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Decision-making system and verification of pavement diseases treatment scheme for highway reconstruction and extension


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Fig. 1

Distribution of deflection value in K3139 + 200 ∼ K3202 + 500 section.
Distribution of deflection value in K3139 + 200 ∼ K3202 + 500 section.

Fig. 2

Index distribution of the condition of road surface damage in K3139 + 200 ∼ K3202 + 500 section.
Index distribution of the condition of road surface damage in K3139 + 200 ∼ K3202 + 500 section.

Fig. 3

Distribution of index of road surface damage condition in K3252 + 020 ∼ K3258 + 360 section.
Distribution of index of road surface damage condition in K3252 + 020 ∼ K3258 + 360 section.

Fig. 4

Field excavation verification.
Field excavation verification.

Fig. 5

Distribution map of the pavement diseases treatment plan of K3252 + 020 ∼ K3258 + 360 section of the expressway with a reconstruction and extension in Guangdong Province.
Distribution map of the pavement diseases treatment plan of K3252 + 020 ∼ K3258 + 360 section of the expressway with a reconstruction and extension in Guangdong Province.

Fig. 6

Distribution of deflection value of the Benkleman Beam Deflectometer before and after the old pavement disease treatment.
Distribution of deflection value of the Benkleman Beam Deflectometer before and after the old pavement disease treatment.

Summary of Diseases Statistics in K3252 + 020 ∼ K3258 + 360 Section

Types of disease Crack Looseness Cavity beneath slab Subsidence Water-rich
Structur al layer Quantit y/place Leng th/m Density/(m/km) Quantit y/place Acrea ge/m2 Quantit y//place Acrea ge/m2 Quantit y//place Acrea ge/m2 Quantit y/place Acrea ge/m2
Acreage 265 1239 136.2 0 0 0 0 0 0 0 0
Base 198 1306.8 143.6 12 236 6 16.6 5 98.5 0 0
Sub-base 47 306 33.6 3 60 0 0 1 127.5 0 0
Soil foundation 0 0 0 0 0 0 0 1 90 3 1500

Comparison of the Deflection Value before and after the Treatment of the Old Pavement Diseases

Stack number Treatment scheme Before the treatment After the treatment Variation range before and after the treatment (%)
Deflection representative value (0.01 mm) Coefficient of variation (%) Deflection representative value (0.01 mm) Coefficient of variation (%) Deflection value Coefficient of variation
K3252 + 020 ~ K3252 + 080 After milling 19 cm of the asphalt surface + 18 cm of the upper base, filling the base of C20 plain concrete to top + relaying the surface of asphalt mixture to the top 70 25.5 26 19.1 62.9 25.1
K3254 + 300 ~ K3254 + 480 63 28.1 25 24.6 60.3 12.5
K3256 + 160 ~ K3256 + 280 Deep grouting of the roadbed + surface treatment 43 18.3 24 16.8 44.2 8.2

Scheme of old pavement reconstruction

Newly paved pavement Upper layer 4 cm modified asphalt SMA-13
Mid-layer 6 cm modified asphalt AC-20C
Old road pavement Asphalt pavement 4 cm modified asphalt AC-16C Overlay
4 cm ordinary asphalt AK-13A upper layer
5 cm ordinary asphalt AC-20I mid-layer
6 cm ordinary asphalt AC-25I lower layer
Base 36 cm 5% ~ 6% cement stabilised macadam
Sub-base 20 cm 3% ~ 4% cement stabilised aggregate
Cushion 15 cm graded aggregate
Thickness of new pavement 10 cm
Total thickness 100 cm

History of the attention and maintenance of K3252 + 020 ∼ K3258 + 360 section of the expressway with a reconstruction and extension in Guangdong Province

Initial stake number Terminal stake number Treatment lane In 2003 In 2008 In 2010 In 2014 In 2015 In 2016 In 2017 In 2018
3252 + 020 3252 + 250 Open to traffic 4cmAC13C
3252 + 250 3252 + 524 Carriageway Open to traffic 4cmAC13C Milling and relaying
3252 + 524 3252 + 580 Open to traffic 4cmAC13C
3252 + 580 3252 + 680 Carriageway Open to traffic 4 cmAC13C Milling and relaying
3252 + 680 3252 + 810 Open to traffic 4 cmAC13C
3252 + 810 3253 + 330 Carriageway Open to traffic 4 cmAC13C Milling and relaying
3253 + 308 3253 + 500 Carriageway Open to traffic 4 cmAC13C Milling and relaying
3253 + 500 3253 + 680 Open to traffic 4 cmAC13C
3253 + 680 3253 + 888 Carriageway Open to traffic 4 cmAC13C Milling and relaying
3253 + 888 3255 + 307 Open to traffic 4 cmAC13C
3255 + 307 3256 + 800 Passing lane Open to traffic 4 cmAC13C Milling and relaying
3256 + 800 3257 + 435 Passing lane Open to traffic 4 cmAC13C Milling and relaying Milling and relaying
3257 + 435 3257 + 504 Passing lane Open to traffic 4 cmAC13C Milling and relaying
3257 + 504 3258 + 050 Passing lane Open to traffic 4 cmAC13C Milling and relaying Milling and relaying
3258 + 050 3258 + 545 Passing lane Open to traffic 4 cmAC13C Milling and relaying
3258 + 545 3258 + 848 Passing lane Open to traffic 4 cmAC13C Milling and relaying Milling and relaying
3258 + 848 3258 + 360 Passing lane Open to traffic 4 cmAC13C 4 cmAC16C Milling and relaying
eISSN:
2444-8656
Language:
English
Publication timeframe:
Volume Open
Journal Subjects:
Life Sciences, other, Mathematics, Applied Mathematics, General Mathematics, Physics