Designing and Mechanical Simulation Analysis of Grid-earth-rock Emergency Pavement Slab

Zongjian Lei, Hui Kong, Shepeng Ji, Zhigang Wang

Highway School Chang’an University

Xi’an, P.R.China lzj85168@126.com

Abstract—On the basis of the structure of grid-earth-rock,

fiberglass reinforced epoxy resin, a kind of composite material, is

adopted to prepare the emergency pavement slab for road rapid

repair with the purpose of disaster relief. According to the

structure, material parameter, application environment and

actual conditions of emergency pavement slab, on the premise of

the "partial safety" design principle, a finite element model

which based on the theory of elastic mechanics is established with

model assumptions. Stress states of emergency pavement slab in

the three most unfavorable conditions are analyzed with the help

of ABAQUS to verify the safety and reliability of the slab’s

structural strength. The results indicate that the maximum

tensile stress, the maximum compressive stress and the maximum

shearing stress, as well as the maximum vertical deformation

withstood by the system of emergency pavement slab are in the

strength range of material. The strength of emergency pavement

slab meets the requirement of material and traffic load. The slab

is applicable to engineering practices.

Keywords-emergency pavement; grid-earth-rock slab; disaster relief;

finite element model

I.

72 72

DURA-Base HDPE

-

II.

A.

1

5707978-1-4244-9439-2/11/$26.00 ©2011 IEEE

1

B.

3.5~3.75m3m 2.5m

3.3m 3300mm3300mm×1500mm×80mm 8mm

292mm×292mm×60mm

III. A.

-“ ” “ ”

120KN 100KN1.0MPa 0.7MPa 1s0.1s

1 2 1

MPa 36

MPa 36

0.4

GPa 20.7

0.12

2 “ ”

s 1

MPa 1

m 1.8

KN 120

B.

ABAQUS

3

3

MPa 380

MPa 377

MPa 88.8

mm 30

IV.

A.

1

2

3

4

5 3mm

B.

5708

X Y 3X Y

P=1.0MPaP=1.0MPax

100

mm

3

V.

A.

4

P=1.0MPa P=1.0MPamm

3300292

80

P=1.0MPa P=1.0MPa

3300292

mm

P=1.0MPa P=1.0MPa

3300

mm

292

80

4

B.

ABAQUS

5~ 7 5 56.0MPa

57.7MPa20.7MPa

11.2mm 6 50.0MPa

65.4MPa13.5MPa

10.6mm

a X b Y c X Y d Y

5

a X b Y c X Y d Y

6

5709

a X b Y c X Y d Y

7

7 30.1MPa48.0MPa

8.0MPa9.9mm

4 4

4 ABAQUS

MPa MPa MPa mm

56.0 380 57.7 377 20.7 88.8 11.2 30

50.0 380 65.4 377 13.5 88.8 10.6 30

30.1 380 48.0 377 8.0 88.8 9.9 30

VI.

“ ”-

IA-A-M-02

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