CN207314077U - A kind of precast rc slab block - Google Patents
A kind of precast rc slab block Download PDFInfo
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- CN207314077U CN207314077U CN201720087766.7U CN201720087766U CN207314077U CN 207314077 U CN207314077 U CN 207314077U CN 201720087766 U CN201720087766 U CN 201720087766U CN 207314077 U CN207314077 U CN 207314077U
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Abstract
The utility model provides a kind of precast rc slab block, the rectangle which is built-in arrangement of reinforcement, edge is the concreting for strengthening arrangement of reinforcement；Positive four sides are chamfering, and side is equipped with hoisting ring, facilitates mechanical hoisting to construct.Work progress road pavement first carries out based process and is laid with ballast aggregate bed course, 10% cushion lime, SBS malthoid separation layers respectively, then precast rc slab block is laid with according to the requirement that half range sealing spelling, half range space are set, then done in side, then the measure of C25 plain concrete corner protectors is done in side, completes engineering.Heavily loaded temporary road is carried out using the precast rc slab block of the utility model to be laid with, low cost, short time limit, save the energy, environmental protection.
Description
Technical field
Precast rc slab block is the utility model is related to, and heavy duty is laid with using precast rc slab block and is faced
When road construction method.
Background technology
The hardening area of construction site plant area is generally higher than the 50% of temporary site area, wherein temporary road hardening area
Approximately more than 30%, method for curing is mostly to pour the concrete that thickness is not less than 200mm., it is necessary to all remove after the completion of engineering, and
Produce a large amount of discarded objects.The concrete that hard surface is poured, is not only the energy and largely consumes, and component is once to amortize,
Cost is big.Including cement manufacture, concrete prepare, transport, pour, vibrate, conserving material etc.；Dismounting and transportational process,
The energy is not only consumed, and discarded object is deposited in natural environment, and environment cannot dissolve naturally, and the carrying for also increasing environment is born
The process such as load, " concrete that hard surface is poured ", " dismounting and transportational process " is energy consumption process.The utility model combines
Practical Project, cast-in-place concrete construction road is replaced using finished product " precast rc slab block ", particularly heavy-load road, real
Existing " precast rc slab block " is reused, and reduces energy consumption to greatest extent, reduces the carrying burden of environment.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to realize the target of sustainable development with environment harmonious coexistence,
Quasi-step matrix Practical Project, cast-in-place concrete construction road is replaced using finished product " precast rc slab block ", particularly heavy duty
Road, realizes that " precast rc slab block " repeatedly uses, and reach reduces energy consumption to greatest extent, and reduces ring
The carrying burden in border.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of precast rc slab block,
It is characterized in that：The rectangle that the plate is built-in arrangement of reinforcement, edge is the concreting for strengthening arrangement of reinforcement；The front four of the plate
While being chamfering, symmetrical two sides are equipped with two symmetrical semi-cylindrical recesses, have reinforcing bar lifting in the middle part of the groove
Ring, the inside of the hoisting ring are cast in plate.
Further, the specification of the plate is 1600mm × 1600mm × 160mm.
Further, the concrete grade that the plate pours is C50.
A kind of construction method that heavily loaded temporary road is laid with using precast rc slab block, it is characterised in that：Including
Following steps：
(1), road bed is handled；
The first step, it is deep by 400mm is dug under the original soil of place, and smooth compacting, compacting factor>95%；Second step, is laid with ballast aggregate
Bed course, and tamp, compacted thickness 200mm；3rd step, is laid with 10% cushion lime, and tamps, compacted thickness 200mm；4th
Step, is laid with SBS malthoids separation layer together, and effect is isolation basis and precast rc slab block, and prevents rainwater, sewage
Into ground layer, so as to cause bearing capacity to weaken；
(2), precast rc slab block assembling process；
Road surface after step (1) processing, prepares to be laid with precast rc slab block, according to the wide cut and length on road surface
Degree arranges precast rc slab block, and by the both sides with hoisting ring along longitudinal arrangement, spelling is sealed using half range road surface,
In addition half range space is set, and reinforcing bar grate is covered on space；In order to fix precast rc slab block after the completion of laying, no
To making precast rc slab block that in-plane displancement occur the frequent vibrations because of heavy-duty vehicle, take that C25 elements are done in side is mixed
The measure of solidifying soil corner protector.
Preferably, space width is 320mm, the lower face of the reinforcing bar grate is equipped with some cross reinforcings, some
The width of the cross reinforcing and space equivalent width so that cross reinforcing is just as in space.
Preferably, be laid with SBS malthoids is not less than 100mm every lap width.
The utility model has the advantage of：
1st, the precast rc slab block of the utility model design uses concrete grade inside to have arrangement of reinforcement, and side for C50
For edge to strengthen arrangement of reinforcement, positive four side chamferings, plate can bear 50 tons/㎡ of area load in itself；
2nd, according to the requirement of live different zones, design and rush car region, road area, the standard row of machining area
Cloth assembled scheme；
3rd, the space splicing that half range is arranged to, is connected with the gutter in roadside, can be by the appearance vehicle rinsing such as earthwork car
Muddy water be exhausted directly in gutter, by gutter in the three-level sedimentation basin being discharged on the right side of road so that the road surface has
Rinse the function of vehicle；
4th, reinforcing bar grate is covered on space, prevents tire from destroying the external corner of " precast rc slab block ".
5th, take and do the measure of C25 plain concrete corner protectors in precast rc slab block side, it is " pre- to not only act as protection
The effect of reinforced concrete plate processed ", and the processed ground of protection is from the erosion of rainwater, sewage, moreover it is possible to fixation is " prefabricated
The position of reinforced concrete plate "；
6th, carry out heavily loaded temporary road using the precast rc slab block of the utility model to be laid with, low cost, duration
Short, the saving energy, environmental protection.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, describe below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is basement process diagrammatic cross-section in the utility model work progress.
Fig. 2 is a kind of splicing schematic diagram of precast concrete plate in the utility model.
Fig. 3 is the enlarged drawing of the utility model precast concrete plate splicing.
Wherein：1st, plate；2nd, groove；3rd, hoisting ring；4th, reinforcing bar grate.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
Embodiment one
Tianjin engineering overall floorage：136115㎡；Planned land use area：26837㎡；Excavation of foundation pit area：21300
㎡；Temporary site area：8456㎡；Temporary road area：3946㎡；Steel bar meter area area：784㎡；Carpenter processing district face
Product：275㎡.
A kind of precast rc slab block, it is characterised in that：The plate 1 is built-in arrangement of reinforcement, edge is to strengthen arrangement of reinforcement
The rectangle of concreting；Four side of front of the plate is chamfering, and symmetrical two sides are equipped with two symmetrical semicircles
Cylindrical groove 2, has reinforcing bar hoisting ring 3 in the middle part of the groove, the inside of the hoisting ring is cast in plate.The plate
Specification is 1600mm × 1600mm × 160mm.The concrete grade that the plate pours is C50.
To realize that " precast rc slab block " repeatedly uses, reach reduces energy consumption to greatest extent, and
The purpose of reducing the carrying burden of environment, intends replacing part cast-in-place concrete construction using finished product " precast rc slab block "
Road, particularly heavy-load road.
" precast rc slab block " specification is 1600 × 1600 × 160；Concrete grade is C50；Inside have and match somebody with somebody
Muscle, and edge is reinforcement arrangement of reinforcement；Positive four side chamferings.Plate can bear 50 tons/㎡ of area load in itself.
The present embodiment selects heavy-duty vehicle to be laid with " precast rc slab by the highest heavy-load road section of the frequency
Block ".Main selection amounts to 34 pieces, 87.04 ㎡ on the inside of the gate of north side and on the turnpike road of the inner side at southern side gate.
1st, it is laid with scheme
1.1 basement process
Basement process is divided into the processing of four steps.The first step, it is deep by 400mm is dug under the original soil of place, and smooth compacting, compacting factor
>95%；Second step, is laid with ballast aggregate bed course, and tamps, compacted thickness 200mm；3rd step, is laid with 10% cushion lime, and rams
It is real, compacted thickness 200mm；4th step, is laid with SBS malthoids separation layer together, and effect is isolation basis and " prefabricated reinforced concrete
Plate ", and prevent rainwater, sewage from entering ground layer, so as to cause bearing capacity to weaken.
The purpose of basement process mainly has two aspects.First, improving the bearing capacity of foundation soil, reach and " precast reinforced coagulation
Native plate " rigidity should be not less than the requirement of 50 Dun/㎡ of area load to the bearing capacity of adaptation；Second, make foundation soil uniform properties, with
Achieve the purpose that uniform settlement.
Basement process diagrammatic cross-section such as Fig. 1：
The processing of 1.2 " precast rc slab block " road surface sides
To protect the side external corner of " precast rc slab block ", take and arranging for C25 plain concrete corner protectors is done in side
Apply, can play the role of protect " precast rc slab block ", while can also protect processed ground from rainwater,
The erosion of sewage.
The spelling mode of 1.3 " precast rc slab blocks "
The breadth of road is 3200mm, by two pieces of " precast rc slab block " spellings into road breadth, is divided into left half
Width, right half range.Wherein, left half range road surface is close joint spelling；Right half range is then set for space, and space width is 320mm.
The space of right half range is connected with the gutter on the right side of road, can be direct by the muddy water of the appearance vehicle rinsing such as earthwork car
It is discharged in gutter, by gutter in the three-level sedimentation basin being discharged on the right side of road.Such setting so that the road surface has
Rinse the function of vehicle.
In order to protect " precast rc slab block ", reinforcing bar grate 4 is covered on space, it is " prefabricated to prevent that tire from destroying
The external corner of reinforced concrete plate ".
In addition, for fixation " precast rc slab block ", it is unlikely to make " pre-manufactured steel because of the frequent vibrations of heavy-duty vehicle
In-plane displancement occurs for reinforced concrete plate ", takes the measure that C25 plain concrete corner protectors are made in side, it is " prefabricated to not only act as protection
The effect of reinforced concrete plate ", and the processed ground of protection is from the erosion of rainwater, sewage, moreover it is possible to fixed " pre-manufactured steel
The position of reinforced concrete plate ".(this diagram merely illustrates an application region) as shown in Figure 2.
2nd, scheme is implemented
2.1st, surveying setting-out
3.1.1 organize the measurement control point that surveying party is provided by designing institute to carry out repetition measurement, engineering survey is established after review is errorless
Amount control net, the measurement control that a face that carried out to engineering is combined.
3.1.2 construction lofting measurement is carried out, makes construction road center line, and make level datum points as whole engineering
Control point.Measurement is intended to close every time, strictly controls closure error.Road basis both sides, which are subject to design, has a lot of social connections, outside respectively
Widen, release the roadbed gray line of road, excavated according to this line into walking along the street groove.
2.2nd, earth excavation
Excavate and carried out with machinery, hand fit.Before excavation, the order of excavation and require from site operation person to driver and
Earthwork work is told somebody what one's real intentions are in detail.Administrative staff should at the scene command and answer running check absolute altitude and position position during shoveling.Open
Digging will ensure to work continuously, and linking process is smooth.
Desurfacing ploughs plant soil, deep by 400mm is dug under the original soil of place, excavates until underground is old native (projected depth).Underdrain,
Closed conduit part must be also removed to old soil, foundation trench excavation width slope on request.
2.2nd, road groove rolls inspection
After the completion of road groove excavates, roadbed ponding is excluded, roadbed water content is measured and is dried, mechanical compacting is carried out and adopts
Roadbed dry density, compacting factor are tested with core cutter method>95%.
2.3rd, base layer construction
Base layer construction is divided into two steps, and the first step, is laid with ballast aggregate bed course, and tamps, compacted thickness 200mm；Second step, is laid with
10% cushion lime, and tamp, compacted thickness 200mm.
By design requirement, using a certain proportion of lime and soil, in the case of optimum moisture content, fully mix and stir, reach equal
It is even, face color is consistent.Dirt is agglomerating to hold, two fingers pinch i.e. dissipate subject to.Earth material uses cohesive soil, and the content of organic matter must not in soil
More than 5%, grogs should sieve, and particle not should be greater than 15%.
Lime uses more than III grade fresh lime, using preceding lime digestion and sieves, particle is not greater than 5mm.Must not
Uncooked quick lime grain is accompanied, excess moisture must not be contained.
Dirt should be segmented, back-filling in layers, be tamped using machinery, and pass is confirmed by the dry density of design requirement, should be reached and be set
Count desired dry density.It after the completion of dirt, must not be drenched with rain, must not be soaked by water, and make provisional covering, every layer of construction of dirt
After, check the dry density of dust foundation.
It is uniform using lime, flyash, stone progress mechanical agitation, and the moisture content of double-lime litho is controlled, using tipping bucket
Car is transported to scene, is paved smooth, and layering, segmentation grinding compacting, compaction in layers coefficient meet design requirement, and surface carries out film
Covering, watering maintenance are no less than 7d.
2.4th, SBS malthoid separation layers are laid with
Together, SBS malthoids lap width is not less than 100mm to dry-laid SBS malthoids separation layer.
Effect is isolation basis and " precast rc slab block ", and prevents rainwater, sewage from entering ground layer, so that
Bearing capacity is caused to weaken.
2.5th, it is laid with " precast rc slab block "
According to spelling designing scheme, block-by-block is laid with " precast rc slab block "." precast rc slab block " is spelled
Seam must be close.Construction is hung using kart.
Finally, the measure for C25 plain concrete corner protectors being made in side using taking, protection " precast rc slab block "
Side external corner, protects erosion of the processed ground from rainwater, sewage, and the position of fixed " precast rc slab block "
Put.
Embodiment two：
The base treatment of construction is identical with embodiment one, the difference is that being laid with precast rc slab block, uses
200mm thickness C25 concrete is laid with.Because when the road of contrast is the road surface of same bearer power, using comparativity.
Embodiment one and embodiment two are contrasted：
Contrast content：Then only contrast " precast rc slab block " is mated formation and " 200mm thickness C25 concretings and is torn open
Except " cost it is poor.
Control methods：The amortization charge for being converted into every square meter is compared.Embodiment one considers according to 4 engineerings of turnover,
Consider according to 4 amortizations；And second embodiment cannot be used in turn, i.e., consider according to 1 amortization.
This engineering uses embodiment one, uses 34 pieces, 87.04 ㎡ of " precast rc slab block " altogether, therefore according to
87.04 ㎡ are calculated, and finally conversion is per square meter cost.
Every piece of " precast rc slab block " price of showing up (urban areas) is 620 yuan/block；One machinery is mated formation machine-team
Take 400 yuan；By calculating, per 242.1875 Yuan/㎡ of square meter unit price；It is 61.7 Yuan/㎡ according to 4 amortization charges.
In embodiment two, C25 concrete, containing pumping cost, about 300 yuan/m of unit price3；C25 concrete removal expenses, unit price
About 45 yuan/m3；By calculating, per 69.0 Yuan/㎡ of square meter unit price.(being calculated according to hardening 87.04 ㎡ of area).
Comparing result：
1. save 7.3 Yuan/㎡ per square meter hard surface.
2. the equivalent calculating per square meter construction area, calculates, building site is typically constituted from red line according to building floor area ratio 2.0
The 1/3 of area, and harden road account for the 30% of temporary site area, then 10000 square meter architectural engineering, its construction site it is interim
Path area is 10000 ÷ 2 × 30% × 30%=450 ㎡, then often completes 10000 square meter architectural engineerings, can save fund
3285 yuan.
3. being converted according to the output value, slightly fitting up 2300 yuan of high-rise residential engineering square meter cost according to market in 2015 calculates, 100,000,000
First output value engineering equivalent to completing to build 43478.26 ㎡, then often complete 100,000,000 yuan of output value engineerings can save 4.347826 ×
It is 3285=14282.609 first.
As it can be seen that the economic benefit of wide popularization and application " precast rc slab block " paved road is very notable.
Analysis of Time-limit
The basement process of two schemes is the same, therefore the process of this Partial Jobs and duration are the same, it is not necessary into
Row compares；Here the duration of different way parts more than ground is only compared.
Embodiment one, is mated formation using machinery, and human assistance is completed, and speed is fast, it is not necessary to conserves, after the completion of mating formation i.e.
It can come into operation.By taking this engineering as an example, its pavement process only 1 day used time.If large area is mated formation, more machineries can be put into
Used time mats formation, and can into field, direction is mated formation from doorway, it is not necessary to the initial auxiliary construction roads of other interim place mats, and
It can change with project progress, realize the road movement in field.
Embodiment two：Poured using as pump, human assistance vibrates, receipts face and maintenance are completed, and reaching can after intensity
Come into operation.Building operation can be completed for general 1 day, but conserve different then with season.The temperature such as general spring and summer autumn are more than 15 degree
Season, it is necessary to which time of 10 days or so, can come into operation, and winter then needs the longer time, 15 days or so the moon, even
Longer time (when negative temperature conservation), necessity are also to take the measure (expense higher) of addition additive.
Duration contrasts：Analyzed more than, scheme one saves the duration of maintenance than scheme two, is at least 10 days.This can
To greatly improve reaction speed of the project as construction unit, enterprise is established the good market image have it is positive, far-reaching
Influence.
In terms of social effect：
Save energy consumption：The tool of construction site temporary road is realized, and makes it possible to be used in turn, according to week
Turn 4 calculating, material consumption total amount reduces 3/4, directly reduces energy consumption, i.e., in 4 same inputs one in making allowances for engineering
It is secondary, it is corresponding that 69 × 3=207 Yuan/㎡ are saved per square meter.
Environmental protection to greatest extent：Because realizing the tool of construction site temporary road, and it is used in turn, then not
Dismantling concrete road surface is needed, also just reduces the yield of 3/4 building waste, greatly alleviates the carrying pressure of environment.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify the technical solution described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical solution of type.
Claims (3)
- A kind of 1. precast rc slab block, it is characterised in that：The plate is built-in arrangement of reinforcement, edge is the coagulation for strengthening arrangement of reinforcement The rectangle that soil pours；Four side of front of the plate is chamfering, and symmetrical two sides are equipped with two symmetrical semi-cylindricals Groove, has reinforcing bar hoisting ring in the middle part of the groove, the inside of the hoisting ring is cast in plate；The side external corner of plate is set There are C25 plain concrete corner protectors；Road breadth is made of two pieces of precast rc slab blocks, including left half range and right half Width；Wherein, left half range road surface is close joint spelling；Right half range is then set for space, the gutter on the right side of the space of right half range and road It is connected, reinforcing bar grate is stamped on space.
- A kind of 2. precast rc slab block according to claim 1, it is characterised in that：The specification of the plate For 1600mm × 1600mm × 160mm.
- A kind of 3. precast rc slab block according to claim 1, it is characterised in that：The plate pours mixed Solidifying soil is marked as C50.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720087766.7U CN207314077U (en) | 2017-01-20 | 2017-01-20 | A kind of precast rc slab block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720087766.7U CN207314077U (en) | 2017-01-20 | 2017-01-20 | A kind of precast rc slab block |
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| Publication Number | Publication Date |
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| CN207314077U true CN207314077U (en) | 2018-05-04 |
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ID=62436621
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758658A (en) * | 2017-01-20 | 2017-05-31 | 天津住总建筑集团有限公司 | A kind of construction method of precast rc slab block and the heavily loaded temporary road of laying |
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2017
- 2017-01-20 CN CN201720087766.7U patent/CN207314077U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758658A (en) * | 2017-01-20 | 2017-05-31 | 天津住总建筑集团有限公司 | A kind of construction method of precast rc slab block and the heavily loaded temporary road of laying |
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Address after: 300300 8 Ping Ying Road, Dongli District, Tianjin Patentee after: Tianjin General Group Co., Ltd. Address before: 300300 Binying Road No. 8, Dongli District, Tianjin 5032-39, Binhai Commission. Patentee before: Total Group Co.,Ltd that builds is lived in Tianjin |