CN203593925U

CN203593925U - Dam-type pavement framework

Info

Publication number: CN203593925U
Application number: CN201320691532.5U
Authority: CN
Inventors: 唐国安; 邓红波; 刘结义; 郭健; 王新夏; 郦世平
Original assignee: HUNAN UNIVERSITY DESIGN INSTITUTE Co Ltd
Current assignee: HUNAN UNIVERSITY DESIGN INSTITUTE Co Ltd
Priority date: 2013-11-05
Filing date: 2013-11-05
Publication date: 2014-05-14
Anticipated expiration: 2023-11-05

Abstract

A dam-type pavement framework integrally adopts a symmetric dam-type trapezoidal structure. The dam-type trapezoidal structure is formed from the bottom to the top; the included angles between the two bevel edges of the dam-type trapezoidal structure and a road bed are 65 to 75 degrees; the symmetric dam-type trapezoidal structure adopts a multilayered composite layer structure, and comprises a sand base layer, a lower reinforced concrete layer, an asphalt packed bed and an upper reinforced concrete layer from the bottom to the top in sequence; the thickness ratio among the functional layers is 3:5:2:3; square stabilizing blocks are uniformly distributed on the lower surface of the lower reinforced concrete layer; the edges of the square stabilizing blocks are 400 to 600 mm; #-shaped grooves are formed in the lower surface of the upper reinforced concrete layer. The dam-type pavement framework has the advantages that the flexibility is excellent; the upward, downward and lateral shearing resistance is high; the service cycle of a pavement as well as safety and comfort of driving can be improved effectively.

Description

A kind of dam-type road surface framework

Technical field

The utility model relates to road structure field, is specially a kind of convenient construction and is convenient to the dam-type road surface framework of safeguarding.

Background technology

In the prior art, road structure is generally flexible pavement or cement concrete pavement, and wherein, cement concrete ground is rigid pavement, have advantages of that price is high, be not subject to that temperature height affects, intensity is high, but difficulty of construction is high, road-ability is poor.

The problem existing in order to solve cement pavement, present stage, express highway pavement structure types adopted pitch or the road surface take pitch as main material more, this road surface mostly is semi-rigid or flexible pavement planeness is high, drive a vehicle comfortable, noise is little, convenient and quick construction, maintenance is fast, but also exist, aging speed is fast, life cycle is short, under hot conditions, heat absorption causes surface temperature too high, easily produces in the process of moving rut; Ftracture and easily produce on road surface under cryogenic conditions, and these all have influence on the safety of Vehicle Driving Cycle, and, along with the growth of service time, flexible pavement also can occur that pitch particle comes off, embrittlement, problems of crack, easily have influence on the application life of highway, also increased the maintenance cost in later stage.

Utility model content

The technical problem that the utility model solves is to provide a kind of dam-type road surface framework, take steel concrete as road surface base material, coordinate dam-type structure and buffering sand bed, the effectively advantage of combined with steel reinforced concrete road surface and flexible pavement, to solve the shortcoming in above-mentioned background technology.

The technical problem that the utility model solves realizes by the following technical solutions:

A kind of dam-type road surface framework, the dam-type trapezium structure that its framework entirety is a symmetry, this dam-type structural framing moulding from bottom to top, article two, the angle of hypotenuse and roadbed is 65 ~ 75 °, for MULTILAYER COMPOSITE layer structure, be followed successively by from bottom to top husky basic unit, subordinate's reinforced concrete floor, pitch packed layer and higher level's reinforced concrete floor, and the ratio of each functional layer thickness is 3:5:2:3, simultaneously, on described subordinate reinforced concrete floor soffit, be evenly equipped with square stable piece, the length of side of this square stable piece is 400 ~ 600mm, described higher level's reinforced concrete floor forms groined type groove at soffit.

Dam-type of the present utility model road surface framework is repeatedly moulding in the time of construction, the moulding of its every layer structure independence is in order to guarantee its surface finish, and in the time of moulding higher level reinforced concrete floor, when only needing pitch packed layer seventy percent dry, forming operation can be carried out, its pitch packed layer and the higher level's reinforced concrete floor degree of compaction at groined type groove place can be effectively guaranteed.

In the utility model, the use material of described husky basic unit adopts the thinner sea sand of particle diameter, and does not adopt river sand as far as possible, to improve the stability of its road surface framework.

In the utility model, the length of side of described square stable piece is preferably 500mm, for polythene material is molded directly within subordinate's reinforced concrete floor soffit.

In the utility model, the degree of depth of described groined type groove is 1/10 ~ 1/6 of higher level's steel concrete layer thickness.

After the complete global formation of frame construction of the present utility model, can fill and pile up by cement mortar in its both sides, to improve the side direction anti-shear performance of its this frame construction.

Beneficial effect: the utility model is rational in infrastructure, road surface favorable working performance, can meet 100 tons of following load Vehicle Driving Cycles of five axle full weights, life cycle is long, in life cycle, cracky is loosening on road surface, and service life is more of a specified duration, and consolidation is got on road surface, vehicle on surface by time substantially there is no a pause and transition in rhythm or melody sense, greatly improved safety and the comfortableness of driving.

Accompanying drawing explanation

Fig. 1 is the left side tangent plane detailed drawing of the utility model preferred embodiment.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Referring to the left side tangent plane detailed drawing of the preferred embodiment of a kind of dam-type road surface framework of Fig. 1, in the present embodiment, road surface framework is symmetrical structure, its the right structure and left side symmetrical configuration, article two, the angle of hypotenuse and roadbed is 70 °, in the framework of road surface, comprise husky basic unit 5 from bottom to top, subordinate's reinforced concrete floor 4, pitch packed layer 3 and higher level's reinforced concrete floor 2, wherein, husky basic unit 5 is molded over roadbed 6 tops, its thickness is 150mm, and subordinate's reinforced concrete floor 4 thickness are 250mm, and be evenly provided with at its soffit the square stable piece that some length of sides are 500mm.

And pitch packed layer 3 is the 3rd formable layer layer, thickness is 100mm, for the direct moulding by casting of petroleum bitumen, and higher level's reinforced concrete floor 2 is molded over pitch packed layer 3 upper surfaces, thickness is 150mm, and on the soffit having a common boundary with pitch packed layer 3, have the groined type groove that the degree of depth is 20mm, for the asphalt material uniform filling of pitch packed layer 3 is entered in groined type groove, higher level's reinforced concrete floor 2 can be constructed when pitch packed layer 3 seventy percent is dry.

In the present embodiment, for guaranteeing the overall mechanical properties of road surface framework, be also shaped to spacing building block 1 by cement mortar respectively in its both sides, to improve the side direction anti-shear performance of its this frame construction.

More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. a dam-type road surface framework, it is characterized in that, this road surface framework entirety is the dam-type trapezium structure of a symmetry, this dam-type structural framing moulding from bottom to top, article two, the angle of hypotenuse and roadbed is 65 ~ 75 °, for MULTILAYER COMPOSITE layer structure, be followed successively by from bottom to top husky basic unit, subordinate's reinforced concrete floor, pitch packed layer and higher level's reinforced concrete floor, and the ratio of each functional layer thickness is 3:5:2:3, simultaneously, on described subordinate reinforced concrete floor soffit, be evenly equipped with square stable piece, the length of side of this square stable piece is 400 ~ 600mm, described higher level's reinforced concrete floor forms groined type groove at soffit.

2. a kind of dam-type according to claim 1 road surface framework, is characterized in that, the length of side of described square stable piece is 500mm.

3. a kind of dam-type according to claim 1 road surface framework, is characterized in that, the degree of depth of described groined type groove is 1/10 ~ 1/6 of higher level's steel concrete layer thickness.