overcompaction
Bearing capacity.
It the use of wet density is 600kg/m in the present embodiment3Cement base silt light material, cooperation when compression strength
As shown in table 2 below, wherein wet density be cement, water, foam, silt (in the present embodiment, using silt) after evenly mixing, system
The density of the cement base silt light material obtained, the density of cement base silt material can need to carry out match ratio according to highway layout
Design, the wet density range for commonly using cement base silt light material is 500kg/m3—1000kg/m3.Silt volume is silt
With the ratio of cement quality.
Table 2
Cement in table 2 is ordinary portland cement (PO.425), and foam is to be mixed by foaming agent with water 1:40, foam by
Foaming agent and water are mixed by fixed proportion to be made, and cement is using lime stone and clay as primary raw material, through the works such as calcining, levigate
Skill is made, foam density 50kg/m3~60kg/m3.It is existing by cement, silt, water by each material mixture ratio shown in table 2 in factory
It is mixed, cement silt slurry is made.Then foam is added in cement silt slurry, the cement base silt of corresponding wet density is made
Light material.After cement base silt light material is made, it is added in mold, is tentatively conserved to obtain building block green body, building block green body
Stacking is stacked after being cut, standing the techniques such as maintenance, can be according to required roadbed block strength, to determine water by table 2
The difference dosage of mud, water, foam, silt.
Embodiment 2
After a kind of cement base silt light road foundation building block is prefabricated in the factory, transport to construction site.A kind of cement original washing powder
Native light road foundation structure, as shown in Figure 4-Figure 6, including a kind of cement base silt light road foundation building block described in muti-piece, muti-piece institute
The roadbed building block stated is arranged as several layers, and the first drainage channel that each layer of roadbed building block is in a row arranged in rows and described
Setting is connected to the second drainage channel.
In cement base silt light road foundation building block, connected between adjacent two layers roadbed building block by connecting material, each layer
In, it is equally connected by connecting material between adjacent roadbed building block, connecting material is clay or lime, clay and lime cost
It is lower, there is preferable concatenation ability, and rigidity is less than the light road foundation building block of cement base silt, avoids that stress occurs in interface
It concentrates and destroys.
In cement base silt light road foundation building block, the roadbed building block of adjacent two layers is in road width direction and/or length side
It is arranged to the fissure of displacement, in each layer, the same fissure of displacement of the roadbed building block of adjacent two rows is arranged, and in the road structure formed in this way, contains
Roadbed building block 4 after cutting.
A kind of construction method of above-mentioned cement base silt light road foundation structure, including following content:
1) according to the requirement of roadbed design, the size, the number of plies, density of roadbed building block, cement base silt light material are determined
The corresponding match ratio of each density can refer to the following table 1:
Table 1
Alternatively, determining the quality of each composition in accordance with the following steps:
The wet density of cement base silt light material, wet density 500kg/m required for determining3-1000kg/m3；
Determine the ratio of mud, ratio of mud 0.5-0.6；
Determine that silt volume, silt volume are 0.2-0.4；
The percentage α of cement quality, the density p of ratio of mud b, cement are accounted for according to silt in cement slurry (silt)cAnd powder
The density p of soilsObtain cement quality M in every side's cement silt slurrycWith silt mass Ms, it is i.e. every that water consumption is obtained according to the ratio of mud
Water quality M in square cement silt slurryw, specific step is as follows；
RL=MC+MS+MW
In formula:
Silt accounts for the percentage of cement quality in α --- cement slurry (mixture of cement, water and silt)
B --- ratio of mud coefficient, the ratio of mud=1:b
Mc--- cement quality (kg/m in every side's cement silt slurry3)
Ms--- silt quality (kg/m in every side's cement silt slurry3)
Mw--- water quality (kg/m in every side's cement silt slurry3)
ρc--- the density (kg/m of cement3)
ρs--- the density (kg/m of silt3)
RL--- the density (kg/m of the quality of every side's cement paste, i.e. cement silt slurry3)
Y --- the first intermediate parameters, no concrete meaning
According to the wet density R of cement base silt light materialfw, foam density pa, cement silt slurry density obtain often
Foam quality m needed for square Foam lightweight soilf, silt quality ms, cement quality mc, water consumption mw, specific to calculate step such as
Under:
mw=Mw·(1-λ)
mc=Mc·(1-λ)
ms=Ms·(1-λ)
mf=Rfw-mw-mc-ms
In formula:
Rfw--- the wet density (kg/m of cement base silt light material3)
ρa--- the density (kg/m of foam3)
mw--- the quality (kg/m of water in every side's cement base silt light material3)
mc--- the quality (kg/m of cement in every side's cement base silt light material3)
ms--- the quality (kg/m of silt in every side's cement base silt light material3)
mf--- the quality (kg/m of every side's cement base silt light material foam3)
λ --- the second intermediate parameters, no concrete meaning
2) it carries out road excavation or High-filled emkankment slope retaining wall is built；
3) in the foundation pit of excavation or slope retaining wall, a roadbed building block is filled.
4) for convenient for construction, the width direction progress of roadbed building block filled along road.It is built having filled first roadbed
After block, along second, road width direction roadbed building block fissure of displacement making, fissure of displacement length is the 1/2 of this body length of building block.To guarantee
Lateral connection length, pave connecting material on the contact surface of first roadbed building block and second roadbed building block, and pave thickness
Degree is 1~3cm.The building block in road width direction is according to said method successively filled later.When the connecting material that paves, it is careful not to
The case where one drainage channel blocks, and avoids the occurrence of impeded drainage.
5) after the completion of the building block in road width direction is filled, the second draining using graded broken stone filling roadbed building block is logical
Road.For the compactness for guaranteeing rubble, vibration lateral rolling should be carried out after graded broken stone filling.It paves at the first drainage channel thick
Sand.
6) roadbed building block is built in succession along its length, to guarantee the bonding strength in length direction, with length direction
The building block side of connection will pave connecting material, and paving thickness is 1~3cm.It, should not be by roadbed building block when the connecting material that paves
One, the case where the second drainage channel blocks, and avoids the occurrence of impeded drainage.
7) according to above-mentioned steps, after having filled one layer of roadbed building block along link length and width direction, in first layer roadbed
Pave connecting material at the top of building block, fills coarse sand in the first drainage channel junction.
8) filling for second layer roadbed building block takes block in the link length direction fissure of displacement with the building block of first layer roadbed, remaining step
It is filled with first layer roadbed building block identical.
9) because being filled using the fissure of displacement, roadbed building block can cut by roadbed boundary fills up neat.
10) to improve speed of application, filling for second layer roadbed building block can be filled in first layer roadbed building block with foot
Start after enough workbenches.
It 11), should be in foundation pit before carrying out the building block of first layer roadbed and filling to prevent underground water in ground from immersing roadbed building block
Bottom is laid with waterproofing geomembrane.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of cement base silt light road foundation building block, which is characterized in that roadbed block material is cement base silt material, roadbed
Building block is rule body, and roadbed building block side is equipped with scarf, so that two roadbed building blocks, which are spliced, forms the first draining between the latter two
Channel, roadbed building block bottom side is along its length or width direction is additionally provided with the second drainage channel, the first drainage channel and second
The direction of drainage channel is mutually perpendicular to.
2. a kind of cement base silt light road foundation building block according to claim 1, which is characterized in that the roadbed building block material
Material includes cement, silt and foam.
3. a kind of cement base silt light road foundation building block according to claim 1, which is characterized in that the roadbed building block is
Side has the cuboid of the scarf；
Preferably, roadbed building block is the square that side has the scarf.
4. a kind of cement base silt light road foundation building block according to claim 3, which is characterized in that the scarf is set to
At the cuboid or the four edges of square side.
5. a kind of cement base silt light road foundation building block according to claim 1, which is characterized in that the roadbed building block is set
Second drainage channel described in having at least one.
6. a kind of cement base silt light road foundation structure, which is characterized in that of any of claims 1-5 including muti-piece
A kind of cement base silt light road foundation building block, roadbed building block described in muti-piece are arranged as several layers, and each layer of roadbed building block
In a row the first drainage channel arranged in rows and described and the connection setting of the second drainage channel.
7. a kind of cement base silt light road foundation structure according to claim 6, which is characterized in that the cement base silt
In light road foundation building block, connected between adjacent two layers roadbed building block by connecting material, in each layer, adjacent roadbed building block it
Between equally pass through connecting material connect；
Alternatively, the roadbed building block of adjacent two layers is in road width direction and/or length in the cement base silt light road foundation building block
The direction fissure of displacement is spent to be arranged, in each layer, the same fissure of displacement setting of the roadbed building block of adjacent two rows.
8. a kind of construction method of cement base silt light road foundation structure described in any one of claim 6-7, which is characterized in that
Including following content:
According to the requirement that road structure designs, size, the number of plies and the density of a kind of cement base silt light road foundation building block are determined, and
It constructs to roadbed building block；
It carries out road excavation or High-filled emkankment slope retaining wall is built；
Filling for first layer roadbed building block is carried out along the width direction and/or length direction of road；
Filling for second layer roadbed building block is carried out, the building block of second layer roadbed is in link length direction and the first layer roadbed building block fissure of displacement
Setting, and paving mode filling with first layer roadbed building block；
Successively carry out filling for upper subbase building block.
9. a kind of construction method of cement base silt light road foundation structure according to claim 8, which is characterized in that described
Carrying out production to roadbed building block includes the determination to each composition of roadbed building block:
The wet density of cement base silt light material, wet density 500kg/m required for determining3-1000kg/m3；
Determine the ratio of mud, ratio of mud 0.5-0.6；
Determine that silt volume, silt volume are 0.2-0.4；
According to silt in cement slurry (silt) account for the percentage of cement quality, the ratio of mud, the density of cement and silt density
Cement quality and silt quality in every side's cement silt slurry are obtained, is obtained in the i.e. every side's cement silt slurry of water consumption according to the ratio of mud
Water quality；
Every side's cement base is obtained according to the density of the wet density of cement base silt light material, the density of foam, cement silt slurry
Foam quality needed for silt light material, silt quality, cement quality, water consumption.
10. a kind of construction method of cement base silt light road foundation structure according to claim 9, which is characterized in that first
Filling for first layer roadbed building block is carried out along the width direction of road, along width direction, two pieces of adjacent roadbed strippings and slicings are wrong
It seams and sets；
Successively filling for roadbed building block is carried out then along the length direction of road, first drainage channel is formed, guarantees
In the second drainage channel connection of the adjacent two roadbeds building block of length direction of road；
After the completion of the roadbed building block of first layer is filled, the second drainage channel is filled using graded broken stone, uses coarse sand filling first
Drainage channel.
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