CN103774525A - Long-life urban slate landscape road paving structure - Google Patents

Abstract

The invention discloses a long-life urban slate landscape road paving structure and belongs to the field of municipal engineering. The long-life urban slate landscape road paving structure comprises a slate layer and a soil foundation, and is characterized in that a lime stabilized soil layer, an asphalt macadam sealing layer, a flexible asphalt stabilized macadam foundation layer (LSPM-25) and an asphalt sand layer are sequentially paved between the soil foundation and the slate layer from bottom to top. Compared with the prior art, the long-life urban slate landscape road paving structure has the characteristics that underground water can be quickly drained; the using performance is not influenced; the service life is prolonged; the influence on traffic caused by maintenance is reduced. The long-life urban slate landscape road paving structure has good popularization and application values, and can be widely applied to design and construction of an urban slate landscape road.

Description

A kind of long-life city slabstone view road pavement structure

Technical field

The present invention relates to municipal engineering field, specifically a kind of long-life city slabstone view road pavement structure.

Background technology

City slabstone view road is widely used in the road, tourist district's road in the pedestrian street of each down town, bustling location, can effectively promote city, tourist district's characteristic, leaves deep impression to pedestrian, promotes the popularity of city or tourist district.But the sub-layer of existing city slabstone view road mostly is semi-rigid type base, cement stabilized type basic unit, has the following disadvantages: one, under the effect such as rainwater, clean water, can ftracture, i.e. slurry, broken etc., and the application life of having reduced city slabstone view road; Two, need labour many, need long health, to guarantee its gain in strength, thereby extended the construction period; Three, maintenance difficult, needs large area to mend by replacing a damaged part and health for a long time, has strengthened too the maintenance duration, has affected civic trip traffic.

Summary of the invention

Technical assignment of the present invention is for above-mentioned the deficiencies in the prior art, and the long-life city slabstone view road pavement structure that a kind of efficiency of construction is high, be convenient to maintenance is provided.

Technical assignment of the present invention is realized in the following manner: a kind of long-life city slabstone view road pavement structure, comprise slabstone layer, soil matrix, be characterized between soil matrix and slabstone layer, be equipped with successively lime stabilization soil layer, bitumen macadam seal coat, flexible Asphalt Stabilized Crushed Stone Basement LSPM-25 and asphaltic sands from bottom to top.

The thickness of described lime stabilization soil layer is 8 ~ 12cm.

The thickness of described bitumen macadam seal coat is 1 ~ 2cm.

In order more effectively to guarantee that the lower moisture of infiltration do not invade lower one deck, guarantee that time one deck is not affected by rainwater, the grading limit of bitumen macadam seal coat is preferably:

31.5mm，95%~100%；26.5mm，88%~95%；19mm，60%-80%;16mm,42%~67%；13.2mm，38%~45%；9.5mm，15%~32%；4.75mm，10%~17%；2.36mm，6%~8%；1.18mm，3%~6%；0.6mm，0%~3.5%；0.3mm，0%-3%；0.15mm，0%-2%；0.075mm，0%~2%。

The thickness of described flexible Asphalt Stabilized Crushed Stone Basement LSPM-25 is 8 ~ 12cm.

The thickness of described sand asphalt is 2 ~ 3cm.

In order to guarantee the effect of good water shutoff levelling performance and absorption and dissipation stress, the preferred dense bitumen sand of sand asphalt, its grading limit is preferably:

9.5mm，100%~100%；4.75mm，90%~100%；2.36mm，65%~80%；1.18mm，42%~63%；0.6mm，26%~46%；0.3mm，15%-32%；0.15mm，10%-21%；0.075mm，7%~12%。

Compared with prior art, paving structure of the present invention has following beneficial effect highlightedly:

(1) moisture such as Urban Rain, clean watering can be by oozing under flexible Asphalt Stabilized Macadam, can not accumulate under slabstone or on road surface, can effectively guarantee road surface running vehicle or walking safety;

(2) moisture oozing under is intercepted by sealing, is discharged to the greenbelt energy of both sides by horizontal wall inscription, avoids sub-layer to be subject to the impact of lower infiltration, effectively guarantees intensity, the stability of lower floor's lime stabilization soil layer and soil matrix, the life-span on the road surface of raising;

(3) flexible Asphalt Stabilized Crushed Stone Basement LSPM-25 belongs to hot-mix asphalt mixture, does not need health, and it is short that intensity forms the phase, only needs about 24 hours, and the slabstone making of can constructing, effectively the reduction of erection time, develops traffic in advance;

(4) repair easyly, only need to excise disease position, and repair compacting with identical compound, after 24 hours, get final product open to traffic, shorten maintenance duration and workload.

Accompanying drawing explanation

Accompanying drawing 1 is the structural representation of long-life of the present invention city slabstone view road pavement structure.

The specific embodiment

Long-life of the present invention city slabstone view road pavement structure is described in detail below with specific embodiment with reference to Figure of description.

Embodiment:

Take newly-built as example.

As shown in Figure 1, this urban walking street slabstone road from bottom to top, is laid and is formed by soil matrix 1,10cm lime stabilization soil layer 2,1cm bitumen macadam seal coat 3, the flexible Asphalt Stabilized Crushed Stone Basement 4 of 10cm, 2cm asphaltic sands 5 and slabstone layer 6.

Concrete implementation step and technical requirements are as follows:

The thick lime stabilization soil layer 2 of making 10cm on the smooth soil matrix 1 of compacting, in the preserving period health of regulation, reaches the requirement of strength of Specification Design;

Reach after design strength at lime stabilization soil layer 2, at the thick bitumen macadam seal coat 3 of upper making 1cm, roll with steel cylinder road roller;

The thick flexible Asphalt Stabilized Crushed Stone Basement LSPM-25 4 of making 10cm on bitumen macadam seal coat 3;

On flexible Asphalt Stabilized Crushed Stone Basement 4, lay 2cm dense bitumen sand 5.

Making slabstone 6 on sand asphalt 5.

The grating of sand asphalt, LSPM-25 and asphalt macadam sees the above table.

Claims (7)

1. a long-life city slabstone view road pavement structure, comprise slabstone layer, soil matrix, it is characterized in that: between soil matrix and slabstone layer, be equipped with successively lime stabilization soil layer, bitumen macadam seal coat, flexible Asphalt Stabilized Crushed Stone Basement LSPM-25 and asphaltic sands from bottom to top.

2. long-life according to claim 1 city slabstone view road pavement structure, is characterized in that, the thickness of described lime stabilization soil layer is 8 ~ 12cm.

3. long-life according to claim 1 city slabstone view road pavement structure, is characterized in that, the thickness of described bitumen macadam seal coat is 1 ~ 2cm.

4. long-life according to claim 3 city slabstone view road pavement structure, is characterized in that, the level of described bitumen macadam seal coat is equipped with each particle diameter mineral aggregate by standard size sieve aperture percentage meter, and its grading limit is:

31.5mm，95%~100%；26.5mm，88%~95%；19mm，60%-80%;16mm,42%~67%；13.2mm，38%~45%；9.5mm，15%~32%；4.75mm，10%~17%；2.36mm，6%~8%；1.18mm，3%~6%；0.6mm，0%~3.5%；0.3mm，0%-3%；0.15mm，0%-2%；0.075mm，0%~2%。

5. long-life according to claim 1 city slabstone view road pavement structure, is characterized in that, the thickness of described flexible Asphalt Stabilized Crushed Stone Basement LSPM-25 is 8 ~ 12cm.

6. long-life according to claim 1 city slabstone view road pavement structure, is characterized in that, the thickness of described sand asphalt is 2 ~ 3cm.

7. long-life according to claim 1 city slabstone view road pavement structure, is characterized in that, the grading limit of described sand asphalt is:

9.5mm，100%~100%；4.75mm，90%~100%；2.36mm，65%~80%；1.18mm，42%~63%；0.6mm，26%~46%；0.3mm，15%-32%；0.15mm，10%-21%；0.075mm，7%~12%。

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