CN205874892U

CN205874892U - Piece stone road surface structure suitable for very heavy traffic

Info

Publication number: CN205874892U
Application number: CN201620778807.2U
Authority: CN
Inventors: 王慧; 沈佳; 徐晓洛
Original assignee: Shanxi Province Transport Science Research Institute; Shanxi Jiaoke Highway Survey and Design Institute
Current assignee: Shanxi Province Transport Science Research Institute; Shanxi Jiaoke Highway Survey and Design Institute
Priority date: 2016-07-22
Filing date: 2016-07-22
Publication date: 2017-01-11
Anticipated expiration: 2026-07-22

Abstract

The utility model belongs to the technical field of road engineering, a piece stone road surface structure suitable for very heavy traffic is related to, including lay in proper order from bottom to top graded macadam bedding layer, graded broken stone base layer, level on the soil matrix join in marriage macadam base, graded broken stone upper base layer, open the level join in marriage surface course under the cling compound, filter layer, middlings buffer layer and piece stone on the surface course. The utility model provides a road surface structure can adapt to very heavy traffic load character, satisfies accumulative total standard shaft ne> 2.5 107 (Inferior / lane) the road, guaranteeing under capacity's the prerequisite, can effectively reduce permeable pavement's cost.

Description

A kind of block-stone pavement structure being applicable to very heavy traffic

Technical field

This utility model belongs to road engineering technical field, relates to a kind of pavement structure, particularly relates to one and be applicable to spy The block-stone pavement structure of heavy traffic.

Background technology

In today that environmental conservation theory is rooted in the hearts of the people day by day, controlling of natural disaster urban rainwater caused along with country Reason and the pay attention to day by day of water resource recycling, " sponge city " builds the expansion like a raging fire in the whole nation, to former in protection While having the natural disaster that the destroyed Ecology of ecosystem, recovery, improvement urban rainwater bring, reach rain to greatest extent Water collection, water-retention, infiltration, water purification and water resource release etc. circulate benignly, and protect urban water ecosystem.

Porous pavement is the important component part of sponge urban construction.The most conventional permeable pavement structure has three kinds: thoroughly Water coagulation soil surface, asphalt paving, block-stone pavement.Wherein, block-stone pavement is mainly used in footpath or some light traffics Road, which greatly limits the range of application of block-stone pavement, adds economic input.

Utility model content

The purpose of this utility model is to provide a kind of block-stone pavement structure being applicable to very heavy traffic, and this pavement structure can Adapt to very heavy traffic load distribution characteristics, meet accumulated standard axle time N_e>2.5×10⁷The road in (secondary/track), is ensureing the traffic capacity On the premise of, can effectively reduce the cost of porous pavement.

For achieving the above object, this utility model adopts the following technical scheme that

A kind of block-stone pavement structure being applicable to very heavy traffic, it is characterised in that be applicable to the block stone of very heavy traffic described in: Granular cushion that pavement structure includes being laid on the most successively on soil matrix, gravel-sorted subbase, graded broken stone base Basic unit, open gradation antiskid cutting optimal, filter course, medium sand cushion and block stone upper layer on layer, graded broken stone.

As preferably, the block stone upper layer that this utility model is used is that cement concrete prefabricated section stone is paved and formed；Phase Border on the river and be filled with calking between cement concrete prefabricated section stone；Described calking is sand；Described cement concrete prefabricated section stone Length, width and height size is 700mm, 400mm and 300mm respectively.

As preferably, the thickness of the medium sand cushion that this utility model is used is 30mm.

As preferably, the filter course that this utility model is used is that chinlon filters layer of cloth.

As preferably, the open gradation antiskid cutting optimal that this utility model is used is big space open gradation drainage type Colophonium mill Consumption layer, the grating of described open gradation antiskid cutting optimal is OGFC-16, and thickness is 60mm.

As preferably, on the graded broken stone that this utility model is used, the crush values of the building stones in basic unit is not more than 25%, On described graded broken stone, the compactness of basic unit is not less than 100%, and CBR value is not less than 100%, the thickness of basic unit on described graded broken stone Degree is 200mm.

As preferably, the crush values of the building stones in the graded broken stone base that this utility model is used is not more than 25%, institute The compactness stating graded broken stone base is not less than 100%, and CBR value is not less than 100%, and the thickness of described graded broken stone base is 200mm。

As preferably, the crush values of the building stones in the gravel-sorted subbase that this utility model is used is not more than 25%, The compactness of described gravel-sorted subbase is not less than 100%, and CBR value is not less than 100%, the thickness of described gravel-sorted subbase Degree is 200mm.

As preferably, the crush values of the building stones in the granular cushion that this utility model is used is not more than 26%, institute The compactness stating granular cushion is not less than 98%, and CBR value is not less than 100%, and the thickness of described granular cushion is 200mm。

As preferably, the compression rebound modulu of the soil matrix that this utility model is used is not less than 75MPa.

This utility model compared with the prior art, has the following advantages and beneficial effect:

This utility model provides a kind of block-stone pavement structure being applicable to very heavy traffic, including laying the most successively Basic unit, open gradation antiskid on granular cushion on soil matrix, gravel-sorted subbase, graded broken stone base, graded broken stone Cutting optimal, filter course, medium sand cushion and block stone upper layer.The pavement structure that this utility model is used is permeable Kuai Shi road Face structure, it is by the requirement tightened up to soil matrix compression rebound modulu, uses the graded broken stone of big thickness and tightened up Compactness and CBR control, and provide enough plate body bearing capacitys by OGFC so that block-stone pavement is ensureing pavement structure On the basis of permeable, it be provided with enough bearing capacitys and undertake the effect of very heavy traffic load.

Accompanying drawing explanation

Fig. 1 is the structural representation of pavement structure provided by the utility model；

Wherein:

1-soil matrix；2-granular cushion；3-gravel-sorted subbase；4-graded broken stone base；Base on 5-graded broken stone Layer；6-open gradation antiskid cutting optimal；7-filter course；8-medium sand cushion；9-block stone upper layer.

Detailed description of the invention

In conjunction with drawings and Examples, this utility model is further described, but this utility model is not limited only to down The embodiment stated.

Seeing Fig. 1, this utility model provides a kind of block-stone pavement structure being applicable to very heavy traffic, including from bottom to top Basic unit on the granular cushion 2 that is laid on successively on soil matrix 1, gravel-sorted subbase 3, graded broken stone base 4, graded broken stone 5, open gradation antiskid cutting optimal 6, filter course 7, medium sand cushion 8 and block stone upper layer 9.

Wherein:

Block stone upper layer 9, is paved formed by long 700mm, wide 400mm, the cement concrete prefabricated section stone of high 300mm, adopt With sand as the calking of block stone upper layer.

The thickness of medium sand cushion 8 is 30mm.

Filter course 7 uses chinlon filter cloth, it is possible to stop medium sand to enter open gradation antiskid cutting optimal 6.

Open gradation antiskid cutting optimal 6 uses big space open gradation drainage type asphalt wearing layer, and grating is OGFC-16, Thickness is 60mm.

Basic unit 5 on graded broken stone, it is desirable to the crush values of building stones is not more than 25%, use heavy compacting criteria design, compacting Degree is not less than 100%, and CBR value is not less than 100%, and thickness is 200mm.

Graded broken stone base 4, it is desirable to the crush values of building stones is not more than 25%, uses heavy compacting criteria design, compactness Not less than 100%, CBR value is not less than 100%, and thickness is 200mm.

Gravel-sorted subbase 3, it is desirable to the crush values of building stones is not more than 25%, uses heavy compacting criteria design, compacting Degree is not less than 100%, and CBR value is not less than 100%, and thickness is 200mm.

Granular cushion 2, it is desirable to the crush values of building stones is not more than 26%, uses heavy compacting criteria design, compactness Not less than 98%, CBR value is not less than 100%, and thickness is 200mm.

The compression rebound modulu of soil matrix 1 is not less than 75MPa.

Claims

1. the block-stone pavement structure being applicable to very heavy traffic, it is characterised in that be applicable to the Kuai Shi road of very heavy traffic described in: Granular cushion (2) that face structure includes being laid on the most successively on soil matrix (1), gravel-sorted subbase (3), grating Basic unit (5) on crushed rock base course (4), graded broken stone, open gradation antiskid cutting optimal (6), filter course (7), medium sand cushion (8) and Block stone upper layer (9).

The block-stone pavement structure being applicable to very heavy traffic the most according to claim 1, it is characterised in that: above described block of stone Layer (9) is that cement concrete prefabricated section stone is paved and formed；It is filled with calking between adjacent cement concrete prefabricated section stone；Described Calking is sand；The length, width and height size of described cement concrete prefabricated section stone is 700mm, 400mm and 300mm respectively.

The block-stone pavement structure being applicable to very heavy traffic the most according to claim 2, it is characterised in that: described medium sand buffers The thickness of layer (8) is 30mm.

The block-stone pavement structure being applicable to very heavy traffic the most according to claim 3, it is characterised in that: described filter course (7) it is that chinlon filters layer of cloth.

The block-stone pavement structure being applicable to very heavy traffic the most according to claim 4, it is characterised in that: described open gradation resists Sliding surface layer (6) is big space open gradation drainage type asphalt wearing layer, and the grating of described open gradation antiskid cutting optimal (6) is OGFC-16, thickness is 60mm.

The block-stone pavement structure being applicable to very heavy traffic the most according to claim 5, it is characterised in that: described graded broken stone The crush values of the building stones in upper basic unit (5) is not more than 25%, and on described graded broken stone, the compactness of basic unit (5) is not less than 100%, CBR value is not less than 100%, and on described graded broken stone, the thickness of basic unit (5) is 200mm.

The block-stone pavement structure being applicable to very heavy traffic the most according to claim 6, it is characterised in that: described graded broken stone The crush values of the building stones in basic unit (4) is not more than 25%, and the compactness of described graded broken stone base (4) is not less than 100%, CBR value Not less than 100%, the thickness of described graded broken stone base (4) is 200mm.

The block-stone pavement structure being applicable to very heavy traffic the most according to claim 7, it is characterised in that: described graded broken stone The crush values of the building stones in underlayment (3) is not more than 25%, and the compactness of described gravel-sorted subbase (3) is not less than 100%, CBR value is not less than 100%, and the thickness of described gravel-sorted subbase (3) is 200mm.

The block-stone pavement structure being applicable to very heavy traffic the most according to claim 8, it is characterised in that: described graded broken stone The crush values of the building stones in bed course (2) is not more than 26%, and the compactness of described granular cushion (2) is not less than 98%, and CBR value is not Less than 100%, the thickness of described granular cushion (2) is 200mm.

The block-stone pavement structure being applicable to very heavy traffic the most according to claim 9, it is characterised in that: described soil matrix (1) Compression rebound modulu not less than 75MPa.