CN103866670B - Fabricated vehicle bearing pavement and construction method thereof - Google Patents

Fabricated vehicle bearing pavement and construction method thereof Download PDF

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Publication number
CN103866670B
CN103866670B CN201410070773.7A CN201410070773A CN103866670B CN 103866670 B CN103866670 B CN 103866670B CN 201410070773 A CN201410070773 A CN 201410070773A CN 103866670 B CN103866670 B CN 103866670B
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China
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road
road deck
pavement
deck
construction
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CN201410070773.7A
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Chinese (zh)
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CN103866670A (en
Inventor
齐虎
卢海陆
刘康
孙建运
宋中南
陈港
胡衷启
翟明会
丛峻
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中国建筑股份有限公司
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Abstract

The invention discloses a fabricated vehicle bearing pavement and a construction method thereof. The fabricated vehicle bearing pavement is formed by superposing, assembling and laying fabricated reinforced concrete plate members in double layers, wherein double-layer bidirectional steel reinforcement frameworks are uniformly distributed inside upper pavement slabs and lower pavement slabs; lifting rings are embedded on lower parts of the frameworks in advance; rubber films are laid between the upper pavement slabs and the lower pavement slabs; a wear-resistant steel fiber concrete layer is arranged on the upper parts of the upper pavement slabs. The construction method comprises the following steps: 1. fabricating reinforced concrete pavement members; 2. lifting and transporting the prefabricated pavement members; 3. flattening the roadbed, laying the lower pavement slabs, rubber films and upper pavement slabs sequentially, laying the pavement slabs in a manner of staggering from each other according to seams, namely the seams between the slabs are not communicated with one another. The construction quality is easily guaranteed, the prefabricated pavement member is light in structure, high in strength, and convenient to transport and construct, can be repeatedly used and is particularly suitable for laying temporary vehicle bearing roads on the construction site, the rubber films can achieve a buffer effect, the friction force between the pavement slabs can be increased, and the pavement slabs are prevented from slipping.

Description

A kind of assembled vehicle-mounted road surface and construction method thereof

Technical field

The invention belongs to assembled steel reinforced concrete pavement construction technical field, relate to a kind of repeatedly used prefabricated reinforced concrete pavement system, including road deck and construction technology thereof and road deck paving mode.It is mainly used in quick laying construction transport channel, it is ensured that passing through smoothly of construction heavy-duty vehicle.Improve construction road lay speed, for project under construction complete on schedule provide guarantee.After project construction completes, road surface plate can be reclaimed so that next time uses, improve the recycling rate of waterused of material, decrease the generation of building waste.

Background technology

In the cast-in-place recovery project of cement concrete pavement, owing to ordinary cement condenses, hardening is slow, the strength development time is long, it is generally required to fencing lawn reaches more than the 80% of design strength to concrete strength in 14 days, and can open to traffic.If on site construction on-the-spot employing cast-in-place concrete road surface, the duration can be delayed, particularly when after pavement damage cast-in-place concrete road surface repair get up the most relatively difficult, as used precast slab splicing road surface just can be greatly shortened the pavement construction time, its broken parts is changed by the road surface for damaging, and can carry on construction work at night, not affect the progress of construction work.It is all disposable that general reinforced concrete pavement is laid, and then needs for temporary road to be removed after a procedure, thus wastes substantial amounts of manpower and materials, and produce a large amount of building waste, works the mischief environment.If using lifting, the reusable road deck of convenient transportation, can further improve efficiency of construction, reducing cost, protect environment.

For heavy-duty vehicle, general prefabricated road surface can not meet current requirement, easily occurs sinking in road surface, needs road pavement to carry out processing to improve road surface bearing capacity.The employing double-layered road deck paving mode of this creativeness, greatly reduces the road surface soil pressure of heavy-duty vehicle wheel pressure, thus improves road surface bearing capacity so that road surface can meet the current requirement of heavy-duty vehicle.

Summary of the invention

For quick laying construction road, reduce generation and the destruction of land resource of building waste, convenience based on transport and the rapidity of construction, and improve the road surface that prefabricated road surface bearing capacity provides a kind of applicable heavy-duty vehicle to pass through, it is an object of the invention to, it is provided that a kind of assembled vehicle-mounted road surface and construction method thereof, reusable, bearing capacity is high, and the prefabricated concrete road surface being suitable for heavy-duty vehicle is laid, it is easy to quickly lays construction road and rushes to repair.

In order to realize above-mentioned task, the present invention uses following technical solution;

A kind of assembled vehicle-mounted road surface, formed by the assembling laying of precast rc slab module component, it is characterized in that: described precast rc slab module component is constituted double-layered structure by upper road deck and lower road deck, the inside of described upper road deck and lower road deck is evenly equipped with double-layer double-direction framework of steel reinforcement, and pre-buried suspension ring are arranged at bottom;Being equipped with rubber film between upper road deck and lower road deck, the top of described upper road deck has abrasion-resistant stee fiber concrete layer.

Described lower road deck is thinner than top panel thickness, and surface does not has steel fiber reinforced concrete.

The dislocation of described upper road deck is laid on the upper surface of lower road deck, covers the plate seam of lower road deck.

Described pre-buried suspension ring the right and left is symmetrical arranged, and is preferably provided with four.

The construction method of a kind of assembled vehicle-mounted road surface, it is characterised in that the method comprises the following steps:

Step one, prefabricated reinforced concrete road surface component, including upper road deck and lower road deck;

Step 2, the lifting of reinforced concrete pavement prefabricated components, transport;

Step 3, grading, first lay lower road deck, then lay rubber film, then lays upper road deck, and upper road deck 1 is laid with the lower road deck fissure of displacement, i.e. plate seam is the most through.

After described step 3, banket at the plate seam of upper road deck and jolt ramming, at the plate body both sides earth filling tamping of upper road deck.

In described step one, the prefabricating and constructing of upper road deck is as follows: install template, arranges double-layer double-direction framework of steel reinforcement, first cast steel fiber reinforced concrete layer, pours into a mould normal concrete, afterwards in structural base, be in structure upper, pre-buried suspension ring when pouring, lift in place after pre-buried suspension ring are cut off.

In order to improve road surface bearing capacity during the design of above-mentioned assembled steel reinforced concrete flag, it is to avoid under heavy-duty vehicle loads, road deck sink, and uses double-layered paving mode, is greatly improved road deck bearing capacity.

The present invention is laid in purpose to reduce situ wet operation, minimizing building waste, the destruction reducing land resource and quickening construction temporary road, devising can batch production prefabricated concrete flag prefabricated, reusable, thus improve efficiency of construction, emphasis solves techniques below problem.

The most suitably prepare material, particularly steel fiber reinforced concrete raw-material preferably and configuration.In order to improve wearability and the impact resistance on road surface, one layer of steel fiber reinforced concrete is laid on the surface of this prefabricated concrete flag.Due to the generation in steel fibre retardance original concrete crack in steel fiber reinforced concrete so that steel fiber reinforced concrete has the characteristics such as good anti-folding, shock resistance, resisting fatigue and shrinkage factor is little, good toughness, abrasion performance ability are strong.But the poor fluidity of steel fiber reinforced concrete compared with ordinary reinforced concrete, tackle corner parts immersion vibrator when pouring to vibrate, to ensure that it is closely knit, simultaneously the most rule of thumb and calculate, as necessary by experiment, determine volume water consumption, sand coarse aggregate ratio and dosage of steel fiber.

Optimizing construction technique: the factory prefabricating of prefabricated concrete flag can improve its efficiency of construction largely, in addition, construction technology that must also be reasonable in design and operation, make constructing operation simple, efficient and convenient, improves road pavement efficiency further.

The advantages such as the present invention prefabricated reinforced concrete pavement plate, lays and compared with method for maintaining with traditional road, have structural strength high, it is simple to transport, reusable, high construction efficiency, are in particular in the following aspects:

1) bearing capacity is high, show through finite element analysis, road deck can be substantially reduced the road surface soil pressure of heavy-duty vehicle wheel pressure after using double-layered laying, thus improve road surface bearing capacity, be truly realized roadbed without any process or the most smooth after spread this road deck and can meet heavy-duty vehicle and pass through requirement.

2) between upper and lower road deck, on the one hand one layer of rubber film of laying play cushioning effect and avoid upper and lower road deck direct collision, on the other hand improves the frictional force between road deck, it is to avoid skidding between road deck.

3) structure is slim and graceful, convenient transportation.Although structure is poured by armored concrete, but the volume of each piece is little, and therefore monolithic weight is not about 2 tons, transports more convenient.

4) Fast Installation, easy construction.Structure upper is provided with built-in fitting so that the lifting of this prefabricated reinforced concrete pavement plate is very convenient.When construction, road deck is lifted into smooth road surface, after having spliced, need not any connection between block with block and between block with basis, can use.

5) the required plant equipment of construction is few, and material usage saves, and low its of energy consumption can be reused, and is substantially reduced construction costs and other expenditure.Because prefabricated concrete flag is prefabricated in the factory, at the construction field (site), only grading need to be lifted and lays this prefabricated reinforced concrete road deck, to temporary road, recyclable after being finished, in case next time uses, save material usage further.

6) pavement construction effect on environment is few.Traditional pavement construction needs more construction machinery, produces bigger noise when construction machinery runs.Meanwhile, in traditional pavement engineering construction, waste material of buildings is more, including water conservancy, timber, packaging material, discarded mould etc..These refuses are buried under the ground, and can cause the pollution of subsoil water.The present invention is prefabricated at workshop, and refuse is less and can focus on, and has little to no effect job site environment.

7) wearability is good.Road crust of the present invention is steel fiber reinforced concrete surface layer, mixes a kind of heterogeneous composite material that the short steel fibre of random distribution is formed in normal concrete.The steel fibre of these random distributions can hinder the extension of inside concrete microcrack and the formation of macrocrack effectively, significantly improves the tension of concrete, bending resistance, shock resistance and anti-fatigue performance, thus is greatly improved the wearability on road deck top layer.

8) i.e. spreading i.e. use, open to traffic is early.Once laying construction is complete, can open to traffic immediately.Even can be open to traffic with construction limit, limit, beneficially conveniently the marching into the arena of construction machinery and Construction traffic, accelerating construction progress.The time that is open to traffic after construction of cement concrete road surface, the time that is open to traffic after asphalt concrete pavement construction, prefabricated concrete flag of the present invention can i.e. spread i.e. use more than 3 days, and even limit paving is just used more than 16 days.

9) dismounting is freely.Prefabricated concrete flag is reusable, can lay in advance, transports when needed and lays to scene.

10) technique is simple, and cost is relatively low, and prefabricated concrete flag uses ordinary reinforced concrete as preparing material, and the cost of material is low, and structure is cuboid Mold Making and pours the most very convenient.

11) structure upper is provided with steel fibre reinforced concrete laying, and steel fibre reinforced concrete laying improves wearability and the crack resistance on plate surface, prefabricated reinforced concrete pavement, thus improves the service life of structure.

12) applied widely.Prefabricated concrete flag is applicable to the various roadbeds with certain bearing capacity, can not only be used in the construction laying with interim matter transportation road, moreover it is possible to be used for rushing to repair the road destroyed in earthquake.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the distribution schematic diagram of pre-buried suspension ring;

Fig. 3 is the internal structure schematic diagram of upper road deck;

Fig. 4 is the internal structure schematic diagram of lower road deck.

The upper road deck of reference: 1-;Road deck under 2-;3-abrasion-resistant stee fiber concrete layer;4-double-layer double-direction framework of steel reinforcement;5-plate seam;The pre-buried suspension ring of 6-;7-rubber film.

Detailed description of the invention

See Fig. 1, Fig. 3, Fig. 4, this assembled vehicle-mounted road surface, formed by the assembling laying of precast rc slab module component, it is characterized in that: described precast rc slab module component is constituted double-layered structure by upper road deck 1 and lower road deck 2, the inside of described upper road deck 1 and lower road deck 2 is evenly equipped with double-layer double-direction framework of steel reinforcement 4, and pre-buried suspension ring 6 are arranged at bottom;Being equipped with the rubber film 7 that a layer thickness is 2mm between upper road deck 1 and lower road deck 2, the top of described upper road deck 1 has the abrasion-resistant stee fiber concrete layer 3 that a layer thickness is about 5cm.

Described lower road deck 2 is thinner than top panel 1 thickness, and surface does not has steel fiber reinforced concrete.

The dislocation of described upper road deck 1 is laid on the upper surface of lower road deck 2, covers the plate seam 5 of lower road deck 2.

See pre-buried suspension ring 6 the right and left described in Fig. 2 to be symmetrical arranged, be preferably provided with four.

The construction method of a kind of assembled vehicle-mounted road surface, it is characterised in that the method comprises the following steps:

Step one, prefabricated reinforced concrete road surface component, including upper road deck 1 and lower road deck 2;

Step 2, the lifting of reinforced concrete pavement prefabricated components, transport;

Step 3, grading, first lay lower road deck 2, then lays rubber film 7, then lays upper road deck 1, and upper road deck 1 is laid with lower road deck 2 fissure of displacement, i.e. plate seam 5 is the most through.

After described step 3, banket at the plate seam 5 of upper road deck 1 and jolt ramming, at the plate body both sides earth filling tamping of upper road deck 1.

In described step one, the prefabricating and constructing of upper road deck 1 is as follows: install template, arranges double-layer double-direction framework of steel reinforcement 4, first cast steel fiber reinforced concrete layer 3, pours into a mould normal concrete, afterwards in structural base, be in structure upper, pre-buried suspension ring 6 when pouring, lift in place after pre-buried suspension ring 6 are cut off.

Considering reusable needs during the design of above-mentioned assembled steel reinforced concrete flag, assembled steel reinforced concrete flag longitudinal length about 3m, transverse width about 2m, thickness are divided into 0.15m, 0.1m two kinds, and gross weight is respectively 2.3 tons, 1.5 tons.The length and width of described upper road deck 1 are preferably arranged to 3m × 2m, and thickness is preferably arranged to 0.1m~0.15m.The thickness of described lower road deck 2 is less than the thickness of described road deck 1.The thickness of described steel fiber reinforced concrete layer is 4~6cm, is preferably arranged to 5cm.

According to the version of road deck, the present invention, based on finite element theory, sets up FEM (finite element) model and prefabricated concrete flag is carried out mechanical analysis, verify the reliability of its structural strength.

For steel fibre surface layer, if road surface is upwards when pouring, the relatively thick road surface of easily emerging of steel fibre diameter, having influence on evenness of road surface, in order to avoid problems, when pouring, road surface is down, so processing, body structure surface flatness after demoulding is higher, is not required to do any process and can ensure planarization.

Claims (5)

1. an assembled vehicle-mounted road surface, formed by the assembling laying of precast rc slab module component, it is characterized in that: described precast rc slab module component is constituted double-layered structure by upper road deck (1) and lower road deck (2), show through finite element analysis, road deck uses double-layered structure to lay the road surface soil pressure that can reduce heavy-duty vehicle wheel pressure, the inside of described upper road deck (1) and lower road deck (2) is evenly equipped with double-layer double-direction framework of steel reinforcement (4), and pre-buried suspension ring (6) are arranged at bottom;Rubber film (7) it is equipped with between upper road deck (1) and lower road deck (2), described rubber film (7) avoids road deck (1) and lower road deck (2) direct collision, frictional force between road deck (1) and lower road deck (2) in raising, the top of described upper road deck (1) has abrasion-resistant stee fiber concrete layer (3), described abrasion-resistant stee fiber concrete layer (3) is to mix a kind of heterogeneous composite material that the short steel fibre of random distribution is formed in normal concrete, the short steel fibre of described random distribution can hinder the extension of inside concrete microcrack and the formation of macrocrack;
Described lower road deck (2) is thinner than upper road deck (1) thickness, and surface does not has steel fiber reinforced concrete;
The dislocation of described upper road deck (1) is laid on the upper surface of lower road deck (2), covers the plate seam (5) of lower road deck (2), need not any connection, i.e. spread and i.e. use between block with block and between block with basis;In temporary road, dismounting freely, can recycling after being finished.
2. the assembled vehicle-mounted road surface as described in claim 1, it is characterised in that described pre-buried suspension ring (6) the right and left is symmetrical arranged.
3. the construction method of assembled vehicle-mounted road surface as described in claim 1-2 any one, it is characterised in that the method comprises the following steps:
Step one, prefabricated reinforced concrete road surface component, including upper road deck (1) and lower road deck (2);
Step 2, the lifting of reinforced concrete pavement prefabricated components, transport;
Step 3, grading, first lay lower road deck (2), then lay rubber film (7), then lays upper road deck (1), and upper road deck 1 is laid with lower road deck (2) fissure of displacement, i.e. plate seam (5) is the most through.
The construction method of assembled vehicle-mounted road surface the most according to claim 3, it is characterised in that: after described step 3, banket at plate seam (5) place of upper road deck (1) and jolt ramming, at the plate body both sides earth filling tamping of upper road deck (1).
The construction method of assembled vehicle-mounted road surface the most according to claim 3, it is characterized in that: in described step one, the prefabricating and constructing of upper road deck (1) is as follows: install template, arranging double-layer double-direction framework of steel reinforcement (4), first cast abrasion-resistant stee fiber concrete layer (3), pours into a mould normal concrete afterwards, in structural base, be in structure upper, pre-buried suspension ring (6) when pouring, lift in place after pre-buried suspension ring (6) are cut off.
CN201410070773.7A 2014-02-28 2014-02-28 Fabricated vehicle bearing pavement and construction method thereof CN103866670B (en)

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Application Number Priority Date Filing Date Title
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CN103866670B true CN103866670B (en) 2017-01-11

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CN104233914A (en) * 2014-08-21 2014-12-24 四川金锋建设有限公司 Construction method of portable type country road hardened pavement
CN104947561A (en) * 2015-06-17 2015-09-30 天津住宅集团建设工程总承包有限公司 Precast concrete assembling road construction method
CN107881912B (en) * 2017-11-03 2019-04-16 内蒙古工业大学 Assembled steel bridge face structure and construction method containing buffer layer, rigid layer, water-proof antifriction layer
CN108049275A (en) * 2017-11-28 2018-05-18 上海中冶环境工程科技有限公司 A kind of permeable prefabricated board of monoblock type self-locking type and its preparation method and application
CN108547193A (en) * 2018-05-24 2018-09-18 贾守训 A kind of quick laying road of dangerous situation
CN108951340A (en) * 2018-06-22 2018-12-07 苏州市广卫特种水泥制品有限公司 A kind of steel fiber reinforced concrete sponge urban ecology guidance tape and preparation method thereof
CN108915248A (en) * 2018-07-24 2018-11-30 福州大学 The continuous construction method of fiber is realized in concrete structure seam crossing using mold
CN109440571A (en) * 2018-12-06 2019-03-08 中国矿业大学 The construction method for building road is faced in a kind of laying of prefabricated board
CN110105784A (en) * 2019-04-30 2019-08-09 长安大学 A kind of regenerated engineering assembled road surface and its laying method
CN110295523A (en) * 2019-07-10 2019-10-01 叶尔丰 Road rigid pavement precast concrete block
CN110409244A (en) * 2019-08-23 2019-11-05 中国建筑第七工程局有限公司 A kind of prefabricated road deck of composite bearing and prefabricated pavement construction method

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FR2846981A1 (en) * 2002-08-22 2004-05-14 Clotilde Martine Griguer Prefabricated system for temporary vehicle access tracks or platforms on soft ground comprises modular plastic panels in assembled layers
CN100460597C (en) * 2006-02-21 2009-02-11 中国民用航空学院 Paviny type jointable prefabricated road-face brick combined structure
CN102242537A (en) * 2010-11-29 2011-11-16 有利华建材(惠州)有限公司 Cyclically used temporary pavement platen, and method for paving temporary pavement therewith
CN102619152A (en) * 2012-03-08 2012-08-01 中天建设集团有限公司 Split mounting type prefabricated reinforced concrete construction temporary road
CN103334361B (en) * 2013-06-26 2015-10-28 中国建筑股份有限公司 Prefabricated hollow steel bar concrete wear resistant road surface plate and pavement construction method
CN203768757U (en) * 2014-02-28 2014-08-13 中国建筑股份有限公司 Novel assembled vehicle bearing pavement

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